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r <br /> hTJ KL E I N F E L D E R <br /> 1. EXECUTIVE SUMMARY <br /> This is a report of Kleinfelder's Limited Soil Sampling and Analysis conducted at the proposed <br /> Glenbriar School Site located south of Valpico Road and west of MacArthur Drive in Tracy, <br /> California (See Plate 1). Dr. Ellen Hancock of the Jefferson School District, retained Kleinfelder <br /> on June 5, 1998 to conduct the assessment in accordance with Kleinfelder's proposal entitled <br /> "Limited Soil Sampling and Analysis, Proposed Glenbriar Estates School Site, Tracy, California", <br /> dated July 31, 1997 (File No. 20-YP7043). <br /> Sierra Environmental Consultants conducted a Phase I Environmental Assessment of the subject <br /> site. Their report entitled "Phase I Environmental Assessment, for the Jefferson School District's <br /> proposed Glenbriar Estates School Site, Tracy, San Joaquin County, California," dated April 11, <br /> 1997, included the following recommendations related to the subject site: <br /> • Soil sampling and analysis for fuel, oil, grease, solvent hydrocarbons and heavy metals, in the <br /> former gravel pit adjacent to the western boundary of the orchard. <br /> • Soil sampling and analysis for heavy metals and chlorinated hydrocarbons including DDT, <br /> DBCT,EDB,DD,arsenic,and lead. <br /> Kleinfelder submitted a workplan to San Joaquin County Public Health Services Department <br /> s <br /> Environmental Health Division (PHS/EHD), based on Sierra Environmental's Phase I report and <br /> Kleinfelder's contract with the Jefferson School District. Based on the submittal, permit and <br /> workplan approval was given by Ms. Lori Duncan of PHS/EHD on July 8, 1998. <br /> On July 16, 1998, Kleinfelder advanced a total of seven hand augered soil borings. Two of the <br /> borings (B 1 and B2) were advanced to a depth of five feet in the area of the former gravel pit, <br /> and five (SBI through SB5) were advanced to a depth of six inches to one foot in the orchard <br /> west of Mac Arthur Drive. The scope of work was changed from the approved scope due to <br /> significant changes in site conditions. The soil samples were analyzed for one or more of the <br /> following: <br /> • Halogenated Volatile Organics by EPA Method 8010 <br /> • Fuel Fingerprint by EPA Method 3510/8015M <br /> • CAM-17 Metals by EPA Methods <br /> • Organochlorine Pesticides and PCBs by EPA Method 8080 <br /> 204202-0I.P0212018R669 Page 1 of 14 <br /> © 1998,Kleinfelder.Inc. October 28, 1998 <br />