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Project No. 8062.GWTF Evaluation of Water Qualily/Frewet Road,Lathrop,CA <br /> October 10,2001 <br /> TABLE 2 <br /> LABORATORY ANALYSIS OF WATER SAMPLES <br /> LAT'HROP WATER-TREATMENT PLANT PROPERTY <br /> Lathrop,California <br /> July 26,2001 <br /> .'.. <br /> VOCs <1 to c5 <1 to<5 NS <I to v NS NS <I to<5 <br /> DDE 0.023 <0.02 NS <0.02 NS NS <0.02 <br /> Antimo <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 /> B Ilium 004 <br /> <0.01 -*0.01 NS 0.013 NS NS 0.005 <br /> Cadmium -*0.005 <0.005 NS <0.005 NS NS <br /> Chromium <0.02 <0.02 NS 0.28 NS NS <0.02 <br /> Cobalt <0.05 <0.05 NS 0.22 NS NS <br /> <0.05 NS 0.49 NS <br /> Lead 0.0064 NS 0.075 NS NS <br /> <0.0008 <br /> Me <0.0008 <0.0008 NS <0.0008 NS NS <br /> Mol um 05 <0.05 NS <0.05 NS NS -*0.05 <br /> Nickel <0.05 <0.05 NS _ 0.42 NS NS <br /> Selenium <0.005 <0.005 NS .40.005 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.D5 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 43 NS NS 1.5 <br /> Ammonia-N <0.5 <0.5 NS <0.5 NS NS <0.5 <br /> Phenolics <0.1 <D.I NS <0.1 NS NS en I <br /> K'eldahl-N <br /> c1.0 <1.0 NS 1.5 NS NS <1.0 <br /> Chloride 172 132 NS 1 350 1 NS 1NS 93 <br /> Total Coliform <2 <2 NS 13 NS NS >1,600 <br /> Bacteria NS NS 50 <br /> Fecal Coliform <2 <2 NS <2 <br /> Bacteria <br /> P-1 = Groundwater sample form piezometer. <br /> SJR-1 = San Joaquin River sample <br /> I 1JSFPA 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 /> Page 5 <br /> TERRASEARCH, inc. <br />