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r <br /> M <br /> Quarterly Report - First Quarter 2000 <br /> . RIPON FARM SERVICE <br /> 22871 South Highway 99, Ripon, California <br /> 1.0. INTRODUCTION AND SCOPE OF WORK <br /> At the request of Allan Fetters,Advanced GeoEnvironmental, Inc (AGE) has prepared this report <br /> for ground water monitoring and sampling activities conducted at 22871 South Highway 99, Ripon, <br /> California (the site) <br /> This report documents the sampling acti-vities performed at the site on 12 January 2000 and presents <br /> results of laboratory analysis of the samples collected The objective of the work was to monitor <br /> ground water conditions and concentrations of dissolved petroleum hydrocarbons and selected fuel <br /> additives in ground water at the site The location of the site and its surroundings are illustrated in <br /> Figure 1 Structures and monitoring well locations associated with the site are depicted in Figure 2 <br /> Background information, including details of previous site assessment work, was presented in the <br /> April 1996 Quarterly Report prepared by AGE, dated 20 June 1996 <br /> 2.0. PROCEDURES <br /> Monitoring and sampling acts ities xvere conducted in accordance with both the San Joaquin County <br /> Public Health Services - Environmental Health Dig ision (PHS-EHD) and the Central Valley <br /> Regional Water Quality Control Board (CVRWQCB) guidelines for the investigation of <br /> underground storage tank (UST) sites <br /> 2 1 MONITORING WELL PURGE PROCEDURES <br /> On 12 Tanuary 2000, a Solinst v,ater le-, el meter v�as used to measure the depth to around water in <br /> NN ells MW-1 through MW-5, VW-IAIB and `,,W-2A/B Wells VW-lA and VW-2A are soil vapor <br /> extraction %N ells NNith screened intervals between 5 and 20 feet below surface grade (bso), VW-1B <br /> and VW-2B are air spargino %N ells with screened intervals bete een 30 and 35 feet bse The depths <br /> to around water are summarized in Table 1 <br /> After ground "ater depth measurements were recorded. a minimum of three Nvell-volumes of D ound <br /> eater were pureed from wells MW-1 through MW-5 and VW-1B and VW-23 All \%ells were <br /> pureed using a pre-cleaned. t�ko-stage submersible pump SVE wells VW-lA and VW-2A were <br /> pureed using a clean PVC bailer <br /> Monitoring wells Mei►'-1 through MW-5 were each pureed of approximately 9 gallons of water <br /> Approximately 9• gallons of water were removed from wells VW-1B and VW-2B, and 0 25 gallons of water NN ere removed from wells VW-lA and VW-2A <br /> Adiancid GeuEmrronnuntal Inc <br />