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r <br /> Quarterly Report - Second Quarter 2001 <br />' National Freight <br /> 2850 Loomis Road, Stockton, California <br />' 1.0. INTRODUCTION <br />' In accordance with the request of Mr Daniel Folcher of Vineland Construction Co , Advanced <br /> GeoEnvironmental, Inc (AGE) has prepared this report of environmental activities conducted at <br />' 2850 Loomis Road (the site), Stockton, California The scope of work this quarter included <br /> monitoring and sampling the three groundwater momtoring wells on the site This report documents <br /> the procedures and results for the monitoring event The location of the site and its surroundmgs are <br />' Illustrated on Figure 1, major features on the site and monitoring wells are illustrated on Figure 2 <br /> This investigation was performed In accordance with the guidelines of the Central Valley Regional <br />' Water Quality Control Board (RWQCB) and the San Joaquin County Public Health Services - <br /> Environmental Health Division (PHS-EHD) for investigations of underground storage tank(UST) <br /> sites and sampling ground water monitoring wells <br /> t <br /> 2.0 PROCEDURES <br /> Ground water monitoring and sampling procedures were performed in accordance with the <br /> AGE-prepared and PHS-EHD-approved Monitoring Well Installation Work Plan, dated 09 June <br />' 2000 The work was performed to monitor dissolved petroleum hydrocarbon concentrations and <br /> other target contaminants in ground water and to characterize ground water flow direction and <br /> gradient on the site <br /> 1 <br />' 2 1 MONITORING WELL PURGE PROCEDURES <br /> On 31 May 2001, a Solinst water level meter was used to measure the depth to ground water from <br />' the well casing tops in wells MW-1 through MW-3 The depths to ground water are summarized in <br /> Table 1 <br />' After water levels were gauged, a disposable plastic bailer was used to purge each monitoring well <br /> of a minimum of three casing-water volumes (approximately 9 5 gallons) of ground water <br /> Temperature, pH, and conductivity were measured at approximately two-gallon Intervals using a <br />' Hydac water analyzer The field data sheets are included in Appendix A Purged water was stored <br /> on site in 55=gallon drums <br /> Advanced GeoEnvironmental,Inc <br />