Code of Federal Regulations (alpha)

CFR /  Title 40  /  Part 437  /  Sec. 437.25 Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7, 403.13 or Sec. 437.20(b), and no later than December 22, 2003, any existing source subject to this subpart must achieve the following pretreatment standards:

Pretreatment Standards (PSES)------------------------------------------------------------------------

Maximum

Regulated parameter Maximum monthly avg.

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

Metal Parameters------------------------------------------------------------------------Chromium.................................... 0.947 0.487Cobalt...................................... 56.4 18.8Copper...................................... 0.405 0.301Lead........................................ 0.222 0.172Tin......................................... 0.249 0.146Zinc........................................ 6.95 4.46------------------------------------------------------------------------

Organic Parameters------------------------------------------------------------------------Bis(2-ethylhexyl) phthalate................. 0.267 0.158Carbazole................................... 0.392 0.233n-Decane.................................... 5.79 3.31Fluoranthene................................ 0.787 0.393n-Octadecane................................ 1.22 0.925 ------------------------------------------------------------------------\1\ mg/L (ppm). [65 FR 81300, Dec. 22, 2000, as amended at 68 FR 71023, Dec. 22, 2003]