40 C.F.R. § 437.25

Current through September 30, 2024
Section 437.25 - Pretreatment standards for existing sources (PSES)

Except as provided in 40 CFR 403.7 , 403.13 or § 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)

Regulated
parameter
Maximum daily1 Maximum monthly avg.1
Metal Parameters
Chromium0.9470.487
Cobalt56.418.8
Copper0.4050.301
Lead0.2220.172
Tin0.2490.146
Zinc6.954.46
Organic Parameters
Bis(2-ethylhexyl) phthalate0.2670.158
Carbazole0.3920.233
n-Decane5.793.31
Fluoranthene0.7870.393
n-Octadecane1.220.925

1 mg/L (ppm).

40 C.F.R. §437.25

65 FR 81300, Dec. 22, 2000, as amended at 68 FR 71023, Dec. 22, 2003