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~ k1 <br /> !f _ <br /> n L) <br /> A�CiEsl <br /> July 14, 1997 <br /> Michael Infurna, Sr REHS <br /> San Joaquin County PHS <br /> Environmental Health Division <br /> P O Box 388 <br /> Stockton, CA 95201-0388 <br /> Re Fourteenth Quarterly Groundwater Monitoring Report, 1500 Shaw Road, Stockton, CA, <br /> Site Code 1727, AES Project No 145-94009-01 <br /> • <br /> Dear Mr Infurna <br /> This report summarizes the monitoring event conducted on July 3, 1997 Field activities <br /> at the above referenced Canteen facility included the monitoring of fluid level measurements from <br /> the eight monitor wells onsite (MW-1, MW-2, MW-3, MW-3A, MW-4, MW-5, MW-6, and <br /> MW-7) and the four off site monitor wells (MW-8, MW-9, MW-10, and MW-11) on the U S <br /> Chemical property (Figure 1) <br /> Based on the groundwater elevations from the monitor wells, the groundwater gradient was <br /> 0 24 feet per 100 feet and the general direction of groundwater flow was to the south Fluid level <br /> measurements are summarized in Table 1 and the Potentiometric Surface map is included as <br /> Figure 1 Historical groundwater data are summarized in Table 2 Copies of the field data sheets <br /> and water measurement data are included in Appendix A <br /> Free product was not detected in any of the monitor wells, nor has it ever been The <br /> groundwater elevation was approximately five feet lower during this monitoring event than during <br /> the previous gauging (March 27, 1997) <br /> 2833 Trinity Square, Suite 149 • Carrollton, Texas 75006 •Tel (972) 416-7171 • Fax (972) 416-7175 <br />