40 CFR § 424.42
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
June 9, 2020
CFR

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):

Open Table
Effluent characteristic Effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days shall not exceed—
Metric units (kg/kkg of product)
TSS 0.380 0.190
Total Cyanide .0056 .0028
pH (1) (1)
English units (lb/1000 lb of product)
TSS .380 .190
Total Cyanide .0056 .0028
pH (1) (1)

1Within the range 6.0 to 9.0.

[40 FR 8035, Feb. 24, 1975, as amended at 60 FR 33957, June 29, 1995]


Tried the LawStack mobile app?

Join thousands and try LawStack mobile for FREE today.

  • Carry the law offline, wherever you go.
  • Download CFR, USC, rules, and state law to your mobile device.