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rknKLEIN FELDER <br /> r <br /> r1 EXECUTIVE SUMMARY <br /> rThis is a work plan to assess baseline ground water quality beneath the Harvest Glen <br /> rSubdivision. <br /> During a Preacquisition Site Assessment (PSA) for the Jonathan Group (Developers of <br /> rHarvest Glen Subdivision), Kleinfelder reviewed the records of the California Regional <br /> Water Quality Control Board (RWQCB) concerning the nearby Georgia-Pacific (75 W. <br /> r Valpico Road) and Triple E Produce (8690 W. Linne Road) sites. The RWQCB has <br /> investigated the two facilities as potential sources of chloroform contamination in the local <br /> ' ground water. Chloroform contamination has migrated offsite in both cases. The Georgia- <br /> Pacific site is currently undergoing remediation and the Triple E Produce site is still under <br /> r investigation. The two sites are south and east of the Glen Harvest subdivision, ground <br /> water flow is reportedly north to northwest. <br /> rTo collect ground water samples for an assessment of the baseline ground water quality <br /> beneath the site, Kleinfelder proposes to install three monitoring wells on site. Ground <br /> r water samples will be collected from the three wells and analyzed for purgeable <br /> halocarbons by EPA Method 601 specifically for chloroform. In addition, ground water <br /> flow direction and gradient will be calculated to assess the potential impact from offsite <br /> sources. <br /> rTo begin field operations a boring permit is required from the San Joaquin Local Health <br /> r District (SJLHD). A copy of this work plan,with a release of data information form signed <br /> by a representative of the Jonathan Group, should be sent to the SJLHD for their approval. <br /> rOnce the SJLHD has issued the boring permit Kleinfelder will implement this work plan. <br /> r <br /> r <br /> 1 <br /> 129-88-1378 1 <br /> r <br />