40 C.F.R. § 420.25

Current through September 30, 2024

Section 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):

(a) Sintering operations with wet air pollution control system. The following table presents PSES for sintering operations with wet air pollution control systems:

Subpart B-Pretreatment Standards for Existing Sources (PSES)

Regulated parameter	Maximum daily¹	Maximum monthly avg.¹
Ammonia-N^{2 3}	0.0150	0.00501
Cyanide²	0.00300	0.00150
Phenols (4AAP)²	0.000100	0.0000501
Lead	0.000451	0.000150
Zinc	0.000676	0.000225
2,3,7,8-TCDF	[LESS THAN]ML

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) ).

(b)Sintering operations with dry air pollution control system. There shall be no discharge of process wastewater pollutants to POTWs.

40 C.F.R. §420.25

67 FR 64265, Oct. 17, 2002