WSP05781

• File Number: 8200.750
• Description: San Juan River General
• State: CO
• Basin: San Juan/Dolores
• Water Division: 7
• Date: 4/1/1994
• Author: Robin Abell
• Title: San Juan River Basin - Water Quality and Contaminants Review - Volume I - April 1994
• Water Supply Pro - Doc Type: Report/Study

Table 15 (CONTI: Stream classifications and water quality standards. Colorado

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Numeric Standards Tempor:~
Basin: los Pinos River Inorganic Metals Modificat '\.
Stream Senment Osscn lion Desin Classifications Phv8ical and Bioloaicm man Pa/l Qualifiers CJ1:
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4. All tributaries to tha Los Pinos River Aq Ufe Cold 1 0.0. = 6.0 mgll NH3 (ac) = TVS S = 0.002 As (ac) = 50 (Trec) Fe (ch) = 300 (dis) Ni (ac/ch) = TVS 00
and Vallecito Reservoir. including all Recreation 1 D.O. (spt = 7.0 mgll NH3 lch) = 0.02 B = 0.75 Cd (ac) = TVS (tr) Fe (chI = 1000 (Trec) Se (ac) = 10 (Trec)
lakes and reservoirs. from the Water Supply pH = 6.5.9.0 CI2 (ac) = 0.019 N02 = 0.05 Cd (chi = TVS Pb (ac/ch) = TVS Ag (ac) = TVS
boundary of the Weminuche Agriculture F. Coli = 200/100 ml CI2 (ch) = 0.011 N03 = 10 Crill (acl = 50 (Trec) Mn (ch) = 50 (dlsl Ag (ch) = TVS (trl
Wilderness Area to the confluence eN = 0.005 CI = 250 CrVI (ac/ch. = TVS Mn (ch) = 1000 (Trect Zn (ac/ch) = lVS
with Bear Creek (T35N. R7W). except 504 = 250 Cu tac/ch) = TVS Hg (ch) = 0.01 ITrec)
for the specific listing in Segment 5;
main stems of Beaver Creek. Ute
Creek. Ute Creek. and Spring Creek
from their sources to their confluences
with the los Pinos River.
5. Mainstem of Vallecito Creek from Aq life Cold 1 D.O. = 6.0 mg/l NH3 lac) = TVS S = 0.002 As (acl = 50 (Trec) Fe (chI = 300 Idis) Ni (ac/ch) = TVS
the boundary of the Weminuche Recreation 1 D.O. (sp) = 7.0 mgll NH3 (chi = 0.02 B = 0.75 Cd (acl = TVS (tr) Fe (ch) = 1000 ITrec) Se lac) = 10 (Trec)-
Wilderness Area to Vallecito Water Supply pH = 6.5-9.0 CI2 (ac) = 0.019 N02 = 0.05 Cd (ch) = 1 Pb (ac/ch) = TVS Ag (ac) = TVS
Reservoir. Agriculture F. Coli = 200/100 ml CI2 lch) = 0.011 N03 = 10 Crill (ac) = 50 (Trec) Mn (ch) = 60 (dis) Ag (ch) = TVS ltr)
CN = 0.006 CI = 260 CrVI (ac/ch) = TVS Mn (chI = 1000 (Trec) 2n (aclch) = TV5
504 = 260 Cu (aclch) = TVS Hg (chi = 0.01 (Tree)
,
6. All tributaries to the Los Pinos UP Aq Life Cold 2 D.O. = 6.0 mgll
River, including all lakes and Recreation 2 D.O. (sp) = 7.0 mgll
reservoirs, from a point immediately Agriculture pH = 6.5-9.0
below the confluence with Bear F. Coli = 2000/1 00 ml
Creek (T35N, R7W) to the Coloradol
New Mexico border. except for the
the specific listing in Segment 4;
all tributaries to the San Juan River
River in La Plata County.

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