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<br />------------------- <br /> <br />Table 1.3 State of Colorado Classifications and Numeric Standards for the North Fork of the Gunnison River and its Tributaries <br /> <br />- <br />I <br />'-l <br /> <br /> Numeric Standards <br />Stream Segment Classification Physical and Inorganic Metals <br /> Biological mg/L IJg/L <br />2. Mainstem of the North Aq life cold 1 00=6.0 mg/L NH3{ac)=TVS S=0.002 As(ac)=50(Trec) Fe(ch)=WS(dis) Ni{ac/ch)=TVS <br />Fork from the Rec 1 a OO(sp )=7 .0mg/L NH3{ch)=0.02 B=0.75 Cd(ac)=TVS{tr) Fe(ch)=1000(Trec) Se{ac/ch)=TVS <br />confluence of Muddy Water supply pH = 6.5-9,0 CI2(ac)=0.019 N02=0.05 Cd(ch)=TVS Pb(ac/ch)=TVS Ag(ac)=TVS <br />Creek and Anthracite Agriculture Fecal coliform = CI2(ch)=0.011 N03=10 Crlll(ac)=50(Trec) Mn(ac/ch)=TVS Ag(ch)=TVS(tr) <br />Creek to the Black 200/100mL CN=.005 CI=250 CrVI(ac/ch)=TVS Mn(ch)=WS(dis) Zn(ac/ch)=TVS <br />Bridge (41.75 Rd) E.coli=126/100mL S04=WS Cu(ac/ch)=TVS Hg(ch)=0.01 (tot) <br />3. Mainstem of the North Aq life cold 1 00=6.0 mg/L NH3(ac)=TVS S=0.002 As(ch)=100(Trec) Fe(ch)=1000(Trec) Ag(ac)=TVS <br />Fork of the Gunnison Agriculture OO(sp)=7.0 mg/L NH3(ch)=0.02 B=0.75 Cd(ac)=TVS(tr) Pb(ac/ch)=TVS Ag(ch)TVS(tr) <br />River from the Black pH = 6.5-9.0 CI2(ac)=0.019 N02=0.05 Cd(ch)=TVS Mn(ac/ch)=TVS Zn(ac/ch)=TVS <br />Bridge to the Rec2: Oct 1 - Mar 31 CI2(ch)=0.011 N03=100 Crlll(ac/ch)=TVS Hg(ch)=0.01 (tot) <br />confluence with the Oct 1- Mar 31 Fecal coliform = CN=.005 CrVI(ac/ch)=TVS Ni(ac/ch)=TVS <br />Gunnison River. 2000/100mL Cu{ac/ch)=TVS Se{ac/ch)=TVS <br /> Rec 1 a: Ecoli=630/100mL <br /> Apr 1- Sept 30 <br /> Apr 1 - Sept 30 <br /> Fcoli=200/100mL <br /> Ecoli=126/100mL <br />4. All tributaries to the Aq life warm 1 00=6.0 mg/L NH3(ac)=TVS S=0.002 As(ac)=50{Trec) Fe(ch)=WS(dis) Se(ac/ch)=TVS <br />North Fork of the Rec 1a 00{sp)=7.0 mg/L NH3(ch)=0.02 B=0.75 Cd(ac)=TVS Fe(ch)=1000(Trec) Ag(ac)=TVS <br />Gunnison including all Water supply pH = 6.5-9.0 CI2(ac)=0.019 N02=0.05 Cd(ch)=TVS Mn(ac/ch)=TVS Ag(ch)=TVS <br />lakes, reservoirs, and Agriculture Fecal coliform = CI2{ch)=0.011 N03(ac)=10 Crlll(ac)=50(Trec) Mn(ch)=WS{dis) Zn(ac/ch)=TVS <br />wetlands, from the 200/100mL CN=.005 CI(ch)=250 CrVI(ac/ch)=TVS Hg(ch)=0.01 (tot) <br />source of Muddy Ck to Ecoli=126/100mL S04=WS Cu(ac/ch)=TVS Ni(ac/ch)=TVS <br />confluence with Coal <br />Crk. <br /> <br />TVS = Table Value Standard <br />ac = acute <br />ch = chronic <br />dis = dissolved <br />tot = total <br />