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T bl 15 S If t. d Ik drd Cl d V> . - , tream c ass lca Ions an water qua y stan a -. oora 0 C"-'>. Numeric Standards Temporary <::) Basin: Ssn Juan River I Inorganic Metals Modifieatio~~. Stream Seament Deserlntlon Desi'" Classifications Physieal and Biolo...ical mlt/l 'Mn Qualifiers , 1. Mainstem of the Navajo River and Aq Life Cold 1 b.o. = 6.0 mgll NH3 (acl = TVS S = 0.002 As (ac) = 50 (Trecl Fe (ch) = 300 (dis) Ni (ac/chl = TVS ,,,,- the little Navajo River, including all Recreation 1 D.O. (spl = 7.0 mg/I NH3 (chi = 0.02 B = 0.75 Cd (sc) = TVS (tr) Fe (chi = 1000 (Trec) So (ac) = 10 (Trec) 0), tributaries. Iskes, and reselVOlrs, from Water Supply pH = 6.5-9.0 CI2 (ac) = 0.019 N02 = 0.05 Cd (ch) = TVS Pb (ac/ch) = TVS Ag (ac) = TVS the boundary of the South San Juan Agriculture F. Coli = 2ooJ1 00 ml CI2 (ch) = 0.011 N03 = 10 Crill (acl = 50 (Trecl Mn (ch) = 50 (dia) Ag (ch) = TVS (tr) Wilderness Area to the Ssn Juan- CN = 0.005 CI = 250 CrVl lac/chI = TVS Mn (eh) = 1000 (Tree) 2n (se/eh) = TVS Chams diversion. S04 = 250 Cu (ac/ch) = TVS Hg (ch) = 0.01 (Treel 2. Mainstem of the Navajo River from Aq life Cold 1 D.O. = 6.0 mgll NH3 (ac) = TVS S = 0.002 As (chi = 50 Fe (chi = 300 (dis) Hg (chi = 0.05 An metals are the San Juan-Chams diversion to the Recreation 1 D.O. (sp) = 7.0 mgJl NH3 (ch) = 0.02 B = 0.75 Cd Ichl = 0.4 Fe (ch) = 1200 CTrec) NI (ch) = 50 Tree unless Colorado/New Mexico border near Water Supply pH = 6.5-9.0 Cll (ae) = 0.019 N02 = 0.05 Crill (chi = 50 Ph (chl = 5 Se (ch) = 10 otherwise Edith. Colorado and from the Agriculture F. Coli = 200J100 mt CI2 lchl = 0.011 N03 = 10 CrVI (ch) = 25 Mn lch) = 50 Idis) Ag (ch) = 0.1 noted. ColoradolNew Mexico border to the CN = 0.005 CI = 250 Cu (eh) = 14 Mn lchl = 1000 Zn (eh) = 50 confluence with the San Juan RiVer. S04 = 250 3. Mainstem of the little Navajo River UP Aq life Warm 2 D.O. = 5.0 mgll from the San Juan-Chama diversion to Recreation 2 pH = 6.5-9.0 the confluence with the Navajo River; Agriculture F. Coli = 2000/100 ml all tributaries to the Navajo River and the Uttle Navajo River, including all lakes and reservoirs, from the San Juan-Chama diversions to the confluence with the San Juan River. 4. All tributaries to the Ssn Juan River. Aq Life Cold 1 D.O. = 6.0 mgJl NHa (acl = TVS 5 = 0.002 As (acl = 50 (Tree) Fe (ch) = 300 (dis) Ni (ac/chl = TVS Rio Blanco. snd Navajo River Recreation 1 D.O. lsp) = 7.0 mgll NHa (chi = 0.02 B = 0.75 Cd lac) = TVS (tr) Fe (ch) = 1000 (Trec) 5e (acl = 10 (Tree) including all lakes and reservoirs. Water Supply pH '" 6.5-9.0 CI2 (acl = 0.019 NO:.! = 0.05 Cd {chI = TVS Pb lac/chI = TV5 Ag (sc) = TVS which are within the Weminuehe Agriculture F. Coli = 200/100 ml CI2 (chi = 0.011 NOa = 10 Crill (ac) = 50 ITrec) Mn (chi = 50 (disl Ag {chI = TVS (tr) Wilderness area and South San Juan CN = 0.005 CI = 250 CrVI (ac/chl = TVS Mn (chi = 1000 (Trec) Zn lac/ch) = TVS Wilderness Area. S04 = 250 Cu lac/chi = TVS Hg (chi = 0.01 (Trecl 5. Mainstem of the San Juan River Aq life Cold 1 D.O. = 6.0 mg/I NH3 {ael = TVS S = 0.002 As lac} = 50 (Trec) Fe (chI = 300 {dis} Ni lac/chi '" TVS and the East Fork and West Fork of Recreation 1 D.O. lsp) = 7.0 mg/I NHa (chi = 0.02 B = 0.75 Cd lac) = TVS (tr) Fe (chi = 1000 (Trec) Se (ael = 10 (Tree) the San Juan River. from the boundary Water Supply pH '" 6.5-9.0 CI:.! (ac) = 0.011 N02 = 0.05 Cd {chI = TVS Pb lac/chI = TVS Ag (acl = TVS of the Weminuche Wilderness Area Agriculture F. Coli =- 200J100 ml CI2 (ch) '" 0.011 NOa = 10 Crill lac) = 50 (Tree) Mn (chi = 50 {disl Ag {chi = TVS (tr) (West Forkl and the source (East Forkl CN = 0.005 CI = 250 CrVI(ac/ch) = TVS Mn (chi = 1000 (Trec) Zn (ac/chl = TVS to the confluence with Fourmile Creek, S04 = 250 Cu (ac/chl = TVS Hg lchl = 0.01 (Tree) including all tributaries, lakes and reservoirs except for tributaries, lakes and reservoirs included in Segment 4.