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QUARTERLY REPORT <br /> .duly 1996 <br /> Lockeford Beacon <br /> 13975 East Highway 88 <br /> Lockeford, California <br /> 1.0. INTRODUCTION <br /> In accordance with a request from Mr Robert Phillips of Lockeford Beacon, Advanced <br /> GeoEnvironmental, Inc (AGE) has prepared this Quarterly Report summarizing field activities <br /> performed during the third quarter of 1996 at 13975 East Highway 88 Lockeford, California The <br /> site location is illustrated on Figure 1 - Location Map A plan of the site is illustrated on Figure 2 - <br /> Site Plan <br /> Quartet ly ground water monitoring was performed on 08 July 1996 in accordance A ith Central <br /> Valley Regional Water Quality Control Board (CVRWQCB) and San Joaquin County Public Health <br /> Services - Environmental Health Division (PHS-EHD) guidelines for the investigation of <br /> underground storage tank (UST) saes Background information, including details of the site <br /> assessment, is summarized in previous quarterly reports <br /> 2 0. PROCEDURES <br /> 21 MONITORING WELL PURGE PROCEDURES <br /> On 08 July 1996, a Solinst water level meter was used to measure the depth to ground water in each <br /> well relative to the top of the casing The relative ground water elevations and hydraulic gradient <br /> were determined from these data(Table 1) <br /> After depth-to-water measurements each well e n <br /> p 1 wa s purged using x g w e disposable bailers <br /> Approximately 5 to 8 gallons (minimum of three well volumes) of water were removed from each <br /> well Temperature, pH and conductivity were measured at one-gallon intervals using an ICM water <br /> analyzer Stabilization data and field logs are included in Appendix A All purged water was stored <br /> in 55-gallon drums on-site <br /> 22 COLLECTION OF GROUND WATER SAMPLES <br /> Water samples were collected from each well using disposable bailers Immediately upon retrieval, <br /> the samples were transferred into 40-m1 EPA vials containing hydrochloric acid as a preservative <br /> The samples were transported in a chilled container, under chain-of-custody, to McCampbell <br /> Analytical, Inc (MAI) and analyzed for total petroleum hydrocarbons as gasoline (TPH-g), volatile <br />