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J&B Murphy <br /> Page 2 of 2 <br /> analyzed quarterly for TPHg and TPHd by EPA Method 8015; BTEX by EPA Method <br /> 8020; and oxygenates, 1,2 dichloroethane, ethylene dibromide,methanol and ethanol by, <br /> EPA.Method 8260. <br /> A complete well survey of domestic,municipal, agricultural,industrial and any other <br /> wells must be conducted within a 2,000 foot radius of this site. Contact the Deparaneat <br /> L of Water Resources,municipal water suppliers,and any nearby industries for well <br /> information PHS/EHD well permit records should be researched to identify any wells. <br /> Identify all sources of information in the well survey report. Clearly depict each well <br /> location as they relate to the above referenced site and submit any]mown construction <br /> details of the wells. <br /> ( w In addition to the literature search descn'bed above, a ground-truth physical survey for <br /> ` wells within a 2,000-foot radius of the site must also be conducted. The location of wells <br /> identified in the physical search must be provided to PHS/EI-M, as well as any known <br /> well construction details. All sources of information utilized in the physical well survey <br /> must also be provided to PHS/EHD. <br /> L A survey must also be conducted to identify any potential conduits that would allow <br /> vertical or lateral migration of contaminants in groundwater. This survey should also <br /> cover a radius of 2,000 feet from the,site, and can be combined with the physical <br /> Lsurvey for wells. <br /> A work plan to determine the lateral and vertical extent of soil and groundwater <br /> contamination at this site must be_submitted to_PH&THD by November 30,2000. <br /> Contact Carol Oz, Senior REHS.at(209)468-3440 if you have questions regarding this <br /> letter. <br /> Donna Heran, Director <br /> Environmental Health Division <br /> Carol Oz, Senior RENS Dot Lofstrom,RG <br /> Site Mitigation Unit N Engineering Geologist,Unit N <br /> I ` y <br /> cc: Marty Hartnell-RwQcB <br /> William and Mary Lana-Property Owners <br /> L Brian Millman AGE <br />