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Forward Inc. — Revised Designated Levels for Class III Landfill Unit(s) <br />Constituent <br />Water Quality Goal <br />Attenuation <br />Factor <br />Soluble <br />Designated Level <br />(m2/1 of extract) <br />Value (m /1) <br />Reference <br />Antimony <br />0.006 <br />U. S. EPA Primary MCL <br />100 <br />0.06 <br />Arsenic <br />0.005 <br />Proposition 65 No -Significant -Risk Level <br />100 <br />0.05 <br />Barium <br />1 <br />California Primary MCL <br />100 <br />10 <br />Beryllium <br />0.004 <br />U. S. EPA Primary MCL <br />100 <br />0.04 <br />Cadmium <br />0.005 <br />U. S. EPA Primary MCL <br />100 <br />0.05 <br />Chromium (VI) <br />0.05 <br />California Primary MCL <br />100 <br />0.5 <br />Cobalt <br />0.05 <br />Water Quality for Agriculture <br />100 <br />0.5 <br />Copper <br />0.2 <br />Water Quality for Agriculture <br />1000 <br />20 <br />Lead <br />0.015 <br />U. S. EPA Primary MCL "action level" <br />1000 <br />1.5 <br />Mercury <br />0.002 <br />California & U. S. EPA Primary MCL <br />100 <br />0.02 <br />Molybdenum <br />0.01 <br />Water Quality for Agriculture <br />100 <br />0.1 <br />Nickel <br />0.1 <br />U. S. EPA Primary MCL <br />100 <br />1 <br />Selenium <br />0.01 <br />California Primary MCL <br />100 <br />0.1 <br />Silver <br />0.05 <br />California Primary MCL <br />100 <br />0.5 <br />Thallium <br />0.0005 <br />U. S. EPA MCL Goal <br />100 <br />0.005 <br />Vanadium <br />0.02 **- <br />U. S. EPA Health Advisory <br />100 <br />0.2 <br />Zinc <br />2 <br />Water Qualily for Agriculture <br />1000 <br />200 <br />Values in boldface type indicate corrections to Forward's 27 January 1993 submittal. <br />* At the discahrger's discretion, may be met based on Total Chromium analyses. <br />LlJ <br />il <br />