Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-1 - Water Quality Standards › Section 3745-1-33 - Water quality criteria for water supply use designations

Current
			 through all regulations passed and filed through July 1,
			 2024
[Comment: For dates of non-regulatory government publications,
				publications of recognized organizations and associations, federal rules and
				federal statutory provisions referenced in this rule, see rule
				3745-1-03
				of the Administrative Code.]
(A) Human
			 health water quality criteria [public water supply].
(1) The chemical specific criteria listed in
			 table 33-1 of this rule, or site-specific modifications thereof, apply as
			 "Outside Mixing Zone Averages" and shall apply to all water bodies located
			 within five hundred yards of drinking water intakes. For the purpose of setting
			 water quality based effluent limits, these criteria shall be met after the
			 effluent and the receiving water are reasonably well mixed as provided in rules
			 3745-1-06
			 and
			 3745-2-05
			 of the Administrative Code.
(2)
			 Water bodies located within the Ohio river drainage basin. Any methodologies
			 and procedures acceptable under 40 C.F.R. 131,
			 effective July 1, 2019 may be used when developing or revising human
			 health water quality criteria or implementing narrative criteria contained in
			 rule
			 3745-1-04
			 of the Administrative Code. For any pollutant for which it is demonstrated that
			 a methodology or procedure cited in this rule is not scientifically defensible,
			 the director may apply an alternative methodology or procedure acceptable under
			 40 C.F.R. 131 when developing water quality criteria.
(3) Water bodies located within the lake Erie
			 drainage basin. The methodologies contained in rules
			 3745-1-41
			 and
			 3745-1-42
			 of the Administrative Code shall be used when adopting or revising numeric
			 human health criteria and when implementing the narrative water quality
			 criteria contained in rule
			 3745-1-04
			 of the Administrative Code. For pollutants listed in table 33-2 of this rule,
			 any methodologies and procedures acceptable under 40 C.F.R. 131 may be used
			 when developing water quality criteria or implementing narrative criteria. For
			 any pollutant other than those in table 33-2 of this rule, for which it is
			 demonstrated that a methodology or procedure cited in this rule is not
			 scientifically defensible, the director may apply an alternative methodology or
			 procedure acceptable under 40 C.F.R. 131 when developing water quality
			 criteria.
Table 33-1. Water quality criteria for the protection of human
				health [public water supply].
OMZA3
Chemical
Form1
Units2
Drinking
Ohio river
Lake Erie
Acenaphthene
T
µg/l
70
Acrolein
T
µg/l
3.0
Acrylonitrile5
T
µg/l
0.51
Alachlor
T
µg/l
2.0a
2.0a
Aldrin5
T
µg/l
7.7
*10-6
Anthracene
T
µg/l
300
Antimony5
TR
µg/l
5.6
6.0a
Arsenic
TR
µg/l
10a
10a
Asbestos
T
Mf/l
7.0a
7.0a
Atrazine
T
µg/l
3.0a
3.0a
Barium5
TR
µg/l
1,000
2,000a
Benzene5
T
µg/l
5.0a
5.0a
Benzidine5
T
µg/l
0.00086
Benzo(a)anthracene5
T
µg/l
0.012
0.2a
Benzo(a)pyrene5
T
µg/l
0.0012
Benzo(b)fluoranthene5
T
µg/l
0.012
Benzo(k)fluoranthene5
T
µg/l
0.038
Beryllium
TR
µg/l
4.0a
4.0a
Bromate
T
µg/l
10a
10a
Bromoform (Tribromomethane)5
T
µg/l
43
Butylbenzyl phthalate
T
µg/l
0.10
Cadmium
TR
µg/l
5.0a
5.0a
Carbofuran
T
µg/l
40a
40a
Carbon tetrachloride5
T
µg/l
2.3
5.0a
Chloramine
T
µg/l
4,000a
4,000a
Chlordane5
T
µg/l
0.0030
1.00025
Chlorides
T
mg/l
250a
250a
Chlorine
T
µg/l
4,000a
4,000a
Chlorine dioxide
T
µg/l
800a
800a
Chlorite
T
µg/l
1,000a
1,000a
Chloroacetic acid6
T
µg/l
60a
a 60
Chlorobenzene
T
µg/l
100a
100a
Chlorodibromomethane5
T
µg/l
4.0
Bis(2-Chloro-1-methylethyl)
						  ether
T
µg/l
200
Bis(2-Chloroethyl)ether5
T
µg/l
0.30
Chloroform5
T
µg/l
57
bis(2-Chloroisopropyl)ether
T
µg/l
1,400
bis(2-Chloromethyl)ether5
T
µg/l
0.0015
2-Chloronaphthalene
T
µg/l
800
2-Chlorophenol
T
µg/l
30
Chromium
TR
µg/l
100a
a 100
Chrysene5
T
µg/l
0.038
Cyanide
free
µg/l
4.0
4.0
2,4-D (2,4-Dichlorophenoxy-acetic acid)
T
µg/l
70a
70a
Dalapon
T
µg/l
200a
200a
4,4'-DDD5
T
µg/l
0.0012
4,4'-DDE5
T
µg/l
0.00018
4,4'-DDT5
T
µg/l
0.000.3
00015
Dibenzo(a,h)anthracene5
T
µg/l
0.0012
Dibromochloropropane
T
µg/l
0.2a
0.2a
Di-n-butyl phthalate
T
µg/l
20
Dichloroacetic acid6
T
µg/l
60a
60a
1,2-Dichlorobenzene
T
µg/l
420
600a
1,3-Dichlorobenzene
T
µg/l
7.0
1,4-Dichlorobenzene
T
µg/l
63
75a
3,3'-Dichlorobenzidine5
T
µg/l
0.21
Dichlorobromomethane5
T
µg/l
5.5
1,2-Dichloroethane5
T
µg/l
3.8
5.0a
1,1-Dichloroethylene5
T
µg/l
0.57
7.0a
cis-1,2-Dichloroethylene
T
µg/l
70a
70a
trans-1,2-Dichloroethylene
T
µg/l
100a
100a
2,4-Dichlorophenol
T
µg/l
10
1,2-Dichloropropane5
T
µg/l
5.0a
5.0a
1,3-Dichloropropene
T
µg/l
2.7
Dieldrin5
T
µg/l
1.2 *10-5
0.0000065
Di(2-ethylhexyl)adipate
T
µg/l
400a
400a
Diethyl phthalate
T
µg/l
600
2,4-Dimethylphenol
T
µg/l
100
100
Dimethyl phthalate
T
µg/l
2,000
4,6-Dinitro-o-cresol
						  (4,6-Dinitro-2-methylphenol)
T
µg/l
2.0
Dinitrophenols4
T
µg/l
10
2,4-Dinitrophenol
T
µg/l
10
10
2,4-Dinitrotoluene5
T
µg/l
0.49
Dinoseb
T
µg/l
7.0a
7.0a
1,2-Diphenylhydrazine5
T
µg/l
0.30
Diquat
T
µg/l
20a
20a
Dissolved solids
T
mg/l
750/500a,b
750/500a,
														b
alpha-Endosulfan7
T
µg/l
20
beta-Endosulfan7
T
µg/l
20
Endosulfan sulfate7
T
µg/l
20
Endothall
T
µg/l
100a
100a
Endrin8
T
µg/l
0.03
2.0a
Endrin aldehyde8
T
µg/l
0.29
Ethylbenzene
T
µg/l
68
700a
Ethylene dibromide (EDB)
T
µg/l
0.050a
0.050a
bis(2-Ethylhexyl)phthalate5
T
µg/l
3.2
6.0a
Fluoranthene
T
µg/l
20
Fluorene
T
µg/l
50
Fluoride
T
µg/l
1,000
40,000a
Glyphosate
T
µg/l
700a
700a
Heptachlor5
T
µg/l
5.900-5
*
						  1.4-a
Heptachlor epoxide5
T
µg/l
0.00032
0.2a
Hexachlorobenzene5
T
µg/l
0.00079
0.00045
Hexachlorobutadiene5
T
µg/l
0.10
alpha-Hexachlorocyclohexane5
T
µg/l
0.0036
beta-Hexachlorocyclohexane5
T
µg/l
0.08
gamma-Hexachlorocyclohexane
						  (Lindane)5
T
µg/l
0.20
0.20a
Hexachlorocyclohexane - technical
						  grade5
T
µg/l
0.066
Hexachlorocyclopentadiene
T
µg/l
4.0
50a
Hexachloroethane5
T
µg/l
1.0
1.0
Indeno(1,2,3-c,d)pyrene5
T
µg/l
0.012
Iron
S
µg/l
300a
300a
Isophorone5
T
µg/l
340
Mercury
TR
µg/l
0.012
0.0031
Methoxychlor
T
µg/l
0.02
40a
Methyl bromide
T
µg/l
47
3-Methyl-4-chlorophenol
T
µg/l
500
Methylene chloride5
T
µg/l
5.0a
5.0a
Nickel
TR
µg/l
610
Nitrate-N + Nitrite-N
T
µg/l
10,000a
10,000a
Nitrite-N
T
µg/l
1,000a
1,000a
Nitrobenzene
T
µg/l
10
Nitrosoamines5
T
µg/l
0.0080
N-Nitrosodibutylamine5
T
µg/l
0.063
N-Nitrosodiethylamine5
T
µg/l
0.0080
N-Nitrosodimethylamine5
T
µg/l
0.0069
N-Nitrosodi-n-propylamine5
T
µg/l
0.050
N-Nitrosodiphenylamine5
T
µg/l
33
N-Nitrosodipyrrolidine5
T
µg/l
0.16
Oxamyl (Vydate)
T
µg/l
200a
200a
Pentachlorobenzene
T
µg/l
0.1
Pentachlorophenol5
T
µg/l
0.3
1.0a
Phenol
T
µg/l
4,000
Picloram
T
µg/l
500a
500a
Polychlorinated
						  biphenyls5
T
µg/l
0.00064
0.000026
Pyrene
T
µg/l
20
Selenium
TR
µg/l
50a
50a
Silvex (2,4,5-TP, 2-[2,4,5-Trichlorophenoxy]propionic
						  acid
T
µg/l
10
50a
Simazine
T
µg/l
4.0a
4.0a
Styrene
T
µg/l
100a
100a
Sulfates
T
mg/l
250a
250a
1,2,4,5-Tetrachlorobenzene
T
µg/l
0.03
2,3,7,8-Tetrachlorodibenzo-p-dioxin5
T
µg/l
5.0 *10-8
5.0 *10-8
1,1,2,2-Tetrachloroethane5
T
µg/l
1.7
Tetrachloroethylene5
T
µg/l
5.0a
5.0a
Thallium
TR
µg/l
1.7
Toluene
T
µg/l
57
57
Toxaphene5
T
µg/l
0.0028
0.00068
Trichloroacetic acid6
T
µg/l
60a
60a
1,2,4-Trichlorobenzene5
T
µg/l
0.71
70a
1,1,1-Trichloroethane
T
µg/l
200a
200a
1,1,2-Trichloroethane5
T
µg/l
5.0a
5.0a
Trichloroethylene5
T
µg/l
5.0a
5.0a
2,4,5-Trichlorophenol
T
µg/l
300
2,4,6-Trichlorophenol5
T
µg/l
14
Vinyl chloride5
T
µg/l
0.22
2.0a
Xylenes
T
µg/l
10,000a
10,000a
Zinc
T
µg/l
7,400
1 S = soluble; T = total; TR = total
				recoverable.
2 mg/l = milligrams per liter (parts
				per million); µg/l = micrograms per liter (parts per billion);
				 Mf/l = million
				fibers per liter.
3 OMZA = outside mixing zone
				average.
4 The criteria for this chemical
				apply to the sum of all dinitrophenols.
5 Criteria for this chemical are
				based on a carcinogenic endpoint.
6 The criterion for this
				chemical applies to the sum of chloroacetic acid, dichloroacetic acid and
				trichloroacetic acid.
7 The criteria for this
				chemical apply to the sum of alpha-endosulfan, beta-endosulfan and endosulfan
				sulfate.
8 The criteria for this
				chemical apply to the sum of endrin and endrin aldehyde.
a This criterion is the maximum
				contaminant level (MCL) developed under the "Safe Drinking Water Act".
b Equivalent 25ºC specific
				conductance values are 1200 micromhos/cm as a maximum and 800 micromhos/cm as a
				thirty day average.
Table 33-2. Pollutants subject to any methodologies and
				procedures acceptable under 40 C.F.R. 131 for water bodies located in the lake
				Erie drainage basin.
Alkalinity
Ammonia
Bacteria
Biochemical oxygen demand (BOD)
Chlorine
Color
Dissolved oxygen
Dissolved solids
pH
Phosphorus
Salinity
Temperature
Total and suspended solids
Turbidity