3745-1-34 Water quality criteria for the Ohio river drainage basin.

(A) This rule applies in addition to the requirements contained in rule 3745-1-07 of the Administrative Code to water bodies within the Ohio river drainage basin. Except as provided in paragraph (D) of this rule, the methodologies contained in rule 3745-1-36 of the Administrative Code shall be used when adopting or revising numeric aquatic life water quality criteria and when implementing the narrative aquatic life water quality criteria contained in rule 3745-1-04 of the Administrative Code for water bodies located in the Ohio river drainage basin. Any methodologies and procedures acceptable under 40 C.F.R. 131 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 water bodies located in the Ohio river drainage basin.

(B) The chemical specific criteria listed in this rule apply as "Outside Mixing Zone Averages". 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 3745-2-05 and 3745-2-08 of the Administrative Code.

(C) The water quality criteria adopted in, or developed pursuant to, this rule shall apply as follows:

(1) To protect against adverse reproductive effects on wildlife, "the Outside Mixing Zone Average" criteria for polychlorinated biphenyls is 1.0 ng/l. In addition, any whole sample of any representative aquatic organisms shall not exceed 0.64 mg/kg (wet weight). These criteria, or site-specific modifications thereof, shall apply to all water bodies of the Ohio river drainage basin.

(2) The water quality criteria for protection of human health, or site-specific modifications thereof, are "Outside Mixing Zone Average" water quality criteria and shall apply as follows:

(a) The "Drinking" water quality criteria for the protection of human health shall apply to all water bodies located in the Ohio river drainage basin within five hundred yards of drinking water intakes.

(b) The "Nondrinking" water quality criteria for the protection of human health shall apply to all water bodies located in the Ohio river drainage basin other than those specified in paragraph (C)(3)(i) of this rule.

(D) 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.

Table 34-1. Ohio river drainage basin water quality criteria for the protection of human health.

        

OMZA3

Chemical

Form1

Units2

Drinking

Nondrinking

Acenaphthene

T

µg/l

1,200

2,700

Acrolein

T

µg/l

320

780

Acrylonitrile5

T

µg/l

0.59

6.6

Alachlor

T

µg/l

2.0a

--

Aldicarb6

T

µg/l

7.0a

--

Aldicarb sulfone6

T

µg/l

7.0a

--

Aldicarb sulfoxide6

T

µg/l

7.0a

--

Aldrin5

T

µg/l

0.0013

0.0014

Anthracene

T

µg/l

9,600

110,000

Antimony

TR

µg/l

6.0a

4,300

Arsenic

TR

µg/l

10a

--

Asbestos

T

Mf/l

7.0a

--

Atrazine

T

µg/l

3.0a

--

Barium

TR

µg/l

2,000a

--

Benzene5

T

µg/l

5.0a

710

Benzidine5

T

µg/l

0.0012

0.0054

Benzo(a)anthracene5

T

µg/l

0.044

0.49

Benzo(a)pyrene5

T

µg/l

0.044

0.49

Benzo(b)fluoranthene5

T

µg/l

0.044

0.49

Benzo(k)fluoranthene5

T

µg/l

0.044

0.49

Beryllium

TR

µg/l

4.0a

280

Bromate

T

µg/l

10a

--

Bromoform5

T

µg/l

43

3,600

Butylbenzyl phthalate

T

µg/l

3,000

5,200

Cadmium

TR

µg/l

5.0a

--

Carbofuran

T

µg/l

40a

--

Carbon tetrachloride5

T

µg/l

2.5

44

Chloramine

T

µg/l

4,000a

--

Chlordane5

T

µg/l

0.021

0.022

Chlorides

T

mg/l

250a

--

Chlorine

T

µg/l

4,000a

--

Chlorine dioxide

T

µg/l

800a

--

Chlorite

T

µg/l

1,000a

--

Chloroacetic acid7

T

µg/l

60a

--

Chlorobenzene

T

µg/l

100a

21,000

Chlorodibromomethane5

T

µg/l

4.1

340

Bis(2-Chloroethyl)ether5

T

µg/l

0.31

14

Chloroform5

T

µg/l

57

4,700

bis(2-Chloroisopropyl)ether

T

µg/l

1,400

170,000

bis(2-Chloromethyl)ether5

T

µg/l

0.0013

0.0078

2-Chloronaphthalene

T

µg/l

1,700

4,300

2-Chlorophenol

T

µg/l

120

400

Chromium

TR

µg/l

100a

--

Chrysene5

T

µg/l

0.044

0.49

Copper

TR

µg/l

--

1,300

Cyanide

free

µg/l

200a

220,000

2,4-D (2,4-Dichlorophenoxy-acetic acid)

T

µg/l

70a

--

Dalapon

T

µg/l

200a

--

4,4'-DDD5

T

µg/l

0.0083

0.0084

4,4'-DDE5

T

µg/l

0.0059

0.0059

4,4'-DDT5

T

µg/l

0.0059

0.0059

Dibenzo(a,h)anthracene5

T

µg/l

0.044

0.49

Dibromochloropropane

T

µg/l

0.2a

--

Di-n-butyl phthalate

T

µg/l

2,700

12,000

Dichloroacetic acid7

T

µg/l

60a

--

1,2-Dichlorobenzene

T

µg/l

600a

17,000

1,3-Dichlorobenzene

T

µg/l

400

2,600

1,4-Dichlorobenzene

T

µg/l

75a

2,600

3,3'-Dichlorobenzidine5

T

µg/l

0.40

0.77

Dichlorobromomethane5

T

µg/l

5.6

460

1,2-Dichloroethane5

T

µg/l

3.8

990

1,1-Dichloroethylene5

T

µg/l

0.57

32

cis-1,2-Dichloroethylene

T

µg/l

70a

--

trans-1,2-Dichloroethylene

T

µg/l

100a

140,000

2,4-Dichlorophenol

T

µg/l

93

790

1,2-Dichloropropane5

T

µg/l

5.0a

390

1,3-Dichloropropene

T

µg/l

10

1,700

Dieldrin5

T

µg/l

0.0014

0.0014

Di(2-ethylhexyl)adipate

T

µg/l

400a

--

Diethyl phthalate

T

µg/l

23,000

120,000

2,4-Dimethylphenol

T

µg/l

540

2,300

Dimethyl phthalate

T

µg/l

310,000

2,900,000

4,6-Dinitro-o-cresol (4,6-Dinitro-2-methylphenol)

T

µg/l

13

770

Dinitrophenols4

T

µg/l

70

14,000

2,4-Dinitrotoluene5

T

µg/l

1.1

91

Dinoseb

T

µg/l

7.0a

--

1,2-Diphenylhydrazine5

T

µg/l

0.40

5.4

Diquat

T

µg/l

20a

--

Dissolved solids

T

mg/l

750/500a,b

--

alpha-Endosulfan8

T

µg/l

110

240

beta-Endosulfan8

T

µg/l

110

240

Endosulfan sulfate8

T

µg/l

110

240

Endothall

T

µg/l

100a

--

Endrin9

T

µg/l

0.76

0.81

Endrin aldehyde9

T

µg/l

0.76

0.81

Ethylbenzene

T

µg/l

700a

29,000

Ethylene dibromide (EDB)

T

µg/l

0.050a

--

bis(2-Ethylhexyl)phthalate5

T

µg/l

6.0a

59

Fluoranthene

T

µg/l

300

370

Fluorene

T

µg/l

1,300

14,000

Fluoride

T

µg/l

4,000a

--

Glyphosate

T

µg/l

700a

--

Heptachlor5

T

µg/l

0.0021

0.0021

Heptachlor epoxide5

T

µg/l

0.0010

0.0011

Hexachlorobenzene5

T

µg/l

0.0075

0.0077

Hexachlorobutadiene5

T

µg/l

4.4

500

alpha-Hexachlorocyclohexane5

T

µg/l

0.039

0.13

beta-Hexachlorocyclohexane5

T

µg/l

0.14

0.46

gamma-Hexachlorocyclohexane (Lindane)5

T

µg/l

0.19

0.63

Hexachlorocyclohexane - technical grade5

T

µg/l

0.12

0.41

Hexachlorocyclopentadiene

T

µg/l

50a

17,000

Hexachloroethane5

T

µg/l

19

89

Indeno(1,2,3-c,d)pyrene5

T

µg/l

0.044

0.49

Iron

S

µg/l

300a

--

Isophorone5

T

µg/l

360

26,000

Mercury

TR

µg/l

0.012

0.012

Methoxychlor

T

µg/l

40a

--

Methyl bromide

T

µg/l

48

4,000

Methylene chloride5

T

µg/l

5.0a

16,000

Nickel

TR

µg/l

610

4,600

Nitrate-N + Nitrite-N

T

µg/l

10,000a

--

Nitrite-N

T

µg/l

1,000a

--

Nitrobenzene

T

µg/l

17

1,900

Nitrosoamines5

T

µg/l

0.0080

12

N-Nitrosodibutylamine5

T

µg/l

0.064

5.9

N-Nitrosodiethylamine5

T

µg/l

0.0080

12

N-Nitrosodimethylamine5

T

µg/l

0.0069

81

N-Nitrosodi-n-propylamine5

T

µg/l

0.050

14

N-Nitrosodiphenylamine5

T

µg/l

50

160

N-Nitrosodipyrrolidine5

T

µg/l

0.16

920

Oxamyl (Vydate)

T

µg/l

200a

--

Pentachlorobenzene

T

µg/l

3.5

4.1

Pentachlorophenol5

T

mg/l

1.0a

82

Phenol

T

µg/l

21,000

4,600,000

Picloram

T

µg/l

500a

--

Polychlorinated biphenyls5

T

µg/l

0.0017

0.0017

Pyrene

T

µg/l

960

11,000

Selenium

TR

µg/l

50a

11,000

Silvex (2,4,5-TP, 2-[2,4,5-Trichlorophenoxy]propionic acid

T

µg/l

10

--

Simazine

T

µg/l

4.0a

--

Styrene

T

µg/l

100a

--

Sulfates

T

mg/l

250a

--

1,2,4,5-Tetrachlorobenzene

T

µg/l

2.3

2.9

2,3,7,8-Tetrachlorodibenzo-p-dioxin5

T

pg/l

0.13

0.14

1,1,2,2-Tetrachloroethane5

T

µg/l

1.7

110

Tetrachloroethylene5

T

µg/l

5.0a

89

Thallium

TR

µg/l

1.7

--

Toluene

T

µg/l

1,000a

200,000

Toxaphene5

T

µg/l

0.0073

0.0075

Trichloroacetic acid7

T

µg/l

60a

--

1,2,4-Trichlorobenzene

T

µg/l

70a

940

1,1,1-Trichloroethane

T

µg/l

200a

--

1,1,2-Trichloroethane5

T

µg/l

5.0a

420

Trichloroethylene5

T

µg/l

5.0a

810

2,4,5-Trichlorophenol

T

µg/l

2,600

9,800

2,4,6-Trichlorophenol5

T

µg/l

21

65

Vinyl chloride5

T

µg/l

2.0a

5,300

Xylenes

T

µg/l

10,000a

--

Zinc

T

µg/l

9,100

69,000

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); ng/l = nanograms per liter (parts per trillion); pg/l = picograms per liter (parts per quadrillion); 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 aldicarb, aldicarb sulfone and aldicarb sulfoxide.

7 The criterion for this chemical applies to the sum of chloroacetic acid, dichloroacetic acid and trichloroacetic acid.

8 The criteria for this chemical apply to the sum of alpha-endosulfan, beta-endosulfan and endosulfan sulfate.

9 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 25°C specific conductance values are 1200 micromhos/cm as a maximum and 800 micromhos/cm as a thirty day average.

Effective: 10/01/2014
R.C. 119.032 review dates: 12/30/2007
Promulgated Under: 119.03
Statutory Authority: 6111.041
Rule Amplifies: 6111.041
Prior Effective Dates: 2/14/1978, 4/4/1985, 8/19/1985, 4/30/1987, 5/1/1990, 4/26/1997, 10/31/1997, 7/31/1998, 7/31/1999, 2/22/2002, 12/30/2002