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LEVINE-FRICKE <br /> CON SIIC IING CNGINU RS AN IIY fIROGCOLOGIS fS <br /> August 21, 1989 r E I V LF 1438 <br /> Mr. Kevin Huber NOV 2 0 1989 <br /> Grupe Development Company <br /> 2291 west March Lane ENVIRONIMENTAL HE7ALTH <br /> Stockton, California 95207 IDERMIT/'SERV S <br /> Subject: Findings from Environmental Assessment of the Former <br /> Barrel Storage Area, Brookside Development Site, <br /> San Joaquin County, California <br /> Dear Kevin: <br /> At your request, we have prepared the following summary of the <br /> findings and recommendations resulting from our environmental <br /> assessment of the former barrel storage area located adjacent to <br /> and on the northern end of the former milk barn in "Area 3" at <br /> the subject site (Figures 1 and 2) . The findings of our <br /> environmental assessment of the subject site were reported in two <br /> previous reports: "Environmental Site Assessment Report, <br /> Brookside Development Site, San Joaquin County, California, " <br /> December 8, 1988, and "Report of Supplemental Field <br /> Investigations, Grupe Brookside Development Site, San Joaquin <br /> County California, " December 8, 1988. <br /> Initial Sampling and Analysis <br /> Two shallow borings were drilled in conjunction with initial site <br /> assessment activities on November 3 , 1988 to depths of <br /> approximately 8 and 12 feet below grade, respectively, in the <br /> vicinity of the former barrel storage area (boring B-14) and <br /> former garbage pit (boring B-15) located to the north and east of <br /> the milk barn (Figure 3) . Ground water was first encountered at <br /> a depth of 5 feet below grade in the former barrel storage area <br /> (B-14) and at 10 feet below grade in the garbage pit boring <br /> (B-15) . Soil samples were collected for chemical analysis from <br /> each boring at depths of approximately 2 and 4 feet below grade. <br /> Grab ground-water samples were also collected for chemical <br /> analysis from each borehole. <br /> The soil samples collected from the approximately 2-foot deptil of <br /> each boring were analyzed by a State-certified laboratory for <br /> total petroleum hydrocarbons (TPH) using EPA Method 8015, and for <br /> volatile organic compounds (VOCs) using EPA Method 8240 _ The <br /> sample collected from the 4-foot depth of boring B-14 was also <br /> analyzed for these compounds . In addition, the soil samples <br /> collected from the 2- and 4-foot depths of boring f3-14 wec-e <br /> analyzed for chlorinated pesticides using E['A [Method 808)0, anti <br /> f-o►- the meta Ls arsenic, lead and mercury . The clround-water <br />