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Project No. 8062.GWTF Ev'guation of Water Quality/Frewet Road,Lathrop-CA October 10, 2001 <br /> TABLE 2 <br /> LABORATORY ANALYSIS OF WATER SAMPLES <br /> LATHROP WATER-TREATMENT PLANT PROPERTY <br /> Lathrop,California <br /> July 26,2001 <br /> VOCs <1 to<5 <1 to<5 NS <1 to<5 NS NS <1 to C5 <br /> DDE 0.023 <0.02 NS <0.02 NS NS <p.02 <br /> Antimony <0.006 <0.006 NS "^<0.006 NS NS <0.006 <br /> Arsenic 0.0069 0.018 NS 0.078 NS NS <0.005 <br /> Barium 0.074 0.29 NS 3.5 NS NS 0.12 <br /> Beryllium <0.01 <0.01 NS 0.013 NS NS <0.004 <br /> Cadmium <0.005 <0.005 NS <0.005 NS NS <0.005 <br /> Chromium <0.02 <0.02 NS 0.28 NS NS <0.02 <br /> Cobalt <0.05 <0.05 NS 0.22 NS NS <0.05 <br /> Copper <0.05 <0.05 NS 0.49 NS NS <0.05 <br /> Lead <0.005 0.0064 NS 0.075 NS NS <0.005 <br /> Mercury <0.0008 <0.0008 NS <0.0008 NS NS <0.0008 <br /> Mol um <0.05 <0.05 NS <0.05 NS NS <0.05 <br /> Nickel <0.05 <0.05 NS 0.42 NS NS <0.05 <br /> Selenium <0.005 <0.005 NS <0.005 NS NS <0.005 <br /> Silver <0.01 <0.01 NS <0.01 NS NS <0.01 <br /> Thallium <0.005 <0.005 NS 0.0051 NS NS <0.005 <br /> Vanadium <0.05 0.15 NS 1.1 NS NS <0.05 <br /> Zinc <0.05 0.11 NS 1.7 NS NS <0.05 <br /> Nitrate-N 28 <0.5 NS 4.3 NS NS 1.5 <br /> Ammonia-N <0.5 <0.5 NS <0.5 NS NS <0.5 <br /> Phenolics <0.1 <0.1 NS <0.1 NS NS <0.1 <br /> Kjeldahl-N <1.0 <1.0 NS 1.5 NS NS <1.0 <br /> Chloride 172 1 132 1 NS 3501 1 NS NS 93 <br /> Total Coliform <2 <2 NS 13 NS NS >1,600 <br /> Bacteria <br /> Fecal Coliform <2 <2 NS <2 NS NS 50 <br /> Bacteria <br /> P-1 = Groundwater sample form piezometer. <br /> SJR-1 = San Joaquin River sample <br /> 1 = USEPA Region 9 Preliminary Remediation Goal for residential tap water. <br /> NS = Not sampled due to destroyed, damaged or not found piezometer. <br /> µg/l- = microgram per liter,equivalent to parts per billion(ppb). <br /> mg(L = milligrams per liter,equivalent to parts per million(ppm). <br /> NA = Not applicable. <br /> mpn = Most probable number(coliforms per 100 milliliters). <br /> TERRASEARCH, inc. Page 5 <br />