Ariz. Admin. Code § tit. 18, ch. 11, art. 1, app A, tbl. 14

Current through Register Vol. 30, No. 50, December 13, 2024
Table 14 - Acute Standards for Total Ammonia (in mg/L, as N) for Aquatic and Wildlife Coldwater, Unionid Mussels Absent

For the aquatic and wildlife coldwater 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.

Temperature (°C)

pH

0-14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

6.5

33

33

33

33

33

33

33

33

33

33

33

33

33

33

31

29

27

6.6

31

31

31

31

31

31

31

31

31

31

31

31

31

31

30

28

26

6.7

30

30

30

30

30

30

30

30

30

30

30

30

30

30

29

26

24

6.8

28

28

28

28

28

28

28

28

28

28

28

28

28

28

27

25

23

6.9

26

26

26

26

26

26

26

26

26

26

26

26

26

26

25

23

21

7

24

24

24

24

24

24

24

24

24

24

24

24

24

24

23

21

20

7.1

22

22

22

22

22

22

22

22

22

22

22

22

22

22

21

19

18

7.2

20

20

20

20

20

20

20

20

20

20

20

20

20

20

19

17

16

7.3

18

18

18

18

18

18

18

18

18

18

18

18

18

18

17

16

14

7.4

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

14

13

7.5

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

12

11

7.6

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

10

9.3

7.7

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.3

8.6

7.9

7.8

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.1

7.8

7.2

6.6

7.9

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.5

6

5.5

8

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.4

5

4.6

8.1

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.5

4.1

3.8

8.2

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.7

3.4

3.1

8.3

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3

2.8

2.6

8.4

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.5

2.3

2.1

8.5

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

1.9

1.8

8.6

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.7

1.6

1.4

8.7

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1.3

1.2

8.8

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1

8.9

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

0.92

0.85

9

0.88

0.88

0.88

0.88

0.88

0.88

0.88

0.88

0.88

0.88

0.88

0.88

0.88

0.88

0.85

0.78

0.72

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Ariz. Admin. Code tit. 18, ch. 11, art. 1, app A, tbl. 14

Appendix A, Table 14 adopted by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Appendix A, Table 14 amended by final rulemaking at 9 A.A.R. 716, effective April 8, 2003 (Supp. 03-1). Appendix A, Table 14 renumbered to Table 13; new Table 14 renumbered from Table 15 and amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4). Appendix A, Table 14 repealed by final rulemaking at 22 A.A.R. 2328, effective August 2, 2016 (Supp. 16-4). New Appendix A, Table 14 made by final rulemaking at 25 A.A.R. 2515, effective November 9, 2019 (Supp. 19-3).