40 CFR § 417.22 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

---
identifier: "/us/cfr/t40/s417.22"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 417.22 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available."
title_number: 40
title_name: "Protection of Environment"
section_number: "417.22"
section_name: "Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "417"
part_name: "SOAP AND DETERGENT 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: "Secs. 301, 304 (b) and (c), 306 (b) and (c), and 307(c) of the Federal Water Pollution Control Act as amended, (the Act); 33 U.S.C. 1251, 1311, 1314 (b) and (c), 1316 (b) and (c) and 1317(c), 86 Stat. 816  Pub. L. 92-500."
regulatory_source: "39 FR 13372, Apr. 12, 1974, unless otherwise noted."
cfr_part: "417"
---


# 417.22 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

Except as provided in §§ 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) The following limitations establish the quantity or quality of pollutants or pollutant properties, controlled by this section, which may be discharged by a point source subject to the provisions of this subpart after application of the best practicable control technology currently available:

|  |  |  |
| --- | --- | --- |
|  | Metric units (kilograms per 1,000 kg of anhydrous product) |  |
| BOD | 3.60 | 1.20 |
| COD | 9.90 | 3.30 |
| TSS | 6.60 | 2.20 |
| Oil and grease | 0.90 | .30 |
| pH | () | () |
|  | English units (pounds per 1,000 lb of anhydrous product) |  |
| BOD | 3.60 | 1.20 |
| COD | 9.90 | 3.30 |
| TSS | 6.60 | 2.20 |
| Oil and grease | 0.90 | .30 |
| pH | () | () |
| Within the range 6.0 to 9.0. |  |  |

(b) The following limitations establish the quantity or quality of pollutants or pollutant properties, controlled by this section and attributable to the hydrogenation of fatty acids, which may be discharged by a point source subject to the provisions of this subpart in addition to the discharge allowed by paragraph (a) of this section.

|  |  |  |
| --- | --- | --- |
|  | Metric units (kilograms per 1,000 kg of anhydrous product) |  |
| BOD | 0.45 | 0.15 |
| COD | 0.75 | .25 |
| TSS | 0.30 | .10 |
| Oil and grease | 0.30 | .10 |
| pH | () | () |
|  | English units (pounds per 1,000 lb of anhydrous product) |  |
| BOD | 0.45 | 0.15 |
| COD | 0.75 | .25 |
| TSS | 0.30 | .10 |
| Oil and grease | 0.30 | .10 |
| pH | () | () |
| Within the range 6.0 to 9.0. |  |  |

[39 FR 13372, Apr. 12, 1974, as amended at 60 FR 33952, June 29, 1995]