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j <br /> n <br /> PM 2: 3 + Working To Restore Nature <br /> 1710 Main Street <br /> Escalon, CA 95320 <br /> Phone (209) 838-3507 <br /> FAX (209) 838-3509 <br /> January 12, 1995 <br /> 150070 01 <br /> Mr Steve Sasson <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> P O BOX 2009 <br /> Stockton, CA 95201 <br /> I <br /> Subject- Fourth Quarter 1994 Groundwater Monitoring and Sampling Report, Chase <br /> Chevrolet, 423 North Madison Street and 424 North Van Buren Street, <br /> Stockton, California <br /> Dear Mr Sasson <br /> This letter report details RESNA Industries' (RESNA's) groundwater monitoring and sampling <br /> activities during the fourth quarter of 1994 at the above referenced site (Plate 1) Activities <br /> during the quarter included monitoring of groundwater, sampling for dissolved hydrocarbons <br /> from eight of the nine monitoring wells on-site, free product removal from well MW-3 and <br /> evaluating the petroleum hydrocarbon concentrations in the groundwater at the site <br /> GROUNDWATER SAMPLING <br /> RESNA personnel performed quarterly groundwater monitoring and sampling on December <br /> 20, 1994 Field work consisted of measuring the depth-to-water, subjectively analyzing the <br /> water from wells MW-1 through MW-9 for the presence of sheen and floating product, <br /> measuring the thickness of floating product, and purging and sampling eight monitoring wells <br /> Well MW-3 was not sampled due to the presence of free product The water table elevation at <br /> the site fell approximately 0 80 feet since the previous monitoring event in August 1994 <br /> Groundwater monitoring data are summarized in Table 1 <br />