Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 1 - WATER QUALITY STANDARDS FOR SURFACE WATERS › Appendix A - Numeric Water Quality Standards › Table 16 - Chronic Standards for Total Ammonia (in mg/L, as N) for Aquatic and Wildlife Warmwater and Effluent Dependent, Unionid Mussels Absent

Current through Register Vol. 30, No. 28, July 12, 2024
For the aquatic and wildlife warmwater 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. For the aquatic and wildlife effluent dependent uses, unionids
					 will be assumed to be absent.
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
19
17
16
15
14
13
13
12
11
10
9.7
9.1
8.5
8
7.5
7
6.6
6.2
5.8
5.4
5.1
4.8
4.5
4.2
6.6
18
17
16
15
14
13
12
12
11
10
9.6
9
8.4
7.9
7.4
6.9
6.5
6.1
5.7
5.4
5
4.7
4.4
4.1
6.7
18
17
16
15
14
13
12
11
11
10
9.4
8.8
8.3
7.7
7.3
6.8
6.4
6
5.6
5.3
4.9
4.6
4.3
4.1
6.8
17
16
15
14
14
13
12
11
10
9.8
9.2
8.6
8.1
7.6
7.1
6.7
6.2
5.8
5.5
5.1
4.8
4.5
4.2
4
6.9
17
16
15
14
13
12
12
11
10
9.5
8.9
8.4
7.8
7.4
6.9
6.5
6.1
5.7
5.3
5
4.7
4.4
4.1
3.9
7
16
15
14
14
13
12
11
10
9.8
9.2
8.6
8.1
7.6
7.1
6.7
6.2
5.9
5.5
5.1
4.8
4.5
4.2
4
3.7
7.1
16
15
14
13
12
11
11
10
9.4
8.8
8.3
7.7
7.3
6.8
6.4
6
5.6
5.3
4.9
4.6
4.3
4.1
3.8
3.6
7.2
15
14
13
12
12
11
10
9.5
9
8.4
7.9
7.4
6.9
6.5
6.1
5.7
5.3
5
4.7
4.4
4.1
3.9
3.6
3.4
7.3
14
13
12
12
11
10
9.6
9
8.4
7.9
7.4
6.9
6.5
6.1
5.7
5.4
5
4.7
4.4
4.1
3.9
3.6
3.4
3.2
7.4
13
12
12
11
10
9.5
9
8.4
7.9
7.4
6.9
6.5
6.1
5.7
5.3
5
4.7
4.4
4.1
3.9
3.6
3.4
3.2
3
7.5
12
11
11
10
9.4
8.8
8.2
7.7
7.2
6.8
6.4
6
5.6
5.2
4.9
4.6
4.3
4.1
3.8
3.6
3.3
3.1
2.9
2.8
7.6
11
10
10
9.1
8.5
8
7.5
7
6.6
6.2
5.8
5.4
5.1
4.8
4.5
4.2
3.9
3.7
3.5
3.2
3
2.9
2.7
2.5
7.7
9.9
9.3
8.7
8.1
7.7
7.2
6.8
6.3
5.9
5.6
5.2
4.9
4.6
4.3
4
3.8
3.5
3.3
3.1
2.9
2.7
2.6
2.4
2.3
7.8
8.8
8.3
7.8
7.3
6.8
6.4
6
5.6
5.3
5
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
7.9
7.8
7.3
6.8
6.4
6
5.6
5.3
5
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
8
6.8
6.3
6
5.6
5.2
4.9
4.6
4.3
4
3.8
3.6
3.3
3.1
2.9
2.7
2.6
2.4
2.3
2.1
2
1.9
1.7
1.6
1.5
8.1
5.8
5.5
5.1
4.8
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
8.2
5
4.7
4.4
4.1
3.9
3.6
3.4
3.2
3
2.8
2.6
2.5
2.3
2.2
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
8.3
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
0.96
8.4
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
0.99
0.92
0.87
0.81
8.5
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
0.69
8.6
2.6
2.4
2.2
2.1
2
1.9
1.7
1.6
1.5
1.4
1.3
1.3
1.2
1.1
1
0.97
0.91
0.85
0.8
0.75
0.7
0.66
0.62
0.58
8.7
2.2
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.1
1
0.93
0.88
0.82
0.77
0.72
0.68
0.63
0.6
0.56
0.52
0.49
8.8
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
0.74
0.7
0.65
0.61
0.58
0.54
0.51
0.47
0.44
0.42
8.9
1.6
1.5
1.4
1.3
1.2
1.1
1.1
1
0.94
0.88
0.82
0.77
0.72
0.68
0.64
0.6
0.56
0.52
0.49
0.46
0.43
0.4
0.38
0.36
9
1.4
1.3
1.2
1.1
1
0.98
0.92
0.86
0.81
0.76
0.71
0.66
0.62
0.58
0.55
0.51
0.48
0.45
0.42
0.4
0.37
0.35
0.33
0.31
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