1. Regulations
  2. title 40
  3. chapter I-i30
  4. part 424
  5. subpart A
  6. § 424.12

View all text of Subpart A [§ 424.10 - § 424.17]

§ 424.12 - 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, and subject to the provisions of paragraph (a) of this section, 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 (kg/Mwh) TSS0.3190.160 Chromium total.006.0032 Chromium VI.0006.0003 Manganese total.064.032 pH( 1)( 1) English units (lb/Mwh) TSS.703.352 Chromium total.014.007 Chromium VI.0014.0007 Manganese total.141.070 pH( 1)( 1)

1 Within the range 6.0 to 9.0.

[39 FR 6809, Feb. 22, 1974, as amended at 60 FR 33957, 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 6809, Feb. 22, 1974, unless otherwise noted.

CITE AS: 40 CFR 424.12