Regulations last checked for updates: Nov 22, 2024

Title 40 - Protection of Environment last revised: Nov 20, 2024
§ 429.151 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

Subpart N

Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
kg/kkg (lb/1000 lb) of gross production
BOD58.134.32
TSS5.692.72
pH( 1)

1 Within the range 6.0 to 9.0 at all times.

authority: Secs. 301, 304(b), (c), (e), and (g), 306(b) and (c), 307(a)(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,c,e,and, 1316(b) andc, 1317(b) andc,and; 86 Stat. 815, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217
source: 46 FR 8285, Jan. 26, 1981, unless otherwise noted.
cite as: 40 CFR 429.151