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Basic Standards and Methodologies for Surface Waters 5 CCR <br />1002-31 (Regulation 31 -Colorado Water Quality Control Division) <br />Table III and IV <br />Table 2 <br />Surface Water <br />Water Quality <br />Standards <br />May Day Idaho Mine Complex <br />Sunrise <br />Mining, LL <br />C <br />932017 <br />Units <br />T=TVS(CS <br />Physical <br />Temperature <br />1)°C <br />Dissolve <br />Physical <br />Oxygen <br />D O =6 <br />6 <br />m l <br />Ph sical <br />pH <br />6-9 <br />Physical <br />e Coli <br />205/100 <br />in 1 <br />Inorganic <br />Ammonia <br />NH3 <br />TVs <br />Inor anic <br />Chloride <br />C12 (ac) <br />0 019 <br />in 1 <br />Inor an <br />Chloride <br />C12 (ch) <br />0 011 <br />mg/1 <br />Inorganic <br />Cyanide <br />CN <br />0.005 <br />mg/1 <br />Inor anic <br />Sulfide <br />S <br />00 <br />in 1 <br />Inor anic <br />Boron <br />B <br />0.75 <br />in <br />Inorganic <br />Nitrite <br />NOZ <br />0.05 <br />mg/I <br />Inorganic <br />Nitrate <br />NO, <br />10 <br />mg/1 <br />Inorganic <br />Chlond <br />Cl <br />250 <br />mg/1 <br />Inorganic <br />u tate <br />so, <br />WS <br />Metals <br />Aluminum <br />Al <br />0 087 <br />mg/1 <br />temporary mod Ac(ch) hybrid <br />Metals <br />Arsenic <br />As (ac) <br />340 <br />ug/I <br />expiration dte of 12.31.21 <br />Metals <br />Arsenic <br />As (ch) <br />0 15 <br />u <br />Metals <br />Cadmium <br />Cd (ac) <br />TVS (tr) <br />U <br />Metals <br />Cadmmm <br />Cd (ch) <br />0 25 <br />ug/1 <br />Metals <br />Chromium <br />CrIII (ch) <br />uP�l <br />Metals <br />Chromium <br />CrIII(ac) <br />TVS <br />u 1 <br />Metals <br />Cobalt <br />Co <br />NS <br />Metals <br />Copper <br />Cu <br />5 <br />u l <br />Metals <br />Iron <br />Fe (ch) <br />WS(dis) <br />u 1 <br />Metals <br />Iron <br />Fe(ch) <br />1 <br />mg/I <br />Metals <br />Lead <br />Pb <br />12 <br />u 1 <br />Metals <br />Manganese <br />Mn (ac) <br />1 3 <br />mg/I <br />Metals <br />Manganese <br />Mn(ch) <br />WS(dis) <br />ug/1 <br />Metals <br />Mercury <br />Hg <br />0.01 (tot) <br />mo <br />Metals <br />Molybdenu <br />Mo <br />NS <br />ug/1 <br />Metals <br />Nickel <br />Ni <br />0 029 <br />mg/l <br />Metals <br />Selenium <br />Se <br />0 0046 <br />mg/1 <br />Metals <br />Silver <br />Ag (ac) <br />(II <br />0 0001 <br />m 1 <br />Metals <br />Silver <br />Ag (ch) <br />TS <br />ug/1 <br />Metals <br />Thallium <br />Th <br />0 015 <br />in I <br />Metals <br />Uranium <br />Ur <br />0.03 <br />mg/I <br />Metals <br />Vanadium <br />V <br />0.1 <br />mg/1 <br />Metals <br />Zinc <br />Zn (ac) <br />0.069 <br />mg/l <br />lvretalc <br />I Zinc <br />I Zn (ch) <br />TV S (se) <br />ury1 <br />Basic Standards and Methodologies for Surface Waters 5 CCR <br />1002-31 (Regulation 31 -Colorado Water Quality Control Division) <br />Table III and IV <br />