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COLORADO
<br />;\,�• Department of Public
<br />x876 Health b Environment
<br />Water Quality Assessment
<br />Outfalls 002, 011, 017, 020, 021, 023 and 025
<br />Parameter
<br />Q, (cfs)
<br />02 (cfs)*
<br />Q3 (cfs)
<br />M,
<br />M3
<br />M2
<br />Cd, Dis (pg/l)
<br />0
<br />20
<br />20
<br />0
<br />0.5
<br />0.5
<br />Cr+3, Dis (pg/l)
<br />0
<br />20
<br />20
<br />0
<br />88
<br />88
<br />Cu, Dis (pg/1)
<br />0
<br />20
<br />20
<br />0.89
<br />11
<br />11
<br />Fe, TR (pg/1)
<br />0
<br />20
<br />20
<br />600
<br />1000
<br />1000
<br />Pb, Dis (pg/l)
<br />0
<br />20
<br />20
<br />0.0083
<br />3.2
<br />3.2
<br />Ni, Dis (pg/1)
<br />0
<br />20
<br />20
<br />2.4
<br />62
<br />62
<br />Se, Dis (pg/1)
<br />0
<br />20
<br />20
<br />0.77
<br />4.6
<br />4.6
<br />Ag, Dis (pg/l)
<br />0
<br />20
<br />20
<br />0
<br />0.46
<br />0.46
<br />Zn, Dis (pg/1)
<br />0
<br />20
<br />20
<br />1.9
<br />147
<br />147
<br />*Flow for process water outfalls combined
<br />Table A -8e
<br />Acute WQBELs for Aquatic Life Standards for the Yampa River
<br />Outfalls 002, 011, 017, 020, 021, 023 and 025
<br />Parameter
<br />Q, (cfs)
<br />Q2 (cfs)*
<br />Q3 (cfs)
<br />M,
<br />M3
<br />M2
<br />As, Dis (pg/1)
<br />0
<br />20
<br />20
<br />0.38
<br />340
<br />340
<br />Cd, Dis (pg/l)
<br />0
<br />20
<br />20
<br />0
<br />3.3
<br />3.3
<br />Cu, Dis (pg/l)
<br />0
<br />20
<br />20
<br />0.89
<br />16
<br />16
<br />Pb, Dis (pgA)
<br />0
<br />20
<br />20
<br />0.0083
<br />82
<br />82
<br />Mn, Dis (pg/1)
<br />0
<br />20
<br />20
<br />50
<br />3207
<br />3207
<br />Ni, Dis (pg/1)
<br />0
<br />20
<br />20
<br />2.4
<br />562
<br />562
<br />Se, Dis (pg/1)
<br />0
<br />20
<br />20
<br />0.77
<br />18.4
<br />18
<br />Ag, Dis (pg/l)
<br />0
<br />20
<br />20
<br />0
<br />2.9
<br />2.9
<br />Zn, Dis (pg/1)
<br />0
<br />20
<br />20
<br />1.9
<br />195
<br />195
<br />*Flow for process water outfalls combined
<br />Table A -8e
<br />Chronic WQBELs for Human Health and Agricultural Standards for the Yampa River
<br />Outfalls 002, 011, 017, 020, 021, 023 and 025
<br />Parameter
<br />Q, (cfs)
<br />Q2 (cfs)*
<br />Q3 (cfs)
<br />M,
<br />M3
<br />M2
<br />Notes
<br />As, TR (pg/1)
<br />Beginning January 1,
<br />2022
<br />113
<br />20
<br />133
<br />0
<br />0.02
<br />0.13
<br />Fe, Dis (pg/1)
<br />113
<br />20
<br />133
<br />105
<br />300
<br />1402
<br />Mn, Dis (pg/l)
<br />113
<br />20
<br />133
<br />50
<br />50
<br />50
<br />Hg, Tot (pg/1)
<br />113
<br />20
<br />133
<br />0
<br />0.01
<br />0.067
<br />1
<br />Sulfate (mg/1)
<br />113
<br />20
<br />133
<br />100
<br />250
<br />1098
<br />Note 1: Ambient data are not available; value assumed zero
<br />*Flow for process water outfalls combined
<br />Table A -8f
<br />Pae 23 of 40
<br />4300 Cherry Creek Drive S., Denver, CO 80246-1530 303-692-2000 www.colorado.gov/cdphe/wqcd I ®�
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