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4050 GOSFORD ROAD (34)
I /.Delta Environmental Consultants, Inc. Solving environment - related business problems worldwide 175 Bernal Road • Suite 200 San Jose, California 95119 USA 800.477.7411 Fax 408.225.8506 July 31, 2006 Project No. PA4050G -1 Mr. Howard Wines III Environmental Services City of Bakersfield Fire Department 1715 Chester Avenue, 3`d Floor Bakersfield, California 93706 -2020 Re: SECOND QUARTER 2006 UPDATE Texaco Service Station 4050 Gosford Road Bakersfield, California Dear Mr. Wines: www.deltaenv.com On behalf of Equilon Enterprises LLC dba Shell Oil Products (SHELL), Delta Environmental Consultants, Inc. DELTA) has prepared this Second Quarter 2006 Groundwater Monitoring Report for the above ref- erenced site. This quarterly report represents DELTA's professional opinions based upon the currently available information and are arrived at in accordance with currently acceptable professional standards. This report is based upon a specific scope of work requested by the client. The Contract between DELTA and its client outlines the scope of work, and only those tasks specifically authorized by that contract or outlined in this report were performed. This report is intended only for the use of DELTA's Client and anyone else specifically listed on this report. DELTA will not and cannot be liable for unauthorized reliance by any other third party. Other than as contained in this paragraph; DELTA makes no express or implied warranty as to the contents of this report. If you have any questions regarding this site, please contact Joe Rounds A) at (916) 503 -1261 or Mr. Jeff Whitworth (SHELL) at (415) 924 -6298. Gc VIAL FOISincerely, J Delta Environm tal Consultants, Inc. k:. LEE DOOLEY P.O.0183', O— CERTIFIED • IiYDROGEOLOGISToeRoundsk, Lee Dooley, CHG Q• Project Engineer Senior I- lydrogeologist Attachment: Second Quarter 2006 Updaie cc: Mr. Jeff Whitworth, Shell Oii Product. US A memberof.' Xinogeif Environmental Alliance July 31, 2006 SHELL QUARTERLY STATUS REPORT Station Address: DELTA Project No.: SHELL Environmental Engin. / Phone No.: DELTA Site Manager / Phone No.: Pi imary Agency /Regulatory ID No.: Other Agencies to Receive Copies: 4050 Gosford Road, Bakersfield, California PA405OG -1 Jeff Whitworth / (4l 5) 924 -6298 Joe Rounds / (408) 826 -1874 City of Bakersfield / Howard Wines III None WORK PERFORMED THIS QUARTER (SECOND - 2006): 1. Submitted FIRST Quarter 2006 Update Report 2. Continue quarterly soil vapor sampling for Monitoring and Natural Attenuation. WORK PROPOSED FOR NEXT QUARTER (THIRD - 2006): 1. Submit quarterly update report 2. Perform quarterly soil vapor sampling for Monitoring and Natural Attenuation. Current Phase of Project: Remediation (Monitoring and Natural Attenuation) Frequency of Sampling: NA Frequency of Monitoring: Quarterly (soil vapor) Is Separate Phase Hydrocarbon Present On -site (Well #'s): Yes ® No Cumulative, SPH Recovered to Date: NA SPH Recovered This Quarter: None Sensitive Receptor(s) and Respective NA Direction(s): Current Remediation Techniques: Monitoring and Natural Attenuation Soil Vapor Extraction wells are currently installed on -site. Permits for Discharge: None Approximate Depth to Groundwater: NA Groundwater Gradient NA Current Agency Correspondence: City of Bakersfield Fire Department letter dated 10/8/04 (last correspondence) Summary of Unusual Activity: None; All soil vapor parameters stable or declining Joe Rounds Site Manager (DELTA) S ,y ATTACHED: Table 1 — Vapor Extraction Wells Soil Analytical Data Table 2 — SVE Well Data Table 3 — MNA Observation Data Table 4 — Soil Vapor Sampling Analytical Data (Hydrocarbons and Fuel Oxygenates) Table 5 — Soil Vapor Sampling Analytical Data (Fixed Gases) Figure 1 — Site Location Map Figure 2 — Site Map Appendix A — MNA Field Data Sheets Appendix B — Soil Vapor Sampling Laboratory Report and Chain -of- Custody Documents TABLES Table 1 Vapor Extraction Wells Soil Analytical Data Texaco Service Station 4050 Gosford Road Bakersfield, CA Sample Boring Sample Depth Feet) Feet) TPH -d TPH -g mg/ Ethyl Total Benzene Toluene Benzene Xylenes MTBE TBA DIPE ETBE TAME ig/kg.) gI k / g t ) W. g.../..kg) (i..g.../. k.g...) g.., Ip I INui . m....... ...b.. ..,., .e ..r . ir. Date r.. Ill" . ill' .. . . m...................g.... f . ./ VIIkIVIIIIgIIIr , .I) .,,... .............. .. ........ kIg) fl p I 11 WHINlIhlI a ... 11... r...1. pNI .............._ , L.............„ N(IN ILICf I/IIIIkIIIIIIgII,...) . . . I r. . ,,. ,Ir , .,, . , NfNgIIW) II . a(ILµ..,,..... g........./.... a .. .I i.(...".......... j........k..,. . ,) ....... .. ...... i,..............,, II1( .. f, ............ r . 1?}}0..........(...,.,,,Lr.1l,.gII IraklLl - .N:.:gfu. , illL) ,,. g..,, , LL/,1. k,. a... : r IfINqi') Nm iI r,..... k. ... .g. r( liI l, Il ,rr..,..... , : VEW -1 09/22/03 5 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 ND <5.0 ND <50 ND <10 ND <10 ND <10 09/25/03 10 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 6.0 ND <50 ND <10 ND <10 ND <10 09/25/03 15 ND <5.0 1.0 ND <130 ND <130 ND <130 ND<260 2,500 ND <1300 ND<250 ND<250 ND<250 09/25/03 20 ND <5.0 1.5 ND <130 ND <130 ND <130 ND <260 3,500 ND <1300 ND<250 ND<250 ND <250 09/25/03 25 ND <5.0 3.6 ND <130 ND <130 ND <130 ND <260 11,000 8,400 ND <250 ND<250 ND<250 09/25/03 30 ND <5.0 1.1 ND <130 ND <130 ND <130 ND<260 2,800 ND <1300 ND<250 ND <250 ND<250 09/25/03 35 ND <5.0 1.0 ND <130 ND <130 ND <130 ND<260 2,100 ND <1300 ND<250 ND<250 ND <250 09/25/03 40 ND <5.0 1.0 ND <130 ND <130 ND <130 ND <260 4,800 ND <1300 ND <250 ND<250 ND <250 09/25/03 45 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 250 480 ND <10 ND <10 ND <10 09/25/03 50 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 87 ND <50 ND <10 ND <10 ND <10 09/25/03 55 ND <5.0 ND <0.50 ND <5.0 ND <5.0 D <. 5.0 ND <.10 D <5.0N. 2 10 ND <10 ND <10 N: J D 1 0 r .l ilIlIlI I I I.,,: N I;l,011111 I11 ta N... . I. ININII<I,I, ., ...._ VEW -2 09/22/03 5 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 63 560 ND <10 ND <10 ND <10 09/24/03 10 ND <5.0 4.3 ND <5.0 ND <5.0 ND <5.0 ND <10 18,000 4,500 ND <10 ND <10 ND <10 09/24/03 15 ND <5.0 6.0 ND <130 ND <130 ND <130 ND<260 12,000 2,200 ND<250 ND <250 ND <250 09/24/03 20 ND <5.0 1.6 ND <5.0 ND <5.0 ND <5.0 ND <10 6,500 3,500 ND <10 ND <10 ND <10 09/24/03 25 ND <5.0 7.6 ND <130 ND <130 ND <130 ND <260 44,000 4,800 ND <250 ND<250 ND<250 09/24/03 30 ND <5.0 0.62 ND <5.0 ND <5.0 ND <5.0 ND <10 1,800 1,200 ND <10 ND <10 ND <10 09/24/03 35 ND <5.0 0.66 ND <5.0 ND <5.0 ND <5.0 ND <10 1,200 940 ND <10 ND <10 ND <10 09/24/03 40 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 410 570 ND<10 ND <10 ND <10 09/24/03 45 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 330 530 ND <10 ND <10 ND <10 09/24/03 50 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 960 77 ND <10 ND <10 ND <10 09/24/03 55 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 6.2 ND <50 ND <10 ND <10 ND <10 09/24/03 60 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND < r.., ND <5.0 ND <50 ND <10 ND <10 D 0 fr, I f ......,..... r f r rr . .,r.r, . IiIi,r II.II, lllllIl 1,0 II IIIII IIN II rIIII N LI. N: i.i ; II<IIlf1i r NNNI1IIIIIIrIN VEW -3 09/22/03 5 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 ND <5.0 ND <50 ND <10 ND <10 ND <10 09/24/03 10 ND <5.0 1.9 ND <5.0 ND <5.0 ND <5.0 ND <10 6,800 150 ND <10 ND <10 ND <10 09/24/03 15 ND <5.0 5.7 ND <5.0 ND <5.0 ND <5.0 ND <10 19,000 4,100 ND <10 ND <10 ND <10 09/24/03 20 ND <5.0 6.2 ND <5.0 ND <5.0 ND <5.0 ND <10 14,000 4,400 ND <10 ND <10 ND <10 09/24/03 25 ND <5.0 9.6 ND <5.0 ND <5.0 ND <5.0 ND <10 24,000 11,000 ND <10 ND <10 ND <10 09/24/03 30 ND <5.0 1.1 ND <5.0 ND <5.0 ND <5.0 ND <10 2,500 4,200 ND <10 ND <10 ND <10 09/24/03 35 ND <5.0 6.7 ND <5.0 ND <5.0 ND <5.0 ND <10 810 1,800 ND <10 ND <10 ND <10 09/24/03 40 ND <5.0 4.9 ND <5.0 ND <5.0 ND <5.0 ND <10 29,000 2,100 ND <10 ND <10 ND <10 09/24/03 45 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 350 350 ND <10 ND <10 ND <10 09/24/03 50 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 20 ND <50 ND <10 ND <10 ND <10 Table 1 Vapor Extraction Wells Soil Analytical Data Texaco Service Station 1 r 4050 Gosford Road Bakersfield, CA Sample Boring Sample Depth Number Date (Feet) TPH -d mg/kg) TPH -g mg/kg) Ethyl Total Benzene Toluene Benzene Xylenes MTBE TBA DIPE ETBE TAME Vkg) (µg/kg) (pg/kg) (µg/kg) (µg/kg) ("Ag) (gg/kg) (µg/kg) (µg/kg) I rr rr,rf1,.1 1,1 f..r 1 r...,... I ..III II. L..Nm,IIIINN II,N N gIINN llll III11...1I..Iliill ..1.1...1.........., 1 IIII 1III.I N ........IIrIINI I,....,... 1L1., INI IIIIr,.N IIIL WN 1i,,.l Ir ,. .... I III. IIN N ,.,...,..IIII I ............, .......Ir........ ... 11 III 1,111.. , ..,..... I N 7 II .............. ....IAN VEW -4 09/22/03 5 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 ND <5.0 ND <50 ND <10 ND <10 ND <10 09/23/03 10 ND <5.0 1.2 ND <130 ND <130 ND <130 ND<260 3,500 ND <1300 ND <250 ND<250 ND <250 09/23/03 15 ND <5.0 13 ND <130 ND <130 ND <130 ND <260 20,000 2,100 ND<250 ND<250 ND<250 09/23/03 20 ND <5.0 1.5 ND <5.0 ND <5.0 ND <5.0 ND <10 1,400 3,800 ND <10 ND <10 ND <10 09/23/03 25 ND <5.0 7.4 ND <5.0 ND <5.0 ND <5.0 ND <10 3,500 2,100 ND <10 ND <10 ND <10 09/23/03 30 ND <5.0 1.1 ND <5.0 ND <5.0 ND <5.0 ND <10 22,000 2,700 ND <10 ND <10 ND <10 09/23/03 35 ND <5.0 0.80 ND <5.0 ND <5.0 ND <5.0 ND <10 610 1,500 ND <10 ND <10 ND <10 09/23/03 40 ND <5.0 7.4 ND <130 ND <130 ND <130 ND<260 1,600 ND <1300 ND <250 ND <250 ND <250 09/23/03 45 ND <5.0 3.7 ND <130 ND <130 ND <130 ND<260 17,000 ND <1300 ND <250 ND <250 ND<250 09/23/03 50 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 650 120 ND <10 ND <10 ND <10 09/23/03 55 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 16 ND <50 ND <10 ND <10 ND <10 09/23/03 60 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 23 ND <50 ND <10 ND <10 ND <10 09/23/03 65 D < 5..0 D .5., 0 N1,. D 5 In 0 D . 0NNI NlD <10 N. D < r. 1.. NI D i.r....r .. i ,,.....1....,.1 ,1 ...rMIN N... ... .. _ I<_ L0, r Nr,., , .,. , i LI6, I N IIIIIIIII I IIIIIIrI NI . II I .u.., .. . ...... 5..,........0 .... .., . rr ...,.... .. ,r.,....., .. ...v.. .. .......................................„ IIIP tll I ._ N. ..... . , rD l . ... . I<L..., . II . IL_ .:.: IIV __IILIINIIIINININI III III NIII . I. r4 ll,.,.<....I.5I.... . . i . L.. ......I. ..........,................1..: .. .. I II r.r... . .,L..1,...., . ,.,, 1r..... . :. NIIIIIII,II ININIIII I NIIN I (IIII, Ih7 5.....,...,...4 ". . . rlI I N:IdNll IINIIII HN INI rI .. 5.... r,, 0 ..... NII X16 I , r aIN111 GNll IlrN., r . . ll,.. D ..„ .. .., ._ . ^. . Lr r0 II, l_ _I i~IN__MNIIIII IIII Nf Illlttl Ifn 1.-..., .. .0 ... .... . .,.'. rrn ._. .. r. .1 ' NIINNNI. L.,i... ND . I. N< IIII1II0 . IL.,.,.............. . ILll111111... VIEW-5 09/22/03 5 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 140 4,000 ND <10 ND <10 ND <10 09/23/03 10 ND <5.0 6.3 ND <130 ND <130 ND <130 ND <260 2,400 8,500 ND <250 ND<250 ND<250 09/23/03 15 ND <5.0 8.7 ND <130 ND <130 ND <130 ND<260 29,000 21,000 ND <250 ND<250 ND<250 09/23/03 20 ND <5.0 13 ND <130 ND <130 ND <130 ND<260 46,000 15,000 ND <250 ND <250 ND<250 09/23/03 25 ND <5.0 28 ND <130 ND <130 ND <130 ND<260 85,000 29,000 ND<250 ND<250 ND <250 09/23/03 30 ND <5.0 1.5 ND <130 ND <130 ND <130 ND<260 3,100 3,200 ND<250 ND <250 ND <250 09/23/03 35 ND <5.0 1.9 ND <130 ND <130 ND <130 ND<260 5,300 1,800 ND<250 ND <250 ND <250 09/23/03 40 ND <5.0 0.94 ND <5.0 ND <5.0 ND <5.0 ND <10 680 2,400 ND <10 ND <10 ND <10 09/23/03 45 ND <5.0 2.0 ND <130 ND <130 ND <130 ND<260 4,400 4,200 ND <250 ND <250 ND<250 09/23/03 50 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 530 ND <50 ND <10 ND <10 ND <10 09/23/03 55 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 ND <5.0 ND <50 ND <10 ND <10 ND <10 09/23/03 60 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 ND <5.0 ND <50 ND <10 ND <10 ND <10 09/23/03 65 ND <5.0 ND <0.50 ND <5.0 ND <5.0 ND <5.0 ND <10 ND <5.0 ND <50 ND <10 ND <10 ND <10 Notes: AMSL = Above mean sea level Not applicable SVE = Soil Vapor Extraction N/A = Data not available Data prior to September 2003 supplied by WGR Southwest, Inc. Page I of 1 Table 2 SVE Well Data 4050 Gosford Road Bakersfield, California dir.je. : : : I. ............ rVEle6v.::: Dio. tk:::::::: v; ::::::: Mainete . r ... D hMO. .-(ft anve .............Type::::::::::: ........... joeo 0 AM Bolt .. ...................... VEW-I SVE Well 9/25/03 55 5 5-55 2 10 30 VEW- IA) Hollow Stem Auger 2 40 55 VEW- I B) Dual Nested Well VEW-2 SVE Well 9/24/03 60 5 5-60 2 5 30 VEW-2A) Hollow Stem Auger 2 40 60 VEW-213) Dual Nested Well VEW-3 SVE Well 9/24/03 50 5 5-50 2 5 25 VEW-3A) Hollow Stem Auger 2 35 50 VEW-313) Dual Nested Well VEW-4 SVE Well 9/23/03 65 5 5-65 2 10 30 VEW-4A) Hollow Stem Auger 2 40 65 VEWAB) Dual Nested Well VEW-5 SVE Well 9/23/03 65 5 5-65 2 5 30 VEW-5A) Hollow Stem Auger 2 40 65 VEW-513) Dual Nested Well Notes: AMSL = Above mean sea level Not applicable SVE = Soil Vapor Extraction N/A = Data not available Data prior to September 2003 supplied by WGR Southwest, Inc. Page I of 1 TABLE 3 MNA OBSERVATION DATA Shell Service Station 4050 Gosford Road, Bakersfield, CA DATE Maximum PID* ° m VEW -1A PID* m VEW -113 PID* m VEW -2A PID* m VEW -2B PID* m VEW -3A PID* m VEW -3B PID* m VEW4A PID* m VEW4B PID* m VEW -5A PID* m VEW -5B PID* m Average PID* m COMMENTS 4/14/2005 353 5.0 2.0 48 27 353 95 7.0 2.0 121 52 71.2 5/18/2005 NA NA NA NA NA NA NA NA NA NA NA NA PID unavailable. 6/20/2005 647.0 8.0 8.0 298.0 57 421 331 153.50 24.2 647.0 282.0 222.9 7/14/2005 NA NA NA NA NA NA NA NA NA NA NA NA PID unavailable. 8/9/2005 215 10.8 1.5 147 30.5 5.1 8.4 2.1 2.5 215 83.5 50.6 9/28/2005 3863 194 93.9 119 238 3863 782 848 321 2279 1279 1001.7 10/12/2005 249.9 16.6 16.6 16.6 16.6 249.9 116.6 55.4 55.4 55.4 16.6 61.6 10/12/2005 99.9 1 0.0 1 0.0 1 0.0 0.0 1 20.0 1 99.9 20.0 1 0.0 0.0 0.0 1 14.0 Notes as hexane mcfm - measured cubic feet per minute scfm - standard cubic feet per minute ppm - parts per million PID - photo ionization detector TABLE 4 SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES) Shell Service Station 4050 Gosford Road, Bakersfield, CA DA f ::: >;:. PB -G:. ' I..................... F 1 : ::: : ::::::... B G :< :: tl.. I# i Zl N1: Ci l.::. f11 :::::::::::: TBX ::: BEI FZENE:::::: t 1.::::::::::::: T . tAl. YL ES : : X EN UE .. >:::. 1A ::::: M 1312............ fl A .. ... 1 Ply... .. c t~1 ........ A1.... ..... VFW -1A 4/14/2005 ND <3.0 ND ND <0.0005 0.0022 0.002 0.0146 1.1 4.0 ND <0.002 ND <0.002 ND <0.002 ND <0.002 5/18/2005 ND <3.0 ND 0.00071 0.0017 0.00094 0.0038 2.0 7.1 ND <0.002 ND <0.002 ND <0.002 ND <0.002 6/20/2005 ND <3.0 ND 0.00054 0.0011 ND <0.0005 0.00292 1.2 4.5 ND <0.002 ND <0.002 ND <0.002 ND <0.002 7/14/2005 ND <3.0 ND 0.00074 0.0018 ND <0.0005 0.00186 1.2 4.4 ND <0.002 ND <0.002 ND <0.002 ND <0.002 8/9/2005 ND <3.0 ND ND <0.002 0.0054 ND <0.002 ND <0.004 0.7 2.5 ND <0.008 ND <0.008 ND <0.008 ND <0.008 9/28/2005 3.2 13 0.004 0.026 0.015 0.129 0.93 3.3 ND <0.004 ND <0.004 ND<0.004 ND <0.004 10/13/2005 ND <3.0 ND ND <0.0005 0.0021 ND <0.0005 ND <0.0005 0.51 1.5 ND <0.002 ND <0.002 ND <0.002 ND<0.002 2/1/2006 ND <3.0 ND ND <0.00050 0.00084 ND <0.00050 ND <0.0010 0.100 0.37 ND <0.002 ND <0.002 ND <0.002 ND <0.002 5/16/2006 ND <3.0 ND ND <0.00050 0.00230 0.00068 0.0026 0.013 0.047 ND <0.0020 ND <0.0020 ND <0.0020 ND <0.0020 VEW -1B 4/14/2005 ND <3.0 ND ND <0.0005 0.0035 0.0028 0.0181 1.2 4.2 ND <0.002 ND <0.002 ND<0.002 ND <0.002 5/18/2005 ND <3.0 ND ND <0.0005 0.0019 0.00089 0.00329 0.0023 0.0083 ND <0.002 ND <0.002 ND <0.002 ND <0.002 6/20/2005 ND <3.0 ND ND <0.0005 0.001 ND <0.0005 0.00275 0.14 0.52 ND <0.002 ND <0.002 ND <0.002 ND <0.002 7/14/2005 ND <3.0 ND 0.00058 0.0011 ND <0.0005 ND <0.001 0.0053 0.019 ND <0.002 ND <0.002 ND <0.002 ND<0.002 8/9/2005 ND <3.0 ND ND <0.002 0.0034 ND <0.002 ND <0.004 0.17 0.60 ND <0.008 ND <0.008 ND <0.008 ND <0.008 9/28/2005 ND <3.0 ND 0.0019 0.011 0.0049 0.042 0.160 0.59 ND <0.004 ND <0.004 ND <0.004 ND <0.004 10/13/2005 ND <3.0 ND ND <0.0005 0.0024 ND <0.0005 ND <0.001 0.008 0.027 ND <0.002 ND <0.002 ND <0.002 ND <0.002 2/1/2006 ND <3.0 ND 0.00067 0.0024 ND <0.0005 ND <0.001 ND <0.002 ND <0.0072 ND <0.002 ND <0.002 ND <0.002 ND <0.002 5/16/2006 ND <3.0 ND 0.00084 0.0025 0.00056 0.0025 0.0063 0.023 ND <0.0020 ND <0.0020 ND <0.0020 ND <0.0020 VEW -2A 4/14/2005 18 74 ND <0.002 0.0028 0.0029 0.0197 9.7 35 ND <0.008 ND <0.008 ND <0.008 ND <0.008 5/18/2005 20 82 0.0036 0.002 0.0011 0.00309 20 73 ND <0.002 ND <0.002 0.002 0.0022 6/20/2005 150 615 ND <0.005 ND <0.005 ND <0.005 ND <0.005 8.8 32 ND <0.02 ND <0.02 ND <0.02 ND <0.02 7/14/2005 25 102 0.00078 0.0023 ND <0.0005 0.0027 16.0 57 0.012 ND <0.002 0.0065 ND <0.002 8/9/2005 240 984 ND <0.033 ND<0.033 ND <0.033 ND <0.065 4.0 15 ND <0.13 ND <0.13 ND <0.13 ND <0.13 9/28/2005 3.3 14 0.0017 0.010 0.0048 0.040 0.830 3 ND <0.004 ND <0.004 ND <0.004 ND <0.004 10/13/2005 5.3 22 ND <0.001 ND <0.001 ND <0.001 ND <0.002 2.400 8.6 ND <0.04 ND <0.04 ND <0.04 ND <0.04 2/1/2006 ND <3.0 ND ND <0.00050 0.0011 ND <0.00050 ND <0.0010 0.820 3.0 ND <0.002 ND<0.002 ND <0.002 ND <0.002 5/16/2006 ND <3.0 ND ND <0.00050 0.0018 0.00056 0.0018 0.720 2.6 ND <0.0020 ND <0.0020 ND <0.0020 ND <0.0020 VEW -2B T 4/14/2005 4.9 20 ND <0.0005 0.0011 0.00074 0.0052 3.5 13 ND <0.002 ND <0.002 0.0028 ND <0.002 5/18/2005 ND <3.0 ND ND <0.0005 0.0011 0.00075 0.00259 0.011 0.041 ND<0.002 ND <0.002 ND <0.002 ND <0.002 6/20/2005 5.7 23 0.00057 0.0011 ND <0.0005 0.0032 7.9 29 0.0067 ND <0.002 0.003 ND <0.002 7/14/2005 ND <3.0 ND 0.00098 0.0017 ND <0.0005 0.0024 0.0085 0.031 ND <0.002 ND <0.002 ND <0.002 ND<0.002 8/9/2005 5.5 23 ND <0.002 0.0028 ND<0.002 ND <0.004 4.6 17 0.023 ND<0.008 ND <0.008 ND <0.008 9/28/2005 7.3 30 ND <0.2 ND <0.4 ND <0.2 ND <0.2 11 39 ND <0.8 ND <0.8 ND<0.8 ND <0.8 10/13/2005 ND <3.0 ND ND <0.005 0.0016 ND <0.005 ND <0.001 5.2 19 ND <0.002 ND <0.002 ND <0.002 ND <0.002 2/1/2006 ND <3.0 ND ND <0.00050 0.00093 ND <0.00050 ND <0.001 ND <0.002 ND <0.0072 ND <0.002 ND <0.002 ND <0.002 ND <0.002 5/16/2006 ND <3.0 ND ND <0.00050 0.00150 ND <0.00050 0.00140 0.100 0.38 ND <0.0020 ND <0.0020 ND <0.0020 ND <0.0020 VEW -3A 4/14/2005 150 615 ND<0.02 ND <0.02 ND <0.02 ND <0.02 99 360 0.59 ND<0.08 ND <0.08 ND <0.08 5/18/2005 75 307 0.00082 0.0027 0.0017 0.0058 76 280 ND <0.002 ND <0.002 0.012 0.011 6/20/2005 1,600 6,557 0.059 ND <0.01 ND <0.01 ND<0.01 53 190 0.23 ND <0.04 ND<0.04 ND <0.04 7/14/2005 570 2,336 ND <0.005 ND <0.005 ND <0.005 ND <0.01 31 110 ND <0.02 ND<0.02 ND<0.02 ND<0.02 Pagel of 3 TABLE 4 SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES) Shell Service Station 4050 Gosford Road, Bakersfield, CA a I ........... tlU ) m: 8/9/2005 2,200 9,016 ND <0.31 ND <0.31 9/28/2005 100 410 ND<0.005 0.0062 10/13/2005 55 225 ND <0.0075 0.019 2/1/2006 8.4 34 ND <0.0010 0.0013 5/16/2006 7.3 30 ND <0.0010 0.0028 ND <0.31 ND <0.005 ND <0.0075 ND <0.0010 0.00100 1!a .....:.;`a . 91`FOIz:..... . 52 32.0 34.0 7.7 3.4 190 110 120 28 12 TBA . ..... 11. .:.:.::. ND <1.3 ND <1.3 0.087 ND <0.02 0.054 ND <0.015 ND <0.004 ND <0.004 ND <0.004 ND <0.004 VEW -3B ND <1.3 ND <1.3 ND <0.02 ND <0.02 ND <0.015 ND <0.015 ND <0.004 ND <0.004 ND <0.004 ND <0.004 VEW -3B 4/14/2005 30 123 ND <0.004 ND <0.004 ND <0.004 0.011 31 110 ND <0.016 ND <0.016 ND <0.016 ND <0.016 5/18/2005 9.4 39 0.00085 0.0017 0.0015 0.0052 11 38 ND<0.002 ND <0.002 ND <0.002 ND <0.002 6/20/2005 18 74 0.001 0.0021 0.0014 0.011 12 44 ND <0.002 ND <0.002 0.003 ND <0.002 7/14/2005 17 70 0.001 0.0013 ND <0.0005 0.0016 19 68 ND <0.002 ND <0.002 ND <0.002 ND <0.002 8/9/2005 10 41 ND <0.002 0.003 ND <0.002 ND <0.004 8.6 31 ND <0.008 ND <0.008 ND <0.008 ND <0.008 9/28/2005 7.3 30 ND <0.02 ND <0.02 ND <0.02 ND <0.04 8.9 32 ND <0.08 ND <0.08 ND <0.08 ND <0.08 10/13/2005 9.2 38 ND <0.001 0.0031 ND <0.001 ND <0.002 10.0 36 ND <0.004 ND <0.004 ND <0.004 ND <0.004 2/1/2006 6.4 26 ND <0.0010 0.0014 ND <0.0010 ND <0.0020 6.3 23 ND <0.004 ND <0.004 ND <0.004 ND <0.004 5/16/2006 12 49 ND <0.0010 0.0022 ND <0.0010 0.0022 9.2 33 ND <0.004 ND <0.004 ND <0.004 ND <0.004 VEW -4A 4/14/2005 (1 MIN) ND <3.0 ND ND <0.004 ND <0.004 ND <0.004 0.0087 0.39 1.4 ND <0.016 ND <0.016 ND <0.016 ND <0.016 4/14/2005 (2 MIN) ND<3.0 ND ND <0.005 ND <0.005 ND <0.005 ND <0.005 0.57 2.0 ND <0.016 ND <0.016 ND <0.016 ND <0.016 4/14/2005 (5 MIN) 4.3 18 ND <0.005 ND <0.005 ND <0.005 ND <0.005 1.50 5.3 ND <0.02 ND <0.02 ND <0.02 ND <0.02 5/18/2005 ND <3.0 ND 0.00058 0.0016 0.0013 0.0059 0.94 3.4 ND <0.002 ND <0.002 ND <0.002 ND <0.002 6/20/2005 85 ND 0.0017 0.0013 0.00068 0.0036 0.15 0.53 ND <0.002 ND <0.002 ND <0.002 ND <0.002 7/14/2005 3.3 14 0.0012 0.0016 ND <0.0005 0.003 0.17 0.61 ND <0.002 ND <0.002 ND <0.002 ND <0.002 8/9/2005 ND <3.0 ND ND <0.002 0.0027 ND <0.002 ND <0.004 0.041 0.15 ND <0.008 ND <0.008 ND <0.008 ND <0.008 9/28/2005 ND <3.0 ND ND <0.001 0.0074 0.0025 0.0207 0.052 0.19 ND <0.004 ND <0.004 0.018 ND <0.004 10/13/2005 ND <3.0 ND ND <0.002 0.0025 ND <0.002 ND <0.004 0.058 0.21 ND <0.008 ND <0.008 ND <0.008 ND <0.008 2/1/2006 ND <3.0 ND ND <0.00050 0.00093 ND <0.00050 ND <0.0010 0.090 0.33 ND <0.002 ND <0.002 ND <0.002 ND <0.002 5/16/2006 ND <3.0 ND ND <0.00050 0.0018 ND <0.0050 0.0017 0.055 0.20 ND <0.002 ND <0.002 ND <0.002 ND <0.002 VEW -4B 4/14/2005 (1 MIN) ND <3.0 ND ND <0.002 0.0021 0.0025 0.0156 1.3 4.5 ND <0.008 ND <0.008 ND <0.008 ND <0.008 4/14/2005 (2 MIN) ND <3.0 ND ND <0.004 ND <0.004 ND <0.004 ND <0.004 1.3 4.8 ND <0.016 ND <0.016 ND <0.016 ND <0.016 4/14/2005 (5 MIN) ND <3.0 ND ND <0.004 ND <0.004 ND <0.004 0.0081 1.2 4.4 ND <0.016 ND <0.016 ND <0.016 ND <0.016 5/18/2005 ND <3.0 ND 0.00067 0.0012 0.0013 0.0054 0.0054 0.019 ND <0.002 ND <0.002 ND <0.002 ND <0.002 6/20/2005 ND <3.0 ND 0.00067 0.0016 0.00074 0.005 0.13 0.47 ND <0.002 ND <0.002 ND <0.002 ND <0.002 7/14/2005 ND <3.0 ND 0.00092 0.0013 ND <0.0005 0.0018 ND <0.002 ND <0.0072 ND <0.002 ND <0.002 ND <0.002 ND <0.002 8/9/2005 ND <3.0 ND ND <0.002 0.0039 ND <0.002 ND <0.004 0.37 1.4 ND <0.008 ND <0.008 ND <0.008 ND <0.008 9/28/2005 ND <3.0 ND ND <0.002 0.0075 0.0036 0.0295 0.25 0.91 ND <0.008 ND <0.008 ND <0.008 ND <0.008 10/13/2005 ND <3.0 ND ND <0.001 0.0026 ND <0.001 ND <0.002 0.034 0.12 ND <0.008 ND <0.008 ND <0.008 ND <0.008 2/1/2006 ND <3.0 ND ND <0.00050 0.0010 ND <0.00050 ND <0.0010 0.012 0.044 ND <0.002 ND <0.002 ND <0.002 ND <0.002 5/16/2006 ND <3.0 ND ND <0.00080 0.0022 0.00084 0.0027 0.130 0.49 ND <0.0032 ND <0.0032 ND <0.0032 ND <0.0032 VEW -5A 4/14/2005 89 365 ND <0.013 0.022 ND <0.013 ND <0.013 46 170 0.062 ND <0.05 ND <0.05 ND <0.05 5/18/2005 40 164 0.0009 0.003 0.0016 0.0056 55 200 0.014 ND <0.002 0.0074 0.0045 6/20/2005 440 1,803 0.013 ND <0.005 ND <0.005 0.0316 4.30 16 ND <0.02 ND <0.02 ND <0.02 ND <0.02 7/14/2005 92 377 0.0012 0.0017 ND <0.0005 0.0018 1.2 4.4 0.0095 ND <0.002 0.0038 ND <0.002 8/9/2005 480 1,967 ND <0.063 ND <0.063 ND <0.063 ND <0.13 3.0 11 ND <0.25 ND <0.25 ND <0.25 ND <0.25 Page 2 of 3 Page 3 of 3 TABLE SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES) Shell Service Station 4050 Gosford Road, Bakersfield, CA 0 I .................................. r.0 ES' 9/28/2005 62 254 ND<0.002 0.0072 0.0047 0.036 1.7 6.1 ND<0.008 ND<0.008 ND<0.008 ND<0.008 10/13/2005 20 82 ND<0.002 0.0022 ND<0.002 ND<0.004 2.2 7.8 ND<0.008 ND<0.008 ND<0.008 ND<0.008 2/1/2006 ND<3.0 ND ND<0.00050 0.0011 ND<0.00050 ND<0.00 10 1.3 4.8 ND<0.002 ND<0.002 ND<0.002 ND<0.002 5/16/2006 ND<3.0 ND ND<0.0010 0.0026 ND<0.00 10 0.0028 0.320 1.2 ND<0.004 ND<0.004 ND<0.004 ND<0.004 VEW-5B 4/14/2005 17 70 ND<0.004 ND<0.004 ND<0.004 ND<0.004 31 110 0.032 ND<0.016 ND<0.0 16 ND<0.0 16 5/18/2005 ND<3.0 ND 0.00062 0.0016 0.0013 0.0045 0.015 0.053 ND<0.002 ND<0.002 ND<0.002 ND<0.002 6/20/2005 23 94 0.00063 0.0011 ND<0.0005 0.00262 15 53 0.02 ND<0.002 ND<0.002 ND<0.002 7/14/2005 ND<3.0 ND 0.00069 0.0015 ND<0.0005 0.001 0.0031 0.011 ND<0.002 ND<0.002 ND<0.002 ND<0.002 8/9/2005 24 98 ND<0.002 0.0025 ND<0.004 33 120 0.02 ND<0.008 ND<0.008 ND<0.008- 9/28/2005 24 98 ND<0.001 0.0051 ND<0.002 0.0023 0.0185 24 85 0.0046 ND<0.004 0.0041 ND<0.004 10/13/2005 10 ND ND<0.00 1 0.0001 ND<0.00 I ND<0.002 13 46 ND<0.002 ND<0.002 ND<0.002 ND<0.002 2/1/2006 ND<3.0 ND ND ND<0.00050 0.0011 0.0020 ND<0.00050 ND<0.0010 ND<0.001 0.0021 ND<0.002 ND <0.0072 ND<0.002 ND<0.002 ND<0.002 ND<0.002 5/16/2006 ND<3.0 ND<0.00 10 0.180 0.64 ND<0.004 ND<0.004 ND<0.004 ND<0.004- Notes: TPH-G Concentration (ug/1) TPH-G concentration ppmv) x 10-6 x 100 g/mole x mole/24.4 I x 106 Ug/g ND - Not detected ppm - parts per million ugIL - micrograms per liter TPH-G - Total petroleum hydrocarbons as gasoline MTBE - Methyl-tert butyl ether TBA - Tert-butyl alcohol DIPE - Di-isopropyl ether ETBE - Ethyl tert-butyl ether TAME - Tert-amyl methyl ether Page 3 of 3 ATE :' ..:: : VEW -1A 4/14/2005 5/18/2005 6/20/2005 7/14/2005 8/9/2005 9/28/2005 10/13/2005 2/1/2006 5/16/2006 VEW -1B 4/14/2005 5/18/2005 6/20/2005 7/14/2005 8/9/2005 9/28/2005 10/13/2005 2/1/2006 5/16/2006 VEW -2A 4/14/2005 5/18/2005 6/20/2005 7/14/2005 8/9/2005 9/28/2005 TABLE 5 SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA 9":" ....... O .e :::::::::::::: Yttr..g................. a :......::::::::: li..b a ae...........Ga.rbon 0. C ::: No xtd ..... Ca'bOA :IOXk(.e.:::::: z .......... 0 a).. Q ::::::::::::::: e)................... . 10.1 79.7 ND ND 10.1 12.6 79.5 ND ND 7.9 10.1 80.5 ND ND 9.4 10.3 79.1 ND ND 10.6 10.0 78.9 ND ND 11.1 10.9 76.9 ND ND 12.2 12.3 79.0 ND ND 8.8 12.8 79.6 ND ND 7.6 14.1 79.8 ND ND 6.11 10.4 79.8 ND ND 9.8 12.6 79.7 ND ND 7.7 10.2 80.4 ND ND 9.4 10.8 79.3 ND ND 9.9 10.3 78.8 ND ND 10.9 11.2 77.0 ND ND 11.8 11.0 79.6 ND ND 9.4 12.9 79.9 ND ND 7.2 14.2 79.9 ND ND 5.85 8.3 80.9 ND ND 10.9 10.1 80.3 ND ND 9.5 7.0 80.9 ND ND 12.2 8.6 79.6 ND ND 11.8 7.2 79.1 ND ND 13.6 16.0 77.5 ND ND 6.4 Page 1 of 4 TABLE 5 SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA y .......... 0901 .................. 01 ...... CO .... arbo d 10/13/2005 9.9 79.5 ND ND 10.6 2/1/2006 12.3 79.7 ND ND 7.9 5/16/2006 14.0 79.6 ND ND 6.39 VEW-213 4/14/2005 9.1 80.2 ND ND 10.7 5/18/2005 11.2 80.1 ND ND 8.7 6/20/2005 9.7 80.5 ND ND 9.9 7/14/2005 10.5 79.3 ND ND 10.2 8/9/2005 10.0 78.8 ND ND 11.2 9/28/2005 12.0 77.1 ND ND 10.9 10/13/2005 11.1 79.5 ND ND 9.4 2/1/2006 12.6 79.8 ND ND 7.6 5/16/2006 14.6 79.8 ND ND 5.62 VEW-3A 4/14/2005 6.2 81.5 ND ND 12.4 5/18/2005 8.2 80.7 ND ND 11.1 6/20/2005 5.5 81.1 ND ND 13.4 7/14/2005 6.4 79.4 ND ND 14.2 8/9/2005 6.7 78.6 ND ND 14.7 9/28/2005 7.2 76.0 ND ND 16.8 10/13/2005 8.5 78.9 ND ND 12.6 2/1/2006 10.2 79.6 ND ND 10.1 5/16/2006 11.9 79.5 ND ND 8.58 VEW-313 4/14/2005 8.1 80.6 ND ND 11.3 5/18/2005 9.9 80.4 ND ND 9.7 6/20/2005 7.9 80.7 NQ NQ 11.4 Page 2 of 4 TABLE 5 SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA AAT......... ................::::::::::::::. A? ge .............. 0z) ....................( o : :::::::::: O .......... o '.eYtr..g............... z)................. etI...t a e..............rb.60 eH :::::::::::::.:.::::::::: f.....d)..... ................(CM) 7V1Co toRde.:::::::::Ga-tioA 0 o e::::: Cbz) ........... . P: 7/14/2005 9.4 79.4 ND ND 11.2 8/9/2005 8.3 79.2 ND ND 12.5 9/28/2005 9.5 76.8 ND ND 13.7 10/13/2005 10.2 79.4 ND ND 10.5 2/1/2006 11.6 79.8 ND ND 8.6 5/16/2006 13.1 79.8 ND ND 7.06 VEW -4A 4/14/2005 (1 MIN) 6.9 81.5 ND ND 11.5 4/14/2005 (2 MIN) 6.8 81.6 ND ND 11.6 4/14/2005 (5 MIN) 8.0 82.1 ND ND 9.9 5/18/2005 7.8 81.3 ND ND 10.9 6/20/2005 6.8 81.2 ND ND 12.0 7/14/2005 7.8 79.7 ND ND 12.5 8/9/2005 8.5 78.8 ND ND 12.8 9/28/2005 9.8 76.8 ND ND 13.4 10/13/2005 8.8 79.5 ND ND 11.7 2/1/2006 11.0 79.8 ND ND 9.2 5/16/2006 12.8 79.6 ND ND 7.54 VEW-4B 4/14/2005 (1 MIN) 8.6 81.6 ND ND 9.8 4/14/2005 (2 MIN) 9.5 81.2 ND ND 9.3 4/14/2005 (5 MIN) 8.7 81.7 ND ND 9.7 5/18/2005 13.3 80.0 ND ND 6.6 6/20/2005 9.1 81.1 ND ND 9.7 7/14/2005 11.7 79.8 ND ND 8.5 Page 3 of 4 TABLE SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA I ................ ..... I ... . ......... ........ . Q). .*.,.,. I .................... 8/9/2005 9.8 79.6 ND ND 10.6 9/28/2005 10.2 77.8 ND ND 12.0 10/13/2005 10.2 80.3 ND ND 9.5 2/1/2006 12.6 80.2 ND ND 7.1 5/16/2006 13.9 80.1 ND ND 6.07 VEW-5A 4/14/2005 5.7 81.8 ND ND 12.5 5/18/2005 10.0 80.2 ND ND 9.8 6/20/2005 3-3 81.6 ND ND 15.1 7/14/2005 5.8 79.9 ND ND 14.3 8/9/2005 4.5 79.8 ND ND 15.7 9/28/2005 5.2 76.9 ND ND 17.9 10/13/2005 7.7 79.8 ND ND 12.6 2/1/2006 11.8 79.7 ND ND 8.5 5/16/2006 12.9 79.7 ND ND 7.44 VEW-5B 4/14/2005 10.2 80-3 ND ND 9.5 5/18/2005 12.4 79.9 ND ND 7.7 6/20/2005 8.4 80.4 ND ND 11.2 7/14/2005 11.5 79.3 ND ND 9.2 8/9/2005 9.1 79.3 ND ND 11.6 9/28/2005 9.8 77.2 ND ND 13.0 10/13/2005 10.8 79.8 ND ND 9.4 2/1/2006 12.9 79.9 ND ND 7.2 5/16/2006 14.2 79.9 ND ND 5.86 Notes: ND - Not detected Page 4 of 4 FIGEWEs T^ C) u) O a Iz t, ZW m 0 Z TOPO! map ornteo on 1112OA -I? from "Celifonrra.tpo" and "Undtltd.tpq" 119107.000' w 119 "06.6001 w 119,05,000, w WGS64 1!9 °04.070 w TH N t 1. ,mutrI _m fu, o em tj Ps fi=W RCN 02M] N.doa!a.00 ohilbmst...two. owl r: r A DELTA SHELL OIL PRODUCTS US ENVIRONMENTAL SHELL SERVICE STATION CONSULTING INC. BAKERSFIELD, CALIFORNIA N FIGURE 1 CALIF. SITE LOCATION MAP SITE 4050 GASFORD ROAD BAKERSFIELD, CALIFORNIA F- APPENDIX A MNA FIELD DATA SHEETS FIELD DATA SHEET Shell Service Station 4050 Gosford Rd. Bakersfield, CA aq1 v-\* n ON ARRIVAL: 1. Review Health & Safety Plan 2. a) Calibrated PID to Zero Gas b) Calibrated PID to Hexane n Ifnot calibrated to hexane indicate calibration gas: Date: 51— .4 Arrival Ti e: ((4-0 Departure Time:! Field Tech. Initial =jam ProjectNo.: PA405OG -1 A O&M Out of Scope 3. Take Ambient Air PID Readin s Ambient Air PID Reading If concentrations are above 0.0 ppmv, Nnotify Marsaili Gillecriosd before continuing to perform O &M. 4. Take PID Readings Once a Month – PID readin 7Marsaili aired by APCD) Highest Well PID Reading If any well concentration is above 4,819 Influent Before Dilution) 9k ppmv, stop purging the wells and notify ppmv hexane) Gillecriosd SVE OPERATIONS DATA 4. Record Manifold Vacuum Measurements: Arrival Notes Manifold Vacuum VEW -1A Stinger (in.Hg) f Manifold Vacuum VEW -113 Stinger in.Hg) Manifold Vacuum VEW -2A Stinger pin.Hg)v Manifold Vacuum VEW -2B J YLStinger (in.Hg) Manifold Vacuum VEW -3A t I 0 1Stinger (in.Hg) Manifold Vacuum VEW -3B Stinger (in.Hg) Manifold Vacuum VEW-4A q3, `1Stinger (in.Hg) 1 Manifold Vacuum VEW -413 Stinger (in.Hg) Manifold Vacuum VEW -5A r 1Stinger (in.Hg) Manifold Vacuum VEW -513 Stinger (in.Hg) I t Y:1 Shell Snrn41\4050Gosford\ GENEKAUO&M Folder\OM Field Dam Shea4050GoArd.doc FIELD DATA SHEET Shell Service Station 4050 Gosford Rd. Bakersfield, CA E[l) SVE System Field Data Record Svstem Data Date: Arrival Tin e: Departure Time: 7,? Field Tech. Initial- ProjectNo.: PA4050G-1 O&M Out of Scope Y,\_Sbell SiteeA40S0 Gwfor&—GENBKA.L\O&M Foldw QM Field Data Sbeet 4050 Gosfor&doc Well VEW-1A Well VEW-1B Well VEW-2A Well VEW-213 Well VEW-3A Well VEW-313 Well VEW4A Well VEW-413 Well VEW-5A Well VEW-5R Average Well Concentration Sum of PED 'readings) If the average concentration is above 4,819 ppmv, stop purging the wells and notify Marsaili Gillecriosd. of wells Y,\_Sbell SiteeA40S0 Gwfor&—GENBKA.L\O&M Foldw QM Field Data Sbeet 4050 Gosfor&doc V) Sampling FIELD DATA SHEET Shell Service Station 4050 Gosford Rd. Bakersfield, CA Take Vapor sample: Yes No Instructions: Date: Arrival T' e : //O-P Departure Time: Field Tech. Ini ' ProjectNo.: PA4050G -1 O O&M o Out of Scope 1. Take Tedlar Bag sample of Influent and coordinate with lab for pickup. 2. Collect Vapor sample from each well for laboratory analysis at the O &M site visit of each month for the first 6 months and quarterly thereafter. Take Other samples: Yes No Instructions: Y:\-Shell ShafW,4050 Goaford GENEKALXOW FoldeAOM field Data Shat 4050 Godord doc FIELD DATA SHEET Shell Service Station 4050 Gosford Rd. Bakersfield, CA Date: Arrival T' e: Departure Time: Field Tech. Initial: ProjectNo.: PA405OG -1 At O &M o Out of Scope Y:1 ShcO SIu \4\40SO Oacfmd- ._OENERAL\O &M FoldalpM Field Data Shea 4050 Ootford.doc DELTA EMPLOYEE SITE HEALTH AND SAFETY PLAN REVIEW RECORD I acknowledge that I have read and understood the contents of this Site Health and Safety Plan and I agree to abide by all provisions as set forth. I have also checked In with the site client contact to alert them of our presence and for any daily safety issues. Please note: "no implements are to be brought on a Delta site, or while performing Delta business that are, or are intended to be used, as weapons (such as: guns, knives, etc.) ". Firearms are expressly prohibited. By signing below you are certifying, that this policy is upheld. Delta retains the option to audit your personnel and equipment to assure your compliance. Date A DELTA ENVIRONMENTAL CONSULTANTS DAILY AILGATE) HEALTH AND SAFETY BRIEFING LOG Date: Start Time: /dam r( Protective Clothing Requirements (hard hat, steel toes, vest, glasses, plugs, & gloves) Procedures (hospital route) Hazards Hazards Exclusion Zone (cones with flags 42 ", caution tape, totally enclosed) Traffic Hand Tools Other: Other: Other: Attendees: Print Nam j Signat Cdn Meeting Conducted by: Name (Site Health apd;Safety Officer), CALSCIENCE ENVIRONMENTAL Shell Oil Products US Chain Of Custody RecordLARARATARIFS_ INC_ DISTR amot ; Vfte With *W reDUL Open to Fie. Yebw Wd Pik to Crest to 0= Rnxmo Equiva Project Manager to be Invoiced: iNiQBfiuldEttCsBit);; 9 7 3 31 71 21 6 167440LincolnWaysomaaENaNi -8-- g BATE: ;J k Garden Grove, CA 92841 -1432 7ECtuacaLSERVtCES JeffWhitworth PAGE: / of / Rft1rf} 895- fax 0 CRwr oN714) 5494 (714) 894 -7501 1 2 1 2 2 4 SAAPLM COIPiNY: LOO CID! WEADDRESS (Sh d Gd CM* GLOBALDN0. Delta Environmental Consultants KHMM 4050 Gosford Road, Bakersfield AGURe 8: MFDELIMMUE TOab>awumbPedrwDmbwk PIIGNHNO: COWULTIWTPROJECTNO: 911 S. Primrose Ave., Monrovia CA Karyn Thom 1626-256-6662 IPA40SOG-1PROJECTCONTACTP(UdopywPOFR*Wlok Sampler /Geologist: i !A U, E?H4 ?_ ': EEE E :::E'•iIE E E`•i e' ':'e E ' -i` -i ErKatherineSwords MarslN GlAecriosd Teusq"4e FAX E.LIAL 62 266 6662 maplecriosdlIDdeftaenv.com / 22 626 - 2666263 V TURNAROUND TRAE (BUSINESSDAYSy 0 (o DAYS 0 s DAYS 0 nwouRs 0 4a H m O 24 Houps O LESS THAN 24 Nouns REQUESTED ANALYSIS O a • Rwacs REPDRT FoRw O t srAGENCY: c 0 FIELD NOTES: ContatnedPreservative GCHUIS NTBE COhffIRMATION: NiGHEST wGwSr per BORING ALL SPECIAL INSTRUCTIONS OR NOTES: CHECK BOX IF EDO t3t=NEEDED erPtD Readings Please txovide report in pab and ura/L a Laboratory Notes a v 5 m o m si rte Field Sample Identification SAMPLING N0. of TEMPERATURE ON RECEIPT C n V !"I j Va X X X ASTM 194E for oxygen, 66 p nitrogen, methane, carbon dioxide, and ota carbon monoxide. if jrw 't r ro Reeebeety. (SBputlre) Doc Tier: fl S!• is twU DW: Tim: . RerJgAdfRMby. (rDm) ReceNedDY (SbrtAOe) Ode: TtAe DISTR amot ; Vfte With *W reDUL Open to Fie. Yebw Wd Pik to Crest to 0= Rnxmo EI .11 :3 SOIL VAPOR SAMPLING LABORATORY REPORT AND CHAIN -OF- CUSTODY DOCUMENTS Page 1 of 21 G Iscience2 nvironmental f A. aboratories, Inc. May 24, 2006 Katherine Swords Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016 -8403 Subject: Calscience Work Order No.: 06 -05 -1085 Client Reference: 4050 Gosford Rd., Bakersfield, CA Dear Client: Enclosed is an analytical report for the above - referenced project. The samples included in this report were received 5/17/2006 and analyzed in accordance with the attached chain -of- custody. i Unless otherwise noted, all analytical testing was accomplished in accordance with the guidelines established in our Quality Systems 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, 4 Calscience Environmental Laboratories, Inc. Don Burley Project Manager CA -ELAP ID: 1230 NELAP ID: 03220CA 0 CSDLAC ID: 10109 SCAQMD ID: 93LA0830 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 a alscience Z= nvironmental AL aboratories, Inc. Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016 -8403 Project: 4050 Gosford Rd., Bakersfield, CA Analytical Report Date Received: Work Order No: Preparation: Method: Units: IJ Page 2 of 21 05/17/06 06 -05 -1085 N/A ASTM D -1946 v Page 1 of 2 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID VEW -3A :. .06-05-1085-1 ;' 05/16/06.1 Air' N/A 05/17/06 0605171-01- Parameter Result EL l-E qua! Parameter Result SL PE aloe/ Methane ND 0.100 1 Oxygen + Argon 11.9 0.1 1 Carbon Dioxide 8.58 0.10 1 Nitrogen 79.5 0.1 1 Carbon Monoxide ND 0.100 1 06 -05- 1085 -3 VEW-36 N/A _,05117/06 060617L01 06 -05- 1085 -2 05/16/06' Air,-, NIA : 05117/06 0605171-01 Parameter Result RL 1E Qi!21 Parameter Result aL DF Qual Methane ND 0.100 1 Oxygen + Argon 13.1 0.1 1 Carbon Dioxide 7.06 0.10 1 Nitrogen 79.8 0.1 1 Carbon Monoxide ND 0.100 1 06 -05 71085 05/76/06 Air" ` VEW -4A " 06 -05- 1085 -3 05116106 Ali - N/A _,05117/06 060617L01 Parameter Result EL 1?E Q.al Parameter Result RL 1?E 9iial Methane ND 0.100 1 Oxygen + Argon 12.8 0.1 1 Carbon Dioxide 7.54 0.10 1 Nitrogen 79.6 0.1 1 Carbon Monoxide ND 0.100 1 VEW -46 06 -05 71085 05/76/06 Air" ` N/A 05/17/06 060511-074 Parameter Result BL DF Qual Parameter Result RL DF Q Methane ND 0.100 1 Oxygen + Argon 13.9 0.1 1 Carbon Dioxide 6.07 0.10 1 Nitrogen 80.1 0.1 1 Carbon Monoxide ND 0.100 1 7YEW -5A 06 -05- 1085 -5- + 05/16106 Air a WA, .05/17106 060511711-011, rameter Result RL DF Qual Parameter Result RL 12E 911.91 Methane ND 0.100 1 Oxygen + Argon 12.9 0.1 1 Carbon Dioxide 7.44 0.10 1 Nitrogen 79.7 0.1 1 Carbon Monoxide ND 0.100 1 VEW -0B 06 -05- 1085 6 05/16/06 AID WA° 05/17/06 060617L01 Parameter Result aL 1?E Qid Parameter Result EL 12E Qua[ Methane ND 0.100 1 Oxygen + Argon 14.2 0.1 1 Carbon Dioxide 5.86 0.10 1 Nitrogen 79.9 0.1 1 Carbon Monoxide ND 0.100 1 VEW -1A _; 06 -05- 1085 -7 06/16/W Air: _ .; N/A 05/17/06 0605171-01 -„ Parameter Result RL DF Qu ll Parameter Result RL DF Qual Methane ND 0.100 1 Oxygen + Argon 14.1 0.1 1 Carbon Dioxide 6.11 0.10 1 Nitrogen 79.8 0.1 1 Carbon Monoxide ND 0.100 1 W4 RL - Reporting Limit , DF - Dilution Factor , Qual -Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 m alscience nvironmental AL aboratories, Inc. Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016 -8403 Project: 4050 Gosford Rd., Bakersfield, CA Analytical Report Date Received: Work Order No: Preparation: Method: Units: Page 3 of 21 r` 05/17/06 06 -05 -1085 N/A ASTM D -1946 V Page 2 of 2 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID VEW -1 B 06 -06- 1085 -8 05/16/06 Air N/A = 05/17/06 0605171-01 Parameter Result BL 12E Sawa/ Parameter Result aL 9F Qual Methane ND 0.100 1 Oxygen + Argon 14.2 0.1 1 Carbon Dioxide 5.85 0.10 1 Nitrogen 79.9 0.1 1 Carbon Monoxide ND 0.100 1 0.100 1 VEW -2A= - F- - < - ' 06 -06- 1085-9; 06/16/06. Air= N/A' 05118/06` 060518L01 Paramete Result K pF (mil Parameter Result Bt, p Qui31 Methane ND 0.100 1 Oxygen + Argon 14.0 0.1 1 Carbon Dioxide 6.39 0.10 1 Nitrogen 79.6 0.1 1 Carbon Monoxide ND 0.100 1 0.100 1 VEW -213 ND 099 -03 -002 -96= 06 -05- 1085 -10, 05116106. Air N/A 05/18106 060518L01 Parameter Result BL l?E Salle/ Parameter Result RL 9F Sataal Methane ND 0.100 1 Oxygen + Argon 14.6 0.1 1 Carbon Dioxide 5.62 0.10 1 Nitrogen 79.8 0.1 1 Carbon Monoxide ND 0.100 1 ND 0.100 1 Method Blank, ND 099 -03 -002 -96= NIA Air N/A ,. 05/17106 060617L01 Parameter Result RL PE Saga! Parameter Result RL DF Qji Methane ND 0.100 1 Oxygen + Argon ND 0.100 1 Carbon Dioxide ND 0.100 1 Nitrogen ND 0.100 1 Carbon Monoxide ND 0.100 1 Method Blank - = . - 099=03- 002 -97, N/A 'Air =' N /A' - 05/18/06 = 0605181-01. - - Parameter Result L DF Qual Parameter Result RL 2E Qyal Methane ND 0.100 1 Oxygen + Argon ND 0.100 1 Carbon Dioxide ND 0.100 1 Nitrogen ND 0.100 1 Carbon Monoxide ND 0.100 1 W4 RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 science nvironmental L aboratories, Inc. Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016 -8403 Project: 4050 Gosford Rd., Bakersfield, CA Analytical Report Date Received: Work Order No: Preparation: Method: Page 4 of 21 05/17/06 06 -05 -1085 N/A EPA TO -3(M) Page 1 of 2 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID VEW-M - 06 -05- 108541 o 05/16106= - Air ° '_ ,,v NIA '= 05/17/06 . 060517L01 Parameter Result EL LIE Saud ulnita TPH as Gasoline 7.3 3.0 1 ppm (v/v) VEW3B 06 -05- 1085 -2 05I161M! Air WA 05/17/06 060517L0I Parameter Result EL P-E Qunits TPH as Gasoline 12 3 1 ppm (v /v) I VEW 4A ._ - OB -05 -10853 05I16/06 ° Air WA --- 05/17/06'' 0605171-01 ' Parameter Result EL p 901 Units TPH as Gasoline ND 3.0 1 ppm (v /v) VEW B d- + „ 06 -05 1085 -4 '= 05116/06Y- Alr WA' ' '06/17/06` 060617L01 Parameter Result EL 9E 91121 units TPH as Gasoline ND 3.0 1 ppm (v /v) vEW -SA. 06 -05- 1085.5 05116106= ° Air s NIA` ° -° 05/17/06 0605171-01 Parameter Result EL QF Quat units TPH as Gasoline ND 3.0 1 ppm (v /v) VEW7513z i. .06-05 - 1085 -6 ^ 05/16/06- Air ” °' WA`' 05/17106 0605171-01 Parameter Result EL PF Qua[ ni TPH as Gasoline ND 3.0 1 ppm (v /v) RL - Reporting Limit DF - Dilution Factor Qual - Qualfiers 1440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL (714) 895 -5494 FAX: (714) 894 -7501 Project: 4050 Gosford Rd., Bakersfield, CA Page 2 of 2 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID VEVU -1A 06 -05- 10854 , 05/16/06 ` :' Air NIA 05/17/06 060517L01 Parameter Result Page 5 of 21 alscience+ Ali Units V 4. nvironmental Analytical Report 1 ppm (vN) L aboratories, Inc. VEW -1 B Ur Delta Environmental Consultants, Inc. Date Received: 05/17/06 911 South Primrose Avenue, Unit K Work Order No: 06 -05 -1085 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -3(M) Project: 4050 Gosford Rd., Bakersfield, CA Page 2 of 2 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID VEVU -1A 06 -05- 10854 , 05/16/06 ` :' Air NIA 05/17/06 060517L01 Parameter Result RL P-E Ali Units TPH as Gasoline ND 3.0 1 ppm (vN) VEW -1 B 06-05-11085-8, `: 05/116106- Air NIA, 05/17 /06 060517L0I ' Parameter Result L, pF mil ni TPH as Gasoline ND 3.0 1 ppm (v/v) VEW -2A 06 -05- 1085 -9 - _, 05/16/06 Air N/A , , 05/17/06 060617L0I Parameter Result DF Qual Units TPH as Gasoline ND 3.0 1 ppm (v/v) VIEW-2113- 06-05- 1085 -10 05116106 Air, N/A „ 06/17106', 0605171-01 Parameter Result RL 12E QUW Units TPH as Gasoline ND 3.0 1 ppm (v /v) Method Blank 088 -01 -005 -560 N/A Air NIA 05/17/06 0605171-01 ' Parameter Result a P-E Q" Units TPH as Gasoline ND 3.0 1 ppm (v /v) RL - Reporting Limit DF - Dilution Factor Qual - Qualfiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 TEL:(714) 895 -5494 FAX: (714) 894 -7501 Page 6 of 21 L alscience f it-nvironmental Analytical Report A. aboratories, Inc. < U Delta Environmental Consultants, Inc. Date Received: 05/17/06 911 South Primrose Avenue, Unit K Work Order No: 06 -05 -1085 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -15 Units: ppb (v /v) Project: 4050 Gosford Rd., Bakersfield, CA Page 1 of 4 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID VEW-3A , 06 -05- 1085 -1 ' 05H6/06' `` Air " "N/A 05/18106 0605181-01 ' Parameter Result EL 2E Q2a! Parameter Result RL DIE Qld Benzene ND 1.0 2 Methyl -t -Butyl Ether (MTBE) 3400 400 200 Toluene 2.8 1.0 2 Tert-Butyl Alcohol (TBA) ND 4.0 2 Ethylbenzene 1.0 1.0 2 Diisopropyl Ether (DIPE) ND 4.0 2 p /m- Xylene 3.6 2.0 2 Ethyl -t -Butyl Ether (ETBE) ND 4.0 2 o-Xylene 1.9 1.0 2 Tert- Amyl -Methyl Ether (TAME) ND 4.0 2 Surrogates: REC (%) Control gj( Surrogates! REC ( %) Control 91w Limit;: Limit;; 1,4- Bromofluorobenzene 99 57 -129 1,2- Dichloroethane -d4 88 47 -137 Toluene -d8 104 78 -156 VEW-313 06 -05- 1085 -2 05/16106 Air, N/A 06118/06: ; 0605181-01 Parameter Resul aL DF Qual Parameter Result RL DF GQu l Benzene ND 1.0 2 Methyl -t -Butyl Ether (MTBE) 9200 800 400 Toluene 2.2 1.0 2 Tert-Butyl Alcohol (TBA) ND 4.0 2 Ethylbenzene ND 1.0 2 Diisopropyl Ether (DIPE) ND 4.0 2 p /m- Xylene 2.2 2.0 2 Ethyl -t -Butyl Ether (ETBE) ND 4.0 2 o-Xylene 1.1 1.0 2 Tert-Amyl -Methyl Ether (TAME) ND 4.0 2 Surroaatesd REC (%) Control Q" Surroaates: REC ( %) Control 1 Li k Limits 1,4- Bromofluorobenzene 95 57 -129 1,2- Dichloroethane -d4 90 47 -137 Toluene -l8 95 78-156 VEW -4A 06 -05- 10854 0506106 Alr` `' N/A 05/18/06, _ 060518L01 „ Parameter Result RL PE Q" Parameter Result I DF Qu@i Benzene ND 0.50 1 Methyl -t -Butyl Ether (MTBE) 55 8 4 Toluene 1.8 0.5 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene ND 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene 1.7 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o-Xylene 0.74 0.50 1 Tert- Amyl -Methyl Ether (TAME) ND 2.0 1 Surroaates: REC ( %) Control QjLjd Surrogates: REC (%) Control 1 Limits Limits 1,4- Bromofluorobenzene 94 57 -129 1,2- Dichloroethane -d4 101 47 -137 Toluene -d8 103 78-156 RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers W4 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 a/science nvironmental AL aboratories, Inc. Analytical Report Page 7 of 21 CCoR, Delta Environmental Consultants, Inc. Date Received: 05/17/06 911 South Primrose Avenue, Unit K Work Order No: 06 -05 -1085 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -15 Units: ppb (v /v) Project: 4050 Gosford Rd., Bakersfield, CA Page 2 of 4 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID VEW -4B " : 06 -06- 10854 05/16/06 Air N/A 06119%06 0605191-01 Parameter Result RL DIE Saul Parameter Result L 2 Quai Benzene ND 0.80 1.59 Methyl -t -Butyl Ether (MTBE) 130 8 4 Toluene 2.2 0.8 1.59 Tert-Butyl Alcohol (TBA) ND 3.2 1.59 Ethylbenzene 0.84 0.80 1.59 Diisopropyl Ether (DIPE) ND 3.2 1.59 p /m- Xylene 2.7 1.6 1.59 Ethyl -t -Butyl Ether (ETBE) ND 3.2 1.59 o-Xylene 1.1 0.8 1.59 Tert- Amyl -Methyl Ether (TAME) ND 3.2 1.59 Surroaates: REC M Control Sdi& Surroaates: REC ( %) Control Q11w 2 Limlts 1.3 1.0 2 Lw2k Tert- Amyl -Methyl Ether (TAME) 1,4- Bromofluorobenzene 106 57 -129 1,2- Dichloroethane -d4 126 47 -137 Toluene-08 105 78-156 Control I. VEW -5A ' 06 -06- 1085 -5 - 05/16/06 Air. N/A ' 05/18/06 G60618L01 Parameter Result RL DF Qual Parameter Result RL DE Qom( Benzene ND 1.0 2 Methyl -t -Butyl Ether (MTBE) 320 16 8 Toluene 2.6 1.0 2 Tert-Butyl Alcohol (TBA) ND 4.0 2 Ethylbenzene ND 1.0 2 Diisopropyl Ether (DIPE) ND 4.0 2 p /m- Xylene 2.8 2.0 2 Ethyl -t -Butyl Ether (ETBE) ND 4.0 2 o-Xylene 1.3 1.0 2 Tert- Amyl -Methyl Ether (TAME) ND 4.0 2 Surrogates: REC (%) Control QPW Surroaates: REC Control Limi s 11mb 1,4- Bromofluorobenzene 100 57 -129 1,2- Dichloroethane -d4 87 47 -137 Toluene-d8 103 78-156 VEW -SB 06 -05 -1085-0 05/16/06 Air -' N/A 06/18106 0605181-01 ' Paramete Result RL DF Q" Parameter Result RJ, pE Qom! Benzene ND 1.0 2 Methyl -t -Butyl Ether (MTBE) 180 10 5 Toluene 2.0 1.0 2 Tert-Butyl Alcohol (TBA) ND 4.0 2 Ethylbenzene ND 1.0 2 Diisopropyl Ether (DIPE) ND 4.0 2 p /m- Xylene 2.1 2.0 2 Ethyl -t -Butyl Ether (ETBE) ND 4.0 2 o- Xylene ND 1.0 2 Tert- Amyl -Methyl Ether (TAME) ND 4.0 2 Surroaates: REC ( %) Control Q" Surrogates: REC Control gAW Link Limits 1,4- Bromofluorobenzene 99 57 -129 1,2- Dichloroethane -d4 91 47 -137 Toluene-08 100 78-156 W4 RL - Reporting Limit DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 - TEL:(714) 895 -5494 9 FAX: (714) 894 -7501 science Mnvironmental AL aboratories, Inc. Analytical Report Page 8 of 21 G Y -- Delta Environmental Consultants, Inc. Date Received: 05/17/06 911 South Primrose Avenue, Unit K Work Order No: 06 -05 -1085 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -15 Units: ppb (v /v) Project: 4050 Gosford Rd., Bakersfield, CA Page 3 of 4 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID VEW -1A Ofi -05 -1085 7 ` = 05/16/06 ` Air. , MIA 05/18/06 0605181-01 Parameter Result BL DIE Quit! Parameter ResuR SL pE QUW Benzene ND 0.50 1 Methyl -t -Butyl Ether (MTBE) 13 2 1 Toluene 2.3 0.5 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene 0.68 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene 2.6 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o-Xylene 1.2 0.5 1 Tert-Amyl- Methyl Ether (TAME) ND 2.0 1 Surrogates: REC ( %) Control Qiol Surrogates: REC (%1 Control Ste! Lbhla Lifflk 1,4- Bromofluorobenzene 99 57 -129 1,2- Dichloroethane -d4 74 47 -137 Toluene -i8 110 78-156 VEWA B 06 -05- 1085-8 05116/06 Air N/A ; 06/18/06 060618LOI Parameter Result aL pIE Qom( Parameter Result EL DF Qual Benzene 0.84 0.50 1 Methyl -t -Butyl Ether (MTBE) 6.3 2.0 1 Toluene 2.5 0.5 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene 0.56 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene 2.5 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o-Xylene 1.0 0.5 1 Tert- Amyl -Methyl Ether (TAME) ND 2.0 1 Surrogates: REC Control QuW Surrogates: REC (%) Control Q11w 1,4- Bromofluorobenzene 93 57 -129 1,2- DichloroethaneA4 56 47 -137 Toluene -d8 95 78-156 VEW -2A 06 -05-1086 -9 _; ° 05/10106_ - Air,. = N/A 05/18/06 0605181-01 Parameter Result RL DF Qual Parameter Result RL DF QUW Benzene ND 0.50 1 Methyl -t -Butyl Ether (MTBE) 720 40 20 Toluene 1.8 0.5 1 Tert -Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene 0.56 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene 1.8 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o-Xylene 0.74 0.50 1 Tert- Amyl - Methyl Ether (TAME) ND 2.0 1 Surrogates: REC (%) Control Q{oj Surrogates: REC ( %) Control QUW Li k Limits 1,4- Bromofluorobenzene 87 57 -129 1,2- Dichloroethane -d4 93 47 -137 Toluene -d8 115 78-156 W4 RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 Page 9 of 21 alscience u r C C C" nvironmental Analytical Report AL aboratories, Inc. Delta Environmental Consultants, Inc. Date Received: 05/17/06 911 South Primrose Avenue, Unit K Work Order No: 06 -05 -1085 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -15 Units: ppb (v /v) Project: 4050 Gosford Rd., Bakersfield, CA Page 4 of 4 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID VEW -2B 06 -05- 1085 -10' 05/16/06 Air NIA" 0605181-01 Parameter Result EL DE Q& Parameter Result RL QE 9I161 Benzene ND 0.50 1 Methyl -t -Butyl Ether (MTBE) 100 20 10 Toluene 1.5 0.5 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene ND 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene 1.4 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o-Xylene 0.57 0.50 1 Tert- Amyl -Methyl Ether (TAME) ND 2.0 1 Surrogates; REC (%) Contra Qi& Surrogates: REC (%) Control SdSd61 1_imits Lialk 1,4- Bromofluorobenzene 89 57 -129 1,2- Dichloroethane-d4 102 47 -137 Toluene -d8 105 78-156 Method Blank 097 -09 - 002 -4,877 N%A= ^' -Air : NIA; 061191060 0605191-01 Parameter Result tILL DF Qom( Parameter Re ul RL 1?E Qual Benzene ND 0.50 1 Methyl -t -Butyl Ether (MTBE) ND 2.0 1 Toluene ND 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene ND 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene ND 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o-Xylene ND 0.50 1 Tert- Amyl - Methyl Ether (TAME) ND 2.0 1 Surrogates: REC ( %1 Control Q" Surrogates: REC ( %) Control Q1,121 umlb Limi 1,4- Bromofluorobenzene 96 57 -129 1,2- Dichloroethane-d4 101 47 -137 Toluene-08 100 78-156 Method Blank 097 -08-002 -4,889, NIA Ali N/A 05/18/06 0605181-01 Parameter Result L QE Qu II Parameter Result RL DF Qgst Benzene ND 0.50 1 Methyl -t -Butyl Ether (MTBE) ND 2.0 1 Toluene ND 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene ND 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene ND 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o-Xylene ND 0.50 1 Tert- Amyl - Methyl Ether (TAME) ND 2.0 1 Surrogates: REC (%) Control QUW Surrogates: REC ( %) Control QUW Unrab Limits 1,4- Bromofluorobenzene 93 57 -129 1,2- Dichloroethane -t4 64 47 -137 Toluene -d8 95 78-156 RL - Reporting Limit , OF - Dilution Factor , Qual -Qualifiers W4 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 Page 10 of 21 L alscience v N C C Znvironmental Analytical Report -. 1. aboratories, Inc. u Delta Environmental Consultants, Inc. Date Received: 05/17/06 911 South Primrose Avenue, Unit K Work Order No: 06 -05 -1085 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -15 Units: ug /L Project: 4050 Gosford Rd., Bakersfield, CA Page 1 of 4 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID VEW-3A - 06 -05- 10854`'.,`_ ' 05/16/06" AV N/A 05/18/06 0606181-01- ° Parameter Resu I a jE Q1 Parameter Result RL pF Q11a1 Benzene ND 0.0032 2 Methyl -t -Butyl Ether (MTBE) 12 1 200 Toluene 0.011 0.004 2 Tert-Butyl Alcohol (TBA) ND 0.012 2 Ethylbenzene 0.0044 0.0043 2 Diisopropyl Ether (DIPE) ND 0.017 2 p/m- Xylene 0.016 0.009 2 Ethyl -t -Butyl Ether (ETBE) ND 0.017 2 o-Xylene 0.0084 0.0043 2 Tert- Amyl - Methyl Ether (TAME) ND 0.026 2 Surrogates: REC (%) Control Q" Surroaates: REC ( %) Control QA91 Lilnk LmHta 1,4- Bromofluorobenzene 99 57 -129 1,2- Dichloroethane -d4 88 47 -137 Toluene -d8 104 78-156 VEW -36,•_ 06 -05- 1085 -2 . 05/16/06 ` Air_ N/A ', 05/18/06 060518L01 Parameter Result EL P—F QuPI Parameter Result RL PE 21 Benzene ND 0.0032 2 Methyl -t -Butyl Ether (MTBE) 33 3 400 Toluene 0.0082 0.0038 2 Tert-Butyl Alcohol (TBA) ND 0.012 2 Ethylbenzene ND 0.0043 2 Diisopropyl Ether (DIPE) ND 0.017 2 p/m- Xylene 0.0097 0.0087 2 Ethyl -t -Butyl Ether (ETBE) ND 0.017 2 o-Xylene 0.0046 0.0043 2 Tert- Amyl - Methyl Ether (TAME) ND 0.026 2 Surroaates: REC (%) Control Qupj Surroaates: REC ( %) Control LI Limits Llmh 1,4- Bromofluorobenzene 95 57 -129 1,2- Dichloroethane -d4 90 47 -137 Toluene -d8 95 78-156 VEWatA ^ 06 -05 -10853 05/16/06= Air: N/A 05N8106 0605181-01 Paramete Re ul RL DF Qual Parameter Result al. DF Qua[ Benzene ND 0.0016 1 Methyl -t -Butyl Ether (MTBE) 0.20 0.03 4 Toluene 0.0067 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene ND 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p/m- Xylene 0.0074 0.0043 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene 0.0032 0.0022 1 Tert- Amyl -Methyl Ether (TAME) ND 0.013 1 Surrogates: REC Control Qu@( Surroaates: REC (%) Control Q1 Limi s Lim' 1,4- Bromofluorobenzene 94 57 -129 1,2- Dichloroethane -d4 101 47 -137 Toluene-08 103 78-156 W4 RL - Reporting Limit , DF - Dilution Factor , Qua[ - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 L7 alscience nvironmental L aboratories, Inc. Analytical Report Page 11 of 21 0 t, r .t. Delta Environmental Consultants, Inc. Date Received: 05/17/06 911 South Primrose Avenue, Unit K Work Order No: 06 -05 -1085 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -15 Units: ug /L Project: 4050 Gosford Rd., Bakersfield, CA Page 2 of 4 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Prepared Analyzed QC Batch ID VEV1bd6 "` 06 -0510854 05/16/06 At N/A _ 05/19/06 0605191-01 Parameter Result EL pE QuW Parameter Result L DE Qiial Benzene ND 0.0025 1.59 Methyl -t -Butyl Ether (MTBE) 0.49 0.03 4 Toluene 0.0084 0.0030 1.59 Tert-Butyl Alcohol (TBA) ND 0.0096 1.59 Ethylbenzene 0.0036 0.0035 1.59 Diisopropyl Ether (DIPE) ND 0.013 1.59 p /m- Xylene 0.012 0.007 1.59 Ethyl -t -Butyl Ether (ETBE) ND 0.013 1.59 o-Xylene 0.0050 0.0035 1.59 Tert- Amyl - Methyl Ether (TAME) ND 0.021 1.59 Surrogates: EEC (%) Control Quid Surroaatesq EEC ( %) Control Q11w i_imlts Limits 1,4- Bromofluorobenzene 106 57 -129 1,2- Dichloroethane -d4 126 47 -137 Toluene -d8 105 78-156 VEW -SA 06 -06- 1085 -8 ' 05116/06 AI r N/A 05/18/06 0605181-01 Parameter Result RL DE Qual Parameter Est RL DE Qual Benzene ND 0.0032 2 Methyl -t -Butyl Ether (MTBE) 1.2 0.058 8 Toluene 0.0096 0.0038 2 Tert-Butyl Alcohol (TBA) ND 0.012 2 Ethylbenzene ND 0.0043 2 Diisopropyl Ether (DIPE) ND 0.017 2 p /m- Xylene 0.012 0.009 2 Ethyl -t -Butyl Ether (ETBE) ND 0.017 2 o-Xylene 0.0056 0.0043 2 Tert- Amyl - Methyl Ether (TAME) ND 0.026 2 Surrogates: EEC ( %) Control Qiial Surrogates: EEC ( %) Control Q ibik Limits 1,4- Bromofluorobenzene 100 57 -129 1,2- Dichloroethane -d4 87 47 -137 Toluene -d8 103 78-156 VEW -56 06 -05- 1085 -6° 05/16/06 Air N/A 06118/W 0605181-01 Parameter Result EL DE Qual Parameter Result aL DE Q& Benzene ND 0.0032 2 Methyl -t -Butyl Ether (MTBE) 0.64 0.04 5 Toluene 0.0076 0.0038 2 Tert-Butyl Alcohol (TBA) ND 0.012 2 Ethylbenzene ND 0.0043 2 Diisopropyl Ether (DIPE) ND 0.017 2 p /m- Xylene 0.0091 0.0087 2 Ethyl -t -Butyl Ether (ETBE) ND 0.017 2 o-Xylene ND 0.0043 2 Tert- Amyl - Methyl Ether (TAME) ND 0.026 2 Surrogates: EEC (%) Control Qggl Surrogates: EEC ( %) Control Q Limits lb2k 1,4- Bromofluorobenzene 99 57 -129 1,2- Dichloroethane -d4 91 47 -137 Toluene -d8 100 78-156 RL - Reporting Limit DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 TEL:(714) 895 -5494 FAX: (714) 894 -7501 Calscience nvironmental L aboratories, Inc. Analytical Report Page 12 of 21 C sl ACC u; Delta Environmental Consultants, Inc. Date Received: 05/17/06 911 South Primrose Avenue, Unit K Work Order No: 06 -05 -1085 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -15 Units: ug /L Project: 4050 Gosford Rd., Bakersfield, CA Page 3 of 4 Lab Sample Date Matrix Date Date QC Batch IDClientSampleNumberNumberCollectedPreparedAnalyzed VEW -1A 06-0&1085-7" 05/16/06.: Air, N/A 05/18106 0605181-01. Parameter Result RL E-) E QuAl Parameter Result RL D QLI@1 Benzene ND 0.0016 1 Methyl -t -Butyl Ether (MTBE) 0.047 0.007 1 Toluene 0.0085 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene 0.0029 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene 0.011 0.004 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene 0.0052 0.0022 1 Tert- Amyl -Methyl Ether (TAME) ND 0.013 1 Surrogates: REC f %1 Control QuW Surrogates: REC Control Q11w 1_i02its Limn;: 1,4- Bromofluorobenzene 99 57 -129 1,2- Dichloroethane-04 74 47 -137 Toluene-08 110 78-156 VEWI -1 B 06 -05-1086 -8 05/16/06 Air N/A 06/18/06 060618L01 Paramete Result L DF Qua1 Parameter Result RL DF Qual Benzene 0.0027 0.0016 1 Methyl -t -Butyl Ether (MTBE) 0.023 0.007 1 Toluene 0.0094 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene 0.0024 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene 0.011 0.004 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene 0.0044 0.0022 1 Tert- Amyl -Methyl Ether (TAME) ND 0.013 1 Surroaates: REC ( %1 Control Qiial Surrogates: REC (%) Control y Limits Limits 1,4- Bromofluorobenzene 93 57 -129 1,2- Dichloroethane-d4 56 47 -137 Toluene -d8 95 78-156 VEW -2A - `- 06 -05- 1085-9 05/16106 Air` 9 N/A- ,. 05118/06 0605181-01. Paramete Result aL DF Qual Parameter Result RL DF Qual Benzene ND 0.0016 1 Methyl -t -Butyl Ether (MTBE) 2.6 0.1 20 Toluene 0.0069 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene 0.0024 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene 0.0076 0.0043 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene 0.0032 0.0022 1 Tert- Amyl -Methyl Ether (TAME) ND 0.013 1 Surrogates: REC ( %) Control Qual Surrogates: REC Control Q-01 Litnk Limits 1,4- Bromofluorobenzene 87 57 -129 1,2- Dichloroethane -d4 93 47 -137 Toluene-08 115 78-156 RL - Reporting Limit DF - Dilution Factor Qual - Qual'fiiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 TEL:(714) 895 -5494 FAX: (714) 894 -7501 a/science nvironmental L aboratories, Inc. Analytical Report Page 13 of 21 A A C ),?. j \ c Delta Environmental Consultants, Inc. Date Received: 05/17/06 911 South Primrose Avenue, Unit K Work Order No: 06 -05 -1085 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -15 Units: ug /L Project: 4050 Gosford Rd., Bakersfield, CA Page 4 of 4 Lab Sample Date Matrix Date Date QC Batch IDClientSampleNumberNumberCollectedPreparedAnalyzed VEW -26 06 -05- 1085 -10 05/16/06 r N/A,,, 05/19/06 0605181-01 Parameter Result a j E Q gj Parameter Result EL DE Qdaj Benzene ND 0.0016 1 Methyl -t -Butyl Ether (MTBE) 0.38 0.07 10 Toluene 0.0057 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene ND 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene 0.0062 0.0043 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene 0.0025 0.0022 1 Tert- Amyl - Methyl Ether (TAME) ND 0.013 1 Surrogates: REC ( %) Control Q2W Surr ates: REC (%) Control a" Limits Limits 1,4- Bromofluorobenzene 89 57 -129 1,2- Dichloroethane -d4 102 47 -137 Toluene -d8 105 78-156 Method Blank, 097 -09 -002,877__:- N/A >.__ Air N/A 05/19106: 060519L01 Pararnete Result RL PF Qua{ Parameter Result R-L DF Qual Benzene ND 0.0016 1 Methyl -t -Butyl Ether (MTBE) ND 0.0072 1 Toluene ND 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene ND 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene ND 0.0043 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene ND 0.0022 1 Tert- Amyl -Methyl Ether (TAME) ND 0.013 1 Surroaates: REC (%) Control Quaj Surrogates: REC (%) Control Q1121 limits t-imits 1,4- Bromofluorobenzene 96 57 -129 1,2- Dichloroethan"4 101 47 -137 Toluen"8 100 78-156 Method Blank 097 -09-002 - 4,889 N/A 'T Air N/A" E 05118/06= 0605181-01 Parameter Result al. P_E QA Parameter Result Rl- PE 90-I Benzene ND 0.0016 1 Methyl -t -Butyl Ether (MTBE) ND 0.0072 1 Toluene ND 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene ND 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene ND 0.0043 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene ND 0.0022 1 Tert- Amyl - Methyl Ether (TAME) ND 0.013 1 Surrogates: REC Control Qjgj Surrogates: REC Control Qual Limk Limi 1,4- Bromofluorobenzene 93 57 -129 1,2- Dichloroethane-04 64 47 -137 Toluene -d8 95 78-156 W4 RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 Page 14 of 21 alscience nvironmental Quality Control - Duplicate t' `' aL AL aboratories, Inc. U `= Delta Environmental Consultants, Inc. Date Received: 05/17/06 911 South Primrose Avenue, Unit K Work Order No: 06 -05 -1085 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -3(M) Project: 4050 Gosford Rd., Bakersfield, CA Quality Control Sample ID Date Matrix Instrument Prepared: Date Duplicate Batch Analyzed: Number 06 -06- 1041 -1 - - Aire GC_ 13, _ N/A k 06/17/06 060517/307 Parameter Sample Conc DUP Conc RP_Q RPD CL Qualifiers TPH as Gasoline 360 360 0 0 -20 RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841 -1427 . TEL:(714) 895 -5494 . FAX: (714) 894 -7501 science iff-flvironmental L aboratories, Inc. Quality Control - LCS /LCS Duplicate Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016 -8403 Project: 4050 Gosford Rd., Bakersfield, CA Date Received: Work Order No: Preparation: Method: Page 15 of 21 A C N/A 06 -05 -1085 N/A ASTM D -1946 Date Date LCS /LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099 -03 -002 -96 Air GC 34 - N/A 05/17/06 060517L01 Parameter LCS Conc LCSD Conc RPD RPD CL Qualifiers Carbon Dioxide 5.05 5.16 2 0 -30 Oxygen + Argon 20.2 20.5 2 0 -30 Nitrogen 75.4 76.6 2 0-30 RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841 -1427 . TEL:(714) 895 -5494. FAX: (714) 894 -7501 a Znvironmental L aboratories, Inc. Quality Control - LCS /LCS Duplicate Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016 -8403 Project: 4050 Gosford Rd., Bakersfield, CA Date Received: Work Order No: Preparation: Method: Page 16 of 21 y / rC ,:-, y t N/A 06 -05 -1085 N/A ASTM D -1946 Date Date LCS /LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099 03 -002 -97, Air GC 34 N/ 05/18/06 060518L01 Parameter LCS Conc LCSD Conc RPD RPD CL Qualifiers Carbon Dioxide 5.15 5.01 3 0 -30 Oxygen + Argon 20.4 20.0 2 0 -30 Nitrogen 76.3 74.8 2 0 -30 RPD - Relative Percent Difference . CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841 -1427 . TEL:(714) 895 -5494 . FAX: (714) 894 -7501 Page 17 of 21 Galscience ,A AC, environmental Quality Control - LCS /LCS Duplicate all L aboratories, Inc. Delta Environmental Consultants, Inc. Date Received: N/A 911 South Primrose Avenue, Unit K Work Order No: 06 -05 -1085 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -15 Project: 4050 Gosford Rd., Bakersfield, CA Quality Control Sample ID Matrix Date Instrument Prepared Date Analyzed LCS /LCSD Batch Number 097 -09- 002 -4,889 . - Air GC /MS V.'- ;` 'WAS 05/18106 060518LO15 P rame er LCS %REC LCSD %REC REC CL RPD RPD CL Qualifiers Benzene 125 124 60 -156 1 0 -40 Toluene 120 123 56 -146 2 0 -43 Ethylbenzene 134 135 52 -154 1 0 -38 p /m- Xylene 121 120 42 -156 1 0 -41 o-Xylene 131 131 52 -148 1 0 -38 RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841 -1427 . TEL:(714) 895 -5494 - FAX: (714) 894 -7501 Page 18 of 21 dL alscience environmental Quality Control - LCS /LCS Duplicate aboratories, Inc. Ut i Delta Environmental Consultants, Inc. Date Received: N/A 911 South Primrose Avenue, Unit K Work Order No: 06 -05 -1085 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -15 Project: 4050 Gosford Rd., Bakersfield, CA Date Date LCS /LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 097 -09-002- 4,877. AID GCIMS,V' ' N/A 05119106, 060519L01" Parameter LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers Benzene 135 133 60 -156 2 0 -40 Toluene 130 128 56-146 2 0-43 Ethylbenzene 146 146 52 -154 0 0-38 p /m- Xylene 136 133 42 -156 2 0-41 o-Xylene 146 144 52 -148 2 0 -38 RPD - Relative Percent Difference . CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841 -1427 . TEL:(714) 895 -5494 . FAX: (714) 894 -7501 Page 19 of 21 N alscience environmental Glossary of Terms and Qualifiersa Yaboratories, Inc. R ``= u[•>.i]ii': -[ iii ,i>Rut_:1a'iltZ'1Si ili: Qualifier Definition See applicable analysis comment. 1 Surrogate compound recovery was out of control due to a required sample dilution, therefore, the sample data was reported without further clarification. 2 Surrogate compound recovery 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. 3 Recovery of the Matrix Spike or Matrix 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. 4 The MS /MSD RPD was out of control due to matrix interference. The LCS /LCSD RPD was in control and, therefore, the sample data was reported without further clarification. 5 The PDS /PDSD associated with this batch of samples was out of control due to a matrix interference effect. The associated batch LCS /LCSD was in control and, hence, the associated sample data was reported with no further corrective action required. A Result is the average of all dilutions, as defined by the method. B Analyte was present in the associated method blank. C Analyte presence was not confirmed on primary column. E Concentration exceeds the calibration range. H Sample received and /or analyzed past the recommended holding time. J Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. N Nontarget Analyte. ND Parameter not detected at the indicated reporting limit. Q Spike recovery and RPD control limits do not apply resulting from the parameter concentration in the sample exceeding the spike concentration by a factor of four or greater. U Undetected at the laboratory method detection limit. X % Recovery and /or RPD out -of- range. Z Analyte presence was not confirmed by second column or GC /MS analysis. 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 CALSCIENCE ENVIRONMENTAL LARORATORIFS_ INC_ Shell Oil Products US Chain Of Custody Record OISMUMOM V to %db 4w report, Green to FIe, Yelov and Ric to MCC L v MWOOR4440 N D N O O M N Equiva Project Manager to be Invoiced: IMGtJAIiA?1HER(98i @iYj':`': 9 7 3 31 7 21 6 167440LincolnWaySQENCEaENGINEERING DATE: Garden Grove, CA 92841 -1432 OTECHNICALSERVICESElJeffWhitworth ioiGt3iiJfgldEfSNfk PAGE: 1 ofOatmHousi'oN714) 895 -5494 (714) 894 -7501 fax 1 2 1 2 2 4 SAWLMCCWANr: Loo CODE: STE ADORM (Stnidand CRY): at.oeuDNO-, Delta Environmental Consultants KHMM 4050 Gosford Road, Bakersfield ADORMS: WF DEMERABE TO (ft—m" PeNorOast—): NO. CONSOLTANTPROIECT NO.: 911 S. Primrose Ave., Monrovia CA Ka n Thom 626- 256 -6662 kthomOdyll IPA40SOG-1PROJECTCONTACTDIVticopyNPOPRgxdto): Sampler /Geologist A Katherine Swords I Marsili Gillecriosd TELEPHONE. FAR 8-W1L: 626 2566662 maIllecriosd( !deBaenv.com / I 1 828- Z68 265 kswords0-dettaemr.com V TURNAROUND TIME (BUSINESSDAYS): 10 DAYS (3 5 DAYS O 72 HOURS O 48 HOURS O 24 HOURS O LESS THAN 24 HOURS REQUESTED ANALYSIS O LA - Rvxxa REPORT FORMAT O LIST AGENCY: FIELD NOTES: GC/MSMTBE CONFIRMATION: HIGHEST HIGHEST perBORING ALL E CorrMnedPneservativeSPECLALINSTRUCTIONSORNOTES: CHECK BOX IFEDD ISHMNEEDED y or PW Readings Please provide report in ppb and ua/L or LaboratoryNotes g o It Q Field Sample Identification SAMPLING MATS. NO OF TEMPERATURE ON RECEIPTC DATE TIME X X X ASTM 1948 for oxygen, Va r(lAi ?, p nitrogen, methane, W b carbon dioxide, and carton monoxide. VC vgw , QiW b l3 433 R «en aby' ( ) L /—• Due: ( T. : V 61 Recehae * (S ) Da/le/ THm: tt hed bY: (Siyoalve) RecWW Ey: ( Tiow: OISMUMOM V to %db 4w report, Green to FIe, Yelov and Ric to MCC L v MWOOR4440 N D N O O M N Page 21 of 21 WORK ORDER #:06 - [d [4- Ed ® ® E Cooler of SAMPLE RECEIPT FORM CLIENT: DATE: / I 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. C Temperature blank. LABORATORY (Other than Calscience Courier): C Temperature blank. C IR thermometer. Ambient temperature. CUSTODY SEAL INTACT: Sample(s): Cooler: No (Not Intact) : Not Applicable (N /A): Initial: SAMPLE CONDITION: Yes No N/A Chain -Of- Custody document(s) received with samples ......................... ....... Sampler's name indicated on COC .................. ............................... ....... Sample container label(s) consistent with custody papers ..................... ....... ....... Sample container(s) intact and good condition .... ............................... / ....... ....... Correct containers and volume for analyses requested ....................... ....... Proper preservation noted on sample label( s) ...... ............................... ....... ......._ VOA vial(s) free of headspace ......................... .............................:. ....... ....... Tedlar bag(s) free of condensation .................... ............................... ....... ....... Initia . COMMENTS: