40 CFR 420.25 - Pretreatment standards for existing sources (PSES).
Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart that introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and must achieve the following pretreatment standards for existing sources (PSES):
Subpart B - Pretreatment Standards for Existing Sources (PSES)
|Regulated parameter||Maximum daily 1||Maximum monthly avg. 1|
|Ammonia-N 2 3||0.0150||0.00501|
|Phenols (4AAP) 2||0.000100||0.0000501|
1 Pounds per thousand lb of product.
2 The pretreatment standards for these parameters apply only when sintering wastewater is co-treated with ironmaking wastewater.
3 The pretreatment standards for ammonia are not applicable to sources that discharge to a POTW with nitrification capability (defined at § 420.02(s)).