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 16 - Chronic Standards for Total Ammonia (in mg/L, as N) for Aquatic and Wildlife Warmwater AZ, 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
6.5
6.6
6.7
6.8
6.9
7
7.1
7.2
7.3
7.4
7.5
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
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
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
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
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
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
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
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
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
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
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
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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