40 CFR § 415.225 - New source performance standards (NSPS).
---identifier: "/us/cfr/t40/s415.225"source: "ecfr"legal_status: "authoritative_unofficial"title: "40 CFR § 415.225 - New source performance standards (NSPS)."title_number: 40title_name: "Protection of Environment"section_number: "415.225"section_name: "New source performance standards (NSPS)."chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"subchapter_number: "N"subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"part_number: "415"part_name: "INORGANIC CHEMICALS MANUFACTURING 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 28278, June 29, 1982, unless otherwise noted."cfr_part: "415"---
Identifier
/us/cfr/t40/s415.225
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 o... 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.
# 415.225 New source performance standards (NSPS).(a) Any new source subject to this subpart producing titanium dioxide by the sulfate process must achieve the following new source performance standards (NSPS):Subpart V—Titanium Dioxide-Sulfate Process| | | || --- | --- | --- || | Kg/kkg (or pounds per 1,000 lb) of product | || TSS | 110 | 30 || Iron (T) | 4.1 | 1.2 || Chromium (T) | 0.27 | 0.14 || Nickel (T) | 0.18 | 0.095 || pH | () | () || Within the range 6.0 to 9.0. | | |(b) Any new source subject to this subpart producing titanium dioxide by the chloride process must achieve the following new source performance standards (NSPS):Subpart V—Titanium Dioxide-Chloride Process| | | || --- | --- | --- || | Kg/kkg (or pounds per 1,000 lb) of product | || TSS | 14 | 4.0 || Iron (T) | 0.52 | 0.16 || Chromium (T) | 0.023 | 0.012 || ph | () | () || Within the range 6.0 to 9.0. | | |(c) Any new source subject to this subpart producing titanium dioxide by the simultaneous beneficiation-chlorination (chloride-ilmenite) process must achieve the following new source performance standards (NSPS):Subpart V—Titanium Dioxide-Chloride-Ilmenite Process| | | || --- | --- | --- || | Kg/kkg (or pounds per 1,000 lb) of product | || TSS | 8.4 | 2.4 || Iron (T) | 0.32 | 0.096 || Chromium (T) | 0.014 | 0.0072 || Nickel (T) | 0.020 | 0.010 || pH | () | () || Within the range 6.0 to 9.0. | | |