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 1 - Water Quality Criteria by Designated Use (see footnote)

Current through Register Vol. 30, No. 28, July 12, 2024
Parameter
CAS NUMBER
DWS AZ (µg/L)
FC AZ (µg/L)
FBC AZ (µg/L)
PBC AZ (µg/L)
A&Wc AZ Acute
							 (µg/L)
A&Wc AZ Chronic
							 (µg/L)
A&Ww AZ Acute
							 (µg/L)
A&Ww AZ Chronic
							 (µg/L)
AgI AZ (µg/L)
AgL AZ (µg/L)
Acenaphthene
83329
420
198
56,000
56,000
850
550
850
550
Acrolein
107028
3.5
1.9
467
467
3
3
3
3
Acrylonitrile
107131
0.06
0.2
3
37,333
3,800
250
3,800
250
Alachlor
15972608
2
9,333
9,333
2,500
170
2,500
170
Aldrin
309002
0.002
0.00005
0.08
28
3
3
0.003
See (b)
Alpha Particles (Gross)
							 Radioactivity
15 pCi/L See (h)
Ammonia
7664417
See (e) & Tables 11 (present) & 14
							 (absent)
See (e) & Tables 13 (present) & 17
							 (absent)
See (e) & Tables 12 (present) & 15
							 (absent)
See (e) & Tables 13 (present) & 16
							 (absent)
Anthracene
120127
2,100
74
280,000
280,000
Antimony
7440360
6 T
640 T
747 T
747 T
88 D
30 D
88 D
30 D
Arsenic
7440382
10 T
80 T
30 T
280 T
340 D
150 D
340 D
150 D
2,000 T
200 T
Asbestos
1332214
See (a)
Atrazine
1912249
3
32,667
32,667
Barium
7440393
2,000 T
98,000 T
98,000 T
Benz(a)anthracene
56553
0.005
0.02
0.2
0.2
Benzene
71432
5
140
93
3,733
2,700
180
2,700
180
Benzo[b]fluoranthene Benzfluo-
							 ranthene
205992
0.005
0.02
1.9
1.9
Benzidine
92875
0.0002
0.0002
0.01
2,800
1,300
89
1,300
89
0.01
0.01
Benzo(a)pyrene
50328
0.2
0.02
0.2
0.2
Benzo(k)fluoranthene
207089
0.005
0.02
1.9
1.9
Beryllium
7440417
4 T
84 T
1,867 T
1,867 T
65 D
5.3 D
65 D
5.3 D
Beta particles and photon emitters
4 millirems /year See (i)
Bis(2-chloroethyl) ether
111444
0.03
0.5
1
1
120,000
6,700
120,000
6,700
Bis(2-chloroisopropyl) ether
108601
280
3,441
37,333
37,333
Boron
7440428
1,400 T
186,667 T
186,667 T
1,000 T
Bromodichloromethane
75274
TTHM See (g)
17
TTHM
18,667
4-Bromophenyl phenyl ether
101553
180
14
180
14
Bromoform
75252
TTHM See (g)
133
180
18,667
15,000
10,000
15,000
10,000
Bromomethane
74839
9.8
299
1,307
1,307
5,500
360
5,500
360
Butyl benzyl phthalate
85687
1,400
386
186,667
186,667
1,700
130
1,700
130
Cadmium
7440439
5 T
84 T
700 T
700 T
See (d) & Table 2
See (d) & Table 3
See (d) & Table 2
See (d) & Table 3
50
50
Carbaryl
63252
2.1
2.1
2.1
2.1
Carbofuran
1563662
40
4,667
4,667
650
50
650
50
Carbon tetrachloride
56235
5
2
11
980
18,000
1,100
18,000
1,100
Chlordane
57749
2
0.0008
4
467
2.4
0.004
2.4
0.2
Chlorine (total residual)
7782505
4,000
4000
4000
19
11
19
11
Chlorobenzene
108907
100
1,553
18,667
18,667
3,800
260
3,800
260
2-Chloroethyl vinyl ether
110758
180,000
9,800
180,000
9,800
Chloroform
67663
TTHM See (g)
470
230
9,333
14,000
900
14,000
900
p-Chloro-m-cresol
59507
15
4.7
15
4.7
Chloromethane
74873
270,000
15,000
270,000
15,000
beta-Chloronaphthalene
91587
560
317
74,667
74,667
2-Chlorophenol
95578
35
30
4,667
4,667
2,200
150
2,200
150
Chloropyrifos
2921882
21
2,800
2,800
0.08
0.04
0.08
0.04
Chromium III
16065831
75,000 T
1,400,000 T
1,400,000 T
See (d) & Table 4
See (d) & Table 4
See (d) & Table 4
See (d) & Table 4
Chromium VI
18540299
21 T
150 T
2,800 T
2,800 T
16 D
11 D
16 D
11 D
Chromium (Total)
7440473
100 T
1,000
1,000
Chrysene
218019
0.005
0.02
19
19
Copper
7440508
1,300 T
1,300 T
1,300 T
See (d) & Table 5
See (d) & Table 5
See (d) & Table 5
See (d) & Table 5
5,000 T
500 T
Cyanide (as free cyanide)
57125
200 T
16,000 T
18,667 T
18,667 T
22 T
5.2 T
41 T
9.7 T
200 T
Dalapon
75990
200
8,000
28,000
28,000
DDT and its breakdown products
50293
0.1
0.0002
14
467
1.1
0.001
1.1
0.001
0.001
0.001
Demeton
8065483
0.1
0.1
Diazinon
333415
0.17
0.17
0.17
0.17
Dibenz (ah) anthracene
53703
0.005
0.02
1.9
1.9
Dibromochloromethane
124481
TTHM See (g)
13
TTHM
18,667
1,2-Dibromo-3-chloropro- pane
96128
0.2
2,800
2,800
1,2-Dibromoethane
106934
0.05
8,400
8,400
Dibutyl phthalate
84742
700
899
93,333
93,333
470
35
470
35
1,2-Dichlorobenzene
95501
600
205
84,000
84,000
790
300
1,200
470
1,3-Dichlorobenzene
541731
2,500
970
2,500
970
1,4-Dichlorobenzene
106467
75
5755
373,333
373,333
560
210
2,000
780
3,3'-Dichlorobenzidine
91941
0.08
0.03
3
3
1,2-Dichloroethane
107062
5
37
15
186,667
59,000
41,000
59,000
41,000
1,1-Dichloroethylene
75354
7
7,143
46,667
46,667
15,000
950
15,000
950
1,2-cis-Dichloroethylene
156592
70
70
70
1,2-trans-Dichloroethylene
156605
100
10,127
18,667
18,667
68,000
3,900
68,000
3,900
Dichloromethane
75092
5
593
190
56,000
97,000
5,500
97,000
5,500
2,4-Dichlorophenol
120832
21
59
2,800
2,800
1,000
88
1,000
88
2,4-Dichlorophenoxyacetic acid
(2,4-D)
94757
70
9,333
9,333
1,2-Dichloropropane
78875
5
17,518
84,000
84,000
26,000
9,200
26,000
9,200
1,3-Dichloropropene
542756
0.7
42
420
28,000
3,000
1,100
3,000
1,100
Dieldrin
60571
0.002
0.00005
0.09
47
0.2
0.06
0.2
0.06
0.003
See (b)
Diethyl phthalate
84662
5,600
8,767
746,667
746,667
26,000
1,600
26,000
1,600
Di (2-ethylhexyl) adipate
103231
400
560,000
560,000
Di (2-ethylhexyl) phthalate
117817
6
3
100
18,667
400
360
400
360
2,4-Dimethylphenol
105679
140
171
18,667
18,667
1,000
310
1,000
310
Dimethyl phthalate
131113
17,000
1,000
17,000
1,000
4,6-Dinitro-o-cresol
534521
28
582
3,733
3,733
310
24
310
24
2,4-Dinitrophenol
51285
14
1,067
1,867
1,867
110
9.2
110
9.2
2,4-Dinitrotoluene
121142
14
421
1,867
1,867
14,000
860
14,000
860
2,6-Dinitrotoluene
606202
0.05
2
3,733
Di-n-octyl phthalate
117840
2,800
373,333
373,333
Dinoseb
88857
7
933
933
1,2-Diphenylhydrazine
122667
0.04
0.2
1.8
1.8
130
11
130
11
Diquat
85007
20
2,053
2,053
Endosulfan sulfate
1031078
42
18
5,600
5,600
0.2
0.06
0.2
0.06
Endosulfan (Total)
115297
42
18
5,600
5,600
0.2
0.06
0.2
0.06
Endothall
145733
100
18,667
18,667
Endrin
72208
2
0.06
280
280
0.09
0.04
0.09
0.04
0.004
0.004
Endrin aldehyde
7421934
2
0.09
0.04
0.09
0.04
Ethylbenzene
100414
700
2,133
93,333
93,333
23,000
1,400
23,000
1,400
Fluoranthene
206440
280
28
37,333
37,333
2,000
1,600
2,000
1,600
Fluorene
86737
280
1,067
37,333
37,333
Fluoride
7782414
4,000
140,000
140,000
Glyphosate
1071836
700
266,667
93,333
93,333
Guthion
86500
0.01
0.01
Heptachlor
76448
0.4
0.00008
0.4
467
0.5
0.004
0.5
0.004
Heptachlor epoxide
1024573
0.2
0.00004
0.2
12
0.5
0.004
0.5
0.004
Hexachlorobenzene
118741
1
0.0003
1
747
6
3.7
6
3.7
Hexachlorobutadiene
87683
0.4
18
18
187
45
8.2
45
8.2
Hexachlorocyclohexane alpha
319846
0.006
0.005
0.22
7,467
1,600
130
1,600
130
Hexachlorocyclohexane beta
319857
0.02
0.02
0.78
560
1,600
130
1,600
130
Hexachlorocyclohexane delta
319868
1,600
130
1,600
130
Hexachlorocyclohexane gamma
							 (lindane)
58899
0.2
1.8
280
280
1
0.08
1
0.28
Hexachlorocyclopentadiene
77474
50
580
9,800
9,800
3.5
0.3
3.5
0.3
Hexachloroethane
67721
2.5
3.3
100
933
490
350
490
350
Hydrogen sulfide
7783064
2 See (c)
2 See (c)
Indeno (1,2,3-cd) pyrene
193395
0.05
0.49
1.9
1.9
Iron
7439896
1,000 D
1,000 D
Isophorone
78591
37
961
1,500
186,667
59,000
43,000
59,000
43,000
Lead
7439921
15 T
15 T
15 T
See (d) & Table 6
See (d) & Table 6
See (d) & Table 6
See (d) & Table 6
10,000 T
100 T
Malathion
121755
140
18,667
18,667
0.1
0.1
Manganese
7439965
980
130,667
130,667
10,000
Mercury
7439976
2 T
280 T
280 T
2.4 D
0.01 D
2.4 D
0.01 D
10 T
Methoxychlor
72435
40
4,667
4,667
0.03
0.03
Methylmercury
22967926
0.3 mg/ kg
Mirex
2385855
1
187
187
0.001
0.001
Naphthalene
91203
140
1,524
18,667
18,667
1,100
210
3,200
580
Nickel
7440020
140 T
4,600 T
28,000 T
28,000 T
See (d) & Table 7
See (d) & Table 7
See (d) & Table 7
See (d) & Table 7
Nitrate
14797558
10,000
3,733,333
3,733,333
Nitrite
14797650
1,000
233,333
233,333
Nitrate + Nitrite
10,000
Nitrobenzene
98953
3.5
138
467
467
1,300
850
1,300
850
p-Nitrophenol
100027
4,100
3,000
4,100
3,000
N-nitrosodimethylamine
62759
0.001
3
0.03
0.03
N-Nitrosodiphenylamine
86306
7.1
6
290
290
2,900
200
2,900
200
N-nitrosodi-n-propylamine
621647
0.005
0.5
0.2
88,667
Nonylphenol
104405
28
6.6
28
6.6
Oxamyl
23135220
200
23,333
23,333
Parathion
56382
0.07
0.01
0.07
0.01
Paraquat
1910425
32
4,200
4,200
100
54
100
54
Pentachlorophenol
87865
1
1,000
12
28,000
See (e), (j) & Table 10
See (e), (j) & Table 10
See (e), (j) & Table 10
See (e), (j) & Table 10
Permethrin
52645531
350
46,667
46,667
0.3
0.2
0.3
0.2
Phenanthrene
85018
30
6.3
30
6.3
Phenol
108952
2,100
37
280,000
280,000
5,100
730
7,000
1,000
Picloram
1918021
500
2,710
65,333
65,333
Polychlorinatedbiphenyls (PCBs)
1336363
0.5
0.00006
2 19
19
2
0.01
2
0.02
0.001
0.001
Pyrene
129000
210
800
28,000
28,000
Radium 226 + Radium 228
5 pCi/L
Selenium
7782492
50 T
667 T
4,667 T
4,667 T
2 T
2 T
20 T
50 T
Silver
7440224
35 T
8,000 T
4,667 T
4,667 T
See (d) &
Table 8
See (d) &
Table 8
Simazine
112349
4
4,667
4,667
Strontium
7440246
8 pCi/L
Styrene
100425
100
186,667
186,667
5,600
370
5,600
370
Sulfides
2,3,7,8-Tetrachlorod- ibenzo-p-dioxin (2,3,7,8-
							 TCDD)
1746016
0.00003
5x10-9
0.00003
0.0009
0.01
0.005
0.01
0.005
1,1,2,2-Tetrachloroethane
79345
0.2
4
7
56,000
4,700
3,200
4,700
3,200
Tetrachloroethylene
127184
5
261
9,333
9,333
2,600
280
6,500
680
Thallium
7440280
2 T
7.2 T
75 T
75 T
700 D
150 D
700 D
150 D
Toluene
108883
1,000
201.000
280,000
280,000
8,700
180
8,700
180
Toxaphene
8001352
3
0.0003
1.3
933
0.7
0.0002
0.7
0.0002
0.005
0.005
Tributyltin
0.5
0.07
0.5
0.07
1,2,4-Trichlorobenzene
120821
70
70
9,333
9,333
750
130
1,700
300
1,1,1-Trichloroethane
71556
200
428,571
1,866,667
1,866,667
2,600
1,600
2,600
1,600
1,000
1,1,2-Trichloroethane
79005
5
16
25
3,733
18,000
12,000
18,000
12,000
Trichloroethylene
79016
5
29
280,000
280
20,000
1,300
20,000
1,300
2,4,6-Trichlorophenol
88062
3.2
2
130
130
160
25
160
25
2,4,5-Trichlorophenoxy propri-onic acid
							 (2,4,5-TP)
93721
50
7,467
7,467
Trihalomethanes (T)
80
Tritium
10028178
20,000 pCi/ L
Uranium
7440611
30 D
2,800
2,800
Vinyl chloride
75014
2
5
2
2,800
Xylenes (T)
1330207
10,000
186,667
186,667
Zinc
7440666
2,100 T
5,106 T
280,000 T
280,000 T
See (d) & Table 9
See (d) & Table 9
See (d) & Table 9
See (d) & Table 9
10,000 T
25,000 T
Footnotes
a. The
				asbestos standard is 7 million fibers (longer than 10 micrometers) per
				liter.
b. The aldrin/dieldrin
				standard is exceeded when the sum of the two compounds exceeds 0.003
				µg/L.
c. In lakes, the acute
				criteria for hydrogen sulfide apply only to water samples taken from the
				epilimnion, or the upper layer of a lake or reservoir.
d. Hardness, expressed as mg/L CaCO3, is
				determined according to the following criteria:
i. If the receiving water body has an
				A&Wc or A&Ww designated use, then hardness is based on the hardness of
				the receiving water body from a sample taken at the same time that the sample
				for the metal is taken, except that the hardness may not exceed 400 mg/L
				CaCO3.
ii. The mathematical
				equations for the hardness-dependent parameter represent the water quality
				standards. Examples of criteria for the hardness-dependent parameters have been
				calculated and are presented in separate tables in this rule for the
				convenience of the user.