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Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 439, App. A—Tables

Current as of January 02, 2025 | Updated by Findlaw Staff

TABLE 1—SURROGATE PARAMETERS FOR DIRECT DISCHARGERS

[Utilizing biological treatment technology]

Regulated parameters

Treatability class

Amyl alcohol

Alcohols.

Ethanol1

Isopropanol1

Methanol1

Phenol

Isobutyraldehyde1

Aldehydes.

n-Heptane1

Alkanes.

n-Hexane1

Diethylamine1

Amines.

Triethylamine

Benzene

Aromatics.

Toluene1

Xylenes1

Chlorobenzene

o-Dichlorobenzene

Chloroform1

Chlorinated Alkanes.

Methylene chloride1

1,2-Dichloroethane1

Ethyl acetate1

Esters.

Isopropyl acetate

n-Amyl acetate

n-Butyl acetate

Methyl formate

Tetrahydrofuran1

Ethers.

Isopropyl ether

Acetone1

Ketones.

4-Methyl-2-pentanone (MIBK)

Ammonia (aqueous)

Miscellaneous.2

Acetonitrile

Methyl Cellosolve

Dimethyl Sulfoxide

1 These parameters may be used as a surrogate to represent other parameters in the same treatability class.

2 Surrogates have not been identified for the “Miscellaneous” treatability class.

TABLE 2—SURROGATE PARAMETERS FOR INDIRECT DISCHARGERS (UTILIZING STEAM STRIPPING TREATMENT TECHNOLOGY)

Regulated parameters

Treatability class

Benzene

Toluene 1

Xylenes

n-Heptane

High strippability.

Chloroform 1

Methylene chloride 1

Chlorobenzene

Ammonia (aqueous)

Diethyl amine

Triethyl amine

Acetone 1

4-methyl-2-pentanone

n-Amyl acetate

n-Butyl acetate

Ethyl acetate

Medium strippability.

Isopropyl acetate

Methyl formate

Isopropyl ether

Tetrahydrofuran 1

1,2-dichloroethane

o-Dichlorobenzene

1 These parameters may be used as a surrogate to represent other parameters in the same treatability class.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 439, App. A—Tables - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-pt-40-439-app-a/

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