Laserfiche WebLink
' Quarterly Report - First Quarter 2006 <br /> . RIPON FARM SERVICE <br /> ' 22871 South Highway 99, Ripon, California <br /> ' 1.0. INTRODUCTION <br /> At the request of Mr Allan Fetters, Advanced GeoEnvironmental, Inc (AGE) has prepared this <br /> ' report of environmental activities conducted at 22871 South Highway 99, Ripon, California(site) <br /> The report documents the procedures and analytical results from the quarterly ground water <br /> monitoring event performed on 10 February 2006,a total of ten ground water monitoring wells were <br /> monitored and sampled The location of the site and surrounding area are illustrated on Figure 1 <br /> Structures,monitoring wells,and remediation well locations associated with the site are depicted on <br /> ' Figures 2 Background information,including details of previous site assessment work,is presented <br /> in Appendix A <br /> 2.0. PROCEDURES <br /> ' Field work was performed in accordance with guidelines established by the Central Valley Regional <br /> Water Quality Control Board(CVRWQCB)forthe investigation of underground storage tank(UST) <br /> sites and the San Joaquin County Environiriental Health Department (EHD) for the sampling of <br /> ' . ground water monitoring wells <br /> 2 1 WELL MONITORING AND EVACUATION <br /> A Solinst water level meter was used to measure the depth to ground water in monitoring wells <br /> ' MW-1 through MW-10 relative to the tops of the well casings,prior to any well purging The ground <br /> water elevations and gradient were determined from these data ( lei 1) � t 10 vrj <br /> After recording water level measurements, disposable plastic bailers were used to purge the wells <br /> of standing water Approximately 3 to 6 gallons of water(a minimum of three casing water volumes <br /> per well) were removed from wells MW-1 through MW-10 Ground water temperature, pH, and <br /> ' conductivity were measured at regular intervals during purging using an Oakton water analyzer <br /> Purged ground water was containerized in properly labeled, Department of Transportation <br /> (DOT)-approved 55-gallon drums and stored on-site Field sheets and data are included in <br /> Appendix B <br /> ' 2 2 COLLECTION AND ANALYSIS OF GROUND WATER SAMPLES <br /> 1 Ground water samples were collected from the purged wells using new disposable plastic bailers <br /> after allowing the wells to achieve a minimum 80%recovery of the pre-purge water volume Each <br /> • sample was transferred into three,40-milliliter(ml)EPA-approved volatile organic analysis(VOA) <br /> ' Adraeced GeoEnvnronmentai,Inc <br />