Section 420.26 - Pretreatment standards for new sources (PSNS)Except as provided in 40 CFR 403.7 , any new 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 new sources (PSNS), as applicable.
(a) Sintering operations with wet air pollution control system. (1) Any new source subject to the provisions of this section that commenced discharging after November 18, 1992 and before November 18, 2002 must continue to achieve the standards specified in § 420.26 of title 40 of the Code of Federal Regulations, revised as of July 1, 2001, for ten years beginning on the date the source commenced discharge or during the period of depreciation or amortization of the facility, whichever comes first, after which the source must also achieve the pretreatment standard for 2,3,7,8-TCDF specified in § 420.25 .(2) Except as provided in 40 CFR 403.7 , the following standards apply with respect to each new source that commences construction after November 18, 2002: The following table presents PSNS for sintering operations with wet air pollution control systems: Subpart B-Pretreatment Standards for New Sources (PSNS)
| Regulated parameter | Maximum daily1 | Maximum monthly avg.1 |
| Ammonia-N2 3 | 0.0150 | 0.00501 |
| Cyanide2 | 0.00100 | 0.000501 |
| 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 pound of product.
2 The pretreatment standards for these parameters apply only when sintering wastewater is co-treated with ironmaking wastewater.
3The 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.67 FR 64266, Oct. 17, 2002, as amended at 70 FR 73623, Dec. 13, 2005