35 Ill. Adm. Code 302.APPENDIX C
C Maximum total ammonia nitrogen concentrations allowable for certain combinations of pH and temperature
Section 302
Section 302.APPENDIX CÂ Â
Maximum total ammonia nitrogen concentrations allowable for certain
combinations of pH and temperature
Section 302.TABLE BÂ Â
Temperature and pH-Dependent Values of the CS (Chronic Standard) for Fish Early
Life Stages Absent
pH
Temperature,
ËšCelsius
0-7
8
9
10
11
12
13
14
15
16
6
11.3
10.6
9.92
9.30
8.72
8.17
7.66
7.19
6.74
6.32
6.1
11.2
10.5
9.87
9.25
8.67
8.13
7.62
7.15
6.70
6.28
6.2
11.2
10.5
9.81
9.19
8.62
8.08
7.58
7.10
6.66
6.24
6.3
11.1
10.4
9.73
9.12
8.55
8.02
7.52
7.05
6.61
6.19
6.4
11.0
10.3
9.63
9.03
8.47
7.94
7.44
6.98
6.54
6.13
6.5
10.8
10.1
9.51
8.92
8.36
9.84
7.35
6.89
6.46
6.06
6.6
10.7
9.99
9.37
8.79
8.24
7.72
7.24
6.79
6.36
5.97
6.7
10.5
9.81
9.20
8.62
8.08
7.58
7.11
6.66
6.25
5.86
6.8
10.2
9.58
8.98
8.42
7.90
7.40
6.94
6.51
6.10
5.72
6.9
9.93
9.31
8.73
8.19
7.68
7.20
6.75
6.33
5.93
5.56
7
9.60
9.00
8.43
7.91
7.41
6.95
6.52
6.11
5.73
5.37
7.1
9.20
8.63
8.09
7.58
7.11
6.67
6.25
5.86
5.49
5.15
7.2
8.75
8.20
7.69
7.21
6.76
6.34
5.94
5.57
5.22
4.90
7.3
8.24
7.73
7.25
6.79
6.37
5.97
5.60
5.25
4.92
4.61
7.4
7.69
7.21
6.76
6.33
5.94
5.57
5.22
4.89
4.59
4.30
7.5
7.09
6.64
6.23
5.84
5.48
5.13
4.81
4.51
4.23
3.97
7.6
6.46
6.05
5.67
5.32
4.99
4.68
4.38
4.11
3.85
3.61
7.7
5.81
5.45
5.11
4.79
4.49
4.21
3.95
3.70
3.47
3.25
7.8
5.17
4.84
4.54
4.26
3.99
3.74
3.51
3.29
3.09
2.89
7.9
4.54
4.26
3.99
3.74
3.51
3.29
3.09
2.89
2.71
2.54
8
3.95
3.70
3.47
3.26
3.05
2.86
2.68
2.52
2.36
2.21
8.1
3.41
3.19
2.99
2.81
2.63
2.47
2.31
2.17
2.03
1.91
8.2
2.91
2.73
2.56
2.40
2.25
2.11
1.98
1.85
1.74
1.63
8.3
2.47
2.32
2.18
2.04
1.91
1.79
1.68
1.58
1.48
1.39
8.4
2.09
1.96
1.84
1.73
1.62
1.52
1.42
1.33
1.25
1.17
8.5
1.77
1.66
1.55
1.46
1.37
1.28
1.20
1.13
1.06
0.99
8.6
1.49
1.40
1.31
1.23
1.15
1.08
1.01
0.95
0.89
0.84
8.7
1.26
1.18
1.11
1.04
0.98
0.92
0.86
0.80
0.75
0.71
8.8
1.07
1.01
0.94
0.88
0.83
0.78
0.73
0.68
0.64
0.60
8.9
0.92
0.86
0.81
0.76
0.71
0.66
0.62
0.58
0.55
0.51
9.0
0.79
0.74
0.69
0.65
0.61
0.57
0.54
0.50
0.47
0.44
*Â At 15Ëš C and above, the criterion for fish ELS Absent is the same
as the criterion for fish ELS Present.