40 CFR § 418.22 - 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/s418.22"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 418.22 - 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: "418.22"
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: "418"
part_name: "FERTILIZER 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. 1251"
regulatory_source: "39 FR 12836, April 8, 1974, unless otherwise noted."
cfr_part: "418"
---
# 418.22 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):
| | | |
| --- | --- | --- |
| | Metric units (kilograms per 1,000 kg of product) | |
| Ammonia (as N) | 0.1875 | 0.0625 |
| pH | () | () |
| | English units (pounds per 1,000 lb of product) | |
| Ammonia (as N) | 0.1875 | 0.0625 |
| pH | () | () |
| Within the range 6.0 to 9.0. | | |
[39 FR 12836, Apr. 8, 1974, as amended at 40 FR 26275, June 23, 1975: 60 FR 33956, June 29, 1995]