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1 <br /> u 3x 1 s,�y. S it✓ d„ ^a w -, <br /> J <br /> 4 <br /> . ' Quarterly Report - Third Quarter 2000 3 <br /> CHEROKEE TRUCK STOP _ <br />' L 3535 East Cherokee Road, Stockton, California Y <br /> L , d <br />' 1.0. INTRODUCTION v <br /> 4 <br /> At the request of Mr Ellis Cecchim of Cecchmi, Cecchim and Giovarinorii, Advanced " <br /> 1 GeoEnvironmental, Inc (AGE) has prepared this report for field work performed at 3535 East <br /> Cherokee Road, Stockton; California, during the third quarter of 2000 The scope of work this <br />' quarter included morutonng the ground water well network on the site and sampling the small and <br /> large domestic well This report documents collection and analysis of ground water samples and the <br /> results of ground water measurements <br /> ` The site setting is illustrated in Figure 1 Structures, monitoring well and soil baring locations are <br /> illustrated in Figures 2 and 3 Background information was summarized in the Quarterly Report - ' <br />' September 1999, dated 29 December 1999,-prepared by AGE ' <br /> 1 <br />' 2.0. PROCEDURES <br /> Six ground water monitoring wells and two domestic wells were purged and sampled on 28 <br /> September 2000 Fieldwork was performed in,accordance with San Joaquin County Public Health <br /> Services-Environmental Health Division(PHS-EHD) and Central Valley Regional Water Quality <br /> Control Board (CVRWQCB) guidelines for sampling ground water monitoring wells and <br />' investigating underground storage tank (UST) sites <br /> ' 1 <br />' 21 WELL PURGE PROCEDURES <br /> On 20'September 2000 the small and large domestic wells on-site were sampled for volatile organic <br />' compounds To purge the large domestic well, a drain valve was opened on the water storage tank `' f <br /> The'pump wds allowed to cycle on and off for approximately,15 `minutes To purge -the-small ' <br /> domestic well, a faucet between the well and the water holding tank was opened to allow the pump <br /> to cycle for approximately 15 minutes <br /> r <br /> On 28 September 2000, a Solinst water level meter was used to measure the depth to ground water <br />' relative to the tops of the well casings in six monitoring wells in tlie'area of the former UST <br /> locations and one well at 3400 Newton Road The ground water elevation in each well and hydraulic <br /> gradient for the site were determined from,the data collected(Table 1) <br /> I ' <br /> After measuringground water depths, monitoring wells UST-1 through UST-6 were purged using <br /> ra Grundfos submersible purge pump Approximately 100 gallons ofwater were purged from UST-1 and approximately 12 to 15 gallons of,water were removed from rniells UST-2 through UST-6 (a <br /> minimum of three standing casing-water volumes) Ground water,was purged from near the top of <br /> t 3 ti <br /> y i 3 Advanced GeoEnvironmental,Inc' <br /> � 1 <br /> F <br /> , I <br /> , 4 <br />