Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 2 - WATER QUALITY STANDARDS FOR NON-WOTUS PROTECTED SURFACE WATERS › Table 13 - Chronic Criteria for Total Ammonia (in mg/L, as N) for Aquatic and Wildlife Coldwater AZ and Warmwater AZ, Unionid Mussels Present

Current through Register Vol. 30, No. 28, July 12, 2024
For the Aquatic and Wildlife Coldwater and Warmwater AZ
				  uses, unionids will be assumed to be present unless a study is performed
				  demonstrating that they are absent and there is no historic evidence of their
				  presence, or hydrologic modification has altered the flow regime in a way that
				  would prevent their reestablishment.
pH
Temperature
							 (°C)
0-7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
6.5
4.9
4.6
4.3
4.1
3.8
3.6
3.3
3.1
2.9
2.8
2.6
2.4
2.3
2.1
2
1.9
1.8
1.6
1.5
1.5
1.4
1.3
1.2
1.1
6.6
4.8
4.5
4.3
4
3.8
3.5
3.3
3.1
2.9
2.7
2.5
2.4
2.2
2.1
2
1.8
1.7
1.6
1.5
1.4
1.3
1.3
1.2
1.1
6.7
4.8
4.5
4.2
3.9
3.7
3.5
3.2
3
2.8
2.7
2.5
2.3
2.2
2.1
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
6.8
4.6
4.4
4.1
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
2.3
2.1
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.1
6.9
4.5
4.2
4
3.7
3.5
3.3
3.1
2.9
2.7
2.5
2.4
2.2
2.1
2
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1
7
4.4
4.1
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
2.3
2.2
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.1
0.99
7.1
4.2
3.9
3.7
3.5
3.2
3
2.8
2.7
2.5
2.3
2.2
2.1
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1
0.95
7.2
4
3.7
3.5
3.3
3.1
2.9
2.7
2.5
2.4
2.2
2.1
2
1.8
1.7
1.6
1.5
1.4
1.3
1.3
1.2
1.1
1
0.96
0.9
7.3
3.8
3.5
3.3
3.1
2.9
2.7
2.6
2.4
2.2
2.1
2
1.8
1.7
1.6
1.5
1.4
1.3
1.3
1.2
1.1
1
0.97
0.91
0.85
7.4
3.5
3.3
3.1
2.9
2.7
2.5
2.4
2.2
2.1
2
1.8
1.7
1.6
1.5
1.4
1.3
1.3
1.2
1.1
1
0.96
0.9
0.85
0.79
7.5
3.2
3
2.8
2.7
2.5
2.3
2.2
2.1
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1
0.95
0.89
0.83
0.78
0.73
7.6
2.9
2.8
2.6
2.4
2.3
2.1
2
1.9
1.8
1.6
1.5
1.4
1.4
1.3
1.2
1.1
1.1
0.98
0.92
0.86
0.81
0.76
0.71
0.67
7.7
2.6
2.4
2.3
2.2
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.1
1
0.94
0.88
0.83
0.78
0.73
0.68
0.64
0.6
7.8
2.3
2.2
2.1
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1
0.95
0.89
0.84
0.79
0.74
0.69
0.65
0.61
0.57
0.53
7.9
2.1
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1
0.95
0.89
0.84
0.79
0.74
0.69
0.65
0.61
0.57
0.53
0.5
0.47
8
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.1
1
0.94
0.88
0.83
0.78
0.73
0.68
0.64
0.6
0.56
0.53
0.5
0.44
0.44
0.41
8.1
1.5
1.5
1.4
1.3
1.2
1.1
1.1
0.99
0.92
0.87
0.81
0.76
0.71
0.67
0.63
0.59
0.55
0.52
0.49
0.46
0.43
0.4
0.38
0.35
8.2
1.3
1.2
1.2
1.1
1
0.96
0.9
0.84
0.79
0.74
0.7
0.65
0.61
0.57
0.54
0.5
0.47
0.44
0.42
0.39
0.37
0.34
0.32
0.3
8.3
1.1
1.1
0.99
0.93
0.87
0.82
0.76
0.72
0.67
0.63
0.59
0.55
0.52
0.49
0.46
0.43
0.4
0.38
0.35
0.33
0.31
0.29
0.27
0.26
8.4
0.95
0.89
0.84
0.79
0.74
0.69
0.65
0.61
0.57
0.53
0.5
0.47
0.44
0.41
0.39
0.36
0.34
0.32
0.3
0.28
0.26
0.25
0.23
0.22
8.5
0.8
0.75
0.71
0.67
0.62
0.58
0.55
0.51
0.48
0.45
0.42
0.4
0.37
0.35
0.33
0.31
0.29
0.27
0.25
0.24
0.22
0.21
0.2
0.18
8.6
0.68
0.64
0.6
0.56
0.53
0.49
0.46
0.43
0.41
0.38
0.36
0.33
0.31
0.29
0.28
0.26
0.24
0.23
0.21
0.2
0.19
0.18
0.16
0.15
8.7
0.57
0.54
0.51
0.47
0.44
0.42
0.39
0.37
0.34
0.32
0.3
0.28
0.27
0.25
0.23
0.22
0.21
0.19
0.18
0.17
0.16
0.15
0.14
0.13
8.8
0.49
0.46
0.43
0.4
0.38
0.35
0.33
0.31
0.29
0.27
0.26
0.24
0.23
0.21
0.2
0.19
0.17
0.16
0.15
0.14
0.13
0.13
0.12
0.11
8.9
0.42
0.39
0.37
0.34
0.32
0.3
0.28
0.27
0.25
0.23
0.22
0.21
0.19
0.18
0.17
0.16
0.15
0.14
0.13
0.12
0.12
0.11
0.1
0.09
9
0.36
0.34
0.32
0.3
0.28
0.26
0.24
0.23
0.21
0.2
0.19
0.18
0.17
0.16
0.15
0.14
0.13
0.12
0.11
0.11
0.1
0.09
0.09
0.08
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