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gw l- <br /> - <br /> i <br />�•'sd <br /> f <br /> WATERWORK CORP. -- —� <br /> A RfSNA Company ffffffMA <br /> Environmental Solutions <br /> Through Applied Science, <br /> Engineering&Construction <br /> 1710 Main Street <br /> Escalon, CA 95320 <br /> Phone: (209)838-3507 <br /> Fax; (209)838-3509 <br /> November 25, 1991 <br /> R` <br /> .. <br /> Ms. Mary Ways rr ��.,• <br /> San Joaquin County Public Health Services NOV 2 7 '^1 <br /> Environmental Health Division �lbl (}� ;7 <br /> P.O. Lox 2009 <br /> Stockton, California 95201 <br /> ' r <br /> RE: Monthly Report; Groundwater Monitoring Activities/Remediation System <br /> Performance Report, Tri-Valley Growers, 26200 Nowell Road, Thornton, <br /> California. <br /> Dear Mary: <br /> This letter report updates RESNA Industries (RESNA's) activities at Tri-Valle-, Growers' <br /> Thornton plant(Figure 1)during the month of November, 1991. Activities this month included <br /> monitoring of groundwater, replacing carbon filter 1, and operation and maintenance of the <br /> remediation system. <br /> The remediation system operation, flow rate and drawdown was checked on November 11, <br /> 1991. The system is running and continues to pump at a rate of approxima_.tely 1.4 liters per <br /> minute. <br /> Groundwater monitoring was conducted on November 11, 1991. The groundwater gradient map <br /> reflects a depression created by pumping of the groundwater in monitoring well MW4 (Figure <br /> of_depression.-around.the..pumping well_is-demonstrated-in-this...map.....-_The777 _7 <br /> groundwater monitoring data is summarized in Table 1. <br /> Tv(1T1191.wp <br /> i <br /> i�j <br />