Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

  1. Law
  2. CFR 40
  3. Protection of Environment
  4. Environmental Protection Agency
  5. Effluent Guidelines and Standards
  6. Leather Tanning and Finishing Point Source Category
  7. Hair Save or Pulp, Non-Chrome Tan, Retan-Wet Finish Subcategory
  8. Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

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§ 425.31 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):

Pollutant or pollutant property BPT limitations
Maximum for any 1 day Maximum for monthly average
Kg/kkg (or pounds per 1,000 pounds) of raw material
BOD5 6.7 3.0
TSS 9.7 4.4
Oil & Grease 2.8 1.3
Total Chromium 0.17 0.06
pH (1) (1)

1 Within the range of 6.0 to 9.0

[47 FR 52870, Nov. 23, 1982, as amended at 53 FR 9182, Mar. 21, 1988]


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