Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-1 - Water Quality Standards › Section 3745-1-32 - Ohio river standards

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) The
			 Ohio river is designated warmwater habitat, public water supply, agricultural
			 water supply, industrial water supply and bathing waters, and will meet the
			 most stringent criteria set forth in, or derived in accordance with, this rule,
			 rules
			 3745-1-01
			 to
			 3745-1-07
			 and
			 3745-1-33
			 to
			 3745-1-40
			 of the Administrative Code.
Table 32-1. Water quality criteria for the Ohio river.
Chemical
Form1
Units2
IMZM3
OMZM3
OMZA3
Bacteria (E.
						  coli)a
T
cfu/100 mL
126
126
126
Bacteria (E.
						  coli)b
T
cfu/100 mL
410
410
410
Bacteria (fecal coliform)c
T
cfu/ 100 mL
2,000
2,000
2,000
Cyanide
free
µg/l
44
22
5.2
Dissolved oxygen4
T
mg/l
--
4.0d
5.0
Radionuclides
T
--
e
e
Temperature
--
°F
--
Table 32-3
Table 32-3
1T = total.
2mg/l = milligrams per liter (parts
				per million); µg/l = micrograms per liter (parts per billion); °F = degrees
				Fahrenheit; cfu/100 mL = colony forming units per one
				hundred milliliters.
3IMZM = inside mixing zone maximum;
				OMZM = outside mixing zone maximum; OMZA = outside mixing zone average.
4For dissolved oxygen, OMZM means
				outside mixing zone minimum at any time and OMZA means outside mixing zone
				minimum daily average.
aCriterion applies for contact recreation during the months
				of May through October and is expressed as a ninety-day geometric
				mean.
b Criterion
				applies for contact recreation during the months of May through October and is
				not to be exceeded in more than ten per cent of samples taken during any
				ninety-day period.
c Criterion
				applies at all times and is expressed as a monthly geometric mean based on not
				less than five samples per month. For the months of May through October,
				measurements of E. coli bacteria may be substituted for fecal
				coliform.
d A minimum of 5.0 mg/l at
				any time shall be maintained during the April fifteen to June fifteen spawning
				season.
e Gross total alpha
				particle activity (including radium-226, but excluding radon and uranium) shall
				not exceed fifteen picocuries per liter (pci/l) and combined radium-226 and
				radium-228 shall not exceed four pci/l. The concentration of total gross beta
				particle activity shall not exceed fifty pci/l. The concentration of total
				strontium-90 shall not exceed eight pci/l.
Table 32-2. Ohio river water quality criteria for the
				protection of human health.
OMZA3
Chemical
Form1
Units2
Intakes
Elsewhere
Acenaphthene
T
µg/l
70
70
Acrolein
T
µg/l
3.0
3.0
Acrylonitrile5
T
µg/l
0.51
0.51
Alachlor
T
µg/l
2.0a
--
Aldrin5
T
µg/l
7.7 *10-6
7.7 *10-6
Anthracene
T
µg/l
300
300
Antimony
TR
µg/l
5.6
5.6
Arsenic
TR
µg/l
10a
50
Asbestos
T
Mf/l
7.0a
--
Atrazine
T
µg/l
3.0a
--
Barium
TR
µg/l
1,000
1,000
Benzene5
T
µg/l
5.0a
12
Benzidine5
T
µg/l
0.00086
0.0008
Benzo(a)anthracene5
T
µg/l
0.012
0.012
Benzo(a)pyrene5
T
µg/l
0.0012
0.0012
Benzo(b)fluoranthene5
T
µg/l
0.012
0.012
Benzo(k)fluoranthene5
T
µg/l
0.038
0.038
Beryllium
TR
µg/l
4.0a
16
Bromate
T
µg/l
10a
--
Bromoform (Tribromomethane)5
T
µg/l
43
43
Butylbenzyl phthalate5
T
µg/l
1.0
1.0
Cadmium
TR
µg/l
5.0a
--
Carbofuran
T
µg/l
40a
--
Carbon tetrachloride5
T
µg/l
2.3
2.3
Chloramine
T
µg/l
4,000a
--
Chlordane5
T
µg/l
0.0031
0.0031
Chlorides
T
mg/l
250a
250
Chlorine
T
µg/l
4,000a
--
Chlorine dioxide
T
µg/l
800a
--
Chlorite
T
µg/l
1,000a
--
Chloroacetic acid6
T
µg/l
60a
--
Chlorobenzene
T
µg/l
100a
100
Chlorodibromomethane5
T
µg/l
4.0
4.0
Bis(2-Chloro-1-methylethyl)
						  ether
T
µg/l
200
200
Bis(2-Chloroethyl)
						  ether5
T
µg/l
0.30
0.30
Chloroform5
T
µg/l
57
57
bis(2-Chloroisopropyl) ether
T
µg/l
1,400
1,400
bis(2-Chloromethyl)
						  ether5
T
µg/l
0.0015
0.0015
2-Chloronaphthalene
T
µg/l
800
800
2-Chlorophenol
T
µg/l
30
30
Chromium
TR
µg/l
100a
--
Chrysene5
T
µg/l
0.038
0.038
Cyanide
free
µg/l
4.0
4.0
2,4-D (2,4-Dichlorophenoxy-acetic acid)
T
µg/l
70a
1,300
Dalapon
T
µg/l
200a
--
4,4'-DDD5
T
µg/l
0.0012
0.0012
4,4'-DDE5
T
µg/l
0.00018
0.00018
4,4'-DDT5
T
µg/l
0.0003
0.0003
Dibenzo (a,h)
						  anthracene5
T
µg/l
0.0012
0.0012
Dibromochloropropane
T
µg/l
0.2a
--
Di-n-butyl phthalate
T
µg/l
20
20
Dichloroacetic acid6
T
µg/l
60a
--
1,2-Dichlorobenzene
T
µg/l
420
420
1,3-Dichlorobenzene
T
µg/l
7.0
7.0
1,4-Dichlorobenzene
T
µg/l
63
63
3,3'-Dichlorobenzidine5
T
µg/l
0.21
0.21
Dichlorobromomethane5
T
µg/l
5.5
5.5
1,2-Dichloroethane5
T
µg/l
3.8
3.8
1,1-Dichloroethylene5
T
µg/l
7.0a
300
cis-1,2-Dichloroethylene
T
µg/l
70a
--
trans-1,2-Dichloroethylene
T
µg/l
100a
100
2,4-Dichlorophenol
T
µg/l
10
10
1,2-Dichloropropane5
T
µg/l
5.0a
5.0
1,3-Dichloropropene5
T
µg/l
2.7
2.7
Dieldrin5
T
µg/l
1.2 *10-5
1.2 *10-5
Di (2-ethylhexyl) adipate
T
µg/l
400a
--
Diethyl phthalate
T
µg/l
600
600
2,4-Dimethylphenol
T
µg/l
100
100
Dimethyl phthalate
T
µg/l
2,000
2,000
4,6-Dinitro-o-cresol (4,6-
						  Dinitro-2-methylphenol)
T
µg/l
2.0
2.0
Dinitrophenols4
T
µg/l
10
10
2,4-Dinitrotoluene5
T
µg/l
0.49
0.49
2,4-Dinitrophenol
T
µg/l
10
10
Dinoseb
T
µg/l
7.0a
--
1,2-Diphenylhydrazine
T
µg/l
0.30
0.30
Diquat
T
µg/l
20a
--
Dissolved solids
T
mg/l
750/500a,b
--
alpha-Endosulfan7
T
µg/l
20
20
beta-Endosulfan7
T
µg/l
20
20
Endosulfan sulfate7
T
µg/l
20
20
Endothall
T
µg/l
100a
--
Endrin8
T
µg/l
0.03
0.03
Endrin aldehyde8
T
µg/l
0.29
0.29
Ethylbenzene
T
µg/l
68
68
Ethylene dibromide (EDB)
T
µg/l
0.050a
--
bis (2-Ethylhexyl)
						  phthalate5
T
µg/l
3.2
3.2
Fluoranthene
T
µg/l
20
20
Fluorene
T
µg/l
50
50
Fluoride
T
µg/l
1,000
1,000
Glyphosate
T
µg/l
700a
--
Heptachlor5
T
µg/l
5.9 *10-5
5.9 *10-5
Heptachlor epoxide5
T
µg/l
0.00032
0.00032
Hexachlorobenzene5
T
µg/l
0.00079
0.00079
Hexachlorobutadiene5
T
µg/l
0.1
0.1
alpha-Hexachlorocyclohexane5
T
µg/l
0.0036
0.0036
beta-Hexachlorocyclohexane5
T
µg/l
0.08
0.08
gamma-Hexachlorocyclohexane (Lindane)
T
µg/l
0.20a
0.98
Hexachlorocyclohexane - technical
						  grade5
T
µg/l
0.066
0.066
Hexachlorocyclopentadiene
T
µg/l
4.0
4.0
Hexachloroethane5
T
µg/l
1.0
1.0
Indeno (1,2,3-c,d)
						  pyrene5
T
µg/l
0.012
0.012
Iron
S
µg/l
300a
--
Isophorone5
T
µg/l
340
340
Mercury
TR
µg/l
0.012
0.012
Methoxychlor
T
µg/l
0.02
0.02
Methyl bromide
T
µg/l
47
47
3-Methyl-4-chlorophenol
T
µg/l
500
500
Methylene chloride5
T
µg/l
5.0a
46
Nickel
TR
µg/l
610
610
Nitrate-N + Nitrite-N
T
µg/l
10,000a
10,000
Nitrite-N
T
µg/l
1,000a
1,000
Nitrobenzene
T
µg/l
10
10
Nitrosoamines5
T
µg/l
0.0080
0.0080
N-Nitrosodibutylamine5
T
µg/l
0.063
0.063
N-Nitrosodiethylamine5
T
µg/l
0.0080
0.0080
N-Nitrosodimethylamine5
T
µg/l
0.0069
0.0069
N-Nitrosodi-n-propylamine5
T
µg/l
0.050
0.050
N-Nitrosodiphenylamine5
T
µg/l
33
33
N-Nitrosodipyrrolidine5
T
µg/l
0.16
0.16
Oxamyl (Vydate)
T
µg/l
200a
--
Pentachlorobenzene
T
µg/l
0.1
0.1
Pentachlorophenol5
T
µg/l
0.3
0.3
Phenol
T
µg/l
4,000
4,000
Phenolics
T
µg/l
5.0
--
Picloram
T
µg/l
500a
--
Polychlorinated
						  biphenyls5
T
µg/l
0.00064
0.00064
Pyrene
T
µg/l
20
20
Selenium
TR
µg/l
50a
170
Silver
T
µg/l
50
50
Silvex (2, 4, 5-TP, 2- [2, 4, 5-Trichlorophenoxy]
						  propionic acid
T
µg/l
50a
100
Simazine
T
µg/l
4.0a
--
Styrene
T
µg/l
100a
--
Sulfates
T
mg/l
250a
--
1, 2, 4, 5-Tetrachlorobenzene
T
µg/l
0.03
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
1.7
Tetrachloroethylene5
T
µg/l
5.0a
6.9
Thallium
TR
µg/l
1.7
1.7
Toluene
T
µg/l
57
57
Toxaphene5
T
µg/l
0.0028
0.0028
Trichloroacetic acid6
T
µg/l
60a
--
1, 2, 4-Trichlorobenzene5
T
µg/l
0.71
0.71
1, 1, 1-Trichloroethane
T
µg/l
200a
10,000
1, 1,
						  2-Trichloroethane5
T
µg/l
5.0a
5.5
Trichloroethylene5
T
µg/l
5.0a
6.0
2, 4, 5-Trichlorophenol
T
µg/l
300
300
2, 4,
						  6-Trichlorophenol5
T
µg/l
14
14
Vinyl chloride5
T
µg/l
0.22
0.22
Xylenes
T
µg/l
10,000a
--
Zinc
T
µg/l
7,400
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. Criteria in the "Intakes" column apply within five hundred yards of
						  drinking water intakes. Criteria in the "Elsewhere" column apply at all other
						  locations.
4The criteria for this
						  chemical apply to the sum of all dinitrophenols.
5Criteria 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 endolsufan
						  sulfate.
8 The criteria for this
						  chemical apply to the sum of endrin and endrin aldehyde.
aThis criterion is the
						  maximum contaminant level (MCL) developed under the "Safe Drinking Water
						  Act".
bEquivalent 25°C specific
						  conductance values are 1200 micromhos/cm as a maximum and 800 micromhos/cm as a
						  thirty-day average.
Table 32-3. Ohio river temperature criteria.
PA state line to Greenup Lock
						  and Dam (RM 341.1 )
PA state line to Greenup Lock
						  and Dam (RM 341.1 )
Greenup Lock and Dam (RM 341.1
						  ) to IN state line
Greenup Lock and Dam (RM 341.1
						  ) to IN state line
Month/date
Period Average (ºF)
Instantaneous Maximum
						  (ºF)
Period Average
						  (ºF)
Instantaneous Maximum (ºF)
January 1 - 31
45.7
47.0
46.8
47.2
February 1 - 29
43.9
46.3
47.9
52.8
March 1 - 31
51.2
56.4
57.4
62.4
April 1 -30
61.2
66.3
66.9
71.1
May 1 -31
71.2
76.5
76.4
81.4
June 1 - 14
78.8
81.0
83.5
85.7
June 15 - 30
87.0
87.0
87.0
87.0
July 1 -31
89.0
89.0
89.0
89.0
August 1- 31
89.0
89.0
89.0
89.0
September 1 -15
87.0
87.0
87.0
87.0
September 16 -30
81.0
83.1
84.7
87.0
October 1 -31
74.1
78.3
76.7
81.6
November 1 -30
65.0
69.0
66.2
70.8
December 1 -31
55.8
60.0
55.6
60.4