CCLME.ORG - 40 CFR PART 439—PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY

(continued) except for residual amounts of solvents remaining after the practices of recovery and/or separate disposal or reuse. Residual amounts of these substances may be included in the calculation of the average influent BOD5 or COD loading.

(2) The practices of recovery, and/or separate disposal or reuse include: recovery of solvents from wastestreams; and incineration of concentrated solvent wastestreams (including tar still bottoms). This regulation does not prohibit the inclusion of such wastes in raw waste loads in fact, nor does it mandate any specific practice, but rather describes the rationale for determining NPDES permit limitations. The effluent limitation for BOD5 or COD may be achieved by any of several, or a combination, of these practices.

(e) The pH must be within the range 6.0 to 9.0.

[63 FR 50436, Sept. 21, 1998, as amended at 68 FR 12274, Mar. 13, 2003]

Appendix A to Part 439—Tables
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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
------------------------------------------------------------------------
\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.

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