Except as provided in 40 CFR 125.30 through 125.32 or Sec. 437.20(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------------------------------------------------------------------------O&G.........................................; 127 38.0pH.......................................... (\2\) (\2\)TSS......................................... 74.1 30.6------------------------------------------------------------------------
Metal Parameters------------------------------------------------------------------------Arsenic..................................... 2.95 1.33Cadmium..................................... 0.0172 0.0102Chromium.................................... 0.746 0.323Cobalt...................................... 56.4 18.8Copper...................................... 0.500 0.242Lead........................................ 0.350 0.160Mercury..................................... 0.0172 0.00647Tin......................................... 0.335 0.165Zinc........................................ 8.26 4.50------------------------------------------------------------------------
Organic Parameters------------------------------------------------------------------------Bis(2-ethylhexyl) phthalate................. 0.215 0.101Butylbenzyl phthalate....................... 0.188 0.0887Carbazole................................... 0.598 0.276n-Decane.................................... 0.948 0.437Fluoranthene................................ 0.0537 0.0268n-Octadecane................................ 0.589 0.302------------------------------------------------------------------------\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]