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Home My WebLink AboutBUSINESS PLAN 10/28/1988APPENDIX C Fresno Modesto Visalia Bakersfield TL 988-099-03 C-1 Appendix C Copies of project team resumes Fresno Modesto Visalia Bakersfield RESUME Bruce Michael Blythe Project (~ologist Environmental Engineering Division, Bakersfield Office Registered Environmental Assessor # 02473 PROFESSIONAL EXPERIENCE Fifteen Years experience geotechnical industries. as geologist serving the petroleum and PROJECT GEOLOGIST, The Twining Laboratories, Inc., - 8/88 to Present Performed site characterization studies, prepared work plans and' remedial action plans, and oversight of remedial activities for underground storage tank related soil and groundwater contamination projects. Conducted Phase I and Phase II environmental assessments for real estate transactions. Overseen groundwater monitoring well design and installation. Prepared[ final compliance and closure plan reports for Class II surface impoundments. EDUCATION San Francisco State University Bachelor of Arts, Geology - 1976 University of California, Santa Barbara Groundwater Hydrology Course - 1990 PROFESSIONAL SOCIETIES American Association of Petroleum Geologists American Concrete Institute Fresno Modesto Visalia Bakersfield ~SUM~ Harry D. Moore Vice-Pres ident/General Manager PROFESSIONAL EXPERIENCE Over (10) years experience in civil and geotechnical engineering. Geotechnical studies include industrial plant sites, schools, hospitals, commercial developments, landfill sites. Seismic investigations for schools and hospitals. Groundwater and hydrological studies, wastewater disposal systems, slope stability analysis, hazardous waste and environmental investigations. TEACHING EXPERIENCE Lecturer, upper division, School[ of Engineering, California State University, Fresno, from 1979 to present. REGISTRATION State of California, Registered Civil Engineer, #35147 State of California, Registered Geotechnical Engineer, #2069 EDUCATION California State University, Fresno B.S. Civil Engineering Specialty: Geotechnical Engineering Professional development and graduate course studies in Environmental and Geotechnical Engineering. Sixty (60) units completed towards Master's degree. Anticipated completion date: Spring, 1989. LICENSE Contractor's License, C57, Well Drilling (Water) PROFESSIONAL SOCIETIES American Institute of Architects American Society of Civil Engineers (Past President) American Public Works Association California Council of Civil EngJ. neers and Land Surveyors California Society of Professional Engineers (Past President) Construction Inspectors Association Construction Specifications Institute National Society of Professional Engineers California Geotechnical Engineering Association F~esno Modesto Visalia Bakerslield APPENDIX B Fresno Modesto Visalia Bakersfield TL 988-099-03 B-1 Appendix B Copies of laboratory results Fresno Modesto Visalia Bakersfield Geotechnicaland EnvironmentaIConsultants · Engineering and Chemical Laboratories REPORT DATE : January 30, 1990 EXAMINATION NO.: 688-4917.1-17 PROJECT MGR: Bruce Blythe CLIENT : Isaacs & Bailey 3939 Bernard Street, Suite #6 Bakersfeild, CIA 94406 PROJECT : Valley Olds TL% 988-099-02 DATE RECEIVED: 10-30-88 In accordance with your instructions, the samples submitted were analyzed for the components specified. Results are enclosed on the following pages. If you have any questions concerning the analysis or results, please contact us. Thank you for letting us serve you. LJ:mrd lc:herewith THE ~'WINING LABORA'£ORIES, INC. try Division [] 2527 Fresno Street · P.O. Box 1472 Fresno, California 93716 · (209) 268-7021 [] 9401 West Goshen Avenue Visalia, California 93291 · (209)651-2190 [] 1405 Granite Lane, Suite 1 [3 3701 Pegasus Drive, Suite 124 Modesto, California 95351 · (209) 523-0994 Bakersfield, California 93308 · (805) 393-5088 REPORT DATE : January 30, 1990 EXAMINATION NO.: 688-4917.1-17 CLIENT : Isaacs & Bailey PROJECT MGR: Bruce Blythe page i of 3 PROJECT : Valley Olds 988-099-02 DATE RECEIVED: 10-30-88 DATE ANALYZED: 12-27-89 ANALYST : D. Deasy, D. Lehman SAMPLE TYPE CONSTITUENT : Soil : Oil & Grease METHOD: EPA 4].3.1 EXAM NUMBER SAMPLE RESULT MDL IDENTIFICATION (mg/kg) (mg/kg) 688-4917.1 688-4917.2 688-4917.3 688-4917.4 688-4917.5 688-4917.6 688-4917.7 688-4917.8 688-4917.9 688-4917.10 688-4917.11 688-4917.12 688-4917.15 688-4917.16 688-4917.17 B-l, 5.8 - 6.8' B-l, 11.5 - 12.5' B-l, 17.3 - 18.3 B-l, 23.0 - 24.0 B-2, 5.0 - 6.0 B-2, 10.0 - 11.0 B-2, 15.0 - 16.0 B-2, 20.0 - 21.0 B-2, 25.0 - 26.0 B-3, 5.0 - 6.0 B-3, 10.0 - 11.0 B-3, 15.0 - 16.0 B-4, 5.0 - 6.0 B-4, 10.0 - 11.0 B-4, 15.0 - 16.0 74000 5 15 5 10 5 10 5 35 5 10 5 5 5 50 5 ND 5 13000 5 33000 5 30 5 35 5 40 5 45 5 NOTES: mg/kg: Milligram per Kilogram ND: None Detected MDL: Method Detection Limit Fresno Modesto Visalia Bakersfietcl REPORT DATE : January 30, 1!)90 EXAMINATION NO.: 688-4917.6 CLIENT : Isaacs & Bailey PROJECT MGR: Bruce Blythe page 2 of 3 PROJECT : Valley 01ds TL~ 988-099-0:~ DATE RECEIVED: 10-30-88 DATE ANALYZED: 12-27-89 ANALYST : D. Deasy, D. Lehman SAMPLE TYPE : Soil CLIENT IDENTIFICATION: S-6 RESULT UNITS MDL METHOD CAM METALS Antimony(Sb), total Arsenic(As), total Barium(Ba), total Beryllium(Be), total Cadmium(Cd), total Chromium(Ct), total Cobalt(Co), total Copper(Cu), total Lead(Pb), total Mercury(Hg), total Molybdenum(Mo), total Nickel(NJ), total Selenium(Se), total Silver(Ag), total Thallium(T1), total Vanadium(V), total Zinc(Zn), total ND ;~. 2 58 0.3 ND 6 ND 13 7 0.6 ND ND ND ND 4, 18 33 mg/kg 100 7040 mg/kg 0.5 7061 mg/kg 0.5 6010 mg/kg 0.1 7091 mg/kg I 6010 mg/kg i 6010 mg/kg 5 6010 mg/kg 5 6010 mg/kg 0.5 7421 mg/kg 0.1 7470 mg/kg 20 7481 mg/kg 5 6010 mg/kg 0.5 7741 mg/kg 3 7760 mg/kg i 7841 mg/kg 5 6010 mg/kg 2 6010 NOTES: mg/kg: Milligram per Kilogram MDL: Method Detection Limit ND : None Detected Fresno Modesto Visalia Bakersfield REPORT DATE : January 30, 1990 EXAMINATION NO.: 688-4917 CLIENT Isaacs & Bailey PROJECT : Valley Olds TL% 988-099-02: DATE RECEIVED: 10-30-88 DATE ANALYZED: 12-27-89 ANALYST SAMPLE TYPE CONSTITUENT METHOD: 7421 EXAM NUMBER : D. Deasy : Soil : Lead (Pb) SAMPLE IDENTIFICATION PROJECT MGR: Bruce Blythe page 3'of 3 RESULT MDL (mg/kg) (mg/kg) 688-4917.5 S-5 3 0.5 688-4917.7 S-7 3 0.5 688-4917.8 S-8 4 0.5 688-4917.9 S-9 4 0.5 NOTES: mg/kg: Milligram per Kilogram as received MDL: Method Detection Limit Fresno Modesto Visalia Bakersfield AG~ICUL TOfl~ C#£AflCAt A~A~ YSI$ _ORATORIES, Inc. J. J. EGLIN, REG. CHEM. ENGR. 4100 PIERCE RD., BAKERSFIELD, CALIFORNIA 93308 PHONE 327-4911 McNabb Construction 7808 Olcott Ave. Bakersfield, CA 93308 ATTN: Bryan McNabb Date Reported: Date Received: Laboratory No.: 02/17/88 02/09/88 1086-5 TOTAL EXTRACT CONTAMINANTS BY ACID DIGESTION Sample Description: Valley Olds, 2/9/88, North Waste Oil Tank @ 2' sampled by; David Rittenhouse Title 22 Total Metals, mg/k~ Sample Results Method Reference TTLC, m~/k~ Antimony 7040 1 Arsenic 7061 I Barium 7080 1 Beryllium 210.1 2 Cadmium 7130 1 Chromium 7190 1 Cobalt 291.1 2 Copper 220.1 2 Lead 39.8 7421 1 Mercury 7471 1 Molybdenum 246.1 2 Nickel 7520 1 Selenium 7741 1 Silver 7760 1 Thallium 279.1 2 Vanadium 286.1 2 Zinc 289.1 2 Cyanides 9010 ! Phenols 420.1 2 Sulfides 9030 1 Fluorides 340.2 2 Hexavalent Chromium 7196 1 Oil & Grease 15326. pH 9040 1 Pensky-Martens Flash Point 1010 1 PCB's 8080 1 TOX, ug/g (-) 20. 9020 1 500. 500. 10000. 75. 100. 2500. 8000. 2500. 1000. 20. 3500. 2000. 100. 500. 700. 2400. 5000. Comment: Ail contaminants reported abovm are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. (-) refers to "less than". (1) "Test Methods for Evaluating Solid Wastes", SW 846, July, 1982. (2) "Methods for Chemical Analysis of Water and Wastes", EPA-600, 14-79-020 B C LABORATORIES, INC. BY J. J. Eglin LABOI:RATORIES, Inc. J. J. EGLIN, REG. CHEM. ENGR. 4100 PII:'RCE RD., BAKERSFIELD, CALIFORNIA 93308 PHONE 327-4911 McNabb Construction 7808 Olcott Ave. Bakersfield, CA 93308 ATTN: Bryan McNabb Date Reported: Date Received: Laboratory No.: 02/17/88 02/09/88 1086-6 TOTAL EXTRACT CONTt~MINANTS BY ACID DIGESTION Sample Description: Total Metals~ m~/k~ Sample Results Valley Olds, 2/9/88, North Waste Oil Tank @ 6' sampled by; David Rittenhouse Title 22 Method Reference Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead 50.4 Mercury Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc Cyanides Phenols Sulfides Fluorides Hexavalent Chromium Oil & Grease 92141. pH Pensky-Martens Flash Point PCB's TOX, ug/g 20. TTLC~ mg/kg 7040 1 7061 1 7080 1 210.1 2 7130 1 7190 1 291.1 2 220.1 2 7421 1 7471 1 246.1 2 7520 1 7741 1 7760 1 279.1 2 286.1 2 289.1 2 9010 420.1 2 9030 1 340.2 2 7196 1 500. 500. 10000. 75. 100. 2500. 8000. 2500. 1000. 20. 3500. 2000. 100. 500. 700. 2400. 5000. 9040 1 1010 1 808O 1 9020 1 Comment: All contaminants reported above are in mg/kg (unless otherwise state~) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. (-) refers to "less than". (1) "Test Methods for Evaluating Solid Wastes", SW 846, July, 1982. (2) "Methods for Chemical Analysis of Water and Wastes", EPA-600, 14-79-020 B C LABORATORIES, INC. BY J. J. Eglin The Twining Laboratories, Inc. CHAIN OF CUSTODY RECORD Project No. ~v/r-~ 1 ~,.,,r 01¢~ Affiliation of Sampler/Shipper ~ t~,~ ~~ Number Stre~ ~ty ~tate Collector's Name. ~~ ~~~ Transported By Zip Signature (_~z).~/_~:~" Date Shipped Telephone Sample Receiver Address Date/Time Received Comments Collector's Sample No. Sample Description \ q ¢, --4"' Chain of Possession: Signat~'re 3. Signature Signature Affiliation Affiliation Affiliation Inclusive Dates Inclu$iYe Dates Inclusive Dates Inclusive Dates The Twining Laboratories, Inc. CHAIN OF CUSTODY RECORD Project No. V¢-~ 1 ~ ~)1~0~ DatelTime Sampled~rO ~ ~f~ Affiliation of Sampler'lShipper '""~ ~' ~ '~"C'~; J'~--~:~.~ Number Stree~ ~ Collector's Name ~~ [ Transported By Zip Telephone Signature (-~-)~Z::7 Date Shipped Sample Receiver Address Date/Time Received Comments Collector's Sample No. Sample Description Chain of Possession: 1. . (.) Sig~atl~'~ 3. Signature 4. Signature Affiliation Affiliation Affiliation Inclusive Dates Inclusive Dates Inclusive Dates Inclusive Dates The Twining Laboratories, Inc. CHAIN OF CUSTODY RECORD Project No. V~-~ 1[~ Date/Time Sampled [O Affiliation of Sampler/Shipper "~,.~ t Address '7'~'~ I ~__~ ~i'c~-'~'~/~,. Number Stree~ d~lty ~tate Collector's Name_ ~~ TranSported By Zip Telephone Signature <"~-~"'~7 Date Shipped Sample Receiver Address Date/Time Received Comments Collector's Sample No. Sample Description Chain of Possession: 3. Signature 4. Signature Affilia~on Affiliation Affiliation Affiliation Inclusive Dates Inclusive Dates Inclusive Dates Inclusive Dates AG~IICU~ CN£~IICAi A~A~ LABOF:IATORIES, Inc. J. J. EGLIN, REG. CHEM. ENGII. 4100 PIE!RCE RD., BAKERSFIELD, CALIFORNIA 93308 PHONE 327-491 I McNabb Construction 7808 Olcott Ave. Bakersfield, CA 93308 AT~7~: Bryan McNabb Date Reported: Date Received: Laboratory No.: 02/17/s8 02/09/88 1086-7 TOTAL EXTRACT CONT~,J~INANTS BY ACID DIGESTION Sample Description: Valley Olds, 2/9/88, North Waste Oil Tank Line @ 2' sampled by; David Rittenhouse Title 22 Total Metals, mg/kg Sample Results Method Reference TTLC, mg/kg Antimony 7040 1 Arsenic 7061 1 Barium 7080 I Beryllium 210.1 2 Cadmium 7130 1 Chromium 7190 1 Cobalt 291.1 2 Copper 220.1 2 Lead 590. ~ 7421 1 Mercury 7471 1 Molybdenum 246.1 2 Nickel 7520 1 Selenium 7741 1 Silver 7760 1 Thallium 279.1 2 Vanadium 286.1 2 Zinc 289.1 2 Cyanides 9010 1 Phenols 420,1 2 Sulfides 9030 1 Fluorides 340.2 2 Hexavalent Chromium 7196 1 Oil & Grease 67823.~ pH 9040 1 Pensky-Martens Flash Point 1010 1 PCB's 8080 1 TOX, ug/g (-) 20. 9020 I 500. 500. 10000. 75. 100. 2500. 8000. 2500. 1000. 20. 3500. 2000. 100. 500. 7O0. 2400. 5000. Comment: Ail contaminants reported above are in mg/kg (unless otherwise stated) on an as, received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. (-) refers to "less than". (1) "Test Methods for Evaluating Solid Wastes", SW 846, July, 1982. (2) "Methods for Chemical Analysis of Water and Wastes", EPA-600, 14-79-020 B C LABORATORIES, INC. BY J. J. Eglin P£TI~Ot£UI~ --ORATORIES, IF]C. J. J. EGLIH, REG. CHEM. ENGII. 4100 PIEIICE RD., BAKERSFIELD, CALIFORNIA 93308 PHONE 327-4911 McNabb Construction 7808 Olcott Ave. Bakersfield, CA 93308 ATTN: Bryan McNabb Date Reported: Date Received: Laboratory No.: 02/17/88 02/09/88 1086-8 TOTAL EXTRACT CONTAMINANTS BY ACID DIGESTION Sample Description: Total Metals, m~/k$ Antimony 7040 1 Arsenic 7061 1 Barium 7080 Beryllium 210.1 2 Cadmium 7130 1 Chromium 7190 1 Cobalt 291.1 2 Copper 220.1 2 Lead 11.8 7421 1 Mercury 7471 1 Molybdenum 246.1 2 Nickel 7520 1 Selenium 7741 1 Silver 7760 ! Thallium 279.1 2 Vanadium 286.1 2 Zinc 289.1 2 Cyanides 9010 1 Phenols 420.1 2 Sulfides 9030 1 Fluorides 340.2 2 Hexavalent Chromium 7196 1 Oil & Grease 1428. pH 9040 1 Pensky-Martens Flash Point 1010 1 PCB's 8080 1 TOX, ug/g (-) 20. 9020 1 Valley Olds, 2/9/88, North Waste Oil Tank Line @ 6' sampled by; David Rittenhouse Title 22 Sample Results Method Reference TTLC~ m§/kg 500. 500. 10000. 75. 100. 2500. 8000. 2500. 1000. 20. 3500. 2000. 100. 500. 700. 2400. 5000. Comment: Ail contaminants reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. (-) refers to "less than". (1) "Test Methods for Evaluating Solid Wastes", SW 846, July, 1982. (2) "Methods for Chemical Analysis of Watar and Wastes", EPA-600, 14-79-020 B C LABORATORIES, INC. BY J. J. Eglin ZAI_CO LABOI IATOI IIi S, IN( . Analytical Consultin j Seevices Twinir~Labortories 3701 Peqasus Drive, Suite #124 Bakersfield, CA 93308 Laboratory No: Date Received: EateReported: 26011-1 12-19-90 1-2-91 Attention: Bruce Blythe Sample: Brc~n Solid (type i) Sample Description: B-3 2.0-2.5' BSG 5-16 Project Name: Isaacs & Bailey Sampled by Bruce Blythe on 12-19-90 at 1300 Hrs Enclosed please find theresults oft_he laboratory analyses for char~ization of the sample by the CATIFORNIAASSESSMENTMANUAL (CAM effective 10-27-84). The guidelines for amm]ysis and characterization are set forth in Title 22, CALIFORNIA AI1MINISTRATIVE OODE, ARIT~ II, Sections 66693 to 66723, the "Criteria for Identification of Hazardous and ExtremelyHazardousWaste." Based on the analyzed constituents, the sample would be considered hazardous for the following parameters. The soluble concentration of Lead exceeds the Soluble ~reshold Limit Concentration. RLP/j r Richmrd L. Penner Labor~tory Director 4309 Armour Avenue Bakersfield, California 93308 ZAI_CO cAE OI IATIDI III S, INf . Analytical Consulting Seevices Twining Tahortories 3701 Pegasus Drive, Suite #124 Bakersfield, CA 93308 Attention: Bruce Blythe Sample: Brc~n Solid (type i) Sample Description: B-3 2.0-2.5 ' Page 1 of 2 Laboratory No: Date Received: 26011-1 12-19-90 1-2-91 BSG 5-.16 Project Name: Isaacs & Bailey Sampled by Bruce Blythe on 12-19-90 at 1300 Hrs CAM - Title 22 (~a~ 30, Article 11 T~C/S~C Total Extractable Concentration Concentration MRL (TC) rog/kg WET, (EC) m~/1 TC/EC Method/ Reference Antimony, Sb 500/15 Arsenic, As 500/5.0 Barium, Ba 10000/100 Beryllium, Be 75/0.75 Cadmium, Cd 100/1.0 C21romium, Cr 2500/560 Chromium, (VI) 500/5.0 Cobalt, Co 8000/80 Copper, Cu 2500/25 Lead, Pb 1000/5.0 Mercury, Hg 20/0.2 Molybdenum, Mo 3500/350 Nickel, Ni 2000/20 Selenium, Se 100/1.0 Silver, Ag 500/5.0 Thallium, T1 700/7.0 Vanadium, V 2400/24 Zinc, Zn 5000/250 < 0.2 10./0.2 6010/1 0.15 0.5/0.005 7061/1 13 5.0/0.1 6010/1 < 0.01 0.5/0.01 6010/1 0.033 0.5/0.01 6010/1 2.5/0.05 6010/1 < 0.1 0.05/0.1 7190/1 0.14 5.0/0.1 6010/1 8.6 2.5/0.05 6010/1 75 2.5/0.05 6010/1 < 0. 002 0.02/0. 002 7471/1 < o. 1 5.0/0.1 6010/1 0.22 2.5/0.05 6010/1 < 0. 005 0.05/0. 005 7741/1 < 0.02 1.0/0.02 6010/1 < 0.2 10./0.2 6010/1 0.67 5.0/0.1 6010/1 11 2.5/0.05 6010/]. TITC - Total Threshold Limit Concentration, mg/kg STLC - Soluble Threshold Limit Concentration, mg/1 in extract WET - Waste Extraction Test: pH 5.0 Sc.lution, 0.2 M Citrate Buffer Deionized. water for Chromium (VI) MRL - Minimum Reporting Level ,,4309 Armour Avenue Bakersfield, California 93308 FAX r805] 395-3069 _ZAI_CO LAB01~IAT01~II~S, IN(~. Analytical & Consulting Seevioes Page 2 of 2 Laboratory No: 26011-1 Result Method/Ref~ pH (1:1 DI) 8.2 Free Sulfide, mg/~ H2S < 10 Free Cyanide, m~/~ HCN < 1.0 No Free Liquid Flash Point to 200 °F, PMCC None det~fced 9045/1 10 7.3.4.1/1 1.0 7.3.3.2/1 1310/1 20 D-93/3 Or~c Constituents Petroleum Hydrocarbons, mg/kg 66300 Total Organic Halogens, Cl, mg/kg 1.8 50 1.0 Sonicator, 418.1/2 Modified 9020/1 Method References: 1. EPA SW-846, 1986 3rd Edition 2. EPA 600/4-79-020 March 1983 3. A.S.T.M. RLP/j r Richard L. Penner Laboratory Director 4309 Armour Avenue F~al<ersfield, California 93308 __ZAI_CO L_ABOI~IATOI~III~S, IN(~. Analytical ~, Consultiing Services Twining Labortories Laboratory No: 3701 Pegasus Drive, Suite #124 Date Received: Bakersfield, CA 93308 Date Reported: Attention: Bruce Blythe Sample: Brown Solid (type i) Sample Description: B-3 8.0-8.5 ' BSG 5--17 Project Name: Isaacs & Bailey Sampled by Bruce B2[ythe on 12-19-90 at 1300 Hrs 26011-2 12-19-90 1-2-91 Organic Constituent Result MRL Method/Reference Petroleum Hydrocarbons, rog/kg 5850 50 Sonicator, 418.1/1 Method References: 1. EPA 600/4-79-020 March 1983 RLP/j r Richard L. Penner Laboratory Director 4309 Armour Avenue Bakersfield, California 93308 Page /" of / '' THE TWINING LABORATORIES, INC. 2527 Fresno Street, Fresno, CA 93721 (209) 268-7021 Chain-of-Custody and Analysis Request Record Report To: Copies To: Client Name Address ;'P:~,~/ .~'~.~;~._rz_,'! ,~,~. ,.~?,~/ Contact Name z~/t/ld.~E. _~-'~u,'7-/~/,~. , Phone J~'5;~- E"~///'J Contract/PO# Sampler Name /'~'~. (Print) Expected Turnaround: [] Rush [] Routine Specify Time .~,// /- .2 - r-'l FAX # Client Sample Sample Sample ID Date/Time Type #/Size/Type of Container · Anal Requested Each hazardous sample submitted for analysis will be charged a hazardous waste disposal fee. Clients that retrieve hazardous samples within 30 days of the analytical report date will be refunded any disposal fees.. · Relinquished By: .......... ,.. . 'Delivered By: signatu;~....,~_:~ . ..~..,- _.,.,.¢" ~_.~.~.... · "Date/Time/,~' Comments: (BILL TO IF OTHER) Company Date/Time ./~,~ '~',.- - ~- --) .,-"J'-~. J , gNA ........AFll= ...... ")FI ¢ ......:F I I'. ..... ~I.YI Geotechnic&land Environmental Consultants · Engineering and Chemical Laboratories REPORT DATE : January 23, 1991 EXAMINATION NO.: 691-0272.1 PROJECT MANAGER: B. Blythe CLIENT : Isaacs & Bailey 3939 Bernard Street Bakersfield, CA 93308 PROJECT NAME : Valley Olds 2600 "H" Street Bakersfield, CA 93308 DATE SAMPLED : 01-14-91 at 1000 hrs. by B. Blythe DATE RECEIVED: 01-16-91 at 1435 hrs. from R. Romanazzi The Twining Laboratories is accredited by the State of California Department of Health Services for the analysis of Drinking Water and Hazardous Waste under Certificate No. 1371. In accordance with your instructions, the samples submitted were analyzed for the components specified. All samples analyzed were in good condition. The analytical results are enclosed on the following pages. Please contact us if you have any questions concerning the analyses or results. Thank you for letting us serve you. THE TWINING LABORATORIES, INC. Jon L. Strutzel Inorganic Supervisor, Chemistry Division JLS:mkr lc:herewith Fresno Street · P.O;Box 1472 no, California 93716 (209) 268-7021 1405 Granite Lane, Suite 1 Modesto, California 95351 ° (209) 523-0994 [] 9401 West Goshen Avenue Visalia, California 93291 · (209)651-2190 [] 3701 Pegasus Drive, Suite 124 Bakersfield, California 93308 · (805) 393-5088 REPORT DATE : January 23, 1991 EXAMINATION NO.: 691-0272.1 PROJECT MANAGER: B. Blythe PAGE 1 of 1 CLIENT : Isaacs & Bailey PROJECT NAME : Valley Olds DATE SAMPLED : 01-14-91 at 10,00 hrs. by B. Blythe DATE RECEIVED: 01-16-91 at 14~35 hrs. from Ro Romanazzi DATE PREPARED: 01-16-91 DATE ANALYZED: 01-22-91 ANALYZED BY REVIEWED BY : D. Lehman : J. Strutzel SAMPLE TYPE : Soil SAMPLE IDENTIFICATION: S-18 at 2.5 - 3.0 METHOD: 7420 CONSTITUENT RESULT MDL (mg/L) (mg/L) Lead (Pb), total 30 0.4 NOTES: mg/L: milligrams per Liter (]parts per million) MDL : Hethod Detection Limit ND : None Detected Fresno Modesto Visalia Bakersfield Date Page (209) 268-7021 hain-of-Custody and Analysis Request Record Reporl To: Client Name .~_~'/-'/-~J_~_' /"'~'f-~/C_~ Address -~-~"~-~ .J ~ /~ ~/=~Z ~ . ~'~-- Contact Name ~J~ 0/~ ~/~/~ ~. Phone ~ -~ ~5' Contract/PO~ Sampler Name ~ - /~,~/~ ._ .. (Print) Copies To: Expected Turnaround: [] Rush yRoutine Specify Time [:3 FAX # Analysis Requested - /:///////// L Client Sample Sample i~[ Sample ID Dale/Time l'ype ,/Size/Typeo,Co.,¢i.er - ' '*f;5 H*~': '..,.. :,:'/,~;~,~ ~,',~?, '~ .'.-' ~:~ ~,.::'~.'. ..... .-.~,.., ~..,.~-.,.:~ ~.;- '-..;~, ~v~ .,.?~..:' .~. _~.:~.._....: ;..', .. .... ~.,~,. .,. ?., ...~.......¥...~,.~.~:=..,,.~!; ...... -- ,' i ', '' ' . :.'~ 1~"i '~, , - ' , ' __ , ~..%,~ ~,,.[.4~e~,~,...)h~2.l ~,. 7~;i.i.t,' ,.t~ , . Comments. (BILL TO IF OTHER) , De t~' mtlal~ ~ ,**',C-Da .... · · ~- ~ · -~ · . · '.~'- , ,~._~ .... ~,.., . ................... s, ,. be charged a hazardous waste d~sposal fee. Chents ............................................................. ~... ..... that retrieve hazardous samples within 30 days of the analytical report date will be refunded any .................................................. ~['~~'~.:,'. .... ~ ............ : r:. . ' ' . ' 4 ~""' ~'~;': ¢"~' '~ ' '" "' ' "'[ ' ~ '" ~ ;' ' ' '~ '~ .": "~:~,~'"' . ' ~ '~ ' ' ¢` '; ~ · .......................................... S,.n ,ur .... ,teu _ ~r~nmo _~~¢~~z J ~O~DSQ~,~' ~~~t~ 7 ' ' ~L~ ~ ' ' ~ '., , '"'~ ...... . . - ~ , . .~.~ .. -. ., . .~ ..../:...~,.%., ,~,'~r~ .... .... Date/Time Date/T.me ~-'' *, , .,~-- ~~ ~;g ~¢'.~O~ :' Log.., 0: b~ (SHADED AREAS FOR OFFICE USE ONLY) APPENDIX A Fresno Modesto Visalia Bakersfield TL 988-099-03 A-1 A_Rpendix A Copies of logs of soil borings Fresno Modesto Visalia Bakersfield TL 989-099-02 A-1 APPENDIX A LOG OF BORINGS This appendix contains the final logs of borings. These logs represent our interpretation of the contents of'the field logs and the results of the field tests. The boring logs and related information depict subsurface conditions only at these locations and at the particular time designated on the logs. Soil[ conditions at other locations may differ from conditions occurring at these boring locations. Also, the passage of time may result in changes in the soil conditions at these boring locations. In addition, an explanation of the abbreviations used in the preparation of the logs, and a description of the Unified Soils Classification System are provided. Fresno Modesto Visalia Bakersfield LOG OF BORING PROJECT: VALLEY OLDSMOBILE HOLE No.: B-1 2300 "H" STREET, BAKERSFIELD, CALIFORNIA SHEET No. ] OF 1 JOB No: qRR-~99-02 LOCATION: See Site Map and Remarks DRILL TYPE: B-40 DRILLED BY: T. Conlev LOGGED BY: T. Wright ELEVATION: TOP OF HOLE: - - FT. REMARKS: 7 feet west and 2 feet north from GROUNDWATER: - - northeast buildinK corner DATE: STARTED: I~/?R/~ (30° slant dr~ll beneath buildin~ COMPLETED: 10/28/88 ~ ~_ ~ GRADATION ENGINEERING . ~ ~z~ ~ --~ PERCENT ~ROPERTIES: ~ ~ z~ ~ ~ -- RETAINED rEST, TYPE AND ~ CLASSIFICATION AND DESCRIPTI'ON ~o-~ -- z ~ -- ~ ~ x ~ ~ ~ oo ~-- ~ ~LATE NUMBER - Asphalt Paving at Surface 5-- SAND, Silty; very moist, ~ medium grained, gray (SM) ~ LRS Decreasing moisture content SAND, Poorly Graded; moist, fine to medium grained, tan LRSi (S?) - SILT, Sandy; moist, low plasti-LRS _ city, dark brown (bfL) 20~ Increasing Sand Content ~RS Boetom of Boring 25-- Tho T ining Virile Fresno M~esto Be~r~M PROJECT: VALL___?_ 0~~ HOLE~]i.: B-2 2300 "H" STREET~ ~'AKERSFIELD, CALIFORNIA SHEET-No. 1 OF 1 JO8 No: qgg-Oqg-02' LOCATION: See Site Map and Remarks DRILL TYPE: B-40 By: BY: T~ ELEVATION: TOP OF HOLE: - - Fi'. DRILLED T. Conley LOGGED Wright REMARKS: 10 feet west and 6 feet north from GROUNDWATER: '- - nnrth~a~t building corner DATE: STARTED: 10/28/88 COMPLETED: ±0/18/88 '~ ~=~ ~A ~ ~_> GRADATION ~NG,NEER,.G , ~ = z ~ -- ~ PERCENT =ROPERTIES: ~ z~ ~ ~ ~ ~ -- RETAINED rEST, TYPE ANDi ~ CLASSIFICATION AND DESCRIPTION ~o~ '-- z ~ -- ~ ~ x ~ ~ ~ o o ~-- ~ ~ ~LATE NUMBER _ ksphalt ~aving at - , Surface 5-- SAND, Silty; moist, fine to medium grained, dark brown ~RS - (SM) 10-- Increas±ng sand content 15 Becoming brown, interbedded silt and poorly graded sand lenses ~RS SAND, Poorly Graded; moist, - fine to coarse grained, tan ;RS _ (sP) 25 -- ' ]RS Bottom of Borin~ The'-Twining Labo~.ator'ie$, inc. Vlsalia Fresno MoOesto Bakersfield TLI06 PROJECT: VALLEY O__bD SMOB I______m~__ HOLEO.: ~ B-3 2300 "H" STREET~ ~RiERSFIELD, CALIFORNIA SHEET No. 1 OF 1 J08 No: 988-099-02 LOCATI'0N: See Site Map and Remarks DRILL TYPE: B-40 DRILLED BY: T. Conle7 LOGGED BY: T. Wright ELEVATION: TOP OF HOLE: - - FT. REMARKS: Center of Former Tank Location GROUNDWATER: DATE: STARTED: 10/28/88 COMPLETED: 10/28/88 ,,,~)_ ~'~. .j ~_>- GRADATION ENGINEERING · ~_ ~ z .~ -- o. PERCENT PROPERTIES: ,,,.~ ~- -. ~n ~- "~ -- RETAINED TEST, TYPE AND CLASSIFICATION AND DESCRIPTION .~o---~n -z --~- ~x ~ ~-:: ~ o o = -- ~n ,,, ~%PLATE NUMBER - S~-D; very silty, ~oist, §ray - $-- LRS! 15 -- SAND; very silty, moist, - becoming brown (SM) LRSi ~0 - GRAVEL LRS - SAND, Poorly Graded; fine to ~-5- loose grained with gravels, tan LRS B~ttom 0~ Borin~ ~SF) The. Twinin t t. ho . tor'ies, Inc. . ~/]salia Fresno Idoclesto Bakersfield TLI06 PROJECT: LD MOBI HOL~I~.: B-4 2300 "H"STREET,~AKERSFIELD, CALIFORNIA SHEET No. 1 OF 1 JOB No:- 988-099-02 LOCATION: See Site Map and'Remarks ORILL TYPE: B-40 DRILLED BY: T. Conley LOGGED BY: Wright ELEVATION: TOP OF HOLE: FT. T: REMARKS: 0 feet east and 12 feet north from GROUNDWATER: - - northeast building corner DATE: STARTED: 10/28/88 COMPLETED: 10/28/88 I ' ~ ~ ~ ~ ~_> GRADATION ENGINEERING ~' ~ ~ = ~ -- ~ PERCENT PROPERTIES: ~ ~-~ ~ ~ ~ ~ RETAINED TEST, TYPE AN'D ~ CLASSIFICATION AND DESCRIPTION SAND, SiZty; moist, fine to medium grained, dark brown (SM) 5~ LRS S/M',lD, Poorly Graded; mo±st, LRS fine gra±ned ro coarse, ~an LRS 20~ GRAVELS - LRSI 25~ LRS Bottom or goring / The'-. TWin ng t. bo to ies, Inc. Vlsalia ' F~esno Moaesto Bakerslield TL 989-099-02 A-2 LOGS OF EXPLORATIONS EXPLANATION OF ABBREVIATIONS LRS Split barrel ring sampler, 2.5-inch I.D., for taking undisturbed samples. SSS (SPT) Standard penetration resistance tests-- results recorded as the number of blows of a 140 pound hammer falling 30 inches required to drive a 2 inch O.D. split sample spoon the second and third 6 inch increments of an 18 inch distance. Fresno Modesto Visalia Bakersfield MAJOR DIVISIONS SYMBOLS TYPICAL NAMES GW Well-graded gravels or gravel-sand mixtures, little or no fines Poorly graded qravels or gravel-sand mixtures, little or no GRAVELS GP fines -- m (More than '& of coarse GM Silty gravels, gravel-sand-silt mixtures ~u. j O ~ fraction > no. 4 sieve size) '~ GQ Clayey gravels, gravel-sand-clay mixtures ~ o° SW Well-graded sands or gravelly sands, little or no fines o~ Poorly graded sands or gravelly sands, little or no fines SP ~O~ A (More than ',~ of coarse SM Silty sands, sand-silt mixtures fraLliOn · no. 4 sieve size) SC Clayey sands, ,';and-clay mixtures ML Inorganic silts and very fine sands, rock flour, silty or clayey fine sands or clayey silts with slight plasticity o,?, ~ SILTS & CLAYS CL Inorganic clay~s of Iow to medium plasticity, gravelly clays, sandy clays, silly clays, o., LL ~ 50 lean clays c '~ OL Organic silts and organic silty clays of Iow plasticity E o~ ME Inorganic silts, micaceous or diatomaceous fine sandy or silty soils, elastic silts :~ ~ SILTS &CLAYS' ,, c CH Inorganic clays ~)f high plasticity, fat clays ..,v LL > 50 OH Organic clays Df medium to I~igh plasticity, organic silty clay, organic silts HIGHLY ORGANIC SOILS Pt Peat and other highly organic soils UNIFIED SOIL CLASSIFICATION SYSTEM COHESIVE SOILS GRANULAR SOILS Description Blows/ft. Description Blows/It. very sott ~ 2 very loose soft 2 ,/~ ~oose 5- 1 C) medium(firm) 5 - ~ medium dense 1 1 - ~ 0 stiff 9 ' 1 5 dense very stiff I 6 - ~ 0 very dense ~ ~ 0 hard ~' 3 0 CONSISTENCY CLASSIFICATION ' CLASSIFICATION RANGE OF GRAIN SIZES U.S. Standard Grain Size Grain Type Sieve Size in Millimeters Boulders above 12" above 305 Cobbles 12" to 3" 305 to 76.2 Gravel 3" to no. 4 76.2 to 4.76 coarse (c) 3~ to -~ 76.2 to 19.1 fine (f) Y,~ to no. 4 19.1 to 4.76 Sand no. 4 to no. 200 4.76 to 0.074 coarse (c) no. 4 to no. 10 4.76 to 2.00 medium (m) no. 10 to no. 40 2.00 to 0.420 fine (f) no. 40 to no. 200 0.420 to 0.074 Silt & Clay below no. 200 below 0,074 GRAIN SIZE CLASSIFICATION 50 Z 40 ~ 30 ~ 20 I CH CL CL--[~,~'~ ML & OL I ! 4 0 I0 20 30 40 50 60 70 80 90 I00 LIOUID LIMIT PLASTICITY CHART Geotechnicaland EnvironmentaIConsultants · Engineering and Chemical Laboratories REMEDIAL ACTION PLAN V~T.T.F.Y OLDSMOBILE FACILITY 2300 "H" STREET BAKERSFIELD,, CALIFORNIA Prepared For: Isaacs and Bailey 2707 "F" Street Bakersfield, California March 19, 1991 93301 2527 Fresno Street · P.O. Box 1472 Fresno, California 93716 · (209) 268-7021 9401 West Goshen Avenue Visalia, California 93291 · (209)651-2190 1405 Granite Lane. Suite 1 3701 Pegasus Drive, Suite 124 TL 988-099-03 1.0 2.0 3.0 4.0 TABLE 0,F CONTENTS INTRODUCTION ................................... BACKGROUND INFORMATION ......................... 2.1 Property Description ...................... 2.2 Regional Geology ........................... 2.3 Regional Hydrology ......................... 2.4 Project History ........................... 2.5 Summary of Remedial Investigation ......... 2.5.1 Field and Laboratory Investigation . 2.5.2 Results of Soil Sample Analyses .... 2.6 Findings of Supplementary Investigations .. 2.7 Extent of Petroleum Product Migration ..... 2.8 Regulatory Considerations ................. 2.9 Potential Environmental Effects ........... REMEDIAL ACTION PARAMETERS ...................... 3.1 Site Features .............................. 3.2 Extent of Soils Requiring Remediation ..... 3.3 Remedial Action Alternatives .............. 3.3.1 No-Action .......................... 3.3.2 Bioremediation ..................... 3.3.3 Excavation and Disposal ............ PROPOSED REMEDIAL ACTION ALTERNATIVE ........... 4.1 Proposed Clean-up Levels .................. PAGE 1 2 2 2 3 4 5 6 6 9 12 13 14 15 15 16 17 17 18 19 22 22 Fresno Modesto Visalia Bakersfield TL 988-099-03 5.0 6.0 7.0 TABLE OF CONTENTS 4.2 4.3 4.4 4.5 Excavation ................................ Confirmation Sampling ..................... Transportation and Disposal to WMU ........ Closure ................................... HEALTH AND SAFETY PLAN ......................... 5.1 Introduction .............................. 5.2 Project Safety Authority .................. 5.3 Job Hazard Analysis ....................... 5.3.1 Chemical Hazards ................... 5.3.2 Physical Hazards ................... 5.4 Risk Assessment Summary. .................. 5.5 Personal Protective Equipment ............. 5.6 Work Zone and Security .................... 5.7 Decontamination Protocol .................. 5.8 General Safe Work Practices and Sanitation Requirements ................... 5.9 Emergency Procedures ...................... LIMITATIONS ................................... CLOSING ....................................... PAGE 22 24 24 24 25 25 25 25 25 27 28 29 30 30 31 31 32 34 Fresno Modesto Visalia Bakersfield TL 988-099-03 TABLE OF CONTENTS LIST OF DRAWINGS Drawing No. 1 - Project Location Map Drawing No. 2 - Project Site Plan Drawing No. 3 - Known Horizontal Extent of Petroleum Product Migration Drawing NOo 4 - Known Vertical Extent of Petroleum Product Migration Drawing NOo 5 - Estimated Horizontal Extent of Soils Requiring Remediation Drawing No. 6 - Estimated Vertical Extent of Soils Requiring Remediation Drawing No. 7 - Location and Route to San Joaquin Community Hospital LIST OF TABLES Table No. 1 - Table No. 2 - Table No. 3 - Table No. 4 - Table No. 5 - Table No. 6 - Analytical Results of Soil Sample Analyses Analytical Results of Soil Sample Analyses Oil and Grease and Total Lead Analytical Results of Soil Sample Analyses Total Metals Analytical Results of Soil Sample Analyses Oil and Grease and Soluble Metals Analytical Results of Soil Sample Analyses Lead Estimated Cost For Excavation and Disposal Remedial Action Alternative Fresno Modesto Visalia Bakersfield TL 988-099-03 TABLE OF CONTENTS LIST OF APPENDICES Appendix A - Log of Soil Borings Appendix B - Results of Laboratory Analyses Appendix C - Project Team Resumes Fresno Modesto Visalia Bakersfield Geotechnical and Environmental Consultants · Engineering and Chemical Laboratories REMEDIAL ACTION PLAN VAr.r. EY OLDSMOBILE FACILITY 2300 'H" STREET BAKERSFIELD~, CALIFORNIA 1.0 INTRODUCTION This report presents a remedial action plan (RAP) for the mitigation of soils containing oil and grease constituents resulting from a former 550-gallon underground used oil tank (UST) which was maintained by Valley Oldsmobile at 2300 "H" Street in Bakersfield, California (site) until February 9, 1988. The preparation of this RAP was authorized by Mr. Cecil Bailey of Isaacs and Bailey on November 5, 1990, by verbal agreement. This report presents background information concerning the project, the remedial action parameters, the proposed remedial action method, and the project health and safety plan. The three report appendices contain the logs of soil borings drilled during the remedial investigation (RI) phase of the project (Appendix A), the documentation of the laboratory analyses performed on the soil samples for the initial and supplementary phases of the RI (Appendix B), and copies of the project team resumes (Appendix C). This RAP report was prepared by the Environmental Engineering Division of The Twining Laboratories, Inc. (Twining) in Bakersfield, California. 2527 Fresno Street · P.O. Box 1472 Fresno, California 93716 - (209) 268-7021 [] 9401 West Goshen Avenue Visalia, California 93291 · (209)651-2190 l'-I 1405 Granite Lane. Suite 1 ~, 3701 Pegasus Drive, Suite 124 TL 988-099-03 Page 2 2.0 BACKGROUND INFORMATION A brief description of the site features, regional geological and hydrological characteristics, and. the site history are summarized in the following subsections. 2.1 Property Description: The site is located at 2300 "H" Street in the city of Bakersfie].d, Kern County, California. The site is rectangular in shape and ~measures approximately 800 feet by 300 feet in plan dimension. The site is bound on the north by 24th Street, on the south by 23rd Street, on the east by Eye Street, and on the west by."H" Street. A project location map is presented on Drawing No. 1. The site is occupied by the former Valley Oldsmobile facility which consists of a vacant automobile sales lot, a vacant automobile repair shop, a vacant automobile showroom and business offices. The approximately 40 year old, 550-gallon UST was located in the central portion of the property, adjacent to the northeast corner of the automobile showroom. A site plan depicting these features and the former UST location is presented on Drawing No. 2. 2.2 Regional Geology: Bakersfield is located within the southern San Joaquin Valley Region of the Great Valley (valley) Geomorphic Province of California. Surficial deposits in the Bakersfield area occur as Quaternary Age alluvium derived from the Sierra Nevada which borders the eastern boundary of the valley. Fresno Modesto Visalia Bakersfield KERN COUhTY AIRPORT NO. ! ILIVE DR. NORRIS ROAD CHINA Ave PROJECT KERN :OSEDALE HtGHWAY 'Gulf SI % PROJECT '( R[CREATION CENTER ~lp~d;,i~ I, ,sa,. ~.4" :. ..- ~ ,,~.,,.,- .4II · SITE ,.' J PROJECT LOCATION }~P VALLEY OLDSMOBILE FACILITY 2600 "H" STREET BAKERSFIELD, CALIFORNIA DRAWN APPROVED E~Y: ,, ~ . Laboratories, Inc. O'~'~,WIN G No.. ' ' Ir ~ f"S NO/I,~D~'S TO /VISAL I A./flAKERSFI~ LO ';: -' -' I PROJECT NO. TL 988-099-03 2/4 rh STREET -- I Cir' LOT ~ A.C. PAVEMENT~ FORMER 550 gal. UST .- m BULIDING BUILDING I LEGEND , I __ P OVERHEAD LINES , , FORMER UST IDCATIOI i - - PROPERTY LINE FORMER PIPING 0 FEET 40 FT. ' ' SCALE IN FEET I i BUILDING 23rd STREET II PROJECT SITE PLAN AS SHOWN :[2-17-90~ The Twining VALLEY OLDSblOBILE FACILITY OR~wN flY: APPROVED BY: 2600 "H't STREET BMB .~ Lobomtori.es, Inc. BAKERSFIELD, CALIFORNIA OrA'wiNG No. TL 988-099-03 Page 3 The soil profile at the site consists of poorly graded, silty sands underlain by interbedded sandy silts and gravelly sands to a depth of 26.5 feet below site grade (BSG), the maximum depth explored during Twining's RI study. The foregoing is a general summary of the subsurface conditions encountered in the soil borings drilled for this study. Detailed descriptions of the soil conditions encountered in the borings are presented on the boring logs in Appendix A. The stratification lines shown on the boring logs represent the approximate boundaries between soil types; the actual in-situ transitions may be gradual. 2.3 Regional Hydroloqy: First encountered groundwater in the Bakersfield area occurs predominantly in unconfined (water table) conditions within the unconsolidated alluvium. Depth to groundwater in September 1989 was approximately 165 feet BSG according to information provided by the California Water Service Company of Bakersfield. The regional direction of groundwater flow is northeast. No perched water tables are known to exist beneath the property. Depth to groundwater and shallow groundwater direction of flow, gradient, and velocity .can be affected by groundwater production well pumping, seasonal recharge, and other variables in the vicinity of the property. Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 4 2.4 Project History: A closure plan was submitted to the Kern C'ounty Department of Environmental Health Services (KCDEHS) by Valley Oldsmobile in October 1987 and the UST and piping were removed by McNabb Construction Company on February 9, 1988. At the time of the UST removal, two soil samples were obtained by B.C. Laboratories in Bakersfield, California from beneath the UST at depths of two feet and six feet below the bottom of the UST. The piping extended for a distance of approximately 30 feet west of the UST; two additional soil samples were obtained at depths of two feet and six feet below the bottom of the piping. The soil samples were analyzed by B.C. Laboratories for total lead, oil and grease, and total halogenated hydrocarbons. The analytical results of the soil sample analyses are summarized in Table No. 1. TABLE NO. 1 Analytical Results of Soil Sample Analyses Date Sampled: February 9, 1988 Sample Oil and Grease, Total Lead, TOX, ID Location mg/kg mg/kg mg/g Soil No. 1 2 feet below 15,326 39.8 <20 tank bottom Soil No. 2 6 feet below 92,141 tank bottom Soil No. 3 2 feet below 67,823 pipe bottom 50.4 20 59.0 <20 Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 5 TABLE NO. 1 (continued) Analytical Results of Soil Sample Analyses Date Sampled: February 9, 1988 Sample Oil and Grease, Total Lead, ID Location mg/kg mg/kg Soil No. 4 6 feet below 1,428 11.8 pipe bottom Abbreviations: mg/kg = milligrams per kilogram (parts per million) TOX = Total Halogenated Hydrocarbons < = less than TOX, mg/~ <20 The analytical results of the laboratory analyses revealed detectable levels of oil and grease and lead in the soils below the UST and piping. Based upon the analytical results of the soil sample analyses, the KCDEHS requested that a RI be conducted to assess the vertical and horizontal extent of petroleum product migration in the soils beneath the UST. Twining was retained by Isaacs and Bailey and an RI Work Plan was prepared. The work plan was approved by Mr. Bill Scheide of the KCDEHS by telephone on October 25, 1988. An RI was conducted by Twining in October 1988. 2.5 Summary of Remedial Investiqation: The following subsections provide a brief summary of the Remedial Investigation report, dated March 6, 1990 (TL 988-099-02). Fresno Modesto Visalia Bakersfield TL 988'099-03 Page 6 2.5.1 Field and Laboratory Investigation: To determine the extent of petroleum product migration, four soil borings were drilled in the immediate vicinity of the UST. The soil boring locations are shown on Drawing No. 3. The soil borings were drilled to a maximum depth of 26.5 feet BSG. To access the extent of potential petroleum product migration beneath the automobile showroom located adjacent to the UST, soil boring B-3 was slant drilled at a 30° angle beneath the structure to a vertical depth of approximately 22 feet BSG. Soil samples were collected from each boring at depths of 5, 10, 15, 20 and 25 feet BSG. The soil samples were analyzed for oil and grease (U.S. EPA method 413.1) and total lead. 2.5.2 Results of Soil Samples Analyses: The analytical results of the soil samples obtained from the exploratory soil borings are presented in Tables No. 2 and No. 3. The laboratory documentation is presented in Appendix B. Fresno Modesto Visalia Bakersfield ! ..., TL 988-099-03 --~ SO,I,L BORING LOCATION i SCALE IR FEET C~ LOT ASPt~TIC CONCRETE HORIZONT~ EXTENT OF PETROLE~ t BUILDING PLAN VIEW KNOWN HORIZONTAL EXTENT OP S~c~HOi~ I0~: PETROLEUM PRODUCT bIIG~TION VALLEY OLDSMOBILE FACILITY O~awu flY: aPPmOV[O ~: ~M~ .] Loboralories, Inc. BAKERSFIELD, CALIFORNIA OlqAwiNG TL 988-099-03 Page 7 ADa]ytical Results of ~Cbil Sample Analyses Oil and Grease and Total Lead Date sampled: October 28, 1988 Boring Sample Oil a~d Grease, Total Lead, Number Depth, ft. m~/kq m~/kq B-1 B-2 B-3 B-4 6.0 - 6.5 74,000 NA 11.0 - 11.5 15 NA 16.0 - 16.5 10 NA 21.0 - 21.5 10 NA 6.0 - 6.5 35 3 11.0 - 11.5 10 NA 16.0- 16.5 5 3 21.0 - 21.5 .50 4 26.0 - 26.5 ]ND 4 6.0 - 6.5 13,000 NA 11.0 - 11.5 33,000 NA 16.0 - 16.5 .30 NA 6.0 - 6.5 35 NA 11.0 - 11.5 40 NA 16.0 - 16.5 45 NA M~. - 5 0.5 Abbreviations: mg/kg = milligrams per kilogram (]parts per million) ND = None Detected NA = Not Analyzed MDL = Method Detection Limit Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 8 TARLR ~). 3 Analytical Results of ~3il Sample Analysis Total Metals Date Sailed: October 28, 1988 Soil Boring No. 2 Sample Depth: 11.0-11.5 feet BSG Concentrations, Constituent mq/kq MDL Antimony (Sb) ND 100 Arsenic (As) 2.2 0.5 Barium (Ba) 58 0.5 Beryllium (Be) 0.3 0.1 Cadmium (Cd) ND 1 Ch~,H um (Cr) 6 1 Cobalt (CO) ND 5 Copper (Cu) 13 5 I~ad (Pb) 7 0.5 Mercury (Hg) 0.6 0.1 Moly~n~ (Mo) ND 20 Nickel (Ni) ND 5 Selenium (Se) ND 0.5 Silver (Ag) ND 3 Tballium (T1) 4 1 Vanadium (V) 18 5 Zinc (Zn) 33 2 Abbreviations: BSG = Below Site Grade mg/kg = milligrams per kilogram (parts per million) MDL = Method Detection Limit ND = None Detected at or abow~ MDL NA = Not Analyzed Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 9 2.6 Findings of Supplementa]~ Investigations: The RI report concluded that based on the analytical results of the soil samples analyzed for metals, the affected, soils could contain hazardous concentrations of lead, thereby restricting the method by which the affected soils could be remediated and also restrict the method(s) by which they could be treated and disposed. In light of this condition, the RI report recommended that additional soil sampling and laboratory analyses be conducted to determine the soluble concentration of lead by the waste extraction test (WET) method. Soil samples were obtained by Twining on December 19, 1990 from the approximate location of soil boring B-3 (at the approximate location of the UST) at depths of 2.5 feet and 8.5 feet BSG. The soil samples were analyzed by Zalco Laboratories for Oil and Grease, Soluble Metals (STLC), and for Hazardous Waste Criteria (Ignitability, Reactivity and Corrosivity) Title 22, California Code of Regulations (C.C.R.), Sections 66702, 66705 and 66708. The results of the laboratory analyses of the soil samples are presented in Table No. 4 and the laboratory documentation is presented in Appendix B. Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 10 TARrR NO. 4 Analytical Results of Soil Sample Ar~!~es Oil and Grease and Soluble F~tals Date Sampled: Deosmber 19, 1990 Soil Boring No. 3 Sample Depth: 2.0-2.5 feet BSG Constituent Soluble Concentrations, mq/1 Antimony (Sb) Arsenic (As) Barium (Ba) Beryllium (Be) Cadmium (Cd) Chru~um (Cr) Cobalt (co) copper ( Cu ) I~ad (Pb) Mercury (Hg) Nolybdenum (Mo) Nickel (Ni) Selenium (Se) Silver (A~) Thallium (Ti) Vanadium (V) Zinc (Zn) < 0.2 0.15 13 < 0.01 0.033 <0.1 0.14 8.6 75.0 < 0. 002 <0.1 0.22 < 0. 005 < 0.02 < 0.2 0.67 11 0.2 0.005 0.1 0.01 0.01 0.1 0.1 0.05 0.05 0.002 0.1 0.05 0. 005 0.02 0.2 0.1 0.05 Oil and Grease 66,300 (mg/kg) 50 Reactivity (Free Sulfide, m~/kg H2S) Reactivity (Fr~e Cyanide, m~/kg HCN) corrosivity (pH) Ignitability (to 200°F, P~2C) < 10 < 1.0 8.2 10 1.0 <2 or >12 20 Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 11 TART,R. NO. 4 ((.:ontinued) A~m] ytical Results of Soil Sample A~a] yses Oil and Grease and Soluble Metals Date Sampled: December 18, 1990 Soil Boring No. 3 Sample Depth: 8.0-8.5 feet, BSG Concentration, Constituent mg/kq MRL Oil and Grease 5,850 50 Abbreviations: BSG = Below Site Grade WET = Waste Extraction Test: pH 5.0 Solution, 0.2 M Citrate Buffer Deionized water for Chromium (VI) MRL = Minimum Reporting Level mg/1 = milligrams per liter (parts per million) mg/kg = milligrams per kilogram (parts per million) H2S = Hydrogen Sulfide HCN = Hydrogen Cyanide PMCC = Pensky-Martens Closed Cup Tester As shown in Table No. 4, the results of the additional laboratory analyses revealed that the soil sample obtained at a depth of 2.5 feet BSG in the immediate vicinity of the UST contained a soluble lead concentration of 75 mg/1. To confirm the results of the December 19, 1990 sampling event, Twining returned to the property on January 14, 1991 and obtained an additional soil sample from the approximate location of Soil Boring No. 3 at a depth of 2.5 to 3.0 feet BSG. The soil sample was analyzed for soluble lead by Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 12 Twining's analytical chemistry laboratory located in Fresno. The result of the laboratory analysis .of the soil sample is presented in Table No. 5 and the laboratory documentation is presented in Appendix B. ~l~clcal Results of Soil Sable ;~na]~is I~_ad E~t~ Fx~l~: January 14, 1991 Soil Boring No. 3 Sample Depth: 2.5-3.0 feet BSG Soluble Concentrations, Constituent mq/1 MRL I~ad (Pb) 30 0.4 Abbreviations: BSG = Below Site Grade WET = Waste Extraction Test: pH 5.0 Solution, 0.2 M Citrate Buffer MRL = Minimum Reporting Level mg/1 = milligrams per liter (parts per million) 2.7 Extent of Petroleum Product Miqration: The~ analytical results of the soil sample analyses were evaluated to determine the extent of the petroleum product migration. Based on those findings it was estimated that the horizontal extent of oil and grease migration and possibly lead is in an area centered on the UST location with a radius of approximately six feet, assuming that the Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 13 product migration has followed a symmetrical pattern. It was also determined that soils with elevated concentrations of oil and grease and possibly lead extend vertically to a depth of approximately 11.5 BSG. The known extent of the soils containing elevated concentrations of oil and grease and lead are illustrated on Drawings No. 3 and No. 4. 2.8 Requlatory Considerations: The laboratory analyses conducted on the soil samples for the RI and for the December 1990 and January 1991 sampling events indicate that soils in the vicinity of the UST contain concentrations of oil and grease constituents ranging from nondetectable (ND) to 74,000 mg/kg. In addition, the soils contain concentrations of total lead ranging from 3 to 590 mg/kg, and soluble lead ranging from 30 to 75 mg/1. Currently no regulatory guidelines have been established by the U.S. Environmental Protection Agency (U..S. EPA), the California Regional Water Quality Control Board (RWQCB), or the KCDEHS for allowable levels of oil and grease that may be left in place within the vadose zone. California regulations for ]hazardous waste criteria, 22 Cal. Adm. Code 66699, states that a waste is hazardous if the soluble concentration for lead and lead compounds exceeds a concentration of 5.0 mg/1. Based on the analytical results of the soil sample analyses, all or a portion of the affected soils are considered hazardous and require remediation. Fresno Modesto Visalia Bakersfield P~O~CT No. TL 988-099-03 [OIL & GREASE CONCENTRATION, ppm] (TOTAL LEAD CONCENTRATION, ppm) ND = NON DETECTABLE OF PETROLEUM MIGRATION ZONE j FORMER USTLOCATION B-2 B-3 B-1 BUILDING m! [35] [74,000] [40] 10FT [~5] [~o] 15FT" 20FT . (4) EASTERLY CROSS SECTIO~ VIEW KNOWN VERTICAL EXTENT OF PETROLEUbl PRODUCT MIGRATION VALLEY OLDSMOBILE FACILITY BAKERSFIELD, CALIFORNIA 25FT 0 F~ET t0 F~T. HORIZONTAL ~ AS SHOWN [ 12-17-90 TheTwining IDRAWNBY: IAPPROVED BY: I B~ . Laboratori.es, Inc. TL 988-099-03 Page 14 2.9 Potential Environmental Effects: The soils containing elevated concentrations of oil and grease and lead are separated from groundwater by approximately 150 feet. The average annual rainfall in the Bakersfield area is approximately six inches. No perched groundwater conditions were encountered during the RI to a depth of 26.5 feet BSG, the maximum depth explored. The ground surface in the vicinity of the UST has been paved with asphaltic concrete during the time period that the UST was maintained on the property, thereby decreasing the potential for migration which could be promoted by percolation of surface waters through the vadose zone. In addition, oil and grease constituents and lead compounds do not readily migrate in soil; thus, the potential for petroleum products to leach through the vadose zone and impact the groundwater beneath the property appears to be low. The analytical results of the soil sample analyses indicate that the affected soils at the site contain hazardous concentrations of lead. Because the site is located in a populated area and will probably be redeveloped for commercial use, the potential exists for the affected soils to present a health risk to individuals. This potential health risk is particularly high for workers and others who may become exposed to the soils during demolition and new construction activities. It should also be noted that the existing contaminated soils, if left in place, may pose a Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 15 liability to the site, i.e. marketability and market value. In additions, the contaminated soils, if not removed, could result in restrictions on future uses of the property. In light of the regulatory requirements, the potential environmental effects, and the potential economical effects on the property; Isaacs and Bailey has chosen to remediate the soils containing concentrations of oil and grease and lead to acceptable regulatory levels. 3.0 REMEDIAL ACTION PARAMETERS This section summarizes the site features, the estimated extent and volume of the soils requiring mitigation, and the feasibility of selected remedial action alternatJ.ves that could be used at the site. 3.1 Site Features: during the investigation. O O The following conditions were observed A portion of the soils requiring remediation may exist within the city c.f Bakersfield right-of-way which is defined as a distance of 12.5 feet outwardly from the cente~uline of the alley located east of the UST location. A 6-inch diameter city sewer line and a California Water Service Company distribution line are located beneath the centerline of the alley. Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 16 Oil and grease is believed to have migrated beneath the northeast corner of the showroom building located west of the alley and south of the UST location. 3.2 Extent of Soils Requirinq Remediation: The approximate horizontal extent of soils requiring remediation appears to be located within a 6-foot radius centered on the location of soil boring B-3. It should also be noted that the soils requiring remediation may extend laterally for a distance of approximately two to three feet beneath the showroom building. The vertical extent of the soils requiring remediation is believed to be limited to a depth of about 11.5 feet BSG. The extent of the soils requiring remediation at the property is illustrated on Drawings No. 5 and No. 6. Based on the estimated horizontal and vertical extent of affected soils in the vicinity of the UST, it is estimated that approximately 50 cubic yards of soil (75 tons) will require remediation. The extent of the soils containing oil and grease beneath the piping of the UST has not been determined, however it may be assumed, based on the laboratory results of the soil samples obtained at the time of the piping removal, that an additional 20 to 30 cubic yards of soil may also require remediation. Thus, the estimated volume of soil requiring remediation could be about 80 cubic yards (120 tons). Fresno Modesto Visalia Bakersfield PLAN VILW IPROJ£CT No. TL 988-099-03 A X × × X .X X X m! BUILDING LEGEND ~p~w~_~ PIPING LOCATION FENCE FORMER UST LOCATION ESTIb~TED HORIZONTAL EXTENT OF SOILS REQUIRING REMEDIATION 0 FEET 10 FT. ~ SCALE IN FEET ESTIbIATED HORIZONTAL EXTENT 1SCAL£: , 1, AS SHOl~qq OF SOILS REQUIRING REMEDIATIOJ. VALLEY OLDSMOBILE FACILITY / BAKERSFIELD, CALIFORNIA / DATE: 12-17-90 APPROVED BblB ORAW,ING NO. j".~~ The Twining · Laboratori.es., Inc. P~OJEC T TL 988-099-03 EhSTERLY CROSS SECTIONA~L VIEW A I I I i__] i I i ,- .i 5 FT. BUILDING 15 FT. FORMER UST LOCATION ESTIb~TED VERTICAL EXTENT OF SOILS REQUIRING REMEDIATIO~ 20 FT. 25 FT. 0 F~ET 10~FT. HORIZONTAL SC. ALE IN FEET , A! ESTIMATED VERTICAL EXTENT )F SOILS REQUIRING REMEDIATII VALLEY OLDSMOBILE FACILITY BAKERSFIELD, CALIFORNIA SCALE: xt AS Stt0WN DRAWN flY: ~2-~7-9o The Twining AFPROV[D Fly: ~ .. Laboratori.es, inc. TL 988-099-03 Page 17 3.3 Remedial Action Alternatives: An evaluation of various remedial action alternatives was conducted to determine a technically feasible, environmentally appropriate, and cost effective' alternative based on the site specific conditions. Information summarizing the potential remedial action alternatives is presented in the following subsections. The estimated costs presented herein are based on available bid tabulations, industry estimating manuals, and other available information. The cost. estimates presented are preliminary only and the actual costs to remediate the site may vary substantially. If the accuracy level is not appropriate for the purpose intended it is recommended that a formal bidding process be conducted prior to selecting a remedial action method. The remedial action alternatives are: o No-action; o Bioremediation; and o Excavation and Disposal. 3.3.1 No-action: The no-action remedial action alternative would involve leaving in-place up to 80 cubic yards of soils containing elevated concentrations of oil and grease constituents and hazardous concentrations of lead. The no-action alternative would be the least costly method of those evaluated, however, considering the previously discussed regulatory, marketing, and environmental concerns, the potential risks to the public Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 18 health, and the potential impacts to the subject property, the no- action alternative is not considered feasible for this site. 3.3.2 Bioremediation: The bioremediation remedial action alternative would involve excavating the affected soils and introducing naturally occurring and laboratory-mutated microorganisms into the soil which destroy organic wastes by secreting naturally occurring enzymes that break the chemical bond of organic compounds and absorb the matter within their cell membranes. Bioremediation could be a feasible alternative to remediate the oil and grease constituents which exist in the soils. However, because some or all of the soils contain relatively high concentrations of lead, and because lead compounds are toxic to the microorganism cultures used in the process, bioremediation methods could be utilized to remediate only a portion of the soils at the site. The estimated cost to bioremediate the soils at the site containing oil and grease constituents is approximatelY $190 per ton. Assuming a quantity of 120 tons to be remediated, the estimated cost to remediate this portion of the soils would be approximately $22,800. To effectively remediate the soils using bioremediation methods the soils would have to be excavated and stockpiled on the property Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 19 while the remedial process is being conducted and the soils containing concentrations of lead which could not be mitigated using bioremediation methods would require disposal at an off-site facility. Prior to commencing bioremedial operations, a feasibility and treatability study would be necessary to adequately characterize the waste and to determine which microorganism cultures would be best suited for treatment. In light of the relatively small quantity of soil requiring remediation, the concentrations of lead, the relatively high unit cost per ton of soil treated, and finally because 'the method could not be utilized to treat the entire quantity of soils requiring remediation, bioremediation is not considered a cost effective and technically feasible alternative to remediate the soils at the site. 3.3.3 Excavation and Disposal: The excavation and disposal remedial action alternative involves removing the soils containing concentrations of oil and grease and lead and transporting the soil to an approved Waste Management Unit (WMU) for treatment and disposal. Because it has been determined that all or a portion of the affected soils contain high concentrations of lead and are hazardous, the selection of a suitable WMU is limited. Soils containing hazardous concentrations of lead can be accepted at the Chemical Waste Management, Inc. (C~() disposal facility located near Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 20 Kettleman City, California. Advantages of the excavation and disposal alternative include mitigating any potential threats to the public health and the environment that may exist as a result of the existing hazardous conditions at the site. In addition, by removing the affected soils from the site, clean closure can usually be obtained, thereby reducing the potential for future economic impact to the property concerning marketability and future development. A cost estimate to remediate soils containing oil and grease, and lead at the site by excavation and disposal methods was prepared. The cost estimate was based on bids obtained from contractors to excavate and transport 120 tons of soil to CWM for disposal. The cost estimate is presented in Table No. 6. It should be noted that the cost estimate is based on an assumption that 120 tons of soil will require remediation. The quantity of soil is an approximation only and the actual quantity will not be known until the soils are excavated and characterized. Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 21 TABLE NO. 6 Estimated Cost For Excavation and Disposal Remedial Action Alternative PHASE OF WORK Permits (estimated) Laboratory Analyses for Confirmation (estimated) Excavation and Backfilling (120 tons) Transportation of Soil to CWM (5 loads) Waste Treatment and Disposal of Soil to CWM (120 tons) Kings County Waste Generator Taxes (120 tons) Project Management Costs UNIT COST EXTENDED $ 2100. O0 $ 200.00 $ 2,000.00 $ 2,000.00 $ 45.00/ton $ 5,400.00 $ 402.00/load $ 2,010.00 $ 113.00/ton $ 13,560.00 $ 23.00/ton $ 2,760.00 $ 1,000.00 $ 1,000.00 Estimated Total : $ 26,930.00 The excavation and disposal alternative appears to be the most environmentally when compared alternatives. appropriate and technically feasible alternative to the other previously discussed remedial Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 22 4.0 PROPOSED REMEDIAL ACTION ALTERNATIVE Based upon the site specific conditions and the criteria presented for each remedial alternative in the preceding section, Twining recommends that the excavation and disposal method be used to remediate the soils containing concentrations of oil and grease and lead at the site. The remedial action plan for the excavation and disposal alternative is summarized in the following subsections. 4.1 Proposed Clean-up Levels: Because no regulatory limits have been established for acceptable concentrations of oil and grease constituents that may be left in place within the vadose zone, Twining proposes that a concentration of 50 mg/kg for oil and grease be used as the target clean up level for the site. In addition, soils with lead exceeding a total concentration of 1,000 mg/kg and a soluble concentration of 5 mg/1 will be removed. 4.2 Excavation: Following approval of this remedial action work plan by the KCDEHS, Isaacs and Bailey will contract with a licensed contractor to perform the work in accordance with this plan. Prior to beginning the work, an excavation permit will be obtained from the city of Bakersfield Department of Public Works. In addition, because it is anticipated that the excavation will exceed five feet in depth, an excavation and trenching permit should be obtained from Cal OSHA, also Underground Service Alert (U.S.A.) will be notified at least 48 hours prior to beginning excavation to Fresno Modeslo Visalia Bakersfield TL 988-099-03 Page 23 verify the depths and locations of the underground utilities located in the vicinity of the proposed excavation. It will be the contractor's responsibility to obtain the necessary permits and to notify U.S.A. prior to beginning work. After addressing the above requirements, the selected contractor will excavate the soils at the site using a backhoe. Care should be taken while excavating beneath the showroom building to avoid damage to the structure.. It may be necessary to shore beneath the building during the excavation activity to prevent collapse and ensure worker safety. The excavated soils will be transported to CWM. Upon completion of the excavation operations, the excavation will be backfilled as engineered fill with imported clean soil. The backfilling operation will be monitored by Twining and in-place density tests will be conducted as per Uniform Building Code and city of Bakersfield Public Works Department requirements. Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 24 4.3 Confirmation Sampling: Upon completion of the excavation phase and prior to backfilling the excavation, confirmation soil samples will be taken from the each sidewall and from the bottom of the excavation. obtained from the bottom of the approximately 15 foot intervals.~ Soil samples will also be excavated piping area at The soil samples will be transported to Twining's analytical chemistry laboratory in Fresno and analyzed for oil and grease and total lead. 4.4 Transportation and Disposal to WMU: The excavated soil will be transported by a licensed 'hazardous materials hauler to CWM. Prior to transporting the soil, the load will be manifested as hazardous waste and a Generator USEPA ID number will be assigned by the EPA. In addition, all waste profile documentation and credit applications for disposal fees will be completed and approved by CWM prior to transporting the soil. 4.5 Closure: After completion of the work and the results of the laboratory analyses of the confirmation soil samples are available, a report documenting the work and the results of the laboratory analyses of the soils samples demonstrating that the approved cleanup levels have been achieved will be prepared and submitted to the KCDEHS with a request for clean site closure. Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 25 5.0 ~THAND SAFETY PLAN A health and safety plan which addresses the safety provisions that will be employed during the remedial work is summarized in the following subsections. 5.1 Introduction: The objective of the plan is to describe the procedures and actions necessary to protect the on-site -personnel and other individuals from direct dermal contact, inhalation, and ingestion of potentially hazardous materials that may be encountered during the remedial operations. 5.2 Project Safety Authority: It is anticipated that the project safety officer will be Mr. Noah Beeber of Kern Environmental Services. Mr. Beeber will be the on-site supervisor and will be responsible for the enforcement of the provision of this health and safety plan. 5.3 Job Hazard Analysis: The following subsections describe the chemical and physical hazards that may be encountered during the remedial work. 5.3.1 Chemical Hazards: The possible contaminants that may be encountered on the project are Volatile Organic Compounds (VOCs) and hazardous concentrations of Lead. There is currently no known air concentration data available for VOC emissions in the direct breathing zone for personnel working around the exposed soils. Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 26 Inhalation and dermal (absorption) hazards are the major area of concern regarding exposure to VOCs. Results of toxicological studies on animal exposure to pure concentrations of VOCs that may be encountered at the site are detailed in "Handbook of Toxic and Hazardous' Chemicals", by M. Sittig (1981), and "Dangerous Properties of Industrial Materials", by N. Irving Sax (1989). An additional reference source used for the development of this Health and Safety Plan is the "Documentation of the Threshold Limit Values (TLV)", published by the American Conference of Governmental Industrial Hygienists (ACGIH), Inc. Benzene: Benzene is a common constituent of gasoline and other petroleum product materials. It is a clear, colorless liquid, with a flash point of 12°F. The current listed TLV for Benzene is 10 ppm in air, however, the ACGIH has recommended a TLV of 1 ppm be adapted. Toluene: Toluene is a flan~able, colorless, liquid with a benzol-like odor. The flash point for Toluene is 40°F. The currently established TLV for Toluene is 100 ppm in air. Xylene: Xylene is a clear liquid with a flash point of 100°F. The current TLV for Xylene is 100 ppm in air. Xylene is currently being evaluated as a possible carcinogen. Lead (inorganic): Inorganic Lead is a bluish-grey, soft metal. Inorganic lead presents its greatest health risk when found in the Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 27 form of lead fumes. Lead fumes are usually generated by decomposition at high temperatures. Inorganic lead is classified as a Poison "B" by the U.S. Department of Transportation (D.O.T.). The vapor pressure of inorganic lead is 1 mm at 973°F, this would indicate that lead vapor is not a health risk for this project, however, exposure to dust containing inorganic lead should be considered hazardous. Lead (organic): Organic Lead or Tetraethyl Lead (TEL) is also a health hazard for exposures to airborne vapors and fumes. However, like inorganic lead, 'vapors of TEL generally require accelerated temperature increases to release vapors of significant volume. The vapor pressure for TEL is 1 mm at 38.4°F and the flash point is 200°F. The primary Route of Entry (ROE) for TEL is by skin absorption. Upon exposure to sunlight, TEL decomposes to Triethyl Lead and Tetramethyl Lead. Both of these compounds have similar physical characteristics and ROE as TEL. 5.3.2 Physical Hazards: The primary physical~hazards and conditions that can be anticipated during the project include heavy equipment operations, slope stability during excavation, and possibly confined space entry. In addition, the foundation stability of the building located adjacent to the work area may represent a potential physical hazard during the excavation phase of Fresno Modesto Visalia Bakerslield TL 988-099-03 Page 28 the remedial work. Care should be taken to ensure that personnel in the work area remain out of the swing radius area of the backhoe or excavator. Hearing protection should be worn by all personnel in the vicinity of operating equipment. The sides of the excavation should be cut to be no steeper than 1 to 1, horizontal to vertical, if the excavation exceeds 5 feet in depth. Personnel should avoid entering the excavation if possible. In the event that it is necessary to enter the excavation for any reason, Confined Space Entry rules and procedures must be followed. While excavating the soils from beneath the building the soil and foundation stability should be monitored to ensure worker safety and to avoid damage to the structure. If it is determined that unstable soil and foundation conditions exist then the building should be adequately shored to prevent collapse. 5.4 Risk Assessment Summary: It is not anticipated that there will be any significant exposures of VOCs and lead to other individuals, the environment, or to the public in the Vicinity of the project site, therefore, the potential for risk of exposure, to others is considered minimal. However, the potential may exist for exposure to others of airborne dust and soil that may contain levels of VOCs and lead during the excavation and stockpiling phases of work. To minimize the potential of airborne contaminants it is Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 29 recommended that dust control procedures be utilized if deemed necessary by the project safety officer. 5.5 Personal Protective Equipment: It is important that adequate personal protective equipment and clothing be worn by personnel working in the immediate work area. All field personnel and visitors to the project site during work operations will be required to wear: O O O Hard Hats; Safety Glasses; and Long Sleeved Shirts. In addition to the above requirements it will be necessary for workers on the site, that may be exposed to the potential contaminants previously identified, to be provided with and wear Level "C" protective clothing and respiratory devices if deemed necessary by the project safety officer. Level "C" protection will include: O O O O O Saranex Tyvec Suits; Nitrile Outer Gloves; Latex or Vinyl Inner Gloves; Rubber Boots; and Half-face or Full-face Respirators Equipped with Organic Vapor and Dust Pre-Filter Cartridges. Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 30 Personal protection clothing and equipment shall be worn by all personnel who enter the designated work area. The sleeves of the coveralls will be worn outside of the glove gauntlets to facilitate removal of the clothing and to minimize the potential for dermal contact of hazardous materials. If at any time during the work operations, the protective clothing becomes torn, wet, or excessively soiled, it shall be replaced. 5.6 Work Zone and Security: Prior to commencing work, the work area will be designated by safety tape, barriers, or other acceptable means by which unauthorized personnel can be prevented from entering the work area. During the work process unauthorized personnel will not be permitted to enter into the designated work area. In the event that unauthorized individual(s) enter into the designated area then work will be immediately discontinued until such time as the unauthorized individual(s) is removed from the designated area. 5.7 Decontamination Protocol: Decontamination procedures are essential to prevent transporting potentially hazardous materials from the site and to protect the health and safety of the personnel involved in the remedial work. At the end of the shift or workday, the following steps will be taken to allow for the safe removal and disposal of the protective clothing and equipment used during the day. Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 31 o Respirators will be washed with warm water and soap, allowed to air dry, and placed in a sealed plastic bag. Prior to next use, the organic vapor cartridges will be replaced. Rubber boots and gloves will be washed with warm water and soap, then rinsed prior to removal. Boots and coveralls will be removed and, if contaminated, placed into a drum designated for proper disposal. Gloves will be removed and hands will be washed with warm water and soap. 5.8 General Safe Work Practices and Sanitation Requirements: Eating, drinking, or smoking will not be allowed within the designated work area. Contact lenses should not be worn by personnel within the designated work area. 5.9 Emergency Procedures: Symptoms of direct exposure to significant concentrations of VOCs include: irritation of the eyes, nose and skin; vomiting; headache, dizziness and light-headedness; lack of coordination; nausea and unconsciousness. If any of the above symptoms develop, the following first aid procedures should be taken: O o O Skin: Remove contaminated clothing immediately. Flush affected area with water, then wash with warm water and soap. Eyes: Hold the eyelid open and flush with water. Lunqs: Move to fresh air immediately; give artificial respiration and CPR if necessary. Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 32 For emergencies requiring fire, police, or ambulance response, a list of emergency telephone ntunbers and contacts is presented below. A map showing the location of the direct route to the nearest hospital providing emergency care is presented on Drawing No. 7. Hospital: Police: Fire: Poison: Toxic Spills: EMERGENCY CONTACTS San Joaquin Community Hospital 2615 Eye Street (805) 395-3000 Bakersfield Police Department 911 Bakersfield Fire Department 911 Poison Control Center 1-(209) 445-1222 National Response Center 1-(800) 424-8802 6.0 LIMITATIONS The opinions and recommendations presented in this report are based on the assumption that the soil and groundwater conditions and the chemical concentrations do not deviate from those disclosed in our published literature study, subsurface exploration and laboratory testing. If variations from our findings or undesirable conditions are found, The Twining Laboratories, Inc. should be notified so that supplemental conclusions and recommendations can be Fresno Modesto Visalia Bakersfield Ii KERN COUNTY [: AIRPORT I~O. I LIvE DR. NORRIS ROAD CHINA P i;:O Jt.J C; 988-099-03 KERN :'1 ~drnofe ~9 IOSEDALE HIGHWAY SAN JOAQUIN COFD4UNI~ HOSPITAL 2615 EYE STREET (805) 395-3000 % ,,' [ ! LCCATION AND ROUTE TO SAN JOAQUIN COMMUNI~ HOSPITAL TL 988-099-03 Page 33 given. This report is provided with the understanding that it is the responsibility of the client to transmit the information and recommendations of this report to the appropriate regulatory agencies, as required so that approval of this work plan can be obtained prior to scheduling work. The conclusions and recommendations contained in this report are solely professional opinions derived in accordance with current standards of professional practice. The professional staff of The Twining Laboratories, Inc. strive to perform their services in a proper and professional manner with reasonable care and competence but are not infallible. We understand that there are risks of earth movement and property damage inherent in remedial actions of soil and groundwater contamination. We are unable to eliminate all risks; therefore, we are unable to guarantee or warrant the results of our work. During the execution of this remedial action plan Twining will not be responsible for the manifestation of hazardous materials, or the transportation and disposal of any such materials. Twining indemnifies themselves against ally and all liabilities that may result from the execution of this remedial action plan. The standard of care is time-dependent. The report of this project is in accordance with the duty of care of environmental Fresno Modesto Visalia Bakersfield TL 988-099-03 Page 34 consultants in 1991. This work was performed for the sole use of our client. Others who seek to rely on the recommendations contained in this report have a duty to determine the adequacy of the recommendations for their time, location, and intended use. 7.0 CLOSING Twining appreciates the opportunity to be of service to Isaacs and Bailey on this project. If you should have any questions regarding the information contained herein, to contact our office. Sincerely, please do not hesitate THE TWINING LABORATORIES, INC. Bruce M. Blythe,/REA No. 02473 Project Geologist Environmental Engineering Division/Bakersfi Office Harry D. Moore, RCE, RGE ~ Vice-President/General Manager BMB:HDM:km 2c: herewith B Fresno Modeslo Visalia Bakersfield