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r��ria <br /> 1117 Lone Palm Avenue <br /> Suite B <br /> y %TC <br /> Modesto, CA 95351 <br /> d 209.579.2221 <br /> Fax 209.579.2225 <br /> August 2, 2000 <br /> 54.62574.0002 ` <br /> Mr. Jeff Wong <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 E. Weber Avenue, 3rd Floor <br /> Stockton, CA 95202 <br /> Subject: Site Status Report, Third Quarter 2000, Smiths Canal Pump Plant, Fontana Street <br /> and Smiths Canal, Stockton, California, Site Code 1102 <br /> Mr. Wong: <br /> This letter report summarizes groundwater monitoring activities at the above referenced site <br /> (Figure 1) during the third quarter of 2000. These activities included monitoring fluid levels in all <br /> site wells and collecting groundwater samples from wells MW 1, MW2, MW3, MW4, MW5, and <br /> ?+` MW6 for laboratory analysis. <br /> FIELD WORK <br /> On July 14, 2000, static fluid levels were measured in monitoring wells MW1 through MW6. The <br /> water table elevation increased an average of 0.48 feet since January 1999. Table 1 summarizes <br /> the water level data collected during the reporting period and provides previous data for <br /> comparison. <br /> J <br /> A groundwater gradient map was created for the July 14, 2000 monitoring event (Figure 2) using <br /> groundwater elevation data from all the wells monitored. Figure 2 depicts a generally north <br /> groundwater flow direction at a magnitude of approximately 0.008 ft/ft or 44 ft/mile. <br /> Floating petroleum product has previously been observed in well MW4. On July 14, 2000, <br /> only a slight, unmeasurable sheen was observed in well MW4. No free product was recovered <br /> from the well because the quantity was too small to be collected into a bailer. Table 2 <br /> summarizes the product thickness measurements and volume of product removed from previous <br /> monitoring events. <br /> Groundwater samples were collected on July 14, 2000 from all wells, MW 1 through MW6. Prior <br /> to sample collection, each sampled well was purged of a minimum of three well casing volumes of <br /> `r==' water. Purged water was contained in labeled 55-gallon drums(DOT I), and stored on site. <br /> w:162574.02*arlly�3gmr2000.doc 1 <br />