Code of Federal Regulations (alpha)

CFR /  Title 40  /  Part 437  /  Sec. 437.31 Effluent limitations attainable by the application of the best

Except as provided in 40 CFR 125.30 through 125.32 or Sec. 437.30(b), any existing point source subject to this subpart must achieve the following effluent limitations representing the application of BPT:

BPT Limitations------------------------------------------------------------------------

Maximum

Regulated parameter Maximum monthly avg.

daily \1\ \1\------------------------------------------------------------------------

Conventional Parameters------------------------------------------------------------------------BOD5........................................ 163 53.0pH.......................................... (\2\) (\2\)TSS......................................... 216 61.3------------------------------------------------------------------------

Metal Parameters------------------------------------------------------------------------Copper...................................... 0.865 0.757Zinc........................................ 0.497 0.420------------------------------------------------------------------------

Organic Parameters------------------------------------------------------------------------Acetone..................................... 30.2 7.97Acetophenone................................ 0.114 0.05622-Butanone.................................. 4.81 1.85o-Cresol.................................... 1.92 0.561p-Cresol.................................... 0.698 0.205Phenol...................................... 3.65 1.08Pyridine.................................... 0.370 0.1822,4,6-Trichlorophenol....................... 0.155 0.106------------------------------------------------------------------------\1\ mg/L (ppm).\2\ Within the range 6 to 9. [65 FR 81300, Dec. 22, 2000, as amended at 68 FR 71023, Dec. 22, 2003]