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t <br /> s 1? <br /> Ilk <br /> page.2, 1648 Shaw Road <br /> Routine quarterly groundwater monitoring and sampling must continue at this site until <br /> notified otherwise by this agency. Due.to decreasing groundwater levels, monitoring <br /> wells MW-1 thru MW-3 have not been sampled since February 2002, and wells MW-4 <br /> thru MW-7 have been sampled intermittently. Monitoring well MW-8 was built to total <br /> depth of 95 feet below surface grade and stili has water in it to allow for sampling. Two <br /> reported monitoring and sampling events have indicated that the contaminant plume has <br /> not migrated vertically to the depth of MW-8. Additional shallow groundwater'monitoring <br /> wells may be needed if groundwater levels do not return to the depths they were when <br /> the current wells were installed. , <br /> If you have any questions or comments, please call Lori Duncan at(209)468-0337. <br /> Donna Heran, RENS, Director <br /> Environmental Health Department <br /> Lori Duncan, Senior REHS Nuel C. Henderson, Jr: RG <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV = <br /> cc: James Barton, CVRWQCB <br /> Robert Marty, AGE <br />