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<br />Table 15 (CONT): Stream classifications and water quality standards. Colorado <br /> <br />v. <br />W <br /> <br /> Numeric Standards Temporary <br />Basin: San Juan River Inorganic Metals Modifications <br />Stream Senment Oescrintlon Desl_ Classifications I Phvsicaland Biolonlcal " mgn , , , ""n , Qualifiers <br />6. Mainstem of the San Juan River Aq Life Cold 1 D.O. = 6.0 mgll NHa (ac) = TVS S = 0.002 As (ch) = 50 Fe (ch) = 2400 Se (chi = 20 All metals are <br />from the confluence with Founnile Recreation 1 D.O. (spt = 7.0 mgll NH3 (chI = 0.02 B = 0.75 Cd (chI = 0.4 Ph (chI = 10 Ag (chI = 0.1 Trec unless <br />Creek to Navajo Reservoir. Agriculture pH = 6.5-9.0 Cl2 (acl = 0.019 N02 = 0.05 CrIll (chI = 100 Mn (chI = 1000 Zn (chi = 50 otherwise <br /> F. Coli = 2001100 ml CI2 (ch) = 0.011 N03 = 100 CrVI (ch) = 25 Hg {chI = 50 noted. <br /> CN = 0.005 CU {chI = 20 Ni (chI = 50 <br />7. Navajo Reservoir (portion in Aq life Warm 1 D.O. = 5.0 mg/l NH3 (ac) = TVS 5 = 0.002 As (ch) = 50 Fe lchl = 300 (dis) Hg (chi = 0.05 All metals are <br />Colorado). Recreation 1 pH = 6.5-9.0 NHa (chI = 0.02 B = 0.75 Cd (ch) = 0.4 Fe Ich) = 1000 Ni (ch) = 50 Trec unless <br /> Water Supply F. Coli = 2001100 ml CI2 (ac) = 0.019 N02 = 0.5 Crill (chI = 50 Pb (chI = 4 Se (chI = 10 otherwise <br /> Agriculture C12 (chI = 0.011 N03 = 10 CrVl (ch) = 25 Mn (chI = 50 (disl Ag lchl = 0.1 noted. <br /> CN = 0.005 CI = 250 Cu (ch) = 5 Mn (ch. = 1000 Zn (chI = 50 <br /> 504 = 250 <br />9. Mainstem of the Rio Blanco. Aq life Cold 1 D.O. = 6.0 mgll NHa (ae) = TVS S = 0.002 As (ac) = 50 (Tree) Fe (ch) = 300 (dis) Ni (ac/chl = TV5 <br />including all tributaries, lakes, and Recreation 1 D.O. lsp) = 7.0 mgll NHa (ch) = 0.02 B = 0.75 Cd (acl = TVS (tr) Fe (ch) = 1000 (Tree) Se lac) = 10 (Tree) <br />reservoirs, from the bOUndary of South Water SupplV pH = 6.5-9.0 Cb lac) = 0.019 N02 -= 0.05 Cd (ch) = TVS Pb (ac/ch) = TV5 Ag (80) = TVS <br />San Juan Wildemess Area to the Agriculture F. Coli -= 200/1 00 ml Cb (ch) = 0.011 N03 = 10 Crill (ac) = 50 (Trec) Mn (ch) = 50 (dis) Ag (ch) = TV5 (tr) <br />confluence with the San Juan River. CN = 0.005 CI = 250 CrVI (ac/chl = lVS Mn (ch) = 1000 (Trec) Zn (ac/ch) = TVS <br />except for the specific listing In 504 = 250 Cu (ac/ch) = TVS Hg (chI = 0.01 (Treel <br />Segment 10. <br />"u", , , " ,,"" - ,,' " , ,', "- , "" " .. , , "','", " , ", " , n ""' , " <br />10. Mainstem of the Rito Blanco River UP Aq Ufe Cold 2 D.O. = 6.0 mgll <br />from Echo Ditch to the confluence Recreation 2 D.O. (sp) = 7.0 mon <br />with the Rio Blanco River. Agriculture pH = 6.5.9.0 <br /> F. Coli = 200/100 ml <br />11. All tributaries to the San Juan UP Aq Life Warm 2 0_0. = 5.0 mgll <br />River in Archuleta County, including Recreation 2 pH = 6.5-9.0 <br />all lakes and reservoirs, except for Agriculture F. Coli = 2000/100ml <br />specific listings in Segments 1. 4. <br />5. and 9_ <br />