Laserfiche WebLink
1 <br /> ENVIRONMENTAL INVESTIGATION REPORT <br /> Unocal Service Station No 5886 <br /> 2701 West March Lane <br /> Stockton,Caltforrua <br /> Delta Project No D095-066 <br /> ' Page 11 <br /> tAnalytical results reported one soli sample (CF-3SW-6) with detectable concentrations of ethylbenzene, <br /> total xylenes, TPH as gasoline, and TPH as diesel Benzene was not detected in any sample above the <br /> ' laboratory's limits detection(0 005 mg/kg) A tabulation of the laboratory analytical results are presented <br /> in Table 6 (New Canopy Footing Soil Sample Analytical Results) and copies of the laboratory analytical <br /> reports and chain-of-custody documentation are presented in Appendix C <br /> ' 4 5 2 Canopy FootingStockpiled tockpiled Soil Sampling, Ana!Ytical_Results--and Divosa. <br /> Soil generated during the preparation of the new southern canopy footings (SP-lA, B, C, D) was <br /> ' stockpiled on-site in two piles on September 27, 1995 and soil generated by the preparation of the <br /> northern and center canopy footings was combined into a single pile (SP-2A,B,C,D) Two soil samples <br /> were collected from each soil pile and submitted to Sequoia for compositmg and chemical analysis Each <br /> ' composite soil sample was analyzed for TPH as gasoline and TPH as diesel using EPA Method 8015 <br /> Modified, BTEX using EPA Method 8020 and total lead using EPA Method 7421 A tabulation of the <br /> analytical results from the soil piles sampled on September 27, 1995, is presented in Table 2 and copies <br /> of the analytical results are presented in Appendix C <br /> a1 <br /> Following characterization of the soil, soil profile forms were prepared and submitted to Forward Landfill <br /> ' for review Pursuant to approval by SJCEHD on October 19, 1995, the soil was transported to Forward <br /> Landfill, where it was accepted and approved for disposal A copy of Forward Landfill's acceptance is <br /> ' presented in Appendix D <br /> ' 4 6 Tank Tightness Testing <br /> On October 4, 1995, the 12,000 gallon diesel UST was tested by Triangle Environmental, Inc of <br /> Burbank, California for tank tightness Results of the test indicated that the tank was tight A copy of <br /> their report is presented in Appendix F <br /> 1 <br /> RPT 160 SJS <br />