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Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR Tables to Part 132: Tables to Part 132

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Where this section sits in the code
  1. Title 40—Protection of Environment
  2. CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
  3. SUBCHAPTER D—WATER PROGRAMS
  4. PART 132—WATER QUALITY GUIDANCE FOR THE GREAT LAKES SYSTEM

Table 1—Acute Water Quality Criteria for Protection of Aquatic Life in Ambient Water

EPA recommends that metals criteria be expressed as dissolved concentrations (see appendix A, I.A.4 for more information regarding metals criteria).

(a)

Chemical CMC (µg/L) Conversion factor (CF)

Arsenic (III) a b 339.8 1.000

Chromium (VI) a b 16.02 0.982

Cyanide c 22 n/a

Dieldrin d 0.24 n/a

Endrin d 0.086 n/a

Lindane d 0.95 n/a

Mercury (II) a b 1.694 0.85

Parathion d 0.065 n/a

a CMC = CMCtr.

b CMCd = (CMCtr) CF. The CMCd shall be rounded to two significant digits.

c CMC should be considered free cyanide as CN.

d CMC = CMCt.

Notes:

The term “n/a” means not applicable.

CMC is Criterion Maximum Concentration.

CMCtr is the CMC expressed as total recoverable.

CMCd is the CMC expressed as a dissolved concentration.

CMCt is the CMC expressed as a total concentration.

(b)

Chemical mA bA Conversion factor (CF)

Cadmium a b 1.128 −3.6867 0.85

Chromium (III) a b 0.819 + 3.7256 0.316

Copper a b 0.9422 −1.700 0.960

Nickel a b 0.846 + 2.255 0.998

Pentachlorophenol c 1.005 −4.869 n/a

Zinc a b 0.8473 + 0.884 0.978

a CMCtr = exp {mA [ln (hardness)] + bA}.

b CMCd = (CMCtr) CF. The CMCd shall be rounded to two significant digits.

c CMCt = exp mA {[pH] + bA}. The CMCt shall be rounded to two significant digits.

Notes:

The term “exp” represents the base e exponential function.

The term “n/a” means not applicable.

CMC is Criterion Maximum Concentration.

CMCtr is the CMC expressed as total recoverable.

CMCd is the CMC expressed as a dissolved concentration.

CMCt is the CMC expressed as a total concentration.

Table 2—Chronic Water Quality Criteria for Protection of Aquatic Life in Ambient Water

EPA recommends that metals criteria be expressed as dissolved concentrations (see appendix A, I.A.4 for more information regarding metals criteria).

(a)

Chemical CCC (µg/L) Conversion factor (CF)

Arsenic (III) a b 147.9 1.000

Chromium (VI) a b 10.98 0.962

Cyanide c 5.2 n/a

Dieldrin d 0.056 n/a

Endrin d 0.036 n/a

Mercury (II) a b 0.9081 0.85

Parathion d 0.013 n/a

Selenium a b 5 0.922

a CCC = CCCtr.

b CCCd = (CCCtr) CF. The CCCd shall be rounded to two significant digits.

c CCC should be considered free cyanide as CN.

d CCC = CCCt.

Notes:

The term “n/a” means not applicable.

CCC is Criterion Continuous Concentration.

CCCtr is the CCC expressed as total recoverable.

CCCd is the CCC expressed as a dissolved concentration.

CCCt is the CCC expressed as a total concentration.

(b)

Chemical mc bc Conversion factor (CF)

Cadmium a b 0.7852 −2.715 0.850

Chromium (III) a b 0.819 + 0.6848 0.860

Copper a b 0.8545 −1.702 0.960

Nickel a b 0.846 + 0.0584 0.997

Pentachlorophenol c 1.005 −5.134 n/a

Zinc a b 0.8473 + 0.884 0.986

a CCCtr = exp {mc[ln (hardness)] + bc}.

b CCCd = (CCCtr) (CF). The CCCd shall be rounded to two significant digits.

c CMCt = exp {mA[pH] + bA}. The CMCt shall be rounded to two significant digits.

Notes:

The term “exp” represents the base e exponential function.

The term “n/a” means not applicable.

CCC is Criterion Continuous Concentration.

CCCtr is the CCC expressed as total recoverable.

CCCd is the CCC expressed as a dissolved concentration.

CCCt is the CCC expressed as a total concentration.

Table 3—Water Quality Criteria for Protection of Human Health

Chemical HNV (µg/L) HCV (µg/L)

Drinking Nondrinking Drinking Nondrinking

Benzene 1.9E1 5.1E2 1.2E1 3.1E2

Chlordane 1.4E-3 1.4E-3 2.5E-4 2.5E-4

Chlorobenzene 4.7E2 3.2E3

Cyanides 6.0E2 4.8E4

DDT 2.0E-3 2.0E-3 1.5E-4 1.5E-4

Dieldrin 4.1E-4 4.1E-4 6.5E-6 6.5E-6

2,4-Dimethylphenol 4.5E2 8.7E3

2,4-Dinitrophenol 5.5E1 2.8E3

Hexachlorobenzene 4.6E-2 4.6E-2 4.5E-4 4.5E-4

Hexachloroethane 6.0 7.6 5.3 6.7

Lindane 4.7E-1 5.0E-1

Mercury 1 1.8E-3 1.8E-3

Methylene chloride 1.6E3 9.0E4 4.7E1 2.6E3

2,3,7,8-TCDD 6.7E-8 6.7E-8 8.6E-9 8.6E-9

Toluene 5.6E3 5.1E4

Toxaphene 6.8E-5 6.8E-5

Trichloroethylene 2.9E1 3.7E2

1 Includes methylmercury.

Table 4—Water Quality Criteria for Protection of Wildlife

Chemical Criteria (µg/L)

DDT and metabolites 1.1E-5

Mercury (including methylmercury) 1.3E-3

PCBs (class) 1.2E-4

2,3,7,8-TCDD 3.1E-9

Table 5—Pollutants Subject to Federal, State, and Tribal Requirements

Alkalinity

Ammonia

Bacteria

Biochemical oxygen demand (BOD)

Chlorine

Color

Dissolved oxygen

Dissolved solids

pH

Phosphorus

Salinity

Temperature

Total and suspended solids

Turbidity

Table 6—Pollutants of Initial Focus in the Great Lakes Water Quality Initiative

A. Pollutants that are bioaccumulative chemicals of concern (BCCs):

Chlordane

4,4′-DDD; p,p′-DDD; 4,4′-TDE; p,p′-TDE

4,4′-DDE; p,p′-DDE

4,4′-DDT; p,p′-DDT

Dieldrin

Hexachlorobenzene

Hexachlorobutadiene; hexachloro-1, 3-butadiene

Hexachlorocyclohexanes; BHCs

alpha-Hexachlorocyclohexane; alpha-BHC

beta-Hexachlorocyclohexane; beta-BHC

delta-Hexachlorocyclohexane; delta-BHC

Lindane; gamma-hexachlorocyclohexane; gamma-BHC

Mercury

Mirex

Octachlorostyrene

PCBs; polychlorinated biphenyls

Pentachlorobenzene

Photomirex

2,3,7,8-TCDD; dioxin

1,2,3,4-Tetrachlorobenzene

1,2,4,5-Tetrachlorobenzene Toxaphene

B. Pollutants that are not bioaccumulative chemicals of concern:

Acenaphthene

Acenaphthylene

Acrolein; 2-propenal

Acrylonitrile

Aldrin

Aluminum

Anthracene

Antimony

Arsenic

Asbestos

1,2-Benzanthracene; benz[a]anthracene

Benzene

Benzidine

Benzo[a]pyrene; 3,4-benzopyrene

3,4-Benzofluoranthene; benzo[b]fluoranthene

11,12-Benzofluoranthene; benzo[k]fluoranthene

1,12-Benzoperylene; benzo[ghi]perylene

Beryllium

Bis(2-chloroethoxy) methane

Bis(2-chloroethyl) ether

Bis(2-chloroisopropyl) ether

Bromoform; tribomomethane

4-Bromophenyl phenyl ether

Butyl benzyl phthalate

Cadmium

Carbon tetrachloride; tetrachloromethane

Chlorobenzene

p-Chloro-m-cresol; 4-chloro-3-methylphenol

Chlorodibromomethane

Chlorethane

2-Chloroethyl vinyl ether

Chloroform; trichloromethane

2-Chloronaphthalene

2-Chlorophenol

4-Chlorophenyl phenyl ether

Chlorpyrifos

Chromium

Chrysene

Copper

Cyanide

2,4-D; 2,4-Dichlorophenoxyacetic acid

DEHP; di(2-ethylhexyl) phthalate

Diazinon

1,2:5,6-Dibenzanthracene; dibenz[a,h]anthracene

Dibutyl phthalate; di-n-butyl phthalate

1,2-Dichlorobenzene

1,3-Dichlorobenzene

1,4-Dichlorobenzene

3,3′-Dichlorobenzidine

Dichlorobromomethane; bromodichloromethane

1,1-Dichloroethane

1,2-Dichloroethane

1,1-Dichloroethylene; vinylidene chloride

1,2-trans-Dichloroethylene

2,4-Dichlorophenol

1,2-Dichloropropane

1,3-Dichloropropene; 1,3-dichloropropylene

Diethyl phthalate

2,4-Dimethylphenol; 2,4-xylenol

Dimethyl phthalate

4,6-Dinitro-o-cresol; 2-methyl-4,6-dinitrophenol

2,4-Dinitrophenol

2,4-Dinitrotoluene

2,6-Dinitrotoluene

Dioctyl phthalate; di-n-octyl phthalate

1,2-Diphenylhydrazine

Endosulfan; thiodan

alpha-Endosulfan

beta-Endosulfan

Endosulfan sulfate

Endrin

Endrin aldehyde

Ethylbenzene

Fluoranthene

Fluorene; 9H-fluorene

Fluoride

Guthion

Heptachlor

Heptachlor epoxide

Hexachlorocyclopentadiene

Hexachloroethane

Indeno[1,2,3-cd]pyrene; 2,3-o-phenylene pyrene

Isophorone

Lead

Malathion

Methoxychlor

Methyl bromide; bromomethane

Methyl chloride; chloromethane

Methylene chloride; dichloromethane

Napthalene

Nickel

Nitrobenzene

2-Nitrophenol

4-Nitrophenol

N-Nitrosodimethylamine

N-Nitrosodiphenylamine

N-Nitrosodipropylamine; N-nitrosodi-n-propylamine

Parathion

Pentachlorophenol

Phenanthrene

Phenol

Iron

Pyrene

Selenium

Silver

1,1,2,2-Tetrachloroethane

Tetrachloroethylene

Thallium

Toluene; methylbenzene

1,2,4-Trichlorobenzene

1,1,1-Trichloroethane

1,1,2-Trichloroethane

Trichloroethylene; trichloroethene

2,4,6-Trichlorophenol

Vinyl chloride; chloroethylene; chloroethene

Zinc

Collected 2026-08-27T02:26:04Z. Source file · JSON

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