40 CFR § 439.14 - Effluent limitations attainable by the application of best available technology economically achievable (BAT).
---
identifier: "/us/cfr/t40/s439.14"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 439.14 - Effluent limitations attainable by the application of best available technology economically achievable (BAT)."
title_number: 40
title_name: "Protection of Environment"
section_number: "439.14"
section_name: "Effluent limitations attainable by the application of best available technology economically achievable (BAT)."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "439"
part_name: "PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1311, 1314, 1316, 1317, 1318, 1342 and 1361."
regulatory_source: "48 FR 49821, Oct. 27, 1983, unless otherwise noted."
cfr_part: "439"
---
# 439.14 Effluent limitations attainable by the application of best available technology economically achievable (BAT).
(a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the application of BAT:
Effluent Limitations (BAT)
| Regulated parameter | Maximum daily | Maximum monthly average |
| --- | --- | --- |
| Ammonia (as N) | 84.1 | 29.4 |
| Acetone | 0.5 | 0.2 |
| 4-methyl-2-pentanone | 0.5 | 0.2 |
| Isobutyraldehyde | 1.2 | 0.5 |
| n-Amyl acetate | 1.3 | 0.5 |
| n-Butyl acetate | 1.3 | 0.5 |
| Ethyl acetate | 1.3 | 0.5 |
| Isopropyl acetate | 1.3 | 0.5 |
| Methyl formate | 1.3 | 0.5 |
| Amyl alcohol | 10.0 | 4.1 |
| Ethanol | 10.0 | 4.1 |
| Isopropanol | 3.9 | 1.6 |
| Methanol | 10.0 | 4.1 |
| Methyl Cellosolve | 100.0 | 40.6 |
| Dimethyl sulfoxide | 91.5 | 37.5 |
| Triethyl amine | 250.0 | 102.0 |
| Phenol | 0.05 | 0.02 |
| Benzene | 0.05 | 0.02 |
| Toluene | 0.06 | 0.02 |
| Xylenes | 0.03 | 0.01 |
| n-Hexane | 0.03 | 0.02 |
| n-Heptane | 0.05 | 0.02 |
| Methylene chloride | 0.9 | 0.3 |
| Chloroform | 0.02 | 0.13 |
| 1,2-dichloroethane | 0.4 | 0.1 |
| Chlorobenzene | 0.15 | 0.06 |
| o-Dichlorobenzene | 0.15 | 0.06 |
| Tetrahydrofuran | 8.4 | 2.6 |
| Isopropyl ether | 8.4 | 2.6 |
| Diethyl amine | 250.0 | 102.0 |
| Acetonitrile | 25.0 | 10.2 |
| mg/L (ppm). | | |
(b) The limitations for COD are the same as specified in § 439.12(c) and (d).
(c) The limitations for cyanide are the same as specified in § 439.12(e), (f) and (g).
[68 FR 12271, Mar. 13, 2003]