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i, f y <br /> 4 <br /> Page 3 <br /> tits. Mary Meays <br /> July 15.1991 <br /> Benzene, Toluene. Bthylbenzenes and Xylenes(BTE&X)-- EPA <br /> Method 8020:and <br /> Organic lead-- BHS-specified Viethod. <br /> A •1 i 1S <br /> The findings from the laboratory testing of soil and ground water samples <br /> are summarized in Table 2. Laboratory reports and chain-of-custody <br /> are attached. <br /> Analyses of the soil samples collected from the borings for wells N 1W-4 and <br /> MW-5 indicated that petroleum hydrocarbons (identified as gasoline) were <br /> present in the soil. BTX&E compounds were also detected in soil samples <br /> from well MW-5. <br /> Analyses of water samples from wells MW-4 anti MW-5 indicated that <br /> similar compounds ounds) are present n the gra dwater.m hydrocarbons identified as gasoline <br /> certain BTEX comphighes <br /> oncentrations are present directly under the location of the former t n <br /> cthe <br /> Figure 1 depicts the maximum probable extent of petroleum p <br /> ground water. <br /> A Problem Assessment Report (PAR) was requested by San Joaquin County <br /> r in a letter dated Apri15, 1991. Phone contact with Ms.Diane Hinson ening <br /> County(June G,1991)was followed by a letter dated June 12, 1991 req <br /> at the <br /> a time extension for the PAR. The reason S��ra a tank removalrequest was s at 325 <br /> r ti <br /> results from two additional underground g <br /> and 1541 West Weber Avenue, respectively) are to be included in the report. <br /> The County granted a time extension until September 15. 1991. <br /> T.,+o,-lore RarnPf�tR� �easures <br /> ERM-Wesconsideri gess several possible nterimDevelopment <br /> remedial measuresforthe <br /> currently preventing a <br /> site. The selected interim measure will be targeted at both p ending <br /> deterioration in site conditions and short-term remediation, p <br /> completion and acceptance of the PAR. 1 <br />