40 C.F.R. § 439 app A to Part 439

Current through September 30, 2024
Appendix A to Part 439 - Tables

Table 1-Surrogate Parameters for Direct Dischargers

[Utilizing biological treatment technology]

Regulated parameters Treatability class
Amyl alcoholAlcohols.
Ethanol1
Isopropanol1
Methanol1
Phenol
Isobutyraldehyde1Aldehydes.
n-Heptane1Alkanes.
n-Hexane1
Diethylamine1Amines.
Triethylamine
BenzeneAromatics.
Toluene1
Xylenes1
Chlorobenzene
o-Dichlorobenzene
Chloroform1Chlorinated Alkanes.
Methylene chloride1
1,2-Dichloroethane1
Ethyl acetate1Esters.
Isopropyl acetate
n-Amyl acetate
n-Butyl acetate
Methyl formate
Tetrahydrofuran1Ethers.
Isopropyl ether
Acetone1Ketones.
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
Toluene1
Xylenes
n-HeptaneHigh strippability.
Chloroform1
Methylene chloride1
Chlorobenzene
Ammonia (aqueous)
Diethyl amine
Triethyl amine
Acetone1
4-methyl-2-pentanone
n-Amyl acetate
n-Butyl acetate
Ethyl acetateMedium strippability.
Isopropyl acetate
Methyl formate
Isopropyl ether
Tetrahydrofuran1
1,2-dichloroethane
o-Dichlorobenzene

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

40 C.F.R. 439 app A to Part 439

63 FR 50437, Sept. 21, 1998; 64 FR 10393, Mar. 4, 1999, as amended at 68 FR 12275, Mar. 13, 2003