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4050 GOSFORD ROAD (23)
SUSTAINABLE STRATEGIES FOR GLOBAL LEADERS July 30, 2007 Project No. PA405 -OG1 -X SAP 121224 Mr. Howard Wines III Environmental Services City of Bakersfield Fire Department 1715 Chester Avenue, 3`d Floor Bakersfield, California 93706 -2020 Re: SECOND QUARTER 2007 SOIL VAPOR MONITORING REPORT Texaco Service Station 4050 Gosford Road Bakersfield, California Dear Mr. Wines: On behalf of Equilon Enterprises LLC dba Shell Oil Products (SHELL), Delta Environmental Consultants, Inc. (DELTA) has prepared" this Second Quarter DE L T A 2007 Soil Vapor Monitoring Report for the above referenced 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 e Dooley DELTA) at (408) 826 -1880 or Mr. Jeff Whitwort 24- 6298. 0 !0 R. LEE DOOLEY Sincerely, y a NO. Delta Environmental Consultants, Inc. ° CERTIFIED k- S\ ONAL FO OC' e- TOM HARGETT :64 NO. 5510- it Cp 9 F 0, cc: t ,. XInogen' Envim m-1 AlWpce Hargett, PG 5510 R. Lee Dooley, CHG 183 ct Geologist Senior Hydrogeologist Second Quarter 2007 Soil Vapor Monitoring Report Mr. Jeff Whitworth, Shell Oil Products US 175 BERNAL ROAD SUITE 200 SAN JOSE, CALIFORNIA 95119 USA PHONE 800.477.7411 / 800.477.7411 FAx 408.225.8506 WWW.DELTAENV.COM July 30, 2007 Page 1 of 2 SHELL QUARTERLY STATUS REPORT Station Address: DELTA Project No.: SHELL Environmental Engin. / Phone No.: DELTA Site Manager / Phone No.: Primary Agency/Regulatory fD No.: Other Agencies to Receive Copies: 4050 Gosford Road, Bakersfield, California PA405OG -1 Jeff Whitworth / (415) 924 -6298 Lee Dooley / (408) 826 -1880 City of Bakersfield / Howard Wines III None WORK PERFORMED THIS QUARTER (SECOND - 2007): 1. Submitted First Quarter 2007 Update Report 2. Continue quarterly soil vapor sampling for Monitoring and Natural Attenuation. WORK PROPOSED FOR NEXT QUARTER THIRD - 2007): 1. Submit quarterly update report 2. Perform quarterly soil vapor sampling for Monitoring and Natural Attenuation. Current Phase of Project: Frequency of Sampling: Frequency of Monitoring Is Separate Phase Hydrocarbon Present On -site (Well #'s): Cumulative SPH Recovered to Date: SPH Recovered This Quarter: Sensitive Receptor(s) and Respective Direction(s): Current Remediation Techniques: Permits for Discharge: Approximate Depth to Groundwater: Groundwater Gradient Current Agency Correspondence: Summary of Unusual Activity: Lee Dooley Site Manager (DELTA) Remediation (Monitoring and Natural Attenuation) NA Quarterly (soil vapor) Yes ® No NA None NA Monitoring and Natural Attenuation Soil Vapor Extraction wells are currently installed on -site. None NA NA None VEW -1 A and VEW -1 B levels for TPH -G and Benzene were below detection levels again following the higher levels of last quarter. July 30, 2007 Page 2 of 2 ATTACYIED: Table 1 — Soil Vapor Sampling Analytical Data (Hydrocarbons and Fuel Oxygenates) Table 2 — Soil Vapor Sampling Analytical Data (Fixed Gases) Figure 1 — Site Location Map Figure 2 — Site Map Figure 3 — Soil Vapor Analytical Results Map Appendix A — Soil Vapor Sampling Laboratory Report and Chain -of- Custody Documents TABLES TABLE I SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES) Shell Service Station 4050 Gosford Road, Bakersfield, CA DATE BENZENE TOLUENE ETHVL BENZENE XYLENFS J.m . ...E ...- .... TSA 1111--1 ............ DIPE::: wmr ETBE: p T.."... I .. E...::. :-- I ....... - ppmf:, VEW-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 ND4.0 ND 0.00071 0.0017 0.00094 0.0038 2.0 7.1 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<30.002 ND<0.002 ND<0.002 ND<0.002 ND<0.002 7/14/2005 ND4.0 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 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 9/2812005 3.2 13 0.004 0.026 0.015 0.129 0.93 33 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<O.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<O.00050 0.00094 ND<O.00050 ND<0.0010 0.100 037 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 0.00120 0.013 0.05 ND<0.002 ND<0.002 ND<0.002 ND<0.002 8/1612006 ND4.0 ND ND<0.00050 0.0017 0.00088 0.0028 0.007 0.026 ND<0.002 ND<0.002 ND<0.002 ND<0.002 12127/2006 ND<3.0 ND ND<0.00050 0.0079 0.00160 0.0052 0.0037 0.013 ND<0.002 ND<0.002 ND<0.002 ND<0.002 3/10/2007 5-2 21 0.0023 0.0049 0.0009 0.006 0.0034 0.012 ND<0.002 ND<0.002 ND<0.002 ND<0.002 6/19/2007 ND<3.0 ND<O.00050 0.0019 0.00097 0.0073 0.0025 ND<0.002 ND<0.002 ND<0.002 ND<0.002 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 5/19/2005 ND-13.0 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 NE)4.0 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 9/282005 ND<3.0 ND 0.0019 OXI1 0.0049 0.042 0.160 0.59 ND<0.004 ND<0.004 ND<0.004 ND<0.004 10/132005 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 2f12006 ND<3.0 ND 0.00067 0.0024 ND<0.0005 ND<0.001 ND<0.002 ND<0.0072 ND<0.002 ND<X0.002 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<0.002 ND<0.002 ND<0.002 ND<0.002 8/1612006 ND<3.0 ND ND<0.0005 0.0024 0.0021 0.0068 0.0066 0.024 ND<0.002 ND<3D.002 ND<0.002 ND<D.002 121272006 ND<3.0 ND ND<O.00050 0.0071 0.0014 0.0047 0.0043 0.015 ND<0.002 ND<0.002 ND<0.002 ND<0.002 3/102007 9.1 37 0.0025 0.0063 0.0022 0.0073 0.0023 0.0093 ND<0.002 ND<0.002 ND<0.002 ND<0.002 6/192007 ND<3.0 ND<0.00050 0.0031 0.0016 0.0127 0.0036 ND<0.002 ND<0.002 ND<0.002 ND<3D.002 VEW-2A 4/142005 18 74 ND<0.002 0.0028 0.0029 0.0197 9.7 35 ND<3D.008 ND<0.008 ND<0.008 ND<0.008 51192005 20 92 0.0036 0.002 0.0011 0.00309 20 73 ND<0.002 ND<0.002 0.002 0.0022 6/202005 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 7/142005 25 102 0.00078 0.0023 ND<O.0005 0.0027 16.0 57 0.012 ND<0.002 0.0065 ND<0.002 8192005 240 994 ND<0.033 ND<0.033 ND<0.033 ND<0.065 4.0 15 ND<D.13 ND<O. 13 ND<D. 13 ND<O. 13 92912005 33 14 0.0017 0.010 0.0048 0.040 0.830 3 ND<0.004 ND<0.004 ND<0.004 ND<0.004 10/132005 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 2/112006 ND4.0 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 ND<0.0025/16/2006 ND<3.0 R-D- ND<0.00050 0.0018 0.00056 0.0025 0.720 2.6 ND<0.002 ND<0.002 ND<0.002 9/1612006 ND<3.0 ND ND<0.00050 0.0015 0.00089 0.0029 0.180 0.65 ND<0.002 ND<0.002 ND<0.002 ND<0.002 12127/2006 ND<3.0 ND ND<0.00050 0.0087 0.0014 0.0047 0.0031 0.11 ND<0.002 ND<0.002 ND<0.002 ND<0.002 3/10/2007 ND<3.0 NA 0.0015 0.0033 0.00098 0.0028 0.01 0.11 ND<0.002 ND<0.002 ND<0.002 ND<0.002 6/192007 ND<3.0 ND<0.00050 1 .0014 0005 i .0073 0059 ND<0.002 ND<0.002 ND<0.002 ND<0.002 Pagel of 4 TABLE 1 SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES) Shell Service Station 4050 Gosford Road, Bakersfield, CA DATE IPH G TPH G :: BENZENE TOLUENE; i;ETHYIr BENZENE TOTAL XYLENE$ MICE is .... M1 E:i: TBA DIEE ; ETBE TAME op VEW -2B 4/142005 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 ND4.0 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<O.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 9/282005 73 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 10/132005 ND<3.0 ND ND<D.005 0.0016 ND<0.005 ND<0.001 5.2 19 ND<0.002 ND<0.002 ND<0.002 ND<0.002 2/12006 ND<3.0 ND ND<0.00050 0.00093 ND<O.00050 ND<0.001 ND<0.002 ND<0.0072 ND<0.002 ND<0.002 ND<0.002 ND<0.002 5/162006 ND<3.0 ND ND<0.00050 0.00015 ND<0.00050 0.00014 0.100 038 ND<0.002 ND<0.002 ND<0.002 ND<0.002 81162006 ND<3.0 ND ND<O.DD050 0.0013 0.00055 0.0018 0.089 032 ND<0.002 ND<0.002 ND<0.002 ND<0.002 12272006 ND<3.0 ND ND<0.00050 0.0079 0.0014 0.0047 0.0032 0.012 ND<0.002 ND<0.002 ND<0.002 ND<0.002 3/102007 3.4 14 0.00.36 0.0059 0.0022 0.0068 ND<0.002 ND<0.0072 ND<0.002 ND<0.002 NDm.002 ND<0.002 6/192007 ND<3.0 NA ND<0.00050 0.0012 ND<O.00050 0.0021 0.0023 NA ND<0.002 ND<0.002 ND<0.002 ND<0.002 VEW -3A 4/142005 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 5/182005 75 307 0.00082 0.0027 0.0017 0.0058 76 280 ND<0.002 ND<0.002 0.012 0.011 6/202005 1,600 6,557 0.059 ND<0.01 ND<0.01 NDm.01 53 190 0.23 ND<0.04 ND<0.04 ND<0.04 7/142005 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 NDm.02 8/92005 2,200 9,016 ND<0.31 ND<0.31 ND<0.31 NDm.63 52 190 ND<1.3 ND<1.3 ND<1.3 ND<1.3 9282005 100 410 ND<0.005 0.0062 ND<0.005 0.0285 32.0 110 0.087 ND<0.02 ND<0.02 ND<0.02 10/132005 55 225 ND<0.0075 0.019 ND <0.0075 ND<0.015 34.0 120 0.054 ND<0.015 ND<0.015 ND<0.015 7112006 8.4 34 ND<0.0010 0.0013 ND<0.0010 ND<0.0020 7.7 28 ND<0.004 ND<0.004 ND<0.004 ND<0.004 5/162006 73 30 NDa0.0010 0.0013 ND<0.0010 ND<0.0020 7.7 28 ND<0.004 ND<0.004 ND<0.004 ND<0.004 8/162006 3.8 16 ND<0.0010 0.0022 0.0013 0.0045 1.5 5.6 ND<0.004 ND<0.004 ND<0.004 ND<0.004 12272006 ND4.0 ND ND<D.00050 0.0074 0.0032 0.011 1.2 43 ND<0.002 ND<0.002 ND<0.002 ND<0.002 3/102007 ND<3.0 NA 0.002 0.0024 ND<0.0020 ND<O.0020 0.29 1.0 ND<0.008 ND<0.008 ND<0.008 ND<0.008 6/192007 ND<3.0 NA 1 0.002 0.0023 0.0016 0.0058 042 NA ND<0.002 ND<0.002 ND<0.002 ND<0.002 VEW -3B 4/142005 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 5/182005 9.4 39 0.00085 0.0017 0.0015 0.0052 11 38 ND<0.002 NDm.002 ND<0.002 ND<0.002 6/202005 18 74 0.001 0.0021 0.0014 0.011 12 44 ND<0.002 ND<0.002 0.003 ND<0.002 7/142005 17 70 0.001 0.0013 ND<0.0005 0.0016 19 68 ND<0.002 ND<0.002 ND<0.002 NDm.002 8/92005 10 41 ND<0.002 0.003 ND<0.002 ND<O.OD4 8.6 31 NDm.008 ND<0.008 ND<0.008 ND<0.008 9282005 73 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<0.018 10/132005 9.2 38 ND<0.001 0.0031 ND<0.00I ND<0.002 10.0 36 ND<0.004 NDm.004 ND<D.004 ND<0.004 2112006 6.4 26 NDm.0010 0.0014 ND<0.0010 ND<0.0020 63 23 NDa0.004 ND<0.004 ND<O.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<O.OD4 ND<0.004 ND<0.004 8116/2006 83 34 ND<0.0010 0.0019 0.0011 0.0037 8 29 ND<0.004 ND<0.004 ND<0.004 ND<0.004 12272006 9.4 39 ND<0.0010 0.0067 0.0031 0.011 12 42 ND<0.004 ND<0.004 NDm.004 ND <O.OD4 3/102007 6.5 27 ND<0.002 NDa0.002 ND<0.002 ND<0.002 6.2 23 ND<30.090 ND<0.080 ND<0.080 ND<0.080 6/192007 ND<3.0 NA I ND<0.00050 0.0011 ND<0.00050 0.0019 63 NA ND<0.002 ND<0.002 ND<0.002 ND<0.002 Page 2 of 4 TABLE 1 SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES) Shelf Service Station 4050 Gosford Road, Bakersfield, CA 1 4/14/2005 (1 9/28/2005 10/13/200' 2/1/2006 5/16/2006 j/ O05 (2 1. 4/14/2005 (5 It 5/18/2005 6(20/2005 7/14/2005 8/9/2005 9 /28/2005 10/13/200! 2/1 /2006 5/16/2006 8/16/2006 12/27 /200( 3/10/2007 6/19 /2007 VEW -5A 4/14/2005 5/182005 6/20/2005 7/14/2005 8/9/2005 9 /28/2005 17/27/2006 ND<3.0 ND<3.0 43 ND4.0 85 33 ND<3.0 ND<3.0 ND4.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND<3.0 ND ND 18 ND ND 14 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND41.004 NDa).004 ND<0.004 0.0087 039 ND<0.005 NDc0.005 ND43.005 NDQ3.005 O.57 ND<0.005 ND43.005 ND<0.005 NDa3.005 ISO 0.00058 0.0016 0.0013 0.0059 0.94 0.0017 0.0013 0.00068 0.0036 0.15 0.0012 0.0016 NDQ3.0005 0.003 0.17 ND<0.002 0.0027 ND<0.002 ND41.004 0.041 ND<0.001 0.0074 0.0025 0.0207 0.052 ND<0.002 0.0025 ND43.002 ND<0.004 0.058 ND<0.00050 0.00093 ND<0.00050 ND<0.0010 0.090 ND<0.00050 0.0018 NDa0.0010 0.0017 0.055 ND<0.00050 0.0015 0.00099 0.0032 0.022 NDQ3.00050 0.011 0.0059 0.019 0.026 ND<0.002 0.0024 ND<0002 ND<0.002 0.012 ND<0.00050 0.00076 ND<0.00050 0.00100 ND43.002 0.0019 0.0017 0.0058 0.083 0.30 ND<3.0 ND ND4).00050 0.0064 0.0029 ND<0.002 0.0021 0.0025 0.0156 l3 ND<O 004 ND41.004 NDQ3.004 ND<0.004 13 ND<0.004 ND<0.004 ND43.004 0.0081 1.2 0.00067 0.0012 0.0013 0.0054 0.0054 0.00067 0.0016 0.00074 0.005 0.13 0.00092 0.0013 NDQ3.0005 0.0018 ND<O 002 ND<0.002 0.0039 ND<0.002 ND41.004 037 ND<0.002 0.0075 0.0036 0.0295 0.25 ND43.001 0.0026 NDQ3.001 ND<0.002 0.034 NDQ3.00050 0.0010 ND<0.00050 ND<0.0010 0.012 ND<0.00050 0.0022 0.00084 0.0027 0.130 ND<3.00050 0.0013 0.00086 0.0027 0.029 0.00074 0.012 0.0068 0.022 0.013 ND<0.002 NDQ3A02 ND41.002 NDQ3.002 ND43.008 1.4 ND<0.016 ND43.016 ND<0.016 ND<0.016 2.0 ND<0.016 ND<0.016 ND<0.016 ND<0.016 53 NDQ3.02 ND<0.02 ND43.02 ND41.02 14 ND<0.002 ND<0.002 NDQ3.002 ND<0.002 0.53 ND<0.002 NDQ3.002 NDQ3.002 NDa0.002 0.61 ND<0.002 ND<0.002 ND43.002 ND<0.002 0.15 ND<0.008 ND<0.008 NDQ3.008 ND<0.008 0.19 ND<0.004 NDQ).004 0.018 ND43.004 0.21 ND<0.008 ND43.008 ND<O.008 ND43.008 033 ND<0.002 ND<0.002 NDQ3.002 NDQ3.002 OZO ND<0.002 ND<0.002 ND<0.002 NDQ3.002 0.080 ND4 ND<0.002 NDQ3.002 ND43.002 0.092 72 NDQ3.002 ND<O 007 ND<0.002 ND<0.002 4.5 ND<0.008 NDCD.008 NDQ3.008 ND<0.008 4.8 ND<0.016 ND<0.016 ND43.016 ND43.016 4.4 ND<0.016 ND<0.016 NDQ3.016 NDQ3.016 0.019 ND<0.002 ND43.002 NDq).002 NDQ3.002 0.47 ND<0.002 ND<0.002 NDQ).002 ND<0.002 41.0072 ND<0.002 ND<0.002 ND43.002 NDQ3.002 1.4 ND43.008 ND<0.008 NDQ3.008 NDQ3.008 0.91 ND41.008 NDQ3.008 NDaD.008 ND<O.008 0.12 ND<0.008 ND43.008 ND43.008 ND<0.008 0.044 ND41.002 ND<O.002 NDa1.002 ND<0.002 0.49 NDQ3.0032 ND43A032 NDQ3.0032 ND43.0032 0.10 ND<0.0032 ND43.0032 ND<0.0032 ND<0.0032 0.048 ND<O 002 ND<O 002 ND41.002 ND43.002 89 365 ND<0.013 0.022 ND<0.013 ND43.013 46 170 40 164 0009 0.003 0.0016 0.0056 55 200 440 1803 0.013 ND<0.005 ND<0.005 0.0316 430 16 92 377 0.0012 0.0017 ND43.0005 0.0018 1.2 4.4 480 1,967 ND43.063 ND<0.063 NDQ3.063 ND<O. 13 3.0 11 62 254 ND43.002 0.0072 0.0047 0.036 1.7 6.1 20 82 ND43.002 0.0022 NDQ3.002 ND<0.004 2.2 7.8 ND<3.0 ND ND<O.00050 0.0011 ND<0.00050 ND<0.0010 13 4.8 NDa.0 ND ND<0.0010 0.0026 ND41.0010 0.0028 0.320 1.2 ND<3.0 ND ND<O.00050 1 0.0019 0.0017 0.0058 0.083 0.30 ND<3.0 ND ND4).00050 0.0064 0.0029 0.0095 0.021 0.071 ND<3.0 ND ND<0.002 0.0023 ND<0.002 ND<0.002 0.011 0.031 NS NS NS NS NS NS NS NS 0.014 ND43.002 0074 0.0045 ND<0.02 ND43.02 ND43.02 ND41.02 0.0095 NDQ3.002 0.0038 ND<0.002 ND<0.25 ND<0.25 ND<0.25 ND<0.25 ND41.008 ND<0.008 NDQ3.008 ND<0.008 NDQ3.008 ND<0.008 ND41.008 ND<0.008 ND43.002 ND43.002 ND<0.002 NDQ3.002 NDQ3.004 ND<0.004 ND<0.004 ND<0.004 NDQ3.002 NDQ3.002 I ND41.002 ND<0.002 ND43.002 I ND41.002 I ND<0.002 I ND<O 002 Page 3 of 4 TABLE SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES) Shell Service Station 4050 Gosford Road, Bakersfield, CA VIEW -5B 31 110 0.032 ND<0.016 ND<0.0164/14/2005 17 70 ND<0.004 ND<0.004 ND<0.004 51182005 ND<3,0 ND 0.00062 0.0016 0.0013 6/202005 23 94 0.00063 0.0011 ND<0.0005 7/142005 ND<3.0 ND 0.00069 0.0015 ND<.0005 8/92005 24 98 ND<O.002 0.0025 ND<0 .002 9282005 24 98 ND<0.001 0.0051 0.0023 10/132005 10 ND ND<0.001 0.0001 ND<0.001 2112006 NDGS.0 ND ND<0.00050 0.0011 ND <O.0005( 5/16/2006 ND<3.0 ND ND<0.001 0.0020 ND<0.0010 8/162006 ND<3.0 ND ND<0.00050 0.0017 0.0011 121272006 NDf .0 ND ND<0.00050 0.0073 0.0023 3/102007 ND<3.0 ND 0.00290 ND<0.002 ND<0.002 6/192007 NS NS NS NS NS Notes: NS NS NS NS TPH-G Concentration (up/I) = TPH-G concentration (Ppmv) x le x 100 p/mole x mole/24.4 I x l06 up18 ND - Not detected NS - Not sampled NA - Not available ppm - parts per million ug/L - micrograms per liter TPH-G - Total petroleum hydrocarbons as gasoline MTBE - Methyl -tertbutyl ether TBA - Tert-butyl alcohol DIPE - Di- isopropyl ether ETBE - Ethyl tert-butyl ether TAME - Tert-amyl methyl ether ND<0.004 31 110 0.032 ND<0.016 ND<0.016 ND<0.016 0.0045 0.015 0.053 ND<0.002 ND<0.002 ND<0.002 ND<0.002 0.00262 15 53 0.02 ND<0.002 ND<0.002 ND 0.002 0.001 0.0031 0.011 ND<0.002 ND<0.002 ND<0.002 ND<0.002 ND<0.004 33 120 0.02 ND<0.008 ND<0.008 ND<0.008 0.0185 24 85 0.0046 ND<0.004 0.0041 ND<0.004 ND<0.002 13 46 ND<0.002 ND<0.002 ND<0.002 ND<0.002 ND<0001 ND<.002 ND <0.0072 ND<0.002 ND<0.002 ND<0.002 ND<0.002 0.0021 0.180 0.64 ND<0.004 ND<0.004 NIN! 4 ND<0.004 0.0035 0.011 0.040 ND<0.004 ND<0.004 NDQ1.004 ND<0.004 0.0080 ND<0.002 ND <0.0072 ND<0.002 ND<0.002 ND<0.002 ND<0.002 ND.002 ND<0.002 ND<0.029 ND<0.002 ND<0.002 ND<0.002 ND.002 NS NS NS NS NS NS NS Page4 of4 TABLE 2 SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA DATE XX Nitrogen ij... . ...9... noxid ... a. rb....o..... . n.... . :.D...i.o...x....i ........... 2 F-m ............. ..... 2 .... VEW-IA 4/14/2005 10.1 79.7 ND ND 10.1 5/18/2005 12.6 79.5 ND ND 7.9 6/20/2005 10.1 80.5 ND ND 9.4 7/14/2005 103 79.1 ND ND 10.6 8/9/2005 10.0 78.9 ND ND 11.1 9/28/2005 10.9 76.9 ND ND 12.2 10/13/2005 123 79.0 ND ND 8.8 2/1/2006 12.8 79.6 ND ND 7.6 5/16/2006 14.1 79.8 ND ND 6.11 8/16/2006 14.1 79.4 ND ND 6.50 12/27/2006 15.1 79.4 ND ND 5.45 3/8/2007 183 78.8 ND ND 2.88 6/19/2007 15.8 79.0 ND ND 5.21 VEW-1B 4/14/2005 10.4 79.8 ND ND 9.8 5/18/2005 12.6 79.7 ND ND 7.7 6/20/2005 10.2 80.4 ND ND 9.4 7/14/2005 10.8 793 ND ND 9.9 8/9/2005 10.3 78.8 ND ND 10.9 9/28/2005 11.2 77.0 ND ND 11.8 10/13/2005 11.0 79.6 ND ND 9.4 2/1/2006 12.9 79.9 ND ND 7.2 5/16/2006 14.2 79.9 ND ND 5.85 8/16/2006 13.7 79.6 ND ND 6.72 12/27/2006 15.0 79.6 ND ND 5.41 3/8/2007 18.2 78.9 ND ND 2.87 6/19/2007 1 15.9 1 79.2 ND ND 4.96 Page 1 of 5 TABLE 2 SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA DATE Oxygen N...itrogen. Methane Carbon de,. Carbon Dioxide O W CZC ) VEW -2A 4/14/2005 83 80.9 ND ND 10.9 5/18/2005 10.1 80.3 ND ND 9.5 6/20/2005 7.0 80.9 ND ND 12.2 7/14/2005 8.6 79.6 ND ND 11.8 8/9/2005 7.2 79.1 ND ND 13.6 9/28/2005 16.0 77.5 ND ND 6.4 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 639 8/16/2006 13.0 79.5 ND ND 7.51 12/27/2006 14.6 79.4 ND ND 6.06 3/8/2007 15.9 79.0 ND ND 2.97 6/19/2007 15.9 78.7 ND ND 5.39 VEW -2B 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 10.5 793 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 8/16/2006 13.7 79.7 ND ND 6.68 12/27/2006 14.7 79.6 ND ND 5.68 3/8/2007 18.1 78.9 ND ND 2.97 6/19/2007 18.0 78.7 ND ND 3.31 Page 2 of 5 TABLE SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA DATE Oxygen N....i...t...r... . o:... . gem . Ai.t.h...a ...n... ... . .......... 11111 '41...A.....r.....b.... o.. n.... Carbon id6:::*.::.::.::.::.:.:::. : Oz) ..... CO) (C CO) 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 8/16/2006 11.1 79.1 ND ND 9.81 12/27/2006 21.5 77.8 ND ND 0.69 3/8/2007 15.3 78.2 ND ND 6.47 6/19/2007 14.9 78.5 ND ND 6.64 VEW-3B 4/14/2005 8.1 80.6 ND ND 113 5/18/2005 9.9 80.4 ND ND 9.7 6/20/2005 7.9 80.7 ND ND 11.4 7/14/2005 9.4 79.4 ND ND 11.2 8/9/-2005 83 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 8/16/2006 12.6 79.4 ND ND 8.05 12/-27-/2006 14.4 79.5 ND ND 6.10 3/8/2007 15.7 79.1 ND ND 5.22 6/19/2007 15.0 78.8 NQ NQ ---------- 6.13 Page 3 of 5 TABLE SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA DATE .Ozygen Nitrogen Methane n:: onoxI.d ......... .. C....ar.* . ..... 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 8/16/2006 13.0 79.1 ND ND 7.96 12/27/2006 14.2 79.1 ND ND 6.64 3/8/2007 15.1 78.7 ND ND 6.14 6/19/2007 14.7 78.5 ND ND 6.78 VEW4B 4/14/2005 (1 MM) 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 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 8/16/2006 13.6 79.9 ND ND 6.51 12/27/2006 14.8 79.7 ND ND 5.47 3/8/2007 15.7 79.4 ND ND 4.93 6/19/2007 1 15.3 1 79.1 1 ND ND 5.62 Page 5ofu SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA xxx- 10/13/2005 7.7 79.8 ND ND 12.6 5/16/2006 12.9 79.7 ND ND 7.44 8/16/2006 11.4 79.5 ND ND 9.13 12/27/2006 14.0 79.2 ND ND 6.83 6/19/2007 NS NS NS NS NS 10/13/2005 10.8 79.8 ND ND 9.4 5/16/2006 14.2 79.9 ND ND 5.86 8/16/2006 13.0 79.8 ND ND 7.24 12/27/2006 14.9 79.6 ND ND 5.50 6/19/2007 NS NS NS NS NS ND - Not detected Page 5ofu FIGURES JAShdR_Shell SiteMW050Gosford RoaRWooiio64 Repons12007 -07- XJC_Seeand Qesner2007 QMR \Second Qnena 2007QMR4050 Gosforddx M r vi 119°87.000' w TH it TWO mep printed on 11/2=N from -Cellf rms.Um" and `urm*d.tpp' t 19 *06 -000' w 119'05.000' W W.-SO4 12'3'04.070' 119•' 6.000' w 119o05.w Y ptabd ew.l ar>' oxo aem a o.m la ltel>s er t•M. mro•++ h' s z aP M g2 O i DELTA SHELL OIL PRODUCTS US ENVIRONMENTAL SHELL SERVICE STATION CONSULTING INC. BAKERSFIELD, CALIFORNIA FIGURE 1 CALIF. SITE LOCATION MAP SITE 4050 GASFORD ROAD BAKERSFIELD, CALIFORNIA 119107.000'W r N O tr 60O Q a Z Wco 0 o y M r vi 119°87.000' w TH it TWO mep printed on 11/2=N from -Cellf rms.Um" and `urm*d.tpp' t 19 *06 -000' w 119'05.000' W W.-SO4 12'3'04.070' 119•' 6.000' w 119o05.w Y ptabd ew.l ar>' oxo aem a o.m la ltel>s er t•M. mro•++ h' s z aP M g2 O i DELTA SHELL OIL PRODUCTS US ENVIRONMENTAL SHELL SERVICE STATION CONSULTING INC. BAKERSFIELD, CALIFORNIA FIGURE 1 CALIF. SITE LOCATION MAP SITE 4050 GASFORD ROAD BAKERSFIELD, CALIFORNIA X 0 vc4 I 1 I CAR 0 I WASH I I I I I I PLANTER I I VEW -1 YEW -5 A B NA NA NA 1/A NA NA NA NA NA NA NA NA NA NA VEW -5 1 ice/ i VEW- 41 LOCATION: ND<3.0 NO I I w,' H C LYE I I I B: ND<0.50 ND<0.50 I 1 I CAR 0 I WASH I I I I I I PLANTER I I VEW -1 YEW -5 A B NA NA NA 1/A NA NA NA NA NA NA NA NA NA NA VEW -5 1 ice/ i VEW- 41 LOCATION: ND<3.0G. ND<3.0 w,' H C LYELOCATION: AA B B: ND<0.50 ND<0.50 T: 0.76 1.11E: ND<0.50 ND<0.50 2 i X: 1.0 2.16 MTBE: ND<2.0 23 TBA ND<2.0 ND<2.0 i UST VEW -3 (M) B: ND<0.50 NO<0.50 I VEW -3 LOCATION: A B 1.9 3.1 E TPH-G: ND<3.0 ND<3.0 X: 7.3 12.7 8: 1.6 ND<0.50 2S 3.8 TBA: ND<2.0 ND<2.0 T: 23 1.1 E: 1.8 ND<0.50 X: 5.8 1.89 IATBE: 42 630 Tat ND<2.0 ND<2.0 DISPENSERJ ISLAND w,' H C LYELOCATION: AA B TPH -G: ND<3.0 ND<3.0 B: ND<0.50 NO<0.50 T: 1.9 3.1 E 0.87 1.6 X: 7.3 12.7 MTBE: 2S 3.8 TBA: ND<2.0 ND<2.0 LOCATION: A B TPH -G: ND<3.0 ND<3.0 B: ND<0.50 ND<0.50 T: 1.4 1.2 E: 0.50 ND <0.50 X: 3.9 213 MTBE: 5.9 2.3 TBA ND<2.0 ND <2.0 N W O E S LEGEND VEW -1A NESTED VAPOR WELL LOCATION AN DESIGNATION TPH -g = TOTAL PETROLEUM HYDROCARBON - GASOLINE (ppm) B - BENZENE (ug /L) T = TOLUENE (ug /L) E - ETHYLBENZENE (ug /L) X = TOTAL XYLENE (ug /L) WFBE = METHYL TERTIARY BUM ETHER (ug /L) TBA - TERTIARY BUM ALCOHOL (ug /L) NA = NOT ANALYZED 0 30 60 SCALE IN FEET SHELL SERVICE STATION BAKERSFIELD, CALIFORNIA FIGURE 3 SOIL VAPOR ANALYTICAL RESULTS 4050 GOSFORD ROAD BAKERSFIELD. CALIFORNIA APPENDIX A SOIL VAPOR SAMPLING LABORATORY REPORT AND CHAIN-OF- CUSTODY DOCUMENTS alscience nvironmental aboratories, Inc. July 02, 2007 Katherine Swords Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016 -8403 Page 1 of 22 r ACCp,7` Subject: Calscience Work Order No.: 07 -06 -1528 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 6/20/2007 and analyzed in accordance with the attached chain -of- custody. Unless otherwise noted, all analytical testing was accomplished in accordance with the guidelines established in our Quality Systems Manual, applicable standard operating procedures, and other related documentation. The original report of subcontracted analysis, if any, 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, Calscience Environmental Laboratories, Inc. Don Burley Project Manager CA -ELAP ID: 1230 0 NELAP ID: 03220CA 0 CSDLAC ID: 10109 0 SCAQMD ID: 93LA0830 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 4 !/science Z nvironmental 9 aboratories, Inc. Case Narrative for 07 -06 -1528 Page 2 of 22 F +CCn Please note that the samples were transferred from Tedlar bags to Summa canisters on 06/22/07 to extend the holding time from 72 hours to 14 days. 7440 Lincoln Way, Garden Grove, CA92841 -1427 • TEL:(714) 895 -5494 • FAX:(714) 894 -7501 RL - Reporting Limit , DF - Dilution Factor , Qual - Qua] ifiers WA 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 Page 3 of 22 alscience A .a environmental Analytical Report A• aboratories, Inc. Delta Environmental Consultants, Inc. Date Received: 06/20/07 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 Monrovia, CA 91016 -8403 Preparation: N/A Method: ASTM D -1946 Units: v Project: 4050 Gosford Rd., Bakersfield, CA Page 1 of 2 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID VE -1A ° j 07-06 -1628 1 06H9/67 Ali' - GC 34` NIA 06/20/07 ,,. 970620L01,; Parameter Result RL DF Qual Parameter Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon 15.8 0.500 1 Carbon Dioxide 5.21 0.500 1 Nitrogen 79.0 0.500 1 Carbon Monoxide ND 0.500 1 07 -06- 1528 -2 06119107 Alr GC 34 "SN/A 06120/07" 070620L01 Parameter Resu RI_ DF Quall Parameter Resu Rl- DF Qual Methane ND 0.500 1 Oxygen + Argon 15.9 0.500 1 Carbon Dioxide 4.96 0.500 1 Nitrogen 79.2 0.500 1 Carbon Monoxide ND 0.500 1 VE -2A 07 -06- 1628 -3 y 06/19/07 ;; Air `- GC 34 NIA 06120/07 070620L01 u Parameter Result RL DF Qual Parameter Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon 15.9 0.500 1 Carbon Dioxide 5.39 0.500 1 Nitrogen 78.7 0.500 1 Carbon Monoxide ND 0.500 1 VE413 07 -06- 1528 -4 ", 1 06119107' Air : GC 34 z N/A r_,. -: 06120/07 ;e 070626L01, Parameter Result RL DF Qual Parameter Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon 18.0 0.500 1 Carbon Dioxide 3.31 0.500 1 Nitrogen 78.7 0.500 1 Carbon Monoxide ND 0.500 1 07 -06- 1528 -b 06119/07 Alr GC 34 N/A `.06120107 ,` 070620L01 a Parameter Resul DE Qual Parameter Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon 14.9 0.500 1 Carbon Dioxide 6.64 0.500 1 Nitrogen 78.5 0.500 1 Carbon Monoxide ND 0.500 1 VE -0B. -, ,i; ° 07 -06 -1628-0 06/19/07x1' Alr,;` GC 34 N/A 06/21 /07- 070621L01 "` Parameter Result RL DF Qual Parameter Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon 15.0 0.500 1 Carbon Dioxide 6.13 0.500 1 Nitrogen 78.8 0.500 1 Carbon Monoxide ND 0.500 1 VEDA* 3 - T 07-06-1628-7 06/19/07 , ; Air T, GC 34, A . NIA "21/07r"_'7013211 1-01 Parameter R su RL DF Qual Parameter Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon 14.7 0.500 1 Carbon Dioxide 6.78 0.500 1 Nitrogen 78.5 0.500 1 Carbon Monoxide ND 0.500 1 RL - Reporting Limit , DF - Dilution Factor , Qual - Qua] ifiers WA 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 J; alscience nvironmental L aboratories, Inc. Analytical Report Page 4 of 22 r1 A, CCCRp Delta Environmental Consultants, Inc. Date Received: 06/20/07 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 Monrovia, CA 91016 -8403 Preparation: N/A Method: ASTM D -1946 Units: %v Project: 4050 Gosford Rd., Bakersfield, CA Page 2 of 2 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID VE B ' Y, 07 -06- 1528 -8' "` . "." 06/19/07` ` `ry Alr GC 34 WA, ° " 06121107-i "; 070621L01' Parameter Result RL DF Qual Parameter Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon 15.3 0.500 1 Carbon Dioxide 5.62 0.500 1 Nitrogen 79.1 0.500 1 Carbon Monoxide ND 0.500 1 Method Blank 099-03-002-314. W " NIA Air.-,. GC 34-,: N/A it, ` 06/20107: 070620L01 Parameter Result RL DF Quail Parameter Resu RL DF Qual Methane ND 0.500 1 Oxygen + Argon ND 0.500 1 Carbon Dioxide ND 0.500 1 Nitrogen ND 0.500 1 Carbon Monoxide ND 0.500 1 Method Blank - e 099-03-002-315. NIA Alr, GC 34 NIA- 06121107 -- 070621L01tta. Parameter Result RL DF Qual Parameter Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon ND 0.500 1 Carbon Dioxide ND 0.500 1 Nitrogen ND 0.500 1 Carbon Monoxide ND 0.500 1 RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 1science Z=nvironmentai iff A. aboratories, Inc. Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016-8403 Analytical Report Date Received: Work Order No: Preparation: Method: Page 5 of 22 A I C 06/20/07 07-06-1528 N/A EPA TO-3 (M) Project: 4050 Gosford Rd., Bakersfield, CA Page 1 of 2 Lab Sample Date Date Date Client Sample Number Number Collected Matrb( Instrument Prepared Analyzed QC Batch ID 07.706 1528_1 06119/0j. r GC 13 N/A 06120107,, 0706201-02', 4PE-74- Air,r Parameter Result RL DF Qual Units TPH as Gasoline ND 3.0 1 pprn (V/V) VIE 13---i- 07-06-1628-2 06119/07 Ale GC 13 N/A 0612010V- 0706201.02;,--, Parameter Result RL DF Qual Units TPH as Gasoline ND 3.0 1 pprn (VfV) Vt-2A 07-06-1528-3 06119107 Air- GC 13 WA 06120/,07 0706201.02 Parameter Result RL DF Qual Units TPH as Gasoline ND 3.0 1 pprn (WV) G OW2010VE-2121, 07-06-15284 06119107 Airr C 13 KIA 076620L02'' 4' Parameter Result RL DF Qual Units TPH as Gasoline ND 3.0 1 ppm (WV) VE-3A 07-06-1528-5 061i9/67 "Air - GC 13 NW - 06120 /07sr 07062OL02 Parameter Result RL DF Qual Units TPH as Gasoline ND 3.0 1 pprn (V/V) VERB 0706-16286— 0.6119107 06/20/07 0706201.02Air -G , Parameter Result RL DF Qual Units TPH as Gasoline ND 3.0 1 pprn (V/V) 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 6 of 22 alscience r •, nvironmental Analytical Report aboratories, Inc. Delta Environmental Consultants, Inc. Date Received: 06/20/07 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 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 Instrument Prepared Analyzed QC Batch ID vE7A 07 -06- 1528 -7 06/19/07 Air GC 13,- N/A 06120107. 070620L02 Parameter Result RL DF Qual Units TPH as Gasoline ND 3.0 1 ppm (v/v) VERB 07 -06- 1528 -8 06/18/07 ' Air GC 13. N/A 06120107 0706201-02' -° Parameter Result RL DF Qual Units TPH as Gasoline ND 3.0 1 ppm (vN) MetfiodBlank 098 -01-005 -907 M/A Air GC 13', N/A 06/20107. 070620L02 Parameter Result R DF Qual Units TPH as Gasoline ND 3.0 1 ppm (WV) 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 7 of 22 alscience N ACC,, environmental Analytical Report « o A. aboratories, Inc. " u Delta Environmental Consultants, Inc. Date Received: 06/20/07 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 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 Matr'oc Instrument Date Date QC Batch IDClientSampleNumberNumberCollectedPreparedAnalyzed VE -1A 07-06 -1528 1m 06/19/07 Air GC/MS D67-- ' NIA : ` 06128107, 0706281-01 Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Toluene 1.9 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 Ethylbenzene 0.87 0.50 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 p/m- Xylene 4.6 1.0 1 Tert-Amyl -Methyl Ether (TAME) ND 2.0 1 o-Xylene 2.7 0.50 1 Ethanol ND 5.0 1 Methyl -t -Butyl Ether (MTBE) 2.5 2.0 1 0.50 1 Ethanol Surrogates: REC ( °61 Control Qual Surrogates: REC ( %) Control Qual Limits Limits REC ( °,5) 1,4- Bromofluorobenzene 107 57 -129 Surrogates: 1,2- Dichloroethane-d4 91 47 -137 Qual Toluene-08 105 78-156 Limits VE -1B " 1,4- Bromofluorobenzene 07-06 -1528 2 ` 06119107 Alr GC/MS DD. ° IVIA- _- 06/29/07 , 0706281-01 I Parameter Resu RL DF Qual Parameter Result RL DF Qual Benzene ND 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Toluene 3.1 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 Ethylbenzene 1.6 0.50 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 p /m- Xylene 8.2 1.0 1 Tert- Amyl -Methyl Ether (TAME) ND 2.0 1 o-Xylene 4.5 0.50 1 Ethanol ND 5.0 1 Methyl -t -Butyl Ether (MTBE) 3.6 2.0 1 Surrogates: REC ( °,5) Control Qual Surrogates: REC ( %) Control Qual Umb Limits 1,4- Bromofluorobenzene 107 57 -129 1,2- Dichloroethane-04 89 47 -137 Toluene-d8 107 78-156 VE -2A , 07 -06- 1528 -3: 06119/07 'Air GC/MS DD . ,NINA 06/29/07 0706281-01 Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.50 1 Tert -Butyl Alcohol (TBA) ND 2.0 1 Toluene 1.4 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 Ethylbenzene 0.50 0.50 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 p /m- Xylene 2.5 1.0 1 Tert- Amyl -Methyl Ether (TAME) ND 2.0 1 o-Xylene 1.4 0.50 1 Ethanol ND 5.0 1 Methyl -t -Butyl Ether (MTBE) 5.9 2.0 1 Surrogates: REC ( %) Control Qual Surrogates: REC (%) Control Qual Limits Limits 1,4- Bromofluorobenzene 107 57 -129 1,2- Dichloroethane-d4 89 47 -137 Toluene -d8 106 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 alscience C_nvironmental A• aboratories, Inc. Analytical Report Page 8 of 22 N ACCo,' Delta Environmental Consultants, Inc. Date Received: 06/20/07 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 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 Instrument Prepared Analyzed QC Batch ID 77771 n _ 07-06-15284 06H9/07 Alr,, GC/t)IIS DD = W A 06/29/07 0708281-01 Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Toluene 1.2 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 Ethylbenzene ND 0.50 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 p /m- Xylene 1.4 1.0 1 Tert- Amyl -Methyl Ether (TAME) ND 2.0 1 o-Xylene 0.73 0.50 1 Ethanol ND 5.0 1 Methyl -t -Butyl Ether (MTBE) 2.3 2.0 1 Surrogates: REC M Control Qual Surrogates: REC ( %) Control Qual Limits Limits 1,4- Bromofluorobenzene 109 57 -129 1,2- Dichloroethane -d4 88 47 -137 Toluene-d8 105 78-156 YE-3A7 07 -08- 1628;5 0708281-01 , fr 06119107. .` Air,, GC/MS 1013. ;N/A . 06129107' Parameter Result RL DF Qual Parameter Result RL DF Quail Benzene 1.6 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Toluene 2.3 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 Ethylbenzene 1.6 0.50 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 p /m- Xylene 3.9 1.0 1 Tert- Amyl -Methyl Ether (TAME) ND 2.0 1 o-Xylene 1.9 0.50 1 Ethanol ND 5.0 1 Methyl -t -Butyl Ether (MTBE) 42 2.0 1 Surrogates: REC ( %) Control Qual Surrogates: REC ( %) Control Qual Limits Lim" 1,4- Bromofluorobenzene 112 57 -129 1,2- Dichloroethane -d4 85 47 -137 Toluene -d8 106 78-156 a VE -0BL; r a -. _ 07 -08- 1528 -6 gipO6H9/07 ' "' Alr FGC/MS DD " ''N/A 06129/07, 0706281-01 Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Toluene 1.1 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 Ethylbenzene ND 0.50 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 p /m- Xylene 1.3 1.0 1 Tert- Amyl -Methyl Ether (TAME) ND 2.0 1 o-Xylene 0.59 0.50 1 Ethanol ND 5.0 1 Methyl -t -Butyl Ether (MTBE) 630 80 40 Surrogates: REC (°,6) Control Qual Surrogates: REC ( °6) Control Clual Limits Limits 1,4- Bromofluorobenzene 108 57 -129 1,2- Dichloroethane -d4 86 47 -137 Toluene-08 105 78-156 U4 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 22 alscience N ,p C C 0 9; , environmental Analytical Report r v z A. aboratories, Inc. na Delta Environmental Consultants, Inc. Date Received: 06/20/07 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 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 Instrument Prepared Analyzed QC Batch ID VEDA A 07 -06 -1528 7`- '"'061191071- _- Air m . GCIMS DD ` - W q `i 06/29/07 _., 0706281.01 , Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Toluene 0.76 0.50 1 Diisopropyl Ether (DIPS) ND 2.0 1 Ethylbenzene ND 0.50 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 p /m- Xylene 1.0 1.0 1 Tert- Amyl - Methyl Ether (TAME) ND 2.0 1 o-Xylene ND 0.50 1 Ethanol 9.2 5.0 1 Methyl -t -Butyl Ether (MTBE) ND 2.0 1 Surrogates: Surrogates: REC M Control Qual Surrogates: REC M Control Qual Limi s Limits Limi s Limits 1,4- Bromofluorobenzene 1,4- Bromofluorobenzene 108 57 -129 1,2- Dichloroethan"4 1,2- Dichloroethane-04 86 47 -137 Toluene-d8 Toluene-08 104 78-156 Method Blenk;_ VErtB m 097-09- 002 -0,050 07 -06- 1528 -8 06/19/07 ° Air GC/MS DD N/A 06129107 0706281.01 Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Toluene 1.1 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 Ethylbenzene ND 0.50 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 p/m- Xylene 1.4 1.0 1 Tert- Amyl -Methyl Ether (TAME) ND 2.0 1 o-Xylene 0.76 0.50 1 Ethanol ND 5.0 1 Methyl -t -Butyl Ether (MTBE) 23 2.0 1 1 Surrogates: REC ( %) Control Qual Surrogates: REC ( %) Control Qual Qual Limi s Limits Limi s Limits 1,4- Bromofluorobenzene 107 57 -129 57 -129 1,2- Dichloroethan"4 84 47 -137 47 -137 Toluene-d8 104 78-156 78-156 Method Blenk;_ m 097-09- 002 -0,050 NIA' ' , Air . ' GC/MS DDS -; :_ NW., 06/28/07 ,=0706281.01 Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Toluene ND 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 Ethylbenzene ND 0.50 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 p /m- Xylene ND 1.0 1 Tert- Amyl -Methyl Ether (TAME) ND 2.0 1 o-Xylene ND 0.50 1 Ethanol ND 5.0 1 Methyl -t -Butyl Ether (MTBE) ND 2.0 1 Surrogates: REC (%) Control Qu I Surrogates: REC ( %) Control Qual Limits Limits 1,4- Bromofluorobenzene 96 57 -129 1,2- Dichloroethane-04 64 47 -137 Toluene -d8 101 78-156 U4 RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 9i alscience nvironmental L aboratories, Inc. Analytical Report Page 10 of 22 v Cc Delta Environmental Consultants, Inc. Date Received: 06/20/07 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 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 UA RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 Lab Sample Date Date Date Client Semple Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID wMethod Blank : 097-09 002 6,051 a NIA = Alr GC/MS DD V NIA 07/01/07 070701L01 e Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Toluene ND 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 Ethylbenzene ND 0.50 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 p /m- Xylene ND 1.0 1 Tert-Amyl -Methyl Ether (TAME) ND 2.0 1 o-Xylene ND 0.50 1 Ethanol ND 5.0 1 Methyl -t -Butyl Ether (MTBE) ND 2.0 1 Surrogates: REC ( %) Control Qual Surrogates: REC % Control Qual Limits Limits 1,4- Bromofluorobenzene 104 57 -129 1,2- Dichloroethane -d4 68 47 -137 Toluene -d8 100 78-156 UA 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 11 of 22 D a /science y N hC r, F` nvironmental Analytical Report o 1• aboratories, Inc. Delta Environmental Consultants, Inc. Date Received: 06/20/07 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 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 Matrbr Instrument Prepared Analyzed QC Batch ID VE -1A, ;;", ., 07 -06- 1528,1". 06N9/07 Alr;r, GC/MS DD :.: NIA 06/28,/07w,, 070628L01 Parameter Result RL DF Qual Parameter Result RL DF Quall Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Toluene 0.0071 0.0019 1 Diisopropyl Ether (DIPE) ND 0.0084 1 Ethylbenzene 0.0038 0.0022 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 p /m- Xylene 0.020 0.0043 1 Tert-Amyl- Methyl Ether (TAME) ND 0.013 1 o-Xylene 0.012 0.0022 1 Ethanol ND 0.0094 1 Methyl -t -Butyl Ether (MTBE) 0.0089 0.0072 1 Surrogates: REC (°,6) Control Qual Surrogates: REC t°,61 Control Qual Qual Limits Limits Limits Limits 1,4- Bromofluorobenzene 107 57 -129 57 -129 1,2- Dichloroethane -d4 91 47 -137 47 -137 Toluene,A8 105 78-156 78-156 VE -18 07 -06- 1528 -2 06/19/07 Air, GC/MS DD NIA z 06/29/07 070628L01 Parameter Result RL DF Qual Parameler Result R DF Qual Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Toluene 0.012 0.0019 1 Diisopropyl Ether (DIPE) ND 0.0084 1 Ethylbenzene 0.0071 0.0022 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 p /m- Xylene 0.036 0.0043 1 Tert- Amyl - Methyl Ether (TAME) ND 0.013 1 o-Xylene 0.020 0.0022 1 Ethanol ND 0.0094 1 Methyl -t -Butyl Ether (MTBE) 0.013 0.0072 1 Surrogates: REC M Control Qual Surrogates: REC M Control Qual Limits Limits 1,4- Bromofluorobenzene 107 57 -129 1,2- Dichloroethane-04 89 47 -137 Toluene -d8 107 78-156 07- 06-1528 -3:, j& 06/19107.. Alr,¢ , GC/MS DID N/A - 06/29/07 oa 070628L01;+, Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Toluene 0.0054 0.0019 1 Diisopropyl Ether (DIPE) ND 0.0084 1 Ethylbenzene 0.0022 0.0022 1 Ethyl-t -Butyl Ether (ETBE) ND 0.0084 1 p /m- Xylene 0.011 0.0043 1 Tert- Amyl -Methyl Ether (TAME) ND 0.013 1 o-Xylene 0.0061 0.0022 1 Ethanol ND 0.0094 1 Methyl -t -Butyl Ether (MTBE) 0.021 0.0072 1 Surrogates: REC (°,Ul Control u I Surrogates: REC M Control Qual Limits Limits 1,4- Bromofluorobenzene 107 57 -129 1,2- Dichloroethane -t4 89 47 -137 Toluene -d8 106 78-156 WA 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 12 of 22 Ceiscience , , AC-C , nvironmental Analytical Report Aaboratories, Inc. u u z Delta Environmental Consultants, Inc. Date Received: 06/20/07 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 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 Instrument Prepared Analyzed QC Batch ID VE -26 07-06 - 1628 -4- . i 06119/07; Air GC/MS DD , ; N/A ,, - 06/29107,; . 070626L01 _ Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Toluene 0.0044 0.0019 1 Diisopropyl Ether (DIPE) ND 0.0084 1 Ethylbenzene ND 0.0022 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 p /m- Xylene 0.0062 0.0043 1 Tert - Amyl -Methyl Ether (TAME) ND 0.013 1 o-Xylene 0.0032 0.0022 1 Ethanol ND 0.0094 1 Methyl -t -Butyl Ether (MTBE) 0.0083 0.0072 1 Surrogates: REC (°,61 Control Qual Surrogates: REC M Control Qual Limits Limits Limits Limits 1,4- Bromofluorobenzene 1,4- Bromofluorobenzene 109 57 -129 1,2- Dichloroethane -d4 1,2- Dichloroethane-d4 88 47 -137 Toluene -d8 Toluene-48 105 78-156 VE-313 VE-3A 07 -06 -1628-0 07 -06- 1628 -6 06%19/07 - ' Air, GC/MS DD_ 'x NIA 06/29/07. 070628L01 "' Parameter Restj RL DF Qual Parameter Result RL DF Qual Benzene 0.0051 0.0016 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Toluene 0.0086 0.0019 1 Diisopropyl Ether (DIPE) ND 0.0084 1 Ethylbenzene 0.0068 0.0022 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 p /m- Xylene 0.017 0.0043 1 Tert- Amyl -Methyl Ether (TAME) ND 0.013 1 o-Xylene 0.0084 0.0022 1 Ethanol ND 0.0094 1 Methyl -t -Butyl Ether (MTBE) 0.15 0.0072 1 Surrogates: REC M Control Qual Surrogates: REC M Control Qual Qual Limits Limits Limits Limits 1,4- Bromofluorobenzene 112 57 -129 57 -129 1,2- Dichloroethane -d4 85 47 -137 47 -137 Toluene -d8 106 78-156 78-156 VE-313 07 -06 -1628-0 06118107•''- . Air GC/MS DD N/A 06/29/07 . 070628L01:: Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Toluene 0.0040 0.0019 1 Diisopropyl Ether (DIPE) ND 0.0084 1 Ethylbenzene ND 0.0022 1 Ethyl4 -Butyl Ether (ETBE) ND 0.0084 1 p /m- Xylene 0.0056 0.0043 1 Tert- Amyl -Methyl Ether (TAME) ND 0.013 1 o-Xylene 0.0026 0.0022 1 Ethanol ND 0.0094 1 Methyl -t -Butyl Ether (MTBE) 2.3 0.29 40 Surrogates: REC (°,U) Control Qual Surrogates: REC M Control Qual Limits Limits 1,4- Bromofluorobenzene 108 57 -129 1,2- Dichloroethane -d4 86 47 -137 Toluene-d8 105 78-156 RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers h" 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 iscience nvironmental A. aboratories, Inc. Analytical Report Page 13 of 22 z Delta Environmental Consultants, Inc. Date Received: 06/20/07 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 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 Date Date Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID VEDA" _ " _ , n 07 -064528 7,- : F 06/19/07 Air- GC/MS.DD,.,_, -NIA 06/29/07 " g070628L01 . Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Toluene 0.0028 0.0019 1 Diisopropyl Ether (DIPE) ND 0.0084 1 Ethylbenzene ND 0.0022 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 p /m- Xylene 0.0045 0.0043 1 Tert- Amyl -Methyl Ether (TAME) ND 0.013 1 o-Xylene ND 0.0022 1 Ethanol 0.017 0.0094 1 Methyl -t -Butyl Ether (MTBE) ND 0.0072 1 Surrogates: REC M Control Qual Surrogates: REC M Control Qual Limits Limits 1,4- Bromofluorobenzene 108 57 -129 1,2- Dichloroethane -d4 86 47 -137 Toluene -d8 104 78-156 VE-4B a 07 -06- 1528 -8 06/19/07 Air _ GC/MS DD ; N/A 08/29/07 n 070628L01 h Parameter Result RL DF Qual Parameter Resu RL DF Qual Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Toluene 0.0040 0.0019 1 Diisopropyl Ether (DIPE) ND 0.0084 1 Ethylbenzene ND 0.0022 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 p /m- Xylene 0.0059 0.0043 1 Tert- Amyl -Methyl Ether (TAME) ND 0.013 1 o-Xylene 0.0033 0.0022 1 Ethanol ND 0.0094 1 Methyl -t -Butyl Ether (MTBE) 0.083 0.0072 1 Surrogates: REC M Control Qual Surrogates: REC M Control Qual Limits Limi s 1,4- Bromofluorobenzene 107 57 -129 1,2- Dichloroethane -d4 84 47 -137 Toluene-d8 104 78-156 Method`Blank a 097-09 -002 -0,060' GC/MS DD -N/A "`! 06/26/07 0706281-01r* N/A Air' A Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.0016 1 Tert -Butyl Alcohol (TBA) ND 0.0061 1 Toluene ND 0.0019 1 Diisopropyl Ether (DIPE) ND 0.0084 1 Ethylbenzene ND 0.0022 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 p /m- Xylene ND 0.0043 1 Tert- Amyl -Methyl Ether (TAME) ND 0.013 1 o-Xylene ND 0.0022 1 Ethanol ND 0.0094 1 Methyl -t -Butyl Ether (MTBE) ND 0.0072 1 Surrogates: REC M Control Qual Surrogates: REC (°,U) Control Qual Limits Limits 1,4- Bromofluorobenzene 96 57 -129 1,2- Dichloroethane-d4 64 47 -137 Toluene-08 101 78-156 U4 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 22 alscience p ,, isanvironmental Analytical Report A• aboratories, Inc. Delta Environmental Consultants, Inc. Date Received. 06/20/07 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 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 Date Date Client Sample Number Number Collected Matrix Instrument prepared Analyzed QC Batch ID Method Blank 097 -09- 0026,051: N/A AW GC/MS DD NIA-', 07/01107;° 070701L01'- Parameter Result RL Benzene ND 0.0016 Toluene ND 0.0019 Ethylbenzene ND 0.0022 p /m- Xylene ND 0.0043 o-Xylene ND 0.0022 Methyl -t -Butyl Ether (MTBE) ND 0.0072 Surrogates: REC M Control 1 1 Limits 1,4- Bromofluorobenzene 104 57 -129 Toluene -d8 100 78-156 DF Qual Parameter Result RL DF Qual 1 Tert -Butyl Alcohol (rBA) ND 0.0061 1 1 Diisopropyl Ether (DIPE) ND 0.0084 1 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 1 Tert- Amyl - Methyl Ether (TAME) ND 0.013 1 1 Ethanol ND 0.0094 1 1 ual Surrogates: REC t%1 Control Qual Limits 1,2- Dichloroethane -d4 68 47 -137 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 alscience nvironmental A. aboratories, Inc. Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016 -8403 Quality Control - Duplicate Project: 4050 Gosford Rd., Bakersfield, CA Date Received: Work Order No: Preparation: Method: Page 15 of 22 1 u 06/20/07 07 -06 -1528 N/A EPA TO -3 (M) Date Date Duplicate Batch Quality Control Sample ID Matrbc Instrument Prepared: Analyzed: Number VEd6' - Air 9 GC 13 ,. N/A (06120/07 `' 070620D02 Parameter Sample Conc DUP Conc RPD RPD CL Qualifiers TPH as Gasoline ND ND NA 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 ID alscience nvironmental L aboratories, Inc. Quality Control - LCS /LCS Duplicate Delta Environmental Consultants, Inc. Date Received: 911 South Primrose Avenue, Unit K Work Order No: Monrovia, CA 91016 -8403 Preparation: Method: Project: 4050 Gosford Rd., Bakersfield, CA Page 16 of 22 acco N/A 07 -06 -1528 N/A ASTM D -1946 Date Date LCS /LCSD Batch Quality Control Sample ID Matrix Instrument Prepared AnaVLed Number 099 - 03-00214._ Air ... GC, 34 IV/A 'N rg 06@0/07. ` : 070620L01, =a. Parameter LCS Conc LCSD Cone RPD RPD CL Qualifiers Carbon Dioxide 5.123 5.133 0 0 -30 Oxygen + Argon 20.31 20.26 0 0 -30 Nitrogen 75.52 75.42 0 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 /science nvironmental L aboratories, Inc. Quality Control - LCS /LCS Duplicate Page 17 of 22 iS ACC0 Delta Environmental Consultants, Inc. Date Received: N/A 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 Monrovia, CA 91016 -8403 Preparation: N/A Method: ASTM D -1946 Project: 4050 Gosford Rd., Bakersfield, CA Date Date LCS/LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 099 -03-002316 -_r , GC 34 NIAL4, 06121/07 0706211L01,:'t Parameter LCS Conc LCSD Conc RPD RPD CL Qualifiers Carbon Dioxide 5.207 5.127 2 0-30 Oxygen + Argon 20.48 20.24 1 0 -30 Nitrogen 76.21 75.33 1 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 18 of 22 Ea c r, alscience „ , , nvironmental Quality Control - LCS /LCS Duplicate JL aboratories, Inc. Delta Environmental Consultants, Inc. Date Received: N/A 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 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 -6,060 Aire- -- = GCIMSDo t'_ NW'. 06/28/07 tee 070628LOl -' Parameter LCS %REC LCSD %REC REC CL RPD RPD CL Qualifiers Benzene 108 110 60-156 3 0-40 Toluene 108 111 56 -146 3 0-43 Ethylbenzene 114 115 52 -154 1 0-38 p /m- Xylene 108 111 42 -156 3 0-41 o-Xylene 119 122 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 22 alscience a CO3 environmental Quality Control - LCS /LCS Duplicate aboratories, Inc. u u Delta Environmental Consultants, Inc. Date Received: N/A 911 South Primrose Avenue, Unit K Work Order No: 07 -06 -1528 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 -6,051 v Air; GC/I IS DD tr/Ay 07/01/07. ". 070701L01 ; Parameter LCS %REC LCSD %REC REC CL RPD RPD CL Qualifiers Benzene 105 105 60-156 0 0.40 Toluene 107 105 56-146 2 0-43 Ethylbenzene 114 113 52 -154 1 0-38 p /m- Xylene 110 108 42 -156 2 0-41 o-Xylene 119 119 52 -148 0 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 20 of 22 a alscience nvironmental Glossary of Terms and QualifiersV F aboratories, Inc." Work Order Number: 07 -06 -1528 ualifier 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. ifflwimwn. 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 CALSCIENCE ENVIRONMENTAL LABORATORIES, INC. Shell Oil Products US Chain Of Custody Record DISTRIDUTION: Wh b wHh an&[ mpal Green to Fie. Yepow wd Ph* to MwL 10MG= Radon N_ O h N N Equiva Project Manager to be invoiced: IIINUd(SAIL'p`( 7440 Lincoln Way 9 7 31 3 7 2 6 6 Garden Grove, CA 92841- 1432IIC!i: JeffWhitworth s:SiP oi;C#iMtIHi Ailtt 51• , ..• PAGE l of 714) 895 -5494 (714) 8947501 fax 1 2 1 2 2 4 SAMPLINGCOMPANr: LOGCODs WIM ADDRESS (Steelend QW; m - Delta Environmental Consultants KHMM 4050 Gosford Road, Bakersfield ADDRESS EDFDONERABLETO (R q",MPlpr> DMW t ON NO.: E WL: CONSULTAK PROJEU Ro, 911 S. Primrose Ave., Monrovia CA Denise Alvarez: 16"26 256-6662r Ita PA4050G -1PROXCTCORMTOWd.W rPOFRlp dbK Sampler /Geologist fl/1 t e'1 CA811SEfle4 x :EKatherineSwords / Marsili Glllecriosd I Eric Frohnapple TELQPHONE; FAX E4AA1 626-26"66226666 266.256263 mDillecriosd(@del(aenv.com kswordsCd)deltaenv.com / 5 aefrohnaDOle(dtdettaenv.com'... TURNAROUND TIME (BUSINESS DAYS): 2 to DAYS sDAYS 72 Hmms 48 HouRs 24 Howls UE S THAN 24 Holm REQUESTED ANALYSIS LA - RLYQCB RBouFORMAT USTAGENCY: S FIELD NOTES: Container/Preservative GC/MS MTBE CONFIRMATION: HIGHEST HIGHEST perBORING ALL SPECIAL INSTRUCTIONS OR NOTES: CHECK BOXIF EDD IS NOT NEEDED LJ g orPID Readings Please provide report in ppb and uq/L a f Laboratory Notes o m b A t v E 7 m 10C m LL CFieldSampleIdentificationSAMPLINGor CONT. TEMPERATURE ON RECEIPT C DATE TIMEPR : y(0 X X X ASTM 1946 for oxygen, VE -1A V 2 VE -16 I JIM Vapor 2 X X X nitrogen, methane, Z" X X X carbon dioxide, andVE -2A V r 2 VE -26 iZ V r 2 X X X carbon monoxide. VE -3A vapor 2 X X X X X XVE -3131 Vapor 2 V 2 X X X ji[' v V 2 x x x Vapor 2 x x x Re Vapor 2 X x x id br isNyebBe Re .MWa: rowl Pe) Duds: Time: / r JA ReBnpdNedb/. (Sip R ) /' C Defe[ 1Lno: I i ReWp br. (SWU=9) renim) Dale: Tone: i DISTRIDUTION: Wh b wHh an&[ mpal Green to Fie. Yepow wd Ph* to MwL 10MG= Radon N_ O h N N Page 22 of 22 8n". - UEWORKORDER #:07 - - R t l% lam Cooler © of O SAMPLE RECEIPT FORM CLIENT: TEMPERATURE - SAMPLES RECEIVED BY: CALSCIENCE COURIER: Chilled, cooler with temperature blank provided. Chilled, cooler without temperature blank. Chilled and placed in cooler with wet ice. Ambient and placed in cooler with wet ice. y,'- Ambient temperature. C Temperature blank. DATE: 6 ,6/020/o LABORATORY (Other than Calscience Courier): C Temperature blank. C IR thermometer. Ambient temperature. Initial: A —" " CUSTODY SEAL INTACT: Sample(s): Cooler: No (Not Intact) : Not Present: Initial:, SAMPLE CONDITION: Chain -Of- Custody document(s) received with samples ......................... Yeses 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.... COMMENTS: No N/A Initial:_