NR 211.34(1)(1) In the event that federal regulations establishing pretreatment standards or requirements are promulgated for any point source to which the provisions of this chapter apply, the department may implement and enforce these pretreatment standards and requirements based upon the federal regulations after publishing a notice of its intent to do so in the Wisconsin administrative register.

NR 211.34(2)(2) The department shall, as soon as possible after the promulgation of any federal regulation establishing pretreatment standards or requirements as described in sub. (1), adopt appropriate pretreatment standards or requirements for point sources subject to this chapter in the Wisconsin administrative code.

NR 211.40NR 211.40 POTW authority to regulate chloride discharges from all sources. Notwithstanding all other provisions of this chapter, a POTW may develop and enforce specific standards or requirements, including but not limited to source reduction activities enumerated in s. NR 106.90, to regulate the discharge of chloride from industrial, residential and commercial sources. The POTW’s authority includes the authority to regulate all industrial, commercial and domestic wastewater containing chloride.

NR 211.41NR 211.41 POTW action to reduce mercury discharges from all sources. Notwithstanding all other provisions of this chapter, a POTW shall develop and enforce any specific standards or requirements and implement any source reduction activities that are necessary to assure compliance with requirements established in s. NR 106.145. These standards, requirements and source reduction activities apply to mercury discharges to the POTW from all relevant sources, including but not limited to industrial, commercial and residential sources.