Ariz. Admin. Code § tit. 18, ch. 11, art. 2, tbl. 1

Current through Register Vol. 30, No. 50, December 13, 2024

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

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.

e. pH is determined according to the following criteria:

i. If the receiving water has an A&Wc or A&Ww designated use, then pH is based on the pH of the receiving water body from a sample taken at the same time that the sample for pentachlorophenol or ammonia is taken.

ii. The mathematical equations for ammonia represent the water quality standards. Examples of criteria for ammonia have been calculated and are presented in separate tables in this rule for the convenience of the user.

f. Table 1 abbreviations.

i. µg/L = micrograms per liter,

ii. mg/kg = milligrams per kilogram,

iii. pCi/L = picocuries per liter,

iv. D = dissolved,

v. T = total recoverable,

vi. TTHM indicates that the chemical is a trihalomethane.

g. The total trihalomethane (TTHM) standard is exceeded when the sum of these four compounds exceeds 80 µg/L, as a rolling annual average.

h. The concentration of gross alpha particle activity includes radium-226, but excludes radon and uranium.

i. The average annual concentration of beta particle activity and photon emitters from manmade radionuclides shall not produce an annual dose equivalent to the total body or any internal organ greater than four millirems per year.

j. The mathematical equations for the pH-dependent parameters represent the water quality standards. Examples of criteria for the pH-dependent parameters have been calculated and are presented in separate tables in this rule for the convenience of the user.

k. Abbreviations for the mathematical equations are as follows:

e = the base of the natural logarithm and is a mathematical constant equal to 2.71828

LN = is the natural logarithm

CMC = Criterion Maximum Concentration (acute)

CCC= Criterion Continuous Concentration (chronic)

Ariz. Admin. Code tit. 18, ch. 11, art. 2, tbl. 1

New Section made by final rulemaking at 29 A.A.R. 302, effective 2/20/2023.