Laserfiche WebLink
3164 Goid Camp Drive <br /> Delta Suite 200 <br /> �,//. Rif Cho a CA 95670 <br /> // Environmental 916 638-20852085 <br /> Consultants,Inc FAX 9161638-8385 <br /> September 9, 1996 9PINYXI <br /> DEC 2 '7 1995 <br /> Ms Marla Guensler <br /> Exxon Company, U S A ENVIRONMENTAL HEALTH <br /> 2300 Clayton Road, Suite 640 PERMIT/SERVICES <br /> Concord, California 94520 <br /> Subject Quarterly Ground Water Monitonng Report, Fourth Quarter 1996 <br /> Former Exxon Service Station No 7-3708 <br /> 2705 Country Club Boulevard <br /> Stockton, California <br /> Delta Project No D093-809 <br /> Dear Ms Guensler <br /> Delta Environmental Consultants, Inc (Delta), has been authorized by Exxon Company, <br /> U S A (Exxon), to conduct quarterly ground water monitoring at former Exxon Service Station <br /> No 7-3708, Iocated at 2705 Country Club Boulevard, Stockton, California Tlus letter report presents <br /> the results of quarterly ground water monitoring and sampling conducted on October 23, 1996 The <br /> location of the site is shown in Figure 1 and site features are illustrated in Figure 2 The work <br /> conducted at the site by Delta was performed in accordance with the field methods and procedures <br /> described in Enclosure A <br /> Ground Water Table Elevation Flow Direction, and Hydraulic Gradient <br /> On October 23, 1996, ground water measurements were recorded in monitoring wells MW-1 through <br /> MW-8 Recorded measurements in the monitoring wells indicate depth to ground water beneath the <br /> site ranged from 9 71 (MW-5)to 12 51 (MW-2) feet below the top of the well casings Ground water <br /> table elevations have decreased approximately one foot since the previous monitoring event conducted <br /> in July 1996 Cumulative ground water table measurements are presented in Table 1 A water table <br /> contour map constructed from the measurements recorded on October 23, 1996, is included as Figure / <br /> 3 The water table contours indicate ground water at the site generally flowed toward the northeast ✓ <br /> with an isolated high in the vicinity of MW-3 Ground water east of the site flowed toward the <br /> southeast toward MW-8 The hydraulic gradient at the site was less than 0 01 ✓ <br /> Sub echve Analysis <br /> No liquid-please petroleum hydrocarbons or hydrocarbon sheens were present in the wells during the <br /> fourth quarter 1996 site visit <br /> Ground Water Analvhcal Results <br /> Ground water samples collected from monitoring wells MW-1 through MW-8 on October 23, 1996, <br /> were submitted to Sequoia Analytical (a California-certified laboratory) for analysis of benzene, <br /> Providing a Competitive Edge <br />