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Quarterly Groundwater Monitoring Report <br /> Second Quarter 2000 <br /> Former American Forest Products Stockton Facility <br /> Stockton, California <br /> 1 0 INTRODUCTION <br /> This report has been prepared by URS/Dames & Moore on behalf of the former American <br /> Forest Products Company (AFPC), and presents the results of groundwater monitoring <br /> activities conducted during the second quarter of 2000 at the former AFPC facility (Site) <br /> located at 2801 West Lane, Stockton, California (Figure 1) This work has been conducted <br /> in response to a letter from the San Joaquin County Public Health Service-Environmental <br /> Health Division (PHS/EHD) dated August 3, 1998 <br /> 1.1 Background <br /> The Site is located at a former wood processing facility, previously operated by AFPC Site <br /> investigations began with a soil investigation conducted by Bechtel National in February <br /> 1986, which indicated hydrocarbon impacts in soils adjacent to two USTs One UST was a <br /> 10,000-gallon diesel tank, and the other UST was a 500-gallon waste oil tank The <br /> California Department of Health Services (DHS) required the preparation of a Remedial <br /> Action Plan (RAP) for the site during September 1986 Between June and September 1987, <br /> Klemfelder conducted a soil and groundwater investigation at the Site <br /> The two USTs were excavated and removed on May 11, 1988 Also during May 1988, a <br /> soil investigation was conducted by Dames & Moore Based partially on results of the soil <br /> investigation, a Feasibility Study/Remedial Action Plan (FS/RAP) was submitted by Dames & <br /> Moore in July 1988 to PHS/EHD The FS/RAP recommended the demolition of the shop to <br /> access impacted soil, excavation of soil with total petroleum hydrocarbons as diesel (TPH- <br /> D) concentrations > 10,000 ppm Site restoration proposed included capping the <br /> excavation area with asphalt, and treating TPH-impacted soil on-site with bioremediation <br /> In February 1990, the California Regional Water Quality Control Board (CRWQCB) agreed <br /> with the concept of excavation and on-site treatment, combined with long-term monitoring <br /> The CRWQCB required preparation and submittal of a detailed work plan for soil removal, <br /> and a long-term monitoring plan including new monitoring wells <br /> Dames&Moore 1 J WFPIREPORTIQ2-2000 DOC <br />