Section 302.APPENDIX C
Maximum total ammonia nitrogen concentrations allowable for certain
combinations of pH and temperature
Section 302.TABLE C Temperature
and pH-Dependent Values of the CS (Chronic Standard) for Fish Early Life Stages
Present
pH
|
Temperature,
˚Celsius
|
|
0
|
14
|
16
|
18
|
20
|
22
|
24
|
26
|
28
|
30
|
6
|
6.95
|
6.95
|
6.32
|
5.55
|
4.88
|
4.29
|
3.77
|
3.31
|
2.91
|
2.56
|
6.1
|
6.91
|
6.91
|
6.28
|
5.52
|
4.86
|
4.27
|
3.75
|
3.30
|
2.90
|
2.55
|
6.2
|
6.87
|
6.87
|
6.24
|
5.49
|
4.82
|
4.24
|
3.73
|
3.28
|
2.88
|
2.53
|
6.3
|
6.82
|
6.82
|
6.19
|
5.45
|
4.79
|
4.21
|
3.70
|
3.25
|
2.86
|
2.51
|
6.4
|
6.75
|
6.75
|
6.13
|
5.39
|
4.74
|
4.17
|
3.66
|
3.22
|
2.83
|
2.49
|
6.5
|
6.67
|
6.67
|
6.06
|
5.33
|
4.68
|
4.12
|
3.62
|
3.18
|
2.80
|
2.46
|
6.6
|
6.57
|
6.57
|
5.97
|
5.25
|
4.61
|
4.05
|
3.56
|
3.13
|
2.75
|
2.42
|
6.7
|
6.44
|
6.44
|
5.86
|
5.15
|
4.52
|
3.98
|
3.50
|
3.07
|
2.70
|
2.37
|
6.8
|
6.29
|
6.29
|
5.72
|
5.03
|
4.42
|
3.89
|
3.42
|
3.00
|
2.64
|
2.32
|
6.9
|
6.12
|
6.12
|
5.56
|
4.89
|
4.30
|
3.78
|
3.32
|
2.92
|
2.57
|
2.35
|
7
|
5.91
|
5.91
|
5.37
|
4.72
|
4.15
|
3.65
|
3.21
|
2.82
|
2.48
|
2.18
|
7.1
|
5.67
|
5.67
|
5.15
|
4.53
|
3.98
|
3.50
|
3.08
|
2.70
|
2.38
|
2.09
|
7.2
|
5.39
|
5.39
|
4.90
|
4.31
|
3.78
|
3.33
|
2.92
|
2.57
|
2.26
|
1.99
|
7.3
|
5.08
|
5.08
|
4.61
|
4.06
|
3.57
|
3.13
|
2.76
|
2.42
|
2.13
|
1.87
|
7.4
|
4.73
|
4.73
|
4.30
|
3.78
|
3.32
|
2.92
|
2.57
|
2.26
|
1.98
|
1.74
|
7.5
|
4.36
|
4.36
|
3.97
|
3.49
|
3.06
|
2.69
|
2.37
|
2.08
|
1.83
|
1.61
|
7.6
|
3.98
|
3.98
|
3.61
|
3.18
|
2.79
|
2.45
|
2.16
|
1.90
|
1.67
|
1.47
|
7.7
|
3.58
|
3.58
|
3.25
|
2.86
|
2.51
|
2.21
|
1.94
|
1.71
|
1.50
|
1.32
|
7.8
|
3.18
|
3.18
|
2.89
|
2.54
|
2.23
|
1.96
|
1.73
|
1.52
|
1.33
|
1.17
|
7.9
|
2.80
|
2.80
|
2.54
|
2.24
|
1.96
|
1.73
|
1.52
|
1.33
|
1.17
|
1.03
|
8
|
2.43
|
2.43
|
2.21
|
1.94
|
1.71
|
1.50
|
1.32
|
1.16
|
1.02
|
0.90
|
8.1
|
2.10
|
2.10
|
1.91
|
1.68
|
1.47
|
1.29
|
1.14
|
1.00
|
0.88
|
0.77
|
8.2
|
1.79
|
1.79
|
1.63
|
1.43
|
1.26
|
1.11
|
0.97
|
0.86
|
0.75
|
0.66
|
8.3
|
1.52
|
1.52
|
1.39
|
1.22
|
1.07
|
0.94
|
0.83
|
0.73
|
0.64
|
0.56
|
8.4
|
1.29
|
1.29
|
1.17
|
1.03
|
0.91
|
0.80
|
0.70
|
0.62
|
0.54
|
0.48
|
8.5
|
1.09
|
1.09
|
0.99
|
0.87
|
0.76
|
0.67
|
0.59
|
0.52
|
0.46
|
0.40
|
8.6
|
0.92
|
0.92
|
0.84
|
0.73
|
0.65
|
0.57
|
0.50
|
0.44
|
0.39
|
0.34
|
8.7
|
0.78
|
0.78
|
0.71
|
0.62
|
0.55
|
0.48
|
0.42
|
0.37
|
0.33
|
0.29
|
8.8
|
0.66
|
0.66
|
0.60
|
0.53
|
0.46
|
0.41
|
0.36
|
0.32
|
0.28
|
0.24
|
8.9
|
0.56
|
0.56
|
0.51
|
0.45
|
0.40
|
0.35
|
0.31
|
0.27
|
0.24
|
0.21
|
9
|
0.49
|
0.49
|
0.44
|
0.39
|
0.34
|
0.30
|
0.26
|
0.23
|
0.20
|
0.18
|
(Source: Added at 26 Ill.
Reg. 16931, effective November 8, 2002)