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' Quarterly Report - First Quarter 2002 <br /> Shockey and Sons Trucking <br /> ' 850 Milgeo Avenue, Ripon, California <br /> ' 1.0. INTRODUCTION <br /> ' At the request of Mr. Lee Shockey, Advanced GeoEnvironmental, Inc. (AGE) has prepared this <br /> quarterly report for the site located at 850 Milgeo Avenue, Ripon, California(the site). The scope <br /> of work included the monitoring of four ground water monitoring wells. The location of the site and <br /> ' its surroundings are depicted in Figure 1. Monitoring wells, probe boring locations and structures <br /> on the site are shown in Figure 2. <br /> Site history and findings from previous investigations and previous monitoring events at the site are <br /> summarized in Preliminary Investigation and Evaluation Report dated 15 August 1996, prepared <br /> by AGE. Quarterly monitoring data from April 1996 to the present is summarized in Tables 1 and 2 <br /> of this report. <br /> This report has been prepared in accordance with the Central Valley Regional Water Quality Control <br /> Board (CVRWQCB) guidelines for the investigation of underground storage tank (UST) sites. <br /> . 2.0. PROCEDURES <br /> 1 ' <br /> Field work was performed in accordance with the AGE-prepared Work Plan Addendum, dated 09 <br />' February 1996. Field work was performed in accordance with guidelines developed by Central. <br /> Valley Regional Water Quality Control Board (CVRWQCB) for the investigation of underground <br /> storage tank (UST) sites and conform to ground water monitoring guidelines issued by the <br />' PHS-EHD. _ <br /> , t <br />' 2.L WELL MONITORING AND EVACUATION <br /> On 29 January 2002, the water level in each.monitoring well was measured relative to the tops of <br />' the.well casings using a Solinst water level meter. The depths to ground water and relative ground <br /> water elevations are given in Table 1. <br />' After depth to ground water gauging,a dedicated,disposable bailer was used tour e each well. Six <br /> p g <br /> gallons of water were removed from well MW-1, five gallons were removed from wells MW-2 and <br /> BMW-3; and twelve gallons of water were removed from MW-4(minim um of three_casing;yolumes. <br />' per well). The ground water parameters of temperature, pH and conductivity were measured at <br /> regular intervals, using an Oakton water analyzer. The ground water parameters stabilized during <br />' purging (Appendix A). <br /> Purged water was stored on-site in 55-gallon Department of Transportation(DOT)-approved drums. <br /> Advanced Gen Environmental,Inc. <br />