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TABLE 4 <br /> ANALYTICAL RESULTS FOR METALS IN GROUND WATER <br /> EPA METHODS 6010, 7420, and 7471A <br /> Western Square Industries <br /> 1621 North Broadway, Stockton, California <br /> mg/l <br /> Sample Mercury Lead Chromium Nickel Zinc Copper Silver Cadmium <br /> ID (H ) (Pb) (Cr) (Ni) (Zn) (Cu) (A ) (Cd) <br /> BI <0.0002 0.40 3.20 0.41 0.97 2.85 <0.01 0.23 <br /> B2 <0.0002 0.63 3.60 0.44 0.97 3.65 <0.01 0.23 <br /> B3 1 <0.0002 0.12 0.90 0.92 0.61 0.78 1 <0.01 0.89 <br /> MCL 0.002 0.015 0.05 0.1 - - - 0.005 <br /> PRG - 0.004 0.18(CrIII) 0.73 11 1.4 0.18 0.018 <br /> 0.00016 (CTVI) <br /> MCL for lead is the federal action level, California has no established MCL. <br /> -indicates lack of an established value. <br /> Bold numerals indicate that the concentration exceeds one or both standards <br /> Advanced GcoEnvironmental,Inc, <br />