3745-1-33 Water quality criteria for the lake Erie drainage basin.

[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) This rule applies in addition to the requirements contained in rule 3745-1-07 of the Administrative Code to water bodies within the lake Erie drainage basin. Except as provided in paragraphs (D) and (E) of this rule, the methodologies contained in rules 3745-1-35, 3745-1-36, 3745-1-37, 3745-1-38 and 3745-1-39 of the Administrative Code shall be used when adopting or revising numeric aquatic life, human health and wildlife water quality criteria and when implementing the narrative water quality criteria contained in rule 3745-1-04 of the Administrative Code for water bodies located in the lake Erie 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 and values adopted in, or developed pursuant to, this rule shall apply as follows:

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

(i) The "Drinking" water quality criteria and values for the protection of human health shall apply to all water bodies located in the lake Erie drainage basin within five hundred yards of drinking water intakes.

(ii) The "Nondrinking" water quality criteria and values for the protection of human health shall apply to all water bodies located in the lake Erie drainage basin other than those specified in paragraph (C)(1)(i) of this rule.

(2) Criteria for protection of wildlife, or site-specific modifications thereof, are "Outside Mixing Zone Average" water quality criteria and shall apply to all water bodies located in the lake Erie drainage basin.

(D) For pollutants listed in table 33-1 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.

(E) For any pollutant other than those in table 33-1 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

Pollutants subject to any methodologies and procedures acceptable under 40 C.F.R. 131.

 

Alkalinity

 

Ammonia

 

Bacteria

 

Biochemical oxygen demand (BOD)

 

Chlorine

 

Color

 

Dissolved oxygen

 

Dissolved solids

 

pH

 

Phosphorus

 

Salinity

 

Temperature

 

Total and suspended solids

 

Turbidity

Table 33-2. Lake Erie drainage basin water quality criteria for the protection of human health and wildlife.

     

Human Health OMZA3

Wildlife

Chemical

Form1

Units1

Drinking

Nondrinking

OMZA3

Arsenic

TR

µg/l

10

--

--

Benzene4

T

µg/l

12

310

--

Chlordane4

T

ng/l

0.25

0.25

--

Chlorides

T

mg/l

250

--

--

Chlorobenzene

T

µg/l

470

3200

--

Cyanides

T

mg/l

0.60

48

--

DDT4

T

ng/l

0.15

0.15

0.011a

Dieldrin4

T

ng/l

0.0065

0.0065

--

2,4-Dimethylphenol

T

µg/l

450

8700

--

2,4-Dinitrophenol

T

µg/l

55

2800

--

Dissolved solids

T

mg/l

750/500b

--

--

Hexachlorobenzene4

T

ng/l

0.45

0.45

--

Hexachlorethane4

T

µg/l

5.3

6.7

--

Iron

S

µg/l

300

--

--

Lindane

T

µg/l

0.47

0.50

--

Mercury

TR

µg/l

0.0031

0.0031

0.0013

Methylene chloride4

T

µg/l

47

2600

--

Nitrate-N + Nitrite-N

T

mg/l

10

--

--

PCB4

T

ng/l

0.026

0.026

0.12

Sulfates

T

mg/l

250

--

--

2,3,7,8-TCDD4

T

pg/l

0.0086

0.0086

0.0031

Toluene

T

µg/l

5600

51000

--

Toxaphene4

T

ng/l

0.068

0.068

--

Trichloroethylene4

T

µg/l

29

370

--

           

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).

3 OMZA = outside mixing zone average.

4 Human health criteria for this chemical are based on a carcinogenic endpoint.

a This criterion applies to the sum of DDT and metabolites.

b Equivalent 25ºC specific conductance values are 1200 micromhos/cm as a maximum and 800 micromhos/cm as a thirty-day average.

Effective: 8/10/2016
Five Year Review (FYR) Dates: 02/25/2016 and 02/25/2021
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, 2/22/2002, 12/30/2002