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MONITORING AND REPORTING PROGRAM NO. R5-2010-0016 -20- <br />SAN JOAQUIN COUNTY DEPARTMENT OF PUBLIC WORKS <br />NORTH COUNTY LANDFILL <br />SAN JOAQUIN COUNTY <br />Chromium <br />200.7/6010 ---- <br />PQL <br />12 <br />Hexavalent Chromium <br />7199/1636 ---- <br />---- <br />---- <br />Cobalt <br />200.7/6010 ---- <br />PQL <br />---- <br />Copper <br />200.7/6010 ---- <br />PQL <br />140 <br />Cyanide <br />335.4/9010 ---- <br />102 <br />---- <br />Iron <br />200.9/200.8 ---- <br />6202 <br />3,340 <br />Lead <br />200.9/200.8 ---- <br />102 <br />---- <br />Manganese <br />200.7/6010 ---- <br />22 <br />579 <br />Mercury <br />7470A ---- <br />PQL <br />---- <br />Molybdenum <br />200.7/6010 ---- <br />PQL <br />---- <br />Nickel <br />200.9/200.8 ---- <br />PQL <br />138 <br />Selenium <br />200.9/200.8 ---- <br />PQL <br />---- <br />Silver <br />200.7/6010 ---- <br />PQL <br />---- <br />Sulfide <br />9030 ---- <br />7502 <br />---- <br />Thallium <br />200.7/6010 ---- <br />PQL <br />---- <br />Tin <br />200.7/6010 ---- <br />PQL <br />---- <br />Vanadium <br />200.7/6010 ---- <br />302 <br />81 <br />Zinc <br />200.7/6010 ---- <br />362 <br />482 <br />1. "----" means insufficient data to compute CL for this constituent. <br />2. Interim CL equal to 1.5 x highest concentration historically detected in background well, excluding <br />outlier(s). <br />3. Interim CL set at 90% tolerance limit estimated by statistical analysis of historical upstream data, <br />excluding outlier(s). <br />4. Samples shall be filtered prior to performing dissolved inorganics analysis. <br />ORGANIC COCs & APPROVED USEPA ANALYTICAL METHODS <br />(CONCENTRATION LIMITS = MDL) <br />Table G.2 <br />Volatile Organic Compounds (VOCs)' (USEPA Method 8260B) <br />Acetone <br />Acetonitrile <br />Acrolein <br />Acrylonitrile <br />Allyl chloride (3-Chloropropene) <br />Tert-Amyl methyl ether <br />Benzene <br />Bromobenzene <br />Bromochloromethane <br />Bromodichloromethane <br />Bromoform (Tribromomethane) <br />Tert-Butyl alcohol <br />C <br />