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a <br /> Jimco Truck Plaza <br /> Page 2 of 2. <br /> Engineering as duplicate samples (analyzed by North State Environmental). Cambria <br /> provided the analytical data from the split samples collected on October 30, 1996, to <br /> EHD and upon review,EHD accepted the data as submitted. <br /> By letter dated January 26, 2006, EHD directed you to continue sampling MW-1 for <br /> motor oil and consider sampling additional nearby wells for motor oil. To date, no <br /> additional wells have been analyzed for motor oil. Therefore, EHD directs you to include <br /> the analysis for motor oil in future quarterly groundwater sampling events for MW-1, <br /> MW-2, and MW-9, and in soil and groundwater samples from borings/monitoring wells <br /> yet to be advanced. Samples must be analyzed on an instrument with a recent motor oil <br /> curve and daily continuing calibration standards for motor oil, as well,as method blanks <br /> and laboratory control samples (LCS) and LCSD, and matrix spike (MS) and MSD for <br /> motor oil that meet quality control criteria. If sample chromatograms are submitted, they <br /> must be accompanied by chromatograms for the associated continuing calibration <br /> standard and method blank, all at the same scale as the sample chromatograms. <br /> If you have. any questions please contact Vicki McCartney at (209) 468-3456 or by <br /> electronic mail at vmccartney@sjcehd.com. <br /> Donna Heran,REHS,Director <br /> Environmental Health Department / <br /> Victoria L. McCartney,"SeniorREHS Nuel C. Henderson, Jr.,PG <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV <br /> c: Brandon S. Wilken,PG - Cambria <br /> James L.L. Barton, PG- CVRWQCB <br />