1. Regulations
  2. title 40
  3. chapter I-i30
  4. part 406
  5. subpart D
  6. § 406.42

View all text of Subpart D [§ 406.40 - § 406.47]

§ 406.42 - 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):

Effluent characteristic Effluent limitations Maximum for any 1 day Average of daily values for 30 consecutive days shall not exceed— Metric units (kilograms per 1,000 kg of wheat) BOD50.0250.0083 TSS0.025.0083 pH( 1)( 1) English units (pounds per 1,000 stdbu of wheat) BOD51.500.50 TSS1.50.50 pH( 1)( 1)

1 Within the range 6.0 to 9.0.

[39 FR 10513, Mar. 20, 1974, as amended at 60 FR 33936, June 29, 1995]

AUTHORITY: Secs. 301, 304 (b) and (c), 306 (b) and (c), 307(c) of the Federal Water Pollution Control Act, as amended; 33 U.S.C. 1251, 1311, 1314 (b) and (c), 1316 (b) and (c), 1317(c); 86 Stat. 816

SOURCE: 39 FR 10513, Mar. 20, 1974, unless otherwise noted.

CITE AS: 40 CFR 406.42