40 CFR § 419.17 - Pretreatment standards for new sources (PSNS).
---identifier: "/us/cfr/t40/s419.17"source: "ecfr"legal_status: "authoritative_unofficial"title: "40 CFR § 419.17 - Pretreatment standards for new sources (PSNS)."title_number: 40title_name: "Protection of Environment"section_number: "419.17"section_name: "Pretreatment standards for new sources (PSNS)."chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"subchapter_number: "N"subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"part_number: "419"part_name: "PETROLEUM REFINING POINT SOURCE CATEGORY"positive_law: falsecurrency: "2026-03-24"last_updated: "2026-03-24"format_version: "1.1.0"generator: "[email protected]"authority: "Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 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) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217."regulatory_source: "47 FR 46446, Oct. 18, 1982, unless otherwise noted."cfr_part: "419"---
Identifier
/us/cfr/t40/s419.17
Currency
2026-03-24
Positive Law
No
Updated
2026-03-24
Chapter
Environmental Protection Agency
Authority
Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972 as amended by the Clean Water Act of... Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 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) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.
# 419.17 Pretreatment standards for new sources (PSNS).Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS).(a) The following standards apply to the total refinery flow contribution to the POTW:| Pollutant or pollutant property | Pretreatment standards for new sources—maximum for any 1 day || --- | --- || | Milligrams per liter (mg/1) || Oil and grease | 100 || Ammonia (as N) | 100 || Where the discharge to the POTW consists solely of sour waters, the owner or operator has the option of complying with this limit or the daily maximum mass limitation for ammonia set forth in § 419.16 (a) and (b). | |(b) The following standard is applied to the cooling tower discharge part of the total refinery flow to the POTW by multiplying: (1) The standard; (2) by the total refinery flow to the POTW; and (3) by the ratio of the cooling tower discharge flow to the total refinery flow.| Pollutant or pollutant property | Pretreatment standards for new sources—maximum for any 1 day || --- | --- || | Milligrams per liter (mg/1) || Total chromium | 1 |