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July 26, 1996 e�� <br /> Michael Infurna, Sr REHS �1 VCES� <br /> San Joaquin County PHS SEP 13 1996 <br /> Environmental Health Division <br /> P O Box 388 ENVIRONMENTAL HEALTH <br /> Stockton, CA 95201-0388 PERMIT/SERVICES <br /> Re Tenth Quarterly Groundwater Monitoring Report, 1500 Shaw Road, Stockton, CA, Site <br /> Code 1727, AES Project No 145-94009-01 <br /> Dear Mr. Infurna <br /> This report summarizes the monitoring only event conducted on June 27, 1996. Field <br /> activities at the above referenced Canteen facility included monitoring of the seven monitor wells <br /> onsite with the two offsite monitor wells (MW-8 and MW-9 on the U.S Chemical property), <br /> not being monitored due to offsite inaccessibility. <br /> Based on the groundwater elevations from the monitor wells, the groundwater gradient <br /> was 0 31 feet per 100 feet and the general direction of groundwater flow was to the south Fluid <br /> level measurements for this event and historical events are summarized in Table 1 and the <br /> • Potentiometric Surface map is included as Figure 1 Copies of the field data sheets and water <br /> measurement data are included in Appendix A. <br /> Free product was not detected in any of the monitor wells, nor has it ever been. <br /> The groundwater elevation was approximately six feet lower during this monitoring event <br /> than during the previous gauging (04105196) due apparently to a decrease in the recharge The <br /> groundwater elevation for this event was comparable to the three events conducted during 1995, <br /> with groundwater still above the top of the screened interval in each well <br /> S-ncerel- , <br /> Carl E Wills <br /> Ap ie!Hunter <br /> Sciences, Inc. <br /> ��IjUNTER <br /> it r <br /> W J & Associates No 860 <br /> I CeW �T9T£OF CA%��`�4� <br /> +f <br /> 16415 Addison Road, Suite 700+Dallas, Texas 75248-2460+ Tel (214) 380-9555 + Fax (214) 380-5553 <br />