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Mountain Coal and Bear Coal Water Quality Assessment CO-0038776 and CO-0044377 <br />Table A-2 <br />In-stream Standards for Stream Se meat COGUNF02 <br />- ~ - ~Physicdl and Binla ical ~ - - -- ' <br />Dissolved Ox en DO = 6 m 1, minimum 7 m 1, minimum durin s awnin <br />H=6.5-9su <br />Fecal Coliform = 200 colonies/100 ml <br />-.7aorganic <br />Un-ionized ammonia acute =TVS <br />Un-ionized ammonia chronic = 0.02 m 1 <br />Chlorine acute = 0.019 m I <br />Chlorine chronic = 0.011 m 1 <br />Free C anide acute = 0.005 m 1 <br />Sulfide chronic = 0.002 m /1 <br />Boron chronic = 0.75 ms!1 <br />Nitrite = 0.05 m /1 <br />Nitrate = 10 m <br />Chloride chronic = 250 m 1 <br />Sulfate chronic = 250 m <br />Metals ; . <br />Total Recoverable Arsenic acute = 50 u 1 <br />Dissolved Cadmium acute for trout and Dissolved Cadmium chronic =TVS <br />Total Recoverable Trivalent Chromium acute = 50 u '1 <br />Dissolved Hexavalent Chromium acute and chronic =TVS <br />Dissolved Co er acute and chronic =TVS _ _ <br />Dissolved Iron chronic = 300 u I <br />Total Receverable Iron chroric = 1000 u /1 <br />Dissolved Lead acute and chronic =TVS <br />Dissolved Man anew chronic = 50 u 1 <br />Dissolved Man anew acute =TVS <br />Total Merc chronic = 0.01 u 1 <br />Dissolved Nickel acute and chronic =TVS <br />Dissolved Selenium acute and chronic =TVS <br />Dissolved Silver acute and Dissolved Silver chronic for trout =TVS <br />Dissolved Zinc acute and chronic =TVS <br />Appendix A Page 5 of 20 Last Revised 3!912004 <br />