40 CFR § 428.42 - 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/s428.42"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 428.42 - 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: "428.42"
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: "428"
part_name: "RUBBER 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), 307(c), Federal Water Pollution Control Act, as amended; 33 U.S.C. 1251, 1311, 1314(b) and (c), 1316(b) and (c), 1317(c); 86 Stat. 816  Pub. L. 92-500."
regulatory_source: "39 FR 6662, Feb. 21, 1974, unless otherwise noted."
cfr_part: "428"
---


# 428.42 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):

|  |  |  |
| --- | --- | --- |
|  | Metric units (kg/kkg of product) |  |
| COD | 10.27 | 6.85 |
| BOD | 0.51 | .34 |
| TSS | 0.82 | .55 |
| Oil and grease | 0.21 | .14 |
| pH | () | () |
|  | English units (lb/1,000 lb of product) |  |
| COD | 10.27 | 6.85 |
| BOD | 0.51 | .34 |
| TSS | 0.82 | .55 |
| Oil and grease | 0.21 | .14 |
| pH | () | () |
| Within the range 6.0 to 9.0. |  |  |

[39 FR 6662, Feb. 21, 1974, as amended at 60 FR 33963, June 29, 1995]