Laserfiche WebLink
Mr. Cecchini <br /> Page 3 <br /> June 28,,1993 <br /> f <br /> certified laboratory in Peoria, Illinois. The laboratory 6brnposited every samples les into <br /> P <br /> one for the purpose of analysis. The requested analysis' included: <br /> • TPH as diesel using method 3550/8015 modified, <br /> • TPH as gasoline using method 5030/8015 modid,ed, <br /> BTEX using method.5030/8020, and <br /> • Total lead, copper, nickel, zinc and barium using the EPA 6000 Series. <br /> Results of April 1993 Event <br /> The stockpiled soil measured 180 feet long by 70 feet wide by an average depth of 1.3 feet. <br /> for a calculated volume of 606 cubic yards. Analytical ;results of the April 1993 stockpile <br /> sampling are presented on the attached laboratory certificate of analysis. TPH as gasoline <br /> and diesel as well as BTEX components were all nondetectable at the reporting limits <br /> shown. Lead, copper, nickel, zinc and barium were reported at concentration well below <br /> TTLC concentrations. <br /> Recommendations <br /> ESE recommends that no further action be requ- <br /> ired for the stockpiled soil located in the <br /> fenced area of the site adjacent to the former Thomas Yard and that written site closure be <br /> issued to Cecchini, Cecchini and Giovannoni for the Thomas Yard and the stockpiled soil. <br /> ESE further requests that the soil be allowed to remainlIon site and used as fill within the ; <br /> upper 15 feet of the site relative to grade. <br /> Ground water at the site is currently at a depth of 80 feet:;.According to San Joaquin County <br /> historic ground water highs are approximately 65 feet depth ( M. Infurna). Based on the <br /> nondetectable concentration of fuel constituents in the soil and low metals concentrations, <br /> ground water will not be impacted by this use of the soil. <br /> References i <br /> I <br /> J. Thorpe, 1989, laboratory analytical results and site notes provided to ESE by Delta I <br /> Truck, Inc. <br /> i <br /> i <br />