Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
4050 GOSFORD ROAD (6)
SUSTAINABLE STRATEGIES FOR GLOBAL LEADERS January 24, 2008 Project No. PA4050G 1 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: FOURTH QUARTER 2007 STATUS UPDATE REPORT Texaco Service Station 4050 Gosford Road Bakersfield, California Dear Mr. Wines: On behalf of Equilon Enterprises LLC dba Shell Oil Products (SHELL), Delta t D E LTA Consultants (DELTA) has prepared this Fourth Quarter 2007 Status Update 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 perfonned. 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. Inogen' envi—m-1 AM—, If you have any questions regarding this site, please contact Mr. Ross Inouye DELTA) at (626) 256 -6662 or Mr. Randy Orlowski (SHELL) at (949) 360- 1111. Sincerely, Delta Consultants Ross Inouye Project Manager Ross Williams, P.G 6327 Senior Project Geologist Attachment: Fourth Quarter 2007 Status Update Report cc: Mr. Randy Orlowski, Shell Oil Products US AL GFO` O ROSS A. CL M AMS NO. 6327 911 SOUTH PRIMROSE AVENUE SUITE K MONROVIA, CALIFORNIA 91016 USA PHONE 626.256.6662 / 800.477.7411 FAx 626.256.6263 WWW.DELTAENV.COM January 24, 2008 SHELL QUARTERLY STATUS UPDATE REPORT Station Address: 4050 Gosford Road, Bakersfield, California DELTA Project No.: PA4050G 1 X SHELL Environmental Engin. / Phone No.: Randy Orlowski / (949) 360 -1111 DELTA Site Manager / Phone No.: Ross Inouye/ (626) 256 -6662 Primary Agency /Regulatory ID No.: City of Bakersfield / Howard Wines III Other Agencies to Receive Copies: None WORK PERFORMED THIS QUARTER (FOURTH - 2007): 1. Submitted Third Quarter 2007 Status Update Report 2. Continued quarterly soil vapor sampling for Monitoring and Natural Attenuation. WORK PROPOSED FOR NEXT QUARTER FIRST - 2008): 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 Yes ® No On -site (Well #'s): tCumulative SPH Recovered to Date: NA SPH Recovered This Quarter: None Sensitive Receptor(s) and Respective The Arvin Edison Canal is located approximately 790 feet east ofthe Direction(s): site location. Buena Vista Lake Bed is located approximately 1020 feet. Northeast ofthe site. The nearest municipal well (CBK 15 -01) is located approximately 3,909 feet southwest ofthe site. General Site Lithology: Soils encountered on site consists primarily of fine- grained sand to approximately 65 feet bgs. A sandy to silty clay layer was encountered above approximately 12 feet bg. 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: October 8, 2004 SHELL QUARTERLY STATUS REPORT (CONT.) Site History: January 24, 2008 Case Opening 2000 Onsite Assessment 2001, 2003 Offsite Assessment NA Passive Remediation 2004 Active Remediation NA Closure NA Summary of Unusual Activity: None ATTACHED: Table 1 — Soil Vapor Sampling Analytical Data (Hydrocarbons and Fuel Oxygenates) Table 2 — Soil Vapor Sampling Analytical Data (Fixed Gases) Figure I — 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 Documentation F. m TABLES m m m m m m m m m m m m m m m m m m m TABLE I SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBOVS AND FUEL OXYGENATES) Shell Service Station 4050 Gosford Road, Bakersfield, CA BE-NZEN BENZENE.j:.: L XYLE- E& VEW-1A ND<3.0 NO ND<0.0005 0.0022 m. 0.002 V'Z-ZE 0.0146 2"A 4 W! jAa 4/14/2005 1.1 4.0 ND<0.002 ND<O.002 ND<0.002 ND<0.002 5/18/2005 ND<3.0 NO 0.00071 0.0017 0.00094 0.0038 2.0 7.1 ND<0.002 ND<0.002 ND<0.002 ND<0.002 612012005 ND<3.0 NO 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 8198005 ND<3.0 ND ND<0.002 0.0054 ND<0.002 Nl><0.004 0.7 2.5 ND<0.008 ND<0.008 ND<0.008 ND<0.008 9/288005 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 1011312005 ND<3.0 NO 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 2/18006 ND<3.0 NO 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 5/1612006 ND<3.0 NO 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 81168006 ND<3.0 NO ND<0.00050 0.0017 0.00088 0.0028 0.007 0.026 ND<0.002 ND<O.002 ND<0.002 ND<0.002 12/27/2006 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 3/108007 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 NO ND<0.00050 0.0019 0.00087 0.0073 0.0025' ND<0.002 ND<0.002 ND<0.002 ND<0.002 981/2007 ND4.0 ND 0.011 0.086 0.02 0.121 0.0062 0.022 ND<0.002 ND<0.002 ND<0.002 ND<0.002 12/38007 ND<3.0 NO ND<0.00050 0.003 0.00072 0.00316 0.0024 0.0087 ND<0.002_ ND<0.002 ND<0.002 ND<0,002 VEW-111 m ]§ 4/148005 ND<3.0 NO ND<0.0005 0.0035 0.0028 0m0181 1.2 4.2 ND<0.002 ND<0.002 ND<0.002 ND<O.002 5/188005 ND<3.0 NO ND<0.0005 0.0019 0.00089 0.00329 0.0023 0.0083 ND<0.002 NO<0.002 ND<0.002 ND<0.002 61208005 ND<3.0 NO ND<0.0005 0.001 ND<0.0005 0.00275 0.14 0.52 ND<O.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 8/98005 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<O.008 ND<0.008 9882005 ND<3.0 ND 0.0019 0.011 0.0049 1 0e042 0.160 0.59 ND<0.004 ND<0.004 ND<0.004 ND<0.004 10/1312005 ND<3.0 NO ND<0.0005 0.0024 ND<0.0005 ND<0.001 0.008 0M7 ND<0.002 ND<0.002 ND<0.002 ND<0.002 2/18006 ND<3.0 NO 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 5/168006 ND<3.0 NO 0.00084 0.0025 0.00056 0.0025 0.0063 0.023 ND<0.002 ND<0.002 ND<0.002 ND<0.002 ND<0.002 8/16/2006 ND<3.0 ND ND<0.0005 0.0024 0.0021 0.0068 0.0066 0M4 ND<0.002 ND<0.002 ND<0.002 ND<0.002 12878006 ND<3.0 ND ND<0.00050 0.0071 0.0014 0.0047 0.0043 0.015 ND<0.002 ND<0.002 ND<0.002 ND<0.002 3/108007 9.1 37 0.0025 0.0063 0.0022 0.0073 0.0023 0.0083 ND<0.002 ND<0.002 ND<0.002 ND<0.002 6/198007 ND<3.0 NO ND<0.00050 0.0031 0.0016 0.0127 0.0036 ND<0.002 ND<0.002 ND<0.002 ND<0.002 9/218007 ND<3.0 NO 0.019 0.091 0.028 0.12 0.0061 0,022 ND<0.002 ND<0.002 ND<0.002 ND<0.002 12/38007 ND<3.0 NO 0.00067 0.0045 0.0015 0.0067 0.003 0.011 ND<0.002 ND<0.002 ND<0.002 ND<0.002 VEW-2A iff, w 411412005 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 5/188005 20 82 0.0036 0.002 0.0011 0.00309 20 73 ND<0.002 ND<0.002 0.002 0.0022 6/2012005 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 91912005 240 984 ND<0.033 ND<0.033 ND<0.033 ND<0.065 4.6 Is ND<O. 13 ND<O. 13 ND<O. 13 NO<0. 13 9/288005 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 10/138005 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 2/18006 ND<3.0 NO 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 5/168006 ND<3.0 NO ND<O.00050 0.0018 0.00056 0.0025 0.720 2.6 ND<0.002 ND<0.002 ND<0.002 ND<0.002 8116/2006 ND<3.0 NO 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 128712006 ND<3.0 ND NE><0.00050 0.0087 0.0014 0.0047 0.0031 0.11 ND<0.002 ND<0.002 ND<0.002 ND<0.002 ND<0.0023/10/2007 ND<3.0 NO 0.0015 0.0033 0.00098 0.6-028 0.031 0.11 ND<0.002 ND<0.002 ND<0.002 61198007 ND<3.0 NO ND<0.00050 0014 0005 0073 0059 ND<0.002 ND<0.002- ND<0.002 ND<0.002 9818007 ND<3.0 TZ- 0.0076 054 014 119 028 0.10 ND<0.002 ND<0.002 ND<0.002 ND<0.002 12/3/2007 ND<3.0 NO 0.0011 0.0064 0.0012 0.0043 0.0084 0.030 ND<0.002 ND<0.002 ND<0.002 ND<0.002 Page I of 4 TABLE SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES) Shell Service Station 4050 Gosford Road, Bakersfield, CA G::: I ........ TPF{G::: BENZENE:: TOLUENE: ETIIYL -:.:..:::.T.OTAL:.`::::::R1TBE BENZE Xl IVES.......................... MI'B ... MT$E::::::::TBA::::: i::: DFPE>::: ETBE:::: TAME::: VEW -211 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 NO 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 612012005 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 NO 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 1 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 9/2812005 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 NO 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 NO 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 0.00015 ND<0.00050 0.00014 0.100 0.38 ND<0.002 ND<0.002 ND <0.002 ND <0.002 8/16/2006 ND<1.0 NO ND <0.00050 0.0013 0.00055 0.0018 0.089 0.32 ND <0.002 ND<0.002 ND <0.002 ND <0.002 12127/2006 ND<3.0 NO 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 3/100-007 3.4 14 0.0036 0.0059 0.0022 0.0068 ND<0.002 ND<0.0072 ND<0.002 ND<0.002 ND <0.002 ND <0.002 6/1912007 ND<3.0 NO ND<0.00050 0.0012 ND <0.00050 0.0021 0.0023 NA ND<0.002 ND <0.002 ND <0.002 ND<0.002 9/21/2007 ND<3.0 NO 0.00077 0.0069 0.0012 0.0081 ND <0.002 ND<0.0072 ND<0.002 ND<0.002 ND <0.002 1213/2007 ND<3.0 NO 0.0021 0.0110 0.0019 0.0070 0.041 0.15 ND <0.002 ND<0.002 0.002 ND <0.002 VEW -3A r.,.°..,,. wr p., 4 +. ND<0.002 5 4/14/2005 150 615 ND<0.02 ND<0.02 ND<0.02 ND <0.02 99 360 0.59 ND<0.08 0.08 ND<0.08 5/18/2005 75 307 0.00082 0.0027 0.0017 0.0058 76 280 ND<0.002 ND <0.002 012 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 7/1412005 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 8/9/2005 2,200 9,016 ND<0.31 ND <0.31 ND<0.31 ND <0.63 52 190 ND<I.3 ND<1.3 ND <1.3 ND <1.3 9/28/2005 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 10/13/2005 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 2/112006 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 5/16/2006 7.3 30 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 8/16/2006 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 12/27/2006 ND<3.0 ND ND<0.00050 0.0074 0.0032 0.011 1.2 4.3 ND <0.002 ND<0.002 ND<0.002 ND <0.002 3/10/2007 ND<3.0 ND 0.002 0.0024 ND<0.0020 ND<0.0020 0.29 1.0 ND<0.008 ND<0.008 ND <0.008 ND<0.008 6/19/2007 ND<3.0 ND 0.002 0.0023 0.0016 0.0058 042 NA ND<0.002 ND<0.002 ND <0.002 ND<0.002 9121/2007 ND<3.0 NO 0.01 0.056 0.016 0.132 ND<0.002 ND <0.0072 ND<0.002 ND<0.002 ND<0.002 ND <0.002 12/312007 ND<3.0 NO 0.00056 0.004 0.0011 0.0054 0.0053 0.019 ND<0.002 ND<0.002 ND<0.002 ND<0.002 VEW -36 4/1412005 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 NO<0.004 ND<0.004 ND<0.004 ND<0.004 8/16/2006 8.3 34 ND <0.0010 0.0019 0.0011 0.0037 8 29 ND<0.004 ND <0.004 ND<0.004 ND <0.004 12/27/2006 9.4 39 ND <0.0010 0.0067 0.0031 0.011 12 42 ND<0.004 ND <0.004 ND<0.004 ND<0.004 3/1012007 6.5 27 ND <0.002 ND<0.002 ND <0.002 ND<0.002 6.2 23 ND <0.080 ND<0.080 ND<0.080 ND<0.080 6/192007 ND<3.0 NA ND <0.00050 0.0011 ND<0.00050 0.0019 63 NA ND <0.002 ND<0.002 ND <0.002 ND<0.002 9/21/2007 5.7 23 0.0061 0.057 0.0092 0.088 5.9 21 ND<0.02 ND<0.02 ND <0.02 ND<0.02 12/32007 3.3 14 ND<0.020 ND <0.020 ND<0.020 ND<0.040 3.7 13 ND<0.080 ND<0.080 ND<0.080 ND<0.080 Page 2 of 4 TABLE 1 SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES) Shell Service Station 4050 Gosford Road, Bakersfield, CA i:::: D'ATE :::::< I.... i ?::TP9 =G::: I................ TPH -G::: BENZ;ENE : > TOLUENE -: ET11YL,.:: B T.OTAL::::::: l' .EN M*1BE ::: N4BE: is TBA: i::: DtPE:: >: ETBE:::: TAME: : IEW -4A ND<3.0 ND x' ND<0.004 ND<0.004 ND <0.004 0.0087 0.39 1.4 ND<0.016 a ND<0.016 ci`S 'y, ND <0.0164/14/2005 (1 MIN) 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 NIX0.002 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<0.0010 0.0017 0.055 0.20 ND <0.002 ND <0.002 ND<0.002 ND<0.002 8116/2006 ND<3.0 ND ND<0.00050• 0.0015 0.00099 0.0032 0.022 0.080 ND <0.002 ND<0.002 ND<0.002 ND<0.002 1227/2006 ND <3.0 ND ND <0.00050 0.011 0.0059 0.019 0.026 0.092 ND<0.002 ND <0.002 ND<0.002 ND<0.002 3/10/2007 ND <3.0 ND ND<0.002 0.0024 ND<0.002 ND<0.002 0.012 0.043 ND <0.008 ND <0.008 ND<0.008 ND<0.008 6/19/2007 ND<3.0 ND ND <0.00050 0.00076 ND<0.00050 0.00100 ND<0.002 NA ND <0.002 ND <0.002 ND<0.002 ND<0.002 921/2007 ND <3.0 ND 0.0082 0.077 0.014 0.121 ND<0.008 ND <0.029 ND <0.008 ND<0.008 ND<0.008 ND <0.008 12/32007 ND<3.0 ND ND <0.00050 0.0022 0.00060 0.00275 0.0054 0.019 ND<0.002 ND<0.002 ND<0.002 ND <0.002 VEW -48 x fit ' n y nQ_ a= m b`' R, W 4/142005 (I 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 4/142005 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 4/142005 (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 51182005 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 6202005 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 8/92005 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 9282005 ND<3.0 ND ND <0.002 0.0075 0.0036 0.0295 1 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 5/162006 ND<3.0 ND ND<0.00050 0.0012 0.00084 0.0027 0.130 0.49 ND <0.0032 ND <0.0032 ND<0.0032 ND <0.0032 8/162006 ND<3.0 ND ND<0.00050 0.0013 0.00086 0.0027 0.029 0.10 ND<0.0032 ND <0.0032 ND<0.0032 ND <0.0032 121272006 ND<3.0 ND 0.00074 0.012 0.0068 0.022 0.013 0.048 ND<0.002 ND<0.002 ND<0.002 ND <0.002 3/10/2007 ND<3.0 ND ND<0.002 ND<0.002 ND <0.002 ND<0.002 ND <0.008 ND <0.029 ND <0.008 ND <0.008 ND<0.008 ND <0.008 6/192007 ND<3.0 NA ND<0.00050 0.00110 ND<0.00050 0.00216 0.02300 NA ND<0.002 ND <0.002 ND<0.002 ND<0.002 9/21/2007 ND<3.0 NA 0.024 0.094 0.032 0.158 N1X0.002 ND<0.0072 ND <0.002 ND <0.002 ND <0.002 ND<0.002 12132007 4.0 16 ND<0.020 ND<0.020 ND<0.020 ND<0.040 4.7 17 ND <0.080 ND <0.080 ND <0.080 ND <0.080 VEW -5A 2' srr_"' i 89 3.:,,'(1'I;y1- x•,d:''trj:ay4; 365 ND <0.013 0.022 ND<0.013 E,..;. - ..x,.'.,..' ND<0.013 4' `:s. ':' 4/142005 46 170 0.062 ND<0.05 ND<0.05 ND<0.05 5/182005 40 164 0.0009 0.003 0.0016 0.0056 55 200 0.014 ND<0.002 0.0074 0.0045 6202005 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 7/142005 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 92812005 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 10/132005 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<0.0010 1.3 4.8 ND<0.002 ND<0.002 ND<0.002 ND <0.002 51162006 ND<3.0 ND ND<0,0010' 0.0026 ND<0.0010 0.0028 0.320 1.2 ND <0.004 ND<0.004 ND<0.004 ND<0.004 8/16/2006 ND<3.0 ND ND <0.00050 0.0019 0.0017 0.0058 0.083 0.30 ND<0.002 ND<0.002 ND<0.002 ND <0.002 12272006 ND<3.0 ND ND<0.00050 0.0064 0.0029 0.0095 0.021 0.077 ND<0.002 ND<0.002 ND<0.002 ND<0.002 3/102007 ND<3.0 ND ND<0.002 0.0023 ND<0.002 ND<0.002 0.011 0.038 ND<0. 008 ND<0.008 ND <0.008 ND<0.008 12/272006 ND<3.0 ND ND <0.00050 0.0064 0.0029 0.0095 0.021 0.077 ND<0.002 ND<0.002 ND<0.002 ND<0.002 6119/2007 NS NS NS NS NS NS NS NS NS NS NS NS 9212007 ND<3.0 ND 0.023 0.19 0.032 0.228 0.017 0.062 ND<0.002 ND<0.002 ND<0.002 ND<0.002 12/32007 ND<3.0 ND ND<0.00050 0.0024 0.00070 0.0042 0.0076 0.028 ND <0.002 ND<0.002 ND<0.002 ND <0.002 Page 3 of 4 TABLE I SOIL VAPOR SAMPLING ANALYTICAL DATA HYDROCARBONS AND FUEL OXYGENATES) Shell Service Station 4050 Gosford Road, Bakersfield, CA D'ATE:::•::::< TP9:G::: TPR- G:::::::BENZENE TOLUENE : ETBVL =:: T.OTAL:::: NI]BE ::::« MTBE::< TBA::::::: is DIPS:. BENZENE: YGENES:::::::• u. . m .: m .: m ::< :. u. m :: m i::: m :. m..: VEW -5B 70 c ND <0.004 6' ND<0.004 ND <0.004 s t*'< ND <0.0164/14/2005 17 ND<0.004 31 I10 0.032 ND<0.016 ND<0.016 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<0.002 620/2005 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 8/92005 24 98 ND<0.002 0.0025 ND<0.002 ND <0.004 33 120 0.02 ND<0.008 ND<0.008 ND <0.008 9282005 24 98 ND<0.001 0.0051 0.0023 0.0185 24 85 0.0046 ND <0.004 0.0041 ND <0.004 10/132005 10 ND N`D<0.001 0.0001 ND <0.001 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<0.00050 0.0011 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 <0.001 0.0020 ND <0.0010 0.0021 0.180 0.64 ND<0.004 ND<0.004 ND<0.004 ND <0.004 8/16/2006 ND<3.0 ND ND<0.00050 0.0017 0.0011 0.0035 0.011 0.040 ND<0.004 ND<0.004 ND<0.004 ND <0.004 12272006 ND<3.0 ND ND<0.00050 0.0073 0.0023 0.0080 ND <0.002 ND <0.0072 ND<0.002 ND<0.002 ND<0.002 ND <0.002 3/102007 ND<3.0 ND 0.00290 ND<0.002 ND<0.002 ND<0.002 ND <0.002 ND<0.029 ND<0.002 ND<0.002 ND<0.002 ND<0.002 6/192007 NS NS NS NS NS NS NS NS NS NS NS NS 3/10/2007 ND<3.0 ND 0.00290 ND<0.002 ND<0.002 ND<0.002 ND<0.002 ND<0.029 ND<0.002 ND<0.002 ND <0.002 ND<0.002 9/212007 ND<3.0 ND 0.022 0.13 0.037 0.192 0.003 0.011 ND<0.002 ND<0.002 ND<0.002 ND<0.002 12/3/2007 ND<3.0 I RD-1 0.0026 0.00091 0.0057 1 0.0034 0.0089 0.032 1 ND<0.002 ND<0.002 ND <0.002 ND <0.002 Notes: TPH -G Concentration (up/I) = TPH -G concentration ppmv) x x 100 p/mole x mole/24.4 I x 10' up/µ 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 -tert butyl ether TBA - Ten -butyl alcohol DIPE - Di- isopropyl ether ETBE - Ethyl tert-butyl ether TAME - Tert-amvl methyl ether Page 4 of 4 TABLE SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA iiATE ..... . ..... .. .. ......... ............. . O... .. .. .xyge.n-.'-.'--*--*'-. N. i.te .c4.i.-'-'-'.-.*- . o...n ...... . .o.. . ..n...a..i. ....i.d.... ..6I ..::...::. . : Carbon ...... ...:. D..i ....d . . .. .. 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 10.3 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 12.3 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 18.3 78.8 ND ND 2.88 6/19/2007 15.8 79.0 ND ND 5.21 9/21/2007 16.0 78.2 ND ND 5.80 12/3/2007 16.5 77.8 ND ND 5.67 VEW-113 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 79.3 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 15.9 79.2 ND ND 4.96 9/21/2007 15.8 78.5 ND ND 5.65 12/3/2007 15.8 77.9 ND ND 6.34 Page 1 of 6 TABLE SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA kc on CO. . .. 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/l/2006 12.3 79.7 ND ND 7.9 5/16/2006 14.0 79.6 ND ND 6.39 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 9/21/2007 15.5 78.2 ND ND 6.36 12/3/2007 16.6 77.9 ND ND 5.44 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/l/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 9/21/2007 16.0 78.5 ND ND 5.56 12/3/2007 15.8 78.0 ND ND 6.26 Page 2 of 6 TABLE 2 SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA OX.. eri::::: Yg .................. o2) ....... o .:::::::: Nit en:::: :: eo...._........._._.._._. 1Vlethane :::::::: r .:::::::: Cat b6h Moiiaicide :.. CO) ...._....._.._...._..... 0 .::::::::::: Carbon Dioxide :: : r).......... . 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/l/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 9/21/2007 14.8 77.5 ND ND 7.71 12/3/2007 16.1 77.7 ND ND 6.27 VEW -3B 4/14/2005 8.1 80.6 ND ND 11.3 5/18/2005 9.9 80.4 ND ND 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 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/l/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 ND ND 6.13 9/21/2007 15.0 78.2 ND ND 6.74 12/3/2007 15.7 77.6 ND ND 6.72 Page 3 of 6 TABLE SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA DATE ......... ... ..... I ................... H ........ ....... ... arq . . ... .... 0: VEW-4A 4/14/2005 (1 MrN) 6.9 81.5 ND ND 11.5 4/14/2005 (2 MM) 6.8 81.6 ND ND 11.6 4/14/2005 (5 NUN) 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 9/21/2007 14.4 77.9 ND ND 7.62 12/3/2007 15.9 77.5 ND ND 6.59 Page 4 of 6 TABLE SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA OX.. en:::::: 0 ly", * "I" N ..* ..... I ............ 1 .4 ' " m VEW-4B ND ND 9.84/14/2005 (1 MIN) 8.6 81.6 ND 4/14/2005 (2 MIN) 9.5 81.2 ND 4/14/2005 (5 NON) 8.7 81.7 9.7 5/18/2005 13.3 80.0 ND 6/20/2005 9.1 81.1 ND 7/14/2005 11.7 79.8 9.5 8/9/2005 9.8 79.6 ND 9/28/2005 10.2 77.8 ND 10/13/2005 10.2 80.3 5.47 2/l/2006 12.6 80.2 ND 5/16/2006 13.9 80.1 ND 8/16/2006 13.6 79.9 6.53 12/27/2006 14.8 79.7 3/8/2007 15.7 79.4 6/19/2007 15.3 79.1 9/21/2007 15.5 79.1 12/3/2007 15.2 78.2 ethane. ....... ................. . . . Car .. ...... .. C I ............ ... ND ND 9.8 ND ND 9.3 ND ND 9.7 ND ND 6.6 ND ND 9.7 ND ND 8.5 ND ND 10.6 ND ND 12.0 ND ND 9.5 ND ND 7.1 ND ND 6.07 ND ND 6.51 ND ND 5.47 ND ND 4.93 ND ND 5.62 ND ND 5.46 ND ND 6.53 Page 5 of 6 TABLE SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES) Shell Service Station 4050 Gosford Road, Bakersfield, CA DA ........... 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/l/2006 11.8 79.7 ND ND 8.5 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 3/8/2007 15.3 79.0 ND ND 5.68 6/19/2007 NS NS NS NS NS 9/21/2007 14.6 78.2 ND ND 7.20 12/3/2007 15.2 77.8 ND ND 6.97 VEW-513 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/l/2006 12.9 79.9 ND ND 7.2 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 3/8/2007 15.8 79.4 ND ND 4.80 6/19/2007 NS NS NS NS NS 9/21/2007 15.2 78.8 ND ND 6.08 12/3/2007 15.7 78.0 ND ND 6.27 Notes: ND - Not detected Page 6 of 6 I I FIGURES TOM map printed on 11/20/03 from Talifornia.tpo" and "Untitled.tpT 119 °07.000' W 119 °06.000' W 119 °05.000' W WG584 119 °04.000' W 119 °07.000' W T14 tJMN v 14' CALIF. SITE r V Z V V. 0 eMM Z g O m 0MM 119 °06.000' W 119 °05.000' w WGS64 119104.000' w o obrltr o iaooru'rrra mcoera PxkitdlmmT0P0! 02001 N,,imdOroawphieHokiitW (*vw.t"xwl%) A DELTSHELL OIL PRODUCTS US ENVIRONMENTAL SHELL SERVICE STATION A nn, CONSULTING INC. BAKERSFIELD, CALIFORNIA FIGURE 1 SITE LOCATION MAP 4050 GASFORD ROAD BAKERSFIELD, CALIFORNIA mm M.M m = m m m m mm m = mmm = x 00 0 aa 5 CAR WASH I 1 I I I I II\ PLANTER CANOPY u B a I I JI'' nH 1 G LA I II I I I I I A .B CAR WASH I 1 I I I I II\ PLANTER CANOPY u B ITS A.1 JI'' nH 1 G LA LOCATION: A .B B TPH -G: TPH -G: ND<3.0 ND<3.0 B: ND<0.0018 B: ND <0.00111 0.0084 T: E: 0.0089 0.0034 0.0030 0.025 0.0063 X: X: 0.0305 0.030 O.DO87 MTBE: 0.028 0.032 I I ND<0.0061 TBA: ND<0.0061 ND<O.D081 I I I I I I I I I I PLANTER I STATION BUILDING I VEW -5 I VEINvEw -a LOCATION: TPH - ND<3.0 4.0 I 1 B: 16 51O.00B3 ND<0.0 I I E: X: 0.0026 ND <0.087 0.0213 ND <0.35VEW -2 /i NTBE: 0.0019 TBA: NDN1ND<0.0061 <0.24 L - - -- J LIST VEW -1 VEW -3 I LOCATION: VEW -3A B TPH -C: 3.3 B: 0.0018 ND<0.064 T: O.OtS ND<0.0750.015 E: 0.0049 ND <0.087 X: 0.0407 ND <0.15 YTBE: 0.019 13 TBIL• ND<0.0061 ND<0.24 ISLAND BA.1 JI'' nH 1 G LALOCATION: 0.0035 B TPH -G: ND<3.0 ND<3.0 B: ND<0.0018 0.0021 T: 0.011 - 0.017 E: 0.0031 0.0063 X: 0.0237 0.0498 MTSE: O.DO87 0.011 TBA: ND<0.0061 ND<0.0061 Y:LShell Sites \4 \4050 Gosford\2008 -01- 154Q07 GWM Report\FIGURE 3(40S0) Corcwbztlons.dw% 1/18/20089:49:26 AM LOCATION: A B TPH -G: ND<3.0 ND<3.0 B: 0.0035 0.0070 T: 0.024 0.040 E: 0.0032 0.0084 X: 0.032 0.0525 WME: 0.030 0.15 TBA: KD<0.0061 ND <0.0061 N W O E S LEGEND VEW -1 A, NESTED VAPOR WELL LOCATION AN DESIGNATION TPH -g - TOTAL PETROLEUM HYDROCARBON - GASOLINE (ppmv) B = BENZENE (fig /L) T = TOLUENE ()q /L) E - ETHYLSENZENE (Ng /L) X = TOTAL XYLENE (yg /L) MTBE = METHYL TERTIARY BUTYL ETHER " /L) TBA = TERTIARY BUTYL ALCOHOL (.ug /L) 0 30 60 SCALE IN FEET SHELL OIL PRODUCTS US SHELL SERVICE STATION BAKERSFIELD, CALIFORNIA FIGURE 3 SOIL VAPOR ANALYTICAL RESULTS 12/3/2007 4050 GOSFORD ROAD BAKERSFIELD. CALIFORNIA APPENDIX A SOIL VAPOR SAMPLING LABORATORY REPORT AND CHAIN -OF- CUSTODY DOCUMENTATION alscience nvironmental AL aboratories, Inc. December 10, 2007 Katherine Swords Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016 -8403 Page 1 of 23 c ACCp; 2 Subject: Calscience Work Order No.: 07 -12 -0194 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 12/4/2007 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. 1 Danielle Gonsman Project Manager k"-ELAP I D . 1230 AP I D: 03220CA CSDLAC ID. 10109 SCAQMD ID: 93LA0830 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL.(714) 895 -5494 • FAX: (714) 894 -7501 1 C., alscience PEY nvironmental 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: Units: Page 2 of 23 ACC.o 12/04/07 07 -12 -0194 N/A ASTM D -1946 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 OC Batch ID I VE -1A .07- 12- 0194 -1 -B 12/03/07 . Air GC 34 NIA 12/05/07 071205L01 I Parameter ResulS B.L DIE QualQua Parameter Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon 16.5 0.500 1 Carbon Dioxide 5.67 0.500 1 Nitrogen 77.8 0.500 1 Carbon Monoxide ND 0.500 1 Nitrogen 77.9 VE -1 B Carbon Monoxide 07- 12- 0194 -2 -B 12103/07 Air GC 34 N/A 12/05/07, 071205L01 Parameter Result RL DF Qual Parameter Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon 15.8 0.500 1 Carbon Dioxide 6.34 0.500 1 Nitrogen 77.9 0.500 1 Carbon Monoxide ND 0.500 1 77.9 0.500 1 Carbon Monoxide VE -2A 0.500 1 07 -12- 0194 -3 -8 12/03/07 Air GC 34 N/A 12/05/07 0712051-01 Parameter Result R6 DF Q al Parameter Result RL PIE Q a Methane ND 0.500 1 Oxygen + Argon 16.6 0.500 1 Carbon Dioxide 5.44 0.500 1 Nitrogen 77.9 0.500 1 Carbon Monoxide ND 0.500 1 VE -2B 07- 12- 0194 -4-B 12/03107 Air GC 34 N/A 12105/07 071205L01 Parameter Result RL PIE Q&I Parameter Result RL pF 99.91 Methane ND 0.500 1 Oxygen + Argon 15.8 0.500 1 Carbon Dioxide 6.26 0.500 1 Nitrogen 78.0 0.500 1 Carbon Monoxide ND 0.500 1 VE -3A 07 -12- 0194.5 -B 12/03/07 Air _ GC 34 N/A 12/05/07 0712051-01 arameter Result RL DF Qual Paramete Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon 16.1 0.500 1 Carbon Dioxide 6.27 0.500 1 Nitrogen 77.7 0.500 1 Carbon Monoxide NO 0.500 1 VE -3B 07 -12- 0194 -6 -B 12/03107 Air GC 34 N/A 12/05/07 0712051-01 Parameter Result RL DF Qual Parameter Result RL PIE Q,I Methane NO 0.500 1 Oxygen + Argon 15.7 0.500 1 Carbon Dioxide 6.72 0.500 1 Nitrogen 77.6 0.500 1 Carbon Monoxide ND 0.500 1 VE-4A 07 -12- 0194 -7 -B 12/03107 Air GC 34 N/A 12105/07 071205L01 Parameter Result RL DF Qual Parameter Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon 15.9 0.500 1 Carbon Dioxide Carbon Monoxide 6.59 ND 0.500 0.500 1 1 Nitrogen 77.5 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 1 I., alscience nvironmental 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: Units: Page 3 of 23 A A Co 12/04/07 07 -12 -0194 N/A ASTM D -1946 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 I VE-413 07- 12- 0194 -8 -13 12103/07 Air GC 34 N/A 12/05/07 0712051-01 1 Parameter Result aL DF Dial Parameter Result RL PIE Quat Methane ND 0.500 1 Oxygen + Argon 15.2 0.500 1 Carbon Dioxide 6.53 0.500 1 Nitrogen 78.2 0.500 1 Carbon Monoxide ND 0.500 1 0.500 1 VE -5A ND 0.500 07 -12- 0194 -9 -13 12/03/07 Air GC 34 N/A 12105/07 071205L01 Parameter Result RL DF Qual Parameter Result RL DF Qual Methane ND 0.500 1 Oxygen + Argon 15.2 0.500 1 Carbon Dioxide 6.97 0.500 1 Nitrogen 77.8 0.500 1 Carbon Monoxide ND 0.500 1 0.500 1 VE -5B ND 0.500 07 -12- 0194 -10 -13 12/03/07 Air GC 34 N/A 12/05/07. 0712051-01 Parameter Result RL DF Qual Paramete Result RL DE Qual Methane ND 0.500 1 Oxygen + Argon 15.7 0.500 1 Carbon Dioxide 6.27 0.500 1 Nitrogen 78.0 0.500 1 Carbon Monoxide ND 0.500 1 Method Blank 099 -03- 002 -417 N/A Air GC 34 N/A 12/05/07 0712051-01 Paramete Result 86 DF Sail Parameter Result aL DF QuaI 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 a /science nvironrnental aboratories, Inc. Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016 -8403 IProject: 4050 Gosford Rd., Bakersfield, CA Analytical Report Date Received: Work Order No: Preparation: Method: Page 4 of 23 eta H.ccr) 12/04/07 07 -12 -0194 N/A EPA TO -3 (M) Page 1 of 2 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID VE -1A 07 -12- 0194 -1 -A 12/03107 Air GC 13 N/A 12/04/07 0712041-02 r meter Result RL PF Qom( lak TPH as Gasoline ND 3.0 1 ppm (V /V) 1VE-1B 07 -12- 0194 -2 -A 12/03/07 Air GC 13 N/A 12/04/07 0712041-02 Parameter Result RL P-E Qu l nit TPH as Gasoline ND 3.0 1 ppm (v /V) VE -2A 07.12.0194 -3 -A 12/03/07 Air GC 13 NIA 12/04/07 0712041-02 Parameter Result a QF Qua( Units TPH as Gasoline ND 3.0 1 ppm (V /V) VE -2B 07 -12- 0194.4 -A 12/03/07 Air GC 13 N/A 12/04107 0712041-02 Parameter Result RL DF Qual Units TPH as Gasoline ND 3.0 1 ppm (V /v) VE -3A 07 -12- 0194 -5 -A 12/03/07 Air GC 13 N/A 12/04/07 0712041-02 Parameter Result RL DF Qua[ yak TPH as Gasoline ND 3.0 1 ppm (V /V) VE -313 07 -12- 0194 -6 -A 12/03/07 Air GC 13 N/A 12/04/07 0712041-02 Parameter Result RL DF Qual Units TPH as Gasoline 3.3 3.0 1 ppm (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 Parameter Result RL Page 5 of 23 science TPH as Gasoline ND 3.0 1111111111111111III'_nvironmental Analytical Report 1 1. 12/03/07 Air 11 ' - aboratories, Inc. Delta Environmental Consultants, Inc. Date Received: 12/04/07 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 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 VE-4A 07.12- 0194 -7 -A 12/03/07 Air GC 13 N/A 12/04107 0712041-02 Parameter Result RL DE 911Ej units TPH as Gasoline ND 3.0 1 ppm (v /v) 1VE-4B 07 -12- 0194 -8 -A 12/03/07 Air GC 13 N/A 12/04/07 0712041-02 Parameter Result RL DF 91 Units TPH as Gasoline 4.0 3.0 1 ppm (V /V) VE -5A 07 -12- 0194 -9 -A 12/03/07 Air GC 13 N/A 12/04/07 0712041-02 Paramete Result RL DE Qual Units TPH as Gasoline ND 3.0 1 ppm (V /V) VE -5B 07.12- 0194 -10 -A 12/03/07 Air GC 13 N/A 12/04/07 0712041-02 Paramete Result RL DF Clu l Units TPH as Gasoline ND 3.0 1 ppm (V /v) Method Blank 098 -01- 005 -1,098 N/A Air GC 13 NIA 12/04/07 0712041-02 Parameter esult RL 9E Qual Uak TPH as Gasoline ND 3.0 1 ppm (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 a /science nvironmental L aboratories, Inc. Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016 -8403 IProject: 4050 Gosford Rd., Bakersfield, CA I Client Sample Number VE -1A Analytical Report Date Received: Work Order No: Preparation: Method: Units: Lab Sample Date Number Collected Matrix Instrument 07- 12- 0194 -1 -A 12/03/07 Air GC /MS K Page 6 of 23 N ACC On. 12/04/07 07 -12 -0194 N/A EPA TO -15 ppb (v /v) Page 1 of 5 Date Date epared Analyzed QC Batch ID N/A 12/05/07 0712051-01 Parameter Result RL QE Qu@j Parameter Result aL PIE Qa1 Benzene ND 0.50 1 Methyl -t -Butyl Ether (MTBE) 2.4 2.0 1 Toluene 3.0 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene 0.72 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene 2.3 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o-Xylene 0.86 0.50 1 Tert- Amyl - Methyl Ether (TAME) ND 2.0 1 Surrogates: ERC ( %) Control Qual Surrogates: REC ( %) Control Qual Limits Limits 1,4- Bromofiuorobenzene 88 57 -129 1,2- Dichloroethane -d4 86 47 -137 Toluene -d8 87 78 -156 FVE-1 07 -12- 0194 -2 -A 12/03/07 Air GC/MS K N/A 12/05/07 0712051-01 Parameter Result Rt, DF Qual Parameter Result aL DF Qual Benzene 0.67 0.50 1 Methyl -t -Butyl Ether (MTBE) 3.0 2.0 1 Toluene 4.5 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene 1.5 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene 4.9 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o-Xylene 1.8 0.50 1 Tert- Amyl - Methyl Ether (TAME) ND 2.0 1 Surrogates: REC ( %) Control Qual Surrogates: REC ( %) Control Qual imit Limits 1,4- Bromofluorobenzene 84 57 -129 1,2- Dichloroethane -d4 83 47 -137 Toluene -d8 93 78 -156 VE -2A 07 -12- 0194 -3 -A 12/03/07 Air GC /MS K N/A 12/05/07 0712051-01 Parameter Result RL DF Qual Parameter Result RL DE Qual Benzene 1.1 0.50 1 Methyl -t -Butyl Ether (MTBE) 8.4 2.0 1 Toluene 6.4 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene 1.2 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene 3.1 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o-Xylene 1.2 0.50 1 Tert- Amyl - Methyi Ether (TAME) ND 2.0 1 Surrogates: REC (%) Control Qual Surrogates: REC (%) Control Quin LLrak 1=I nk 1,4- Bromofluorobenzene 83 57 -129 1,2- Dichloroethane -d4 80 47 -137 Toluene -d8 83 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 Parameter Result Page 7 of 23 alscience Parameter t' C R DF 9" Benzene Mw= nvironmental Analytical Report Methyl -t -Butyl Ether (MTBE) 41 20 aboratories, Inc. Toluene 11 Delta Environmental Consultants, Inc. Date Received: 12/04/07 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 Monrovia, CA 91016 -8403 Preparation: N/A 1 Method: EPA TO -15 2.0 Units: ppb (v /v) Project: 4050 Gosford Rd., Bakersfield, CA 1.0 Page 2 of 5 Ethyl -t -Butyl Ether (ETBE) Lab Sample Date Date Date Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch IC 0.50 VE -2B 07- 12- 0194 -4-A 12/03/07 Air GC /MS K N/A 12/05/07 0712051-01 Parameter Result RL 9.E 9ua1 Parameter Result R DF 9" Benzene 2.2 0.50 1 Methyl -t -Butyl Ether (MTBE) 41 20 10 Toluene 11 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene 1.9 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene 5.1 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o- Xylene 1.9 0.50 1 Tert-Amyl- Methyl Ether (TAME) ND 2.0 1 Surrogates: REC ( %) Control Qual Surrogates: REC ( %) Control Qual ND 2.0 i 't Surrogates: REC ( %) Limits 1,4- Bromofluorobenzene 83 57 -129 Control 1,2- Dichloroethane -d4 82 47 -137 Toluene -d8 85 78 -156 Limits VE -3A 57 -129 07- 12- 0194.5 -A 12/03107 Air GC /MS K N/A 12/05/07 0712041-01 Parameter Result RL DF QM Paramete Result RL 2E Qual Benzene 0.56 0.50 1 Methyl -t -Butyl Ether (MTBE) 5.3 2.0 1 Toluene 4.0 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene 1.1 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene 3.9 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o-Xylene 1.5 0.50 1 Tert- Amyl - Methyl Ether (TAME) ND 2.0 1 Surrogates: REC ( %) Control Chi ll Surrogates: REC ( %) Control Qua( Limk Limits 1,4- Bromofluorobenzene 96 57 -129 1,2- Dichloroethane -d4 93 47 -137 Toluene -d8 94 78 -156 VE -3B 07- 12- 0194 -6-A 12103/07 Air GC /MS K NIA 12/05/07 0712051-01 Parameter Result R DF Qu j Paramete Result RL DF Qual Benzene ND 20 40 Methyl -t -Butyl Ether (MTBE) 3700 400 200 Toluene ND 20 40 Tert-Butyl Alcohol (TBA) ND 80 40 Ethylbenzene ND 20 40 Diisopropyl Ether (DIPE) ND 80 40 p /m- Xylene ND 40 40 Ethyl -t -Butyl Ether (ETBE) ND 80 40 o- Xylene ND 20 40 Tert- Amyl - Methyl Ether (TAME) ND 80 40 Surrogates: ERC ( %) Control Qual Surrogates: REC ( %) Control Qual Limits Limlk 1,4- Bromofluorobenzene 87 57 -129 1,2- Dichloroethane -d4 87 47 -137 Toluene -d8 90 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 Page 8 of 23 U. alscience rw—_nvironmental Analytical Report A• aboratories, Inc, z y Delta Environmental Consultants, Inc. Date Received: 12/04/07 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 Monrovia, CA 91016 -8403 Preparation: N/A Qual Method: EPA TO -15 0.50 Units: ppb (v /v) Project: 4050 Gosford Rd., Bakersfield, CA 5.4 Page 3 of 5 Lab Sample Client Sample Number Number Date Date Collected Matrix Instrument Prepared Date Analyzed QC Batch ID VE -4A 07 -12- 0194 -7 -A 12/03107 Air GC /MS K N/A 12/05107 0712051-01 Parameter Result RL QE Qual Parameter Result RL PIE Qual Benzene ND 0.50 1 Benzene Methyl -t -Butyl Ether (MTBE) 5.4 2.0 1 7.6 Toluene 2.2 0.50 1 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 0.70 Ethylbenzene 0.60 0.50 1 2.0 1 Diisopropyl Ether (DIPE) ND 2.0 1 Ethyl -t -Butyl Ether (ETBE) p /m- Xylene 2.0 1.0 1 0.50 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 Surrogates: o-Xylene 0.75 0.50 1 REC (%) Tert- Amyl - Methyl Ether (TAME) ND 2.0 1 Surrogates: REC ( ° /al Control 1,4- Bromofluorobenzene Cial Surrogates: REC (%) Control 84 Qual Toluene -d8 85 Limits Limits 1,4- Bromofluorobenzene 87 57 -129 1,2- Dichloroethane -d4 86 47 -137 Toluene -d8 99 78 -156 VE-413 07 -12- 0194 -8 -A 12/03/07 Air GC /MS K N/A 12/05/07 0712051-01 Paramete Result R DF Qual Paramete Resul RL DF Qu ll Benzene ND 20 40 Methyl -t -Butyl Ether (MTBE) 4700 400 200 Toluene ND 20 40 Tert-Butyl Alcohol (TBA) ND 80 40 Ethylbenzene ND 20 40 Diisopropyl Ether (DIPE) ND 80 40 p /m- Xylene ND 40 40 Ethyl -t -Butyl Ether (ETBE) ND 80 40 o-Xylene ND 20 40 Tert-Amyl- Methyl Ether (TAME) ND 80 40 Surrogates: REC ( %) Control Qu8j Surrogates: REC ( %) Control Qu I Limits Limits 1,4- Bromofluorobenzene 90 57 -129 1,2- Dichloroethane -d4 88 47 -137 Toluene -d8 91 78 -156 VE -5A 07 -12- 0194 -9 -A 12/03/07 Air GC /MS K NIA 12/05/07 071205L01 I Parameter Result RL DF Qual Parameter Result RL DF Qu ll Benzene ND 0.50 1 Methyl -t -Butyl Ether (MTBE) 7.6 2.0 1 Toluene 2.4 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene 0.70 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene 2.9 1.0 1 Ethyl -t -Butyl Ether (ETBE) ND 2.0 1 o-Xylene 1.3 0.50 1 Tert-Amyl- Methyl Ether (TAME) ND 2.0 1 Surrogates: REC ( %) Control Qu I Surrogates: REC (%) Control QUA L1101k Limits 1,4- Bromofluorobenzene 105 57 -129 1,2- Dichloroethane -d4 84 47 -137 Toluene -d8 85 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 Para mete Result Page 9 of 23 mm alscience Qual 0A A G C C, , . al. N, Z_nvironmental Analytical Report 2.6 0.50 1 m1• aboratories, Inc. 8.9 2.0 Delta Environmental Consultants, Inc. Date Received: 12/04/07 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 Monrovia, CA 91016 -8403 Preparation: N/A 2.0 Method: EPA TO -15 Units: ppb (v /v) Project: 4050 Gosford Rd., Bakersfield, CA Page 4 of 5 Client Sample Number Lab Sample Date Number Collected Matrix Date Date Instrument Prepared Analyzed QC Batch ID VE -5B 07 -12- 0194 -10 -A 12/03/07 Air GC /MS K N/A 12/06/07 0712061-01 Para mete Result R 2E Qual Parameter Result al. DF g" Benzene 2.6 0.50 1 Methyl -t -Butyl Ether (MTBE) 8.9 2.0 1 Toluene 0.91 0.50 1 Tert-Butyl Alcohol (TBA) ND 2.0 1 Ethylbenzene 5.7 0.50 1 Diisopropyl Ether (DIPE) ND 2.0 1 p /m- Xylene 3.4 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 Qual Surrogates: REC ( %) Control Qual JLn_jk Limits 1,4- Bromofluorobenzene 89 57 -129 1,2- Dichloroethane -d4 81 47 -137 Toluene -d8 101 78 -156 Method Blank 097 -09- 002 -6,574 NIA Air GC /MS K N/A 12/05/07 0712051-01 Parameter Result RL DF Qual Parameter Result RL DF 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 ( %) Control 9iia1 Surrogates: REC ( %) Control 90-1 Limits Lim' 1,4- Bromofluorobenzene 95 57 -129 1,2- Dichloroethane -d4 97 47 -137 Toluene -d8 98 78 -156 Method Blank 097 -09- 002.6,578 NIA Air GC /MS K NIA 12106/07 071206LOI Parameter Result RL DF Qua! Parameter Result RL DF 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 (%) Control Qual Surrogates: REC ( %) Control Qual Limits L! Mk 1,4- Bromofluorobenzene 90 57 -129 1,2- Dichloroethane -d4 79 47 -137 Toluene -d8 98 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 1 alscience nvironmental aboratories, Inc. Analytical Report Page 10 of 23 u ACCD'. Delta Environmental Consultants, Inc. Date Received: 12/04/07 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -15 Units: ppb (v /v) Project: 4050 Gosford Rd., Bakersfield, CA Page 5 of 5 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 097 -09- 002 -6,579 N/A Air GC /MS K N/A 12/04/07 071204L01 Parameter Result RL P_E qypj Parameter Result RL QE 91 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) NO 2.0 1 o-Xylene ND 0.50 1 Tert- Amyl - Methyl Ether (TAME) ND 2.0 1 Surrogates: REC ( %) Control Cial Surrogates: REC ( %) Control Chi I Limits L. .t 1,4- Bromofluorobenzene 94 57 -129 1,2- Dichloroethane -d4 97 47 -137 Toluene -d8 98 78 -156 RL - Reporting Limit , OF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501 Parameter Result Page 11 of 23 o 6 alscience Qual ra,,,, Result EL 41 A.-_nvironmental Analytical Report ND M• 1 IJ aboratories, Inc. 0.0087 Delta Environmental Consultants, Inc. Date Received: 12/04/07 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 Monrovia, CA 91016 -8403 Preparation: N/A 0.0061 Method: EPA TO -15 Ethylbenzene Units: ug /L Project: 4050 Gosford Rd., Bakersfield, CA Page 1 of 5 Client Sample Number Lab Sample Date Number Collected Matrix Date Date Instrument Prepared Analyzed QC Batch ID FV 07.12- 01941 -A 12/03107 Air GC /MS K N/A 12/05/07 071205L01 Parameter Result RL DF Qual Parameter Result EL DE 1i II Benzene ND 0.0016 1 Methyl -t -Butyl Ether (MTBE) 0.0087 0.0072 1 Toluene 0.011 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene 0.0031 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene 0.020 0.0087 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o- Xylene 0.0037 0.0022 1 Tert- Amyl - Methyi Ether (TAME) ND 0.0084 1 Surrogates: REC (%) Control Qual Surrogates: REC t%l Control Qual LLruk Limits 1,4- Bromofluorobenzene 88 57 -129 1,2- Dichloroethane -d4 86 47 -137 Toluene -d8 87 78 -156 VE -1B 07 -12- 0194 -2 -A 12/03107 Air GC /MS K N/A 12/05/07 071205L01 Paramete Result RL DF Qual Parameter Result RL DF Qual Benzene 0.0021 0.0016 1 Methyl -t -Butyl Ether (MTBE) 0.011 0.0072 1 Toluene 0.017 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene 0.0063 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene 0.042 0.0087 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o- Xylene 0.0078 0.0022 1 Tert- Amyl - Methyi Ether (TAME) ND 0.0084 1 Surrogates: REC f%1 Controi Qjj@) Surrogates: REC t%1 Control Qual Limits Limi 1,4- Bromofluorobenzene 84 57 -129 1,2- Dichloroethane -d4 83 47 -137 Toluene -d8 93 78 -156 FVE-2A 07- 12- 01943 -A 12/03107 Air GC /MS K N/A 12/05/07 071205L01 Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene 0.0035 0.0016 1 Methyl -t -Butyl Ether (MTBE) 0.030 0.0072 1 Toluene 0.024 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene 0.0052 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene 0.027 0.0087 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o- Xylene 0.0050 0.0022 1 Tert- Amyl - Methyi Ether (TAME) ND 0.0084 1 Surrogates: REC ( %) Control Qum Surrogates: REC (%) Control Qial Limits Limits 1,4- Bromofluorobenzene 83 57 -129 1,2- Dichioroethane -d4 80 47 -137 Toluene -d8 83 78 -156 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 Parameter Result Page 12 of 23 alscience Parameter Result R DF Dual Benzene Air nvironmental Analytical Report 1 A• aboratories, Inc. 0.15 0.072 Delta Environmental Consultants, Inc. Date Received: 12/04/07 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 Monrovia, CA 91016 -8403 Preparation: N/A Ethylbenzene Method: EPA TO -15 1 Units: ug /L Project: 4050 Gosford Rd., Bakersfield, CA 1 Page 2 of 5 Client Sample Number Lab Sample Date Number Collected Matrix Date Date Instrument Prepared Analyzed QC Batch IC VE -2B 07- 12- 0194 -4-A 12/03/07 Air GC /MS K NIA 12/05/07 0712051-01 Parameter Result RL DF QuW Parameter Result R DF Dual Benzene 0.0070 0.0016 1 Methyl -t -Butyl Ether (MTBE) 0.15 0.072 10 Toluene 0.040 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene 0.0084 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene 0.044 0.0087 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene 0.0085 0.0022 1 Tert- Amyl - Methyl Ether (TAME) ND 0.0084 1 Surrogates: RE % Control Qual Surrogates: REC ( %) Control Qual 1,4- Bromofluorobenzene 87 Limk 1,2- Dichloroethane -d4 87 47 -137 iluiR Toluene -d8 1,4- Bromofluorobenzene 83 57 -129 1,2- Dichloroethane -d4 82 47 -137 Qual -Qualifiers Toluene -d8 85 78 -156 Ah k 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 FAX: 714) 894 -7501 VE -3B VE -3A 07 -12- 0194 -6 -A 07 -12- 0194 -5 -A 12/03107 Air GC /MS K N/A 12/05/07 0712041-01 Parameter Result RL DF ggal Parameter Result R DF Qual Benzene 0.0018 0.0016 1 Methyl -t -Butyl Ether (MTBE) 0.019 0.0072 1 Toluene 0.015 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene 0.0049 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene 0.034 0.0087 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene 0.0067 0.0022 1 Tert- Amyl - Methyl Ether (TAME) ND 0.0084 1 Surrogates REC ( %) Control 5M Surrogates: REC M Control Chi l 1,4- Bromofluorobenzene 87 Limk 1,2- Dichloroethane -d4 87 47 -137 Li it Toluene -d8 1,4- Bromofluorobenzene 96 57 -129 1,2- Dichloroethane -d4 93 47 -137 Qual -Qualifiers Toluene -d8 94 78 -156 Ah k 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 FAX: 714) 894 -7501 VE -3B 07 -12- 0194 -6 -A 12/03/07 Air GC /MS K N/A 12/05/07 071205L01 Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.064 40 Methyl -t -Butyl Ether (MTBE) 13 1.4 200 Toluene ND 0.075 40 Tert-Butyl Alcohol (TBA) ND 0.24 40 Ethylbenzene ND 0.087 40 Diisopropyl Ether (DIPE) ND 0.33 40 p /m- Xylene ND 0.35 40 Ethyl -t -Butyl Ether (ETBE) ND 0.33 40 o-Xylene ND 0.087 40 Tert- Amyl - Methyl Ether (TAME) ND 0.33 40 Surrogates_ RC ( %1 Control Qual Surrogates: REC ( %) Control Qual Limits L! Mk 1,4- Bromofluorobenzene 87 57 -129 1,2- Dichloroethane -d4 87 47 -137 Toluene -d8 90 78 -156 1 RL - Reporting Limit DF - Dilution Factor Qual -Qualifiers Ah k 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 FAX: 714) 894 -7501 u 1 Result Page 13 of 23 L alscience Parameter N R 9E Qual Benzene A.- nvironmental Analytical Report 1 Am aboratories, Inc. 0.019 0.0072 Delta Environmental Consultants, Inc. Date Received: 12/04/07 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 Monrovia, CA 91016 -8403 Preparation: N/A Ethylbenzene Method: EPA TO -15 1 Units: ug /L Project: 4050 Gosford Rd., Bakersfield, CA 1 Page 3 of 5 Client Sample Number Lab Sample Date Number Collected Matrix Date Date Instrument Prepared Analyzed QC Batch ID Ethyl -t -Butyl Ether (ETBE) VE -4A 07 -12- 0194 -7 -A 12103/07 Air GC /MS K NIA 12/05/07 0712051-01 Parameter Result aL DE Qua( Parameter Result R 9E Qual Benzene ND 0.0016 1 Methyl -t -Butyl Ether (MTBE) 0.019 0.0072 1 Toluene 0.0083 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene 0.0026 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene 0.018 0.0087 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene 0.0033 0.0022 1 Tert- Amyl - Methyl Ether (TAME) ND 0.0084 1 Surrogates: REC I %) Control Qual Surrogates: REC ( %) Control Qual ND 0.33 Lrpt Surrogates: REC I%) Lirak 1,4- Bromofluorobenzene 87 57 -129 Control 1,2- Dichloroethane -d4 86 47 -137 Toluene -d8 99 78 -156 Limits 1,4- Bromofluorobenzene VE-4B 57 -129 07 -12- 0194 -8 -A 12/03/07 Air GC /MS K NIA 12/05/07 0712051-01 Parameter R su t RL DE Qual Parameter Result F-6 DF Qual Benzene ND 0.064 40 Methyl -t -Butyl Ether (MTBE) 17 1.4 200 Toluene ND 0.075 40 Tert-Butyl Alcohol (TBA) ND 0.24 40 Ethylbenzene ND 0.087 40 Diisopropyl Ether (DIPE) ND 0.33 40 p /m- Xylene ND 0.35 40 Ethyl -t -Butyl Ether (ETBE) ND 0.33 40 o-Xylene ND 0.087 40 Tert- Amyl - Methyl Ether (TAME) ND 0.33 40 Surrogates: REC I%) Control QvA Surrogates: REC ( %) Control Qt 1 Limits Limits 1,4- Bromofluorobenzene 90 57 -129 1,2- Dichloroethane -d4 88 47 -137 Toluene -d8 91 78 -156 VE -5A 07 -12- 0194 -9 -A 12/03/07 Air GC /MS K N/A 12105/07 071205L01 Parameter Result RL DF Qual Parameter Result RL DF Qual Benzene ND 0.0016 1 Methyl -t -Butyl Ether (MTBE) 0.028 0.0072 1 Toluene 0.0089 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene 0.0030 0.0022 1 Diisopropyi Ether (DIPE) ND 0.0084 1 p /m- Xylene 0.025 0.0087 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o- Xylene 0.0055 0.0022 1 Tert- Amyl - Methyl Ether (TAME) ND 0.0084 1 Surrogates: REC (%) Control Qual Surrogates: REC t %) Control Qual i it Limits 1,4- Bromofluorobenzene 105 57 -129 1,2- Dichloroethane -d4 84 47 -137 Toluene -d8 85 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 m alscience 0 mw_nvironmental A• aboratories, Inc. Delta Environmental Consultants, Inc. 911 South Primrose Avenue, Unit K Monrovia, CA 91016 -8403 IProject: 4050 Gosford Rd., Bakersfield, CA Analytical Report Date Received: Work Order No: Preparation: Method: Units: Page 14 of 23 C ,.N ACCO,, Lj 12/04/07 07 -12 -0194 N/A EPA TO -15 ug /L Page 4 of 5 Parameter Result RL Lab Sample Date Date Date RL Client Sample Number Qual Benzene Number Collected Matrix Instrument Prepared Analyzed QC Batch ID ND vE -5B 1 07 -12- 0194 -10 -A 12/03/07 Air GC /MS K NIA 12/06/07 0712061-01 Parameter Result R DF Qua( Parameter Result R DE Qttkl Benzene 0.0084 0.0016 1 Methyl -t -Butyl Ether (MTBE) 0.032 0.0072 1 Toluene 0.0034 0.0019 1 Tert-Butyl Alcohol (TBA) ND 0.0061 1 Ethylbenzene 0.025 0.0022 1 Diisopropyl Ether (DIPE) ND 0.0084 1 p /m- Xylene 0.030 0.0087 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene ND 0.0022 1 Tert- Amyl - Methyl Ether (TAME) ND 0.0084 1 Surrogates: REC ( %) Control Qual Surrogates: REC ( %) Control Qu I 1,4- Bromofluorobenzene 95 Linik 1,2- Dichloroethane -d4 Llnik 47 -137 1,4- Bromofluorobenzene 89 57 -129 98 1,2- Dichloroethane -d4 81 47 -137 Toluene -d8 101 78 -156 Method Blank Method Blank N/A Air GC /MS K N/A 097 -09- 002 -6,574 N/A Air GC /MS K N/A 12/05/07 071205L01 Parameter Result RL DF Qual Parameter Result RL a 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 0.0087 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene ND 0.0022 1 Tert- Amyl - Methyl Ether (TAME) ND 0.0084 1 Surrogates: REC ( %) Control Chi I Surrogates: REC ( %) Control Qua/ imits UO2k 1,4- Bromofluorobenzene 95 57 -129 1,2- Dichloroethane -d4 97 47 -137 Toluene -d8 98 78 -156 Method Blank 097 -09. 002.6,578 N/A Air GC /MS K N/A 12/06107 071206L01 Parameter Result RL DF Qua/ Paramete r Result RL 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 0.0087 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o-Xylene ND 0.0022 1 Tert- Amyl - Methyl Ether (TAME) ND 0.0084 1 Surrogates: REC ( %) Control Q al Surrogates: REC ( %) Control Qu I mit Limits 1,4- Bromofluorobenzene 90 57 -129 1,2- Dichloroethane -d4 79 47 -137 Toluene -d8 98 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 1 o® iiscience nvironmental Aw aboratories, Inc. Analytical Report Page 15 of 23 ACC0 U Delta Environmental Consultants, Inc. Date Received: 12/04/07 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 Monrovia, CA 91016 -8403 Preparation: N/A Method: EPA TO -15 Units: ug /L Project: 4050 Gosford Rd., Bakersfield, CA Page 5 of 5 Lab Sample Date Date Date Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID Method Blank 097 -09- 002 -6,579 NIA Air GC /MS K N/A 12/04/07 0712041-01 Paramete Result aL 12E Qual Paramete Result 9.E -Q" 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 0.0087 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1 o- Xylene ND 0.0022 1 Tert- Amyl - Methyl Ether (TAME) ND 0.0084 1 Surrogates: REC ( %) Control Cial Surrogates: REC (%) Control Qual Limits Limits 1,4- Bromofluorobenzene 94 57 -129 1,2- Dichloroethane -d4 97 47 -137 Toluene -d8 98 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 Page 16 of 23 CeIscience Z nvironmental r1w aboratories, Inc. Quality Control - Duplicate ACC .z Delta Environmental Consultants, Inc. Date Received: 12/04/07 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 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 07 -12- 0197.2 Alr GC 13 N/A 12/04/07 071204002 Parameter Sample Conc DUP Conc RPD RPD ualifiiers TPH as Gasoline 110 110 3 0 -20 RPD - Relative Percent Difference , CL - Control Limit kA-- 7440 Lincoln Way, Garden Grove, CA 92841 -1427 . TEL:(714) 895 -5494 • FAX: (714) 894 -7501 Page 17 of 23 rte !/ science 1w nvironmental Quality Control - LCS /LCS Duplicate aboratories, Inc. Delta Environmental Consultants, Inc. Date Received: N/A 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 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- 002 -417 Air GC 34 N/A 12105/07 071205L01 Parameter LCS Conc LCSD Conc RPD RPD CL Qualifiers Carbon Dioxide 5.302 5.271 1 0 -30 Oxygen + Argon 20.83 20.77 0 0 -30 Nitrogen 77.25 77.02 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 alscience nvironmental jj. aboratories, Inc. Quality Control - LCS /LCS Duplicate Page 18 of 23 o o - ,cCO, J9 Delta Environmental Consultants, Inc. Date Received: N/A 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 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 -6,579 Air GC /MS K N/A 12/04107 0712041-01 Parameter LCS %REC LCSD %REC REC CL RPD RPD CL Qualifiers Benzene 120 109 60 -156 10 0 -40 Toluene Delta Environmental Consultants, Inc. Date Received: N/A 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 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 -6,579 Air GC /MS K N/A 12/04107 0712041-01 Parameter LCS %REC LCSD %REC REC CL RPD RPD CL Qualifiers Benzene 120 109 60 -156 10 0 -40 Toluene 129 111 56 -146 15 0 -43 Ethylbenzene 143 123 52 -154 16 0 -38 p /m- Xylene 137 115 42 -156 18 0 -41 o-Xylene 137 114 52 -148 18 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 23 46 alscience o A CC 0, ?o nvironmental Quality Control - LCS /LCS Duplicate j aboratories, inc. Delta Environmental Consultants, Inc. Date Received: N/A 911 South Primrose Avenue, Unit K Work Order No: 07 -12 -0194 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 Fo97-09-002-6,574 Air GCIMS K N/A 12105/07 0712051-01 Parameter LCS %REC LCSD %REC REC CL RPD RPD CL Qualifiers Benzene 122 110 60 -156 11 0 -40 Toluene 127 110 56 -146 14 0 -43 Ethylbenzene 148 124 52 -154 18 0 -38 p /m- Xylene 139 115 42 -156 19 0 -41 o-Xylene 135 112 52 -148 18 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 C=!=Iscience Mnvironmental 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 Page 20 of 23 cC0' Date Received: N/A Work Order No: 07 -12 -0194 Preparation: N/A Method: EPA TO -15 RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841 -1427 . TEL:(714) 895 -5494. FAX: (714) 894 -7501 Date Date LCS /LCSD Batch Quality Control Sample ID Matrix Instrument Prepared Analyzed Number 097 -09- 002 -6,578 Air GC /MS K N/A 12/06/07 0712061-01 Parameter LCS %REC LCSD %REC REC CL RPD RPD CL Qualifiers Benzene 104 104 60 -156 1 0 -40 Toluene 106 97 56 -146 9 0 -43 Ethylbenzene 122 116 52 -154 5 0 -38 p /m- Xylene 108 101 42 -156 7 0 -41 o-Xylene 102 96 52 -148 7 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 21 of 23 alscience Al nvironmental Glossary of Terms and Qualifiers aboratories, Inc. - Work Order Number: 07 -12 -0194 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 (MS) or Matrix Spike Duplicate (MSD) 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 M mmmm M M Mm mm MM M M M CALSCIENCE ENVIRONMENTAL Shell Oil Products US Chain Of Custody RecordLARORATORIFS- INC- OtSTRISUi%k1: WHU WM fnd ..port. Crean tD Foe. YaRow and Pk*tDCA8r1L CD K) N) 0 h Equiva Project Manager to be invoiced: 7440 Lincoln Way 0191713131712166DATE: Garden Grove, CA 92841-1432 Randy Orlowski PAGE: of 1714) 895-5494 (714) 894-7501 fax 21 2 4 SAMPLINGCOWAXY CODE SrrE ADDRESS (Sheet and City): MOBIL ro M: Delta Environmental Consultants KI- MM 4050 Gosford Road, Bakersfield ADDRESS: EOFDELMERABLE TOM-Pa Pft NO' E- CONSULTANTPROIECTNO.: 911 S. Primrose Ave., Monrovia CA Denise Alvarez 1'," 20," r2,15-6.62 datyaMEagem. g M IPA405OGlXPROJECTCONTACT (HdoMwPOF Rq Wz Sampler /GeologistKatherineSwordsIMarsiliGillecriosdIRossInouye TELEPHONE- FAX- nigillecriosdAdeltaeriv.corn EJUIL' 626-256-6662 626-256-6263 kwAFords(Zbde1taenv,corn rinouve0deltaenv.com W TURNAROUND TIME (BUSINESS DAYS): 10 DAYS 5 DAYS E] 72 HOURS 48 HOURS 1124 HOURS LESS THAN 24 HOURS REQUESTED ANALYSIS LA - RWQCB REPORT FORMAT USTAGENCY: s W FIELD NOTES: GC4W MTEIE CONFIRMATION: HIGHEST HIGHEST perBORING— ALL ContainedPreser"tiveSPECIALINSTRUCTIONSORNOTES: CHECK BOX IF EDDIS NOTNEEDED LJ or PID Readings Please provide report in ppb and Lic or Laboratory Notes 6 CD V 0 Field Sample Identification SAMPILING MATRIX No. OF CONT. ONRECEIPTL' JTE nMEulKK k -110-3 X X X ASTM 1946 for oxygen, VE-1A iwo Vapor 2 VE-1B Vapor 2 X X X nitrogen, methane, VE-2A X330 V rapo 2 X X X carbon dioxide, and VE-28 Vapor 2 X X X carbon monoxide. VE-3A Vapor 2 X X X VE-3B vapor 2 X X X X X XVEDAVapor2 X X XVERBVapor2 M00 X X XZ. 1 VE-5A Vapor 2 245 X X XIVE-5B Vapor 2 I I R*WxpjWmd W. (SiWotm) ReasivedOf. (Siarudum) Date: D,W Tim: 4—:2 10 Z/10 RWkqL&h.d br. (S4rft.) R by. (Sia-V--) Th-: OtSTRISUi%k1: WHU WM fnd ..port. Crean tD Foe. YaRow and Pk*tDCA8r1L CD K) N) 0 h WORK ORDER #: SAMPLE RECEIPT FORM CLIENT: TEMPERATURE — SAMPLES RECEIVED BY: CALSCIENCE COURIER: Chilled, cooler with temperature blank provided. Chilled, cooler without temperature blank. Chilled and placed in cooler with wet ice. Ambient and placed in cooler with wet ice. Ambient temperature. C Temperature blank. Page 23 of 23 DATE: G a /011 LABORATORY (Other than Calscience Courier): C Temperature blank. C IR thermometer. Ambient temperature. Initial: CUSTODY SEAL INTACT: Sample(s): Cooler: No (Not Intact) : Not Present: Initial: _04 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 ..................... L....... ....... Sample container(s) intact and good condition .... ............................... L, ..... . 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 .................... ............................... ....... ....... Initial: COMMENTS: