The URL can be used to link to this page

Home My WebLink AboutMITIGATION (13) TRIHYDRO ~ oorporation Environmental Engineering 8, Consulting Shell Oil Products US Quarterly NPDES Monitoring Report for Groundwater Remediation Project Shell Bakersfield Refinery Bakersfield, California Third Quarter 2003 TriHydro Corporation 920 Sheridan Street (307) 745-7474 Laramie, Wyoming 82070 FAX: (307) 745-7729 November 25, 2003 Mr. Geoffrey Anderson California Regional Water Quality Control Board Central Valley Region 1685 E. Street Fresno, CA 93706-2020 Re: October 2003 Priority Pollutant Results for MTBE Groundwater Remediation Project, Revised Monitoring and Reporting Program No. R5-2002-0085, Shell Bakersfield Refinery, Bakersfield, California Dear Mr. Anderson: In accordance with the National Pollution Discharge Elimination System (NPDES) permit adopted by the California Regional Water Quality Control Board, Central Valley Region (RWQCB), Waste Discharge Requirements for Equilon Enterprises, LLC DBA Shell Oil Products US, Groundwater Cleanup System, Kern County, Order No. R5-2002-0085, dated June 5, 2002, and revised July 3, 2003; Shell Bakersfield Refinery is Submitting this letter summarizing the October 2003 priority pollutant analytical results. The Revised Monitoring and Reporting Program No. R5-2002-0085 requires Shell to collect and analyze effluent water from IRM-1 and IRM-2 for priority pollutants in April 2003 or 2004 and October 2003. The effluent samples must be analyzed for volatile organic' constituents via 'United States Environmental Protection Agency (USEPA) Method 8260B, semi-volatile organic constituents (SVOCs) via USEPA Method 8270C, metals via USEPA Methods 6020 and 7196, pesticides via USEPA Method 8081A, and poly chlorinated biphenyls (PCBs) via USEPA Method 8082. Shell collected the priOrity pollutant effluent Samples on October 15, 2003 and submitted to Calscience Environmental Laboratories, Inc. (Garden Groove, California). Table la through Table ld provides the results of the priority pollutant analysis including the minimum level (ML), method detection limit (MDL), as well as, the measured or estimated concentration for each reported constituent. Reporting conforms to the Implementation Policy requirements provided in the Policy for Implementation of Toxics Standards for Inland Surface Waters, Bays, and Estuaries of California (Implementation Policy). Method limits for four VOCs (2-chloroethyl vinyl ether, acrolein, acrylonitrile, and naphthalene), 21 SVOCs (1,2 diphenylhydrazine; 2,4 dimethylphenol; 2,4 dinitrophenol; 4,6 dinitro-2- methylphenol; 4-chloro-3-Methylphenol; acenaphthene; benzidine; bis 2-(1-Chloroethoxyl) methane; bis(2-chloroethyl) ether; bis(2-Chloroisopropyl) ether; diethylphthalate; dimethylphthalate; fluoranthene; hexachlorobenzene; hexachlorobutadiene; .hexachloroethane; isophorone; naphthalene; nitrobenzene; N-nitrosodimethylamine; and phenol), and 13 pesticides and PCBs (4,4-DDT, aldrin, chlordane, dieldren, Endosulfan I, Endosulfan II, endosulfan sulfate, endrin, endrin aldehyde, heptachlor, heptachlor epoxide, and toxaphene) H:\Projects\SHELL\Bakersfield~Final\077-028~Pdodty Pollutants\October 2003~Anderson03_pdodty pollutants.doc Mr. Geoffrey Anderson November 25, 2003 Page 2 exceeded the recommended limits provided in Appendix 4 of the Implementation Policy. The laboratory narrative provided by Calscience Environmental Laboratories, Inc. indicates that the minimum limits provided in Appendix 4 are "recommended but not required...for the purposes of gathering data to satisfy Sections 1.3 and 1.4" of the Implementation Policy regarding priority pollutant reporting. The analytical results and laboratory narrative for the priority pollutant analysis are provided 'as Attachment A. Shell will collect the. final round of priority pollutant samples from the IRM systems in April 2004. We appreciate your cooperation and assistance with this project. Questions and comments regarding this letter should be directed to Mr. Steve Overman (Shell Oil Products US) at 661- 326-4351 or to Linda Barnes (TriHydro Corporation) at 307-745:7474. Sincerely, '" Project Mar~,.~ C a Iifo r n i a Re{~r~,~r~-~J1'st #6423 California Certifie~l"lW~1'~geologist #527 License expires October 31, 2005 O77-O28 CC: Mr. Gene Freed, Shell'Oil Products US Mr. Steve Overman, Shell Oil Products US H:\Projects\SHELL\Bakersfield\Final\O77-O28\Pdodty Pollutants\October 2003~AndersonO3_pdodty pollutants.doc Table la. Priority Pollutant Analytical Results, Shell Oil Product US, Bakersfield, California. (October 2003) **VOLATILES** Analytical Results MDL ML Sample- ID Constituent (ug/L) (ug/L) (ug/L) Effluent IRM-1 SP-4 1,1, l',2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,1-Dimethylethanol (TBA) 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Tdchlombenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2~Dichlorobenzene 1,2~Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 2,2-Dichloropropane 2-Butanone 2-Chloroethyl vinyl ether 2-Chlorotoluene 2-Hexanone 4-Chlorot01uene 4-Methyl-2-Pentanone Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon tetrachloride Chlorobenzene Chloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.45 0.46 0.19 0.42 0.4 0.32' 0.55 4.9 0.4 2 0,28 0.22 2.6 0.51 0.29 0.35 0.4 0.11 0,27 0,35 0.28 0.39 1,7 0.51 0.67 2,5 0.16 2,6 3.6 8.7 2.1 0.29 0.26 0.37 0.33 0,87 0,9 0.28 0.4 0.19 0.46 1 1 1 1 1 10= 1 0.5 1 I= 1 1= 1 1= 10= 10= 10= 10= 20 ' 10' 0.5 1 1 2 10= 0.5 1 1 ACCESS - Table_la_Pollutant_VOC_Rpt 11/25/03 Page I of 4 Table la. Priority Pollutant Analytical Results, Shell Oil Product US, Bakersfield, California. (October 2003) **VOLATILES** Analytical Results MDL ML Sample ID 'Constituent (ug/L) (ug/L) (ug/L) Chloroform Chloromethane cis-1,2-Dichloroethene cis-l,3-Dichlompmpene Dibromochloromethane ' Dibromomethane Dichlorodifluommethane Diisopropyl Ether Ethanol Ethylbenzene Ethyl-t-Butyl Ether Isopropylbenzene m,p-Xylene Methylene Chloride MTBE Naphthalene nButylbenzene n-Pmpylbenzene o-Xylene p-lsopropyltoluene sec-Butylbenzene Styrene Tert-AmyI-Methyl Ether tert-Butylbenzene Tetrachlomethene Toluene trans-l,2-Dichloroethene trans-l,3-Dichlompropene Trichloroethene Trichlorofluoromethane Vinyl acetate Vinyl Chloride Effluent IRM-2 SP-8 1,1,1,2-Tetrachloroethane 1,~l,l-Trichlomethane 1,1,2,2-Tetrachlomethane 1,1,2-Trichloroethane l,l-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,1-Dimethylethanol (TBA) 1,2,3-Trichlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND NDQ 1.8 Est. Conc. J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND .ND '0.45 0.43 0.56 0.44 0.29 0.46 0.47 0.27 52 0.19 0.33 0.17 0.17 1.7 0.28 0.56 0.34 0.24 0.16 0,17 0.11 0.14 0.32 0.23 0.2 0.35 0.6 0.3 0.48 0.27 3.6 0.35 0.45 0.46 0.19 0.42 0.4 0.32 0.55 4.9 0.4 1 2 0.52 1 100 z 0.5 5~ 10' I2 12 12 0.5 1 1 0.5 2 1 102 10z 0.5 1 1 1 12 102 12 ACCESS - Table_la_Pollutant..VOC_Rpt 11/25/03 Page 2 of 4 Table la. Priority Pollutant Analytical Results, Shell Oil Product US, Bakersfield, California. (October 2003) **VOLATILES** Analytical . Results MDL (ug/L) (ug/L) Sample ID Constituent I 1,2,3-Trichloropropane ND 2 5 = ML (ug/L) 1,2,4-Trichlorobenzene 1,2,'4-Trimethylbenzene 1,2-Dibromo-3-Chlompmpane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropmpane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlombenzene 2,2-Dichloropropane 2-Butanone 2-Chloroethyl vinyl ether 2-Chlomtoluene 2-Hexanone 4-Chlorotoluene 4-Methyl-2-Pentanone Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Broomodichloromethane Bromoform Bmmomethane Carbon Disulfide Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene Dibromochlommethane Dibmmomethane Dichlorodifluoromethane Diisopmpyl Ether Ethanol Ethylbenzene ND 0.28 ND 0.22 ND 2.6 ND 0151 ND 0.29 ND 0.35 ND 0.4 ND 0.11 ND 0.27 ND 0.35 ND 0.28 ND 0.39 ND 1.7 ND 0.51 ND 0.67 ND 2.5 ND 0.16 ND 2.6 ND 3.6 ND 8.7 ND 2.1 ND 0.29 ND 0.26 ND 0.37. ND 0.33 ND 0.87 ND 0.9 ND 0.28 ND. 0.4 ND 0.19 ND 0.46 ND 0.45 ND 0.43 ND 0.56 ND 0.44 ND 0.29 ND 0.46 ND 0.47 ND 0.27 ND 52 ND 0.19 5= 1 0.5 1 1= 1 1= 1 · 1= 10= i= 102 10= 20 ' 10' 0.5 1z 1 2 10= 0.5 1 1 1 2 0.5= 1 100 = 0.5 ACCESS - Table_la_Pollutant_VOC_Rpt 11/25/03 Page 3 of 4 Table la. Priority Pollutant Analytical Results, Shell Oil Product US, Bakersfield, California'. (October 2003) **VOLATILES** Sample ID Constituent Analytical Results MDL ML (ug/L) (ug/L) (ug/L) Ethyl-t-Butyl Ether Isopropylbenzene m,p-Xylene Methylene Chloride MTBE Naphthalene n-Butylbenzene n-Propylbenzene o-Xylene p-lsopropyltoluene sec-Butylbenzene Styrene Tert-AmyI-Methyl Ether tert-Butylbenzene Tetrachloroethene Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene Trichloroethene Trichlorofluoromethane Vinyl acetate Vinyl Chloride ND ND ND ND ND ND ND ND ND ND' ND ND ND ND ND ND ND biD ND ND '0.33 0.17 0.17 1.7 0.28 0.56 0.34 0.24 0.16 0.17 0.11 0.14 0.32 0.23 0.2 0.35 0.6 0.3 0.48 0.27 3.6. 0.35 22 5' 10~ I2 1= 1= 0.5 1 1 0.5= 1 102 10= 0.5 Notes: ML MDL ND pg/L J NDQ Est. Conc. Effluent IRM-1 SP-4 MDL MI. - minimum level pH = 6.81 0.01 0.01 - method detection limit. Hardness, Total = 180 mg/L .99 2 - constituent was not detected. - micrograms per liter. Effluent IRM-2 SP-8 - estimated concentration due to methylene chloride detection in method blank. - detected but not quantified pH = 7.26 0.01 0.01 -estimated concentration. Hardness, Total = 150 mg/L .99 2 - laboratory ML greater then recommended RWQCB minimum levels, Appendix 4 of Implementation Policy. Reference laboratory narrative in Appendix A for explanation. - RWQCB ML not available. ACCESS - Table._1 a_PollutanLVOC_Rpt 11/25/03 Page 4 of ,4 Table lb. Priority Pollutant Analytical Results, Shell Oil Product US, Bakersfield, California. (October 2003) **SEMI-VOLATILES** S~nple ID Constituent Analytical Results MDL · ML (ug/L) (ug/L) (ug/L) Effluent IRM-1 SP-4 1,2,4-Trichlorobenzene ND 1,2-Dichlorobenzene ND 1,2-Diphenylhydrazine ND 1,3-Dichlombenzene ND 1,4-Dichlorobenzene ND 2,4,6-Trichlorophenol ND 2,4-Dichlorophenol ND 2,4-Dimethylphenol ND 2,4-Dinitrophenol ND 2,4-Dinitrotoluene ND 2,6-DinitrotoJuene ND 2-Chloronaphthalene ND 2-Chlorophenol ND 2-Nitrophenol ND 3,3-Dichlorobenzidine ND 4,6-Dinitm-2-methylphenol ND 4-Bromophenyl-phenylether ND 4-Chloro-3-Methylphenol ND 4-Chlorophenyl-phenylether ND 4-Nitrophenol ND Acenaphthene ND Acenaphthylene ND Anthracene ND Benzidine · ND Benzo(a)anthracene ND · Benzo(a)pymne ND Benzo(b)fluomnthene ND Benzo(g,h,i)perylene ND Benzo(k)fluoranthene ND· Bis(2-chlomethoxy)methane ND Bis(2-chlomethyl)ether ND Bis(2-chlomisopropyl)ether ND Bis(2-ethylhexyl)phthalate ND Butylbenzylphthalate ND Chrysene ND Dibenzo(a,h)anthracene ND Diethylphthalate ND Dimethylphthalate ND Di-n-butylphthalate ND Di-n-octylphthalate ND Fluoranthene ND 0.65 5 0.56 5 ~ 0.19 2~ 0.58 5 ~ 0.57 ' 5 ~ 0.61 5 0.53 5 0.6 5 ' 1.3 25 ' 0.5 5 0.56 5 0.65 5 0.5 5 0.59 10 0.63 5 1.7 25 ~ 0.61 5 0.58 5 ~ 0.61 5 0.43 5 0.7 5 ~ 0.72 5 0.75 5 0.31 50 ~ 0.56 5 0.44 · 5 0.62 5 0.36 5 0.85 5 0.58 10 ~ 0.51 10 ~ 0.76 5 ~ 0.51 5 0.52 5 0.64 5 0.41 '5 0.7 5 ~ 0.65 5 ~ 0.73 5 0.5 5 0.76 5 ~ ACCESS - Table_lb_Pollutant_SVOC_R ~11/25/03 Page 1 of 3 Table lb. Priority Pollutant Analytical Results, Shell Oil Product US, Bakersfield, California; (October 2003) '*SEMI-VOLATILES** Analytical Results MDL ML Sample ID Constituent (ug/L) (ug/L) (ug/L) FJuorene Hexachlorobenzene Hexachlombutadiene Hexachlorocyclopentadiene Hexachloroethane Indeno(1,2,3-cd)pyrene Isophorone Naphthalene Nitrobenzene N-Nitrosodimethylamine N-Nitrosod -n-prop¥1ami,ne N-Nitmsodiphenylamine Pentachlorophenol Phenanthrene Phenol Pyrene Effluent IRM-2 SP-8 1,2,4-Trichlombenzene 1,2-Dichlorobenzene 1,2-Diphenylhydrazine 1,3-Dichlorobenzene 1,4-Dich!orobenzene 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitmtoluene 2,6-Dinitrotoluene 2-Chloronaphthalene 2-Chlomphenol 2-Nitrophenol 3,37Dichlorobenzidine 4,6-Dinitro-2-methylphenol 4-Bmmophenyl-phenylether 4-Chloro-3-Methylphenol 4-Chlomphenyl-phenylether 4-Nitrophenol Acenaphthene Acenaphthylene Anthracene Benzidine Benzo(a)anthracene ND 0.69 ND 0.61 ND 0.59 ND 0.22 ND 0.49 ND 0.42 ND 0.62 ND 0.72 ND 0.67 ND 0.55 ND 0.65 ND 0.68 ND 0.37 ND 0.75 ND 0.58 ND 0.68 ND ~'0.65 , ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 'ND 0.56 0.19 0.58 0.57 0.61 0.53 0.6 1.3 0.5 0.56 0.65 0.5 0.59 0.63 1.7 0.61 0.58 0.61 0.43 0.7 0.72 0.75 0.31 0.56 5 5~ 15' 5~ 5 5~ 25 ' 10~ 5 5~ 5 5 5~ 5 5 2' 5~ 5~ 5 5 5' 25 ' 5 5 5 5 10 5 25 ' 5 5 5 5 5 50 ' 5 ACCESS - Table_lb_PollutanLSVOC_R 1 I/'25/03 Page 2 of 3 Table lb. Priority Pollutant Analytical Results, Shell Oil Product US, Bakersfield, California. (October 2003) **SEMI-VOLATiLES** Analytical Results MDL ML Sar~ple ID Constituent (ug/L) (ug/L) (ug/L) Benzo(a)pyrene ND 0.44 5 Benzo(b)fluoranthene ND 0.62 5 Benzo(g,h,i)perylene ND 0.36 5 Benzo(k)fluoranthene ND 0.85 5 Bis(2-chloroethoxy)methane ND 0.58 10 ' Bis(2-chloroethyl)ether ND 0.51 10 ~ Bis(2-chloroisopropyl)ether ND 0.76. 5 ~ Bis(2-ethylhexyl)phthalate ND 0.51 5 Butylbenzylphthalate ND 0.52 5 Chrysene ND 0.64 5 Dibenzo(a,h)anthracene ND 0.41 5 Diethylphthalate ND 0.7 5 ' Dimethylphthalate ND 0.65 5 ' Di-n-butylphthalate ND 0.73 5 Di-n-octylphthalate ND 0.5 5 Fluoranthene ND 0.76 5 ' Fluorene ND 0.69 5 Hexachlorobenzene ND 0.61 5 ~ Hexachlorobutadiene ND 0.59 5 ~ Hexachlorocyclopentadiene ND 0.22 15 ~ Hexachloroethane ND 0.49 5 ' Indeno(1,2,3-cd)pyrene ND 0.42 5 Isophorone ND 0.62 5 ' Naphthalene ND 0.72 5 ~ Nitrobenzene ND 0.67 25 ~ N-Nitrosodimethylamine ND 0.55 10 ~ N-Nitrosodi-n-propylamine ND 0.65 5 N-Nitrosodiphenylamine ND 0.68 5 ~ Pentachlorophenol ND 0.37 5 Phenanthrene ND 0.75 5 Phenol ND 0.58 5 ~ Pyrene ND 0.68 5 Notes: ML MDL ND pg/L J NDQ Est. Conc. Effluent IRM-1 SP-4 MDL MI. : minimum level pH = 6.81 0.01 0.01 - method detection limit. Hardness, Total = 180 mg/L .99 2 * constituent was not detected. ' - micrograms per liter. Effluent IRM-2 SP-8 - estimated concentration due to methylene chlodde detection in method blank. - detected but not quantified pH = 7.26 0.01 0.01 - estimated concentration. Hardness, Total = 150 mg/L .99 2 - laboratory ML greater then recommended RWQCB minimum levels, Appendix 4 of Implementation Policy. Reference laboratory narrative in Appendix A for explanation - RWQCB ML not available. · ACCESS - Table_lb_Pollutant_SVOC_R 11/25/03 Page 3 of 3 Table lC. Priority Pollutant Analytical Results, Shell Oil Product US, Bakersfield, California. (October 2003) **METALS** Analytical Results MDL ML Sample ID 'Constituent (ug/L) (ug/L) (ug/L) Effluent IRM-1 SP-4 Antimony, Total Arsenic, Total Beryllium, Total Cadmium, Total Chromium, Hexavalent Chromium, Total Copper, Total Lead, Total Mercury, Total Nickel, Total Selenium, Total Silver, Total Thallium, Total Zinc, Total Effluent IRM-2 SP-8 Antimony, Total Arsenic, Total Beryllium, Total Cadmium, Total Chromium, Hexavalent ChromiUm, Total Copper, Total Lead, Total Mercury, Total Nickel, Total Selenium, Total Silver, Total Thallium, Total Zinc, Total NDQ 0.48 Est. Conc. 0.079 ND 0,169 ND 0,0553 NDQ 0.0238 Est. Conc. 0.0151 ND 0.057 0.728 0.0184 1,81 0.0181 0.912 0.013 NDQ 0.0933 Est. Conc, 0.0672 1.79 0.0234 ND 0.783 NDQ 0.0922 Est. Conc. 0.0183 ND 0.0153 70.3 0.341 0.5 1 0.2 0.2 1= 0.5 0.5 0.5 0.2 0.5 1 0.2 0.5 1 NDQ 0.285 Est. Conc. 0.079 0.5 ND 0.169 1 'ND 0.0553 0.2 NDQ 0.0156 Est. Conc. 0.0151 0.2 ND 0.057 1 2 0.812 0.0184 0.5 0.894 0.0181 0.5 NDQ 0.27 Est. Conc. 0.013 0.5 NDQ 0.0973 Est. Conc. 0.0672 0.2 1.54 0.0234 0.5 ND 0.783 1 NDQ 0.0551 Est. Conc. 0.0183 0.2 ND 0.0153 0.5 29.5 0.341 1 Notes: ML MDL ND pg/L J NDQ Est. Conc. Effluent IRM-1 SP-4 MDL MI. - minimum level pH = 6.81 0.01 0.01 - method detection limit. Hardness, Total = 180 mg/L .99 2 - constituent was not detected. - micrograms per liter. Effluent IRM-2 SP-8 - estimated concentration due to methylene chloride detection in method blank. '; detected but not quantified pH = 7.26 0.01 0.01 - estimated concentration. Hardness, Total = 150 mg/L .99 2 - laboratory ML greater then recommended RWQCB minimum levels, Appendix 4 of Implementation Policy. Reference laboratory narrative in Appendix A for explanation. - RWQCB ML not available. ACCESS - Table_lc_Pollutant_Metals_R f '1/'25/03 Page 1 of 1 Table ld. Priority Pollutant Analytical Results, Shell Oil Product US, Bakersfield, California. (October 2003) **PESTICIDES & PCBs** Sample ID Constituent Analytical Results MDL ML (ug/L) (ug/L) (ug/L) Effluent IRM-1 SP-4 4,4-DDD 4,4-DDE 4,4-DDT a-BHC Aldrin b-BHC Chlordane d-BHC Dieldrin Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde g-BHC (Lindane) Heptachlor Heptachlor epoxide PCB-1016 PCB-1221 PCB-1232 PCB-1242 PCB-1248 PCB-1254 PCB-1260 PCB-1262 Toxaphene Effluent IRM-2 SP-8 4,4-DDD 4,4-DDE 4,4-DDT a-BHC Aldrin b-BHC Chlordane d-BHC Dieldrin Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde ND 0.012 0.05 ND 0.012 0.05 ND 0.015 0.05 ~ ND 0.013 0.05 ~ ND 0.01 , 0.05 ~ ND 0.0082 0.05 ~ ND 0.085 0.5 ~ ND 0,018 0.05 ~ ND 0.012 0.05 ~ ND 0.0052 0.05 ~ ND 0.011 0.05 ~ ND 0.0079 0.05 ND 0.012 0.05 ~ ND 0.0052 0.05 ~ ND 0.02 0.05 ~ ND 0.0074 0.05 ND 0.023 0.05 ND 0.077 0.5 ND 0.05 0.5 ND 0.05 0.5 ND 0.05 0.5 ND 0.05 0.5 ND 0.05 0.5 ND 0.12' 0.5 ND 0.05 0.5 2 ND 0.31 2 ~ ND 0.012 0.05 ND 0.012 0.05 ND 0.015 0.05 ~ ND 0.013 0.05 ~ ND 0.01 0.05 ~ ND 0.0082 0.05 ~ ND 0.085 0.5 ~ ND 0.018 0.05 ~ ND 0.012 0.05 ~ ND 0.0052 0.05 ~ ND 0.011 0.05 ~ ND 0.0079 0.05 ND 0.012 0.05 ND 0.0052 0.05 ACCESS - Table_Id_Pollutant_Pesticide 11/25/03 Page I of 2 t Table ld. Priority Pollutant Analytical Results, Shell Oil Product US, Bakersfield, California. (October 2003) **PESTICIDES & PCBs** · Analytical Results MDL ML Sample ID Constituent (ug/L) (ug/L) (ug/L) g-BHC (Lindane) Heptachlor Heptachlor epoxide PCB-1016 PCB-1221 PCB-1232 PCB-1242 PCB-1248 PCB-1254 PCB-1260 PCB-1262 Toxaphene ND '0.02 ND 0.0074 ND 0.023 ND 0.077 ND 0.05 ND 0.05 ND 0.05 ND 0.05 ND 0.05 ND 0.12 ND 0.05 ND 0.31 0.05 0.05 0.05 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 2 2~ Notes: ML MDL ND pg/L J NDQ Est. Conc. - minimum level - method detection limit. - constituent was not detected. - micrograms per liter. - estimated conCentration due to methylene chloride detection in method blank. '- detected but not quantified - estimated conCentration. .Effluent IRM-1 SP-4 'pH = 6.81 · Hardness, Total = 180 mg/L .Effluent IRM-2 SP-8 pH = 7.26 Hardness, Total = 150 mg/L MDL MI. 0.01 0.01 .99 2 0.01 0.01 .99 ~ 2 - laboratory ML greater then recommended RWQCB minimum levels, Appendix 4 of Implementation Policy. ReferenCe laboratory narrative in Appendix A for explanation. - RWQCB ML not available. ACCESS - Table_Id_Pollutant_Pesticide 11/25/03 Page 2 of 2 ATTACHMENT A PRIORITY POLLUTANT ANALYTICAL REPORT ' OCTOBER 3'1, 2003 H:\Projects\SHELL\Bakemfield\Final~077-028\Priofity Pollutants\October ·2003~Anders°n03-pfi°dtY POllutants.doc Message Page 1 of 2 Paul Michalski From: Sent: To: Cc: Larry Leto [!lem@calscience,com] Friday, November 21, 2003 2:46 PM Paul Michalski; Minh Nguyen Justin Pruis; Mark Passarini; Mnguyen@calscience.com Subject: RE: Request for Narratives. Priority Pollutant Reporting, IRM Systems, Shell Bakersfield Refinery Paul -- Calscience employs standardardized procedures for determining Method Detection Levels (MDL) and Reporting Levels (RL) under our NELAC and DHS ELAP accreditiation permit. This permit directly references 40 CFR as the guiding document. As such the MDLs and RLs derived for each laboratory are performance based, unique to the method and an instrument or set of instruments. Since the introduction of the SIP program in 2000, certain compound Minumum Levels (ML) as outlined in Appendix 4 cannot be met by current day to day technology typically utilized by commerical laboratories. Calscience sought guidance from the SWRCB on this and according to the SWRCB, "It is recommended but not required that laboratories be able to meet MLs for the purposes of gathering data to satisfy Sections 1.3 and 1.4" of the Policy. This statement was included in a list of"Frequently Asked Questions" that was provided to us by the SWRCB, attached. Calscience has analyzed and reported several hundred sample points using our best available MDLs and RLs, To date no discharger or permit holder has been subjected to a Notice of Violation based solely on the reported MDLs or RLs from Calscience. The RLs and MDLs presented represent the lowest levels achievable by Calscience, while adhering to its. Quality Assurance objectives. Larry Lem Project Manager Calscience Environmental Laboratories, Inc. 7440 Lincoln Way. Garden Grove, CA 92841-1432 Tel; (714) 895 5494, ext. 138 Fax: (714) 894 7501 LLem@calscience.com ..... Original Message ..... From: Paul Michalski [mailto:pmichalski@trihydro.com] Sent: Wednesday, November 19, 2003 3:53 PM To: .llem@calscience.com; Minh Nguyen Cc: 3ustin Pruis; Hark Passarini Subject: Request for Narratives, Priority Pollutant Reporting, [RH Systems, Shell BakerSfield Refinery Larry/Nguyan, The Method Limit for the following constituents were reported above the acceptable limit provided' in Appendix 4 of the Policy for Implementation of Toxics Standards for Inland Surface Waters, Bays, and Estuarfes of California (Implementation Policy). Can you please provide laboratory narrative/documentation explaining why these values are acceptable under the requirements of the Implementation Policy. Thanks for your help. Paul Michalski, P.G. Geologist TriHydro Corporation 1 !/24/2003 8- ?-Or; 7:5~AM; ;818 886 0242 Frequently Asked Questions Why b testing required? Testing/'or priority pollutants is required by thc Policy for _Implementation of Toxic Standards for Inland Surface W~te_rs, _Enclosed Bays, and Estuaries of California, also known as the State's Implcmcn_~tion ._Policy (SIP). The California Toxics Rule (CLX) issued by U.S. EPA emphasized early in its preamble that California had been the only state in th/~'nation for which Clean._ Water Act' Section 303(c)(2)(B) water quality standards for priority pollutants had remained substantially unimp!emcnted. The CTR promulgated water quality-based criteria for priority pollutants. The SIP provides the implementatioB provisions for priority pollutant criteria and as such established a standardized approach as statcwidc policy for permitting discharges of toxic pollutants to non-ocean waters. Sp_ec_ific direction for the collect/on ofprior/ty pollutant data associated with NPDES disch~rF, s can be ~found in Section 1.2 of thc SIP. Thc data must be suffici~t to conduct thc reasonable potential analysis in Section 1.3 (Determination of Priority Pollutants Rcquid~_ Water Quality-Based Effluent Limitations). If such effluent !'unitations are required by that analysis, be date must_ also bc sufficient to apply to Section 1.'i (Calculation of~ffiucnt Lknitatio~), V~no has t° do the testing? Unless categorically and/or specifically exempted by the Regional Board all NPDES dischargcrs..must do thc testing. The sunset for such dischargers to provide the data is emphasized in Section 1.2 as not to exceed three years from the effective date of thc SIP (which was May 18, 2000). It is _the dischargcr's responsibility to provide all data and other information requested by the Regional Water · Quality Control Board (RWQCB) before thc issuance, rcissuancc, or modification of a permit to thc · extent feasible. What labs are ava/lable to do the testing? Unfortunatcly, specific labs cannot bc recommended by name. Thc State Water Rcsourccs Control Bo~d is continuing its review of labs that claim to bc able to satisfy Minimum Lcvcls (MLs) described in Section 2.4 Reporting Rcqui~.icnts. Such reporting requ/rements become i_m_portant for determining compliance With effluent limitations developexi for priority pollutants. It is recommended bu! not required that labs be able to meet MLs for the purposes of gathering data to satisfy Sections 1.3 and 1.4. How much does it cost? Lab prices will vary by thc individual lab and by test method, and possibly by quaniity of samples to be analyzed. Thc following arc very wugh prices for typical required analyses. Volatile organics - $150 Scrni-volatilcs - S150 Metals (each) except As, Se, Hg - Message 307.745.7474 - phone 307-745-7729 - fax VOCs 2-Chloroethyl vinyl ether Acrolein Acrylonitrile Naphthalene SVOCs 1,2 Diphenylhydrazine 2,4 DimethYlphenol 2,4 Dinitrophenol 4;6 Dinitro~2-methylphenol 4-Chloro-3-Methylphenol Acenaphthene Benzidine bis 2-(1.Chloroethoxyl) methane bis(2-ch!oroethy!) ether bis(2-Chloroisopropyl) ether Diethylphthalate. Dimethylphthalate Fluoranthene Hexachlorobenzene Hexachlorobutadiene Hexachloroethane Isophorone Napthalene Nitrobenzene N-Nitrosodimethylamine Phenol PesticideslPCBs 4,4-DDT AIdrin Chlordane Dieldren Endosulfan I Endosulfan Endosulfan sulfate Endrin Endrin aldehyde Heptachlor Heptachlor epoxide Toxaphene Paul Michalski, P,G, Geologist TriHydro Corporation 307-7-45-7474 - phone 307-7-45-7729 - fax ! 1/24/2003 Page 2 of 2 ~-alscience I~F-pvironmenMI ~ aboratories, Inc. October 31 ,. 2003 Linda Blake TriHydro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield; CA 93311-0000 Subject: Calscience Work Order No.: Client Reference: 03-10-0962 Shell Bakersfield Refinery, Bakersfield, CA Dear Client: Enclosed is an analytical report for the above.referenced project. The samples included in this report were received 10/16/2003 and analyzed in accordance with the attached chain-of-custody. Unless otherwise noted, all analytical testing was accomplished in accordance with the guidelines established in our Quality Assurance Program Manual, applicable standard operating procedures, and other related documentation. The original report of any subcontracted analysis is provided herein, and follows the standard Calscience data package. The results in this analytical report are limited to the samples tested and any reproduction thereof must be made in its entirety. If you have any questions regarding this report, please do not hesitate to contact the undersigned. ~d~es, Inc. Project Manager Quality Assurance Manager 7440 Lincoln Way, Garden Grove, CA 92841-1432 ,. TEL: (714) 895-5494 · FAX: (714) 894-7501 ;818 866 0242 ~ 19/ 19 FrequmtlY Asked Questions As, Se, Hg (each) -. $20 CN, Phenol (each) - $25 Pesticides - $150 PCBs - $1 $0 Dioxin/Furans - $1200 Total approxhnatcly. $2000 Page 2 of 2 What are the lab results used for? Lab results from effluent data arc used for reasonable potential determination in Section 1.3, step 3 (sec page 4). The coefficient of variation (CV) from effluent data is also used in establi.~hirtg effluent limitations where Table I and Table 2 are usc'd in setting effluent limitationsin Section 1,4 B, steps 3 and 5. (see pages 6-9). Lab results from ambient data arc used for reasonable potential determination in Section 1.3, step_s 5 and 6 (see page 4). Ambient data is also used for thc calculation of effluent limitations_, in the steady- state mass balance equation in Section 1.4 B, step 2 (sec page 6). That data becomes of use ifa mixing zone and dilution credit will be considered by thc RWQCB. Ifa mixing zone and dilution credit will not be'considered by the RWQCB for any priority pollutant, the ambient data is still r~luircd by the fore-mentioned reasonable potential determination'in steps 5 and 6. A final usc of ambient data is if intake water credits are being considered under Section 1.4.4 (sec pages 17-18). In that case, c~ intake water concentrations are also required. Note that in addition to effluent data required by Section 3 for all dioxin/furan congeners, ambient data for 2,3,7,8=TCDD will be required to perform reasonable potential analysis under Section 1,3 and possibly to establish effluent limitations if necessary under Section 1.4 B. This is because 2,3,7,8- TCDD is a priority pollutant established by the CTR. With the exception of dioxin/furan congener monitoring requirements detailed by Section 3, the frequency of data collection will be to the discretion o£RWQCBs as specified in Water Code Section 13267 letters issued to dischargers. Dischar§crs have the option to collect data over and beyond such minimum requirements. For example, there may be instances when a better understanding of effluent variability is desired so that default values of CV do not have to bc used in the development ofeffiu~t limitations (see step 3, page 6). Dischargers also have the option ofusing as sensitive a lab method as allowed to obtain effluent and ambient data. Thc incentive for doing so is for the special case if all samples are below reported detection limits, where the respective maximum effluent concentration or ambient background concentration will bc set equal to thc lowest of individual reported d~tection limits. Can I obtain a copy of the State Implementation Policy." Yes, you can obtain a copy of the SIP by accessing the State Water Resources Control Board Web Site at http://www.swrcb.ca.gov/iswp/index.htm · F._nvironmental· ~ aboratories, Inc. TriHydro Corporation 8_200 Stockdale Hwy., Suite M-10, #329 BakerSfield, CA 93311-0000 ANALYTICAL REPORT Dat~ P, eceived: 10/16/03 Work Order No: 03-10-0962 Preparation: N/A Method: E_PA 130.2 Project: Shell Bakersfield Refinery, Bakersfield, CA. Page 1 of ! Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID Parameter Result RI_ MDI,. DF Ctcl~l Units Hardness, Total !80 2 0.99 t mg/L Parameter Result· RI_ MDL DF Qual Unit~ Hardness, Total ND 2.0 0.99 t mg/L .~ I ' RL - Reporting Umil , DF - Dilution Factor , Oual. Qualifiers ~~ 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 · FAX: (714) 894-7501 ~=alscience vironmental · · ~,~ aboratories, Inc. TriHydro Corporation - 8200 Stockda!e Hwy., Suite M-10, #329 Bakersfield, CA 93311~0000 ANALYTICAL REPORT Date Received: 10/16/03 Work Order No: 03-! 0-0962 Preparation: N/A Method: EPA 150,1 Project; Shell Bakersfield Refinery, Bakersfield, CA Page 1 of 1 Lab Sample Date Date Date Client Sample Number Number Collected Mabtx Prepared Analyzed Qc Batch ID parameter pH Result RL MDI~ DF Qual Unit~ 6.81 0.01 0.01 I pH units - ~ i Limit , DF - Oilution F~tor ? Qua! ~ Qualifiers port~g 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 FAX: (714) 894-7501 t --alscience ._nVironmental i_, aboratorfes, Inc. TriHydro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 9331 t~0000 ANALYTICAL REPORT Date Received: 10/16/03 Work Order No: 03-'10-0962 Preparation: Total Digestion Method: EPA 6020 Project: Shell Bakersfield Refinery, Bakersfield, CA Page 1 of t Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID Parameter Resul~t RL MDI,' D._[F Oual Units Antimony 0.000480 0.00050 0,0000790 1 J mg/L Arsenic ND 0.00100 0.000169 I mg/L Beryllium ND 0.00020 0.0000553 I mglt. Cadmium 0.0000238 0.00020 0.0000151 I , J mg/L Chromium (Total) 0.500728 0.00050 0.0000184 1 mg/L Copper 0.00181 0.00050 0.0000181 1 mg/L Lead 0.000912 0.00050 0.0000130 I mg/L Nickel 0.00179 0.00050 0.0000234 1 mg/L Selenium ND 0.00100 0,000783 1 mg/L Silver 0.0000922 0.00020 0.0000183 I J mg/L Thallium ND 0.00050 0.0000153 1 mg/L Zinc 0.0703 0,0010 0,000341 1 mg/L Parameter Result RL MDL D._.[F Ouel Unl~ Antimony 0.000692 0.00050 0.0000790 1 J mgfl. Arsenic 0.000375 0.00100 0.000169 I J rog/L, Beryllium ND 0.00020 0.0000553 1 mg/L Cadmium ND 0.00020 0.0000151 1 rng~ Chromium (Total) 0.0000234 0.00050 0.0000184 1 J Copper ND 0.00050 0.0000181 1 mg/L ~_ead ND 0.00050 0.0000130 I mg/L Nickel 0.0000590' 0.00050 0.0000234 1 J mg/L Selenium 0.00121 0.00!00 0.000783 I mg/L Silver ND 0.00020 0.0000183 1 mg/L Thallium ND 0.00050 0.0000153 1 mg/L Zinc ND 0.00100 0.000341 I rog/l_ ,~ I RL - Reporting Umit , DF, Dilution FaCtor , Qual - Qualifiers Grove, 92841-1 432 7440 Lincoln Way, Garden CA TEL: (714) 895-5494 · FAX: (714) 894-7501 l =-alscience __nvironmental aboratories, Inc. TriHydro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311-0000 ANA_LYT!CAL REPORT Date Received: Work Order No: Preparation: Method: 10/16/03 03-10-0982 EPA 7470A Total EPA 7470A Project; Shell Bakersfield Refinery, Bakersfield, CA Page I of 1 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed Qc Batch ID Parameter Result RL MDL D._.EF Q%I U.nlts Mercury 0.0000933 0.00020 0.0000672 1 J mg/L Per~meter Result RL M01. DF Oual Units 0.0000794 0.00020 0.0000672 I J mg/L I I RL- RePo~llng Umit ~ DF- Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 · FAX: (714) 894-7501 al$cience _nVironmental aboratories, Inc. TriHydro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 933! 1-0000 ANALYTICAL REPORT Date Received: -10/16/0,~ Work Order No: 03-10-0962 Preparation: N/A Method: EPA 7199 Project: Shell Bakersfield Refinery, Bakersfield, CA Page 1 of 1 Lab Sample Date Date Date , * Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID Comment(s): .Sample anal~ed 0u~ide m~mmend~ holding time. Parameter ResuI~ ~ ~D~ D~ Ou~l Uni~ Chromium, He~lent ND 1.0 0.057 1 u~ PprPmeter Chromium, Hexavalent Result Ou,al ND RI. MD~- DF Unit~ 1,0 0.057 1 ug/L J i RL. Re-p~ting Umit , DF - Dilution FaCtO/- ~ Qual. Qualifiers" 7440 Lincoln Way, Garden Grove, CA 92841-1432 ,~ inn TEL: (714) 895-5494 FAX: (714) 894-7501 alscience , nvironmental i_ aboratories, Inc. TriHydro Corporation 8200 Stockdale Hwy., Suite M.10, #329 Bakersfield, CA 933! 1-0000 ANALYTICAL REPORT Date Received: Work Order No; Preparation: Method; 10116/03 03~10-0962 EPA 3520B EPA 808!~8082 Project: Shell Bakersfield Refinery, Bakersfield, CA Page 1 of 2 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID Parameter Result RL MDL D__F Oual Alpha-BHC ND 0.050 0.013 1 ug/L. Gamma-BHC NO 0.050 0,020 1 ug/L Beta-BHC ND 0.050 0.0082 1 ug/L Heptachlor ND 0.050 0.0074 1 ug/L Delta-BHC ND 0.050 0.018 1 ug/L Aldrln ND 0.050 0.010 1 ug/L Heptachlor Epoxide ND 0.050 0.023 1 ug/L Endosulfan I ND 0.050 0.0052 I ug/I. Dieldrin ND 0.050 0.012 1 ug/L 4,4'-DDE ND 0.050 0.012 1 ug/L Endrln ND 0.050 0.012 1 ug/L Endrin Aldehyde ND 0.050 0.0052 1 ug/L 4,4'-DDD ND 0.050 0,012 t ug/L Endosulfan II ND 0.050 0.011 1 ug/I. 4,4'-DDT ND 0.050 0,015 I ug/L Endosulfan Sulfate ND 0.050 0.0079 1 ug/L Chlordane ND 0.50 0,085 1 ug/L Toxaphene ND 2.0 0.3t 1 ug/L Aroclor.1016 ND 0.50 0.077 1 ug/L Aroclor.1221 ND 0,50 0.050 I ug/L Aroclor.1232 ND 0.50 0.050 1 ug/L Aroclor-1242 ND 0,50 0.050 1 ug/L Aroclor-1248 ND 0.50 0.050 I ug/L Aroclor-1254 ND 0.50 0.050 1 ug/L Aroclor-1260 ND 0.50 0.12 I ug/L Aroclor-1262 ND 0.50 0.050 t ug/L_ Surrolqates; REC (%) Control Cluial Llml~ Decach!oroblphenyl 98 50-i 35 2,4,5,6-Tetrachloro-m.Xylene 42 50.135 2 I I RL - Reporting Umit , DF - Dilution FactOr ,' Oual - Qualifiers -- 7440 Lincoln Way, Garden Grove, CA 92841-1432 o TEL:(714)895-5494 * FAX:(714)894-7501 M _al$cience ~n vironmental i- aboratories, Inc. TriHydro Corporation 8~200 Stockdale Hwy,, Suite M-10, #329 Bakersfield, CA 93311-0000 ANALYTICAL REPORT Date Received:~ Work Order No: Preparation; Method: 10/16/03 03-t0-0962 EPA 3520B EPA 8081A/8082 Project: Shell Bakersfield Refinery, Bakersfield, CA Page 2 of 2 Lab S_ ample Date Date ' Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID Paramete~r Result J~ MDL Alpha-_BHC ND 0.050 0.013 Gamma-BHC ND 0.050 0.020 Bete-BHC ND 0.050 0.0082 Heptachlor ND 0.050 0.0574 Delta-BHC ND 0.050 0.018 AJdrin ND 0.050 0.010 Heptachlor Epoxide ND 0.050 0.023 Endosulfan I ND 0.050 0.0052 Dielddn ND 0.050 0.012 4,4'-DDE ND 0.050 0.012 Endrin ND 0.050 0.012 Endrin Aldehyde ND 0,050 0.0052 4,4'-DDD ND 0.050 0.012 Endosulfan II ND 0.050 0.011 4,4'-DDT ND 0.050 0.015 Endosulfan Sulfate ND 0.050 0.0079 Chlordane ND 0,50 0.085 Toxaphene ND 2.0 0.31 Aroclor,1016 ND 0.50 0,077 Aroctor,1221 ND 0.50 0.050 Arodor.1232 ND 0.50 0,050 Arocior-1242 ND 0.50 0.050 Aroclor.1248 ND 0.50 0.050 Aroclor-1254 ND 0.50 0.050 Aroctor.1280 ND 0.50 0.12 Aroclor.1262 ND 0.50 0.050 .S. urzof~ates: REC ~%} Contrql Limits Decach!omblphenyl 95 50-135 2,4,5,6-Telzachloro-m-Xylene 58 50-135 ..D.,E Qu,al Units I ug/L 1 ug/L 1 ug/L 1 ug/L 1 ug/L 1 ug/~ 1 ug/L I ug/L t ug/L ! ug/L I ug/L 1 ug/L 1 ug/L I ug/L I ug/L t ug/L I ug/L 1 ug/l_ t ug/L 1 ug/L 1 ug/L 1 ug/L ! ug/L ! ug/L 1 ug/L 1 ug/L Qual ,~ I RL - Reporting Limit , DF. Dilution Factor , Oual - Qualifiers ~' ' 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895.5494 · FAX: (714) 894-7501 =alscience ANALYTICAl. REPORT ]] nvironmen al . Laboratories, Inc. TriHydro Corporation Date ReCeived: 10/16/03 8200 Stockdale HWy., Suite M-10, #329 Work Order No: 03.10-0962 Bakersfield, CA 9331 !--0000 Preparation: EPA 5030B Method: EPA 8260B Units: ug/L Project: Shell Bakersfield Refinery, Bakersfield, CA Page t of 2 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed Qc Batch ID Parameter Result RL M__~J~ D...[F , Benzene ND 0.50 0.29 1 Bromodlchloromethane ND 1.0 0.33 1 Bromoform ND 1.0 0.87 t Bromomethane ND 2.0 0.90 1 Carbon Tetrachloride ND 0.50 0,40 1 Chlorobenzene ND 1.0 0.19 Chloroethane ND 1.0 0.46 1 2-Chloroethyl Vinyl Ether ND 2.0 0.51 1 Chlorofonm ND 1.0 0.45 1 Chloromethane ND 2.0 0.43 1 Dlbmmochloromethane ND !,0 0.29 1 1,2-Dichlorobenzene ND 1.0 0.29 1 1,3-Dlchlorobenzene ND 1.0 0.27 1 1,4-Dlchlorobenzene ND 1.0 0.28 1 l,l,Dlchloroethane ND 1.0 0.40 1 1,2-Dlchloroethane ND 0.50 0.35 1 SurrogateS: REC (%} Control Limits Dibromofluoromethane 103 84-120 1,4-Bromofluorobenzene 98 84-t 08 Qual Pi~rameter Result RI. MDL OF Quel 1,1-Dichloroethene ND 1.0 0.32 1 t-1,2-Dlchloroethene ND 1.0 0.60 1 !,2-Dichloropropane ND 1.0 0.40 1 Acrolein ND 20 8.7 1 Acrylonilrile ND t0 2.1 ! c-l,3-Dichl0r0propene ND 0.50 0.44 1 t-! ,3-Dlchloropropene ND 0.50 0.30 Ethylbenzene ND -0.50 0.19 ! Methylene Chloride 1.8 5.0 1.7 1 J,B l,l,2,2-Tetmchloroethane ND 1.0 0.19 Tetrachloroethene ND 0.50 0.20 1 Toluene ND 1.0 0.35. l,l,l-Trichloroethane ND 1.0 0.46 1 1 ,1,2-Trichloroethane ND 1.0 0.42 Tn~chloroethene ND 1.0 0.48 ri vinyl Chloride ND 0.50 0,35 1 Surrocmtes: REC ~%~ Control Limits ~lUiaI Toluene,d8 97 91,109 I I RL. Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 FAX: (714)894-7501 , =-alscience vir° nmental Laboratories, Inc. TriHydro corporation- §200 Stockdale Hwy., Suite M-lO, #329 Bakersfield, CA 933t t-0000 Project; Shell Bakersfield Refinery, Bakersfield, CA Lab Sample Client Sample Number Number ANA_LYTICAL REPORT · Date Received: 10/16/03 Work Order No: 03-10-0962 Preparation: EPA 5030B Method: EPA 8260B Units: ug/L Page 2 of 2 Date Date Date Collected Matrix Prepared Analyzed QC Batch ID p.~rametgr IResuR R_.gL .MD.t, Benzene ND 0.50 0.29 B romodich!or°m _ethane ND 1.0 0,33 Brornoform ND 1.0 0.87 Bromomethane ND 2.0 0,90 Carbon Tetrachlortde ND 0,50 0,40 Chlorobenzene ND 1.0 0.19 Chloroethane ND. ,1.0 0.46 2-Chloroethyl Vinyl Ether ND 2,0 0.5t Chloroform ND 1,0 0.45 Chloromethane ND _2,0 0.43 Dibromochloromethane ND 1,0 0,29 1,2-Oichlorobenzene ND 1.0 0,29 1,3-Dlchlorobenzene ND 1,0 0.27 1,4-Dlchlorobe~ene ND 1,0 0._28 1,l-Dichloroethane ND 1.0 0.40 1,2-Dlchloroethane ND 0,50 0.35 Surrogates: REC {%) .Control Limits Dibromofluorome _thane 104 84-120 1,4,Bromofluorobenzene 99 84-108 D__Er 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Qua! parameter Result 1,1-Dich!oroethene ND t-l,2-Dichloroethene ND 1,2-Dichloropmpane ND Acrolein ND Acrylonllflle ND c-1,3-Dichloropropene ND t-1,3-Dlchlompmpene ND Elhylbenzene ND Methylene ChlOride 2,0 1,1,2,2-Tetra~10roethane ND. Tetrachloroethene ND Toluene ND 1,!,l-Trichloroethane ND 1,1,2-Trlch!oroethane ND Tdchloroethene ND Vinyl Chlodde ND Sprro~ates: REC Toluene-d8 95 1,0 0,32 1 1,0 0,60 1 1.0 0.40 1 20 6.7 1 10 2.1 1 0.50 0.44 1 0.5O 0.30 ! 0.50 0.19 1 5.0 1~7 1 J · 1,0 0,19 1 0.50 0.20 1 !,0 0.35' 1 1,0 0.46 1 1.0 0.42 1.0 0.48 1 0.5O 0,35 1 Control Limits 91-109 Oual J I RL - Reporting Umit , DF - Dilution Factor , Qual - ~ua!ifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 TEL: (714) 895-5494 · FAX: (714) 894-7501 nvironmental L aboratorfes, Inc. TriHydro Corporation 8200 Stockdale Hwy., Suite M.IO, #329 Bakersfield, CA 93311-0000 ANALYTICAL REPORT Date Received: Work Order No: Preparation: Method; Units: 10/16/03 03? 10-0962 EPA 5030B EPA 8260B ug/L Page 1 of 2 Project: Shell Bakersfield Refinery, Bakersfield, CA Lab Sample Date Date Date Client Sample Number Number Collected Mabix Prepared Analyzed QC Batch ID Pammet~ Result RL MDL DF: Qua~l P~arameter Result ItL MD_~ Acetone ND 10 3.6 I l,l.Dichloropmpene ND i.0 0.55 Benzene ND 0.50 0.29 1 c-l,3-Dlchloropropene ND 0.50 0.44 Bromobenzene ND 1.0 0,26 1 t-l,3-Dlchloropropene ND 0.50 0,30 Bromochloromethane ND 1.0 0.37 1 Elhylbenzene ND 1.0 0.t9 Bromodlchlommethane ND t.0 0.33 1 2-Hexanone ND 10 2,5 Bmmoform ND 1.0 0.87 t Isopropylbenzene ND !.0 0.17 Bromomelhane . . ND 10 0.90 1 P4SOPmpyltoluene ND 1.0 0.17 2-Butanone ND 10 1.7 1 Methylene Chloride 1.8 · 10,0 1,7 n-Butylbenzene ND 1,0. 0.34 1 4-Methyl-2-Pentanone ND 10 2.6 sec-Butylbenzene ND 1.0 0.11 1 Naphthalene ND 10 0,56 tert-Butylbenzene ND 1.0 0.23 I n-Pmpylbenzene ND 1,0 0,24 Carbon Disulfide ND 10 0.28 1 Slx/reno ND !.0 0.14 Carbon Tetrachloride ND 0.50 0.40 1 l,l,l,2-Tetrachloroethane ND !,0 0.45 Chlombenzene ND 1.0 0.19 I 1,1,2,2-Tetrachloroethane ND 1,0 0,19 Chloroethane ND t.0 . 0.46 I Tetrachloroethene ND 1.0 0.20 Chloroform ND 1.0 0.45 1 Toluene ND '1,0 . 0.35 Chloromethane ND 10 0.43 1 1,2,3-Trlchlorobe nzene ND 1;0 0,40 2-Chlomtoluene ND 1.0 0.67 1 1,2,4-Trichlorobenzene ND t,0 0.28 4-Chlorotoluene ND 1.0 0.16 1 1,1,1-Trlchloroethane ND 1.0 0.46 Dibromochloromethane ND 1.0 0.29 1 1,1,2-Trichloroethane ND 1.0 0.42 1,2-Dlbmmo-3-Chloropropane ND 5,0 2,6 1 Trlchloroethene ND t.0 0.48 1,2-Dibromoethane ND 1.0 0,51 1 Tdchlorofluoromethane ND t0 0,27 Oibromome!hane ND 1.0 0.46 1 1 ,~,3-T~chloropropane ND 5.0 2.0 1,2-Dichlombenzene ND 1.0 0.29 1 1,2,4-Trimethylbenzene ND t .0 0.22 1.3-Dichlombenzene ND 1.0 0.27 1 1 ,B,5-Trimethylbenzene ND 1,0 0,11 1,4:Dichlombenzene ND 1.0 0,28 1 Vinyl Acetate ND 10 3,6 Dichlorodifluoromethane ND 1.0 0.47 t Vinyl Chloride ND 0.50 0,35 1,1-Dichloroethane ND 1.0 0.40 t p/m-Xylene ND t,0 0.17 1,2-Dichloroethdne ND 0.50 0.35 ! o-Xylene ND !.0 0.16 1,1-Dlchloroethene ND 1.0 0.32 1 Methyl-t-Butyl Ether (MTBE) ND 1.0 0.28 c,-l,2-Dichloroethene ND 1.0 0.56 1 Tort-Butyl Alcoho! (TBA) ND 10 4.9 t-l,2-Dlchloroethene ND 1.0 0.60 1 Dllsopropyl Ether (DIPE) ND 2.0 0.27 1,2-Dichlompropane ND 1.0 0.40 1 Ethyl-t-BuM Ether (ETBE) ND 2.0 0.33 1,3-Dichloropropane ND 1.0 0.35 1 Tert-AmyI-Methyl Ether (TAME) ND 2.0 0.32 2,2-Dichlompropane ND 1.0 0.39 1 Ethanol ND 100 52 Surrogates: REC (%) Control Limits Qupl Surrogates: REC (%) Conlml Llml~ Dibromofluoromethane 103 84,120 Toluene-d8 97 9t.109 1,4-Bromofluorobenzene 98 84.108 D_EF t 1 1 i 1 1 1 1 1 1 1 t t 1 1 t 1 1 t 1 1 1 1 1 1 1 1 1 1 1 Ou~! Clu~l · ~ i RL. Reporling Limit ; pF- Dilutio~ Factor , Qual. Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 · FAX: (714) 894-750t ~=alscience r=nvironmental ' Laboratories, Inc, TriHydm CorporatiOn 8200 Sto_ckdale Hwy,, Suite M-10, #329 Bakersfield, CA 933t 1-0000 Project: Shell Bakersfield Refinery, Bakersfield, CA Lab Sample ANALYTICAL REPORT Date Received: -10/16/03 Work Order No: 03-10-0962 Preparation: EPA 5030B Method: EPA 8260B Units: ug/L Page _2 of 2 Date Date Date Client Sample Number . Number Collected Matrix Prepared Analyzed QC Bat_ch ID parameter ~ R_J= MDL Acetone ND 10 3.6 Benzene ND 0.50 0.29 Bromobenzene ND 1.0 0.26 Bromochlommethane ND 1,0 0.37 Bromedlchloromethane ND 1.0 0.33 Bromoform ND 1.0 0.87. Bmmomethane ND 10 0.90 2.Butanone ND 10 1.7 n~Butylben~ene ND 1.0 0.34 sec-Butylbenzene ND 1.0 0.t 1 tert-Bulylbenzene ND 1.0 0.23 Carbon Disulfide ND 10 0.28 Carbon'Tetrachlortde ND 0.50 0.40 Chlorobenzene ND 1.0 0.19 Chloroethane ND 1.0 0.46 Chloroform .ND 1.0 0.45 Chloromethane ND 10 0.43 2-Chlorotoluene ND 1.0 0.67 4,Chloroto!uene ND 1.0 0.16 Dibromochloromethane N_D 1.0 0.29 1,2-Dibmmo-3-Chloropropane ND 5.0 2.6 1,2-Dlbromoethane t.0 0.51 Dibromomethane 1.0 0.46 1,2-Dlchlorobenzene 1.0 0.29 t,3-Dichlorobenzene 1.0 0.27 1,4-Dlchlorobenzene 1.0 0.28 Dlchlorodlfluoromethane 1.0 0.47 1,1-Dlchloroethane t .0 0.40 1,2-Dichloroethane 0.50 0.35 1,1-_Dich!oroethene 1.0 0.32 c-1,2-Dich!oroethene 1.0 0.56 t-1,2-Dichloroethene 1.0 0.60 1,2-Dichlompropane 1.0 0.40 1,3-DJchloropropane 1.0 0.35 2,2-Dichloropropane 1.0 0.39 DF Ou, al P~rame. ter I 1,1-Dlch!ompmpene I c-I ,3-Dichloropropene ~ I t-l,3-Dichlompropene 1 _Ethy!benzene I 2-Hexanone 1 t t 1 1 1 1 1 1 1 1 1 Surro;lates: Dibromofluoromethane 1,4,Bromofluorobenzene t 1 1 1 ND 1 ND 1 ND · 1 ND 1 ND 1 ND 1 ND 1 ND 1 ND 1 ND 1 ND 1 ND 1 ND 1 ND 1 REC (%) Control Limits Oual 104 84-120 99 84.108 Isi)propylben_zene p-jsopmpyltoluene Methylene Chloride 4*Methyl-2-Pentanone Naphthalene n-Propylbenzene Styrene 1.,i ,1,2-Tetrachloroethane 1,! ,2,2-TetrachlorOethane Tetrachloroethene Toluene 1,2,3-Trichlorobenzene 1,2,4-Trichlorobenzene 1~t,1 -Trlchloroelhane t ,1,2-Trichloroethane Trichloroethene Tdchlorofluoromethane 1,2,3-Trichloropropa ne 1,2,4-Trimethylbenzene ! ,3,5-Trimethylbenzene Viityl Acetate Vinyl Chloride plm-Xylene o-Xylene M~. thyl-t-Butyl Ether (MTBE) ND Tdrt-Butyl Alcohol (TBA) ND Diisopropyl Ether (DIPE) ND Ethyl-t-Butyl Ether (ETBE) ND Terl-Amyl-Methyl Ether (TAME) ND · Ethanol ND Sqrro~ales: Toluene-d8 Result R_.I= M,.OL ~ Qual ND 1.0 0.55 1 ND 0.50 0.44 t ND 0.50 0.30 1 ND 1.0 0.t9 1 ND t0 2.5 1 ND 1,0 0.17 1 ND t.0 0.17 1 2.0 10.0 t.7 I J · ND 10 2.6 1' ND 10 0.56 1 ND t.0 0.24 1 ND 1.0 0.t4 I1 ND 1.0 0.45 1 ND 1,0 0.19 1 ND 1.0 0.20 11 ND 1.0 0.35 1 ND 1.0 0.40 1 ND 1.0 0,28 ! ND 1.0 0.46 1 ND 1.0 0,42 1 ND 1.0 0.48 1 ND 10 0.27 t ND 5.0 2.0 1 ND 1.0 0.22 1 ND 1.0' 0.tl 1 ND 10 3.6 1 ND 0,50 0.35 1 ND 1.0 0.t7 1 ND 1,0 0.16 1 1.0 '0.28 1 10 4,9 1 2.0 0.27 1 2.0 0.33 1 2.0 0.32 1 100 52 1 REC (%) Control Limits Oual 95 91-109 I RL- Reporting Limit , ' DF: Di/~t~n- F~Ctor ~ ' --Qua~ --Qualifiers--' ~ 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 · FAX: (714) 894-7501 E alscience nvironmental aboratOries, Inc. TdHYdro Corporation 8200 Stockdale Hwy,, Suite M-10, #$29 Bakersfield, CA 93311.0000 Project: Shell Bakersfield Refinery, Bakersfield, CA ANALYTICAL REPORT ~ate Received: 10/16/03 Work Order No: 03-10-0962 Preparation: EPA 3520B Method: EPA 8270C Units: ug/L Page 1 of 2 Lab Sample i Date . Date Date Client~ Sampl~ 2.Number~ _~- ,~., ~ ~ ~ Number ~ ~,~ | Collected Malrix Prepared:~ Analyzed QC Batch ID Parameter Result RL MD, L DF: Qual P .~rameter Result RI_ MDL N-Nitrosodimethylamine ND 10 0.55 t 2,~t-D n trotoluene ND 5.0 0.50 1 Phenol ND 5.0 0.58 I 2,~-Dinltroteluene ND 5.0 0,56 ! Bis(2-Chloroethyl) Ether ND 10 0.51 1 D,i~thyl Phthalate ND 5.0 0.70 1 2-Ch!orophenol ND 5.0 0.50 1 4~hlo~ophenyI-Phenyl Ether ND 5.0 0.61 1,3-Dichlorobenzene ND 5.0 0.58 I F!~orene ND 5.0 0,69 1 1,4-Dichlorobenzene ND 5.0 0.57 1 4,6-Dinitro-2-Methylphenol ND 25 1.7 1 1,2-DIchlorobenzene ND 5.0 0.58 I N-~Nitrosodiphenylamlne ND 5,0 0.68 1 Bis(2-Chloroisopropyl) Ether ND 5.0 0.76 1 4-~romophenyI-Phenyl Ether ND 5,0 0.61 1 N-Nitroso-dl-n-pmpyla m!ne ND 5.0 0.65 I H~xachlorobenzene ND 5,0 0.61 1 Hexachloroethane ND 5.0 0.49 1 P~ntachlorophenol ND 5.0 0.37 1 Nitrobenzene ND 25 0.67 I Plienanthrene ND 5,0 0.75 t Isophorone ND 5.0 0.62 1 A~,thracene ND 5,0 0,75. 1 2-Nitrophenol ND 10 0.59 I Di!n-Butyl Phthalate ND 5.0 0.73 1 2,4-Dimethylphenol ND 5.0 0.60 I Fl~oranthene ND 5.0 0.76 1 Bis(2-Chloroethoxy) Methane ND 10 0.58 t B~nzldlne ND 50 0.31 t 2,4-Dlchloropheno! ND 5.0 0.53 1 I:~','ene ND 5.0 0.68 t 1,2,4-Tdchlorobenzene ND 5.0 0.65 1 Buttyl Benzyl Phthalate ND 5.0 0.52 1 1,2-Oiphenylhydrazine ND 2.0 0.19 1 3,~'-Dlchlombenzldlne ND 5.0 0.63 1 Naphthalene ND 5.0 0.72 I B~nzo (a) Anthracene ND 5.0 0.50 Hexachloro-l,3-Butadiene ND 5.0 0.59 I Bl~(2-Ethylhexyl) Phthalate ND 5.0 0.51 4-Chloro-3-Methylphenol ND 5.0 0.58 I C~rysene ND 5.0 0,64 1 Hexachlorocyclopentadiene ND 15 0.22 1 Dl~.Octyl Phthalate ND 5.0 0,50 1 2,4,6-Trichlorophenol ND 5.0 0.61 1 Bdnzo (k) Fluoranthene ND 5.0 0.85 t 2-Ch!oronaphthalene ND 5.0 0.65 1 Benzo (b) Fluoranthene ND 5.0 0.62 1 Dimethyl Phthalate ND 5.0 0.65 I Belnzo (a) Pyrene ND 5.0 0.44 1 Acenaphthylene ND 5.0 0.72 1 Beinzo (g,h,i) Perylene ND 5.0 0.36 1 Acenaphthene ND 5.0 0.70 1 In~leno (1,2,3-c,d) Pyrene ND 5.0 0.42 1 2,4-Dinltmphen ,ol ND 25 1.3 I Di~enz (a,h) Anthracene ND 5.0 0.41 t 4-Nitmphenol ND 5.0 0.43 1 Surrogates: REC (%1 Control Limits Qual S~lrro~ates: REC ¢%) Control Llmi~ (~ual 2-Fluorophenol 51 15.138 P ,h~nol'd6 53 17.t41 Nltrobenzene-d5 56 56-123 2dFluorobiphenyl 45 45-120 2,4,6-Tribrom0phenol 52 32-143 P-Terphenyl-d14 81 46-133 ~ua~l .~ I - RL - R~ing Limit , DF ? Dilution Factor ~ Qual - Qualifiem ' 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 · FAX: (714) 894-7501 I~E_nvironmental ~ aboratories, Inc. ~'dHydro Corporation' -- 8200 Stockdale Hwy,, Suite M-10, #329 Bakersfield, CA 93311-0000 ANALYTICAL REPORT Project; Shell Bakersfield Refinery, Bakersfield, CA ~ate Received: - 10/16/03 · Work Order No: 03-10~0962 Preparation: EPA 3520B Method: EPA 8270C Units: ug/L Page 2 of 2 Lab Sample : Date 'Date Date ' · Client Sample Number Number i Collected Matrix · prepared Analyzed OC Batch ID Parameter N-Nib'osodimethylamlne Phenol B!s(2-Chloroethyl) Ether 2-Chlorophenol 1 ~3-Dichlorobenzene 1,4-Dlchlorobenzene 1,2-Dlchlorobenzene Bis(2.ChlOrOjsopropy!) Ether N-Nltroso-dl-n-propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4.Dtmethylphenol Bis(2-Chloroethoxy) Methane 2,4-Dichlorophenol 1,2,4-Trtchlorobenzene 1,2-Diphenylhydrazine Naphthalene Hexachloro-1,3-Butadiene 4,Chloro-3-Methy!phenol Hexachlorocyclopentadiene 2,4,6-Trtchlomphenol 2-Chloronaphthalene Dlmethyl Phthalate Acenaphthylene Acenaphthene 2,4.Dinltrophenol 4-Nitrophenol Surroaates: 2-Fluorophenol Nitrobenzene--cl5 2,4,6-Tribromophenol Result RL MDL ND 10 0,55 ND 5,0 O,58 ND 10 0.51 ND 5.0 0.50 ND 5,0 0.58 ND 5.0 0.57 ND 5.0 0.50 ND 5.O 0.76 ND . 5.O 0.65 ND 5.0 0,49 ND 25 0,67 ND 5.0 0.62 ND 10 0.59 ND 5.0 0.60 ND 10 0.58 ND 5.0 0,53 ND 5.0 0.65 ND 2.0 0.19 ND 5.0 0.72 ND 5.0 0.59 ND 5.0 0.58 . ND 15 0.22 ND _5.0 0.61 ND 5.0 0.65 ND 5.0 0.65 ND 5.0 0.72 ND 5.0 0.70 ND 25. t.3 ND 5.0 0.43 RE~ (%) Control Limits 84 15-138 90 56-123 68 32-143 DF Oual 1 t 1 t 1 1 1 1 1. ! 1 1 t 1 1 1 1 1. 1 1 1 1 1 1 1 1 1 Qua! P~rameter Result RI. MOL, D...~F 2,~t-Dinitrotoluene ND 5.0 0.50 2,B-Dinitrotoluene ND 5.0 0,56 Diethyl Phthalate ND 5.0 0.70 4 ~ .-~loropheny!-Phenyl Ether ND 5.0 0.61 Flporene ND 5,0 0.69 4,~DInltro-2-Methylpheno! ND 25 1.7 t N4,Nitrosodiphenylamine ND 5.0 0.68 1 4~mmophepyI-Phenyl Ether ND 5.0 0.6t 1 Hipxachlorobenzene ND 5.0 0.61 1 PSntachlomphenol ND 5,0 0.37 1 Pl~enanthrene ND 5,0 0,75 1 Aftthracene ND 5.0 0.75 i 1 D~-n-Butyl Phthalate ND 5,0 0,73 1 nOranthene ND 5.0 0,76 1 zidine i ND 50 0.31 'P~lm ND 5.0 0.68 1 Benzyl Phthalate ND 5.0 0.52 1 3,~'-Dichlorobenzidine ND 5.0 0.63 1 Be~nzo (a) Anthracene ND 5,0 0.56 1 Bi{s(2-Ethylhexyl) Phthalate ND 5,0 0.5t 1 Cr~rysene . ND 5.0 0.64 Dj,Ln-Octyl Phthalate ND 5.0 0,50 t B{m_zo (k) Fluoranthene ND 5.0 0.85 1 ND 5,0 0.62 t ND 5.0 0.44 1 ND 5.0 0.36 1 ND 5.0 0.42 t ND 5.0 0,4t I a~ B~ B~ In~ Di St Pt 2- 13.' nzo (b) Fluoranthene ,nzo (a) Pyrene ,nzo (g,h,i) Perylene leno (1,2,3-c,d) Pyrene )enz (a,h) Anthracene rro~ates: REC (%) C9. ntrol Limits enol-d6 84 17-141 :luoroblphenyl 77 45-120 r'erphenyl-d14 94 46-133 Qual Qual 1 1 t 1 1 .~ ! RL - Reporting Umit , DF - Dilution Factor , Oual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92l~41-1432 · TEL: (714) 895-5494 · FAX: (714) 894.7501 ~ alscience ~nvironmental ~ aboratories, Inc. Quality Contro -_ Duplicate TriHydro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311-0000 Method: Project: Shell Bakersfield Refinery, Bakersfield, CA Date Received: 10/16/03 Work Order No: 03-10-0962 Preparation: N/A EPA 130.2_ Date Date Duplicate Batch Quality Control Sample ID Malflx Instrument Prepared: Analyzed: Number Parameter Samole Conc I~UP Conc ~p. RPD CL C[uallfiers Hardness, Total 2500 'i 240{~ 2 0-25 7440 Lincoln Way, Garden Grove, CA 928~41-1432 * TEL: (714) 895-5494 · FAX: (714) 894-7501 ~---_nvironmental i~ aboratories, Inc. Quality Control TdHydm Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311-0000 Project: Shell Bakersfield Refinery, Bakersfield, CA Quality Control Sample ID Matrix Parameter Samole Conc pH 6.57 . Duplicate Date Re .ceived: 10/16/03 Work Order NO: 03.10.0962 Preparation: N/A Method: EPA 150.t Date Date Duplicate Batch Instrument Prepared: Analyzed: Number UP Conc RPD RPD C~ 6.57 0 0-25 Qualifiers 7440 Lincoln Way, Garden Grove, CA 92!1-1432 · TEL: (714) 895-5494 - · FAX: (714) 894-7501 ~_nvironmental Quality Control - Spike/Spike Duplicate ~-- aboratories, Inc. TriHydm Corporation Date Received: 10/16/03 8200 Stockdale Hwy,, Suite M.10, #3~29 Work Order No: 03-10-0962 Bakersfield, CA 93311-0000 Preparation: Total Digestion Method: EPA 6020 proiect: Shell Bakersfield Refine~_~akersfield~ CA Date Data MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number paramet~ MS %REC MS ) %REC %REC,~I- RPD R~PD CL ,~lualiflers Antimony 165 157 80-120 5 0-20 3 Arsenic 98 97 80-120 _2 0-20 Beryllium 100 98 80-120 1 0-20 Cadmium 97 95 80-120 2 0-20 Chromium (Total) 108 104 80-120 3 0-20 Copper 95 91 80-120 4 0-20 Lead 98 93 80-120 5 0-20 Nickel 95 92 80-120 3 0-20 Se enlum 81 85 80-120 5 0-20 Silver 91 88 80-120 3 0-20 Thallium 90 86 80-120 5 0-20 Zinc 74 80 80-120 6 0-20 3 Lincoln Way, Garden Grove, CA92i1-1432 · TEL: (714) 895-5494~ .'.. FAX: (714) 894-7501 ~.~=alscience ~ nvironmental ~.~ aboratories, Inc. TriHydro Corporation 8200 Stockdale. Hwy.,. Suite M-10, #329 Bakersfield, CA 933t 1-0000 Quality Control Project: Shell Bakersfield Refinery~ Bakersfield~ CA Quality Control Sample ID Matrix - Spike/Spike Duplicate Date Received: Work Order No: Preparation: Method: 10!! 6/03 03-10-096_2 EPA 7470A Total ,_EPA 7470A 7440 Lincoln Way, Garden Grove, CA 92~41-1 432 - TEL: (714) 895.5494 - FAX: (714) 894-7501 ?_a~ra~m e~t~ MS %REC MS 114 71-134 1 0-14 ) %REC .%REC CL RPD RPD CL Qualifiers Date Date MSIMSD Batch Instrument Prepared Analyzed Number nvironmental aboratories, Inc. Quality Control - TriHydro Corporation 8200 Stockdale Hwy., Suite M.10, #329 Bakersfield, CA 93311-0000 Project: Shell Bakersfield Refinery, Bakersfield, CA 'DS I PDSD Quality Control Sample ID Matrix - ~ ~ ~ ~ =-~ ~.:, =~.~ .... ~:.;~.::,,.:~, ~;~ii Parameter PDS %REC Date Received: Work Order No: Preparation: Method: Date Prepared 7440 Lincoln Way, Garden Grove, CA 9211-1432 · Antimony 123 Amenio 91 Beryllium 93 Cadmium 92 Chromium (Total) 99 Copper 93 Lead 92 N!cke_! 89 _Selenium 79 Silver 93 Thallium 85 Zinc 1 ~15 10/16/03 03-10-096~2 Total Digestion EPA 6020 Date .Analyzed PDS/PDSD Batch Nun'd3er TEL: (714) 895-5494 · FAX: (714) 894-7501 124 75-125' 1 0-20 92 75-125 0 0-20 94 75-125 2 0-20 94 75-125 2 O-20 100 75-125 1 0-20 95 75-125 2 0-20 95 75-125 4 0-20 92 75-125 3 0-20 8! 75-125 2 0-20 94 75-125 2 0-20 88 75-125 4 0-20 119 75-125 3 0-20 D %REC %REC CL RPD RPD Cl, Oual~em Insb'ument ~ alscience EE_nvironmentaI Quality Control - L; ~1~ aboratOries, Inc. TriHydro Corporation 8200 Stockda!e Hwy,, Suite M-10, #329 Bakersfield, CA 93311~0000 Project: Shell Bakersfield Refinery, Bakersfield, CA Quality Control Sample ID Matrix Instrument Parameter Conc Added Chromium, Hexavalent 10 ~boratory Control Sample Date Received: t 0/16/03 Work Order No: 03-10-0962 Preparation: N/A Method: · EPA 7199 Date Analyzed Lab File ID LCS Batch Number Conc Recovered %Rec ~Rec CL Qualifiers 9.7 96 80-t20 7440 Lincoln Way, Garden Grove, CA 92~ 41-1432 * TEL: (714) 895-5494 · FAX: (71~t) 894-7501 ~l~,=alscience IE-_nvironmental ~m abomtories, Inc. Quality Control TriHYdro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311-0000 project: Shell Bakersfield Refineryr Bakersfield~ CA Quality Control Sample ID Matrix !~,~~~ ~A ~ ~:~ ~ ~;~.~~¥_~.~ Parameter MS %REC MSI Chromium, Hexavalent 7440 Lincoln Way, Garden Grove, CA 921 · Spike/Spike Duplicate Date Received: Work Order No: Preparation: Method: 10/16/03 03-10-0962 N/A EPA 7199 Date Date MS/MSD Batch Instrument Prepared Analyzed Number ) %REC %REC CL RPD RPD CL Qualifiers 98 70-130 1 0-25 41-1432 * TEL:(714)895-5494 * FAX;(714)894-7501 ~alscience ~_nvir°nmental ~=~ aboratories, Inc. Quality Control TdHydro Corporation 8200 Stockdale Hwy,, Suite M~10, #329 Bakersfield, CA 93311-0000 Project: Shell Bakersfield Refinery, Bakersfield, CA Quality Control Sample ID Matrix Instrument Parameter Gamma-BHC Heptachlor Endosulfan I Dieldrin Endrin 4,4'.DDT Ar0cloM .260 LCS %REC LCS 1t8 1~ 124 111 115 1~ - LCS/LCS Duplica.te Date Received: t0/16/03 Work Order No: 03-10-0962 Preparation: EPA 35205 Method: E_PA 8081A/8082 Date Date LCS/LCSD Batch Prepared Analyzed Number ) %REC %REC CL 9 50`135 0 50-135 2 50-135 50-135 50-135 50-135 ~ 50-135' 1 12 1 4 4 4 RInD Ck _Qua!iflel~ 0-25 0.25 0-25 O-25 0-25 0-25 7440 Lincoln Way, Garden Grove, CA 92141-1432 · TEL: (714) 895-5,==194 - FAX: (714) 894-750t ~=r alscience J~-~nVironmental i__ aboratOrfes, Inc. Quality Control TriHydro Corporation 8200 Stockdale HwY,, Suite M-10, #329 Bakersfield, CA 93311-0000 Project: Shell Bakersfield Refinery, Bakersfield, CA Quality Control Sample ID Matrix Instrument Parameter Antlmo!!y Arsen!~ Beryllium Cadmium Chromium (Total) copper Nickel Selenium Silver Thallium Zinc LCS %REC i14 95 98 99 103 102 97 104 90 LCS - LCSILCS DupliCate Date Received: 10/16/03 Work Order No: 03-10-0962 Preparation: Total Digestion Method: EPA 6020 Date Date LCS/LCSD Batch Prepared Analyzed Number :3 %REC %REC CL RPp 16 80-120 2 ~3 80-120 1 18 80-120 0 ~9 80-120 0 :)1 80-120 1 ~ 80-120 1 32 80-120 ~6 80-120 1 [3 S0'120 1 33 80-120 0 8 80-120 0 80-120 2 ~pDCL ~20 ~20 0-20 0-20 ~20 ~0 Qualifiers 7440 Lincoln Way,. Garden. Grove, CA 92141-1432 · TEL: (714) 895-5494 FAX: (714) 894.7501 ~..~_a_lscience I~-_nvironmental i.~ aboratorfes, Inc. Quality Control - L~ ~boratory Control Sample TriHydro Corporation 8200 Stockdale Hwy,, Suite, M-10, #329 Bakersfield, CA 93311--0000 Project: Shell Bakersfield Refinery, Bakersfield, CA Parameter Conc Added Mercury 0.0100 * Date Received: Work Order No: Preparation: Method: 10/16/03 03-10-0982 EPA 7470A Total E_PA 7470A 7440 Lincoln Way, Gard_en Grove, CA 92141-1 432 · TEL: (714) 895-5494 · FAX.- (714) 894-7501 Date Analyzed Lab File ID LCS Batch Number .C?_n~ Recovered %Rec ~ Oual~ers 0.01!2 112 90-122 -alscience nvironmental aboratorfes, Inc. TdHydro Corporation 8200 Stockdale Hwy,, Suite M-10, #329 Bakersfield, CA 93311-0000 Project: Shell Bakersfield Refinery, Bakersfield, CA Quality Control Sample ID Matrix InstTument Quality Contro!. LCSILCS Duplicate Date Received: Work Order No: Preparation: Method: Date Prepared LC.~ Parameter LCS "/~ REC Benzene 89 Ca~oon Tetrachlodde 88 Chlorobenzene 102 1,2-Dlchlombenzene 101 1,1-Dichloroethene 88 Toluene 92 Trichloroethene 91 Vinyl Chloride 80 Methyl-t-Butyl Ether (MTBE) 94 Ted-Butyl Alcohol (TBA) 83 Dlisopmpyl Ether (DIPE) 93 Ethyl-t-Butyl Ether (ETBE) 91 Tert-AmyI-Methyl Ether ('FAME) 85 Ethanol 94 7440 Lincoln Way, Garden Grove, CA 92~ 10/16/03 03--10-0962 EPA 5030B _EPA 8_26OB Date LCSILCSD Batch Analyzed Number :) %REC %REC CL RpD RPD 2 87-117 3 0-5 7 77-137 1 0-9 )1 89-113 I 0-5 )2 90-114 I 0-8 ,9 81-129 1 0-15 4 88-118 3 0-71 4 67-121 4 0-2t 9 71-131 t 0-34 ,5 6~125 I 0-49 6 38-140 3 0-98 ,5 77-1 t9 t 0-53 2 73-121 2 0-31 8 71.119 4 0-33 ~ 54.132 4 0-55. Qualifiers 41-1432 · TEL: (714) 895-5494 · FAX: (714) 894-7501 m=-alscience nvironmental' aboratories, Inc. Quality Control TriHydro Corporation _8200 Stockdale Hwy., Suite M-10, #329 _Bakersfield, CA 93311-0000 Project: Shell Bakersfield Refineryr Bakersfield~ CA Quality Control sample ID Matrix Parameter MS %REC MS Benzene 93 Carbon Tetmchloflde 87 Chlorobenzene 104 1,2-Dichlorobenzene 102 1.1-Dichloroethene 89 Toluene 96 TriChloroethene 95 Vinyl Chloride 88 Methyl-t-Butyl Ether (MTBE) 98 TeA-Butyl Alcohol (TBA) 93 Dllsopropyl Ether (DIPE) 96 Ethyl-t-Butyl Ether (ETBE) 92 Tert-AmyI-Methyl Ether (TAME) 90 Ethanol 106 - Spike/Spike Duplicate Date Received: 10/16/03 Work Order No: 03-10-0962 Preparation: EPA 5030B Method: ~ EPA 8260B · eDate Date MS/MSD Batch Instrument Prepared Analyzed Number ~ %REC %REC CL RPD RPD C~, Qualifiem_ 93 84-120 1 0-13 88 72-132 1 0-t5 102 87.117 2 0-12 103 86-116 t 0-13 91 77-! 37 3 0-15 95 85-121 1 0-15 93 66-120 3 0-13 88' 68-140 0 0-t6 97 68-128 0 0-18 92 30-156 t 0-26 97 75-! 23 1 6-14 93 66-132 1 0-33 89 59-131 2 0-47 102 20-176 3 0-42 · TEL: (714) 895-5494 · FAX: (714) 894-7501 ~=-alscience E~_nvironmental ~im aboratories, Inc. Quality Control - LCSILCS Duplicate TriHydro Corporation 8200 Stockdale Hwy,, Suite M-10, #329 Bakersfield, CA 93311-0000 Project: Shell Bakersfield Refinery, Bakersfield, CA Quality Control Sample !O Matrix Instrument parameter LCS %REC Phenol 99 _2-Chlorophenol . 93 1,4-Dlchlombenzene 81 N-Nib'oso-di-n-pmpyla mine 98 1,2,4-Trichlorob~_ nzene 82 4-Chlor°'3-Methylphenol 103 Acenaphthene 94 4-Nllrophenol 96 2,4-Dinitrotoluene 92 Pentachlorophenol 75 Pyrene 95 Date Received: Work Order No: Preparation: Method: Date Date Prepared Analyzed ,%REC Cl- RPD 12-151 15 45-t35 t4 36-118 8 52-128 11 42-120 9 20-150 10 51-137 10 20-150 14 25-143 t3 20,150 14 46-135 10 10/16/03 03-10-0962 EPA 3520B EPA 8270C _LCS/LCSD Batch Number RPD CL 0-23 0-18 0-26 0-13 0-21 0-40 0-11 0-40 0-36 O-4.0 7440 Lincoln Way, Garden Grove, 432 · TEL: (714) 895-5494 · FAX: (714) 894-7501 ~.alscience GLOSSARY OF TE~Ms AND QUALIFIERS vironmenta! ~ aboratories, Inc. Work Order Number: 03-10-0962 Qualifier Definition B J. Surrogate spike compo~ The associated method and, therefore, the samI Spike or Spike Duplicati interference. The asso( therefore, the sample d; Analyte was present in 1 Analyte was detected at Reported value is estim; Not detected at indicate ND nd was out of control dUe to matrix interference. 3lank surrogate spike compound was in control .le data was reported without further clarification, compound was out of control due to matrix iated LCS and/or LCSD was in control and, ta was reported without further clarification. le associated method blank. a concentration below the reporting limit. ~ted. I reporting limit, 7440 Lincoln Way, Garden Grove, CA 92 41-1432 · TEL: (714) 895-5494 · FAX:' (714) 894-750~ WO K O gEa #: Cooler_ SAMPLE RECE-'IPT FORM * ' I ,o/, TEMPERATURE - SAMPLES RECEIVED BY: CALSClENCE COURIER: Chilled, cooler with temperature blank provided. ~ Chilled, cooler without temperature blank. Chilled and placed in cooler with wet ice. . , Ambient and placed in cooler with wet ice. ~ Ambient temperature, °C Temperature blank, aL CUSTODY SE/~L INTACTi Sample(s); ~ Cooler:. , No (Not Intact) SAMPLE CONDITION: LABORATORY (Other than Calscience Courier)=~ __ °C Temperature blank, .~ o C IR thermometer. Ambient temperature. COMMENTS: Yes No N/A ~ '. Chain-Of-CustodY document(s) received with samples ......................... __ Sample container label(s) consistent with custody papers ............. ' Sample container(s)intact and good condition ................................... ~'.-~ii iiii -~- '- -' ...... Correct containers for analyses requested ..................................... ,.,, ....... Proper preservation noted, on sample label(s) ......................... VOA vial(s) free of headspace ......................................................... Tedlar bag(s) free of condensation ................................................. __ Not Applicable (N/A): ~' initial:_, ~-- ,~ Initial: Initial: CALSClENCE ENVIRONMENTAL :Shell Oil ,Company Chain Of =Custody Record u~ao.~TomEs, l.c. (714) 8955494 (714) 894-7501 fax ~ of ~iJU~UNG cme, : ~ .al~ (8~Emm~lCit~ [rihydrO Corporation -. T~OUND ~ME'~BUSfl~ESS DAYS): · (~]_[0~AYSE] ~OU~SiI'-I ~e~x.~s ii-) ~ou~s [] [~ss~a~s REQUESTED ANALYSIS GC/MS MTBE CONFIRMATION; HIGHEST__ HIGHEST per BOEING Repo~ J flails Metals, All Organic~ ~ - ~ .j ano DISTRIBUTION: White wi~ rmal ~,Gme/l tO File, YM]DW and ~ ~ Clien[ 10/16/00 ReVi~l~ ~...alscience ~ff-~n vironmenta! i- aboratories, Inc. October 31,2003 Linda Blake TriHyd ro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311-0000 Subject: CalscienceWork Order No.: Client Reference: 03-10-0963 Shell Bakersfield Refinery, Bakersfield, CA Dear Client; Enclosed is an analytical report for the above-referenced project. The samples included in this report were received 10/16/2003 and analyzed in accordance with the attached chain-of-custody. Unless otherwise noted, all analytical testing Was accomplished in accordance with the guidelines established in our Quality Assurance Program Manual, applicable standard operating prOcedures, and other related documentation. The original report of any subcontracted analysis is provided herein, and follows the standard Calscience data package. The results in this analytical rePOrt are limited to the samples tested and any reproduction thereof must be made in its entirety, If you have any questions regarding this report, please do not hesitate to contact the undersigned. Sincerely, ./~ . Project Manager Michael-~J."'criSoStomo Quality ,~ssurance Manager 7440 Lincoln Way, Garden Grove,.CA 92841-1432 · TEL: (714) 895-5494 · FAX: (714) 894-7501 alscience nvironmental aboratories, Inc. TriHydro Corporation· 8200 Stockdale Hwy,, Suite M-10, #329 Bakersfield, CA 93311-0000 ANALYTICAL REPORT Date Received: 10/16/0;~ Work Order No: 03-10-0963 Preparation: N/A Method: EPA 130.2 Project: Shell Bakersfield Refinery, Bakersfield, CA Page I of 1 Lab Sample Date . Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID parameter Re§uIt RI. MDL D....~F Qua! Units Hardness, Total 150 2 0.99 1 mg/L Parameter Result RL MDL D._.~F Qual Units Hardness, Total ND 2.0 0.99 I mg/L · ~ I RL- Reporting Limit' , DF - Dilution Factor , Qual? Qualitiers ....... 7440 Lincoln Way, Garden Grove, CA 92841-1432 - TEL: (714) 895-5494 · FAX: (714) 894-7501 ~alscience ~nvironmental Laboratories, Inc. ANALYTICAL REPORT TriHYdro-~0-rPoration Date Received: 10/16/03 8200 Stockdale Hwy. Suite M-10, #329 Work Order No: 03-10-0963 Bakersfield. CA 9331 !-0000 Preparation: N/A Method: _EPA 150.1 Project: Shell Bakersfield Refinery, Bakersfield, CA Page 1 of 1 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID Parameter Result R_L M_D._L OF CtPpl I,/nll~ pH 7.26 0.0t 0.01 1 pH units port,ng Umil . DF- DilutiOn F~ct~3i' , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841.1432 · TEL:(714) 895-5494 · FAX: (714) 894-7501 ~.=-alscience ~pvironmental i__ aboratories, Inc. TriHydro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311-0000 ANALY'rlCAL REPORT Date Received: 10/16/03 Work Order No: 03-10-0963 Preparation: Total Digestion Method: EPA 6020 Project: Shell Bakersfield Refinery, Bakersfield, CA Page t of 1 Lab Sample Date Date Date Client Sample Number Number Collected Malrlx Prepared Analyzed QC Batch ID parameter Result RL MDL DF' Oual · Units Antimony 0.00_028_5 0,00050 0,0000790 1 J mg/L Arsenic ND 0,00100 0.000169 1 mg/L Beryllium ND 0.00020 0.0000553 t rog/!, Cadmium 0.0000156 0.00020 0.0000151 I J Chromlur~ (Total) 0.000812 0.00050 0.0000184 I mg/L Copper 0,000894 0,00050 0.0000181 I mg/L Lead 0.000270 0.00050 0.0000130 1 J mg/L Nickel 0.00154 0.00050 0.0000234 1 rng/L Selenium ND 0.00100 0,000783 1 mg/L Silver 0.0000551 0.00020 0.0000153 I J mg/I- Thallium ND 0.00050 0,0000153 1 mg/I. Zinc 0.0295 0.0010 0,000341 I mg/I. P~rameter Antimony Arsenic _Beryllium Cadmium ChromiUm ('rotal) Copper Lead Nickel Selenium Silver Thallium Zinc Result RL MDt~ DF Qual Units 0.000692 0.00050 0.0000790 t J mg/L 0.000375 0.00100 0.000169 1 J mg/L ND 0.00020 0.0000553 1 mg/L ND 0.00020 0.0000151 I mg/L 0,0000234 ' 0.00050 0.0000184 I J mg/L ND 0.00050 0.0000181 I mg/L ND 0.00056 0.0000130 1 mg/L 0.0000590 0.00050 0.0000234 1 J mg/L 0.00121 0,00100 0.000783 1 mg/L ND 0.00020 0.0000183 1 mg/L ND 0.00050 0.0000153 1 mg/L ND 0.00100 0.00034t I mg/L · - . - . rting Umit , DF ? Dilution Factor , -- Qual - Qualifiers epq. 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TE_L; (714) 895-5494 FAX: (714) 894-7501 Iscience ~nvironmental ~-- aboratorfes, Inc. TriHydro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311-0000 ANALYTICAL REPORT Date ReceNed: Work Order No: Preparation: Method: 10/16/O3 03.10-0963 EPA 7470A Total EPA 7470A Project: Shell Bakersfield Refinery, Bakersfield, CA Page 1 of 1 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID Parameter R~¥1t RI. MDL DF Qual Units Mercpry 0.0000973 0,00020 0.0000672 1 J rog/L_ Parameter Result RL MDL DF Ou_al Units Mercury 0.0000794 0.00020 0.0000872 1 J mg/L / i RI.- Reporting Limit . DF- Dilution Factor , QUal: Qualifiers .I I 7440 Lincoln Way, Garden Grove, CA 92841.1432 * TEL: (714) 895-5494 FAX: (7!4) 894-7501 ~=-alscience ~_nvironmental · i_ aboratories, Inc. TriHydro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311-0000 ANALYTICAL REPORT Date Received: Work Order No: Preparation: Method: 10/16/03 03-10-0963 EPA 3520B EPA 8081A/8082_ Project: Shell Bakersfield Refinery, Bakersfield, CA Page 1 of 2 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID Parameter Alpha,BHC Gamma-BHC Bets-BHC Heptachlor De!ta-BHC Alddn Heptachlor Epoxide Endosulfan I Dieldrin 4,4~,DDE Endrin E_ndrin Aldehyde 4,4'-DDD Endosulfan II 4,4'-DDT Endosulfan Sulfate Chlordane Toxaphene Aroclor.1016 Aroclor-1221 Aroclor-1232 Aroclor-1242 Aroclor,1248 Aroclor-1254 Aroclor-1260 Aroclor,1262 Surrogates: Decachlorob!phenyl 2,4,5,6-Tetrachl0ro-m-Xylene Result RI_ MPl, DF Qual Units ND 0.050 0.013 1 ug/L ND 0.050 0.020 1 ug/L ND 0.050 0.0082 1 ug/L ND 0.050 0.0074 1 ug/L ND 0.050 0.018 1 ug/L ND 0.050 0.010 I ug/L ND 0.050 0.0_23 1 ug/L ND 0.050 0.0052 I ug/L ND 0.050 0.012 1 ug/L ND 0.050 0.012 I ug/L ND 0.050 0.012 1 ug/L ND 0.050 0.0052 1 ug/L ND 0.050 0.012 I ug/L ND 0.050 0.011 1 ug/I,_ ND 0.050 0.015 I ug/L ND 0.050 0.0079 I ug/L ND 0.50 0.085 I ug/L ND 2.0 0.31 1 ug/L ND 0.50 0.077 1 ug/L ND 0.50 0.050 1 ug/~ ND 0.50 0.050 I ug/L ND 0.50 0.050 1 ug/L ND 0.50 0.050 t ug/L ND 0.50 0.050 t ug/L ND 0.50 0.12 t ug/L ND 0.50 0.050 I ug/L REC ~%} ConV01 Qual Limits 96 5O- 135 32 50-135 2 ,~ ' I RL - Reporting Umlt , DF - Dilution Factor . Qua] - Qualifiers - -- ' 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL.' (714) 895-5494 FAX: (714) 894-7501 ~.alsc~ence nvironmental ' ~-- aboratories, Inc. TfiHydro Corporation 8200 Stockda!e Hwy,, Suite M-10, #329 Bakersfield, CA 933i t-0000 ANALYTICAL REPORT Date ReceiVedi- Work Order No: Preparation; Method; 10/16/03 03,10-0963 EPA 3520B _EPA 8081A/8082 Project: Shell Bakersfield Refinery, Bakersfield, CA Page 2 of 2 Lab Sample D_ate Date Date , Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID parameter Result RL MD~, DF Alpha-BHC ND 0.050 0.013 1 Gamma-BHC ND 0.050 0.020 1 Beta-BHC ND 0.050 0.0082 1 Heptachlor ND 0.050 0.0074 1 Delta-BHC ND 0.050 0.018 1 Aldrln ND 0.050 0.010 1 Heptachlor Epoxlde ND 0.050 0.023 1 Endosulfan I ND 0.050 0.0052 Dlelddn ND 0.050 0.012 1 4,4'-DDE ND 0,050 0.012 1 Endrin ND 0,050 0.01_2 1 Endr!n AJdehyde ND 0.050 0.0052 1 4,4'-DDD ND 0.050 0.012 t Endosulfan II ND 0.050 0.011 t 4,4'-DDT ND 0.050 0.015 1 Endosulfan Sulfate ND 0.050 0.0079 t Chlordane ND 0.50 0,085 1 Toxaphene ND 2.0 0.31 1 Amclor-1016 ND 0.50 0.077 1 Amclor-1221 ND 0.50 0.050 1 Aroclor-1232 ND 0.50 0.050 ! Aroclor-1242 ND 0.50 0.050 t Aroclor.1248 ND 0.50 0.050 1 Aroclor-1254 ND 0.50 0.050 1 Aroclor-1260 ND 0,50 0.t2 1 Aroclor-1282 ND 0.50 0.050 1 Surrooates: REC [%) _P~,Qnlr~l , Llmlt~ Decachlorobiphenyl 95 50-135 2,4,5,6.Tetrachl0ro-m.Xylene 58 50-t35 Qual Units Oual ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L uo/t. ug/L ug/L ug/I. ug/L ug/L ug/L. ugA. ug/L ug/L ug/L ugA. ug/L. ug/L I I RL - Reporting ~imit , DF - Dilution Factor : Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 TEL: (71 4) 895-5494 · FAX: (7!4) 894-7501 ~a!s_cience ~._nvironmental ~,. aboratories, !nc, TriHydr° Co-r~)ration 8200 Stockdale Hwy,, Suite M-10, #329 Bakersfield, CA 93311-0000 ANALYTICAL REPORT Date Received: 10/16/03 Work Order No: 03-10-0963 Preparation: N/A Method: _EPA 7199 Project: Shell Bakersfield Refinery, Bakersfield, CA Page 1 of ! Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID Comment(s); ,Sample analyzed outside recommended holding time, parameter Result RL MDL DF Qual Units Chromium, Hexavalent ND 1.0 0.057 1 Parameter Chromium, Hexavalent Result RI_ MOL DF Qual Units ND 1.0 0.057 '1 ug/L 7440 Lincoln Way, Garden Grove, CA 92841-1432 TEL: (714) 895-5494 · FAX: (714) 894-7501 ~..-alscience nvironmental ~ aboratOries, Inc. TriHydro Corporation - 8200 Stockdale Hwy. Suite M-10, #329 Bakersfield, CA g33'11-0000 ANALYTICAL REPORT D~te Received: 10/16/0~ Work Order No: 03-t0-0963 Preparation: EPA $030B Method: . EPA 8260B Units: ug/L Project: Shell Bakersfield Refinery, Bakersfield, CA Page 1 of 2 Lab Sample Date Date Date Client Sample Number Number Collected Mat~x Prepared Anal~'zed QC Batch ID Parameter Acetone Benzene Bromo _benzene Bromochloromethane Bromodich oromethane Bromoform Bromomethane 2-Butenone n-Butylbenzene sec-Butylbenzene tert-Butylbenzene Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene Dlbromochloromethan 1,2-Dlbromo-3-Ch!oropropane 1,2-Dibromoethane Dlbromomethane 1,2-Dichlorobenzene 1,3-Dlchlorobenzene 1,4-Dlchlo~obenzene Dlchlorodlfluoromethane 1,1-Dichloroe~ane 1,2-Dlchloroethane 1,1 -Dichloroethene c- 1,2-Dlchloroethene t-l,2-Dichloroethene 1,2-Dichloropropane 1,3-Dichloropropane 2,2-Dlchloropropane Surrogates; Dibromofluoromethane t,4-Bromofluorobenzene Result RL MDL DF Qual Paremeter Result ND 10 3.6 t 1,1-Dichloropropene ND ND 0.50 0.29 1 c-l,3-Dichloropropene ND ND 1.0 0.26 1 t-1,3-Dichloropropene ND ND 1.0 0.37 I Ethylbenzene ND ND 1.0 0.33 I 2-Hexanone ND ND 1.0 0.87 1 Isopropylbenzene ND ND 10 0.90 I p-lsopropyltoluene ND ND 10 1.7 t Methylene Chloride ND ND 1.0 0.34 1 4-Methyl.2-Pentanone ND ND 1.0 0.11 t Naphthalene ND ND 1,0 0.23 I n-Propylbenzene ND ND 10 0.28 I Styrene ND ND 0.50 0.40 I 1,1,1,2-Tetrachloroethane ND ND 1.0 0.19 t 1,1,2,2-Tetrachloroethane ND ND 1.0 0.46 I Tetrachloroethene ND ND 1.0 0.45 1 Toluene ND ND 10 0.43 1 1,2,3-Trlchlorobenzene ND ND 1.0 0.67 1 1,2,4-Tdchlorobenzene ND ND 1.0 0.16 1 1,1,1.Tdchloroethane ND ND 1.0 0.29 1 1,1,2-Trlchloroelhane ND ND 5.0 2.6 1 Trichloroethene ND ND 1.0 0.51 1 Trichlorofluoromethane NO ND 1.0 0.46 t t,2,3-Trichloropropane ND ND 1.0 0.29 1 1,2,4-Tdmethylbenzene ND ND 1.0 0.27 1 1,3,5-Tdmethylbenzene ND ND 1.0 0.28 t Vinyl Acetate ND ND 1.0 0.47 I Vinyl Chloride ND ND 1.0 0.40 1 p/m-Xylene ND ND 0.50 0.35 1 o-Xylene ND ND 1.0 0.32 I Methyl-t-Butyl Ether (MTBE) ND ND 1.0 0.56 1 Tert-Butyl Alcohol (TBA) ND ND 1.0 0.60 I DIIsopropyl Ether (D!?E) ND ND 1.0 0.40 1 Ethyl-t-Bury! Ether (ETBE) ND ND 1.0 0.35 1 Tert-AmyI-Methyl Ether (TAME) ND ND 1.0 0.39 1 Ethanol ND REC (%) Control Limits Qual Surrogates: REC ~%1 99 84,120 Toluene-d8 98 89 84-108 RL MDI, DF 1.0 O.55 ! 0.50 0.44 1 0.5O 0,30 1 1,0 0,19 .1 10 2.5 t 1.0 0.17 1 1.0 0,17 1. 10 1.7 1 10 2,6 1 10 0.56 1 1.0 0.24 1 1.0 0.14 1 1.0 0,45 1 1.0 0.19 1 1.0 0.29 1 1.0 0.35 1 1.0 0.40 1 1.0 0.28 1 1.0 0.46 1 1.0 0.42 1 1.0 0.46 1 t0 0.27 t 5.0 2.0 1 1.0 0.22 1 1.0 0.11 1 t0 3.6 1 0.50 0.35 1 1.0 0.17 1 1.0. 0.!6 1 1.0 0.26 1 10 4.9 1 2.0 0.27 1 2.0 0.33 1 2.0 0.32 1 100 52 1 Contro! Limits Qual 91~109 QUal porting umit , DF - Dilution Factor . Qual - Qualifiers ' 7440 Lincoln Way, Garden Grove, CA 92841,1432 · TEL:(714)895,5494 · FAX: (714) 894.7501 =nvironmental ~ aboratories, Inc, TriH~dro Corporation 8200 Stockdale Hwy,, Suite M-10, #329 Bakersfield, CA 93311-0000 Project: Shell Bakersfield Refinery, Bakersfield, CA Lab Sample Client Sample Number Number · ANALYTICAL REPORT Date Received: Work Order No; Preparation; Method: Units: Date Date Date Collected Matrix Prepared Analyzed 10/16/03 03-10-0963 _EPA 5030B EPA 8260B ug/L Page 2 of 2 QC Batch ID Parameter ..Result RL MDL DF: . Acetone ND 10 3.6 1 Benzene ND 0.50 0.29 1 Bromobenzene ND 1.0 0.26 1 Bromochloromethane ND 1.0 0.37 t Bromodichloromethane ND 1,0 0.33 1 Bromoform ND 1.0 0.87 1 _Bmmomethane ND 10 0,90 1 2-Butanone ND 10 1,7 1 n. Butylbenzene ND 1,0 0.34 1 sec-Bptylbenzene ND 1,0 0.11 1 tert-B_utylbenzene ND 1,0 0,23 1 Carbon Disulfide ND 10 0.28 1 Carbon Tetrachlorlde ND 0.50 0.40 1 Chlorobenzene ND 1.0 0,19 1 · Chloroethane ND 1,0 0.46 1 Chlorofoml · ND 1.0 0.45 1 Chloromethane ND 10 0.43 1 2-Chlorotoluene ND 1.0 0.67 1 4-Chlorotoluene ND 1.0 0,16 1 Dlbmmochloromethane ND 1.0 0.29 t !,2-Dibromo-3-Chloropropane ND 5.0 2.6 1 1,2-Dlbromoethane ND 1.0 0.51 1 Dibmmornethane ND 1.0 0.46 1 1,2-Dlchlorobenzene ND 1.0 0.29 1 !,3-D!qhlqrobenzene ND 1.0 0.27 1 1,4-Dichlorobenzene ND 1.0 0.28 t Dichlorodiflu0romethane ND · 1,0 0.47 l,l-Dichloroethane ND 1.0. 0.40 1 1,2-Dlchloroethane ND 0.50 0.35 1 1,1-Dichloroethene ND 1.0 0.32 t c-l,2-Dich!oroethene ND 1,0 0.56 1 t-1,2-Dichloroethene ND 1.0 0.60 1 !,~-Dichl0ropr0Pane ND 1,0 0,40 1 1,3-Dlchloropropane ND 1.0 0,35 1 2,2,Dichloropropane ND 1.0 0.39 t Surml~ates: REC (~/d Control Limits OuaJ Dibromofluoromethane 110 84-120 1,4-Bromofluorobenzene 89 847108 Qual Parameter Result 1,1-Dichloropropene ND c-l,3-Dichlompropene ND t-!,3-Dichloropropene ND Ethylbenzene ND 2-Hexanone ND. Isopropylbenzene ND p-I$0propyltoluene ND Methylene Chloride 2.7 4-Methyl-2-Pentanone ND Naphthalene ND n-Propylbenzene ND Styrene ND 1,1,1,2-Tetrachlorcethane ND 1,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND 1,2,3-Trichlombenzene ND 1,2,4.Trichlorobenzene ND 1, l,l-Trichloroethane ND 1,t ,2-Trichloroethane ND Trichloroethene ND Trichlorofluoromethane ND 1,2,3-Trichloropropane ND 1,2,4-Trimethytben _z_ ene ND i, 3,5-Tdmethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND plm-Xylene ND o-Xylene ND Methyl-t-Butyl Ether (MTBE) ND TeA-Butyl Alcohol (TBA) ND Diis_opropyl Ether (DIPE) ND Ethyl-t-B_utyl Ether (ETBE) ND Tert-AmyI.Methyl Ether (TAME) ND Ethanol ND Surrogates: REC (%) Toluene,d8 92 RL MDL DF 1.0 0.55 0.50 0.44 0.50 0,30 1,0 0.19 10 2,5 1.0 0.17 1.0 0.17 10.0 t.7 10 2.6 10 0,56 1.0 0.24 1.0 0.14 t,0 O.45 1,0 0,19 1.0 0.20 1.0 0.35 1.0 0.40 1.0 0.28 !,0 0.46 1.0 0,42 1.0 0.48 10 0.27 5.0 2.0 1.0 0.22 1.0 0.11 10 3.6 0.50 0.35 1.0 0.17 1.0 0,16 1.0 0.28 10 4.9 2.0 0.27 2,0 0.33 2.0 0.32 100 52 Control Limits Oual 91-109 Qual 1 1 1 1 1 1 1 1J 1 t 1 1 1 1 1 ' J I RL ? Reporting Umit : DF ~ Dilution FaCtOr ', Oual - Opp!!flers 7440 Lincoln Way, Garden Grove, CA 92841-1432 * TEL:(714) 895-5494 · FAX: (714) 894-7501 Iscience nvironmental · -- aboratories, Inc. TriHydro Corporation 8200 Stockdale Hwy,, Suite M.10, #329 Bakersfield, CA 93311.0000 ANALYTICAL REPORT Date Received; · Work Order No: Preparation: Method: Units: Project: Shell Bakersfield Refinery, Bakersfield, CA Lab Sample Date Date Client Sample Number Number Collected Matrix Prepared Date Analyzed 10/16/03 03-10-0963 EPA 5030B EPA 8260B ug/L Page 1 of 2 Parametp_r Result RL .MDL DF Qual Parameter Result Benzene ND 0.50 0.29 1 1,1-Dlchloroethene ND Bromodichloromelhane ND 1.0 0.33 1 t.l,2-Dichloroethene ND Brornoform ND 1.0 0.87 1 1,2-Dichlor_~ropane ND Bromomethane ND 2.0 0,90 I Acroleln ND Carbon TetFachl0ride ND 0.50 0.40 1 Ac. zylonltrlle ND Chlorobenzene ND 1.0 0.19 1 c-l,3-Dlchloropropene ND Chloroethane ND 1,0 0.46 1 t-l,3-Dichloropropene ND 2-Chloroelhyl Vinyl Ether ND 2.0 0.51 1 Ethylbenzene ND · Chloroform ND 1.0 0.45 1 Methylene Chlodde ND Chlommethane ND 2.0 0.43 1 1,1.2,2-Tetrachloroethane ND Dlbmmochloromethane ND 1.0 0.29 ! Tetrachloroethene ND 1,2-Dlchlorobenzene ND 1.0 0.29 1 Toluene ND 1,3-Dlchlorobenzene ND 1.0 0.27 1 1,1,1-Trichloroethane ND 1,4-Dichlorobenzene ND 1.0 0.28 1 ' 1,1,2-Trichloroethane ND 1 ,l-Dlchloroethene ND 1.0 0.40 t Trlchloroethene ND 1,2-Dichloroethane ND 0.50 0.35 I Vinyl Chloride ND Surrogates: REC {%) Control Limits Oual SurroRates: REC (%i Dibromofluoromethsne 99 84-120 Toluene-cl8 98 1,4-Bromofluoroben~ene 89 84-108 RI. MDL 1.0 0.32 1 1.0 0.8(3 1 t .0 0.40 1 20 8,7 1 0.50 0.44 t 0,50 0,30 1 0.50 0,19 · 0.5O 0.20 1 1.0 0.46 1 ! .0 0.42 1 t .0 0.48 1 0.50 0.35 Control Limits Qupl 91-109 Oual I I -- 'RL - Reporting Limit , DF ~ Dilution Factor , Oua~ - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841.1432 · TEL: (714) 895-5494 · FAX: (7!4) 894-7501 =-als¢lence ._nvironmental · abomtories, Inc, TriHYdro Corporation §200 Stockdale Hwy,, Suite M-t0, #$29 Bakersfield, CA 93311-0000 Proiect: Shell Bakersfield Refinery, Bakersfield, CA ANALYTICAL REPORT Date Received: Work Order NO: Preparation: Method: Units; 10/16/03 03-10-0963 EPA 5030B EPA 8_260B ug/L Page 2 of 2 Analyzed QC Batch ID Lab Sample Date Date Date Client SamPle Number Number Collected Matrix Prepared I~~~~~~~~~~~~j~~~ , ~ ~ ~ . .~ ~=~ ~.~ .... -- . ,,.~ "~* ' ~' "~ :..,~3~ *' ...... :~ i~:~ = ~ ~' i-~ !~ ~ '~*** ~,~ ~'~ Parameter Result RL ~DI- DF ~ual Benzene ND 0.50 0.29 1 Bromodichloromethane ND 1.0 0,33 1 Bromoform ND t .0 0.87 1 Bromomethane ND. 2,0 0.90 1 Carbon Tetrachlodde ND 0.50 0.40 1 Chlorobenzene ND !.0 0.19 1 Chloroethane ND t .0 0.46 1 ~-Ch!oroethyl Vinyl Ether ND 2.0 0.51 1 Chloroform ND .1.0 0.45 1 Ch!oromethane ' ND 2.0 0.43 1 Dibromochloromethane ND 1,0 0.29 1 1,2.Dichlorobenzene ND 1.0 0.29 1 1,3-Dichlombenzene ND . 1.0 0.27 1 1,4-Dichlorobenzene ND 1,0 0.28 1 1 ,l-Dichlomethane ND 1.0 0.40 1 1,2-Dlchloroethane ND 0.50 0.35 1 .S!Jrro~ates: REC (%1 Control Limits Qual Dlbromofluoromethane 110 84~120 1,4-Bmmofluorobenzene 89 84-! 08 Parameter 1,1-Dichloroethene t-1,2-Dichloroethene 1,2-Dichlompropane Acroleln Acrylonitrtle c-1,3-Dichloropropene t-1,3-Dlchl0ropropene Ethylbenzene Methylene Chloride 1,1.2.2-Tetrachloroethane Tetrachloroethene Toluene 1,1,l-Trichloroethane 1,1,2-Trichloroethane Trichloroethene Vinyl Chloride SurroQates; Toluene-d8 Result ~ MDL DF ND 1.0 0.32 1 ND 1.0 0.60 1 ND 1,0 0,40 1 ND 20 8,7 1 ND 10 2.1 1 ND 0.50 0.44 1 ND 0.50 0.30 1 ND 0.50 0.19 1 2.7 5.0 1.7 1 J ND 1.0 0.19 1 ND 0.50 0.20 1 ND 1.0 0.35 i 1 ND 1.0 0.46 1 ND t.0 0.4;~ 1 ND 1.0 0.48 "~ ND 0.50 0.35 1 REC ~%) Control Limits Qual 92 91.109 ,Qual ,~ - . RL - RePorting Limit , DF - Dilution Factor , Ouat ? Qualifiers 7440 Lincoln Way, Garden GrOve, CA 92841-1432 · TEL: (714) 895,5494 · FAX: (714) 894-7501 nvironmental aboratories, Inc. TriHydm Corp0~:ation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311-0000 Project: Shell Bakersfield Refinery, Bakersfield, CA ANALYTICAL REPORT Date Received: 10/16/03 Work Order No: 03-10-0963 Preparation: EPA 3520B Method: EPA 82_70C Units: ug/L Page 1 of 2 · Lab Sample Date Date Date , Client Sample Number Number Collected Mablx prepared AnalYZed QC Batch ID parameter Result RL MDL N-Nitros~d_ ~ imethylamlne ND 10 0.55 Phenol ND 5.0 0.58 Bis(2-Chloroethyl) Ether ND 10 0.51 2-ChlorophenoI ND 5.0 0.50 1,3-Dich!orobenzene ND 5.0 0.58 1,4-Dichlorobenzene ND 5.0 0.57 1,2-Dichlorobenzene ND 5.0 0.56 BIs(2-Chlorolsopropyl) ~Ether ND 5.0 0.76 N-Nltroso-dl-n-propylamine ND 5.0 0.65 Hexachloroethane ND 5.0 0,49 Nitrobenzene ND 25 0.67 Isophorone ND 5.0 0,62 2-Nitropheno! ND 10 0.59 2,4-Dimethylphenol ND 5.0 0.60 BIs(2-Ch!oroethoxy) Methane ND 10 0.58 2,4-Dichlorophenol ND 5.0 0.53 1,2,4-Trichlorobenzene ND 5.0 0.65 1,2-Diphenylhydrazlne ND 2.0 0.19 Naphthalene ND 5.0 0.72 Hexachloro-1,3-Buladiene ND 5.0 0.59 4-Chloro-3-Methylphen ol ND 5.0 0.58 Hexachlorocyc~opentadlene ND 15 0.22 2,4,6-Tdch!orophenol ND 5.0 0.61 2-Chloronaphthalene ND 5.0 0.65 Dlmethyl Phthalate ND 5.0 0.65 Acenaphthylene ND 5.0 0.72 Acenaphthene ND 5.0 0.70 2,4-Dinitrophenol ND 25 1.3 4-Nitmpheno! ND 5.0 0.43 Surrogates; REC ~%) Con, .b'-ol Limits 2-Fluorophenol 59 15-138 Nltrobenzene-d5 71 56-123 2,4,6-Trlbromophenol 58 32-143 DF: ~ual Parameter Result RI. MDL t 2,4,Dinltmtoluene ND 5.0 0.50 1 2,6-Dinltrotoluene ND 5.0 0.58 t Diethyl Phthalate ND 5,0 0.70 1 4,ChlorophenyI-Phenyl Ether ND 5.0 0.61 I Fluomne ND 5,0 0.69 1 4,6-Dinitro-2-Methylphenol ND 25 1.7 I N-Nllmsodlphenytamlne ND 5.0 0.68 1 4-Bromophenyl,Pbenyl Ether ND 5,0 0.6! 1 Hexachlo~obenzene ND 5.0 0.61 I P_entachlorophenol ND 5.0 0.37 1 Phenanthmne ND 5,0 0.75 I Anthracene ND 5.0 0.75 1 Di,n-Butyl Phthalate ND 5.0 0.73 1 Fluoranthene ND 5.0 0.76 t Benzldine ND 50 0.31 1 Pyrene ND 5.0 0.68 t Butyl Benzyl Phthalate ND 5.0 0.52 1 3,3'-Dichlorobenzidine ND 5.0 0.63 1 Benzo (a) Anthracene ND 5.0 0.58 1 Bis(g-Ethylhexyl) Phl~alate ND 5.0 0.51 1 Chrysene ND 5.0 0.64 1 Di-n-Octyl Phthalate ND 5.0 0.50 1 Benzo (k) Fluoranthene ND 5.0 0.85 1 Benzo (b) Fluoranthene ND 5.0 0.62 1 Benzo (a) Pyrene ND $.0 0.44 1 Benzo (g,h,i) Peq4ene ND 5.0 0.36 1 Indeno (1,2,3-c.d) Pymne ND 5,0 0.42 I Dibenz (a,h) Anthracene ND 5,0 0,41 t Q~tal Surro<3ates: REC (%) Control Llmlt~ Phenol-d6 62 17-141 2-Fluorobiphenyl 50 45-120 p-Te~phenyl-dl 4 90 46-133 D._E 1 t 1 1 1 1 1 Qual 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I I ....... RL - Reporting Lim/l , DF - Dilution Factor . Oua~ - Qualifiers . ~~~i[ _ 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 · FAX: (714) 894-7501 ~al$cience E~._nvironmental L bo,= o"es, TriHydro Corporation 8200 Stockdale Hwy., Suite M.10, #329 Bakersfield, CA 93311-0000 Project: Shell Bakersfield Refinery, Bakersfield, CA ANALYTICAL REPORT Date Received: 10/16/03 Work Order No; 03-t 0-0963 Preparation: EPA 3520B Method: EPA 8270C Units: ug/L Page 2 of 2 Lab Sample Dali Date Dale Client Sample Number Number Collected Matrix Prepared Anai¥-~ed QC Batch ID par-dmeter ~ RI_ MD.__~L DF Qual N-N!lrosodimethylamine ND 10 0.55 1 Phenol ND 5,0 0.58 1 BIs(2-Chloroethyl) Ether ND 10 0.51 1 2.ChlorOphenol ND 5.0 0.50 1 1,3-Dichlorobenzene ND 5.0 0.58 1 1,4-Dic. hlorobenzene ND 5,0 0.57 1 1,2-Dichlorobenzene ND 5.0 0.56 1 Bis(2-Chlqroisopropyl) Ether ND 5.0 0.76 1 N-Nltroso-di-n-propylamine ND 5.0 0,65 1 Hexachloroethane ND 5.0 0.49 1 Nitrobenzene ND 25 0.67 1 Isophorone ND 5.0 0.62 1 2-Nltrophenol ND 10 0.59 2,4-Dimethy!phen_ol ND 5.0 0.60 Bis(2-Chloroethoxy) Methane ND 10 0.58 2,4-Dichlorophenol ND 5.0 0.53 . 1 1,2,4-Trichlorobenzene ND 5.0 0.65 t 1,2-DiphenylhydrazJne ND 2.0 0.19 1 Naphthalene ND 5.0 0.72 1 Hexachloro-1,3-Butadiene ND 5.0 0,59 1 4-Chloro-3- Methylphenol ND 5.0 0.,58 1 Hexachlorocyclopentadiene ND 15 0.22 1 2,4,6-Trlchlorophenol ND 5.0 0.61 1 2-Chloronaphthalene ND 5.0 0.65 1 Dimethyl Phthalate ND 5.0 0.6_5 1 Acenaphthylene ND 5.0 0.72 Acenaphthene ND 5.0 0.70 1 2,4-Dlnltrophehol ND 25 1.3 1 4-Nitrophenol ND 5.0 0.43 1 Surroqates: REC~ (%3 Co. ntrol Limfts Oual 2-Fluorophenol 84 15,138 Nitrobenzene-d5 90 56-123 2,4,6-Tribromophenol 68 32-143 Parameter ~ ._~ H_D_L D_~F Qual 2.4-Dlnltrotoluene ND 5.0 0.50 2,6-Dinitmtoluene ND 5,0 0,56 t Diethyl Phthalate ND 5.0 0,70 1 4-Ch!orophenyI-Phenyl Ether ND 5.0 0.6t Fluorene ND 5,0 0.69 1' 4,6-Dinltro-2-Methylphenol ND 25 1.7 I N-NitrosodiphenYtamine ND 5.0 0.68 1 4-BromophenyI-Phenyl Ether ND 5,0 0,61 1 Hexachlorobenzene ND 5,0 0.6! 1 Pentachlorophenol ND 5.0 0,37 Phenanthrene ND ·5.0 0.75 t Anthracene ND 5.0 0.75 1 DJ-n-Butyl Phtha!ate ND 5.0 0,73 1 Fluoranthene ND 5.0 0.78 ! Benzidlne ND 50 0.31 t Pyrene ND 5.0 0,68 1 Butyl Benzyl Phthalate ND 5,0 0,52 1 3,3'-Dichlorobenzidine ND 5,0 0,63 Benzo (a) Anthracene ND 5.0 0,56 1 Bis(2-Ethylhexyl) Phthalate ND 5.0 0.51 Chrysene ND 5.0 0.64 t Di-n-Octyl Phthalate ND 5,0 0.50 t Benzo (k) Fluoranthene ND 5.0 0.65 t Benzo (b) Fluoranthene ND 5.0 0.62 Benzo (a) Pyrene ND 5.0 0,44 1 Benzo (g,h,I) Pe~ene ND 5.0 0.36 1 lndeno (!,2,3-c,d) Pyrene ND 5.0 0.42 1 Dibenz (a.,h) Anthracene ND 5.0 0.41 t Surroqates; REC (%) Control Limits Phenol-d6 84 17-141 2-Fluorobiphenyl 77 45-120 p-Terphenyl-d14 94 46-133 Qual ~1~ Umit . DF - Dilution FaCtOr ~-, Qual ? Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 ; TEL: (714) 895-5494 FAX: (714) 894-7501 ;~,-alscience ~nvironmental ~ aboratorfes, Inc. Quality Control. Duplicate TriHydro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311-0000 Date Received: 10/16/03 Work Order No: 03-10-0963 ' Preparation: N/A Method: EPA 130.2 Project: Shell Bakersfield Refinery, Bakersfield, CA Date Date Duplicate Batch Quality Control Sample ID Matrix Instrument Prepared: Analyzed: Number Parameter · Samole Cone DUP Conc RPD RPD CL Hardness, Total 2500 2400 2 0-25 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895.5494 · FAX; (714) 894-7501 ~;alscience E~-*_nvironmenta! J~ abomtories, Inc. Quality Control ~- Duplicate TriHYdro Corporation 8200 Stockdale Hwy,, Suite M-10, #329 Bakersfield, CA 93311-0000 Project: Shell Bakersfield Refinery, Bakersfield, CA Date Received: 10/16/03 Work Order No: 03-10-0963 Preparation: N/A Method: EPA 150.1 Date Date Duplicate Batch Quality Control Sample ID Matrix Instrument Prepared: Anal~_ed: Number Parameter Samole Corm D. UP Cor~ RPD RPD CL pH 6.57 6.57 0 0-25 Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 o TEL: (714) 895-5494 · FAX: (714) 894-7501 =alsCience J nvironmental aboratories, Inc. Quality Control - Spike/Spike Duplicate TdHydro Corporation 6200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93:311-0000 Proiect: Shell Bakersfield Refinery~ Bakersfield~ CA Date Received: 10/16/03 Work Order No: ' 03.10.0963 Preparation: Total Digestion Method: EPA 6020 Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number Pa, rameter MS %REC MSD %REC %REC CL RPD RPD (~L Oualifieqi Antimony ' 165 157 80-120 5 0-20 Arsenic 98 97 80-120 2 0-20 Beryllium 100 98 80-120 t 0-20 Cadmium 97 95 80-120 2 0-20 Chromium (Total) 108 t04 80-120 3 0-20 Copper 95 91 80-120 4 0-20 Lead 98 93 80-120 5 0-20 Nickel 95 92 80-120 3 0-20 Selenium 81 85 80-120 5 0-20 Silver 91 88 80-120 3 0-20 Thallium 90 86 80-120 5 0-20 Zinc 74 80 80-120 6 0-20 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 · FAX: (714) 89_4-7501 ~-alscience _~nvironmental ~-- aboratories, Inc. Quality Control - PDS / PDSD TriHydr° Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311,0000 Project: Shell Bakersfield Refinery, Bakersfield, CA Date Received: Work Order No: Preparation: Method: Quality Control Sample ID Matrix Instrument t0!t6/03 03-10~0963 Total Digestion EPA 6020 Date Date A~alyzed PDS/pD~D _Batch Prepared Npmber Parameter PDS %REC PDSD %REC %REC CL RP~) RPD CL Qualifiers AntimOny 123 124 75-125 · 1 Arsenic 91 92 75-125 0 Beryllium 93 94 75-125 2 Cadmium 92 94 75-125 2 Chromium (Total) 99 100 75-125 1 Copper 93 95 75-125 2 Lead 92 95 75-125 4 Nickel 89 92 75-125 3 Selenium 79 81 75-125 2 Silver 93 94 75-125 2 Thallium 85 88 75-125 4 Zinc 115 119 75-125 3 0-20 0.20 0-20 0-20 0-20 O-2O 0-2O 0-20 0-20 O-20 0-20 0-20 7440 Lincoln Way, Garden Grove, CA92841-1432 · TEL: (714) 895-5494 · FAX:(714) 894-7501 vironmental · ..abomtorfes, Inc. Quality Control - LCS/LCS Duplicate TriHydm Corporation 8200 Stockdale Hwy,, Suite M-10, #329 Bakersfield, CA.93311-0000 Project: Shell Bakersfield Refinery, Bakersfield, CA Date Received: Work Order No: Preparation: Method: 10/16/03 03-10~0963 Total Digestion EPA 6020 Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number Parameter LC$ %REC LCSD %REC %REC CL RPD IRPD Cl- Antimony t 14 116 80-120 _2 0-20 Arsenic 95 93 80-120 t 0-20 Beryllium 98 98 80-120 0 0-20 Cadmium 99 99 80-120 0 0-20 Chromium (Total) 103 101 80-120 I 0-20 Copper 9'/ 96 80-120 1 0-20 Lead 102 102 80-120 1 0-20 Nickel 97 96 80-120 1 0-20 Selenium 84 83 80-120 t 0-20 Silver t04 103 80-120 0 0-20 Thallium 98 _98 80-120 0 0-20 Zinc 90 88 80-120 2 0-20 Cluallfier~ 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 · FAX: (7t4) 894-7501 ~=alscience ~nVironmental Laboratories, Inc. Quality Control - Laboratory Control Sample TriHydr° Corporation 8200 Stockdale Hwy,, Suite M-10, #329 Bakersfield, CA 9331 t'0000 Date Received; 10/t6/03 Work Order No: 03-10-0963 Preparation: EPA 7470A Total Method: EPA 7470A Project: Shell Bakersfield Refinery, Bakersfield, CA Qual~ Control Sample ID_ Matrix Instrument Date Analyzed Lab File ID LCS Batch Number Pa_rarnete~r Conc Added C0nc Recovered %Rec ~_IR~ CL Qualifiem Mercury 0.0100 0.0112 112 90-122 7440 Lincoln Way, Garden Grove, CA 92841-1432 ., TEL: (714) 895-5494 ., FAX: (714) 894-7501 alscience ~nvironmental ~ aborato~fes, Inc. Quality Control - Spike/Spike Duplicate TriHydro Corporation 8200 Stockdale Hwy,, Suite M-10, #329 Bakersfield, CA 93311-0000 .P, roject: Shell Bakersfield Refinery, Ba_kersfield~ C_A Date Received: 10/! 6/03 Work Order No; 03--10-0963 Preparation: EPA 7470A Total Method: EPA 7470A Date Date MS/MSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number ..Parameter MS %REC MSD %REC %REC CL RPD RPD__C_L' Mercury 113 114 71-134 t 0-t4 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 · FAX: (714) 894-7501 ~t,~=a__ls_cience ~=n vironmen ~1 Laboratories, Inc. Quality Control - Spike/Spike Duplicate TriHydro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311--0000 ,Projecti Shell Bakersfield Refine.fyr Bakersfield~ CA Date Received: 10/16/03 Work Order No: 03-10~0963 Preparation: N/A Method: , EPA 7199 Date Date MSIMSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number Parameter MS~oREC ..MSD %REC %REC CL RPD RPD eL Qualifiers Chromium, Hexavalent 98 98 70-130 1 0-25 7440 Linco!nWay, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 · FAX:(714) 894-7501 l~E~vironmentaI Quality Control - Laboratory Con~rol Sample aborato~fes, Inc. Tr~klydro (~orporatlon 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311-0000 Project; Shell Bakersfield Refinery, Bakersfield, CA Quality Control Sample ID Matrix Instrument Work Order No: Preparation: Method: Date Analyzed 03~10~0963 N/A EPA 7199 Lab File ID LCS Batch Numl~e~ r _parameter .C, OnC Added Conc Recovered %Rec %Re~_ ~ Oualifiem Ghromium, Hexavalent 10 9.7 96 80*~20 7440 Lincoln Way, Garden Grove, CA 92841-1432 TEL: (714) 895-5494 · FAX: (714) 894-7501 Iscience ~._nVironmental iL aboraton'es, Inc. Quality Control - LCS/LCS Duplicate TriHydro Corporation 8200 Stockdale Hwy., Suite M~10, #329 Bakersfield, CA 93311-0000 Date ReCeived: Work Order No: Preparation: Method: Project: Shell Bakersfield Refinery, Bakersfield, CA 10/16/03 03-10-0963 EPA 3520B EPA 8081,6,/8082 Date Date LCS/LCSD Batch Quality Contro! Sample ID Matrix Instrument Prepared Analyzed ' Number Parameter Gamma-BHC Heptachlor Endosulfan I Dieldrin Endrin 4,4'-DDT Arodor,1260 L_C_S %REC LCS_D_%R,EC %R_~EC CL RPD RPD .Cl._ l~s l~s 50-~3s 1 0-25 124 110 50-135 12 0-25 111 112 50.135 1 0-25 116 121 50-1 ~5 4 0-25 90 93 5O- 135 4 0-25 120 125 50-135 4 0-25 92 98 50-135 6 0-25 Clualifier~ 7440 Lincoln Way, Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 · FAX: (714) 894-7501 vironmental abomtorfes, Inc. Quality Control - Spike/Spike Duplicate TriHydm Corporation Date Received: 10/16/03 8200 Stockdale Hwy,, Suite M-10, #329 Work Order No: 03-10-0963 Bakersfield, CA 93311~0000 Preparation: EPA 5030B Method: EPA 8260B Project: Shell Bakersfield Refinery~ Bakersfield~ CA Date Date MS/MSD Batch Quality Control Sample ID Matrix Insbument Prepared Analyzed Number Parameter MS %REC MSD %REC %REC CL RPD RPD CL Benzene Carbon Tetrachloride Chlorobenzene 1,2-DIchlorobenzene 1,1-Dichloroethene Toluene Trlchloroethene Vln~ ChlOride Melhyl-t-Butyl Ether (MTBE) TerLButyl Alcohol (TBA) DIIsopmpyl Ether (DIPE) Ethyl-t-Butyl Ether (ETBE) Tert-Amy!-Methyl Ether (TAM_E) Ethanol 102 103 84-120 103 105 72-132 2 100 98 87-117 2 100 102 86-116 2 102 102 77-137 .0 t05 105 85,121 0 100 ' 99 66-120 1 103 105 68-140 _2 109 112 68-128 3 106 109 30-156 3 105 108 75-123 3 103 108 66-182 5 105 109 59-181 3 93 94 20-176 t 0-13 0-15 0-12 0-13 0-15 0-15 0-16 0-t8 0-26 0-14 O-47 0,42 7440 Lincoln Way,Garden Grove, CA 92841-1432 · TEL: (714) 895-5494 · FAX: (714) 894-7501 m=-_elscience EE._nvironmental aboratories, Inc. Quality Control - ~LCSILCS Duplicate TriHydro Corporation 8200 Stockdale Hwy., Suite M-10, #329 Bakersfield, CA 93311-0000 Project; Shell Bakersfield Refinery, Bakersfield, CA Date Received; 10/t6/03 Work Order No: 03-10-0963 Preparation: EPA 5030B Method; EPA 8260B Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared . Analyzed Number Parameter Benzene Carbon Tetmchloride Chlorobenzene t,2-Dichlorobenzene 1 ~l-Dichloroethene Toluene Trlchlomethene Vinyl Chloride Methyl-t-Butyl Ether (MTBE) Tert-Butyl AlCOhol (TBA) Dlisopmpyl Ether (DIPE) Ethyl-t-_Butyl Ether (ETBE) Tert-AmyI-Methy! Ether (TAME) Ethanol LCS %REC 102 !02 101 105 100 t01 104 108 104 110 106. LCSD %REC. °_/oREC CL .RP0 _RPD 103 87-117 0 0-5 101 77-137 t 0-9 98 89-113 t 0-5 97 90-114 2 0-8 99 8t-129 I 0-15 105 88-118 0 0-71 101 67-121 2 0-2! 100 71-131 1 0-34 106 65-1125 1 0-49 107 38-140 I 0-98 101 77-119 6 0-53 107 73-121 ~2 0-31 111 71-1~9 1 0-33 98 54-132 9 0-55 Qualifiers 7440 Lincoln Way, Garden Grove, CA92841-1432 o TEL: (714) 895-5494 · FAX: (714) 894-7'501 ~alscience ~_=nvironmental i__ aboratories, Inc. Quality Control. LCSILCS Duplicate TriHydro Corporation 8200 Stockdale Hwy,, Suite M-10, #329 Bakersfield, CA 93311-0000 Project; Shell Bakersfield Refinery, Bakersfield, CA Date ReCeived: Work Order No: Preparation: Method: 10/!6/03 03-10-0963 EPA 3520B EPA 8270C Quality Control Sample Date Date LCS/LCSD Batch Matrix Instrument Prepared Analyzed Number Parameter LCS %_REC LCSD %REC %REC CL RPD Phenol 99 85 12-151 15 2.Chlomphenol 93 81 45-1~5 14 1,4-Dichlorobenzene 61 75 36-1~ 8 B N-Nitroso-di-n-propylamine 98 87 52-128 ! 1 1,2,4-Trichlorobenzene 82 75 42-120 9 4-Chloro-3-Methylphenol 103 92 20-150 10 Acenaphlhene 94 85 51-187 10 4-Nitrophenol 96 83 20-150 14 2,4-Dlnitrotoluene 92 81 25-14t3 t3 Pentac;h!orophenol 75 66 20-150 14 Pyrene 95 87 45-185 10 RPDQL ~0 ~11 ~0 0-~0 ~20 Qualifiers 7440 Lincoln Way, Garden .Grove, CA.92841-1432 · TEL: (714) 895-5494 · FAX: (714) 894-7501 ~=~alscience GLOSSARY OF TERMS AND QUALIFIERS ~__nvironmenta! · ~ abora tories, !nc. Work Order Number: 03-10~0963 Qualifier 2 J ND Definition Surrogate spike compound was out of control due to matrix interference. The associated method blank surrogate spike compound was in control and, therefore, the sample data was reported without further clarification. Spike or Spike Duplicate compound was out of control due to matrix interference. The associated LCS and/or LCSD was in control and, therefore, the sample data was reported .without further clarification. Ana!yte was detected at a concentratiOn'below the reporting limit. Reported value is estimated. Not detected at indicated reporting limit. 7440 Lincoln Way, Garden Grove, CA92841-1432 · TEL:(714) 895-5494 · FAX: (714} 894-7501 WORK ORDER #: Cooler: ,, ! of w SAMPLE RECEIPT FORM CLIENT: TEMPERATURE - SAMPLES RECEIVED BY: CALSCiENCE COURIER: _ _ Chilled, cooler with temperature blank provided. ~ Chilled, cooler without temperature blank. ~ Chilled and placed in cooler with wet ice. ~ Ambient and placed in cooler with wet ice. ..... Ambient temperature. No (Not Intact)' LABORATORY (Other than Calsclence Courier):' o C Temperature blank. ~~C IR thermometer. - Ambient temperature. °C Temperature blank. Yes No N/A I ICUSTODY SEAL INTACT: Sample(s): ~ Cooler:__ SAMPLE CONDITION: Chain-Of. Custody docpment(s) received with samples ......................... . Sample container label(s) consistent with custody papers ..................... ~ ~ ~ ....... ~ Sample container(s) intact and flood condition ........ ........................................ Correct cont~inem for anelyses requested ......................................... v .' ........ Proper preservation noteci on sample label(s) ..................................... ' ~: ............. VOA vial(s) free of headspace ................................................. ~... Tedlar bag(s) free of condensation ................................................... ., ~ ...... __ COMMENTS: CALSClENCE ENVIRONMENTAL Shell 'Oil ,Company Chain Of Custody Record LABORATORIES, INC. Shell Prelect Man'ager to be iinvoiced: Garden Gms, CA 92~1-1~2 ~J~~::~:~"~'"""'"~'"~'"' ~~~ ,PAGE: (714) 89~ ,(7~4),8~7~1'fax :~~::~::~'~::~::~::~] T~dm'Corpo~on 920 She~dan 'St~ ~mmie ~o~ng 8~70 ~:oh. 661 325<7~ ~ 63~7 ~,~1 ,~ . ........................... ~ ..... ~S ~E ~NFI~TION: HIGHEST. H~HE~ ~ BO~ING (82~ Two ~,t co~ one ,.,~b) ~ Field SamPle Ide~fl~on DA~ ~E ~ -r~- ~ ~?-g /o-~ p~.::..: -- ~ .~.~.. - _ , /~./~-~ ,~~.~. /o~/'V~ .. DISTRIBLITION: 'W~ite wilh fmal,~p~l, Grill1 lo File, yellow mid pink' lo Climl[ 1 Q/l~)O Rlv~lk~ Project No.: 077-030 SECOND QUARTER 2003 GROUNDWATER MONITORING REPORT SHELL OIL PRODUCTS U.S. BAKERSFIELD, CALIFORNIA August 13, 2003 Prepared for: Shell Oil Products U.S. 6451 Rosedale Highway Bakersfield, CA 93308 Prepared by: TriHydro Corporation 920 Sheridan Street Laramie, WY 82070 TriHydro Corporation 920 Sheridan Street (307) 745-7474 Laramie, Wyoming 82070 FAX: (307) 745-7729 H:\projects\S H ELL\Ba kersfi eld\Final\(J77-l~30~Repor~03.doc CERTIFICATION SECOND QUARTER 2003 GROUNDWATER MONITORING REPORT SHELL OIL PRODUCTS U.S. BAKERSFIELD, CALIFORNIA I certify that I have reviewed this document. To the best of my knowledge, the data contained herein are true and accurate and the work was performed in accordance with appropriate and customary professional standards. ~'~ 23 C~ertified ~ologist #527 Licenses Expire October 31, 2003 Date H:\Projects\SH ELL\Bakersfi eld\Final\O77-O30~ReportO3.doc TABLE OF CONTENTS Section 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 Page GROUNDWATER MONITORING SUMMARY (SECOND QUARTER 2003) ..................... 1-1 DATA SUBMITTAL (ATTACHED) ..................................................................................... 2-1 FACILITY DESCRIPTION ................................................................................................. 3-1 GEOLOGIC AND HYDROGEOLOGIC SETTING ............................................................. 4-1 DISTRIBUTION OF PETROLEUM CONSTITUENTS ....................................................... 5-1 5.1 Identification of Source Areas ................................................................................ 5-1 5.2 MTBE Plume Distribution In Groundwater ............................................................. 5-1 5.3 Benzene Plume Distribution in Groundwater ......................................................... 5-2 CONCEPTUAL PLAN FOR GROUNDWATER REMEDY ................................................. 6-1 TREATMENT SYSTEM OPERATION SUMMARY (SECOND QUARTER 2003) .............. 7-1 DATA QUALITY REVIEW (SECOND QUARTER 2003) .................................................... 8-1 WORK PERFORMED THIS QUARTER (SECOND QUARTER 2003) .............................. 9-1 WORK PROPOSED FOR NEXT QUARTER (THIRD QUARTER 2003) ....................... 10-1 REFERENCES ............................................................................................................. 11-1 H:\Projects\S H ELL\Bakersfi eld~inal\077-030\Report03.doc SHELL OIL PRODUCTS U.S. SECOND QUARTER 2003 GROUNDWATER MONITORING REPORT AUGUST 13, 2003 Facility Location: Facility Contact: Primary Consultant/Contact Person Lead Regulatory Agency Lead Regulatory Agency Contact: 6451 Rosedale Highway, Bakersfield, Ca 93308 Steve Overman (661) 326-4351 TriHydro Corporation / Linda Barnes (307) 745-7474 Regional Water Quality Control Board - Central Valley Region, Fresno Office Mr. Anthony Medrano (559) 488-4395 SECTION 1.0 GROUNDWATER MONITORING SUMMARY (SECOND QUARTER 2003) Current Project Phase: Frequency of Monitoring/Sampling: Groundwater Investigation, Interim Remediation, Ongoing Remediation (Refinery VES, Groundwater Extraction and Treatment, and Air Sparge Systems), Groundwater Monitodn9 Quarterly (225 wells) Depth to Groundwater Range in Second Quarter of 2003 (Refinery Areas I and 2): Groundwater Gradient: Groundwater Gradient Consistent with Previous Quarter: MTBE Concentration Range: Well with Highest MTBE Concentration: Benzene Concentration Range: Well with Highest Benzene Concentration TPHG Concentration Range: Well with Highest TPHG Concentration: Separate Phase Hydrocarbon Thickness Range: Wells with Separate Phase Hydrocarbons Present Water Supply Wells within 2,000 feet of the Site: Surface Water within 2,000 feet of the Site: Remediation Techniques: Separate Phase Hydrocarbons recovered in 1st Quarter 2003: Agency Directives: 65.89' - 112.04' bgs (On average, groundwater table dropped approximately 0.7 feet in the second quarter 2003) 0.0107 ft/ft westerly to northwesterly in the <110' bgs zone 0.0081 ft/ft westerly to northwesterly in the 110'- 140' bgs zone 0.0082 ft/ft wested¥ in the >140' bgs zone Gradient slightly shallower in 110' - 140' bgs zone, subsurface groundwater flow direction unchanged <1 - 20,000 ug/L B-181U <0.5 - 6,100 ug/L B-175M <100 - 210,000 ug/L B-175L 0.15 - 2.72 feet B-012, B-109L, B-109M D-l, D-2, D-3, D-4, D-5, D-6, D-7, I-1, I-2, I-3, I-4, I-5, I-6, I- 7, I-8, I-9, 1-10, 1-11, 1-12, 1-13, 1-14, 1-15, 1-16, P-31 Calloway Canal (dry) 500' northwest of Area 1 Refinery, 1,500' northwest of Area 2 Refine~ Soil Vapor Extraction, Groundwater Extraction and Treatment, and Air Sparging 52 barrels (2,188 gallons)from the refinery VES system None 1-1 H:\Projects\SH ELL\Be kersfield\Final\077-O30'~Report03,doc SECTION 2.0 DATA SUBMITTAL (ATTACHED) Figures 1 2 3 4 5 7 8 9 10 11 12 13 14 15 Site Vicinity Map Site Plan Potentiometric Map for Groundwater <110' bgs, May 2003 Potentiometric Map for Groundwater 110'- 140' bgs, May 2003 Potentiometric Map for Groundwater >140' bgs, May 2003 MTBE Plume Contours for Groundwater <110' bgs, May 2003 MTBE Plume Contours for Groundwater 110' - 140' bgs, May 2003 MTBE Plume Contours for Groundwater >140' bgs, May 2003 MTBE Results for Nearby Water Supply Wells, May 2003 Benzene Plume Contours for Groundwater <110' bgs, May 2003 Benzene Plume Contours for Groundwater 110'- 140' bgs, May 2003 Benzene Plume Contours for Groundwater >140' bgs, May 2003 Benzene Results for Nearby Water Supply Wells, May 2003 Air Sparging Well Locations Potentiometric Map for Groundwater and Groundwater Analytical Results- Area 3 Tables 1 2a 2b 3 2nd Quarter 2003 - Groundwater Levels, Shell Oil Products U.S. 2"d Quarter 2003 - Monitoring Well Analytical Results, Shell Oil Products U.S. 2°d Quarter 2003 - Water Supply Well Analytical Results, Shell Oil Products U.S. 2nd Quarter 2003 - Quality Assurance Results, Shell Oil Products U.S. Appendices A Field Data Sheets B Laboratory Analytical Reports H :\Projects\S H ELL\Bakersfield\Final\O77-O30'~epor~O3.doc 2-1 SECTION 3.0 FACILITY DESCRIPTION Shell Oil Products U.S. (SOPUS) has owned and operated the facility now known as the Shell Bakersfield Refinery since October 2001. The Shell Bakersfield Refinery consists of three interconnected operating areas known as Areas 1, 2, and 3. Area 1 was built in 1932 by the Mohawk Oil Company (1932 to 1970) and was subsequently owned by Reserve Oil and Gas Company (1970 through 1980), Getty Oil Company (1980 through 1984), Texaco (1984 through 1998), and Equilon Enterprises LLC (1998 through 2001). The adjacent Area 2 was built by the US Government in 1942 and was subsequently owned by Lion Oil Company, Tosco Oil Company, Texaco (1986 through 1998), and Equilon Enterprises LLC (1998 through 2001). Shell Bakersfield Refinery Areas 1 and 2 encompass approximately 599 acres of land located in the city of Bakersfield, Kern County, California (the Site, Figure 1). Area 3 was built and operated by the Independent Valley Energy Company (1978 to 1987) and was subsequently owned by Texaco (1987 to 1998) and Equilon Enterprises LLC (1998 to 2001). Area 3 is located approximately 1.5 miles northeast of Area 1 and encompasses approximately 357 additional acres of land. The Shell Bakersfield Refinery currently processes about 70,000 barrels of crude oil per day into products such as automotive gasoline, diesel fuel, petroleum coke, fuel oils, liquefied petroleum gas, asphalt, and sulfur. A site plan showing the Site and adjacent properties is included as Figure 2. H :\Projects\SH ELL~akersfi eld~inal\077-030\Repo,'103.doc 3-1 SECTION 4.0 GEOLOGIC AND HYDROGEOLOGIC SETTING The Site is located at an elevation of approximately 390 feet above mean sea level (msl) and is underlain by approximately 200 feet of late Pleistocene and Recent alluvial sands and gravel (deposited primarily by the Kern River). The Kern River alluvial fan is a large wedge of sand and gravel on the east side of the valley that forms where the Kern River exits the Sierra Nevada foothills. Alluvial fan deposition is the geologic response to the change in slope and to the transition from confined to unconfined flow (Dale, 1966). Water runoff from the Sierras flows from the northeast to the southwest down the bed of the Kern River onto the alluvial fan, where water slowly seeps from the river bottom into the distant margins of the fan. Elk Hills, which represents the surface expression of a subsurface anticline, then diverts the subsurface flow southward towards Buena Vista Lake (Dale, 1966). The near-surface aquifer is made up of Pleistocene to Recent sands and gravel. These sediments cut into older alluvial fan and lacustrine sediments of the Plio-Pleistocene Tulare Formation. An angular unconformity then separates the continental sediments from underlying marine deposits of.the Pliocene San Joaquin Formation (Bertoldi, 1991). Studies of the Site and surrounding area indicate that the upper 100 feet of sediments consist primarily of interbedded sands and silts (with minor clay) deposited as the outwash plain of the Kern River. Because of the nature of braided stream deposition, correlation of distinct stratigraphic horizons is difficUlt and may vary across the Site and vicinity. For monitoring purposes, the site stratigraphy has been divided into three distinct horizons: Depth of less than 110 feet below ground surface (bgs) (Shallow Zone); Depth of 110 feet to 140 feet bgs (Intermediate Zone); and Depth of greater than 140 feet bgs (Deep Zone). The aquitards that separate these horizons are well defined and relatively uniform across the Site. Although there may be two or more coarse-grained strata present within any of these horizons, each individual monitoring well is typically screened across only one stratum. The shallowest groundwater in the site vicinity is generally unconfined, with confined conditions occurring locally. The water table elevation has fluctuated by tens of feet per year in response to changes in regional groundwater recharge and pumping conditions. There was approximately 100 feet of water table rise between 1993 and 1999. Since 1999, the water table has been decreasing in elevation and dropped by more than one foot per month during 2001, with an average elevation decrease of approximately 0.57 foot per month in 2002. The water table rose approximately 2.3 feet across the site in the first quarter of 2003, and dropped approximately 0.7 feet across the site in the second quarter of 2003. The current average depth to water is approximately 79 feet bgs. H:\Projects\SHELL\Bakersfield\Final\077-030\Report 03.doc 4-1 Static groundwater levels were measured in groundwater monitoring wells on May 12 and 13, 2003. A summary of groundwater depths and elevations obtained at the site is presented in Table 1. The depth to groundwater beneath the site (Areas 1 and 2) ranged from 65.89 feet bgs in well B-106M to 112.04 feet bgs in well B-131L2. Groundwater elevations calculated from the May 2003 groundwater measurements indicated a direction of subsurface flow to the west/northwest with an approximate hydraulic gradient of 0.0085 foot per foot (ft/ft) in the Shallow Zone, 0.0081 ft/ft in the Intermediate Zone, and 0.0082 ft/ft in the Deep Zone. Field data sheets for the second quarter 2003 groundwater sampling event are included in Appendix A. Potentiometric maps for groundwater less than 110 feet bgs, between 110 and 140 feet bgs, and deeper than 140 feet bgs, are included as Figures 3 through 5, respectively. A potentiometric map for Area 3 groundwater monitoring wells A3-01 through A3-04 is included as Figure 15 H:\Projects\SH ELL\Bakersfield~Final\077-030',Report03,d oc 4-2 SECTION 5.0 DISTRIBUTION OF PETROLEUM CONSTITUENTS 5.1 Identification of Source Areas Two source areas for methyl ted-butyl ether (MTBE)-affected groundwater have been identified at the Site. One source area is located at the Sales Terminal (hereinafter referred to as the "Terminal"), along the southwest corner of Fruitvale Avenue and Rosedale Highway. The second source area (Blending Area) is located near the eastern property line within the Refinery, near the railcar-loading area in Area 1. Figure 2 shows the locations of these two source areas. A release of petroleum hydrocarbons containing MTBE first occurred from the Terminal's underground product lines in March 1999. Subsequent releases occurred in December 2000 and April 2001. A soil vapor extraction system (VES) was installed and is currently operating within the Terminal's source area. Groundwater extraction wells were installed in the central and down-gradient portions of the Terminal's MTBE plume to provide down-gradient and vertical hydraulic containment of the dissolved-phase MTBE plume. Two IRM treatment systems, IRM- 1 and IRM-2, are utilized to treat the extracted groundwater prior to its discharge into the Calloway Canal, under a NPDES permit. An air sparging system has been in operation down-gradient of the Blending Area's MTBE source since 1995. The refinery VES system was expanded into the Blending Area's MTBE source area (near monitoring well B-116) and became operational on June 2, 2003. A reformate release identified in 1987, in the vicinity of the Area 2 Refinery's hydrocracker, is currently being remediated using a system of 44 vapor extraction wells and 48 air sparge wells. Details regarding operation of the air sparging, groundwater extraction, and VES systems are included in Section 6.0. 5.2 MTBE Plume Distribution In Groundwater Extensive subsurface investigation has delineated the Terminal's dissolved-phase MTBE plume as being approximately 2,600 feet long and up to 600 feet wide in the Shallow Zone (<110 feet bgs). MTBE was not detected above laboratory method detection limits of 1 microgram per liter (ug/L) in the Terminal ,plume's Intermediate and Deep Zone groundwater monitoring wells during the second quarter 2003 quarterly sampling event, with the exception of Iow concentrations of MTBE detected in Intermediate Zone wells B-126M (2.7 ug/L), B-170L (1.3 ug/L), B-128M (2.7 ug/L) and B-176U (11 ug/L). Subsurface investigation activities have delineated the Blending Area's dissolved-phase MTBE plume as being a maximum of 2,000 feet long and up to 600 feet wide in the Shallow Zone, 1,200 feet long and up to 600 feet wide in the Intermediate Zone, and 3,000 feet long and up to H:\Projects\SH ELL\Ba kersfi eld\Final~077-030'~=,eport03.doc 5-1 900 feet wide in the Deep Zone during the second quarter 2003 quarterly groundwater sampling event. Both the Terminal and Blending Area's dissolved-phase MTBE plumes trend in an east to west direction, following the local groundwater gradient (accentuated by groundwater extraction in the case of the Terminal plume), with limited north-south expansion over time. No appreciable eastward migration (up-gradient) of the dissolved-phase MTBE plumes has been observed. Second quarter 2003 MTBE plume isoconcentration contour maps for groundwater less than 110 feet bgs, between 110 and 140 feet bgs, and greater than 140 feet bgs, are included as Figures 6 through 8. Second quarter 2003 MTBE analytical results for nearby water supply wells are shown on Figure 9. Note that MTBE was not detected (detection limit of 1 pg/L) in any of the water supply wells. 5.3 Benzene Plume Distribution in Groundwater Dissolved-phase benzene plumes are located in the Blending Area and the northwestern portions of the Area 2 Refinery. During the May 2003 quarterly groundwater monitoring event, the Blending Area dissolved-phase benzene plume was a maximum of 350 feet long and up to 700 feet wide in the Shallow Zone, 250 feet long and up to 150 feet wide in the Intermediate Zone, and 1,600 feet long and up to 700 feet wide in the Deep Zone. During the second quarter of 2003, the Area 2 Refinery's dissolved-phase benzene plume was a maximum of 2,500 feet long and up to 1,800 feet wide in the Shallow Zone, 3,400 feet long and up to 1,500 feet wide in the Intermediate Zone, and 3,100 feet long and up to 1,000 feet wide in the Deep Zone. Both the Blending and Refinery 2 Area's dissolved-phase benzene plumes trend in an east to west direction. The down-gradient portions of the Refinery 2 Area's Shallow and Intermediate Zone plumes exhibit some lateral (north and south) migration of dissolved-phase benzene. No appreciable eastward migration (upgradient) of the dissolved-phase benzene plumes has been observed. Second quarter 2003 benzene plume isoconcentration contour maps for groundwater less than 110 feet bgs, between 110 and 140 feet bgs, and greater than 140 feet bgs, are included as Figures 10 through 12. Second quarter 2003 benzene analytical results for nearby water supply wells are shown on Figure 13. Note that benzene was not detected (detection limit of 0.5 pg/L) in any of the water supply wells. Monitoring well and water supply well groundwater analytical results for the second quarter 2003 groundwater sampling event are summarized in Tables 2a and 2b, respectively. Laboratory reports and chain-of-custody documentation are included in Appendix B. A site plan showing sample results for Area 3 wells A3-01 through A3-04 is included as Figure 15. H:~Projects\SHELL\Bakersfl elCFinal\0?7-030\Report03.doc 5-2 SECTION 6.0 CONCEPTUAL PLAN FOR GROUNDWATER REMEDY The first stage of the groundwater remedy was to identify and eliminate receptor pathways. Five off-site water supply wells were identified as potential future receptors due to their proximity to the dissolved MTBE plume. Four of the wells (EPC, Gaslight, Simpson, and IP) have been destroyed. The remaining supply well GD, on the Caza Drilling property is not operating. Other off-site supply wells in the site vicinity are north of the Calloway Canal. The dominant groundwater flow direction is to the west, parallel to the Calloway Canal, and sampling results indicate that dissolved MTBE above 1.0 ug/L does not extend north of the canal. Four on-site supply wells provide water to the refinery. All wells are screened at depths greater than 500 feet and are separated from the strata of MTBE-affected groundwater by a regional aquitard that begins at a depth of approximately 250 feet bgs. The refinery's four on-site water production wells are utilized as a source of process water. The use of two of the wells as a source of potable water for the refinery was discontinued on June 22, 2002, when the potable water distribution systems for Areas 1 and 2 of the refinery were connected to a municipal water supply. Area 3 of the refinery utilizes municipal water for process and potable uses. The MTBE plume originating at the Terminal is contained through operation of a groundwater extraction system. The effectiveness of the hydraulic containment system is provided through the following: 1) extraction from the leading (down-gradient) edge of the plume, 2) extraction from additional wells as necessary to provide capture of the full width of the dissolved plume, 3) extraction from enough locations along the length of the plume to ensure hydraulic containment under conditions of shifting groundwater flow, and 4) extraction from sufficient depth to capture the vertical extent of the dissolved plume. The hydraulic containment system has been designed with enough flexibility to accommodate the anticipated fluctuations in water table elevation. In anticipation of dropping water levels, groundwater extraction wells have been completed in both the Shallow Zone, at a depth of approximately 80 to 110 feet (currently the primary interval containing dissolved-phase MTBE), and the Intermediate Zone, at a depth of approximately 110 to 140 feet. Extraction from the Intermediate Zone will be a precaution against MTBE bypassing the containment system as the water table drops. Shallow extraction wells that go dry will be temporarily capped and preserved for possible later use in the event that the water table rises in future years. IRM-1 consists of seven extraction wells (EW-3, 4, 5, 6, 7, 12, and 13) located 50 to 200 feet south of the Calloway Canal,. approximately 450 feet west of the Charity Avenue cul-de-sac. IRM-1 was constructed to provide hydraulic containment at the down-gradient, leading edge of the Terminal dissolved-phase MTBE plume. Treated water from IRM-1 currently discharges to the Calloway Canal. During the second quarter 2003, the average discharge rate was 84.2 gallons per minute (gpm) or approximately 121,248 gallons per day (gpd). Influent MTBE concentrations for the IRM-1 extraction wells ranged from less than 1.0 pglL to 30 pglL during the second quarter of 2003. IRM-2 consists of one extraction well (EW-8) north of Charity Avenue and four extraction wells (EW-9, 10, 11, and B-149) south of Charity Avenue. Treated water from IRM-2 also discharges to the Calloway Canal. During the second quarter 2003, the average discharge rate was 98.3 H:\Projects\SHELL\Bakersfield\Final\077-030'tRepod03,doc 6-1 gpm or approximately 141,552 gpd. Influent MTBE concentrations for IRM-2 extraction wells ranged from less than 1.0 #glL to 13,000 pglL during the second quarter of 2003. Both IRM-1 and IRM-2 were fully operational during the second quarter of 2003 and operated in accordance with the guidelines provided by Shell Global Solutions Westhollow Technology Center personnel. The average effluent flow from IRM-1 was 86.7, 84.6, and 81.5 gpm for April, May, and June 2003, respectively. The average effluent flow from IRM-2 was 99.4, 90.7, and 105 gpm for April, May, and June 2003, respectively. The groundWater treatment technology is a biologically augmented, granulated active carbon system (BioGAC). The BioGAC system utilizes a standard carbon treatment system inoculated with a naturally occurring, MTBE-degrading bacteria that has been isolated and patented by Shell Global Solutions. The BioGAC treatment technology is currently utilized for both the IRM- I and IRM-2 extraction systems. As a precaution, the process streams from the treatment plants are run through a standard GAC unit before being discharged. Petroleum hydrocarbon-affected soil vapor is currently being removed from the source area at the Terminal by means of the refinery VES system. The VES well extraction and operating system is consistently being modified to increase mass removal rates and to take advantage of the dropping water levels, addressing residual and flee-phase product from progressively deeper strata as the water table continues to drop. The existing VES treatment system has sufficient capacity to accommodate increased extraction rates in the vicinity of the Terminal. Significant effort has been expended at the Terminal to prevent future releases of product to the subsurface. A series of five underground, pressurized product lines that lead from the Refinery to the Terminal have been replaced with above ground lines. This modification should minimize the potential for future releases of the type contributing to the Terminal source area. The Blending Area MTBE plume is being contained by enhanced bioremediation through the use of the air sparge system. Historical MTBE concentrations show that the Blending Area MTBE plume is stable and should not affect offsite receptors. In addition, the refinery installed a vapor extraction well in the Blending Area to supplement remedial activities in this area. The well became operational on June 2, 2003. In areas of favorable geochemical conditions, aerobic microbial populations are capable of degrading MTBE. Preliminary studies conducted by Shell Global Solutions Westhollow Technology Center indicate indigenous MTBE,degraders are present at the site, however the rate of biodegradation is relatively slow. In areas within and down-gradient of a product release, groundwater is typically depleted of oxygen. The addition of oxygen to the groundwater system (e.g. through air sparging) is expected to stimulate microbial growth and associated MTBE biodegradation. Air sparging well locations are shown on Figure 14. H:~Projects\SHELl~Bakersfield~Final\077-030~Report03.doc 6-2 SECTION 7.0 TREATMENT SYSTEM OPERATION SUMMARY (SECOND QUARTER 2003) The VES system recorded an online operating time of approximately 74.5% for the second quarter of 2003. System downtime in the second quarter was primarily related to a cooling tower level switch failure and parts replacement/system maintenance. The VES system removed approximately 52 barrels (2,188 gallons) of product during the second quarter of 2003. The refinery-wide air sparge system operated continuously during the second quarter of 2003. The refinery-wide system now consists of 46 well clusters. Five well clusters were temporarily shut down on June 26, 2003 (at the request of Shell personnel) to investigate and repair a water line leak in the area. The five clusters were returned to service on July 8, 2003. Three wells were temporarily shut down on April 6, 2003 due to the presence of a hole in B-89M's manifold piping. The wells were returned to service on April 10, 2003 after repairs were completed. Three shallow zone air sparge wells were shut down in April 2003 due to a drop in the water table. Both IRM-1 and IRM-2 were fully operational during the second quarter of 2003 and operated in accordance with the guidelines provided by Westhollow personnel. The average effluent flow from IRM-1 was 86.7, 84.6, and 81.5 gpm for April, May, and June 2003, respectively. The average effluent flow from IRM-2 was 99.4, 90.7, and 105 gpm for April, May, and June 2003, respectively. H:\Projects\SH E LL\Bakersfield\Final\077-030'~Report03.doc 7-1 SECTION 8.0 DATA QUALITY REVIEW (SECOND QUARTER 2003) Thirteen equipment blanks and two field blanks were-analyzed in the second quarter 2003 groundwater sampling event. Gasoline range petroleum hydrocarbons and aromatic volatiles (including MTBE) were not detected in the equipment blank and field blank samples above laboratory analytical method detection limits. One sample contained p/m xylenes at an estimated concentration that was below the reporting limit. MS/MSD results for all compounds were generally within control parameters. One sample analysis (out of 83 samples total) for TBA was out of control parameters due to matrix interference. The corresponding LCS/LCD results were within control parameters. LCS/LCSD results for all compounds were generally within control parameters. Second quarter 2003 groundwater quality assurance results are summarized in Table 3. Laboratory analytical results and chain-of-custody documentation for groundwater quality assurance samples are included in Appendix B. H:\Projects~SH ELL~Bakersfiela~Final\077-O30~Report03.doc 8-1 SECTION 9.0 WORK PERFORMED THIS QUARTER (SECOND QUARTER 2003) Operated and maintained the air sparge', VES, and IRM systems at the Site; Submittal of "First Quarter. 2003 Groundwater Monitoring Report"; Submittal of "First Quarter 2003 NPDES Monitoring Report"; Manifolded the Blending Area VES well to the VES system .and began vapor extraction from the well on June 2, 2003; A 10-inch valve for the cooling water pump discharge on the VES was replaced; and Installed degassing wells and conducted a limited soil assessment in the Area 3 Refinery's Delayed Coking Unit. H:~Projects\SHE LL\Bakersfleld~Final\077-030~::~eport03.d oc 9-1 SECTION .10.0 WORK PROPOSED FOR NEXT QUARTER (THIRD QUARTER 2003) Routine operation and maintenance of air sparge, VES, and IRM systems at the site; Perform third quarter 2003 groundwater gauging and sampling event; Submittal of a report detailing the installation of soil degassing wells and limited soil assessment in the Area 3 Refinery's Delayed Coking Unit; and Submittal of the Second Quarter 2003 NPDES and Groundwater Monitoring Reports. H:\Projects\SH ELL\Ba kersfield\Final\077-030'~Report03.doc 10-1 SECTION 11.0 REFERENCES Dale, R.H., French, J.J., and Gordon, G.V., 1966, Ground-water Geology and HydrologY of the Kern River AIluviaI-Fan Area, California: United States Geological Survey. Bertoldi, G.L., Johnston, R.H., and Evenson, K.D., 1991, Ground Water in the Central Valley, California -A Summary Report: United States Geological Survey, Professional Paper 1401-A. H :\Projects\SH ELL\Bakersfl eld\Final\077-030~'~eport03.doc 11-1 TABLES H:\Projects\SH ELL\Bakersfield\Final\077-030~Report03.doc Well ID Measurement Date Time T~I 2nd Quarter - tndwater Levels Shell Oil Products U. S. Elevation Depth to Product Depth to Water (ft MSL) Product (ft) Thickness (ft) (ft) Piezometric Elevation (ft MSL) Screen Interval (ft bgs) Start Depth End Depth A3-01 A3-02 A3-03 A3-04 B-001L B-001M B-001U B-003 B-007 B-008 B-009 B-010 B-011 B-012 B-013 B-014 B-017 B-023 B-024L B-024U B-030L B-030M B-030U B-041L B-041M B-041U B-042 B-043 B-044L B-044M B-044U B-050L B-050M B-050U B-052L B-052M B-052U B-075L (2) 05/13/2003 9:04 400.53 ...... 43.89 05/13/2003 9:34 394.89 ...... 62.24 05/13/2003 10:11 399.62 ...... 56.89 05/13/2003 10:17 399.01 ...... 48.71 05/12/2003 2:14 388.35 ...... 95.86 05/12/2003 2:17 390.40 ...... 90.37 05/12/2003 2:19 390.38 ...... Dry 05/12/2003 2:29 388.74 ...... 92.53 05/12/2003 11:00 ' 383.60 ...... 107.18 05/12/2003 2:09 388.27 ...... 100.39 05/12/2003 2:53 380.77 ...... 97.54 05/12/2003 11:52 383.10 ...... 109.77 05/12/2003 1:23 387.53 ...... 105.48 05/12/2003 12:35 388.47 86.26 2.72 88.98 05/12/2003 1:20 386.34 ...... 106.05 05/12/2003 10:46 385.21 ...... 97.57 05/12/2003 11:20 383.53 ...... 108.32 05/12/2003 3:15 383.08 ...... 86.54 05/12/2003 12:02 384.45 ...... 108.06 05/12/2003 12:04 384.45 ...... 83.50 05/12/2003 2:03 388.08 ...... 95.72 05/12/2003 2:05 388.08 ...... 93.38 05/13/2003 7:56 388.08 ...... Dry 05/12/2003 2:19 382.37 ...... 86.84 05/12/2003 2:21 382.37 ...... 84.60 05/12/2003 2:23 382.37 ...... 84.91 05/12/2003 11:51 389.86 ...... 78.48 05/12/2003 12:46 390.79 ...... 90.27 05/12/2003 3:05 388.40 ...... 89.58 05/12/2003 3:01 388.40 ...... 89.57 05/12/2003 3:07 388.40 ...... Dry 05/12/2003 2:34 390.62 ...... 85.53 05/12/2003 2:37 390.37 ...... 85.41 05/12/2003 2:39 390.98 ...... Dry 05/12/2003 10:21 388.00 ...... 98.66 05/12/2003 10:23 388.00 ...... 97.13 05/12/2003 10:25 388.00 ...... 97.59 05/12/2003 2:49 384.35 ...... 75.82 356.64 28.00 48.00 332.65 46.00 66.00 342.73 44.00 64.00 350.30 35.00 55.00 292.49 145.00 200.00 300.03 100.00 140.00 --- 30.00 90.00 296.21 140.00 180.00 276.42 140.00 180.00 287.88 143.00 183.00 283.23 143.00 183.00 273.33 150.00 190.00 282.05 155.00 195.00 299.49 144.36 184.36 280.29 174.00 194.00 287.64 140.00 180.00 275.21 180.00 200.00 296.54 136.00 176.00 276.39 162.70 182.70 300.95 120.00 150.00 292.36 129.50 160.00 294.70 101.50 122.00 --- 74.50 95.00 295.53 129.61 149.61 297.77 101.73 121.73 297.46 73.82 93.82 311.38 114.56 154.56 300.52 130.00 170.00 298.82 115.00 135.00 298.83 88.00 108.00 -- 63.00 83.00 305.09 114.00 134.00 304.96 86.00 106.00 -- 61.00 81.00 289.34 135.00 175.00 290.87 108.00 128.00 290.41 83.00 103.00 308.53 131.00 150.00 Table 1 2nd Quarter - ~andwater Levels Shell Oil Products U. S. Well ID B-075M B-075U (2) B-098L B-098M B-098U B-099L B-099M B-099U B-100L B-100M B-100U B-103L B-103M B-103U B~104L B-104M B-104U B-105L B-105M B-106L B-106M B-107L B-107M B-108L B-108M B-109L B-109M B-110L B-110M B-111L B-111M B-114L B-114M B-114U B-115L B-I15M B-115U Measurement Elevation Depth to Product Date Time (ft MSL) Product (ft) Thickness (ft) 05/12/2003 2:51 384.35 --- 05/12/2003 2:53 384.35 --- 05/12/2003 4:11 384.79 --- 05/12/2003 4:14 384.79 --- 05/12/2003 4:17 384.79 --- 05/12/2003 1:44 385.35 --- 05/12/2003 1:46 385.35 --- 05/12/2003 1:48 385.35 --- 05/12/2003 11:07 384.91 --- 05/12/2003 11:09 384.91 --- 05/12/2003 11:11 384.91 --- 05/12/2003 10:52 383.73 --- 05/12/2003 10:55 383.73 -~- 05/12/2003 10:57 383.73 --- 05/12/2003 11:29 385.26 --- 05/12/2003 11:37 385.26 --- 05/12/2003 11:40 385.26 --- 05/12/2003 11:34 387.58 --- 05/12/2003 11:36 387.58 --- 05/12/2003 11:24 386.23 --- 05/12/2003 11:27 386.23 --- 05/13/2003 9:07 390.51 --- 05/13/2003 9:08 390.51 --- 05/12/2003 11:41 388.61 --- 05/12/2003 11:43 388.61 --- 05/12/2003 3:39 389.11 74.54 05/12/2003 3:42 389.11 72.30 05/12/2003 10:24 392.49 --- 05/12/2003 10:28 392.47 --- 05/12/2003 2:47 381.34 --- 05/12/2003 2:49 381.34 --- 05/12/2003 10:32 387.19 --- 05/12/2003 10:34 387.19 --- 05/12/2003 10:36 387.19 --- 05/12/2003 10:11 387.38 --- 05/12/2003 10:13 387.38 --- 05/12/2003 10:15 387.38 --- Piezometric Depth to Water Elevation (ft) (R MSL) --- 79.75 304.60 --- 79.50 305.29 --- 78.38 306.41 --- 78.36 306.43 --- 95.96 289.39 --- 95.13 290.22 --- Dry -- --- 92.21 292.70 --- 92.43 292.48 --- Dry --- --- 91.99 291.74 --- 92.09 291.64 --- Dry --- 88.57 296.69 --- 86.74 298.52 --- Dry --- --- 68.61 318.97 --- 66.33 321.25 --- 66.89 319.34 --- 65.89 320.34 --- 70.49 320.02 --- 69.40 321.11 --- 73.07 315.54' --- 70.62 317.99 0.22 74.76 314.35 0.15 72.45 316.66 --- 71.54 320.95 --- 71.33 321.14 --- 75.60 305.74 --- 75.12 306.22 --- 95.03 292.16 --- 95.20 291.99 --- Dry --- --- 97.03 290.35 --- 96.31 291.07 --- Dry -- Screen Interval (ft bgs) Start Depth End Depth 105.00 125.00 78.00 100.00 109.81 140.00 79.82 109.82 49.83 79.83 110.00 140.00 80.25 110.25 50.00 80.00 110.00 140.00 80.25 110.25 50.00 80.00 110.00 140.00 80.25 110.25 50.00 80.00 110.00 140.00 80.25 110.25 50.00 80.00 95.00 125.00 65.00 95.00 110.00 140.00 80.00 110.00 110.00 140.00 80.00 110.00 110.00 140.00 80.00 110.00 110.00 140.00 78.00 108.00 110.00 140.00 80.00 110.00 100.00 130.00 70.00 100.00 120.00 150.00 85.00 115.00 40.00 80.00 120.00 150.00 85.00 115.00 40.00 80.00 T~el 2nd Quarter - lndwater Levels Shell Oil Products U. S. Well ID B-116L B-116M B-I17L B-II7M B-118L B-118M B-119L B-119M B-120L B-120M B-121M B-124L B-124M B-124U B-125L B-125M B-125U B-126L B-126M B-126U B-127L B-127M B-127U B-128L B-128M B-128U B-129L1 B-129L2 B-129M B-129U B-130L1 B-130L2 B-130M B-130U B-131L1 B-131L2 B-131M B-131U Measurement Date 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 05/12/2003 Time 3:47 3:49 3:43 3:45 3:47 3:50 10:28 10:30 10:42 10:44 10:37 2:51 2:54 2:56 11:29 11:32 11:35 1:42 1:45 1:47 11:10 11:12 11:14 2:10 2:14 2:17 11:17 11:14 11:19 11:21 11:06 11:03 11:08 11:10 10:58 10:55 11:01 11:03 Elevation (fi MSL) 389.46 389.49 393.32 393.34 393.06 392.99 389.46 389.56 388.74 388.76 390.88 390.20 390.16 389.96 391.32 391.36 391.47 389.16 389.33 389.47 392.55 392.61 392.62 395.85 395.90 395.96 391.50 391.31 391.67 391.85 392.04 392.29 391.91 391.86 391.17 391.13 391.32 391.31 Depth to Product Product (ft) Thickness (ft) Piezometric Depth toWater Elevation (aMSL) 75.26 314.20 73.13 316.36 80.55 312.77 78.90 314.44 78.25 314.81 76.61 316.38 75.63 313.83 74.28 315.28 82.87 305.87 79.96 308.80 81.12 309.76 96.27 293.93 91.43 298.73 Dry --- 105.72 285.60 100.43 290.93 Dry --- 100.32 288.84 97.62 291.71 Dry --- 101.76 290.79 99.12 293.49 Dry --- 95.67 300.18 93.93 301.97 Dry --- 107.57 283.93 107.93 283.38 102.85 288.82 Dry --- 109.84 282.20 110.19 282.10 104.42 287.49 Dry -- 111.78 279.39 112.04 279.09 104.15 287.17 Dry --- Screen Interval (ft bgs) Start Depth End Depth 165.00 175.00 100.00 110.00 165.00 175.00 100.00 110.00 165.00 175.00 100.00 110.00 163.00 173.00 100.00 110.00 165.00 175.00 100.00 II0.00 100.00 135.00 160.00 200.00 120.00 140.00 30.00 90.00 160.00 185.00 125.00 150.00 30.00 70.00 160.00 180.00 llO.O0 140.00 30.00 80.00 160.00 185.00 115.00 140.00 30.00 80.00 162.00 182.00 110.00 140.00 30.00 70.00 180.00 200.00 235.00 245.00 120.00 145.00 30.00 90.00 180.00 200.00 235.00 245.00 125.00 145.00 30.00 90.00 190.00 210.00 243.00 253.00 120.00 145.00 30.00 85.00 Well II) B-133 B-134 B-143 B-144 B-145 B-146 B-150M B-153 B-154 B-155 B-156 B-157 B-158 B-159 B-160M B-160U B-161M B-161U B-162M B-162U B-163M B-163U B-164L B-164M B - 164U B-166L B-166M B-166U B-167L B-167M B-167U B-168L B-168M B-169L B-169M B- 169U B-170L B-170M Measurement Date Time 05/12/2003 10:58 393.06 05/12/2003 12:04 392.87 05/13/2003 7:51 389.27 05/12/2003 1:15 390.30 05/12/2003 1 .'54 391.69 05/12/2003 2:07 393.21 05/12/2003 2:24 388.94 05/13/2003 8:55 391.07 05/13/2003 9:00 391.76 05/12/2003 1:25 390.31 05/12/2003 2:25 390.91 05/12/2003 1:15 392.42 05/12/2003 1:37 392.15 05/12/2003 12:53 390.31 05/12/2003 3:49 393.96 05/12/2003 3:52 393.88 05/12/2003 4:01 393.08 05/12/2003 4:04 392.95 05/12/2003 11:47 398.25 05/12/2003 11:50 398.37 05/12/2003 11:26 398.07 05/12/2003 11:28 398.01 05/12/2003 11:57 398.71 05/12/2003 11:35 398.81 05/12/2003 11:37 398.96 05/12/2003 11:41 390.04 05/12/2003 11:43 390.11 05/12/2003 11:45 390.30 05/12/2003 12:20 391.59 05/12/2003 12:23 391.67 05/12/2003 12:26 391.75 05/12/2003 10:45 389.77 05/12/2003 10:48 389.78 05/12/2003 10:27 391.41 05/12/2003 10:38 391.47 05/12/2003 10:40 391..56 05/12/2003 1:52 389.75 05/12/2003 1:55 389.86 Table 1 2nd Quarter - ndwater Levels Shell Oil Products U. S. Elevation Depth to (ft MSL) Product (ft) Product Thickness (ft) Screen Interval (ft bgs) Piezometric Depth to Water Elevation (ft) (ft MSL) Start Depth End Depth Dry -- 30.00 90.00 Dry --- 30.00 90.00 Dry -- 40.00 75.00 Dry -- 40.00 75.00 Dry -- 40.00 75.00 Dry --- 40.00 75.00 88.59 300.35 90.00 110.00 Dry -- 35.00 75.00 Dry -- 35.00 75.00 Dry -- 34.00 74.00 Dry -- 35.00 75.00 Dry -- 35.00 75.00 --- Dry --- 35.00 75.00 --- Dry -- 35.00 75.00 --- 92.15 301.81 90.00 105.00 --- Dry -~ 60.00 80.00 --- 97.32 295.76 110.00 120.00 --- Dry ~-- 75.00 85.00 --- 100.13 298.12 115.00 125.00 ~-- Dry -- 80.00 100.00 --- 102.63 295.44 116.00 126.00 --- Dry --- 68.00 88.00 --- 101.40 297.31 114.00 134.00 --- 100.74 298.07 89.50 104.00 --- Dry --- 64.00 84.00 --- 106.51 283.53 170.00 185.00 --- 103.15 286.96 120.00 140.00 --- Dry -- 70.00 95.00 --- 108.43 283.16 160.00 180.00 --- 106.19 285.48 120.00 140.00 --- Dry --- 70.00 105.00 --- 104.91 284.86 160.00 180.00 --- 101.77 288.01 118.00 138.00 --- 103.56 287.85 150.00 170.00 --- 101.44 290.03 120.00 140.00 --- 101.34 290.22 90.00 110.00 --- 99.21 290.54 125.00 140.00 --- 98.78 291.08 108.00 118.00 T~e 1 2nd Quarter - ll~hndwater Levels Shell Oil Products U. S. Well ID B-170U B-171L B-171M B-171U B-172L B-172M B-172U B-173L B-173M B-173U B-175L B-175M B-175U B-176L B-176M B-176U B-177L B-177M B-177U B-178M B-178U B~179M B-179U B-180L B-180M B- 180U B-181L B-181M B-181U B-182M B-182U B_183(3) B-185L B-185M B-185U Bo186L B-186M Measurement Elevation Date Time (ft MSL) 05/12/2003 1:57 389.95 05/12/2003 2:05 392.87 05/12/2003 2:08 392.95 05/12/2003 2:10 392.96 05/12/2003 3:54 382.96 05/12/2003 3:57 383.01 05/12/2003 3:59 383.07 05/12/2003 3:36 385.79 05/12/2003 3:39 385.85 05/12/2003 3:41 385.88 05/12/2003 2:38 388.00 05/12/2003 2:40 388.07 05/12/2003 2:42 388.24 05/12/2003 2:51 391.14 05/12/2003 2:54 391.27 05/12/2003 2:58 391.29 05/12/2003 3:17 383.25 05/12/2003 3:20 383.32 05/12/2003 3:22 383.43 05/13/2003 7:49 385.25 05/13/2003 7:51 385.49 05/12/2003 4:04 383.03 05/12/2003 4:06 383.10 05/12/2003 4:15 390.06 05/12/2003 4:18 390.18 05/12/2003 4:21 390.30 05/12/2003 3:22 391.23 05/12/2003 3:24 391.30 05/12/2003 3:40 391.23 05/12/2003 3:45 385.47 05/12/2003 3:47 385.54 05/13/2003 8:55 385.85 05/12/2003 1:20 391.57 05/12/2003 1:23 391.69 05/12/2003 .1:25 391.79 05/12/2003 1:09 392.32 05/12/2003 1:12 392.43 Depth to Product Product (ft) Thickness (ft) Screen Interval (ft bgs) Piezometric Depth to Water Elevation (R) (~MSL) Start Depth End Depth 98.86 291.09 92.00 102.00 103.58 289.29 154.00 164.00 101.48 291.47 120.00 140.00 98.03 294.93 80.00 100.00 83.26 299.70 235.00 245.00 81.66 301.35 176.00 196.00 81.18 301.89 148.00 168.00 86.70 299.09 225.00 240.00 85.68 300.17 190.00 210.00 85.40 300.48 150.00 170.00 85.27 302.73 210.00 225.00 82.73 305.34 172.00 192.00 83.03 305.21 140.00 160.00 93.21 297.93 175.00 190.00 92.40 298.87 145.00 160.00 90.93 300.36 115.00 135.00 78.49 304.76 222.00 232.00 77.77 305.55 172.00 192.00 77.18 306.25 144.00 164.00 83.61 301.64 115.00 120.00 84.75 300.74 90.00 95.00 79.42 303.61 113.00 133.00 78.42 304.68 76.00 106.00 98.81 291.25 150.00 170.00 96.67 293.51 125.00 140.00 97.30 293.00 95.00 115.00 96.70 294.53 '150.00 165.00 91.24 300.06 125.00 140.00 95.50 295.73 90.00 110.00 82.44 303.03 120.00 135.00 81.64 303.90 85.00 105.00 ...... 143.00 147.00 101.33 290.24 190.00 205.00 101.40 290.29 165.00 180.00 97.76 294.03 126.00 146.00 103.11 289.21 182.00 202.00 103.12 289.31 165.00 175.00 Ta~e 1 2nd Quarter - ~ndwater Levels Shell Oil Products U. S. Well ID Measurement Date Time Elevation Depth to Product Depth to Water (ft MSL) Product (ft) Thickness (ft) (ft) Piezometric Elevation (ft MSL) Screen Interval (ft bgs) Start Depth End Depth B-186U B-187L B-187M B-187U B-188L B-188M B-188U B-195L B-195M B-195U B-196L B-196M B-196U B-201 B-202L B-202U D2 D3 DP2 M14S0) MN1Z MN2AU (1) MS2.5A PW-L23 PW-L26 PW-L28 PW-U4 R1 R2 R3 R4 R6B RS-6A RS-BW4 RS-DP4 RS-DP5 RS-DP6 05/12/2003 1:14 392.56 ...... 99.42 05/12/2003 3:17 389.33 ...... 95.43 05/12/2003 3:19 389.60 ...... 89.54 05/12/2003 3:22 389.80 ...... 89.40 05/12/2003 3:27 388.57 - ..... 94.60 05/12/2003 3:30 388.72 ...... 88.34 05/12/2003 3:32 389.12 ...... 88.82 05/12/2003 1:35 389.67 ...... 97.64 05/12/2003 1:38 389.44 ...... 94.26 05/12/2003 1:40 389.36 ...... 90.93 05/12/2003 11:28 388.42 ...... 104.99 05/12/2003 11:30 388.51 ...... 98.20 05/12/2003 11:32 388.66 ...... 95.78 05/13/2003 8:15 394.16 ...... 90.52 05/13/2003 8:07 388.62 ...... 85.79 05/13/2003 8:10 388.64 ...... 83.91 05/12/2003 1:55 388.29 ...... 86.13 05/13/2003 8:21 378.44 ...... 73.18 05/12/2003 10:45 386.07 ...... 93.44 05/12/2003 9:43 391.55 ...... 89.68 05/12/2003 1:20 389.40 ...... 96.96 05/12/2003 1:16 387.50 ...... 83.74 05/13/2003 8:02 384.62 ...... 82.86 05/12/2003 1:59 382.22 ...... 67.18 05/12/2003 2:18 381.18 ...... 71.18 05/12/2003 2:14 384.01 ...... 68.98 05/12/2003 12:05 388.16 ...... 71.08 05/12/2003 1:24 383.42 ...... 77.14 05/12/2003 1:07 387.20 ...... 79.02 05/12/2003 1:00 388.70 ...... 77.68 05/12/2003 12:23 390.04 ...... 82.41 05/12/2003 3:10 383.41 ...... 80.81 05/12/2003 1:17 379.99 ...... 74.65 05/13/2003 8:10 385.30 ...... 91.74 05/13/2003 8:15 386.27 ...... 97.54 05/12/2003 2:41 381.07 ...... 78.14 05/12/2003 2:13 387.07 ...... 95.84 293.14 ,125.00 145.00 293.90 160.00 180.00 300.06 125.00 145.00 300.40 70.00 100.00 293.97 160.00 180.00 300.38 110.00 140.00 300.30 70.00 95.00 292.03 165.00 180.00 295.18 122.00 152.00 298.43 80.00 105.00 283.43 160.00 180.00 290.31 125.00 145.00 292.88 75.00 105.00 303.64 75.00 95.00 302.83 114.00 134.00 304.73 97.00 105.00 302.16 54.00 114.00 305.26 40.00 100.00 292.63 92.00 105.00 301.87 70.00 90.00 292.44 14.00 104.00 303.76 20.00 80.00 301.76 18.00 108.00 315.04 100.00 144.50 310.00 90.00 138.75 315.03 70.00 143,00 317.08 100.00 140.00 306.28 12.00 105.00 308.18 12.00 117.00 311.02 12.00 117.00 307.63 12.00 117.00 302.60 18.00 98.00 305.34 88.90 148.90 293.56 105.00 134.00 288.73 125.00 150.00 302.93 98.00 138.00 291.23 129.25 149.25 Table 1 2nd Quarter - lndwater Levels Shell Oil Products U. S. Measurement Well ID Date Time Elevation Depth to Product Depth to Water (ft MSL) Product (ft) Thickness (ft) (ft) Piezometric Elevation (ft MSL) Screen Interval (ft bgs) Start Depth End Depth RS-DP7 05/12/2003 1:11 RS-HC7 05/12/2003 2:34 RS-HC8 05/12/2003 2:28 RS-MN 1Z 05/12/2003 1:28 RS-MN2B 05/12/2003 1:36 RS-MS2.5C 05/12/2003 11:56 RS-MS3A 05/12/2003 11:47 T10A 05/13/2003 8:50 T16A 05/13/2003 8:40 T3B 05/13/2003 8:45 T8B 05/13/2003 9:15 T9A 05/13/2003 9:10 TR-2 05/13/2003 9:20 U4 05/12/2003 11:57 WIP-W1 0) 05/13/2003 8:20 WIP-W2 0) 05/13/2003 7:59 WIP-W2A 05/13/2003 7:55 WIP-W3A 05/12/2003 2:47 WIP-W4 05/12/2003 1:01 WIP-W4A 05/12/2003 1:05 385.77 381.43 385.60 387.54 385.36 384.26 384.71 391.45 390.03 391.92 390.22 390.40 390.73 386.86 387.39 388.43 388.28 390.67 389.52 389.61 89.29 296.48 100.00 130.00 76.13 305.30 74.00 134.00 73.13 312.47 74.00 134.00 97.75 289.79 125.00 150.00 91.75 293.61 105.50 150.50 81.41 302.85 I00.00 149.00 87.97 296.74 100.00 130.00 83.48 307.97 73.00 95.00 81.54 308.49 20.00 50.00 83.79 308.13 59.00 89.00 83.02 307.20 70.00 90.00 83.45 306.95 70.00 90.00 81.38 309.35 42.00 82.00 67.28 319.58 35.00 95.00 68.95 318.44 50.00 70.00 68.82 319.61 50.00 70.00 83.72 304.56 20.00 50.00 86.32 304.35 20.00 50.00 Dry --- 50.00 70.00 83.20 306.41 19.00 49.00 Note: '---' = Not Applicable (1) - Insufficient water (2) - Positive pressure - Unable to purge/sample (3) - Well red tagged. Under pressure. Unable to guage/sample Table 2a 2nd Quarter - Monitoring Well Analytical Results Shell Oil Products U. S. Well ID Sample Date Units TPHG BENZENE TOLUENE ETHYL BENZENE o-XYLENE p/m-XYLENE MTBE A3-01 A3-02 A3 -03 A3 -04 B-001M B-003 B-007 B-008 B-009 B-010 B-011 B-013 B-014 B-017 B-023 B-024L B-024U B-030L B-030M B-041L B-041M B-041U B-042 B-043 B-044L B-044M B-050L B-050M B-052L B-052M B-052U B-075M B-098L B-098M B-098U B-099L B-099M B~I00L B- 100M B-103L B-103M B-104L B-104M B-105L B-105M B-106L B-106M B-107L B-107M B-108L B-108M 05/19/03 ug/L ND(100) ND(0.50) ND(1.0) 05/20/03 ug/L ND(100) ND(0.50) ND(1.0) 05/20/03 ug/L 290 88 3.0 05/20/03 ug/L 220 3.6 1.4 05/15/03 ug/L ND(100) ND(0.50) ND(1.0) 05/14/03 ug/L ND(100) ND(0.50) ND(1.0) 05/16/03 ug/L ND(100) ND(0.50) ND(1.0) 05/15/03 ug/L ND(100) ND(0.50) ND(1.0) 05/15/03 ug/L ND(100) ND(0.50) 0.470) 05/15/03 ug/L ND(100) ND(0.50) ND(I.0) 05/20/03 ug/L 1,000 9.6 ND(1.0) 05/20/03 ug/L 3,100 40 61 05/14/03 ug/L ND(100) ND(0.50) ND(I.0) 05/14/03 ug/L ND(100) ND(0.50) ND(1.0) 05/16/03 ug/L 150 ND(0.50) 0.38(J) 05/15/03 ug/L ND(100) ND(0.50) ND(1.0) 05/15/03 ug/L ND(100) ND(0.50) ND(1.0) 05/15/03 ug/L 840 ND(0.50) 0.39(J) 05/15/03 ug/L 650 ND(0.50) 0.57(J) 05/14/03 ug/L 3,000 0.36(J) 0.61(J) 05/14/03 ug/L 3,100 0.68 0.63(J) 05/20/03 ug/L 1,200 ND(0.50) ND(1.0) 05/19/03 ug/L 20,000 36 ND(20) 05/20/03 ug/L ND(100) 1,100 3,800 05/19/03 ug/L ND(100) ND(0.50) ND(I.0) 05/16/03 ug/L ND(100) ND(0.50) ND(1.0) 05/15/03 ug/L ND(100) ND(0.50) ND(1.0) 05/15/03 ug/L ND(100) ND(0.50) ND(1.0) 05/14/03 ug/L ND(100) ND(0.50) ND(1.0) 05/14/03 ug/L ND(100) ND(0.50) ND(1.0) 05/20/03 ug/L ND(100) ND(0.50) ND(1.0) 05/16/03 ug/L 3,300 0.79 0.93(J) 05/19/03 ug/L 100 ND(0.50) ND(1.0) 05/19/03 ug/L ND(100) ND(0.50) ND(I.0) 05/21/03 ug/L ND(100) ND(0.50) ND(1.0) 05/13/03 ug/L ND(100) 0.94 ND(I.0) 05/13/03 ug/L ND(100) ND(0.50) ND(1.0) 05/13/03 ug/L ND(100) ND(0.50) ND(1.0) 05/13/03 ug/L ND(100) ND(0.50) ND(1.0) 05/13/03 ug/L ND(100) ND(0.50) ND(1.0) 05/13/03 ug/L ND(100) ND(0.50) ND(I.0) 05/13/03 ug/L ND(100) ND(0.50) ND(1.0) 05/13/03 ug/L ND(100) ND(0.50) ND(1.0) 05/14/03 ug/L ND(100) ND(0.50) ND(I.0) 05/14/03 ug/L ND(100) ND(0.50) ND(1.0) 05/13/03 ug/L ND(100) ND(0.50) ND(1.0) 05/13/03 ug/L ND(100) ND(0.50) ND(1.0) 05/13/03 ug/L ND(100) ND(0.50) ND(1.0) 05/13/03 ug/L ND(100) ND(0.50) ND(I.0) 05/19/03 ug/L 6,800 4.4 ND(5.0) 05/19/03 ug/L 4,700 600(D) 1.3 ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 5.1 7.1 9.0 ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(! .0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 0.480) ND(1.0) ND(1.0) 0.280) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 0.45(J) 0.35(J) 2.7 1.2 170 250 260 ND(2.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 0.21(J) 0.22(J) 0.61(J) ND(1.0) ND(1.0) ND(1.0)- ND(1.0) ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 0.590) 0.29(J) ND(1.0) 0.47(J) 0.260) 0.73(J) ND(1.0) 1.0 0.890) 2.3 ND(1.0) 1.2 0.55(J) 0.950) ND(1.0) 0.240) 0.23(J) ND(1.0) 0.29(J) 2,700 12(J) 6,500 ND(20) 1,500 1,600 4,000 ND(50) 6.8 ND(1.0) 14 0.35(J) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 1.3 0.90(J) 9.1 3.7 ND(1.0) ND(1.0) 1.6 44 ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 0.19(J) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(I.0) ND(I.0) ND(I.0) 400 ND(5.0) 260 ND(5.0) 39 1.2 310 43 Well ID B-IIlL B-111M B-114L B-114M B-I15L B-115M B-116L B-116M B-117L B-117M B-118L BolI8M B-120L B-120M B-121M B-124L B-125L B-125M B-126L B-126M B-128L B-128M B-129M B-130LI B-130L2 B-130M B-131L1 B-150M B-160M B-161M B-164M B-166L B- 166M B-167L B-167M B-167U B-168L B-168M B-169U B- 170L B-170M B-170U B-171L B-171M B-171U B- 172L B-172M B-172U B-173L B-173M Sample Date 05/14/03 05/14/03 05/14/03 05/14/03 05/14/03 05/14/03 05/20/03 05/20/03 05/21/03 05/21/03 05/21/03 05/21/03 05/13/03 05/13/03 05/13/03 05/15/03 05/13/03 05/13/03 05/14/03 05/14/03 05/16/03 05/16/03 05/14/03 05/14/03 05/13/03 05/13/03 05/13/03 05/13/03 05/14/03 05/15/03 05/15/03 05/15/03 05/13/03 05/13/03 05/13/03 05/13/03 05/15/03 05/16/03 05/16/03 05/15/03 05/14/03 05/15/03 05/15/03 05/14/03 05/14/03 05/15/03 05/15/03 05/15/03 05/16/03 05/16/03 05/16/03 Table 2a 2nd Quarter - Monitoring Well Analytical Results Shell Oil Products U. S. ETHYL Units TPHG BENZENE TOLUENE BENZENE o-XYLENE p/m-XYLENE MTBE ug/L ND(100) 6.9 6.1 1.0 1.6 3.9 ND(1.0) ug/L 570 62 27 4.9 1.9 12 ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L 42,000 ND(25) 170 2,500 4,400 10,000 150 ug/L 25,000 ND(10) ND(20) 1,200 220 5,400 170 ug/L 37,000 3,100 350 2,400 3,800 8,500 ND(50) ug/L 29,000 ND(50) 160 1,400 3,200 7,700 ND(100) ug/L 21,000 200 440 1,300 1,900 4,600 ND(25) ug/L 45,000 270 9,100 2,500 5,600 12,000 ND(100) ug/L ND(100) ND(0.50) ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ug/L ND(100) ND(0.50) ND(I.0) ND(1.0) ND(1.0) ND(I.0) 2.7 ug/L ND(100) ND(0.50) ND(I.0) ND(1.0) ND(1.0) ND(I.0) ND(I.0) ug/L ND(100) ND(0.50) ND(1.0) ND(I.0) ND(1.0) ND(I.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) 1.4 ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ND(I.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(I.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(l.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND( 1.0) ND( 1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(I.0) ND(I.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND( I. 0) ND(1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND( 1.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(I.0) 1.3 ug/L 1,700 ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 2,400(D) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) 53 ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(I.0) ND(I.0) ug/L ND(100) ND(0.50) ND(1.0) ND(I.0) ND(1.0) ND(I.0) ND(1.0) ug/L 1,600 ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(1.0) 4,100(D) ug/L ND(100) 1.1 ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(I.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 74 ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(I.0) 55 ug/L ND(100) ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) ND(1.0) ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(I.0) Table 2a 2nd Quarter - Monitoring Well Analytical Results Shell Oil Products U. S. Well ID Sample Date Units TPHG BENZENE ETHYL TOLUENE BENZENE o-XYLENE p/m-XYLENE MTBE B-173U B-175L B-175M B-175U B-176L B-176M B-176U B-177L B-177M B-177U B-178M B-178U B-179M B-179U B- 180L B- 180M B- 180U B-181L B-181M B-181U B- 182M B-182U B-185L B-185M B-185U B-187L B-187M B-187U B-188L B-188M B-188U B-195L B-195M B-195U B-196L B-196M B-196U B-201 B-202L B-202U D2 D3 DP2 MN1Z MS2.5A PW-L23 PW-L26 PW-L28 PW-U4 R1 05/16/03 ug/L 05/20/03 ug/L 05/20/03 ug/L 05/20/03 ug/L 05/20/03 ug/L 05/19/03 ug/L 05/19/03 ug/L 05/15/03 ug/L 05/19/03 ug/L 05/20/03 ug/L 05/19/03 ug/L 05/21/03 ug/L 05/20/03 ug/L 05/20/03 ug/L 05/15/03 ug/L 05/15/03 ug/L 05/15/03 ug/L 05/15/03 ug/L 05/15/03 ug/L 05/20/03 ug/L 05/16/03 ug/L 05/16/03 ug/L 05/14/03 ug/L 05/14/03 ug/L 05/14/03 ug/L 05/15/03 ug/L 05/15/03 ug/L 05/21/03 ug/L 05/16/03 ug/L 05/19/03 ug/L 05/21/03 ug/L 05/20/03 ug/L 05/20/03 ug/L 05/20/03 ug/L 05/13/03 ug/L 05/13/03 ug/L 05/15/03 ug/L 05/16/03 ug/L 05/19/03 ug/L 05/19/03 ug/L 05/21/03 ug/L 05/15/03 ug/L 05/14/03 ug/L 05/19/03 ug/L 05/20/03 ug/L 05/14/03 ug/L 05/14/03 ug/L 05/14/03 ug/L 05/14/03 ug/L 05/21/03 ug/L 05/16/03 ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 25 210,000 44 30 14 16 20 ND(I.0) 17,000 6,100 5,400 1,200 1,300 1,700 ND(100) 38,000 1,400 8,100 1,900 3,600 7,600 ND(100) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 24,000 180 110 2,000 2,500 6,100 ND(25) 15,000 340 16 1,700(D) 320 3,500(D) 11 ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) 1.2 ND(1.0) ND(100) ND(0.50) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(I.0) 30 420 ND(0.50) ND(1.0) ND(1.0) 3.5 3.2 78 ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(I.0) 1.0 ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(1.0) 2,500 ND(50) ND(100) ND(100) ND(100) ND(100) 20,000 ND(100) ND(0.50) ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 39 ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) 5.1 ND(100) ND(0.50) ND(I.0) ND(1.0) ND(I.0) ND(1.0) 8.7 ND(100) ND(0.50) ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0)' ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) 53 ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(I.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(1.0) 170 ND(0.50) ND(1.0) 11 ND(1.0) 25 2.9 ND(100) ND(0.50) ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(I.0) ND(1.0) ND(1.0) ND(1.0) 6.7 ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) 7.4 ND(100) ND(0.50) ND(I.0) ND(1.0) ND(I.0) ND(I.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(I.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(I.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(I.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) 29,000 3,400 6,800 860 1,600 5,900 740 ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ND(I.0) 800 32 0.85(J) 3.9 0.54(J) 8.9 ND(I.0) 49,000 43(J) 1,100 3,000 7,300 19,000 ND(100) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(1.0) 39,000 89 8,400(D) 1,100 2,500 5,000 ND(20) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(I.0) 93,000 1,200 33,000 3,300 7,000 16,000 17,000 ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(I.0) Well 1D Sample Date Units Table 2a 2nd Quarter - Monitoring Well Analytical Results Shell Oil Products U. S. ETHYL TPHG BENZENE TOLUENE BENZENE o-XYLENE p/m-XYLENE MTBE R4 05/20/03 ug/L R6B 05/21/03 ug/L RS-6A 05/21/03 ug/L RS-BW4 05/15/03 ug/L RS-DP4 05/15/03 ug/L RS-DP5 05/14/03 ug/L RS-DP6 05/15/03 ug/L RS-DP7 05/15/03 ug/L RS-HC7 05/19/03 ug/L RS-HC8 05/14/03 ug/L RS-MN1Z 05/19/03 ug/L RS-MN2B 05/15/03 ug/L RS-MS2.5C 05/15/03 ug/L RS-MS3A 05/15/03 ug/L T10A 05/20/03 ug/L TI 6A 05/20/03 ug/L T9A 05/20/03 ug/L WIP-W2A 05/16/03 ug/L WIP-W3A 05/21/03 ug/L WIP-W4A 05/21/03 ug/L 2,000 0.70 0.710) 6.0 1.9 3.6 ND(1.0) 28,000 630 2,100 2,500 1,500 3,700 ND(20) 6,800 70 420 110 240 900 ND(5.0) ND(100) ND(0.50) ND(1.0) ND(I.0) ND(I.0) 0.170) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) 1.3 0.200) 0.330) 0.750) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(100) 1.1 ND(1.0) 0.440) 0.19(J) 0.980) ND(1.0) ND(100) ND(0.50) 10 0.98(J) 1.9 4.3 ND(1.0) 2,500 330 1.9(J) 14 3.9 27 52 ND(100) ND(0.50) ND(1.0) ND(I.0) ND(I.0) ND(1.0) ND(I.0) ND(100) ND(0.50) ND(1.0) ND(I.0) ND(I.0) ND(1.0) ND(I.0) ND(100) ND(0.50) ND(1.0) ND(I.0) ND(I.0) ND(1.0) ND(I.0) ND(100) ND(0.50) ND(1.0) ND(I.0) ND(I.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(I.0) ND(I.0) ND(1.0) ND(1.0) ND(100) ND(0.50) 1.3 ND(1.0) 2.0 3.3 8.2 ND(100) ND(0.50) ND(I.0) ND(I.0) ND(1.0) ND(1.0) ND(1.0) 2,000 ND(25) ND(50) ND(50) ND(50) ND(50) 7,700 ND(100) ND(0.50) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ND(1.0) otes: indicates a hit ND - Indicates not detected at the detection limit shown in parentheses ug/L = Micrograms per liter TPHG = Total Petroleum Hydrocarbons, Gasoline Range MTBE ='Metyl Tertiary Butyl Ether Qualifiers: (D) Compounds at secondary dilution factor. (J) Estimated value. Table 2b 2nd Quarter - Water Supply Well Analytical Results Shell Oil Products U. S. Well ID Sample Date Units ETHYL TPHG BENZENE TOLUENE BENZENE o-XYLENE p/m-XYLENE MTBE D-3 05/13/03 ug/L D-6 05/14/03 ug/L I-1 05/13/03 ug/L 1-12 05/13/03 ug/L I-2 05/13/03 ug/L I-3 05/13/03 ug/L I-6 05/14/03 ug/L I-9 05/14/03 ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(1.0) ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ND(1.0) Notes: ND - Indicates not detected at the detection limit shown in parentheses ug/L = Micrograms per liter TPHG = Total Petroleum Hydrocarbons, Gasoline Range MTBE = Metyl Tertiary Butyl Ether Sample Well ID T~pe Sample Code B-013 EB B-0130520301EB Table 3 2nd Quarter - Quality Assurance Results Shell Oil Products U. S. ETI~L CARBON CHLOROB D1CHLOROBE DICI~LORO VINYL Sample Date Units TPHG BENZENE TOLUENE BENZENE O=XYLENE p/m-XYLENE TETRACHLOR1DE ENZENE NZENE ZTHENE DIPE TBA ETHANOL ETBE MTBE TAME TCE CHLORIDE 5/2012003 ug/L ND(100) ND(0.50) ND(1.0) ND(l,0) ND(1.0) ND(l.0) ............ ND(l,0) --- B-024L E8 8-024L05150301EB B-041M EB B-041M05140301EB B-099L EB B-99L05130301EB B-107L EB B-107L05130301EB B-117M EB B-t17M05210301EB B-118M EB B-118M05210301EB B-130L2 EB B-130L205130301EB B-130L2 FB B-130L205130301FB B-~68M EB B-168M05160301EB B-178U EB B-178U05210301EB B-181U EB B-181U05200301EB B-185L EB B-185L05140301EB B-185L FB B-185L05140301FB 1-12 EB 1~1205130301EB 5/15/2003 ug/L ND(100} ND(O.50) ND(1.0) NO(t.O) ND(1.0) 0.17(J} .......... ND(1.0) ....... 5/14/2003 ug/L ND(100) ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) ......... ND(I.0) ....... 5113/2003 ug/L ND(100) ND(0.50) ND(1.0) ND(I.0) ND(I.0) NO(I.0) ................ ND(1.0) ..... 5/13/2003 ug/L ND(100) ND(0.50) ND(I.0) ND(I.0) ND(1.0) ND(I.0) ................ ND(l,0) ...... 5121/2003 ug/L ND(100) ND(O.50) ND(1.0) ND(I.0) ND(1.0) ND(I.0} ............ ND(l,0) ........ 5/21/2003 ug/L ND(100) ND(0.50) ND(1.0) ND(I.0) ND(I.0) ND(I.0) ................ ND(I.0) ....... 5/13/2003 ug/L ND{100) ND{0.50) ND(I.0) ND(I.0) ND(1.0) ND(I.0) ............... ND(I,0) --- 5113/2003 ug/L ND(100) ND(0.50) ND(1.0) ND(I.0) ND(I.0) ND(I.0) ............. ND(1.0) ...... 511612003 ug/L ND(100) ND(0.50) ND(l,0) ND(l.0) ND(I.0) ND(1.0) ..................... ND(l,0) ........ 5/21/2003 ug/L ND(100) ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) .................... ND(l,0) ........ 5/2012003 ug/L ND(100) ND(0.50) ND(1.0) ND(1.0} ND(I.0) ND(I.0) ..................... ND(l,0) ........ 5/14/2003 ug/L ND(100) ND(0.50) ND(I.0) ND(I.0) NO(I.0) ND(I.0) ................... ND(l,0) ........ 5/14/2003 ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(1.0) ........... ND{t,0) -- 5/13/2003 ug/L ND(100) ND(O.50) ND(I.0) ND(I.0) ND(1.0) ND(I.0) .................. ND(l,0) ........ 511312003 ug/L ND(100) ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(1.0) 1-12 FB 1-1205130301FB LCD LCD 098-03-006-3724-LCD 5/19/2003 %REC 94 --- LCD LCD 098-03-O06-3729*LCD 5/1912003 %REC 101 ........................... LCD LCD 098-03-006-3739-LCD 5/19/2003 %REC 85 ............................... LCD LCD 099-10-006-7527-LCD 5/19/2003 %REC -- 104 101 ......... 122 102 105 108 100 84 LCD LCD 099-10-006-7528-LCD 5119/2003 %REC --- 104 99 ........ 119 101 100 107 101 84 LCD LCD 099-10-006-7534-LCD 5/19/2003 %REC --- 112 115 ........ 107 105 109 106 108 110 LCD LCD 098-03-003-1523-LCD 5~20~2003 %REC .............................. LCD LCD 098-03-006-3730-LCD 5/20/2003 %REC 101 ............................. LCD LCD 098-03-006-3734-LCD 5/20/2003 %REC 112 .............................. LCD LCD 098-03-006-3735-LCD 5/20/2003 %REC 98 ............................... LCD LCD 098-03-006-3737-LCD 5/20~2003 %REC 103 ........................... LCD LCD 099-10-006-7531-LCD 5/20~2003 %REC -- 102 106 ........ 100 102 106 106 102 110 LCD LCD 099-10-006-7540-LCD 5120/2003 %REC -- 96 99 ........ 117 100 99 107 92 94 LCD LCD 099-10-006-7541-LCD 5/20/2003 %REC --- 105 100 ......... 118 103 103 107 101 82 LCD LCD 098-03-006-3738-LCD 5/21/2003 %REC 102 ............................ LCD LCD 098-03-006-3742-LCD 5/21/2003 %REC 95 ........................... LCD LCD 099-10-006-7543-LCD 5/21/2003 %REC --- 104 98 ......... 118 101 100 106 102 85 LCD LCD 099-10-006-7545-LCD 5121/2003 %REC -- 97 99 ......... 112 100 101 106 100 100 LCD LCD 099-10-006-7552-LCD 5/21/2003 %REC -- 99 102 ........ 103 100 106 111 107 116 LCD LCD 098-03-006-3748-LCD 5/22/2003 %REC 106 ......................... LCD LCD 099-10-006-7561-LCD , 5/22/2003 %REC --- 103 106 ...... 100 103 106 113 106 104 LCD LCD 099-10-006-7565-LCD 5/22/2003 %REC --- 102 103 ......... 102 104 104 114 113 120 LCD LCD 099-10-006-?566-LCD 5/22/2003 %REC --- 104 106 ........ 112 104 107 100 95 86 LCD LCD 099-10-006-756?-LCD 5/22/2003 %REC --- 113 117 ........ 108 109 111 104 107 102 LCD LCD 099-10-006-7571-LCD 5/22/2003 %REC -- 101 104 ....... 99 107 106 110 94 92 LCD LCD 098-03-003-1530-LCD 5/23/2003 %REC ......................... LCD LCD 098-03-006-3754-LCD 5/23/2003 %REC 97 ...................... LCD LCD 098-03-006-3756-LCD 5/23/2003 %REC 94 ....................... LCD LCD 098-03-006-3765-LCD 5/23/2003 %REC 90 LCD LCD 099-10-006-7572-LCD 5/23/2003 %REC --- 102 106 ......... 103 106 106 110 94 84 LCD LCD 099-10-006-7576-LCD 5/23/2003 %REC --- 105 106 ........ 123 105 107 110 97 75 LCD LCD 099-10-006-7577-LCD 5~23~2003 %REC -- 102 103 ......... 104 102 105 113 110 112 LCD LCD 099-10-006-7581-LCD 5/23/2003 %REC -- 104 108 ........ 107 109 108 119 97 89 LCD LCD 098-03-006-3758-LCD 5/24/2003 %REC 102 ......................... LCD LCD 098.-03-O06-3766-LCD 5/24/2003 %REC 94 ........................ LCD LCD 099-10-006-7585-LCD 5/24/2003 %REC -- 106 111 ........ 107 112 112 120 97 82 LCD LCD 099-10-006-7588-LCD 5/24/2003 %REC --- 99 103 ......... 100 106 104 113 90 78 LCD LCD 099-10-006-7589-LCD 5/24/2003 %REC -- 98 103 ........ 96 104 101 110 89 69 LCD LCD 099-10-006-7593-LCD 5/25/2003 %REC -- 100 105 ......... 97 107 106 113 89 73 ...... ND(l,0) ......... 100 99 96 91 92 99 100 98 96 92 96 98 92 117 113 116 95 97 104 118 103 101 105 91 88 96 93 94 89 104 99 98 95 90 92 98 105 98 95 9t 93 98 92 99 103 99 92 108 115 108 102 103 88 100 112 105 101 102 91 107 129 114 104 110 92 106 80 103 102 105 93 89 87 113 112 112 95 99 83 97 96 96 89 96 74 96 95 95 91 94 84 106 108 106 96 97 109 110 101 107 93 100 72 100 99 96 93 115 65 100 97 97 94 117 65 93 91 91 88 110 55 90 88 88 88 110 58 90 88 91 89 108 Table 3 2nd Quarter - Quality Assurance Results Shell Oil Products U. S. LCD LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS LCS MB MB MB MB MB MB MB MB MB MB MB MB 1,2- 1,1- ETHYL CARBON C~LOROB DICH~OROBE DICHLORO VINYL Sample Dale Unils TPHG BENZENE TOLUENE BENZENE o-XYLENE ~m-XY~ENE TETRACItLORIDE ENZENE NEE/gE ETHENE DIPE TBA ETHANOL ETBE MTBE TAME TCE CHLORIDE 99 ...... 120 102 103 107 99 83 98 ....... 117 102 101 106 101 87 114 ..... t07 105 109 108 108 117 102 ......... 102 102 106 104 113 110 115 ......... 108 106 108 104 110 82 106 ........ 120 107 110 111 104 104 99 ......... 114 101 103 106 99 78 97 ......... 115 98 99 105 99 81 102 ....... 117 105 102 112 100 98 105 ......... 102 102 104 108 108 110 106 ......... 100 104 109 113 105 102 100 ........ 99 99 104 110 103 110 106 ....... 110 105 108 103 93 89 117 ........ 110 109 110 108 107 102 105 ........ 99 108 105 112 95 86 105 ........ 104 109 108 111 95 88 107 ........ 123 105 108 107 99 77 101 ....... 103 102 103 112 111 106 107 ....... 104 109 108 118 94 85 113 ...... 106 113 112 119 97 79 103 ........ 98 105 103 113 89 76 103 ...... 96 105 103 109 90 67 104 ........ 98 106 105 114 88 74 511912003 uglL 5/19/2003 ug/L ND(100) -- 5/19/2003 ug/L ND(100) -- 5119/2003 ug/L ND(100) -- 5/19/2003 ug/L ND(100) -- Sample C~de LCD 098-03-006-3770-LCD 5/2812003 %REC 98 LCS 098-03-003-1523-LCS 5/19/2003 %REC .... LCS 098-03-006-3724-LCS 5/19/2003 %REC 88 -- LCS 098-03-006-3729-LCS 511912003 %REC 102 -- LCS 098-03-006-3739-LCS 5/19/2003 %REC 90 -- LCS 099-10-006-7527-LCS 5/19/2003 %REC --- 103 LCS 099-10-006-7528~LCS 5/19/2003 %REC -- 104 LCS 099-10-006-7534-LCS 5/19/2003 %REC --- 111 LCS 098-03-006-3730-LCS 512012003 %REC 100 --- LCS 098-03-006-3734-LCS 5/2012003 %REC 108 -- LCS 098-03-006-3735-LCS 5120/2003 %REC 100 -- LCS 098-03-006-3737-LCS 5/2012003 %REC 106 --- LCS 099-10-006-7531-LCS 5/20/2003 %REC -- 104 LCS 099-10-006-7536-LCS 5/20/2003 %REC -- 111 LCS 099-10-006-7540-LCS 5/20/2003 %REC --- 103 LCS 099-10-006-7541-LCS 5/20/2003 %REC --~ 104 LCS 099-10-006-7543-LCS 5~20/2003 %REC --- 103 LCS 098-03-006-3738-LCS 5/21/2003 %REC 102 --- LCS 098-03-006-3742-LCS 5/21/2003 %REC 86 --- LCS 099-10-006-7545-LCS 5/21/2003 %REC -- 100 LCS 099-10-006-7552-LCS 5/21/2003 %REC -- 104 LCS 099-10-006-7561-LCS 5/21/2003 %REC -- 104 LCS 098-03-006-3747-LCS 5/22/2003 %REC 111 --- LCS 098-03-006-3748-LCS 5/2212003 %REC 104 -- LCS 099-10-006-7565-LCS 5/22/2003 %REC --- 100 LCS 099-10-006-7566-LCS 5/22/2003 %REC -- 103 LCS 099-10-006-7567-LCS 512212003 %REC --- 114 LCS 099-10-006-7571-LCS 512212003 %REC --- 101 LCS 098-03-003-1530-LCS 5/23/2003 %REC ...... LCS 098-03-006-3754-LCS 5/23/2003 %REC 100 -- LCS 098-03-006-3756-LCS 5/23/2003 %REC 103 -- LCS 098-03-006-3765-LCS 5/23/2003 %REC 88 -- LCS 099-10-006-7572-LCS 5/23/2003 %REC --- 102 LCS 099-10-006-7576-LCS 5/23~2003 %REC --- 107 LCS 099-10-006-7577-LCS 5/23/2003 %REC -- 102 LCS 099-10-006-7581-LCS 5/23/2003 %REC --- 103 LCS 098-03-006-3758-LCS 5/24/2003 %REC 103 -- LCS 098-03-006-3766-LCS 512412003 %REC 98 --- LCS 099-10-006-7585-LCS 5~24/2003 %REC --- 107 LCS 099-10-006-7588-LCS 5/24/2003 %REC -- 98 LCS 099-10-006-7589~LCS 5/24/2003 %REC --- 98 LCS 099-10-006-7593-LCS 5/25/2003 %REC -- 99 LCS 098-03-006-3770-LCS 5/28/2003 %REC 95 -- MB 098-03-003-1523~MB -- MB 098-03-006-3724-MB MB 098-03-006-3729-MB MB 098~3-006-3734-MB MB 098-03-006-3739-MB MB 099-10-006-7527-MB 5/19/2003 u~L -- ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) MB 099-10-006-7534-MB 5/19/2003ug/I. --- ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) MB 098-03-006-3730~MB 5~20~2003 ug/L ND(100) ........ MB 098-03-006-3735-MB 5/20/2003 ug/L ND(100) .......... MB 098-03-006-3737-MB 5/20/2003 ug/L ND(100) .......... MB 099-10-006-7528~MB 5/20/2003 ug/L -- ND(0.50) ND(1.0) ND(I.0) ND(1.0) ND(I.0) MB 099-10-006-7531-MB 5/20/2003ug/L --- ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) 103 97 95 91 90 98 103 99 96 92 95 98 100 118 114 116 94 97 109 115 100 109 93 95 88 114 98 110 93 92 97 106 105 105 96 113 99 95 92 88 91 97 100 97 93 89 92 96 99 103 102 101 97 114 133 108 99 108 92 97 95 105 101 102 92 106 110 104 99 103 90 102 82 103 101 105 92 91 91 113 112 112 95 101 70 96 94 94 90 97 73 98 97 96 90 94 78 108 107 107 96 94 124 110 100 108 93 98 70 96 94 95 92 113 65 99 97 98 96 118 61 90 88 89 88 108 52 90 86 88 86 107 52 92 89 90 89 107 ~ -- ND(1.0) ....... ..... ND(1.0) ..... ..... ND(I.0) ........ ..... ND(I.0) ........ Table 3 2nd Quarter - Quality Assurance Results Shell Oil Products U. S. 1,2- 1,1- Sample ETHYL CARBON CHLOROB DICHLOROBE DICHI.ORO VINYL. WelllD T~e SampleCode Sam~leDale Unit! TPHG BENZENE TOLUENE BENZENE o-XYLENE p~m-XYLENE TETRACHLORIDE ENZENE NZENE ETHENE DIPE TBA ETI,IANOL ETBE MTBE TAM~E TCE CHLORIDE Mi3 MB 099-10-006-7536-MB 5/20/2003 ug/L -- ND(0.50) ND(I.0) ND(1.0) ND(1.0) ND(1.0) .................. ND(1,0) ....... MB MB 099-10-006-7540-MB 512012003 ug/L --- ND(0.50) ND(I,0) ND(I.0) ND(I.0) ND(I.0) ................... ND(I.0) ........ MB MB 099-10-006-7541-MB 5/20/2003 ug/L --- ND{0.50) ND{1.0) NDI1.0) ND(1.0) ND{1,0) ................... ND(1.0) ....... MB MB 098-03-006-3738-MB 5/21/2003 ug/L ND(100} ...................... .............. MB MB 098-03-006-3742-MB 5121/2003 ug/L ND(100) ........................................ MB MB 098-03-006-3747-MB 512112003 ug/L ND(100) ................................. MB MB 099-10-006-7543-MB 5121/2003 ug/L -- ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ................ ND(l,0) ....... MB MB 099-10-006-7545-MB 5/21/2003 ug/L -- ND(0,50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) ............... ND(I.0) ........ MB MB 099-10-006-7552-MB 5/2112003 ug/L -- ND(0,50) ND(I,0) ND(I.0) ND(I,0) ND(1.0) .............. ND(I.0) ....... MB MB 098-03-006-3748-MB 5/22/2003 ug/L ND(100) ................................. MB MB 099-10-006-7561-MB 5/2212003 ug/L --- ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) ................ ND(I.0) ........ MB MB 099-10-006-7565-MB 5/2212003 ug/L --- ND(0.50) NI~(I.0) ND(I.0) ND(I.0) ND(I,0) ................ ND(1.0) ....... MB MB 099-10-006-7565-MB 5/2212003 ug/L --- ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) ................ ND(I,0) ....... MB MB 099-10-006-7567-MB 5/22/2003 ug/L --- ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ..................... ND(l.0) ......... MB MB 099-10-006-7571-MB 5/22/2003 ug/L --- ND(0.50) ND(l.0) ND(l.0) ND(l,0) ND(1.0) ............... ND(I.0) ......... MB MB 098-03-003-1530-MB 5/23/2003 ug/L .................................................. MB MB 098-03-006-3754-MB 5/23/2003 ug/L ND(100) ................................... MB MB 098-03-006-3756-MB 5/23/2003 ug/L ND(100) ............................................. MB MB 098-03-006-3765-MB 5/23/2003 ug/L ND(100) .............................................. MB MB 099-10-006-7572-MB 5/23/2003 ug/L -- ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) ............... ND(I.0) ....... MB MB 099-10-006-7576-MB 5/23/2003 ug/L --- ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) ..................... ND(I.0) ....... MB MB 099-10-006-7577-MB 5/23/2003 ug/L --- ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(1.0) ............... ND(1,0) ....... MB MB 099.10-O06-75Bf-MB 5/23/2003 ug/L --- ND(0.50) ND(1.0) ND(LO) ND(1.0) ND(1.0) ................. ND{1.0) ........ MB MB 098-03-006-3758-MB 5/24/2003 ug/I. ND(100) ......................................... MB MB 098-03-006-3766-MB 5/24/2003 ug/L ND(100) ................................................ MB MB 099-10-006-7585-MB 512412003 ug/L --- ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) ....................... ND(I.0) ......... MB MB 099-10-006-7588-MB 5/24/2003 ug/L --- ND(0.50) ND(I.0) ND(1.0) ND(1.0) ND(I.0) .............. ND(I.0) ....... MB MB 099-10-006-7589-MB 5/25/2003 ug/L -- ND(0.50} ND(1.0) ND(1,0) ND(1.0) 0.1?(J) ............ 7 ND(1.0) ........ MB MB 099-10-006-7593-MB 5/25/2003 ug/L -- ND(0.50) ND(1.0) ND(1.0) ND(1.0) ND(I.0) ................. ND(1.0) ........ MB MB 098-03-006-3770-MB 5/28/2003 ug/L ND(100) ........................................ MS MS 03-05-0917-10-MS 5/19/2003 %REC 89 ..................................... MS MS B-001M05150301-MS 5/1912003 %REC 84 ..................... MS MS B-00805150201-MS 5/19/2003 %REC -- 102 98 ....... 116 100 101 105 98 89 MS MS B-107M05130301-MS 5/19/2003 %REC --- 110 114 ........ 105 104 106 102 106 89 MS MS B-130M05130301-MS 5/19/2003 %REC 94 ....................... MS MS B-172M05150301-MS 5/19/2003 %REC 95 ..................... MS MS 03-05-0930-1-MS 5/20/2003 %REC --- 103 99 ........ 113 100 102 105 98 112 MS MS 03-05-0995-2-MS 5/20/2003 %REC 96 ..................... MS MS B-001M05150301-MS' 5~20~2003 %REC --- 103 99 ....... 113 100 102 105 98 112 MS MS B~)0705160301-MS 5/20/2003 %REC -- 114 119 ......... 107 110 112 104 111 115 MS MS B-00905150301-MS 5/20/2003 %REC 104 ........................ MS MS B-052M205140301-MS 5/20/2003 %REC -- 104 99 ....... 116 100 100 105 99 83 MS MS B-168M05160301-MS 5/20/2003 %REC -- 106 109 ....... 117 109 108 116 103 108 MS MS B-173U05160301-MS 5/20/2003 %REC 97 .......................... MS MS 03-05-0930-15-MS 5121/2003 %REC --- 103 96 ....... 114 98 97 104 100 111 MS MS 03-05-1146-2-MS 5/21/2003 %REC 103 ...................... MS MS B-104L05130301-MS 5/21/2003 %REC 102 .................. MS MS B-129L05140301-MS 5/21/2003 %REC -- 103 96 ......... 114 98 97 104 100 111 MS MS B-185L05140301EB-MS 5/21/2003 %REC -- 102 104 ....... 99 103 106 107 102 107 MS MS RS-MS25C05150301-MS 5/2112003 %REC 97 ..................... MS MS 03-05-1063-4-MS 5/22/2003 %REC -- 99 103 ....... 96 105 104 108 92 83 MS MS 03-05-1152-1-MS 5/22/2003 %REC 95 .................. MS MS 03-05-1232-I-MS 5/22/2003 %REC --- 113 117 ...... 109 109 109 104 103 84 MS MS B-185U05140301-MS 5/22/2003 %REC --- 100 104 ........ 92 102 104 94 98 80 MS MS B-196L05130301-MS 5/22/2003 %REC --- 100 103 ....... 103 102 102 96 86 108 95 96 94 90 89 94 82 109 103 107 93 89 101 96 93 88 89 92 101 96 93 88 89 92 98 116 116 115 97 92 95 96 94 89 90 97 99 102 102 102 96 115 102 95 92 88 88 93 102 95 92 88 88 93 102 101 97 100 92 102 67 93 92 92 88 93 86 103 98 103 94 97 70 97 87 92 88 91 83 94 94 99 89 83 Table 3 2nd Quarter - Quality Assurance Results Shell Oil Products U. S. MS MS MS MS MS MS MS MS MS MS MS MS MS MS MS MS Sample Cede MS 1-105130301-MS 5/22/2003 %REC --- 102 103 MS 03-05-1233-2-MS 512312003 %REC -- 107 108 MS 03-05-1272-3-MS 5/23/2003 %REC 92 .... MS B-178M05190301-MS 5/23/2003 %REC --- 105 107 MS B-181U05200301EB-MS 5/23/2003 %REC -- 101 103 MS B-187U05210301-MS 5/23/2003 %REC 98 MS B-202L05190301-MS 5/23/2003 %REC 82 -- -- MS 03-05-1236-21-MS 5124/2003 %REC --- 98 102 MS 03-05-1345-7-MS 5/24/2003 %REC 96 ..... MS A3-0405200301-MS 5/24/2003 %REC -- 101 101 MS B-176L05200301-MS 5~24/2003 %REC -- 98 102 MS T10A05200301-MS 5/2412003 %REC 87 ..... MS 03-05-1237-18-MS 512512003 %REC -- 98 99 MS 03-05-1365-1-MS 5/25/2003 %REC -- 101 106 MS RS-NCT05190301-MS 5/25/2003 %REC -- 98 99 MS 03-05-1335-2-MS 5128/2003 %REC 95 ...... ETH~L CARBON CHLOROB DICHLOROBE DICHLORO VINYL 98 103 107 121 105 109 110 96 89 103 111 107 116 95 88 94 102 104 107 102 94 99 105 104 110 89 79 99 108 108 105 93 84 99 105 104 110 89 79 95 105 102 107 89 72 96 107 107 115 91 77 95 105 102 107 89 72 111 101 109 103 101 99 100 90 105 79 108 107 108 97 98 73 96 96 95 92 114 95 101 94 97 90 101 61 90 88 88 88 108 60 94 90 90 89 110 61 90 88 88 88 108 53 90 87 87 87 106 60 92 91 92 93 110 53 90 87 87 87 106 MSD MSD 03-05-0917-10-MSD 5/19/2003 %REC 86 ...... MSD MSD B-O01M05150301-MSD 5119/2003 %REC 82 ...... MSD MSD B-00805150201-MSD 5/19/2003 %REC --- 101 97 MSD MSD B-107M05130301-MSD 5/19/2003 %REC --- 112 116 MSD MSD B-130M05130301-MSD 5/19/2003 %REC 96 ...... MSD MSD B-172M05150301-MSD 5/19/2003 %REC 91 ..... MSD MSD 03-05-0930-I-MSD 5/20/2003 %REC --- 103 98 MSD MSD 03-05-0995-2-MSD 5/20/2003 %REC 96 ...... MSD MSD ~-001M05150301-MSD 5/20/2003 %REC --- 103 98 MSD MSD ~-00705160301-MSD 5/20/2003 %REC -- 113 122 MSD MSD ~-00905150301-MSD 5/20/2003 %REC 110 ...... MSD MSD ~-052M205140301-MSD 5/20/2003 %REC --- 103 98 MSD MSD 3-168M05160301-MSD 5/20/2003 %REC --- 104 105 MSD MSD 3-173U05160301-MSD 5/20/2003 %REC 96 ..... MSD MSD )3-05-0930-15-MSD 5/21/2003 %REC -- 103 95 MSD MSD )3-05-1146-2-MSD 5/21/2003 %REC 104 ...... MSD MSD -104L05130301-MSD 5121/2003 %REC 108 ..... MSD MSD 3-129L05140301-MSD 512112003 %REC -- 103 95 MSD MSD 3-185L05140301EB-MSD 5121/2003 %REC -- 102 104 MSD MSD RS-MS25C05150301-MS£ 5/21/2003 %REC 92 MSD MSD )3-05-1063-4-MSD 5/22/2003 %REC -- 101 107 MSD MSD )3-05-1152-1-MSD 5/22/2003 %REC 98 ..... MSD MSD )3-05-1232-1-MSD 5/2212003 %REC -- 116 117 MSD MSD ~-185U05140301-MSD 5/22/2003 %REC --- 101 104 MSD MSD ,-196L05130301-MSD 5/22/2003 %REC -- 102 106 MSD MSD -105130301-MSD 5/22/2003 %REC -- 103 104 MSD MSD )3-05-1233-2-MSD 5/23/2003 %REC -- 106 107 MSD MSD )3-05-1272-3-MSD 5~23/2003 %REC 92 .... MSD MSD ~-178M05190301-MSD 5/23/2003 %REC -- 107 110 MSD MSD ~-181U05200301EB-MSD 5/23/2003 %REC -- 100 103 MSD MSD ~-187U05210301-MSD 5/23/2003 %REC 98 .... MSD MSD ~-202L05190301-MSD 5/23/2003 %REC 77 -- -- MSD MSD )3-05-1236-21-MSD 5/24/2003 %REC --- 98 101 MSD MSD )3-05-1345-7-MSD 5/24/2003 %REC 92 -- -- MSD MSD ~3-0405200301-MSD 5/24/2003 %REC --- 106 105 MSD MSD 3-176L05200301-MSD 5/24/2003 %REC -- 98 101 MSD MSD T10A05200301-MSD 5/24/2003 %REC 79 ..... MSD MSD 03-05-1237-18-MSD 5/25/2003 %REC --- 99 103 MSD MSD 03-05-1365-1-MSD 5/25/2003 %REC -- 102 107 116 99 100 106 107 109 114 101 101 114 101 101 106 109 110 117 98 99 120 108 107 117 97 97 117 97 97 99 103 106 98 109 108 111 112 109 95 102 106 104 105 106 102 103 105 118 104 108 105 111 110 99 103 107 96 103 104 99 111 111 96 103 104 97 106 108 99 108 108 104 97 85 100 95 93 88 88 94 103 109 117 95 115 114 114 94 92 105 99 118 99 95 93 90 90 96 105 99 118 99 95 93 90 90 96 100 107 116 105 110 114 112 94 89 106 99 83 92 96 93 89 89 97 113 102 114 104 103 107 102 93 116 105 101 124 102 97 95 88 89 98 105 101 124 102 97 95 88 89 98 107 102 111 108 101 98 99 89 102 107 93 85 68 95 92 93 89 96 105 107 92 87 109 106 109 95 101 103 102 96 87 100 92 96 89 98 98 90 177(34) 88 98 99 104 92 90 111 108 109 110 106 100 104 92 104 115 97 92 83 108 105 106 96 106 118 97 89 75 99 98 98 94 118 110 104 103 97 102 98 100 89 103 108 86 78 109 96 86 108 86 78 107 89 68 116 92 79 56 88 86 87 87 106 58 97 94 94 94 113 56 88 86 87 87 106 53 90 86 87 87 108 62 93 91 92 95 111 Table 3 2nd Quarter - Quality Assurance Results Shell Oil Products U. S. Sample T~pt Sample MSD RS-NC705190301-MSD 5/25/2003 %REC -- 99 103 ....... MSD 03-05-1335-2-MSD 5/28/2003 %REC 96 ........ EB R405200301EB 5/20/2003ug/L 2,600 ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) TB TB105130301 5113/2003 ug/L ND(100) ND(0.50) ND(1.0) ND(I.0) ND(I.0) ND(I.0) TB TB305130301 5/13/2003 ug/L ND(100) ND(0.50) ND(1.0) ND(I.0) NO(I.0) NO(I.0) TB TB405130301 5113/2003 ug/L ND(100) ND(0.50) ND(1.0) ND(I.0) ND(I.0) ND(I.0) TB TB205130301 5/16/2003 ug/L ND(100) ND(0.50) ND(1.0) ND(1.0) ND(I.0) ND(I.0) TB1A05190301 5119/2003 ug/L ND(100) ND(0.50) ND(I.0) ND(I.0) ND(1.0) ND(I.0) TB20519301 5/19/2003 ug/L ND(100) ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) TB30519301 5/19/2003 ug/L ND(100) ND(0.50) ND(I.0) ND(I.0) ND(I.0) 0.24(J) TB4A05190301 5/19/2003 ug/L ND(100) ND(0.50) ND(I.0) ND(I.0) ND(I.0) ND(I.0) WIP-W3A05210301EB 5/21/2003 ug/L ND(1001 NDI0.50) 1.2 ND(1.01 ND(1.0) 1.3 1,2- I,I- ETHYL CARBON CHLOROB DICHLOROBE DICHLORO VINYL SampleDate Units TPHG BENZENE TOLUENE BENZENE o-XYLENE p/m-XYLENE TETRACHI,ORIDE ENZENE NZENE ETHENE DIPE TBA ETHANOL ETBE MTBE TAME TCE CHLORIDE MSD MSO R4 TB TB TB TB TB TB TB TB TB TB TB TB WIP-W3A EB 97 106 108 107 89 68 53 90 86 87 87 108 .......... ND(I.0) ....... ........... ND(1.0) -- ............. ND(I.0) ...... ............. ND(I.0) --- .......... ND(1.0) ........ ............. ND(1.O) ......... ............ ND(1.0) ........ ............... ND(I.0) ......... ............. ND(1.0) ....... -- : ........ ND(1.0) ........ FIGURES H:\Projects\SH ELL\Bakersfield\Final\077-030~Report03.doc ,~ -'~ ........ -~-~===--. ~ '~ ~ '. II '~ .... '--L:TZ-~=',f']Z~)~/~~ %~' o ' 'o ~' ~ o .. nE ~1' ~ I~' ,U ~ III.~A b SALES TERMINAL~ -'~,~~5;:~ ~/~, ..- ---.-~ o o, , ,, ,., ~,, ' ~. - .. i ~,, ~.7 . . ~ .. .... ~SRELLBAKERSFIELD-~~o,, o,, I / /~ j Tanks "o ~~~REFINERY " .. · ,~ ~J~ - .,, ~///~//~//AREA 2 ~~~====.=~t _ o_ ~ o ~ (,,¢ ~: ': .... _ ~ ~,,,' .~' ~o : ,~, : .~ , ,:'~ from U.S.G.S. 7.5 MIN. QUADRANGLE 2000 ft. GOSFORD, CA 1949, PHOTOREVlSED 1969 I AND OILDALE, CA 1954, PHOTOREVlSED 1968 FIGURE 1 .,--., SITE VICINITY MAP, SHELL BAKERSFIELD, REFINERY AND SALES TERMINAL, TriHydro Corporation BAKERSFIELD, CALIFORNIA 920 Sheridan Street Laramie, ~toming 82070 Drawn By: BW I Checked By: NB J scale: AS SHOWN J Date: 03/06/03 J Ref: 077USGSSITES SCALE Checked By: J~ I S.le: 1"=600' I Date: 01/30/031 Ref: 07781TEP~N -,% B-I~ 29t E] B-169U 290.22 / ROSEOALE HIGHWAY EW-04 · J Dry · B-186U 293.14 292. 29t .07 290.4'1 B® l14M ",291.99 AS2.SA 301,76 305.26 , r~ O.OOb ..... :::'-0 0000'{ 0 0 97/AREA 91 121M B-11OM 0321.t4 AVENUE TriHydro Corporation 920 Sheridan Street Laramie, W~oming 82070 B-121M 309.76 EW-08 bgs EXPLANA T/ON Drawn By: BW [Checked By: J~ [ S~le: 1" MONITORING WELL AND NAME (showing potentiometric-surface elevation in feet above mean sea level) EXTRACTION WELL AND NAME LINE OF EQUAL ELEVATION OF POTENTIOMETRIC SURFACE (in feet above mean sea level; d~shed where inferred; hachures delineate depressions in the potentiometric surface) DIRECTION OF GROUNDWATER FLOW BELOW GROUND SURFACE PROPERTY BOUNDARY Note: Groundwater elevations from multiple-completed wells are shown on the map 0 600 ft. SCALE FIGURE 3 POTENTIOMETRIC MAP FOR GROUNDWATER <~0' bgs, SHELL BAKERSFIELD REFINERY, BAKERSFIELD, CALIFORNIA (May 2003) = 600' [ Date: 07/18/03 [ Ref: 077PS0503U HIGHWAY '.",,, [- -, ', / '; ~-, : ;.-. ~. I I ..... BF,162M 11-11~-',-41 -- q-I ] ' 1 . .¢ ~ ,, . , L., ) '/, B~64U ~ ,~/ ¢ . ' C-I / /,11~ ~ ~ ~ ,: =- ', ~ ~ ~ ~ I : t ' J ///___~%1~'~7'~ 1-, ~~ h k]---'] ! " _B-128. MONITORING WELL AND NAME / / // I t~ ~;=L~i'-' i-~, I [1~ t: ;: o,/~/ .~295~L--~-JJl .... ]__:[ ...... ' Il ;'1 ..... : ~ ~' /I ..... ;,::---~ elevation in feet above mean / / // [ t '' [' , ~/.J" ~ ,I~ /1. ~I/~B%~;~TM/ "'~ ~ ~ 12B~1-76~--"1-% n,- ~, L/ / ~ // sea level) // 2-~; -' ~:-~ I ~¢~ 2~.85' - ~ ~ ~":~ ~1 ___~ ~~'~ r~ /- j , .EW-09 EXTRACTION WELL AND NAME deshed where inferred; h~chures %~' ] "_ 286.,'-"' .' . ?~X~--~!'" 'i delineate depressions in the ~ ~ ~ .~~ ~i* 3ooo3 ' ~' '¢)''~/ , ~ DIRECTION OF GROUNDWATER FLOW . ::. /. , =-:~1<'~:: .......... ,.. ;_,~:~__:.~.7 ..... :,:i < :?,~ :::.;-;-;-.~ ;-::r:;::-~:, :r::;:,-: :>%':~4:H:~ '-:-N:: .... :-'~ ......... ->,.;:~ ,: :, ,c,,,: ~, ! multiple-completed wells ~re I - ~- ,?-~Bi~-I 5es":~B-~-052M'-::-I[290'87 ~~~,[~~ t~/~}~_ , F;'-":-:: 3: :.: _:~ 2:: :..:: :~¢~¢3'": :'~;?-" _L';%: }; ,:-":]~3'?~'~';: :::,-;-;-;.::-;-;:::-,-;:~:;.4-v,:::3, ;: shown on the mop I ~.~ L_,/, B~¢~ 0.~ ,, q[ :~ i Z ' ~ ~ RERN~ AVENUE / ,- -,-- ....... .,,., . ...... .._,_..: ..... , !-'~ ~ 0 600 ft. , 8 ¢'~ ...... ¢- ~¢~, ..' ........... :-,' _~. I ~ = l~ I J ~ ; ': L ,- -, -- =~ ~ ' / -..,-:, :: j ~ J POTENTIOMETRIC MAP FOR GROUNDWATER ~ ' ' ' * ¢' ', ' ", ~ /, ' -: 1, ~ ',110' - t40' bgs, SHELL BAKERSFIELD REFINERY, I I [, i ,i · - ~ -- :..,.~. _;: ~/i TriHydro , I ! ii .... J ~ L . J ;:1 ........ .U< ,,~ Corporat on BAKERSFIELD, CALIFORNIA , Laramie, ~oming 82070 · ' ' ....... ......... ' ...... ~ ~ ......... ' .... ~' : ' - "' "~ D~wn By: SW I Checked By: JA I S~,e: 1"=SO0' I Date: 07,18,031 ][ 30L2 282.1 B-1,30L1 282.2 29L1 283.93 B-1 283.43 ROSEDALE HIGHWAY 26L,,, 288.84 'r--] r~ lq ,'u" B_- 1_28E '300,18 · I I r~302.73-' B-013 .L 0 o / / C STRE~r ,. [J i ('.) : I B-128L · 3oo.t8 ~,EW-07 .., ----$12-- bgs i EXPLANA l/ON TriHydro Corporation 920 Sheridan Street Laramie, ~b~oming 82070 Drawn By: BW I Checked By:.~R I Scale: 1": e00' MONITORING WELL AND NAME (showing potentiometric-su rface elevation in feet above me(]n se(] level) EXTRACTION WELL AND NAME LINE OF EQUAL ELEVATION OF POTENTIOMETRIC SURFACE (in feet (]hove mean se(] level; dashed where inferred; hachures delineate depressions in the potentiometric surface) DIRECTION OF GROUNDWATER FLOW BELOW GROUND SURFACE PROPERTY BOUNDARY POTENTIOMETRIC MAP FOR GROUNDWATER >140' bgs, SHELL BAKERSFIELD REFINERY, BAKERSFIELD, CALIFORNIA (May 2003) I Date: 07/21/03 I Ref: 077PS0503L FIGURE 5 O 600 ft. I I I SCALE Note: Groundwater elev(]tions from multiple-completed wells are shown on the map B-167U B-171U 4100 I i- eB_ll5M : ROSE:DALE: HIGHWAY 180U · r~ 2400~ EW-04 ~ '- 11 <1 B-187U ! B-:20_1 i T9A :20 ~2U' B-OSOM <t 150M <1 <t B- 182U: $9 ) <1 ,~ ARE~ 91 o eB~121M c:,O, r o 0 (_) , '2 <1 "I · ,, B-Og9Mt · · B-114M <1 <1 <1 B-lOOM · · B-IOSM <t DP2 I t B- 104-M ] <1 i .I. J. MS2.5A · <100 I mm mmmm i m mmmmm ·B-111M <1 _ )1,~)11' ;L->-.:" ',' 4':,': TriHydro Corporation 920 Sheridan Strut Laramie, Wyoming 82070 Drawn By: BW I Checked By: J,R B-121M EW-08 MTBE bgs g/b '1 EXP LA IV~ T/ON MONITORING WELL AND NAME (showing MTBE concentrotion in microgroms per liter) EXTRACTION WELL AND NAME LINE OF EQUAL METHYL TERT- BUTYL ETHER (MTBE) CONCENTRATION (in pc.i/L; doshed where inferred) METHYL TERT-BUTYL ETHER BELOW GROUND SURFACE MICROGRAMS PER LITER PROPERTY BOUNDARY qOTE: kLL CONCENTRATIONS SHOWN IN jug/L. 0 600 ft. I I I SCALE FIGURE 6 MTBE PLUME CONTOURS FOR GROUNDWATER <~q0' bgs, SHELL BAKERSFIELD REFINERY, BAKERSFIELD, CALIFORNIA (May 2003) ROSE:DALE HIGHWAY Q. / , ~ , ,.,~:. ,. ~ ...... ; J ~ FOR GROUNDWATERtl0 -140 b~s. J:~ - - - -;?" ¢-~ Corporation ~ ~AKERSFIELD, CALIFORNIA ~ ~,~ < 920 Sher dan Str~ I ~Ma- 2003~ I t-I1~-:-~ "-' - '] ,,; - q ~u V ,' ' ~-; .~ '~ ~ ~' // I~ll~ ~~i~:( ;J oB~128L MONITORING WELL AND NAME / ///g :, ~ t JLJ L ,i ~- ,~ J~-' ~ ~ /~L -~] J~~ '- J ~J [~ ~ i'., ' (showing MTBE concentration / / /l~ ; ' ' ';' r, :~ ¢-q .... ,,' ~ .., ,J I ~,' - // jC:B~_1_28L n~ /~ ~' ~ ~ ? rf' I ; in micrograms per liter) / /;//~ i I I ~ ~ ' , -¢~/ f--~'---~%iJ----~r ..... q/~U_ ~j o ~ ..¢~ ~ .EW-07 EXTRACTION WELL AND NAME ' ; L & lr-~ -,-- ~ I..* L~ ~' ' --- '~ ...... l---' LINE OF EQUAL METHYL TERT- / //~ ~ i ,. L? ,;' ~.'~-~/ ~._ ~Jt~-~---,,- ~ ~'~'./ 1~ ;-~.ZL~j ~ BU~L ETHER (MTBE) ' ~' [ ' ~ '~ "' ' ,'~=j-~j"IB-176L · - , . , CONCENTRATION (in pUL; ,.-168L. ~~80L'~-'~ :-~;J-~ ]~[~ dashed where inferred) ! // /'L ......... ~---~_.:_.J o~:~.¢~B%126L.. %~, [:j ' =. ........ -¢:~ ...... ~[ ,-1!~~~l~: FL- '--I ,~, MTBE METHYL TERT-BU~L ETHER , ((,_L~_: .... :~ .... b ........... ;'k .~.~ ~_~ o~,~ .~... ~.~.~. ~.~,o.) ~ .. ~ '-q;ll~ L, b_.~_i bgs BELOW GROUND SURFACE k%% j ~/~'C--~'- t~ ~I 1~1 ..... '~:FF~--;-i---:'-n~I~II'¢--~Z~' I D/, k I~ ~11' i ~g/L MICROGRAMS PER LITER ~::::k:=--:~':~:,~--: .... J-,-::: .................................. ~'=.~'~.~~,F~*~];ll( ')' '~ ALL CONCENTRATIONS SHOWN IN pg/L. .... "-" '-' '~''' "-' "~':'::~J.,,.. ': '::: ': -:=: :'~,'~;'.': ~'%:, ::g,: ~ . ,::: '.7% 27;:;:; ~-;~:;:; ;':::i-'~:! ---,: ~ -'- B-01 )'- <t Z ; < i - -'----" '/~ ~~~ '.~;C)(~('~' ;',~ ~ ~: ; ..... :: ' ;: ....... :-'~'-- ' B-O24L~ 'I ,' ~ , " '~":': .... ~-'-~i ~ : SCALE ' % " ~:- , '- ¢ ~l;' I ; ~ ~ ~ ~ t , , , - ~_., ,..-, , I I MTBE PLUME CONTOURS [ I ~ '~ k , . ~ ' ~ ~ / ~'.:'~?' - ' I ~ " FORGROUNDWATER>140' bgs, , . ~ ~ / .. -' ~ . SHELL BAKERSFIELD REFINERY, ' ' ~ ' ~"' J I ~ LL -- ~ i( L ' ~ - Z: ~~- comor.uo. ,, BAKERSFIELD, OAUFORNIA / '''~:' ~ --~' ..... ...... ;r /-,il 920 Sheridan Strut _ (May 2003) a Laramie, ~oming 82070 ----j ] ~. " j, -. ' ~:, '' ' ' .... d D~wn By: BW I Checked By: m s.~: ,,,=soo, j Date: 07/28/03 m.ef: 077MTBE0803L 'h ! ..4. I-2 ROSEDALE HIGHWAY CHARITY AVENUf"~RUFfVALE EXTENSION) AREA 94- AREA 92 0 0 :() 0 0 :] U-: AREA 91 iO () . c STREET °°°/, o.i u '() i: :; I..)> , I -- f.l[~] r-i' :,'_ L, cc., 0 0 0 O' O' ¢}'0 .... I ,-,.. :n,, c: I/ C-) f'h ' . ' - ~ x "', . ~i -' - ,,i 'Iii ...... :-:~ _._/j, i . _, ......... ~ 0 0 ~ i,~ [:T' -1 ~ , ~ . ~) I;, ~1 I t ) ~ ,~ ~ - -' Il 1~ ~-' ~x I.'~000()0!I, ' - .... u;--:7-:: '.[~,~::=~:::--}0 t;'O C [) ? .. .: - _ AREA 93 EXPbANA ?ION OL~12 WATER SUPPLY WELL AND NAME (showing MTBE concentration in microgroms per liter) MTBE METHYL TERT-BUTYL ETHER pg/L MICROGRAMS PER LITER PROPERTY BOUNDARY NOTE: ALL CONCENTRATIONS SHOWN IN pg/L. TriHydro Corporation 920 Sheridan Street Laramie, Wyoming 82070 Drawn By: BW I checked By: j,R I Scale: 1"= 600' o 6oo ft. I ~ I SCALE FIGURE g MTBE RESULTS FOR NEARBY WATER SUPPLY WELLS, SHELL BAKERSFIELD REFINERY, BAKERSFIELD, CALIFORNIA (May 2003) I Date: 08/04/03 I Ref: 077MTBEH0503 ! ROSE;DALE HIGH~,'IAy "' '-',- '"- 'J {;:" i ~'J': ~t ,',~ ~ J'- ~ t-i ~ ~ l j , J ?.S 4 J-] aQ ~---- (~ ~;~:: B * ,3-121M<o.s MONITORING WELL AND NAME / /,11~ ~ ~ ,~ ~ ~._ L_~ ~ ~1 5 ~ , , j //~___:~ .... [' <O.~ ' /~ .l~[u~ j~j ~ .... .;. ' (showing benzene concentration ' ' 'q . ..... :];~ T,A-' · ~ ..._~ , in micrograms per liter) ....... ~i'~'LJ o B-121~ -I- :,"--'[' ----::'-~ ~ / ' ' ~ [W-08 EXTRACTION WELL ANB NAME ~,~~OU. _,,. ~-~ EW_0~L~:-7---.], '~. ~0j.~ ...... ¢ffF~ CONCENTRATION (in ,eL; / ~_;; I J ,¢¢~ 'J/ · ~] ';=L d,'. ...... " J I . &l r- [~ ' , ~ I LINE OF EQUAL BENZENE //,¥ / / // '. ~ ,. ; ~~-~r202'U---'ll'll ~ ~ r ~ ~ E' I--' ~ t I .~ dashed where inferre¢ I ........ . .................... /'t I~ A~NU~ ~FRUIW~E ~NSION) L__ c ~E~ "' '~-i '. pg/L MICROGRAMS PER LITER ~~'; ~.-/' ~ <O.'~' 'I'B-170U ~'r:B-'150M ..... [ _._ Ill,ii~,oc) ~' ~ .i, I -J ~/', I', · - I - ~ ~=-~~'.¢/~%Z~¢'1 J r' ''i ~LL CONCENTRATIONS SHOWN IN pg/L. I ..... . 08M i= ' ,, ': ~ u ~, ' ~ ' <05 ~ ~ ' ' ' , < ' - 3400 / 7,.:~ :' L~ ,,., . ~ .,- - :1 r ', ', ~ ,' ,.-4;:t,~ i u-~UUM ~ / -~~~~~ ~ ,.~.... ~:. o~: .,. ~, . - ..... I'0.' lU, / ~~%~ ..:,., ~ ~;-:;~( :,, "' ~ ' ~''~ : .r )~ J %~ ~ ~ A~e:[ ¢t k~J :~ %-/ .f~ %-J "*-) '~)OOOC)OIj~'~ ~J-~ //Z"J 0 600 ft. SCALE . ,, ' .... / t I j . '.- -~,1~: - ~'::i ~ ~u: ..... .,h : .... ' _,: ~'o ' . j~ ,, FIGURE ~0 . ] , ,.--- , /,';: ', BENZEN~ PLUME OONTOURg ~ ' ; I x~ .., /-'x ,. -~ .... * ", /.,:':' ' I ~ ~ FOR GROUNDWATER~110' I ; ' i ~" '" '" ""' '-' '~' 1,4':' -I j j = SHELL BAKERSFIELD REFINERY, I H .... : ~ ~ : .~ -- .>: ~,~ Corporation BAKERSFIELD, CALIFORNIA .L ~ .... -: '~ :: .- ~. J :~: ~lJ C ::: ~o 8h,~d,~ SV~t ' (~ay 2003) j i._~.,. .... Laramie, ~oming 82070 ~i l'-~ 1 ---~ I F ,I I-' I i-'~ ~ ..... ': ~ "~ l -~ F ~ ~i I I 28~ p.[] ...r;'i~¢'~'-----~I'' ¢ ~ 1.1 (showing benzene concentrotion ///7I k,.~ ~., __lijE1 ~ ~ ./. ~~', :B~-~:___[[///~ ~' ..... o. ] t '" I 'EW-09 EXTRACTION WELL AND NAME ,: , ,,~ e~e~.~..~~~. t~ ¢'--.A .~-o~~°,..~ t..?'i;....; ~F2~8-~ ........ ~[ ~ '- ,J, -- . '-:- ~ .-~F --~ -' ' ~h~d ~h~r~ i.f~d~CO"CE~T~*T~O" ----f~: ] 'i' .- M ~x / t- 0.6 ....... · <06 2E i~ B-167M > '- .*' ~ - ~ .... · .... : - ..... I -[ - I tit: 't--':[t ¢ ,:qB-1.85U · [,'B~88M %~~ ,.,.,.-,-,?,.-.~.'.*:1~ NOTE: , ,,- .... - .~ , .6._ : 0.6 [ '"-- -,E) O ~¢ ¢;" ~' -~ -i eB_115L¢---F-¢~E-:73= :::%~B_O52M_.~.-~L L~__~____~' .__~. %-' ,( ~RS~DP6/~ __, ~ %' ..... ~= = .~::.:: ..... L Z J-% :t'::-~'eE%~:' '~ ...... ~: ~ S:': '::]::~ :(~-) 7'-:7'~:~::~.';~ :'.~f :~E'' ;E:E'7;~E'~ ;: ~ y_ _ ~ u: :~'~~_:.'~~.~ _~:~: _.;~_ _1~E;7~E~ ~~ I:¢¢E~ :.,;4:,4-?. ' ' ' h~ ~:l:?.f:;::=~:~=~-:..{_:: :: ,::¢:~q::-::::::::::::::::::::::::::: '.1 , <-- 1<06 [' · / I B-41L....~O Ib~ ! .- ' /~ ~1~ l' I u.~ I <05 --~~ -~ ~ .... ~ ," '~ I ~ :~--'. j,- .... ,. ~ f ..... 3--' ], i" ~¢ B-oggL~ ~f . i .. I B 'IOOLi --- Fl, , r,--.~ i - ~ <06 ~ ,.~ ' ~'; -- .., ~ r, r, .u r~ - I~ - ,. ~:;'~ 'h I j~ ~.~r-- ~ ~-. ::. _. · _- _ :,..c~~ .,. ~~{ FIGURE 11 .I ~ ~ , . , ~:. ~ ' ~-' :~''- 'I ~ , BENZENE PLUME CONTOURS 'i J ~ ' k J,(~ ' / ~ .... :' ' ' ' .,. ,. ii - , ) ¢ , .?... _.. , I ~ Ill ~ ~1 i'; .- -- , r ~:;;~.. ~' ~/i TriHydro . SHELL BAKERSFIELD REFINERY, [ ~ I~L .... J I ~ _J ~'~ ..... ?:: ~ ~ Corporation ' BAKERSFIELD, CALIFORNIA :~ : - _ ~- - *,1 ',':" ~ ( , .... 920 SheridanStr~ t (May 2003) ~'"--~ -- ..... "-'-' ' "; - : ¢ " . ~':i- I Laramie, ~oming 82070 ;:I --;,-'_n. _ [ __ I:I - r~ ,:, L.. I : ..... pal .... , '~ ~ Fl-' I,t L:-I L[I ,- e,. -: .... ! , ·B-128L<o.s MONITORING WELL AND NAME ~ L, J, --~, ' '-- ' ...... · ~ [, (~B~_.128~ '~ ~' Z "'~ ~ ' '~' " I' in microgroms per liter) lTL I //// ~ ~ O. ~F--~]" ~t/ / CONCENTRATION (in .... :,.t_ ," ~.~.' ~ , <0,5 ...... ~/I, ] ' ' [%~ doshed where inferred) / /.// '~'~ I I fB-168L, ~~U~'[F .... I;F¢--- Lz-~ ¢1 ~ ~, '1 .... //.// i ~ :,; t.0~ -~°'~'~---JL--:; ~l'f( ~ ( h ~ L .... J I I bgs BELOW GROUND SURFACE --x---' "l/':'~~ ~" [:~ .... ':i ...... r --ti .... Ii '.(-~ :-~ ~" [ ~ i pg/L MICROGRAMS PER LITER ' ~'~bu'/ ~ - ; ] F/ <0 ~ ' t ;. - ..... r i ~¢ ', B_130L2.B~130L1 ~ ''~~-~1. <05 Nk , / , r 'B-120L /I "u -I ii. I ~ ~ B-129L1 o; B-12¢Lid'k;u .... %%1 .. ~' .,- ~1 ~~~/// . .+, i~''',..~, i_8-~s~:1 , · ~1! ~ ~t ~' ~;,;'(~ ~~,,~oo 1 '"~XI'0'6''' I 2BE ~95L % B-188L q' ~''-`Z- ~:7'--<0.5 . ~ ~:~'E- , .... .' BB~? 7~~r-- k. '~ ~i"'r'4 ~~~" 1~ % ~" '¥ ' ' :~¢:, NOTE: .,. X~' : B-196L%/~=: =- .... ---~__ ?-~" % :~ '~ .... I B-{177~ '~~. ~: ~/'i I,;. I ALL CONCENTRATIONS SHOWN IN pg/L. ~ ~ ~. ~ ..... -L__I LEt, <".~ I <0.~ ~i ~~'%-/','. z' r/1 ' . BTO''Lc r <u ___:': , t '~~;'1.16LI ' i ~ t ~~ ~ ' .... I/1~ /~740~ :,~~~5M .... ,~:: I I , *:; ~-' OyC 0 I I <U I ~- 01 {' i ~.~-oo7 L ,, L,.'o' i ~1 m , ~ ~-~ O'& , ,~ -: .............. -: - , ~'i-, ! I ~-o~ ,, % ~ , ~ < 5 I ~/ ~ / ~ I ~ ~ " - ~ ~' ~ '- %"~---~i~-~ , o .... 0 'D ~ -,- '~ ~---- ' " " r/ : :: :: - ' 3 - -~ - 6~ - ~ ,c .... ,--- -,, .... . . ,E~,E~ *~,uE ~ 0 600 ft. ~i ' "~ ': - ~'~ .... ~:v ..... : ...... ~',p',~C'~r--~' , " L j//~j SCALE i B-O24Le ~ <0.~ . '::: ~' : :: /', m : ~ ~ .. ~ .:: : .. ~ :,~. BENZENE PLUME CONTOURS i ' ,I , k / , :~ r h ,/ .... ~ I ~ FOR GROUNDWATER >140' bgs, ~ r ; ,, ' ~/ , ~ ' T, -~'.l "/- T ] ~ ~ ; SHELL BAKERSFIELD REFINERY, ~ ~;, ~, i ' -,' ~~ BAKERSFIELD, CALIFORNIA I h, j ~ i . ~i ...... ~ h~ Corporation I :: L~::'--: ,~ :_ --- ;'[ :':-~ Hi ( .... 920 Sheridan St~t ~ (May 2003) , : _ ,, ' -~;"---~ ' :~ :- : ...... ~') . III Laramie, ~oming 82070 CHARffY AVENU~'~"RUrfi/AL£ EXTENSION) AREA 94- ~: ARBA gl 0'": OC') c.(.-O, j d :ooo] 'i " ? -r'--"" II ! ~'_-:'~.'_i ' '_J"L:"i_Z'~F-~==z'~-: ¥~:t~" '.~--;' ':w,"--'-':!'?;t?-%hg: ?-/C-;x; i--, d','!??-:Z.P¥',~5::,:,":,:,:-',::_-.:,:r-;5:8_,?3~;-?:!;u; 5~ ~_:;:! _-' --.~ ; ',::;--,:i :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: I --iC J/ ': : JJ~----q ~'////~'_-~llJ L .i-n -'--~1 U,:ll u'~,' I.,¢'rH av',mu~' JJ;~i (-) '. :-',.'-,. :--~- .-~.v-,' !I J I ' I; I ,' ,.--~, ,-_. ,,.:.-:: /I TrlHydro :~ li~ ~ ,' .... it~ 0l:l {:-7 wx:~ :,,_ ri Corporation 01-12 EXPLANA T/ON 920 Sheridan Street I Laramie, W~oming 82070 Drawn By: aw J Checked By: jr. J Scale: WATER SUPPLY WELL AND NAME (showing benzene concentration in microgroms per liter) pg/L MICROGRAMS PER LITER .... PROPERTY BOUNDARY NOTE: ALL CONCENTRATIONS SHOWN IN pg/L, 0 600 ft. I I I SCALE FIGURE 13 BENZENE RESULTS FOR NEARBY WATER SUPPLY WELLS, SHELL BAKERSFIELD REFINERY, BAKERSFIELD, CALIFORNIA (May 2003) ~,,=600' J Date: 08/04/03 J ref: 077BENH0503 m , ~-0~4 /U m ' ' Ulll ...... 1,1'" ' ~ 9 ....... .i ; m *R~ /~ ~ ~t ~-02~ M ~ ~u~o ~ o~ ~ ~ .~ ' OO~ = ~ i I BB-191L/M/L ' ~~:/IIA u ~111 .~-083L/M/U I[ ~1~ :o-~o~ ~ m 1~1 · ' ~ ~ 6 ', j 7 -'tN '%- .... , ww~w I i-'/~ ~-~ ~,,,~[~u~ i ,'~ ,~ll I ~ 'I ....... ,~__ ~: "t( ~=:-d L_:: J .:~ ~ AIR SPAROINO WELL LOCATIONS, 'i~ ~:~. ~ ~ TriHydro ~ SHELL BAKERSFIELD ~EFINE~Y, ~ ~ ~ 4:: I la Corporation ~ BAKERSFIELD, CALIFORNIA , ~ :: ~ ( / ~ ~ Laramie, ~oming e207o A3-02 332.65 ~ A3-02 5/03 B NO 5) E ND I1 X NO TPH ND O) A3-01 5/03 ,, , MTBE ND(l) B ND(0.5) T E ND(l) X ND(2) . TPH ND(lO0) A3-01 \ 35s.s~ FENC~ UNE J\, A3-03 342.7~_ A3-03 5/03 iTBE 9 88 12.2 [ TPH 290 ARE 3 III ~3-o4 5/03 MTBE ND(l) B 3.6 T 1.4 E ND(l) X ND(2) TPH 220 ,3-01 ~$6.64+ ,;/L ~TBE B T E X FPH ND EXPLANA ?~ON MONITORING WELL AND NAME (showing potentiometric-su rfece elevotion in feet obove meon sea level) LINE OF EOUAL ELEVATION OF POTENTIOMETRIC SURFACE (in feet obove meon seo level; doshed where inferred: hochures delineote depressions in the potentiometric surfoce) DIRECTION OF GROUNDWATER FLOW MICROGRAMS PER LITER PROPERTY BOUNDARY METHYL TERT BUTYL ETHER BENZENE TOLUENE ETHYLBENZENE XYLENES TOTAL PETROLEUM HYDROCARBONS NOT DETECTED NOTE: ALL CONCENTRATIONS SHOWN IN IJg/L. 0 300 ft. SCALE TriHydro Corporation 920 Sheridan Street Laramie, t~oming 82070 Drawn By: BW I Checked By: ~R I scale: 1.= 300, FIGURE 15 POTENTIOMETRIC MAP FOR GROUNDWATER AND GROUNDWATER ANALYTICAL RESULTS, AREA 3, SHELL BAKERSFIELD REFINERY, BAKERSFIELD, CALIFORNIA (May 2003) I Date: 07~24~03 'l Reft 077AREA3PS0503 August 5, 2003 TriHydro Corporation 920 Sheridan Street (307) 745-7474 Laramie, Wyoming 82070 FAX: (307) 745-7729 Mr. Geoffrey Anderson California Regional Water Quality Control Board Central Valley Region 1685 E. Street Fresno, CA 93706-2020 RE: Second Quarter 2003 NPDES Monitoring Report Revised Monitoring and Reporting Program No. R5-2002-0085 Equillon Enterprises, LLC, dba Shell Oil Products US, Groundwater Cleanup System Shell Bakersfield Refinery, Bakersfield, California Dear Mr. Anderson: Shell Oil Products US (Shell), is submitting the Second Quarter 2003 NPDES Monitoring Report as required under the Revised Monitoring and Reporting Program No. R5-2002-0085 established for monitoring treated discharge water from the groundwater remediation systems in use at the Shell Bakersfield Refinery in Bakersfield, California. Shell appreciates RWQCB's recent revision to the Monitoring and Reporting permit, allowing the reduction in monitoring frequency of certain compounds. However, we are reiterating the request for altering the reporting schedule as established in the Revised Monitoring and Reporting Program No. R5-2002-0085. On page 5, paragraph 1 under the Reporting section of the document, it states that, "Daily, weekly, bi- weekly, monthly and quarterly monitoring results shall be submitted to the Regional Board within 45 days following the end of each calendar quarter. Annual monitoring results shall be submitted by 1 February of each year." In order to effectively utilize time and resources, Shell's intent is to submit the annual and fourth quarter monitoring results under the cover of a single document each year. Therefore, Shell requests that the schedule for submitting the annual results be modified to correspond to the submittal dates for the quarterly monitoring results (i.e. February 15 of each year). Thank you for your assistance with this project. If you have any questions, please contact me at (307) 745-7474 or Steve Overman Shell Oil Products US at (661) 326-4351. Sincerely, TRIHY RO CO ORATION H.G. 077-014 CC: Mr. Steve Overman, Shell Oil Products US Mr. Gene Freed, Shell Oil Products US Mr. Dan Walsh, Shell Global Solutions US H:\Projects\SHELL\Bakersfield\Final\Letters.03~2Q '03 Cover Ltr.doc TriHydro Corporation 920 Sheridan Street (307) 745-7474 Laramie, Wyoming 82070 FAX: (307) 745-7729 August 5, 2003 Mr. Geoffrey Anderson California Regional Water Quality Control Board Central Valley Region 1685 E. Street Fresno, CA 93706-2020 Re: Second Quarter 2003 NPDES Monitoring Report for MTBE Groundwater Remediation Project Order No. R5-2002-0085, Shell Bakersfield Refinery, Bakersfield, California Dear Mr. Anderson: In accordance with the official National Pollution Discharge Elimination System (NPDES) permit adopted by the California Regional Water Quality Control Board, Central Valley Region (RWQCB), Waste Discharge Requirements for Equilon Enterprises, LLC DBA Shell Oil Products US, Groundwater Cleanup System, Kern County, Order No. R5-2002-0085, dated June 5, 2002, and revised December 6, 2002, Shell Bakersfield Refinery is submitting this letter report summarizing the second quarter (April through June) 2003 NPDES activities and monitoring results for the methyl tertiary butyl ether (MTBE) Interim Remedial Measures (IRM) groundwater remediation project at the Shell Bakersfield Refinery and Shell Bakersfield Terminal, located in Bakersfield, California. 1.0 BACKGROUND INFORMATION During the mid to late 1990s, both the Shell Bakersfield Refinery and the Shell Bakersfield Terminal had releases of MTBE and other petroleum hydrocarbons to groundwater. Shell Oil Products US (Shell) began operation of soil vapor extraction and product skimming remediation systems at the Shell Bakersfield Terminal, and constructed two interim groundwater extraction and treatment systems that began operation in August and October 2001, respectively. The locations of the interim groundwater extraction and treatment systems, designated as IRM-1 and IRM-2, are shown on Figure 1. A detailed evaluation of the groundwater cleanup progress, trends, groundwater analytical results, and plume containment are presented in the quarterly groundwater reports submitted to the RWQCB. The next report, Second Quarter 2003 Groundwater Monitoring Report, Shell Oil Products US, Bakersfield, California, will be submitted to the RWQCB on or before August 15, 2003. The IRM-1 treatment system consists of groundwater extraction wells positioned at the leading edge of the plume, a granular activated carbon (GAC) treatment system, and associated piping and appurtenances. IRM-1 began operation on August 27, 2001 and discharges to the Calloway Canal. Extraction wells currently included in the IRM-1 treatment system are wells EW-3, EW-4, EW-5, EW-6, EW-7, EW-12, and EW-13 (Figure 1). Wells EW-5, EW-6, and EW- H:\Projects\SHELL\Bakersfield\Final\077-O28\NPDES 2Q '03.doc Mr. Geoffrey Anderson August 5, 2003 Page 2 7 were added to the system in November 2001. Two additional wells, EW-12 and EW-13 were added on November 19, 2002. The IRM-2 treatment system consists of extraction wells positioned near the center of the plume along Charity Avenue, a GAC treatment system, and associated piping and appurtenances. IRM-2 began operation on October 3, 2001 and also discharges to the Calloway Canal. Extraction wells currently included in the IRM-2 treatment system are wells B-149, EW-8, EW-9, EW-10, and EW-11 (Figure 1). Wells EW-8 through EW-11 were added to the IRM-2 system in December 2001. 2.0 INFLUENT AND EFFLUENT MONITORING PROGRAM On October 16, 2001 Shell submitted a site-specific NPDES permit, Report of Waste Discharge for the NPDES Permit Application for the Shell Bakersfield Refinery, a Division of Shell Oil Products, to the RWQCB. During the interim, discharges from IRM-1 and IRM-2 were covered under two separate orders from the RWQCB. The operation and discharge from IRM-1 was permitted under the General Order 5-00-119, and the operation and discharge from IRM-2 was permitted under Order 91-250. On June 5, 2002, Shell received an official permit, Order No. R5- 2002-0085 as adopted by the California RWQCB, governing the operation and discharge of both IRM-1 and IRM-2. Shell requested a clarification regarding the reporting frequency required under the Monitoring and Reporting Program No. R5-2002-0085 in correspondence dated September 24, 2002. In response, the RWQCB modified the monthly and quarterly reporting schedule and issued a Revised Monitoring and Reporting Program No. R5-2002-0085 dated December 6, 2002. Influent samples from each system are required on a monthly basis. Note, that Shell collected influent samples bi-weekly through May 2003, and monthly thereafter. Per the permit conditions, analytical results from the additional sampling are included on Tables 3a and 4a. The permit required effluent samples to be collected weekly during the first four weeks after initiation of discharge and bi-weekly after that. According to the Revised Monitoring and Reporting Program No. R5-2002-0085, sampling frequency for the oxygenates including ethanol, methanol, methyl tertiary butyl ether (MTBE), tertiary butyl alcohol (TBA), di-isopropyl ether (DIPE), ethyl tertiary butyl ether (ETBE), and tertiary amyl methyl ether (TAME) may be reduced from monthly to quarterly for the influent samples if they are not detected (at appropriate detection limits) for three consecutive months. The sampling frequency may be adjusted to annually if the oxygenates are not detected in the influent samples for three consecutive quarters. Sampling frequency will revert back to the original schedule outlined within the permit if the constituents are detected in the influeut or the effluent samples. In addition, sampling frequency may be reduced in the effluent samples for the oxygenates, total petroleum hydrocarbons (TPH.), as well as, benzene, toluene, ethylbenzene, and total xylenes (BTEX) if three consecutive bi-weekly sampling events result in non-detectable concentrations at appropriate detection limits. Sampling frequency will revert back to the bi-weekly schedule if the constituents are detected at appropriate detection limits in the influent or the effluent samples. H:\Projects\SHELL~Bakersfield\Final\077-028\NPDES 2Q '03.doc Mr. Anderson August 5, 2003 Page 3 Influent samples are collected from each of the extraction wells and then an aggregate sample is collected before the groundwater enters the treatment system. The samples are representative of the nature of the influent. Effluent samples are collected just before the processed water is discharged into the outfall, and are representative of the nature of the effluent discharge. Sampling ports were installed in the extraction well, influent, and effluent lines of the IRM treatment systems. Ports were also installed within and between the GAC units. Table 1 summarizes the location and purpose for each sample port. The following protocols were used to collect influent and effluent samples: Label sample bottles with proper sample identification; Locate the appropriate sampling port; Open sample spigot and discharge water for approximately 30 seconds; Position the sample container beneath the sample spigot and collect the water sample from a uniform, laminar (Iow-flow) stream; ensure that samPle containers are completely filled and that no air bubbles are present in volatile organic compound (VOC) sample vials; Enclose the sample jars in bubble wrap inside a Ziploc®-type bag. Place the bag in a opaque cooler filled with ice; Proceed to the next sampling port and repeat the procedures described above; Seal the cooler, complete the laboratory Chain-of-Custody form, and overnight shipping label; and Deliver the sample cooler to the analytical laboratory via overnight courier. 3.0 IRM SYSTEMS MONITORING RESULTS Analytical results for each of the remediation systems are summarized below. 3.1 IRM-1 Results As required by revised Order No. R5-2002-0085, influent and effluent samples collected from IRM-1 are analyzed for the following parameters: · Total petroleum hydrocarbons - gasoline range organics (TPH - GRO); · Benzene, Toluene, Ethylbenzene, and Xylene (BTEX); · Ethanol and Methanol; H:\Projects\SHELL\Bakersfield\Final\077-028\NPDES 2Q '03.doc Mr. Anderson August5,2003 Page 4 Methyl tertiary butyl ether (MTBE); Tertiary butyl alcohol (TBA); Di-isopropyl ether (DIPE); Ethyl tertiary butyl ether (ETBE); Tertiary amyl methyl ether (TAME); and Total dissolved solids (TDS). Samples collected from extraction wells EW-3 through EW-7, EW-12, and EW-13 are analyzed for the same parameters listed above with the exception of TDS. Influent and effluent water is monitored for general water quality parameters including pH, specific conductivity, temperature, and dissolved oxygen. The inline dissolved oxygen meter and the water quality meters at each of the IRM systems are routinely calibrated. Calibration is completed weekly during system monitoring and maintenance. The calibration procedures follow the guidelines established by the manufacturers of each meter. Total flow through IRM-1 is recorded daily. Table 2 presents the monthly flow statistics for the IRM-1 system for the second quarter 2003. The maximum daily flow allotted for the IRM-1 system under the permit is 500,000 gallons. The highest daily maximum flow measured in the second quarter was 180,072 gallons recorded on April 12, 2003. Total monthly flow from IRM-1 was approximately 3,744,173 gallons for April; 3,774,528 gallons for May; and 3,519,547 gallons for June. Extraction Well EW-4 was shut down on June 6, 2003 due to insufficient groundwater within the well, the result of dropping groundwater levels. The well was placed back on line several times through the end of the quarter but did not contain enough water to sustain a steady flow. Well EW-5 did not contain sufficient groundwater over this quarter to allow for continuous operation. Therefore, during the week beginning Monday June 16, 2003 and through the end of the second quarter, Extraction Well EW-5 was cycled over a 48-hour period; where the well was online for 24-hours and offline for 24-hours. Analytical results for the second quarter 2003 are summarized in Tables 3a, 3b, and 3c. Organic data are summarized in Table 3a. Inorganic and field measurement data are summarized in Table 3b. Summary statistics for the analytical and field measurements are provided for the IRM-1 system in Table 3c. The monitoring of total lead has been discontinued based on the influent and effluent monitoring criteria detailed in Order No. R5-2002-0085, that states, "if lead is not detected in the first two sampling events then testing may be discontinued thereafter". Specific conductance and pH in the influent and effluent samples have remained relatively stable throughout the quarter and did not exceed allowable limits. Laboratory analytical reports for the second quarter are included in Attachment A of this report. 3.1.1 Extraction Well Results MTBE was detected during each of the bi-weekly sampling events in groundwater samples collected from extraction Well EW-5 during the second quarter, with concentrations ranging from 2.0 pg/L (5/7/03) to 30 pg/L (6/11/03). A single detection of MTBE was reported in Well EW-6 H:\Projects\SHELL\Bakersfield\Final\077-028\NPDES 2Q '03.doc Mr. Anderson August 5, 2003 Page 5 during the June 11, 2003 sampling event at a reported concentration of 1.5 #g/L. All other constituents analyzed were reported below laboratory detection limits in the groundwater samples collected from the extraction wells feeding into the IRM-1 system. 3.1.2 Influent Results During the second quarter 2003, MTBE, TBA, and TPH~GRO were measured above the laboratory reporting limits in the influent samples collected from IRM-1 (SP-1). MTBE ranged from 300 ~g/L (4/14/03) to 390 #glL (6/23/03). TBA was reported in the June 9, 2003 sample collected from the IRM-1 influent at a concentration of 22/~g/L. TPH-GRO concentrations were reported as 170 #glL in April, non-detectable in May, and 280 pglL in June. Analyzed constituents were not reported above the laboratory detection limits in samples collected from SP-2 or SP-3 during the second quarter. 3.1.3 Effluent Results During the second quarter 2003, all constituents analyzed from the effluent at IRM-1 were reported below the laboratory detection limits. Effluent limitations were not exceeded for any of the constituents or field parameters. Acute bioassay testing of the effluent samples collected from IRM-1 is conducted quarterly per permit requirements according to specifications described in the United States Environmental Protection Agency (USEPA) document EPAI60014-901027F. Bioassay samples consist of a 24- hour composite collected from the last discharge point before entering the receiving water and are representative of the quality of the discharge. Because the Calloway Canal is an ephemeral stream, no dilution is required. Test species for the bioassay analysis are fathead minnows (Pimephales promelas). Bioassay samples collected on June 23, 2003 had a survival rate of 95%, which is within the permit limitations. Bioassay results for IRM-1 are provided in Table 3b and laboratory reports are included in Appendix A. 3.2 IRM-2 Results The influent, effluent, and extraction well samples collected from IRM-2 are analyzed for the same analytical list as those presented in Section 3.1 for the IRM-1 system. Infiuent and effluent water is also monitored for general water quality parameters including pH, specific conductivity, temperature, and dissolved oxygen. Total flow through IRM-2 is recorded daily. Table 2 presents the monthly flow statistics for the IRM-2 system for the second quarter 2003. The maximum daily flow allotted for the IRM-2 system under the permit is 500,000 gallons. The highest daily maximum flow measured in the second quarter was 191,362 gallons recorded on April 12, 2003. During the second quarter of 2003, the total monthly flow from IRM-2 was approximately 4,292,496 gallons for April; 4,048,776 gallons for May; and 4,536,461 gallons for June. Analytical results for the second quarter 2003 for IRM-2 are summarized in Tables 4a, 4b, and 4c. Organic data are summarized in Table 4a. Inorganic and field measurement data are summarized in Table 4b. Summary statistics for the analytical and field measurements are ~ H:\Projects~SHELL~Bakersfield\Final\O77-028\NPDES 2Q '03.doc Mr. Anderson August5,2003 Page 6 provided for IRM-2 in Table 4c. The monitoring of total lead has been discontinued based on the influent and effluent monitoring criteria detailed in Order No. R5-2002-0085, that states, "if lead is not detected in the first two sampling events then testing may be discontinued thereafter". Specific conductance and pH in the influent and effluent samples have remained relatively stable through the quarter and did not exceed allowable limits. Laboratory analytical reports for the second quarter are included in Attachment A of this report. 3.2.1 Extraction Well Results From April through June, MTBE was detected in at least one sample collected from extraction wells EW-8, EW-9, and EW-11. Detected concentrations in the extraction well samples ranged from 1.2 #glL (EW-11, 4/23/03) to 13,000/~g/L (EW-8, 5/7/03). TPH-GRO was detected in the groundwater samples collected from EW-8 ranging from 640 #glL (6/11/03) up to 4,000 #glL (5/7/03). TBA was only reported above detection limits in the sample collected from Well EW-9 on April 9, 2003 at 11 #glL. A single detection of ethanol (Method 8260B) was reported above detection limits in the groundwater sample collected from Well B-149 on May 7, 2003 at a concentration of 150 pglL. The remainder of the analyzed constituents were not detected above the laboratory reporting limits. 3.2.2 Influent Results During the second quarter 2003, MTBE, TBA, and TPH-GRO were measured above the laboratory reporting limits in the influent samples collected from IRM-2 (SP-5). MTBE ranged from 290 #glL (5/5/03) to 690 #glL (5/19/03). TBA concentrations were reported at 57 #glL on May 1 and 29 #glL on June 30, 2003. TPH-GRO concentrations were detected at 130/~g/L in April, 120 #glL in May, and 210 #glL in June. Constituents were not reported above the laboratory detection limits in samples collected from SP-6 or SP-7 during the second quarter. 3.2.3 Effluent Results None of the analytical constituents were detected above the laboratory detection limits in the effluent samples collected and analyzed from IRM-2 during the second quarter 2003. Effluent limitations were not exceeded for any of the constituents or field parameters. Acute bioassay testing of the effluent samples collected from IRM-2 is conducted quarterly per permit requirements according to specifications described in the United States Environmental Protection Agency (USEPA) document EPA/600/4-90/027F. Bioassay samples consist of a 24- hour composite collected from the last discharge point before entering the receiving water and are representative of the quality of the discharge. Because the Calloway Canal is an ephemeral stream, no dilution is required. Test species for the bioassay analysis are fathead minnows (Pimephales promelas). Bioassay samples collected on June 23, 2003 had a survival rate of 100%, which is within the permit limits. Bioassay results for IRM-2 are provided in Table 4b and laboratory reports are included in Appendix A. H:\Projects\SHELL\Bakersfield\Final\077-028\NPDES 2Q '03.doc Mr. Anderson August 5, 2003 Page 7 4.0 RECEIVING WATER, CANAL, AND STORMWATER POND MONITORING PROGRAM As required by revised Order No. R5-2002-0085, receiving, waters from an upstream (R-l) and a downstream (R-2) station should be monitored monthly whenever possible for the following parameters: estimated flow, dissolved oxygen, pH, temperature, electrical conductivity, and turbidity. Receiving waters should be collected and analyzed from each station and analyzed for TDS once each quarter. The receiving water stations within the canal remained dry during the second quarter of 2003. Water conditions within the Calloway Canal are inspected weekly. Field notes are recorded documenting the presence or absence of: Floating or suspended matter; Discoloration; Bottom deposits; · Aquatic life; Visible films, sheers, or coatings; Fungi, slimes, or objectionable growths; and Potential nuisance conditions. Field documentation recorded during the second quarter 2003 is included in Appendix B.' Order No. R5-2002-0085 requires that a minimum freeboard of two feet shall be maintained in the onsite stormwater management pond at the refinery, when it is in use. During the second quarter 2003, no discharge from either IRM system was directed to the stormwater management pond. 5.0 PROJECTED ACTIVITIES The North Kern County Water District requested that the discharge waters be diverted from the Calloway Canal during the third quarter 2003, in order to remove weeds accumulating in the canal. In the interim, effluent water from the IRM systems will discharge to the stormwater management pond at the refinery. The flow will be temporarily redirected beginning August 1, 2003. The RWQCB was notified of this change in correspondence dated July 21,2003. Shell will continue monitoring the IRM systems per the requirements established in the Revised Monitoring and Reporting Program No. R5-2002-0085. In addition to routine sampling and monitoring, Shell will submit and analyze samples from each of the IRM systems for dioxins in July 2003. Samples will be analyzed for each of the 17 TCDD congeners listed in Table 4 of the Policy for Implementation of Toxics Standards for Inland Surface Waters, Bays, and Estuaries of California (Implementati.on Policy). H:\Projects\SHELL\Bakersfield~Final\077-028\NPDES 2Q '03.doc Mr. Anderson August 5, 2003 Page 8 The third quarterly report for 2003 will be submitted to the Regional Water Quality Control Board on or before November 15, 2003. Questions and comments regarding this quarterly report should be directed to Mr. Steve Overman (Shell Oil Products US) at 661-326-4351 or to Linda Barnes (TriHydro Corporation) at 307-745-7474. gist #529 2003 077-028 CC: Mr. Gene Freed, Shell Oil Products US Mr. Steve Overman, Shell Oil Products US Mr. Dan Walsh, Shell Global Solutions H:~Projects\SHELL~Bakersfield\FinaR077-028\NPDES 2Q '03.doc TABLES H:\Projects\SHELL\Bakersfield\Final\077-028\NPDES 2Q '03.doc Table 1 · Sample Locations, IRM Treatment Units, Shell Bakersfield Refinery, Bakersfield, California. IdentificationTreatment Number Unit Port Location Sample Purpose Influent manifold prior to Influent sample from extraction wells SP#1 IRM-1 GAC #1 (Combined) IPiping manifold between SP#2 IRM-1 GAC #1 and GAC #2 Effluent sample from GAC #1 Piping manifold between SP#3 IRM-1 GAC #2 and GAC #3 Effluent sample from GAC #2 Effluent discharge line between GAC #3 and SP#4 IRM-1 iCalloway canal Effluent sample from treatment plant Influent manifold prior to Influent sample from extraction wells SP#5 IRM-2 GAC #1 (Combined) Piping manifold between SP#6 IRM-2 GAC #1 and GAC #2 Effluent sample from GAC #1 Piping manifold between SP#7 IRM-2 GAC #2 and GAC #3 Effluent sample from GAC 2 ,In the effluent discharge line between GAC #3 and Stormwater Management SP#8 IRM-2 Pond Effluent sample from the treatment plant h:~orojecls~shell]bakersfleld\final\077-028\Sample Locations_Table 1.xls\Sheetl Table 2. Flow Statistics for IRM-1 and IRM-2, Second Quarter 2003, Shell Oil Products US, Bakersfield, California. Highest Monthly Total Daily Average Monthly Median Monthly Flow Location Year Month Maximum (gpd) (gpd) (gallons) IRM-1 IRM-2 2003 April 180,072 124,806 123,912 3,744,173 2003 May 150,048 121,759 121,176 3,774,528 2003 June 129,744 117,318 117,101 3,519,547 2003 April 191,362 143,083 145,080 4,292,496 2003 May 166,464 130,606 136,224 '4,048,776 2003 June 170,352 151,215 151,834 4,536,461 ACCESS - rptQtlyFIow Stats_Table 2 Page 1 of 1 Table 3a. IRM-1 Analytical Results, Second Quarter 2003, BTEX, MTBE, Oxygenates, and TPH, Shell Oil Products US, Bakersfield, California. EPA Method EPA Method 8015M 8015B Sample Date Ethyl° Location TPH GRO Methanol Ethanol Ethanol Benzene benzene Toluene (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) EPA Method 8260B Xylene o-Xylene MTBE TBA DIPE ETBE TAME (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) Extraction Wells EW-3 4/9/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 4/23/03 ...... ND(100) ND(0.5) ND(t) ND(l) ND(l) ND(l) 5/7/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 6/11/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) EW-4 4/9/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(f) ND(l) 4/23/03 .... ND(f00) ND(0.5) ND(l) ND(l) ND(l) ND(l) 5/7/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) EW-5 4/9/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 4/23/03 .... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 5/7/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 6/11/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) EW-6 4/9/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 4/23/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 5/7/03 ND(100) ND(100) ND(100) ND(100). ND(0,5) ND(l) ND(l) ND(l) ND(l) 6/11/03 ND(100) ND(100) ND(100) ND(100) ND(0,5) ND(l) ND(l) NO(l) ND(l) EW-7 4/9/03 ND(100) ND(t00) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 4/23/03 .... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 5/7/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 6/11/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) EW-12 4/9/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 4/23/03 ...... ND(100) ND(0,5) ND(l) ND(l) ND(l) ND(l) 5/7/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 6/11/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) EW-13 4/9/03 ND(100) ND(100) ND(100) ND(100) ND(0,5) ND(l) ND(l) ND(l) ND(l) 4/23/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 5/7/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 6/11/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) 3.0 1.6 2.0 30 ND(l) ND(l) ND(l) 1.5 ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(10) ND(10) ND(10) ND(10) ND(10) ND(10) ND(10) ND(lO) ND(10) ND(10) ND(10) ND(10) ND(10) NO(m) NO(10) ND(10) ND(10) ND(10) ND(10) ND(10) ND(10) ND(10) ND(10) ND(10) ND(10) ND(10) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) NO(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2~ ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) Influent SP-1 4/14/03 170 ND(100) ND(100) ND(500) ND(2.5) ND(5) ND(5) ND(5) ND(5) 300 ND(50) ND(10) ND(10) NO(10) 4/28/03 ...... ND(500) ND(2.5) ND(5) ND(5) ND(5) ND(5) 340 ND(50) ND(10) ND(10) ND(10) 5/12/03 ND(100) ND(100) ND(100) ND(200) ND(l) ND(2) ND(2) ND(2) ND(2) 320 ND(20) ND(4) ND(4) ND(4) 5/27/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 310 D ND(10) ND(2) ND(2) ND(2) 6/9/03 280 ND(100) ND(100) ND(200) ND(l) ND(2) ND(2) ND(2) ND(2) 320 22 ND(4) ND(4) ND(4) 6/23/03 ...... ND(200) ND(l) ND(2) ND(2) ND(2) ND(2) 390 ND(20) ND(4) ND(4) ND(4) Influent GAC 2 SP-2 4/14/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 4/28/03 ...... ND(100) ND(0.5) ND(l) ND(I) ND(l) ND(l) 5/12/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(10) ND(10) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ACCESS - rptQtly Table 3a Page 1 of 2 Table 3a. IRM-1 Analytical Results, Second Quarter 2003, BTEX, MTBE, Oxygenates, and TPH, Shell Oil Products US, Bakersfield, California. EPA Method EPA Method 8015M 8015B Sample Date Ethyl- Loc~tion TPH GRO Methanol Ethanol Ethanol Benzene benzene Toluene (pg/L) (pg/L) (pg/L) (pg/L) (~g/L) (pg/L) (pg/L) EPA Method 8260B Xylene o.Xylene M'rBE TBA DIPE ETBE TAME (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) SP-2 Infiuent GAC 3 SP-3 Effluent SP-4 5/27/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(t) ND(10) ND(2) ND(2) ND(2) 6/9/03 ...... ND(tOO) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 6/23/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(f) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 4/14/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(f) ND(f) ND(10) ND(2) ND(2) ND(2) 4/28/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 5/12/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 5/27/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 6/9/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 6/23/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 4/14/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 4/28/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 5/12/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 5/27/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 6/9/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(lO) ND(2) ND(2) ND(2) 6/23/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) Effluent Limitations Highest Daily Maximum 100 3500 NA NA ND(0.5) 29 42 17 2 17 2 5 ~ ND(20) 5 1 5 I 51 Notes: 1 2 pg/L ND() D J NA - sum of MTBE, DIPE, ETBE, and TAME values not to exceed 5 pg/L. - sum of m,p-Xylene and o-Xytene values not to exceed 17 pg/L. - micrograms per liter. - constituent was not analyzed. - constituent was not detected at detection limit in parentheses. - diluted. - estimated concentration. - not applicable; effluent limitations not established in Order No. R5-2002-0085. ACCESS - rptQtly Table 3a Page 2 of 2 Table 3b. IRM-1 Analytical Results, Second Quarter 2003, Inorganics and Field Measurements, Shell Oil Products US, Bakersfield. California. EPA Method 160,1/160.2 Field Location Sample Total Dissolved Solids pH Conductivity Temperature Flow Date (mg/L) (std units) (mS/cm) (°F) (gpd) EPN600/4-90/O27F Bioassay (% Survival) Influent SP-1 Effluent SP-4 04/02/03 -- 6.9 0.35 20 04/04/03 -- 7.0 0.34 19 04/07/03 -- 6.4 0.35 19 04/09/03 -- 6.8 0.35 20 04/11/03 -- 6.8 0.35 20 04/14/03 -- 6.9 0.35 20 04/16/03 -- 7.0 0.33 20 04/18/03 -- 7.0 0,33 19 04/21/03 -- 7,0 0.33 20 04/23/03 -- 6.9 0.33 20 04/25/03 -- 6.8 0.33 20 04/28/03 -- 6.9 0.34 20 04/30/03 -- 6.9 0.34 19 05/02/03 -- 7.0 0.34 20 05/05/03 -- 7.0 0.34 20 05/07/03 -- 7.0 0.34 20 05/09/03 -- 7.0 0.35 19 05/1 2/03 -- 7.0 0.35 21 05/14/03 -- 7.0 0.35 21 05/16/03 -- 7.1 0.35 21 05/19/03 -- 7.0 0,36 22 06/02/03 -- 7,0 0.35 22 06/09/03 -- 6.9 0.36 22 06/16/03 -- 6.8 0.36 21 06/23/03 -- 7.0 0.36 21 06/30/03 -- 6.8 0.37 22 04/01/03 -- 7.3 0.33 04/02/03 -- 7.4 0.34 04/03/03 -- 7.3 0.34 04/04/03 -- 7.4 0.34 04/05/03 -- 7,3 0.34 04/06/03 -- 7.4 0.34 04/07/03 -- 7.3 0.34 04/08/03 -- 7.3 0.34 19 118339 18 129024 19 129629 18 125280 19 155189 18 98784 18 128448 18 118339 ACCESS - rptQtly Table 3b Page 1 of 4 Table 3b. IRM-1 Analytical Results, Second Quarter 2003, Inorganics and Field Measurements, Shell Oil Products US, Bakersfield, California. EPA Method 160.1/160.2 Field Location Sample Total Dissolved Solids pH Conductivity Temperature Flow Date (rog/L) (std units) (mS/cm) (°F) (gpd) EPN60014-901027F Bioassay (% Survival) SP-4 04/09/03 -- 7.2 0.34 20 132912 04/10/03 -- 7.2 0.34 19 119174 04/11/03 -- 7.2 0.34 19 125712 04/12/03 -- 7.2 0.34 t 9 180072 04/13/03 -- 7.2 0.34 19 68270 04/14/03 -- 7.2 0.34 18 132192 04/15/03 -- 7.2 0.34 19 122083 04/16/03 -- 7.4 0.32 18 124128 04/17/03 -- 7.3 0.33 19 123581 04/18/03 -- 7.4 0.32 18 123696 04/19/03 -- 7.3 0.33 19 134582 04/20/03 -- 7.3 0.33 19 117907 04/21/03 -- 7.3 0.32 19 133200 04/22/03 -- 7.3 0.32 19 122990 04/23/03 -- 7.3 0.32 19 119088 04/24/03 -- 7.3 0.33 19 119390 04/25/03 -- 7.2 0.32 19 128304 04/26/03 -- 7.3 0.33 19 129658 04/27/03 -- 7.2 0.32 19 108965 04/28/03 -- 7.2 0.33 19 131760 04/29/03 -- 7.3 0.33 19 123667 04/30/03 -- 7.2 0.33 18 119808 05/01/03 -- 7.3 0.32 19 131659 05/02/03 -- 7.4 0.33 19 115056 05/03/03 -- 7.3 0.33 19 136296 05/04/03 -- 7.3 0,32 19 119030 05/05/03 -- 7.4 0.33 19 127296 05/06/03 -- 7.3 0.32 19 114998 05/07/03 -- 6.8 0.35 20 127728 05/08/03 -- 7,3 0,33 19 130824 05/09/03 -- 7.4 0.34 18 115344 05/10/03 -- 7.3 0.32 19 116194 05/11/03 -- 7.4 0.34 19 125050 05/12/03 -- 7.4 0.34 20 126432 05/13/03 -- 7.4 0.34 20 114466 05/14/03 -- 7.4 0.34 20 117792 05/15/03 -- 7.4 0.34 20 128621 ACCESS - rptQtly Table 3b Page 2 of 4 Table 3b. IRM-1 Analytical Results. Second Quarter 2003, Inorganics and Field Measurements. Shell Oil Products US, Bakersfield, California. EPA Method 160.1/160.2 Field Location Sample Total Dissolved Solids pH Conductivity Temperature Flow Date (rog/L) (std units) (mS/cm) (°F) (gpd) EPAI60014-901027F Bioassay (% Survival) SP-4 05/16/03 -- 7.5 0.35 20 123408 05/17/03 -- 7.4 0.35 20 115013 05/18/03 -- 7.4 0.37 20 117547 05/19/03 -- 7.3 0.35 22 150048 05/20/03 -- 7.4 0.34 22 118152 05/21/03 -- 7.3 0.36 21 102096 05/22/03 -- 7.3 0.35 22 121176 05/23/03 -- 7.4 0.34 23 133200 05/24/03 -- 7.4 0.35 22 105163 05/25/03 -- 7.4 0.35 22 123451 05/26/03 -- 7.3 0.35 23 127584 05/27/03 -- 7.1 0.35 21 120182 05/28/03 -- 7.1 0.36 21 128880 05/29/03 -- 7.1 0.37 21 115387 05/30/03 -- Not Measured Not Measured Not Measured 104443 05/31/03 -- 7.0 0.36 21 122011 06/01/03 -- 7.1 0.37 21 117792 06/02/03 -- 6.9 0.35 22 123840 06/03/03 -- 7.3 0.35 22 116698 06/04/03 -- 7.4 0.35 23 118656 06/05/03 -- 7.1 0.35 22 123106 06/06/03 -- 7.2 0.35 22 123408 06/07/03 -- 7.2 0.35 22 117504 06/08/03 -- 7.1 0.34 22 120442 06/09/03 -- 7.0 0.35 22 129744 06/10/03 -- 7.1 0.35 22 124862 06/11/03 -- 6.8 0.38 20 113616 06/1 2/03 -- 7.0 0.36 21 121723 06/13/03 -- 7.2 0.36 21 114768 06/14/03 -- 7.1 0.35 21 126994 06/15/03 -- 7.3 0.35 21 116395 06/16/03 -- 7.3 0.35 21 120960 06/17/03 -- 7.3 0.35 22 113947 06/18/03 -- 7.2 0.35 22 111024 06/19/03 -- 7.3 0.36 22 124718 06/20/03 -- 7.2 0.35 21 111456 06/21/03 -- 7.2 0.35 21 118915 ACCESS - rptQtly Table 3b Page 3 of 4 Table 3b. IRM-1 Analytical Results, Second Quarter 2003, Inorganics and Field Measurements, Shell Oil Products US, Bakersfield, California. EPA Method 160.1/160.2 Field EPA/600/4-90/027F Location Sample Total Dissolved Solids pH Conductivity Temperature Flow Bioassay Date (mg/L) (std units) (mS/cm) (°F) (gpd) (% Survival) SP-4 06/22/03 -- 7.2 0.35 22 109627 -- 06/23/03 270 7.3 0.37 21 106848 95 06/24/03 -- 7.3 0.36 21 111355 -- 06/25/03 -- 7.2 0.35 22 115488 -- 06/26/03 -- 7.3 0.35 22 113731 -- 06/27/03 -- 7.3 0.36 22 111744 -- 06/28/03 -- 7.3 0.35 22 110189 -- 06/29/03 -- 7.2 0.36 22 110189 -- 06/30/03 -- 7.3 0.36 22 119808 -- Effluent Limitation Highest Daily Maximum NA 6.5-8.3 NA ~ NA 500,000 70 Notes: mg/L std units mS/cm gpd - constituent was not analyzed. - effluent conductivity not to exceed conductivity of extracted groundwater. - not applicable; effluent limitations not established in Order No. R5-2002-0085. - milligrams per liter. - standard units. - milliohms per centimeter. - degrees Fahrenheit. - gallons per day. ACCESS - rptQtly Table 3b Page 4 of 4 Table 3c. IRM-1 Effluent Statistical Analyses, Second Quarter 2003, Shell Oil Products US, Bakersfield, California. Ethyl- m,p- Effluent Statistics Month TPH GRO Methanol Ethanol Benzene benzene Toluene Xylene o-Xylene MTBE TBA DIPE ETBE TAME (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (po/L) (pg/L) (pg/L) Highest Daily Maximum April ND ND ND ND ND ND ND ND ND ND ND ND ND Monthly Average April ND ND ND ND ND ND ND ND ND ND ND ND ND Monthly Median April ND ND ND ND ND ND ND ND ND ND ND ND ND Highest Daily Maximum May ND ND ND ND ND ND ND ND ND ND ND ND ND Monthly Average May ND ND ND ND ND ND ND ND ND ND ND ND ND Monthly Median May ND ND ND ND ND ND ND ND ND ND ND ND ND Highest Daily Maximum June ND ND ND ND ND ND ND ND ND ND ND ND ND Monthly Average June ND ND ND ND ND ND ND ND ND ND ND ND ND Monthly Median June ND ND ND ND ND ND ND ND ND ND ND ND ND Effluent Limitations Highest Daily Maximum 100 3500 NA ND(0.5) 29 42 17 2 17 2 5I ND(20) 5 ~ 5 ~ 5 ~ Monthly Median ND(50) ND(20) NA ND(0.5) ND(0.5) ND(0.5) ND(l) ND(1 ) ND(S) ND(20) ND(5) ND(5) ND(5) Total Dissolved Effluent Statistics Month Solids pH Conductivity Temperature - Flow Bioassay (mg/L) (std units) (mS/crn) (~F) (gpd) (% survival) Monthly Median April -- 7.30 0.33 19,00 123912 -- Monthly Average April -- 7.28 0.33 18,73 124806 -- Highest Daily Maximum April 7.40 0.34 20,00 180072 -- Monthly Median May 7.30 0.34 20,00 121176 -- Monthly Average May 7.07 0.33 19,68 121759 -- Highest Daily Maximum May -- 7.50 0.37 23,00 150048 -- Monthly Median June 270 7.20 0.35 22.00 117101 95 Monthly Average June 270 7.19 0.35 21,63 117318 95 Highest Daily Maximum June 270 7.40 0.38 23.00 129744 95 Notes: 1 - sum of Ethanol, MTBE, DIPE, ETBE, and TAME values not to exceed 5 pg/L. 2 - sum of m,p-Xylene and o-Xylene values not to exceed 17 pg/L. -- - constituent was not analyzed during this time period. ND - constituent was not detected during this time period. NA - not applicable; effluent limitations not established in Order No. R5-2002-0085. ACCESS - rptQtly Table 3c Page 1 of 1 Table 4a. IRM-2 Analytical Results, Second Quarter 2003, BTEX, MI'BE, Oxygenates, and TPH, Shell Oil Products US, Bakersfield, California. EPA Method EPA Method 8015M 8015B EPA Method 8260B Sample Date Ethyl- re,p- Location TPH GRO Methanol Ethanol Ethanol Benzene benzene Toluene Xylene o-Xylene MTBE (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/I-) (pg/L) (pg/L) (pg/l_) TBA DIPE ETBE TAME (pg/L) (pg/L) (pg/L) (pg/L) Extraction Wells B-149 04/O9/O3 04/23/03 05/07/03 06/11/03 EW-8 04/09/03 04/23/03 05/07/03 06/11/03 EW-9 04/O9/O3 04/23/03 05/07/03 06/11/03 EW- 10 04/09/03 O4/23/03 05/07/03 06/11/03 EW-11 04/09/03 04/23/03 05/07/03 06/11/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) ND(100) ND(100) ND(100) 150 ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 2500 ND(100) ND(100) ND(10000) ND(50) ND(100) ND(100) ND(100) ND(100) 12000 ND(lO00) ND(200) ND(200) ND(200) ...... ND(10000) ND(50) ND(100) ND(100) ND(100) ND(100) 12000 ND(1000) ND(200) ND(200) ND(200) 4000 ND(100) ND(100) ND(10000) ND(50) ND(100) ND(100) ND(lO0) ND(100) 13000 ND(1000) ND(200) ND(200) ND(200) 640 ND(100) ND(100) ND(10000) ND(50) ND(100) ND(100) ND(100) ND(100) 12000 ND(1000) ND(200) ND(200) ND(200) ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(t) ND(l) ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(100) ND(100) ND(lO0) ND(0.5) ND(l) ND(1) ND(l) ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(100) ND(f00) ND(100) ND(0.5) ND(l) ND(l) ND(l) ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(100) ND(100) ND(100) ND(0.5} ND(l) ND(l) ND(l) ND(l) 5.0 ND(l) 2.0 ND(l) 1.3 ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(l) ND(I) ND(l) ND(l) NO(l) 2.5 ND(10) ND(2) ND(l) 1.2 ND(10) ND(2) 'ND(l) ND(l) ND(10) ND(2) ND(l) 11 ND(10) ND(2) 11 ND(2) ND(2) ND(2) ND(10) ND(2) ND(2) ND(2) ND(10) ND(2) ND(2) ND(2) ND(10) ND(2) ND(2) ND(2) ND(lO) ND(2) ND(2) ND(2) ND(10) ND(2) ND(2) ND(2) ND(10) ND(2) ND(2) ND(2) ND(10) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) ND(2) Influent SP-5 04/07/03 04/21/03 05/05/03 05/19/03 06/02/03 06/16/03 06/30/03 130 120 210 ND(100) ND(100) -- ND(0,5) ND(l) ND(l) ND(l) .... ND(100) ND(0oS) ND(l) ND(l) NO(l) ND(100) ND(100} ND(500} ND(2.5} ND(5) ND(5} ND(5} - -- ND(100) ND(0,5) ND(l) ND(l) ND(l) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) .... ND(200) ND(l) ND(2) ND(2) ND(2) .... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 430 ND(l) 460 NO(5} 290 ND(l) 690 D ND(l) 300 D ND(2) 34O ND(l) 38O D ND(10) ND(2) ND(2) ND(2) ND(10) ND(2) ND(2) ND(2) NO(SO} NO(10) ND(10} NO(10) 57 ND(2) ND(2) ND(2) ND(10) ND(2) ND(2) ND(2) ND(20) ND(4) ND(4) ND(4) 29 ND(2) ND(2) ND(2) Influent GAC 2 SP-7 04/07/03 ND(0.S) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) ACCESS - rptQtly Table 4a Page 1 of 2 Table 4a. IRM-2 Analytical Results, Second Quarter 2003, BTEX, MTI3E, Oxygenates, and TPH, Shell Oil Products US, Bakersfield, California. EPA Method EPA Method 8015M 8015B Sample Date Ethyl° Location TPH GRO Methanol Ethanol Ethanol Benzene benzene Toluene (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) EPA Method 8260B Xylene o-Xylene MTBE TBA DIPE ETBE TAME (pg/L) (pg/L) (pg/L) (po/L) (pg/L) (po/L) (po/L) SP-7 Influent GAC 3 SP-6 Effluent SP-8 04/21/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 05/05/03 .... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 05/19/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 06/02/03 .... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 06/16/03 .... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 06/30/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(lO) ND(2) ND(2) ND(2) 04/07/03 ........ ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 04/21/03 .... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 05/05/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 05/19/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l). ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 06/02/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 06/16/03 ...... ND(100) ND(0.5) ND(l} ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 06/30/03 ...... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(lO) ND(2) ND(2) ND(2) 04/07/03 ND(100) ND(100) ND(100) -- ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 04/21/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(lO) ND(2) ND(2) ND(2) 05/05/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(lO) ND(2) ND(2) ND(2) 05/19/03 ND(100) ND(lO0) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 06/02/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 06/16/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(lO) ND(2) ND(2) ND(2) 06/30/03 ND(100) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) Effluent Limitations Highest Daily Maximum 100 3500 NA NA ND(0.5) 29 42 17 2 17 2 5 ~ ND(20) 5 ~ 5 ~ 5~ Notes: 1 2 pg/L ND() D J NA sum of MTBE, DIPE, ETBE, and TAME values not to exceed 5 pg/L. sum of m,p-Xylene and o-Xylene values not to exceed 17 pg/L. micrograms per liter. constituent was not analyzed. constituent was not detected at detection limit in parentheses. diluted. estimated concentration. not applicable; effluent limitations not established in Order No. R5-2002-0085. ACCESS - rptQtly Table 4a Page 2 of 2 Table 4b. IRM~2 Analytical Results, Second Quarter 2003, Inorganics and Field Measurements, Shell Oil Products US, Bakersfield, California. EPA Method 160.1/160.2 Field Location Sample Total Dissolved Solids pH Conductivity Temperature Flow Date (rog/L) (std units) (mS/cm) (°F) (gpd) E PN600/4-90/027 F Bioassay (% Survival) Influent SP-5 Effluent SP-8 04/02/03 -- 6.8 0.41 20 04/04/03 -- 6.8 0.41 20 04/07/03 -- 6.8 0.42 20 04/09/03 -- 6.8 0.42 22 04/11/03 --. 6.5 0.42 21 04/14/03 -- 6.6 0.42 20 04/16/03 -- 6.8 0.39 20 04/18/03 -- 6.8 0.39 20 04/21/03 -- 6.9 0.40 20 04/23/03 -- 6.9 0.40 21 04/25/03 -- 6.7 0.39 20 04/28/03 -- 6.5 0.40 20 04/30/03 -- 6.5 0.40 20 05/02/03 -- 6.7 0.40 20 05/05/03 -- 6.9 0.40 21 05/07/03 -- 6.9 0.40 21 05/09/03 -- 7.0 0.41 20 05/1 2/03 -- 6.9 0.41 21 05/14/03 -- 6.8 0.41 21 05/16/03 -- 6.9 0.41 22 05/19/03 -- 7.0 0.39 23 06/02/03 -- 6.8 0.41 22 06/09/03 -- 6.8 0.41 22 06/16/03 -- 6.9 0.41 21 06/23/03 -- 6.8 0.41 22 06/30/03 -- 6.8 0.42 22 04/01/03 -- 7.4 0.41 04/02/03 -- 7.3 0.41 04/03/03 -- 7.4 0.41 04/04/03 -- 7.4 0.41 04/05/03 -- 7.4 0.41 04/06/03 -- 7.4 0.41 04/07/03 -- 7.4 0.41 20 141984 19 147888 19 139550 19 144432 19 172742 19 114048 19 149904 ACCESS - rptQtly Table 4b Page 1 of 4 Table 4b. IRM-2 Analytical Results, Second Quarter 2003, Inorganics and Field Measurements, Shell Oil Products US, Bakersfield, California. EPA Method 160.1/160.2 Field Location Sample Total Dissolved Solids pH Conductivity Temperature Flow Date (mg/L) (std units) (mS/cra) (°F) (gpd) EPN60014-90/O27F Bioassay (% Survival) SP-8 04/08/03 -- 7.4 0.41 19 95717 04/09/03 -- 7.3 0.41 21 156528 04/10/03 -- 7.3 0.41 19 122414 04/11/03 -- 7.1 0.41 21 153504 04/12/03 -- 7.3 0.41 19 191362 04/13/03 -- 7.2 0.41 19 75802 04/14/03 -- 7.2 0.41 19 160560 04/15/03 -- 7.3 0.41 19 143035 04/16/03 -- 7.2 0.39 19 138240 04/17/03 -- 7.2 0.38 19 141350 04/18/03 -- 7.3 0.39 18 145728 04/19/03 -- 7.2 0.38 19 155722 04/20/03 -- 7.2 0.38 19 137808 04/21/03 -- 7.3 0.39 19 159552 04/22/03 -- 7.3 0.38 19 150638 04/23/03 -- 7.3 0.40 20 136512 04/24/03 -- 7.3 0.37 19 135691 04/25/03 -- 7.2 0.39 19 151344 04/26/03 -- 7.2 0.38 19 148867 04/27/03 -- 7.1 0.36 19 127109 04/28/03 -- 7.0 0.39 19 160992 04/29/03 -- 7.2 0.38 19 151632 04/30/03 -- 7.0 0.39 19 141840 05/01/03 -- 7.1 0.38 19 151272 05/02/03 -- 7.3 0.39 19 139968 05/03/03 -- 7.2 0.38 19 141912 05/04/03 -- 7.3 0.39 19 141912 05/05/03 -- 7.4 0.39 19 147744 05/06/03 -- 7.4 0.39 19 137837 05/07/03 -- 7.3 0.39 20 149184 05/08/03 ' -- 7.3 0.39 19 136138 05/09/03 -- 7.4 0.40 18 126144 05/10/03 -- 7.3 0.38 19 69437 05/11/03 -- 7.3 0.38 19 69437 05/12/03 -- 7.4 0.40 20 133056 05/13/03 -- 7.3 0.39 20 112450 05/14/03 -- 7.4 0.41 20 114912 ACCESS - rptQtly Table 4b Page 2 of 4 Table 4b. IRM-2 Analytical Results, Second Quarter 2003, Inorganics and Field Measurements, Shell Oil Products US, Bakersfield, California. EPA Method 160.1/160.2 Field Location Sample Total Dissolved Solids pH Conductivity Temperature Flow Date (rog/L) (std units) (mS/cm) (°F) (gpd) EPA/600/4-90/027F Bioassay (% Survival) SP-8 05/15/03 -- 7.4 0.40 20 62179 05/16/03 -- 7.3 0.40 21 136224 05/17/03 -- 7.4 0.40 20 111974 05/18/03 -- 7.4 0.40 19 135360 05/19/03 -- 7.5 0.40 24 96768 05/20/03 -- 7.4 0.40 23 134914 05/21/03 -- 7,5 0.41 22 124416 05/22/03 -- 7,4 0.40 22 157219 05/23/03 -- 7.3 0.40 23 166464 05/24/03 -- 7.3 0.41 23 135374 05/25/03 -- 7.4 0.40 23 159970 05/26/03 -- 7.4 0.40 23 155952 05/27/03 -- 7.2 0.40 21 148723 05/28/03 -- 7.2 0.40 23 98064 05/29/03 -- 7.2 0.41 24 148925 05/30/03 -- Not Measured Not Measured Not Measured 147312 05/31/03 -- 7.2 0.39 23 157536 06/01/03 -- 7.1 0.39 23 150278 06/02/03 -- 7.3 0.41 24 164592 06/03/03 -- 7.4 0.40 22 149386 06/04/03 -- 7.3 0.41 23 164880 06/05/03 -- 7.4 0.40 22 135878 06/06/03 -- 7.4 0.40 22 151056 06/07/03 -- 7,4 0.40 22 140198 06/08/03 -- 7.4 0.40 22 145642 06/09/03 -- 7.3 0.40 23 170352 06/10/03 -- 7.3 0.41 22 150206 06/11/03 -- 6.7 0.43 21 160848 06/1 2/03 -- 7.2 0.42 21 136901 06/13/03 -- 7.3 0,42 21 144144 06/14/03 -- 7.2 0.41 21 160286 06/15/03 -- 7.3 0.42 21 134856 06/16/03 -- 7.3 0.41 21 154800 06/17/03 -- 7.3 0.41 22 142099 06/18/03 -- 7.3 0.41 22 162144 06/19/03 -- 7.4 0.41 22 152611 06/20/03 -- 7.3 0.41 21 155664 ACCESS - rptQtly Table 4b Page 3 of 4 Table 4b. IRM-2 Analytical Results, Second Quarter 2003, Inorganics and Field Measurements, Shell Oil Products US, Bakersfield, California. EPA Method 160.1/160.2 Field EPA/600/4-90/027F Location Sample Total Dissolved Solids pH Conductivity Temperature Flow Bioassay Date (rog/L) (std units) (mS/cra) (~F) (gpd) (% Survival) SP-8 06/21/03 -- 7.3 0.41 21 153691 -- 06/22/03 -- 7.3 0.41 22 152755 -- 06/23/03 320 7.2 0.41 22 162576 1 O0 06/24/03 -- 7.3 0.41 22 138643 -- 06/25/03 -- 7.3 0.41 22 155376 -- 06/26/03 -- 7.2 0.41 22 147499 -- 06/27/03 -- 7.4 0.42 22 153792 -- 06/28/03 -- 7.3 0.41 22 140832 -- 06/29/03 -- 7.4 0.41 22 145210 -- 06/30/03 -- 7.3 0.41 22 159264 -- Effluent Limitation Highest Daily Maximum NA 6.5-8.3 NA ~ NA 500,000 70 Notes: NA mg/L std units mS/cm ~F gpd constituent was not analyzed. effluent conductivity not to exceed conductivity of extracted groundwater. not applicable; effluent limitations not established in Order No, R5-2002-0085. milligrams per liter, standard units, milliohms per centimeter, degrees Fahrenheit. gallons per day. ACCESS - rptQtly Table 4b Page 4 of 4 Table 4c. IRM-2 Effluent Statistical Analyses, Second Quarter 2003, Shell Oil Products US, Bakersfield, California. Ethyl- Elfluent Statistics Month TPH GRO Methanol Ethanol Benzene benzene (pg/L) (pg/l_) (pg/L) (pg/L) (pg/L) Toluene (pg/l_) m,p~ Xylene (pg/L) o-Xylene (l~g/L) MTBE (pg/L) TBA (pg/L) DIPE (pg/L) ETBE (pg/L) TAME (pg/L) Highest Daily Maximum April ND ND ND ND ND ND ND ND ND ND ND ND Monthly Average April ND ND ND ND ND ND ND ND ND ND ND ND Monthly Median April ND ND ND ND ND ND ND ND ND ND ND ND Highest Daily Maximum May ND ND ND ND ND ND ND ND ND ND ND ND Monthly Average May ND ND ND ND ND ND ND ND ND ND ND ND Monthly Median May ND ND ND ND ND ND ND ND ND ND ND ND Highest Daily Maximum June ND ND ND ND ND ND ND ND ND ND ND ND Monthly Average June ND ND ND ND ND ND ND ND ND ND ND ND Monthly Median June ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Effluent Limitations Highest Daily Maximum 100 3500 NA ND(0.5) Monthly Median ND(50) ND(20) NA ND(0.5) Total Dissolved Effluent Statistics Month Solids pH (mg/L) (std units) 29 42 172 172 5 ~ ND(20) 5 ~ 5 ~ 5 ~ ND(0.5) ND(0.5) ND(l) ND(l) ND(5) ND(20) ND(5) ND(5) ND(5) Conductivity (mS/cm) Temperature (°F) Flow (gpd) Bioassay (% survival) Monthly Median April -- 7.30 0.41 19.00 145080 -- Monthly Average April -- 7.26 0,40 19.17 143083 Highest Daily Maximum April -o 7.40 0,41 21.00 191362 -- Monthly Median May -- 7,30 0.40 20.00 136224 -- Monthly Average May -- 7.09 0.38 20.10 130606 -- Highest Daily Maximum May -- 7.50 0.41 24.00 166464 -- Monthly Median June 320 7.30 0.41 22.00 151834 1 O0 Monthly Average June 320 7.29 0.41 21.90 151215 100 Highest Daily Maximum June 320 7,40 0.43 24.00 170352 100 Notes: 1 - sum of Ethanol, MTBE, DIPE, ETBE, and TAME values not to exceed 5 pg/L. 2 - sum of m,p-Xylene and o-Xytene values not to exceed 17 pg/L .- - constituent was not analyzed during this time period. ND - constituent was not deteCted dudng this time period. NA - not applicable; effluent limitations not established in Order No. R5-2002-0085, ACCESS - rptQtly Table 4c Page 1 of 1 FIGURES H:\Projects\SHELL~Bakersfield\Final',077-028\NPDES 20 '03.doc - ~'-, , ,..__ , V_t -" ~ ii' /'l '[_--_~ T ~ / ///I t ,:'d ~ ~'~ =,: ~ ~-o~" ' // ~~~.>' I gl .e-~J L~U~ I' ~ ..... ~1 ~ EXTRACTION WELL / / / T · [ ~ ~'[LtU /, // ~~l;I,l Fl ~e-~2~ " ;[ ¢ MONITORING WELL _1 ~ S,S~ ~. I~ , CONVERGENCE PIPING //.[--" "---':--'~:" ~ ,~- ~ ~ ~ i ~O~E~ LINE , . ~:~ ..... ~ : .,- ...... , '~,, 'b~ ,~ - _ ____ ~ ' -- '- ,[ i B-130LI ~'~1 n~ B-O31U ~: . dW8-C ¢~ B-OSOU , i- -' } , +' - - - . ' " n EEl-26 , I i J t , '~ ....... ;:"-' ' " ' ' I m¢, ' I , I. l [~-~ SCALE t ~, ,~,~ .. IIII~;Y~: ~, o,, ~--,~~;~- ~ ~~ J; ;' ~i~ , ':~' 2".-.... ~.-.~///~o;?-''~ "~" ~~ ,~ ,_,. = J~ ~ ,..---,~.-~,,... I FIGURE 1 SYSTEM ~YOUT, IRM-1 AND IRM-2, ~ AND DISCHARGE LINES, TriHydro ~ SHELL BAKERSFIELD REFINERY, Corporation BAKERSFIELD, CALIFORNIA 920 Sheridan St~t Laramie, ~oming 82070 Drawn By: DSI C,~c~e~ ~:~v I s~,~: ~,,=soo, I Date: 5/20/02 I Ref: 0~SYS~YOUT TriHydro Corporation ~ 920 Sheridan Street (307) 745-7474 Laramie, Wyoming 82070 FAX: (307) 745-7729 November 12, 2003 Mr. Geoffrey Anderson California Regional Water Quality Control Board Central Valley Region 1685 E. Street Fresno, CA 93706-2020 RE: Third Quarter 2003 NPDES Monitoring Report Revised Monitoring and Reporting Program No. R5-2002-0085 Equillon Enterprises, LLC, dba Shell Oil Products US, Groundwater Cleanup System Shell Bakersfield Refinery, Bakersfield, California Dear Mr. Anderson: Shell Oil Products US (Shell), is submitting the Third Quarter 2003 NPDES Monitoring Report as required under the Revised Monitoring and Reporting Program No. R5-2002-0085 established for monitoring treated discharge water from the groundwater remediation systems in use at the Shell Bakersfield Refinery in Bakersfield, California. Shell appreciates RWQCB's recent revision to the Monitoring and Reporting permi~i allowing the reduction in monitoring frequency of certain compounds. However, we are reiterating the request for altering the reporting schedule as established in the Revised Monitoring and Reporting Program No, R5-2002-0085. On page 5, paragraph 1 under the Reporting section of the document, it states that, "Daily, weekly, bi- weekly, monthly and quarterly monitoring results shall be submitted to the Regional Board within 45 days following the end of each calendar quarter. Annual monitoring results shall be submitted by 1 February of each year." In order to effectively utilize time and resources, Shell's intent is to submit the annual and fourth quarter monitoring results under the cover of a single document each year. Therefore, Shell requests that the schedule for submitting the annual results be modified to correspond to the submittal dates for the quarterly monitoring results (i.e. February 15 of each year). Thank you for your assistance with this project. If you have any questions, please contact me at (307) 745-7474 or Steve Overman Shell Oil Products US at (661) 326~4351. Sincerely, TRIHYDRO CORPORATION ~roject Manager 077-028 CC: Mr. Steve Overman, Shell Oil Products US Mr. Gene Freed, Shell Oil Products US Mr. Dan Walsh, Shell Global Solutions US H:~Projects\SHELL\Bakersfleld\Final\077,028~3Q 2003L3Q '03 Cover Ltr.doc TriHydro Corporation 920 Sheridan Street (307) 745-7474 Laramie, Wyoming 82070 FAX: (307) 745-7729 November 12, 2003 Mr. Geoffrey Anderson California Regional Water Quality Control Board Central Valley Region 1685 E. Street Fresno, CA 93706-2020 Re: Third Quarter 2003 NPDES Monitoring Report for MTBE Groundwater Remediation Project Order No. R5-2002-0085, Shell Bakersfield Refinery, Bakersfield, California Dear Mr. Anderson: In accordance with the official National Pollution Discharge Elimination System (NPDES) permit adopted by the California Regional Water Quality Control Board, Central Valley. Region (RWQCB), Waste Discharge Requirements for Equilon Enterprises, LLC DBA Shell Oil Products US, Groundwater Cleanup System, Kern County, Order No, R5-2002-0085, dated June 5, 2002, and revised December 6, 2002and July 3, 2003, Shell Bakersfield Refinery is submitting this letter report summarizing the third quarter (July through September) 2003 NPDES activities and monitoring results for the methyl tertiary butyl ether (MTBE) Interim Remedial Measures (IRM) groundwater remediation project at the Shell Bakersfield Refinery and Shell Bakersfield Terminal, located in Bakersfield, California, ~ 1.0 BACKGROUND INFORMATION During the mid to late 1990s, both the Shell Bakersfield Refinery and the Shell Bakersfield Terminal had releases of MTBE and other petroleum hydrocarbons to groundwater. Shell Oil Products US (Shell) began operation of soil vapor extraction and product skimming remediation systems at the Shell Bakersfield Terminal, and constructed two interim groundwater extraction and treatment systems that began operation in August and October 2001, respectively. The locations of the interim groundwater extraction and treatment systems, designated as IRM-1 and IRM-2, are shown on Figure 1. A detailed evaluation of the groundwater cleanup progress, trends, groundwater analytical results, and plume containment are presented in the quarterly groundwater reports submitted to the RWQCB. The next report, Fourth Quarter 2003 Groundwater Monitoring Report, Shell Oil Products US, Bakersfield, Califomia, will be submitted to the RWQCB on or before February 15, 2003. The IRM-1 treatment system consists of groundwater extraction wells positioned at the leading edge of the plume, a granular activated carbon (GAC) treatment system, and associated piping and appurtenances, IRM-1 began operation on August 27, 2001. The system typically discharges to the Calloway Canal; however, between August 1 and September 15, 2003 the H:\Projects\SHELL\Bakersfield~Final\077-028~3Q 2003~IPDES Report 3Q 2003.doc Mr. Geoffrey Anderson November 12, 2003 Page 2 discharge water was diverted from the canal to the stormwater management pond at the' refinery, at the request of the North Kern County Water District in order to cut weeds growing in the canal bottom. The RWQCB was notified of this change in correspondence dated July 21, 2003. Extraction wells currently included in the IRM-1 treatment system are wells EW-3, EW-4, EW-5, EW-6, EW-7, EW-12, and EW-13 (Figure 1). Wells EW-5, EW-6, and EW-7 were added to the system in November 2001. Two additional wells, EW-12 and EW-13 were added on November 19; 2002. The IRM-2 treatment system consists of extraction wells positioned near the center of the plume along Charity Avenue, a GAC treatment system, and associated piping and appurtenances. IRM-2 began operation on October 3, 2001. This system also typically discharges to the Calloway Canal; however, between August 1 and September 15, 2003 the discharge water was diverted from the canal to the stormwater management pond at the refinery, at the request of the North Kern County Water District in order to cut weeds growing in the canal bottom. The RWQCB was notified of this change in correspondence dated July 21, 2003, Extraction wells currently included in the IRM-2 treatment system are wells B-149, EW-8, EW-9, EW-10, and EW-11 (Figure 1). Wells EW-8 through EW-11 were added to the IRM-2 system in December 2001. 2.0 INFLUENT AND EFFLUENT MONITORING PROGRAM On October 16, 2001 Shell submitted a site-specific NPDES permit, Report of Waste Discharge for the NPDES Permit Application for the Shell Bakersfield Refinery, a Division of Shell Oil Products, to the RWQCB. During the interim, discharges from IRM. 1 and IRM-2 were covered under two separate orders from the RWQCB. The operation and discharge from IRM-1 was permitted under the General Order 5-00-119, and the operation and discharge from IRM-2 was permitted under Order 91-250. On June 5, 2002, Shell received an official permit, ' Order No. R5-2002-0085 as adopted by the California RWQCB, governing the operation and discharge of both IRM-1 and IRM-2. Shell requested a clarification regarding the reporting frequency required under the Monitoring and Reporting Program No. R5-2002-0085 in correspondence dated September 24, 2002. In response, the RWQCB modified the monthly and quarterly reporting schedule and issued a Revised Monitoring and Reporting Program No. R5-2002-0085 dated December 6, 2002. Influent samples from each system are required to be analyzed on a monthly basis. Note, that Shell' collected influent samples bi-weekly through May 2003, and monthly thereafter. Per the permit conditions, analytical results from the additional groundwater samples collected from the extraction wells and at the treatment units are included within this report on Tables 3a and 4a. According to the Revised Monitoring and Reporting Program No. R5-2002-0085, sampling frequency for the oxygenates including ethanol, methanol, methyl tertiary butyl ether (MTBE), tertiary bury! alcohol (TBA), di-isopropyl ether (DIPE), ethyl tertiary butyl ether (ETBE), and tertiary amyl methyl ether (TAME) may be reduced from monthly to quarterly for the influent samples if they are not detected (at appropriate detection limits) for three consecutive months. The sampling frequency may be adjusted to annually if the oxygenates are not detected in the influent samples for three consecutive quarters. Sampling frequency will revert back to the. H:\Projects~SHELL\Bakersfield\Final\077-028~3Q 2003\NPDES Report 3Q 2003.doc Mr. Geoffrey Anderson November 12, 2003 Page 3 original schedule outlined within the permit if the constituents are detected in the influent or the · effluent samples. The permit required effluent samples to be collected weekly during the first four weeks after initiation'of discharge and bi-weekly after that. The RWQCB issued a subsequent revision to the Monitoring and Reporting Program No. R5-2002-0085 in correspondence dated July 3, 2003, approving Shell's request to reduce monitoring frequency at both systems for laboratory analysis of the effluent water for oxygenates, methane, ethane, total petroleum hydrocarbons (TPH), as well as, benzene, toluene, ethylbenzene, and total xylenes (BTEX). Sampling · frequency will revert back to the bi-weekly schedule if the constituents are detected at appropriate detection limits in the influent or the effluent samples. Influent samples are collected from each of the extraction wells and then an aggregate sample is collected before the groundwater enters the treatment system. The samples are representative of the nature of the influent. Effluent samples are collected just before the processed water is discharged into the ouffail, and are representative of the nature of the effluent discharge, Sampling ports were installed in the extraction well, influent, and effluent lines of the IRM treatment systems. Ports were also installed within and between the GAC units. Table 1 summarizes the location and purpose for each sample port. The following protocols were used to collect influent and effluent samples: Label sample bottles with proper sample identification; · Locate the appropriate sampling port; , Open sample spigot and discharge water for approximately 30 seconds; Position the sample container beneath the sample spigot and collect the water sample from a uniform, laminar (Iow-flow) stream; ensure that sample containers are completely filled and that no air bubbles are present in volatile organic compound (VOC) sample vials; Enclose the sample jars.in bubble wrap inside a Ziploc®-type bag. Place the bag in a opaque cooler filled with ice; Proceed to the next sampling port and repeat the procedures described above; Seal the cooler, complete the laboratory Chain-of-Custody form, and overnight shipping label; and Deliver the sample cooler to the analytical laboratory via overnight courier. H:\Projects\SHELL~Bakersfield\Final\077-O28~3Q 2003~IPDES Repod 3Q 2003.doc Mr. Geoffrey Anderson November 12, 2003 Page 4 3.0 IRM SYSTEMS MONITORING RESULTS Analytical results for each of the remediation systems are summarized below. 3.1 IRM-1 Results As required by reVised Order No. R5-2002-0085, influent and effluent samples collected from IRM-1 are analyzed for the following parameters: Total petroleum hydrocarbons - gasoline range organics (TPH-GRO); · BTEX; Ethanol and Methanol; · MTBE; · TBA; · DIPE; · ETBE; · TAME; and Total dissolved sOlids (TDS). Samples collected from extraction wells EW-3 through EW-7, EW-12, and EW-13 and 'the effluent from each of the GAC units were analyzed for the same parameters listed above with the exception of TDS. The Influent and effluent samples collected from IRM-1 were also analyzed for total petroleum hydrocarbons - diesel range organics (TPH-DRO) and total petroleum hydrocarbons - motor oil (TPH-MO) during the third quarter 2003. Influent and effluent water is monitored for general water quality parameters including pH, specific conductivity, temperature, and dissolved oxygen. The inline dissolved, oxygen meter and the water quality meters at each of the IRM systems are routinely calibrated. Calibration is completed weekly during system monitoring and maintenance. The calibration procedures follow the guidelines established by the manufacturers of each meter, Total flow through IRM-1 is recorded daily, Table 2 presents the monthly flow statistics for the IRM-1 system for the third quarter 2003. The maximum daily flow allotted for the IRM-1 system under the permit is 500,000 gallons. The highest daily maximum flow measured in the third ' quarter was 153,000 gallons recorded on August 20, 2003, Total monthly flow from IRM-1 was approximately 3,298,363 gallons for July; 3,395,705 gallons for August; and 3,475,037 gallons for September. H:\Projects~SHELL\Bakersflet~Final\O77-028~3Q 2003\NPDES Report 3Q 2003.doc. Mr, Geoffrey Anderson November 12, 2003 Page 5 Extraction Well EW-4 was shut down on June 6, 2003 due to insufficient groundwater in the .well, as the result of dropping groundwater levels. Therefore, groundwater was not extracted from this well during the reporting period. Well EW-5 has not contained sufficient groundwater since June 16, 2003 to sustain continuous extraction of groundwater, Pumping from Well EW-5 was cycled over a 48-hour period during the third quarter; where the well is online for 24,hours and offline for 24-hOurs. Extraction Well EW-12 was not operating from July 9 through July 15, 2003 in order to repair the pump. Additionally, extraction Well EW-13 was taken offline on August 27, 2003 for pump repairs. Analytical results for the third quarter 2003 are Summarized in Tables 3a, 3b, and 3c. Organic data are summarized in Table 3a. Inorganic and field measurement data are summarized in Table 3b? .Summary statistics for the analytical and field measurements are provided for the IRM-1 system in Table 3c. The monitoring of total lead has been discontinued based on the influent and effluent monitoring criteria detailed in Order No. R5-2002-0085, that states, "if lead is not detected in the first two sampling events then testing may be discontinued thereafter". Specific conductance and pH in the influent and effluent samples have remained relatively stable throughout the quarter and did not exceed allowable limits. Laboratory analytica! reports for the third quarter are included in Attachment A of this report. 3.1.1 Extraction Well Results MTBE was solely reported in extraction wells EW-5 and EW-6 during the third quarter 2003, MTBE concentrations in groundwater samples collected from these two extraction wells ranged from non detect (EW-5, 7/9/03) to 17 micrograms per liter (pg/L) JEW-5, 8/6/03]. A single detection of TPH-GRO was reported in samples collected from extraction wells EW-12 (100 #g/L, 8/6/03) and EW-13 (230 pg/L, 9/3/03). All other constituents analyzed were reported below laboratory detection limits in the groundwater samples collected from the extraction ~,ells feeding into the IRM-1 system. 3.1.2 Influent Results During the third quarter 2003, MTBE and TPH-GRO were measured above the laboratory reporting limits in the samples collected from Influent IRM-1, MTBE ranged from 230 pg/L (8/19/03) to 460 pg/L (7/7/03). TPH-GRO concentrations .were reported as 280 #g/L in July, 190 #g/L in August, and 240 #g/L in September. MTBE was also detected above laboratory reporting limits in the samples collected from GAC-1 IRM-1 (17 pg/L) and GAC-2 IRM-1 (1.4 #g/L) submitted on August 4, 2003. All other analyzed constituents were not reported above the laboratory detection limits in samples collected during the third quarter. 3.1.3 Effluent Results During the third quarter 2003, all constituents analyzed from Effluent IRM-1 were reported below the laboratory detection limits. Effluent limitations were not exceeded for any of the constituents or field parameters. Acute bioassay testing of the effluent samples collected from IRM-1 is conducted quarterly per permit requirements according to specifications described in the United States Environmental H:'~Projects:SHELL'~Bakersfield'~Fi~al',O77-O28',3Q 2003WPDES Report 3Q 2003.doc Mr. Geoffrey Anderson November 12, 2003 Page 6 Protection Agency (USEPA) document EPA/60014-901027F. Bioassay samples consist of a 24- ' hour composite collected from the last discharge point before entering the receiving water and are representative of the quality of the discharge. Because the Calloway Canal is an ephemeral stream, no dilution is required. Test species for the bioassay analysis are fathead minnows (Pimephales promelas). Bioassay samples collected on September 25, 2003 had a survival rate of 100%, which is within the permit limitations. Bioassay results for !RM-1 are provided in Table 3b and laboratory reports are included in Appendix A. 3.1.4 "Dry Weather Dioxin" Analytical Results In accordance with revised Order No. R5-2002-0085, Shell collected the "dry weather" dioxin samples from the IRM-1 effluent on July 7, 2003 and submitted the samples for analysis to Calscience Environmental Laboratories, Inc. (Garden Groove, California). The analytical results for the "dry weather" dioxin samples were submitted to the RWQCB in correspondence on August 27, 2003. None of the reported congener concentrations exceeded the maximum contaminant level for dioxins in drinking water established by the California Environmental Protection Agency, 3.2 IRM-2 Results The influent, effluent, and extraction well samples collected from IRM-2 are analyzed for the same analytical list as those presented in Section 3.1 for the IRM-1 system. Influent and effluent water is also monitored for general water quality parameters including pH, specific conductivity, temperature, and dissolved oxygen. Total flow through IRM-2 is recorded daily. Table 2 presents the monthly flow statistics for the IRM-2 system for the third quarter 2003. The maximum daily flow allotted for the IRM-2 system under the permit is 500,000 gallons. The highest daily maximum flow measured in the third quarter was 237,024 gallons recorded on July 14, 2003. During the third quarter of 2003, the total monthly flow from IRM-2 was approximately 4,647,399 gallons for July; 4,055,774 gallons for August; and 3,882,773 gallons for June. Extraction Well B-149 was offiine on August 27, 2003 and intermittently operated between September 1 and September 5, 2003. Well B-149 was taken offline on Monday September 6, 2003 for pump repairs. Analytical results for the third quarter 2003 for IRM-2 are summarized in Tables 4a, 4b, and 4c. Organic data are summarized in Table 4a. Inorganic and field measurement data are summarized in Table 4b. Summary statistics for the analytical and field measurements are provided for IRM-2 in Table 4c. The monitoring of total lead has been discontinued based on the influent and effluent monitoring criteria detailed in Order No. R5-2002-0085, that states, "if lead is not detected in the first two sampling events then testing may be discontinued thereafter". Specific conductance and pH in the influent and effluent samples have remained relatively stable through the quarter and did not exceed allowable limits. Laboratory analytical reports for the third quarter are included in Attachment A of this report. H:\Projects\SHELL~akersfiet~Final\077-028~3Q 2003\NPDES Report 3Q 2003.doc Mr. Geoffrey Anderson November 12, 2003 Page 7 3.2.1 Extraction. Well Results From July through September, MTBE was detected in at least one sample collected from extraction wells EW-8, EW-9, and EW-11. Detected concentrations in the extraction well Samples ranged from 2.0 pglL (EW-11, 7/1703) to 18,000 pg/L (EW-8, 7/9/03). TPH~GRO was detected in the grOundwater samples collected from EW-8 ranged from 2,100 pglL (8/6/03) up to 4,900 pglL (913103)? TBA was reported above detection limits in the samples collected from Well EW-8 on July 9, 2003 (1,200 #g/L) and August 6, 2003 (2,000 pg/L). The remainder of the analyzed constitUents were not detected above the laboratory reporting limits. 3.2.2 Influent Results During the third quarter 2003, MTBE and TPH-GRO were measured above the laboratory reporting limits in the influent samples collected from Influent IRM-2. MTBE ranged from 310 pglL (7/14/03) to 520 #glL (8/11/03). TPH-GRO concentrations were detected at 140 #glL in July, 410 #g/L in August, and 190//g/L in September. MTBE (1.2/./g/L) was reported in the groundwater samPle collected from GAC-2 IRM-2 on July 14, 2003. A single detectiOn of ethanol (Method 8260B) was reported above detection limits in the influent sample collected from GAC-3 IRM-2 on July 14, 2003 at a concentration of 120 #g/L. No additional constituents were reported above the laboratory detection limits in the influent samples collected from the IRM-2 system during the third quarter. 3.2.3 Effluent Results , None of the analytical constituents were detected above the laboratory detection limits in the effluent samples collected and analyzed from IRM-2 during the third quarter 2003. Efflu~ent limitations were not exceeded for any of the conStituents or field parameters. Acute bioassay testing of the effluent samples collected from IRM-2 is conducted quarterly per permit requirements according to specifications described in the United States Environmental Protection Agency (USEPA) document EPAI60014-901027F. Bioassay samples consist of a 24- hour composite collected from the last discharge point before entering the receiving water and are representative of the quality of the discharge. Because the Calloway Canal is an ephemeral stream, no dilution is required. Test species for the bioassay analysis are fathead minnows (Pimephales promelas). Bioassay samples collected on September 25, 2003 had a survival rate of 100%, which is within the permit limits. Bioassay results for IRM-2 are provided in Table 4b and laboratory reports are included in Appendix A. 3.2.4 "Dry Weather Dioxin" Analytical Results In accordance with revised Order No. R5-2002-0085, Shell collected the "dry weather" dioxin samples from the IRM-2 effluent on July 7, 2003 and submitted the samples for analysis to Calscience Environmental Laboratories, Inc. (Garden Groove, California). The analytical results for the "dry weather" dioxin samples were submitted to the RWQCB in correspondence on August 27, 2003. None of the reported congener concentrations exceeded the maximum contaminant level for dioxins in drinking water established by the California Environmental Protection Agency. H:\Projects~SHELL~Bakersfield~Final\077"028~3Q 2003\NPDES Report 3Q 2003.doc Mr. Geoffrey Anderson November !2, 2003 Page 8 4.0 RECEIVING WATER, CANAL, AND STORMWATER POND MONITORING PROGRAM As required by revised Order No. R5-2002-0085, receiving waters from an upstream (R-l) and a downstream (R-2) station should be monitored monthly whenever possible for the following parameters: estimated flow, dissolved oxygen, pH, temPerature, electrical conductivity, and turbidity. Receiving waters should be collected and analyzed from each station and analyzed for TDS once each quarter. The receiving water stations within the canal remained dry during the third quarter of 2003, Water conditions within the Calloway Canal are inspected weekly. Field notes are recorded documenting the presence or absence of: Floating or suspended matter; Discoloration; Bottom deposits; · Aquatic life; Visible films, sheers, or coatings; Fungi, slimes, or objectionable growths; and Potential nuisance conditions. Field documentation recorded during the third quarter 2003 is included in Appendix B. 'Order No. R5-2002-0085 requires that a minimum freeboard of two feet shall be maintained in the onsite stormwater management pond at the refinery, when it is in use. During the third quarter 2003, discharge waters were diverted from the Calloway Canal to the refinery stormwater management pond from August 1, 2003 through September 15, 2003, in order to remove weeds accumulating in the canal. A minimum freeboard of two feet was maintained in the stormwater management pond during this timeframe. 5.0 PROJECTED ACTIVITIES Shell will continue monitoring the IRM systems per the requirements established in the Revised Monitoring and Reporting Program No. R5-2002-0085. In addition to routine sampling and monitoring, Shell will submit and analyze samples from each of the IRM systems for priority pollutants in October 2003 and dioxins during "wet weather" over the course of the fourth quarter 2003. Samples will be collected and analyzed according to the procedures outlined within the Policy for Implementation of Toxics Standards for Inland Surface Waters, Bays, and Estuaries of California (Implementation Policy). H:~Projects\SHELL~akersfiel~Final\077-028~3Q 2003\NPDES Report 3Q 2003.doc Mr. Geoffrey Anderson November 12, 2003 Page 9 Extraction Well EW-14 was installed in August 2003. Groundwater from Well EW-14 will be extracted beginning in the fourth quarter and added to the influent water supplied to the IRM-2 treatment system. The Annual and Fourth Quarter 2003 NPDES Monitoring Report will be submitted to the RWQCB on or before February 15, 2004. Questions and comments should be directed to Mr. Steve Overman (Shell Oil Products US) at 661-326-4351 or to Linda Barnes (TriHydro Corporation~, Sincerely, ~,'~ v Projectt~Mn~~~~0 ~ a,,.orn,aa o,o.,s. License expires October 31,2005 077~028 CC: Mr. Gene Freed, Shell Oil Products US Mr. Steve Overman, Shell Oil Products US Mr. Dan Walsh, Shell Global Solutions US H:~Projects~SHELL\Bakersfield\Final~077-028~3Q 2003\NPDES Report 3Q 2003.doc TABLES H:\Projects\SHELL\Bakersfield\Final\077-028',3Q 2003~NPDES Report 3Q 2003,doc Table 1. Sam.pie Locations, IRM Treatment Units, Shell Bakersfield Refinery, Bakersfield, Califomia. Sample ID Port ID Port Location Sample iPurpose Influent IRM-1 T-100 GAC-1 =IRM-1 GAC-1 GAC-2 ~IRM-1 GAC-2 GAC-3 'IRM-1 GAC-3 Effluent IRM-1 'SP-4 Influent IRM-2 3'-100 GAC-1 IRM-2 GAC-1 GAC-3 IRM-2 GAC-2 GAC-2 IRM-2 GAC-3 Effluent IRM-2 SP-8 Influent manifold between T-100 Tank and Filter Beds Piping manifold between GAC No. 1 and GAC No. 2 Piping manifold between GAC No. 2 and GAC No. 3 Piping manifold between GAC No. 3 and T-400 (Aeration HOlding Tank) Piping manifold prior to discharge to Calloway Canal or Refinery Stormwater Pond Influent manifold between T-100 Tank and Filter Beds Piping manifold between GAC No. 1 and GAC No. 3 Piping manifold 'between GAC No. 3 and GAC No. 2 Piping manifold between GAC No. 2 and T-400 (Aeration Holding Tank) Piping manifold prior to discharge to Calloway Canal or Refinery Stormwater Pond Combined influent into IRM-1 from extraction Wells Effluent sample from GAC No. 1 Effluent sample from GAC No. 2 Effluent sample from GAC 'No. 3 Effluent sample from IRM-1 Combined influent into I!RM-2 from extraction wells Effluent sample from GAC No. 1 ~Effiuent sample from GAC No. 3 Effluent sample from GAC No. 2 Effluent sample from IRM.2 H:~Projects~SHELL'~Bakersfield~Final~O77-O28~3Q 2003~Table l.xls Table 2. Flow Statistics for IRM-1 and IRM-2, Third Quarter 2003, Shell Oil Products US, Bakersfield, California. Highest Daily Monthly Maximum Average Monthly Median Location Year Month (gallons) (gpd) (gpd) Total Monthly Flow (gallons) IRM.1 IRM-2 2003 July 125,309 106,399 105,278 2003 August 153,000 109,539 108,209 2003 September 152,395 115,835 114,098 2003 July 237,024 t49,916 147,744 2003 August 171,403 130,831 132,091 2003 September 150,595 129,426 130,882 3,298,363 3,395,705 3,475~037 4,647,399 4,O55,774 3,882,773 ACCESS - rptQtlyFIow Stats_Table 2 Page 1 of 1 Table 3a. IRM-1 Analytical Results, Third Quarter 2003, BTEX, MTBE, Oxygenates, and TPH, Shell Oil Products US, Bakersfield, C,alifomia. EPA Method EPAIMethod 8015M 8015B 'EPA Method 8260B Ethyl- m~p- ,Location SamPle Date TPH DRO TPH GRO TPH MO Methanol iEthanol Ethanol :Benzene benzene Toluene Xylene o-Xylene MTBE TBA DIPE ETBE TAME (l~g/t-) ,(po/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) ,(pg/L) ,(pg/L) (pg/t.) (pg/L) · (pg/l_) (l~g/L) Extraction Wells EW-3 7/9/03 .......... 7/14/03 -~ ND(100) -- ND(100) ND(100) 8/6/03 -- ND(100) -- ND(100) ND(100) 9/3/03 - ND(100) -- ND(100) ND(100) EW-5 7/9/03 ....... 7/14/03 - ND(100) -- ND(100) ~ND(100) 8/6/03 - ND(100) -- ND(100) ~ND(100) 9/3/03 - ND(100) -- IND(100) ,ND(100) EW-6 7/9/03 ......... 7/14/03 -- ND(100) -- ND(100) ND(100) 8/6/03 - ND(100) -- 'ND(100) ND(100) 9/3/03 - ND(100) - :ND(100) ND(100) EW-7 7/9/03 ........ 7/14/03 - ND(100) -- ND(100) ND(100) 8/6/03 - ND(100) -- ND(100) ND(100) 9/3/03 - ND(100) -- ND(t00) ND(100) 'EW-12 8/6/03 -- 100 -- ND(100) ND(100) 9/3/03 -- ND(100) -- ND(100) ND(100) EW- 13 7/9/03 ........ 7/14/03 -- ;ND(100) -- ND(100) ND(100) '8/6/03 -- iND(100) -- ND(100) ND(100) 9/3/03 -- 230 -- ND(100) ND(100) Influent Influent IRM-1 7/7/03 ND(1000) 280 ND(5000) ND(100) ND(100) 8/4/03 ND(1000) 190 ND(5000) ND(100) ND(100) 8/19/03 ........ 9/2/03 ND(1000) 240 ND(5000) ND(100) ND(100) ND(100) ND(0'5) ND(l) ND(l) :ND(l) ND(100) ND(0o5) ND(l) ND(l) ND(l) 'ND(100) ND(0.5) ND(l) 'ND(l) ND(l) ND(100) ~ND(0.5) 'ND(l) =ND(l) 'ND(l) !ND(100) ;ND(0.5) IND(1) ND(l) ND(l) 'ND(100) IND(0.5) IND(1) ND(l) ND(l) ND(100) 'ND(0.5) :ND(l) ND(l) ND(l) ND(100) ND(0.5) .ND(l) ND(l) ND(l) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(0.5) ND(l) ND(l) ND(1) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(0:5) ND(l) ND(l) ND(l) ND(100) ND(0:5) ND(1 ) ND(1 ) ND(1 ) iND(1) iND(1) ND(10) ND(2) ND(2) ND(2) ND(l) IND(1) ND(10) ND(2). ND(2) ND(2) 'ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) 'ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) ND(l) 17 ND(10) ND(2) ND(2) ND(2) ND(l) 6.6 ND(10) ND(2) ND(2) ND(2) ND(l) 2.1 ND(10) ND(2) ND(2) ND(2) ND(l) 2.2 ND(10) ND(2) ND(2) ND(2) ND(l) 2.1 ND(10) ND(2) ND(2) ND(2) ND(l) ND(l) ND(10) ND(2) ;ND(2) ND(2) ND(l) ND(l) ND(10) IND(2) ND(2) ;ND(2) ND(l) ND(l) ND(10) IND(2) :ND(2) IND(2) ND(l) ND(l) IND(10) ND(2) ,ND(2) IND(2) ND(l) ND(l) !ND(10) ND(2) ;ND(2) !ND(2) ND(l) ND(t) ND(10) ND(2) ND(2) ND(2) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) ND(100) :ND(0;5) ND(l) IND(1) !ND(t) IND(1) :ND(500) ND(2;5) ND(5) 'ND(5) ;ND(5) 'ND(5) 'ND(500) ND(2.5) ND(5) :ND(5) ;ND(5) ~ND(5) ND(200) ~ND(1) IND(2) 'ND(2) iND(2) :ND(2) 460 ND(10) ND(2) ND(2) ND(2) 370 ND(50) ND(10) ND(10) ND(10) 230 ND(50) ND(10) ND(10) ND(10) 380 ND(20) ND(4) ND(4) ND(4) ACCESS - rptQtly Table 3a Page 1 of 2 Table 3a. IRM-1 Analytical Results, Third Quarter 2003, BTEX, MTBE, Oxygenates, and TPH, Shell Oil Products US, Bakersfield, California. EPA Method EPA IMethod 8015M 8015B ~EPA Method 8260B !Ethyl- m~p- Location Sample Date TPR DRO TPH GRO TPH IMO Methanol 'lEthanol 'Ethanol Benzene benzene Toluene Xylene o-Xylene MTBE TBA DIPE ETBE TAME (l~g/L) (.g/L) (l~g/L) (l~g/L) (l. tg/L) (.g/L) (l~g/L) (l~g/L) (l~g/L) (l.[g/L) (~g/L) (l~g/L) (l~g/L) (~g/L) (l~g/t-) (l.~g/I-) IRM-1 GAC-1 IRM-1 7/7/03 ....... ND(100) ND(0.5) ND(l) ND(l) ND(l) ,8/4/03 ........ ND(100) ND(0.5) ND(I) ND(l} ND(l) 8/19/03 ......... ND(100) ND(0.5) ND(I} ND(l) ND(l) 9/2/03 ......... ND(100) ND(0.5) ND(l) ND(l) ND(l) GAC-2 IRM-1 7/7/03 ......... ND(100) ND(0;5) ND(l) ND(l) ~ND(1) 8/4/03 ......... ND(t00) ND(0;5) ND(l) iND(1) !ND(l) 8/19/03 ......... ND(100) ND(0;5) ND(I) IND(1) IND(1) 9/2/03 .......... ND(100) ND(0.5) ND(I) ND(l) 'ND(l) GAC-3 IRU-1 7/7/03 ......... ND(100) 'ND(0.5) ND(I) ~ND(1) ND(l) 8/4/03 ......... ND(100) !ND(0.5) ND(I) ND(l) ND(l) 8/19/03 ........ ND(100) ND(0.5) ND(l) ND(l) ND(l) 9/2/03 ......... ND(100) ND(0.5) ND(l) ND(l) ND(l) Effluent Effluent IRM-1 7/7/03 ND(1000) ND(100) ND(5000) ND(100) ND(100) ND(100) ND(0.5) ~ND(I) ND(l) ND(l) 8/4/03 ND(lO00) ND(100) ND(5000) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) 8/19/03 ...... ND(100) ND(0.5) ND(I) ND(l) ND(l) 9/2/03 ND(1000) ND(100) 'ND(5000) ND(100) ND(100) ND(100) ND(0.5) ND(I) ND(l) ND(l) ND(l) ND(l) ND(tO) ND(2) ND(2) ND(2) ND(l) 17 ND(10) ND(2) ND(2) ND(2) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) ;ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) IND(1) 1.4 ND(lO) ND(2) ND(2) ND(2) ,ND(l) ;ND(l) ND(10) ND(2) ND(2) ND(2) ~ND(1) ND(l) ND(10) ND(2) ND(2) ND(2) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) ND(l) IND(1) ND(10) ND(2) ND(2) ND(2) ND(l) ;ND(l) ND(10) ND(2) ND(2) ND(2) ND(l) ND(l) 'ND(10) 'ND(2) ND(2) ND(2) ND(l) ND(l) IND(10) !ND(2) ND{2) ND(2) ND(l) ND(l) IND(10) IND(2) ND(2) ND(2) ND(l) ND(l) IND(10) IND(2) ND(2) ND(2) ND(l) ND(l) ND(10) :ND(2) :ND(2) ND(2) ,Effluent Limitations Highest Daily Maximum NA 100 NA 3500 INA NA ND(0.5) 29 42 17 2 17 2 5 ~ ND(20) 5 ~ 5 ~ 5 ~ Notes: 1 - sum of MTBE, DIPE, ETBE, and TAME values ~not to exceed 5 t~g/L. 2 - sum of m,p-Xylene and o-Xylene values not to exceed 17 ~zg/L gg/L - micrograms per liter. - - constituent was ;not analyzed. ND() - constituent was ;not detected at detection limit in pamnthesas. D - diluted. J - estimated concentration. NA - not applicable; effluent limitations not established in Order No. R5-2002-0085. Constituent Abbreviations: DIPE - di-isopmpyl ether ETBE - ethyl tertiary but~ ether MTBE - methyl tertiary butyl ether TAME - tertiary amyl methyl ether TBA - tertiary butyl alcohol TPH DRO - total petroleum hydrocarbons diesel ~range organics TPH GRO - total petroleum hydrocarbons gasoline range organics TPH MO - total petroleum hydrocarbons,motor oil ACCESS - rptQtly Table 3a Page 2 of 2 Table 3b. IRM-1 Analytical :Results, Third Quarter 2003, 'lnorganics and Field Measurements, Shell Oil ProduCts US, Bakersfield, California. EPA Method 160.1/160:2 iField Location Sample Total !Dissolved 'Solids pH Conductivity Temperature Flow Date ' (mg/L) (std units) (mS/cra) (=F) (gpd) EPN60014-90/O27F ~Bioassay (% Survival) Influent IRM-1 IRM-~ T-100 Effluent IRM-1 SP-4 7/7/03 -- 6.8 0.37 22 7/14/03 -- 6.9 0.38 22 7/21/03 -- 6.9 0.37 23 7/28/03 -~ 6,8 0.37 23 8/4/03 -- 6.9 0.35 22 8/11/03 -- 7.0 0.35 22 8/18/03 -- 6.6 0.36 23 8/25/03 -- 6.5 0.36 22 9/2/03 -- 6.8 0.36 23 9/8/03 -- 6.6 0.37 22 9/15/03 -- 6.7 0.38 22 9/22/03 - 6.7 0.38 22 9/29/03 - '6.5 0,39 21 7/1/03 -- 7.3 0:36 7/2/03 -- 7.3 0.35 7/3/03 -- 7.3 0.35 7/4/03 -- 7.3 0.35 7/5/03 -- 7.2 0.36 7/6/03 -- 7.3 0,35 7/7/03 -- 7.1 0.36 7/8/03 -- 7.2 0.37 7/9/03 -- 7.2 0.36 7/10/03 -- 7.3 0.36 7/11/03 -- 7.3 0.36 7/12/03 -- 7.3 0.35 7/13/03 -- 7.3 0.35 7/14/03 -- 7.2 0.38 7/15/03 -- 7.3 0:38 7/16/03 -~ 7.3 0.37 7/17/03 -- 7,2 0.38 22 114782 22 100944 22 105523 22 111~54 22 116496 23 107366 23 118512 23 100627 23 104544 23 94450 23 97056 22 97301 23 94205 22 97776 22 100339 23 104933 23 115632 ACCESS - rptQtfy Table 3b Page 1 of 4 Table 3b. IRM-1 AnalytiCal Results, Third Quarter 2003, Inorganics and Field Measurements, Shell Oil ,Products ;US, Bakersfield, California. EPA Method 160.1/160.2 Field Location SamPle Total Dissolved Solids pH ConductiVity Temperature Flow Date (rog/L) (std units) (mS/cm) (=F) (gpd) EPN600/4-90/O27F Bioassay (% Survival) SP-4 7/18/03 -- 7.3 0.37 23 119952 7/19/03 -- 7.2 0.38 23 88157 7/20/03 -- 7,3 0,37 23 125309 7/21/03 -- 7.1 0.36 22 102096 7/22/03 - 7.1 0.36 23 105278 7/23/03 - 7.2 0.37 23 108864 7/24/03 -- 7.2 ~0.37 23 110678 7/25/03 -- 7.3 0.38 23 113760 7/26/03 -- 7.3 0.37 23 100699 7/27/03 -- 7.3 0.38 23 119376 7/28/03 -- 7.1 0.37 22 95904 7/29/03 -- 7.1 0.37 23 110016 7/30/03 -- 7,2 0.36 23 100051 7/31/03 -- 7.1 0.37 23 116582 8/1/03 -- 7.2 0.36 23 107554 8/2/03 - 7.2 0.37 23 121306 8/3/03 -- 7.1 0.36 23 125323 8/4/03 -- 7.3 0.35 22 104976 8/5/03 -- 7.3 0.35 22 108418 8/6/03 -- 7.1 0.35 23 120672 8/7/03 -- 7.2 0.36 23 110088 8/8/03 -- 7.2 0.35 23 107467 8/9/03 -- 7.2 0.36 23 117014 8/10/03 -- 7.3 0.36 23 102701 8/11/03 -- 7.3 0,35 22 100051 8/12/03 -- 7.3 0.35 22 101808 8/13/03 -- 7,3 0,35 23 ' 114365 8/14/03 -- 7.2 '0.35 23 101938 8/15/03 -- 7.3 '0.36 23 113530 8/16/03 -- 7;2 0.36 23 113515 8/17/03 -- 7;3 0;35 23 116942 8/18/03 -- 7.1 0.36 24 117965 8/19/03 -- 7.1 0.36 25 · '87134 8/20/03 -- 7.1 0.36 23 153000 ACCESS - rptQlty Table 3b Page 2 of 4 Table 3b. IRM-1 Analytical Results, Third Quarter 2003, Inorganics and Reid Measurements, Shell Oil Products :US, Bakersfield, California. EPA !Method 160.1/160.2 iField Location Sample Total Dissolved Solids :pH Conductivity Temperature Flow Date (mg/L) (std units) ,(mS/cm) (~F) (gpd) EPN60014-901027F !Bioassay (% SurVival) SP-4 '8/21/03 -- 7.2 0.36 25 61963 8/22/03 -- 7.1 0.37 24 108000 8/23/03 -- 7.2 0.36 23 98582 8/24/03 -- 7.2 0.36 24 132034 ,8/25/03 -- 7.0 0.36 23 94176 8/26/03 -- 7.1 0.36 22 106848 8/27/03 -- 7.0 0.36 23 106229 8/28/03 -- 7.0 ,0.36 23 98568 8/29/03 -- 7.1 0.36 22 110981 8/30/03 -- 7.1 0.36 22 116078 8/31/03 -- 7.0 0;36 23 121306 9/1/03 -- 7.1 0;36 23 100483 9/2/03 -- 7:0 0.36 23 116525 913103 -- 7;0 0.36 23 104414 9/4/03 -- 7;0 0.36 23 97560 9/5/03 -- 7.1 0.36 23 110621 9/6/03 -- 7.0 0.37 23 101491 9/7/03 -- 7.0 0.37 23 104472 9/8/03 -- 6.9 0.35 21 114912 9/9/03 -- 7.0 0.37 22 101707 9/10/03 - 7.0 0.37 22 105984 9/11/03 -- 7.0 0.36 22 96091 9/12/03 -- 7.0 0.36 22 114149 9/13/03 -- 7.0 0.38 22 86587 9/14/03 -- 7.0 ,0.36 22 113184 9/15/03 -- 7.1 0.38 22 114048 9/16/03 -- 7.1 0.38 23 95760 9/17/03 -- 7.0 0.37 23 104544 9/18/03 -- 7.1 0.38 23 121046 9/19/03 -- 7'0 0.38 23 136238 9/20/03 -- 7.0 0.38 23 125856 9/21/03 -- 7.1 0.37 23 126878 9/22/03 -- 7.2 0.39 22 115747 9/23/03 -- 7.2 0.38 22 134251 ACCESS - rptQtly Table 3b Page 3 of 4 Table 3b. IRM-1 Analytical Results, Third Quarter 2003, Inorganics and Field Measurements, Shell Oil Products US, Bakersfield, California. EPA Method 160.1/160.2 Field Location Sample Total Dissolved Solids ;pH ConductiVity Temperature Flow Date ' (mg/L) (std units) (mS/cm) ("F) (gpd) EPN60014-90/O27F Bioassay (% Survival) SP-4 9/24/03 -- 7.1 0.38 23 130 t 76 9/25/03 290 7.1 0.38 22 133747 9/26/03 -- 7.2 0.38 22 121766 9/27/03 -- 7.~ ' 0.38 22 139075 9/28/03 -- 7.2 0.39 22 152395 9/29/03 -- 7.0 0.38 21 111730 9/30/03 -- 7.1 0.38 22 143597 1,00 Effluent Limitation Highest Daily Maximum iNA 6.5-8.3 NA ' NA 500,,000 70 Notes: 1 NA mg/L std units 'mS/cm ~F gpd - constituent was not analyzed. - effluent conductivity not to exceed conductivity of extracted groundwater. -not applicable; effluent limitations not established in Order No. R5-2002,0085. - milligrams.per liter. - standard units. - milli0hms per centimeter. - degrees'Fahrenheit. - gallons per day. ACCESS - rptQtly Table 3b ,Page 4 of 4 Table 3c. IRM-1 Effluent Statistical Analyses, Third Quarter 2003, Shell Oil Products US, ~Bakersfield, 'California. TPH TPH TPH Ethyl- Effluent 'Statistics Month DRO GRO MO !Methanol Ethanol Benzene benzene (l~g/L) (~g/L) (pg/L) ,(I~:J/L) (Ug/L) ,(pg/L) (i. tg/L) m;p- Toluene Xylene o-Xylene MTBE TBA .DIPE iETBE TAME (pg/l_) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) ,(pg/L) Highest.Daily Maxim um July ND · ND ND ND ND ND ND ND ND N'D ND ND ND !ND ND Monthly Average ,July ND ND ND ND ND ND ND ND ND ND ND 'ND 'ND ND ND Monthly Median July ND ND ND ND ND ND ND ND ND ND ND ND iND ND ND Highest Daily MaXimum August ND ND ND ND ND ND ND ND ND ND ND iND IND ND ND Monthly Average August ND ND ND ND ND ND ND ND ND ND ND :ND IND ND ND Monthly Median August ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND .Highest Daily MaXimum September ND ND ND ND ND ND ND ND ND FID ND ND ND ND ND Monthly Average September ND ND ND ND ND ND ND ND ND ND ND ND ND ND · ND Monthly Median September ND ND ND ND ND ND ND ND ND FID ND ND ND ND ND Effluent Limitations !Highest Daily Maximum NA 100 NA 3500 NA :ND(0.5) 29 42 17 2 17 2 5 ~ ND(20) 5 ~ 5 ~ '5 ~ Monthly Median NA ND(50) NA ND(20) NA ND(0.5) ND(0.5) ND(0.5) ND(l) ND(l) ND(5) ND(20) ND(5) ND(5) ND(5) Total Dissolved Effluent Statistics :Month Solids PH Conductivity Temperature Flow Bioassay (mg/L) (std units) (mS/cm) ~(~F) (gpd) (% survival) MonthlylMedian July - 7.30 0.37 23.00 105278 - Monthly Average July - 7.23 0.37 22.68 106399 - Highest Daily Maximum July - 7.30 0.68 _ 23.00 125309 - Monthly Median August -- 7.20 0.36 23.00 108209 -- Monthly Average August -- 7.17 0:36 23.00 ~ 09539 -- Highest :Daily Maxim um August -- 7.30 0.37 25.00 153000 -- Monthly Median September 290 7.00 0.38 22.00 114098 100 Monthly Average September 290 7.06 0:37 22~40 115835 100 Highest Daily'MaXimum September 290 7;20 0.39 23;00 152395 100 Notes: Constituent Abbreviations: 1 - sum of Ethanol, MTBE, DIPE, ETBE, and TAME values not to exceed 5 pg/L. 2 - sum of m,p-Xylane and o-Xylene values not to exceed 17 pg/L. -- - constituent was not analyzed during this time pedod. ND - constituent was not detected during this time period. NA - not applicable; effluent limitations not established in Order No. R5-2002-0085. .DIPE ETBE iMTBE TAME TBA TPH DRO TPH GRO TPH MO - di;isopropyt ether -ethyt tertiary butyl ether - methyl tertiary butyl ether - tertiary amyl methyl ether - tertiary butyt alcohol - total petroleum hydrocarbons diesel range o~ganics - total petroleum hydrocarbons gasoline range,organics - total petroleum hydrocarbons motor oil ACCESS - rptQtly Table 3c :Page 1 of 1 Table 4a. IRM-2 Analytical Results, Third Quarter 2003, BTEX, MTBE, Oxygenates, and TPH, Shell Oil Products US, Bakersfield, California. .EPA Method ~EPA Method 8015M 8015B EPA Method 8260B iEthyl- m,p- Location Sample;Date TPH DRO TPH GRO TPH MO Methanol Ethanol Ethanol Benzene benzene Toluene Xylene o-Xylene ~MTBE TBA DIPE ETBE TAME (pg/l_) (pg/t.) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (po/L) (pg/L) ,(pg/L) (pg/L) (pg/L) (pg/L) 'Extraction Wells B-149 7/9/03 -- - 7/14/03 -- ND(100) 8/6/03 -- ND(100) EW-8 7/9/03 -- 7/14/03 -- 36O0 7/18/03 -- 8/6/03 -- 2100 9/3/03 - 4900 EW-9 7/9/03 - 7/14/03 -- ND(100) 8/6/03 - ND(100) 9/3/03 - ND(100) EW- 10 7/9/03 - 7/14/03 - ND(100) 8/6/03 - ND(100) 9/3/03 -- ND(100) EW-11 7/9/03 - 7/14/03 -- N D(100) 7/17/03 .... 8/6/03 - ND(100) 9/3/03 ND(100) Infiuent Influent IRM-2 IRM-2 7/14/03 ND(1000) 140 6/11/03 ND(1000) 410 9/8/03 N D (1000) 190 GAC-1 IRM-2 7/14/03 - 8/11/03 9/8/03 - GAC-3 rRM-2 7114/93 -~ 8/11/03 -- 9/8/03 -- GAC-2 IRMa2 7/14/03 -- 6/11/03 -- 9/8/03 - - - ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 'ND(l) ND(10) ~ND(2) ND(2) ND(2) ND(100) ND(lO0) ............... ND(100) ND(100) ND(100) ND(0,5) ND(l) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) .... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 18000 1200 ND(2) ND(2) ND(2) ND(100) ND(100) ..................... ................ 8600 ..... ND(100) ND(100) ND(10000) ND(50) iND(100) IND(100)'ND(100) ;ND(100) 10000 2000 ND(200)ND(200)ND(200) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) - -- ND(100) ND(0.5) ND(l) ND(l) IND(1) ND(100) ND(100) .......... :ND(100) ND(100) 'ND(100) ND(0.5) ND(l) ND(l) IND(1) 'ND(100) ND(100) 'ND(100) ND(0.5) ND(l) ND(l) ND(l) - -- ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(100) ...... ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) .... ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(100) ......... .... ND(0.5) ND(l) ND(l) ND(l) ND(100) ND(100) ND(100) ND(0;5) ND(l) ND(l) ND(l) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) 87 ND(10) ND(2) ND(2) ND(2) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) ND(l) 6.7 ND(10) ND(2) ND(2) ND(2) ND(l) ND(l) ND(10) ND(2) ND(2) IND(2) ND(l) ND(l) ND(10) ND(2) =ND(2) IND(2) ND(l) ND(l) iND(10) ND(2) ND(2) ND(2) ND(l) ND(l) ND(10) ND(2) ND(2) ND(2) ND(l) 4.6 ND(10) ND(2) ND(2) ND(2) ND(l) 2 ...... ND(l) 3.8 ND(10) ND(2) ND(2) ND(2) ND(l) 21 ND(10) ND(2) ND(2) ND(2) ND(5000) ND(100) ND(100) ND(5000) ND(100) ND(100) ND(5000) ND(100) ND(100) ND(500) ND(2.5) ,ND(5) ND(500) ,ND(2.5) IND(5) ND(SOO) ND(2.5) ;ND(5) ~ND(5) ND(5) ;ND(5) iND(5) ND(5) iND(5) =ND(5) ND(5) ~ND(5) 310 ND(50) ND(10) ND(10) ND(10) 520 ND(50) ND(10) ND(10) ND(10) 370 ND(50) ND(10) ND(10) ND(10) ND(100) ND(0.5) ND(~I) ND(100) ND(0.5) ND(l) ND(100) ND(0,5) ND(l) 120 ND(0,5) ND(l) ND(100) ND(0.5) ND(l) ND(lO0) ND(0,5) ND(l) ND(100) ND(0;5) ND(ll) ND(100) ND(OS) ND(1 ) ND(100) ND(0;5) ND(l) ND(I) ND(l) ND(l) ND(l) 'ND(10) ND(2) iND(2) IND(2) ND(l) ND(l) ND(l) ND(l) ND(10) ND(2) INDI2) 'ND(2) ND(l) ND(l) ND(l) ND(l) iND(10) IND(2) INDI2) ND(2) ND(l) ND(l) ND(l) ND(l) ND(10) IND(2) ND(2) ND(2) ND(l) ND(l) ND(l) :ND(l) ND(~0) JND(2) ND(2) ND(2) ND(l) ND(l) ND(l) ;ND(l) ND(10) ND(2) ND(2) .ND(2) ND(l) ND(l) ,ND(l) 1;2 ND(10) ND(2) ND(2) ND(2) ND(l) ND(l) iND(1) :ND(l) ND(t0) ND(2) ND(2) ND(2) :ND(l) ND(l) ND(l) 'ND(l) ND(10) ND(2) ND(2) ND(2) ACCESS - rptQtly Table 4a Page 1 of 2 Table 4a. IRM-2 Analytical Results, Third Quarter 2003, BTEX, M'I-BE, Oxygenates, and TPH, Shell Oil Products US, Bakersfield, California.. EPA Method iEPA;Method ,8015M 801:5B EPA Method 8260B !Ethyl- m,p- Location Sample Date TPH DRO TPH GRO TPH MO Methanol Ethanol Ethanol Benzene 'benzane Toluene Xylene o-Xylene MTBE TBA DIPE !ET~BE TAME (pg/1.) (pg/L) (pg/L) (pg/l_) (pg/L) (pg/L) (pg/l_) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (po/L) ,(pg/L) ,(pg/L) (l~g/L) Effluent Effluent IIRM-2 7/14/03' 8/11/03 9/8/03 ND(1000) ND(100) iND(5000) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ' ND(l) ND(~0) ND(2) ND(2) ND(2) ND(1000) ND(100) ND(5000) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND{l) 'ND(l) ND(~0) ND(2) ND(2) ND(2) ND(1000) ND(100) ND(5000) ND(100) ND(100) ND(100) ND(0.5) ND(l) ND(l) ND(l) ND(l) ,ND(l) ND(~10) ND(2) ND(2) ND(2) Effluent'Limitations Highest Daily Maximum NA 100 NA 3500 NA NA ND(0.5) 29 42 17 2 17 2 '5 ~ ND(20) '5 ~ '5 ~ 5 ~ [Notes: 1 - sum of MTBE, DIPE, ETBE, and TAME values not to exceed 5 pg/L 2 - sum of m,p-Xylene and o-Xylene values :not to exceed 17 pg/L. pg/L - micrograms.per!liter. -- - constituent was not analyzed. ND0 - constituent was not detected.at detection limit in parentheses. D - diluted. J - estimated concentration. NA - not applicable; effluent llimitations not establiShed in Order No. ;R5~2002-0085. Constituent Abbreviations: DIPE - di-isopmpyl ether ETBE - ethyl tertiary butyl ether M'rBE - methyl tertiary butyl ether TAME - tertiary amyl methyl ether TBA - tertiary butyl alcohol TPH DRO -total petroleum hydrocarbons.diesel range organics TPH GRO - total petroleum ;hydrocarbons gasoline range organics TPH MO - totallpetroleum !hydrocarbons motor.Oil ACCESS - rptQtly Table 4a Page2 of 2 Table 4b. IRM-2 Analytical Results, Third Quarter 2003, Inorganics and Field Measurements, Shell Oil Products IJS, Bakersfield, California. EPA Method 160.1/160.2 Field Location Sample Total Dissolved Solids pH Conductivity Temperature Flow Date ,(rog/L) (std units) (mS/cm) (fi:) (gpd) EPN600/4-90/O27F Bioassay (% Survival) Influent IRM-2 rRM-2 T-100 Effluent IRMa2 SP-8 7/7/03 -- 6.7 0.41 23 7/14/03 -- 6.8 0.41 23 7/21/03 -- 6.7 0.41 :23 7/28/03 -- 6.8 0.40 23 8/4/03 -- 6.6 0.40 23 8/11/03 -- 6.6 0.41 22 8/18/03 -- 6.8 0.41 25 8/25/03 -- 6.6 0.41 23 9/2/03 - 6.8 0.41 24 9/8/03 -- 6~5 0.42 22 9/15/03 -- 6:8 0.42 23 9/22/03 -- 6~8 0.42 22 9/29/03 -- 6.7 0.43 21 7/1/03 -- · 7.2 0.41 22 153245 -- 7/2/03 -- 7.4 0.42 22 130464 -- 7/3/03 -- 7.3 0.41 22 154627 -- 7/4/03 -- 7.4 0.41 22 137002 -- 7/5/03 -- 7.3 0.42 22 161251 .-' 7/6/03 - 7.4 0.41 23 137246 -- 7/7/03 -- 7.2 0.41 23 173664 -- 7/8/03 -- 7.2 ,0.41 23 133546 -- 7/9/03 -- 7.3 0.42 23 156528 - 7/10/03 -- 7.3 0.41 23 135158 -- 7/11/03 -- 7.3 0.4i 23 147744 -- 7/1 2/03 -- 7.4. 0.40 23 1 ~8498 -- 7/13/03 -- 7.4 0.39 :23 1 ~ 8498 -- 7/14/03 -- 7.2 0.41 :23 237024 -- 7/15/03 -- 7.2 0.41 23 14217~ -- 7/16/03 -- 7.2 0.41 23 154022 -- 7/17~03 -- 7.2 0.41 23 ~ 46088 -- 7/18/03 -- 7.3 0.41 23 ~ 66752 -- ACCESS - ~plQtly Table 4b . Page 1 of 4 Table 4b. IRM-2 Analytical Results, Third ,Quarter 2003, Inorganics and Field 'Measurements, Shell Oil Products US, iBakersfleld, California. EPA rMethod 160.1 l160:2 ~Field Location Sample Total IDissolved Solids PH Conductivity Temperature Flow Date (rog/L) (std units) (mS/cm) (~F) (gpd) EPA/600/4~90/027F iBioassay (% Survival) SP-8 7/19/03 -- 7.3 0,41 23 124445 7/20/03 -- 7;3 '0.41 23 177091 7/21/03 -- 7;2 0.41 23 144576 7/22/03 -- 7.2 O.41 23 145267 7/23/03 -- 7;2 ,0.41 23 163152 7/24/03 -- 7;3 0.4~ 23 152122 7/25/03 -- 7.2 0.41 23 155664 7/26/03 -- 7.2 0.41 23 139421 7/27/03 -- 7.3 0~41 23 161986 7/28/03 -- 7.2 0.40 24 143424 7/29/03 -- 7.2 0.41 :24 148522 7/30/03 -- 7.3 0.41 23 138139 7/31/03 -- 7.3 0.41 23 150062 8/1/03 -- 7.2 0,41 23 151704 8/2/03 -- 7.3 0.41 23 ,'153432 8/3/03 -- 7.3 0.41 23 159365 8/4/03 -- 7.2 0.40 23 150912 8/5/03 - 7.2 0.40 23 141120 8/6/03 - 7.2 0.40 22 171403 8/7/03 -- 7:2 0.40 23 131616 8/8/03 -- 7.3 0.40 23 152021 8/9/03 -- 7.3 0.41 23 146621 8/10/03 -- 7.3 0.40 23 149400 8/11/03 -- 7.1 0~40 23 138139 8/12/03 -- 7.1 0.40 23 101261 8/13/03 -- 7.2 0.40 23 119549 8/14/03 -- 7.1 0.40 23 111557 8/15/03 -- 7.2 0,40 23 114178 8/16/03 -- 7.1 0.41 23 ~ 20614 8/17/03 -- 7.1 0.40 23 ~ 16150 8/18/03 -- 7.3 0.40 24 132048 8/19/03 -- 7.2 0.41 25 87264 8/20/03 -- 7.3 0.41 23 166378 8/21/03 -- 7.0 0.42 24 62798 8/22/03 - ~.2 0.41 24 118080 ACCESS - rptQtly Table 4b Page 2 of 4 Table 4b. IRM-2 Analytical Results, Third Quarter 2003, Inorganics and Field Measurements, Shell ,Oil Products US, 'Bakersfield, California. EPA Method 160.1/1,60.2 Field Location Sample Total Dissolved Solids pH Date (rog/L) (std units) Conductivity Temperature (mS/cra) (~F) Flow (gpd) EPA/600/4.90/027F Bioassay (% Survival) SP-8 8/23/03 -- 7.1 0.40 8/24/03 -- 7.1 '0.41 8/25/03 -- 7.1 0~42 8/26/03 -- 7.1 0.41 8/27/03 -- 7.2 0.41 8/28/03 ~- 7.1 0.41 8/29/03 -- 7.3 0.41 8/30/03 -- 7.3 0.41 8/31/03 -- 7.2 0.41 9/1/03 - 7.3 0.41 9/2/03 - 7.3 0.41 9/3/03 -- 7.3 0.41 9/4/03 -- 7.2 ,0.41 9/5/03 -- 7.3 0.41 9/6/03 -- 7.2 0.40 9/7/03 -- 7.3 0.4~ 9/8/03 -- 6.6 0.43 9/9/03 -- 7;2 0.42 9/10/03 -- 7.3 0.41 9/11/03 -- 7.2 0.41 9/1 2/03 -- 7.3 0.41 9/13/03 -- 7.3 0.41 9/14/03 - 7.3 0.41 9/15/03 -- 7.1 0.43 9/16/03 -- 7.1 0.42 9/17/03 -- 7.2 0.42 9/18/03 -- 7.2 0.41 9/19/03 -- 7.2 '0.42 '9/20/03 -- 7.3 0.42 9/21/03 -- 7;2 0.'42 9/22/03 -- 7;3 0.42 9/23/03 -- 7;3 0.42 9/24/03 -- 7.2 0.42 9/25/03 330 7.2 · 0.42 9/26/03 -- 7.3 0.42 23 106402 -- 23 155578 -- 23 109800 -- 23 122126 -- 23 132091 -- 23 116266 -- 22 131890 -- 22 134122 -- 23 133301 -- 23 116856 -- 23 146952 -- 23 129384 -- 23 110174 -- 23 135317 - 23 116755 -- 23 136296 -- 22 141192 -- 22 134078 -- 22 111672 -- 22 123250 -- 22 141091 -- ,22 115430 -- 22 142027 -- 23 140616 -- 23 t 22126 -- 23 150595 -- 23 117202 -- 23 137750 ;- 23 133776 -- 23 128822 - 22 135893 - 22 129542 -- 23 132221 -- 22 1:35187 100 22 127771 -- ACCESS - rptQtf¥ Table 4b Page 3,of 4 Table 4bo IRM-2 Analytical Results, Third Quarter2003, Inorganics and Field Measurements, Shell Oil =Products US, Bakersfield, California. EPA Method 160.1/160.2 Field E PN60014-90/O27F Location SamPle Total Dissolved Solids pH Conductivity Temperature IFIow Bioassay Date ' (mg/L) (std :units) (mS/cm) (=F) ,(gpd) (% Survival) SP-8 9/27/03 -- 7.'2 0,42 :22 122227 -- 9/28/03 -- 7.2 ' 0,42 :22 135907 -- 9/29/03 -- 7.3 0.42 .21 108950 -- 9/30/03 -- 7.3 0,42 22 123710 -- Effluent Limitation Highest Daily Maximum iNA 6.5-8.3 NA ~ ;NA 500;000 70 Notes: 1 NA mg/t. std units mS/cm gpd constituent was not analyzed. effluent conductivity not to exceed conductivity of extracted groundwater. ~not applicable; effluent limitations.not established in Order No. R5-2002,0085. ,milligrams per liter. .standard units. milli0hms:per centimeter. degrees Fahrenheit. gallons 'per day. ACCESS - rptOlly Table 4b Page 4,of 4 Table 4c. IRM-2 Effluent Statistical Analyses, Third Quarter 2003, Shell Oil 'Products US, Bakemfield, California. TPH TPH TPH Ethyl- m,p- Effluent Statistics Month DRO GRO MO Methanol Ethanol Benzene benzene Toluene Xylene o-Xylene MTBE TBA DIPE ;ETBE TAME (pg/L) (l.tgJ]-) (I.~j/L) {pgJL) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) ,(pg/L) Highest Daily Maximum July ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Monthly Average July ND ND ND ND ND ND 'ND ND ND ND ND ND ND ND ND Monthly Median July ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Highest Daily Maximum August ND ND :ND ND ' ND ND ND ND ND ND ND ND ND ND ND Monthly Average August ND ND ND ND ND ND ND ND :ND ND !ND ND ND ND ND Monthly Median August ND ND ND ND ND ND ND ND :ND ND :ND ND ND ND ND Highest Daily Maximum September ND ,ND 'ND ND iND ND ND ND :ND ND ND ND ND ND ND Monthly Average September ~ND 'ND ND :ND !ND ND ND ND ND ND ND ND ND ND ND Monthly Median September ND ND ND ND ND ND ND ND ND IND ND ND ND ND ND Effluent Limitations Highest Daily;Maximum NA 100 NA 3500 NA ND(O.5) 29 42 17 2 17 2 :5~ 'ND(20) 5 ~ 5 ~ 5 ~ Monthly Median :NA ND(50) NA ND(20) INA ND(0.5) ND(0.5) ND(0.5) ND(1 ) ND(l) .ND(5) 'ND(20) ~ND(5) ND(5) ND(5) Total DissOlved Solids Effluent Statistics Month (mg/L) pH ConductiVity Temperature Flow .Bioassay (std units) (mS/cm) ("F) (gpd) (% survival) Monthly Median July -- 7.30 0.41 23.00 147744 -- Monthly Average July 7.27 0.41 22.90 149916 - Highest'Daily Maximum July - 7.40 0.42 24.00 237024 - Monthly Median August -- 7.20 0.41 23.00 132091 -- Monthly Average August -- 7.19 0.41 23.06 130831 -- Highest Daily Maxim um August - 7.30 '0.42 25.00 171403 -- Monthly Median September 330 7.25 0.42 22.50 130882 100 Monthly Average September 330 7.22 0.42 22.47 129426 100 Highest Daily Maximum September 330 7.30 0.43 23.00 150595 100 iN0tes: I - sum of EthanOl, MTBE, DIPE, ETBE, and TAME values not to exceed 5 I~g/L. 2 - sum of m,p-Xylene and o-Xylene values not to exceed 17 I~g/L -- - constituent was not analyzed during this time period. ND - constituent was not.detected daring.this time period. NA - not.applicable; effluent limitations not established in Order No. R5-2002-0085. Constituent Abbreviations: DIPE .ETBE MTBE TAME TBA TPH DRO TPH GRO TPH MO di-isopropyl ether ethyl tertian/butyl ether methyl tertian/butyl ether tertiary amyl methyl ether tertiary butyl alcohol total petroleum hydrocarbons diesel~range organics total petroleum hydrocarbons gasoline range organics total petroleum hydrocarbons moto~ oil ACCESS -rptQtly Table 4c Page 1 of ~ FIGURES H:\Projects\SHELL\Bakersfield\Final\077-028~3Q 2003\NPDES Report 3Q 2003.doc oIL 0ARY B-125U B-126L DISCHARGE POINT EW-( EW-05 EW.-03 I I .~i B-125U I-B-125M IB-125L I I EW- 14" EW-IO · 1-06 3-127U 1-09 ~"/B-161U ~ B-lSIM EW-08 B-51 B-149 B-150M- B-150U B-001U IRM-2 B-124M B-124~. B-15. ~;'IP-¥/I B-120L oo0 o )'B-121 MW-15 B-101: ;-D SCHARGE ,~, I .... I POINT ._6" DISCHARGE L_IN_E_ 'B-080M B-080L RS-HCI~(~ L-Il LJ o F OO -?o 'HC3B ROWIO STORMWATER '~R-VE~-2 B-108 / MW-12· EXP/..,~N,4 F/ON EXTRACTION WELL TREATMENT PLANT MONITORING WELL WATER SUPPLY WELL CONVERGENCE PIPING PROPERTY LINE 0 500 ft. I I I SCALE TriHydro Corporation 920 Sheridan Street Laramie, Wyoming 82070 Drawn By: DS I Checked ByI FIGURE 1 SYSTEM LAYOUT, IRM-1 AND IRM-2, AND DISCHARGE LINES, SHELL BAKERSFIELD REFINERY, BAKERSFIELD, CALIFORNIA JW I scale: ~,,=5oo, I Date: 5/20/02 I Ref: 077SYSLAYOUT