Appendix A - Appendix A to Part 439—Tables
Table 1—Surrogate Parameters for Direct Dischargers
[Utilizing biological treatment technology]
| Regulated parameters | Treatability class | Amyl alcohol | Alcohols. | Ethanol 1 | Isopropanol 1 | Methanol 1 | Phenol | Isobutyraldehyde 1 | Aldehydes. | n-Heptane 1 | Alkanes. | n-Hexane 1 | Diethylamine 1 | Amines. | Triethylamine | Benzene | Aromatics. | Toluene 1 | Xylenes 1 | Chlorobenzene | o-Dichlorobenzene | Chloroform 1 | Chlorinated Alkanes. | Methylene chloride 1 | 1,2-Dichloroethane 1 | Ethyl acetate 1 | Esters. | Isopropyl acetate | n-Amyl acetate | n-Butyl acetate | Methyl formate | Tetrahydrofuran 1 | Ethers. | Isopropyl ether | Acetone 1 | Ketones. | 4-Methyl-2-pentanone (MIBK) | Ammonia (aqueous) | Miscellaneous. 2 | Acetonitrile | Methyl Cellosolve | Dimethyl Sulfoxide |
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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 |
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1 These parameters may be used as a surrogate to represent other parameters in the same treatability class.