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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 Segment COGLTNF02 <br />Dissolved Oxygen (DO)= 6 mg/l, minimum(? mg/l, minimum during s awning) <br />H=6.5-9su <br />ce,., 7 rss .,.. = onn ~,.v.r;P~ n nn ,ti,t <br />Un-ionized ammonia acute =TVS <br />Un-ionized ammonia chronic = 0.02 mg/1 <br />Chlorine acute =0.019 mg/1 <br />Chlorine chronic=O.Ollm /1 <br />Free Cyanide acute = 0.005 m /1 <br />Sulfide chronic = 0.002 mg/1 <br />Boron chronic = 0.75 mg/1 <br />Nitrite = 0.05 mg/1 <br />tv:r.n rn = to moll <br />Chloride chronic = 250 mg/1 I <br />Sulfate chronic = 250 mz/] <br />Total Recoverable Arsenic acute = 50 u /] <br />Dissolved Cadmium acute for [rout and Dissolved Cadmium chronic =TVS <br />Total Recoverable Trivalent Chromium acute = 50 u /I <br />Dissolved Hexavalent Chromium acute and chronic=TVS - ~ _ <br />_ Dissolved Co er acute and chronic =TVS <br />Dissolved Iron chronic = 300 ug/l <br />Total Recoverable Iron chronic = 1000 ug/1 <br />Dissolved Lead acute and chronic =TVS <br />Dissolved Manganese chronic = 50 ug/1 <br />Dissolved Manganese acute =TVS <br />Total Mercury chronic =0.01 ug/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 3/9/2004 <br />