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Working To Restore Nature <br /> Pik 1. 13 <br /> 1710 Main Street <br /> Escalon, CA 95320 <br /> Phone (209) 838-3507 <br /> FAX (209) 838-3509 <br /> July 13, 1994 <br /> Ms Mary Meays <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> P.O Box 2009 <br /> Stockton, CA 95201 <br /> RE Second Quarter 1994 Groundwater Monitoring Activities/Remediation System <br /> Performance Report, Tn-Valley Growers, 26200 Nowell Road, Thornton, California <br /> Dear Ms Meays <br /> This letter report updates RESNA Industries, Inc (RESNA) activities at Tri-Valley Growers' <br /> Thornton plant (Figure 1) during the second quarter of 1994 Activities during the quarter <br /> included monitoring of groundwater, sampling for dissolved hydrocarbons from the <br /> monitoring wells on site, treating all purge water from the monitoring wells through the <br /> remediation system, operation of the remediation system, and analysis of samples from the <br /> treatment system influent (well MW4) and carbon filter effluents Remediation system <br /> operation began on May 13, 1991 <br /> GROUNDWATER MONITORING & SAMPLING <br /> Groundwater monitoring was conducted in April, May and June 1994 Groundwater gradient <br /> maps illustrate a cone of depression and an area of influence created by pumping of the <br /> groundwater in monitoring well MW4 (Figures 2, 3 and 4) The water table (as measured <br /> in all wells except MW4) has dropped an average of 2 99 feet since March 1994 <br /> Groundwater monitoring data are summarized in Table 1 Groundwater monitoring logs are <br /> included in Attachment A <br /> � 1521021QRTLYI2QR 1994 FNI <br />