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40 CFR § 440.24 - New Source performance standards (NSPS).

---
identifier: "/us/cfr/t40/s440.24"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 440.24 - New Source performance standards (NSPS)."
title_number: 40
title_name: "Protection of Environment"
section_number: "440.24"
section_name: "New Source performance standards (NSPS)."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "440"
part_name: "ORE MINING AND DRESSING 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), (c) and (e), 306, 307, and 501 of the Clean Water Act (The Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977 and the Water Quality Act of 1987), (the Act), 33 U.S.C. 1311, 1314(b), (c) and (e), 1316, 1317, and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4."
regulatory_source: "47 FR 54609, Dec. 3, 1982, unless otherwise noted."
cfr_part: "440"
---

# 440.24 New Source performance standards (NSPS).

Except as provided in subpart L of this part, any new source subject to this subpart must achieve the following NSPS representing the degree of effluent reduction attainable by the application of the best available demonstrated technology (BADT). The concentration of pollutants discharged in mine drainage from mines producting bauxite ores shall not exceed:

|  |  |  |
| --- | --- | --- |
|  | Milligrams per liter |  |
| Fe (total) | 1.0 | 0.5 |
| Al | 2.0 | 1.0 |
| pH | () | () |
| TSS | 30.0 | 20.0 |
| Within the range of 6.0 to 9.0. |  |  |