3745-1-33 Water quality criteria for water supply use designations.

[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 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

1,200

  

Acrolein

T

µg/l

320

  

Acrylonitrile5

T

µg/l

0.59

  

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

  

Anthracene

T

µg/l

9,600

  

Antimony

TR

µg/l

6.0a

  

Arsenic

TR

µg/l

10a

10

Asbestos

T

Mf/l

7.0a

  

Atrazine

T

µg/l

3.0a

  

Barium

TR

µg/l

2,000a

  

Benzene5

T

µg/l

5.0a

12

Benzidine5

T

µg/l

0.0012

  

Benzo(a)anthracene5

T

µg/l

0.044

  

Benzo(a)pyrene5

T

µg/l

0.044

  

Benzo(b)fluoranthene5

T

µg/l

0.044

  

Benzo(k)fluoranthene5

T

µg/l

0.044

  

Beryllium

TR

µg/l

4.0a

  

Bromate

T

µg/l

10a

  

Bromoform5

T

µg/l

43

  

Butylbenzyl phthalate

T

µg/l

3,000

  

Cadmium

TR

µg/l

5.0a

  

Carbofuran

T

µg/l

40a

  

Carbon tetrachloride5

T

µg/l

2.5

  

Chloramine

T

µg/l

4,000a

  

Chlordane5

T

µg/l

0.021

0.00025

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 acid7

T

µg/l

60a

  

Chlorobenzene

T

µg/l

100a

470

Chlorodibromomethane5

T

µg/l

4.1

  

Bis(2-Chloroethyl)ether5

T

µg/l

0.31

  

Chloroform5

T

µg/l

57

  

bis(2-Chloroisopropyl)ether

T

µg/l

1,400

  

bis(2-Chloromethyl)ether5

T

µg/l

0.0013

  

2-Chloronaphthalene

T

µg/l

1,700

  

2-Chlorophenol

T

µg/l

120

  

Chromium

TR

µg/l

100a

  

Chrysene5

T

µg/l

0.044

  

Cyanide

free

µg/l

200a

600

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

  

4,4'-DDE5

T

µg/l

0.0059

  

4,4'-DDT5

T

µg/l

0.0059

0.00015

Dibenzo(a,h)anthracene5

T

µg/l

0.044

  

Dibromochloropropane

T

µg/l

0.2a

  

Di-n-butyl phthalate

T

µg/l

2,700

  

Dichloroacetic acid7

T

µg/l

60a

  

1,2-Dichlorobenzene

T

µg/l

600a

  

1,3-Dichlorobenzene

T

µg/l

400

  

1,4-Dichlorobenzene

T

µg/l

75a

  

3,3'-Dichlorobenzidine5

T

µg/l

0.40

  

Dichlorobromomethane5

T

µg/l

5.6

  

1,2-Dichloroethane5

T

µg/l

3.8

  

1,1-Dichloroethylene5

T

µg/l

0.57

  

cis-1,2-Dichloroethylene

T

µg/l

70a

  

trans-1,2-Dichloroethylene

T

µg/l

100a

  

2,4-Dichlorophenol

T

µg/l

93

  

1,2-Dichloropropane5

T

µg/l

5.0a

  

1,3-Dichloropropene

T

µg/l

10

  

Dieldrin5

T

µg/l

0.0014

0.0000065

Di(2-ethylhexyl)adipate

T

µg/l

400a

  

Diethyl phthalate

T

µg/l

23,000

  

2,4-Dimethylphenol

T

µg/l

540

450

Dimethyl phthalate

T

µg/l

310,000

  

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

T

µg/l

13

  
  

Dinitrophenols4

T

µg/l

70

  

2,4-Dinitrophenol

T

µg/l

--

55

2,4-Dinitrotoluene5

T

µg/l

1.1

  

Dinoseb

T

µg/l

7.0a

  

1,2-Diphenylhydrazine5

T

µg/l

0.40

  

Diquat

T

µg/l

20a

  

Dissolved solids

T

mg/l

750/500a,b

750/500b

alpha-Endosulfan8

T

µg/l

110

  

beta-Endosulfan8

T

µg/l

110

  

Endosulfan sulfate8

T

µg/l

110

  

Endothall

T

µg/l

100a

  

Endrin9

T

µg/l

0.76

  

Endrin aldehyde9

T

µg/l

0.76

  

Ethylbenzene

T

µg/l

700a

  

Ethylene dibromide (EDB)

T

µg/l

0.050a

  

bis(2-Ethylhexyl)phthalate5

T

µg/l

6.0a

  

Fluoranthene

T

µg/l

300

  

Fluorene

T

µg/l

1,300

  

Fluoride

T

µg/l

4,000a

  

Glyphosate

T

µg/l

700a

  

Heptachlor5

T

µg/l

0.0021

  

Heptachlor epoxide5

T

µg/l

0.0010

  

Hexachlorobenzene5

T

µg/l

0.0075

0.00045

Hexachlorobutadiene5

T

µg/l

4.4

  

alpha-Hexachlorocyclohexane5

T

µg/l

0.039

  

beta-Hexachlorocyclohexane5

T

µg/l

0.14

  

gamma-Hexachlorocyclohexane (Lindane)5

T

µg/l

0.19

0.47

Hexachlorocyclohexane - technical grade5

T

µg/l

0.12

  

Hexachlorocyclopentadiene

T

µg/l

50a

  

Hexachloroethane5

T

µg/l

19

5.3

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

T

µg/l

0.044

  

Iron

S

µg/l

300a

300

Isophorone5

T

µg/l

360

  

Mercury

TR

µg/l

0.012

0.0031

Methoxychlor

T

µg/l

40a

  

Methyl bromide

T

µg/l

48

  

Methylene chloride5

T

µg/l

5.0a

47

Nickel

TR

µg/l

610

  

Nitrate-N + Nitrite-N

T

µg/l

10,000a

10,000

Nitrite-N

T

µg/l

1,000a

  

Nitrobenzene

T

µg/l

17

  

Nitrosoamines5

T

µg/l

0.0080

  

N-Nitrosodibutylamine5

T

µg/l

0.064

  

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

50

  

N-Nitrosodipyrrolidine5

T

µg/l

0.16

  

Oxamyl (Vydate)

T

µg/l

200a

  

Pentachlorobenzene

T

µg/l

3.5

  

Pentachlorophenol5

T

mg/l

1.0a

  

Phenol

T

µg/l

21,000

  

Picloram

T

µg/l

500a

  

Polychlorinated biphenyls5

T

µg/l

0.0017

0.000026

Pyrene

T

µg/l

960

  

Selenium

TR

µg/l

50a

  

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

250

1,2,4,5-Tetrachlorobenzene

T

µg/l

2.3

  

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

T

pg/l

0.13

0.0086

1,1,2,2-Tetrachloroethane5

T

µg/l

1.7

  

Tetrachloroethylene5

T

µg/l

5.0a

  

Thallium

TR

µg/l

1.7

  

Toluene

T

µg/l

1,000a

5,600

Toxaphene5

T

µg/l

0.0073

0.000068

Trichloroacetic acid7

T

µg/l

60a

  

1,2,4-Trichlorobenzene

T

µg/l

70a

  

1,1,1-Trichloroethane

T

µg/l

200a

  

1,1,2-Trichloroethane5

T

µg/l

5.0a

  

Trichloroethylene5

T

µg/l

5.0a

29

2,4,5-Trichlorophenol

T

µg/l

2,600

  

2,4,6-Trichlorophenol5

T

µg/l

21

  

Vinyl chloride5

T

µg/l

2.0a

  

Xylenes

T

µg/l

10,000a

  

Zinc

T

µg/l

9,100

  

1S = soluble; T = total; TR = total recoverable.

2mg/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.

3OMZA = outside mixing zone average.

4The criteria for this chemical apply to the sum of all dinitrophenols.

5Criteria for this chemical are based on a carcinogenic endpoint.

6The criterion for this chemical applies to the sum of aldicarb, aldicarb sulfone and aldicarb sulfoxide.

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

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

9The 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 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

Salinitv

Temperature

Total and suspended solids

Turbidity

(B) Agricultural water supply criteria.

(1) The chemical-specific criteria listed in table 33-3 of this rule apply as "Outside Mixing Zone Averages." For the purpose of setting water quality based effluent limits, the 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) The water quality criteria for the protection of agricultural uses, or site-specific modifications thereof, adopted in. or developed pursuant to. this rule shall apply outside the mixing zone to all water bodies assigned the agricultural water supply use designation.

(3) For any pollutant in table 33-3 of this rule for which it is demonstrated that a methodology or procedure cited in this chapter 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 33-3. Statewide water quality criteria for the protection of agricultural uses.

Chemical

Form1

Units2

OMZA3

Arsenic

TR

µg/l

100

Beryllium

TR

µg/l

100

Cadmium

TR

µg/l

50

Total chromium

TR

µg/l

100

Copper

TR

µg/l

500

Fluoride

TR

µg/l

2,000

Iron

TR

µg/l

5,000

Lead

TR

µg/l

100

Mercury

TR

µg/l

10

Nickel

TR

µg/l

200

Nitrates+nitrites

TR

mg/l

100

Selenium

TR

µg/l

50

Zinc

TR

µg/l

25,000

1T = total; TR = total recoverable.

2mg/l = milligrams per liter (parts per million); µg/l = micrograms per liter (parts per billion).

3OMZA = outside mixing zone average.

Replaces: Part of: 3745-1-33, 3745-1-34

Cite as Ohio Admin. Code 3745-1-33

Effective: 2/6/2017
Five Year Review (FYR) Dates: 02/06/2022
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, 10/1/2014, 8/10/2016