HYDRO23451

• Permit No: C1981071
• IBM Index Class Name: Hydrology
• Doc Name: AMBIENT WATER QUALITY CONDITIONS SEGMENT 13 OF YAMPA RIVER
• Permit Index Doc Type: NPDES
• Media Type: D
• Archive: No

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AMBIENT WATER QUALITY CONDITIONS
SEGMENT 13 OF YAMPA RIVER
Figure 1
• III III III III IIII III
Data is expressed in number of excursions/number of water samples and percentage
of samples which are excursions according to existing standards.
WATERSHED TROUT FISH MIDDLE FOIDEL TOTAL %
DO 0/9 0/53 0/20 0/50 0/132 0
pH 2/67 5/394 3/375 8/362 18/1198 1.5
C1 0/67 0/138 0/113 0/198 0/516 0
SOq 1/50 6/155 2/115 27/200 36/520 6.9
As 7/7 0/14 0/8 0/34 7/63 11.1
Cd 5/12 2/3 3/5 6/9 16/29 55.2
Cr 1/12 - - 0/1 1/13 7.7
Cu 11/26 8/9 1/9 9/16 29/60 48.3
Pb 0/15 3/8 2/10 6/21 11/54 20.4
Fe (sol) 5/57 0/1 1/29 0/3 6/90 6.7
Mn (sol) 6/64 0/1 27/30 2/2 35/97 36.1
Hg 6/8 2/2 1/1 11/12 20/23 87.0
Ni 2/26 0/1 0/7 0/7 2/41 4.9
Se 6/22 0/17 0/4 0/34 6/77 7.8
Zn 7/67 0/11 1/7 4/26 12/111 10.8
Fe (tot) 6/49 140/265 56/138 99/297 301/749 40.2
Mn (tot) - 2/237 4/111 7/280 13/628 2.1
NH3 - 6/7 - 8/8 14/15 93.3
B 0/16 0/10 0/27 0/32 0/85 0
N03 0/16 5/70 - 5/41 10/127 7.9
N02 + N03 1/27 - 11/113 - 12/140 8/6
Ag 5/5 - - - 5/5 100