NR 106.90(4)(d)2.2. For plants that make brine salted cheeses, evaluate the feasibility of using a no-brine make procedure in which salt is added directly to curd during the manufacturing procedure, thereby reducing salt discharges from spent brines.

NR 106.90(4)(g)(g) For any other facility not listed in pars. (a) to (f), evaluate the feasibility of replacing or upgrading equipment and processes, and the use of alternative softening technologies to affect chloride reductions.

NR 106.90(5)(5) Source reduction reporting. Following the completion of tier 1, 2 or 3 source reduction activities specified in the permit, but no later than 6 months prior to permit expiration, the permittee shall file a written report to the department documenting the current reduction as well as the anticipated future reduction in salt usage and chloride effluent concentrations.

NR 106.91NR 106.91 Variances for POTWs which accept wastewater from public water systems treating water to meet primary safe drinking water act standards. Publicly owned treatment works that accept wastewater from a public water system treating water to meet the primary maximum contaminant levels specified in ch. NR 809, if not able to meet the calculated limitation, may apply to the department for a variance from the water quality standard used to derive the limitation following the procedure specified in this subchapter. The department shall seek U.S. environmental protection agency approval before a variance is included in a permit. Upon approval, the permittee may be given an interim limitation, a target value, a target limitation and appropriate source reduction requirements, under s. NR 106.83 in the permit upon permit reissuance or modification. No calculated limitation, interim limitation, target value, target limitation, or source reduction requirement shall interfere with the attainment of the primary maximum contaminant levels specified in ch. NR 809.

NR 106.92NR 106.92 Authority of a publicly owned treatment works to regulate chloride discharges. A publicly owned treatment works has the authority to regulate the discharge of chloride as enumerated in s. NR 211.40.

NR 106.93NR 106.93 New discharges. Any point source which has not been authorized under a WPDES permit prior to February 1, 2000, shall be required to meet the calculated limitations. Relocation of an existing discharge which was issued a WPDES permit prior to February 1, 2000, may not be considered a new discharge.

NR 106.94NR 106.94 Relocation of an existing discharge. An existing discharge which was issued a WPDES permit prior to February 1, 2000, and which is relocated after February 1, 2000, may be subject to voluntary source reduction activities and both an interim limitation and a target value or an interim limitation and a target limitation pursuant to s. NR 106.83 if the provisions of ch. NR 207 are met. Relocation includes the diversion of a discharge from a land treatment system to a surface water.