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POLYMAT X <br /> A S S O C I A T E S <br /> 191 HARDER ROAD, SUITE 25 <br /> HAYWARD, CALIFORNIA 94544 <br /> 4151582-1641 <br /> i <br /> Universal Engineers Incorporated August 18, 1987' <br /> 610 Industrial. tlay Project# 069 <br /> Benicia, CA 94510 UE Job No. 2929 <br /> Revision# 1 <br /> . Attention: Richard Camacho <br /> Subject: Analvtical results for soil samples collected at 1804 UJ: Main St. <br /> Stockton, CA. ESMUD Corpoi-ation Yard. <br /> Dear Mr. Camacho: <br /> Analytical results are complete for the samples referenced above. The <br /> samples were analyzed to measure the concentration of various chemical <br /> constituents. The analytical procedures used to measure these constiuents <br /> are based on applicable U.S. Environmental Protection Agency methods. <br /> Included in this report is a brief description of field procedures, a <br /> table of results and anappendixproviding =laboratory certification infor- <br /> mation. <br /> Field Procedures: On July 27,1987 Fred Davis of PolyMatrix Associates, atI <br /> the request of Universal Engineers, collected two (2) soil samples following <br /> a diesel tank removal. On July 29,1987 two (2) soil samples were also collected <br /> following the removal of a gasoline tank on July 27,1987 and the boring of samp^7 <br /> _ung holes in a cement caldron on July 29,1987. The cement caldron held the gas- <br /> oline tank in place. The samples were collected using a hand-driven modified <br /> shelby tube with brass liners. Once the samples were extracted from the areas <br /> of concern, the brass liner open ends were;covered. with aluminum foil and sealed <br /> with PVC tape. All samples were immediately labeled and recorded on chain-of- <br /> custody forms. Samples were then placed on ice (4'C) for transportation to the <br /> laboratory. <br /> Analytical Results: The table attached lists the samples, parameters and their <br /> perspective concentrations. The analyses were performed by ANATEC Laboratories <br /> of Santa Rosa, Certification #178, except the EDB tests. The EDB .analyses were <br /> performed by Curtis & Tompkins Laboratory of San Francisco, Certification #159. <br /> If you have any questions regarding this revision, please feel free to .call <br /> me at your convenience. <br /> i <br /> Thank You.7,,Fred Davis <br /> 1 <br /> PolyMatrix Associates 1 <br /> I <br /> I <br />