Section NR 106.61 - General permit(1) A general permit issued by the department that contains effluent temperature limitations and monitoring requirements for discharges of non-contact cooling water, non-contact condensate, boiler water blowdown, and boiler bleedoff directly to surface water, to a storm sewer, or for discharges to the land surface, or to groundwater shall include all of the following conditions: (a) Procedures to determine effluent temperature limitations for individual discharges covered by the general permit in accordance with the provisions of this subchapter. For each facility covered by the general permit, the department shall establish effluent temperature limitations for the facility directly in the general permit or in the general permit discharge authorization letter to the permittee.(b) Discharges to wetlands shall be allowed if, when granting coverage, the department determines that the requirements of ch. NR 103 are met.(c) Discharges shall not be allowed if the receiving waterbody is an outstanding resource water or an exceptional resource water, as specified in ss. NR 102.10 and 102.11, respectively.(d) Discharges to the land surface, to the groundwater or to storm water ponds shall have a daily maximum effluent temperature limitation of 120°F, provided that the discharge does not have a reasonable potential to exceed temperature water quality standards in waters of the state downstream of the discharge location.(e) Discharges shall not contain wastewater from industrial or commercial processes, other than those authorized in sub. (1).(f) Discharge does not contain a water treatment additive including biocides. However, the department may approve in writing the use of water treatment additives that are not biocides.(g) Discharge does not cause a safety hazard due to unsafe ice conditions in winter.(h) The permittee shall be required to collect representative daily maximum effluent temperatures not less than once per month. Unless specified otherwise by the department when coverage is granted under the general permit, the permittee shall not be required to submit effluent temperature data collected under the monitoring provisions of the general permit issued under this section. Any effluent temperature data collected shall be retained by the permittee for the duration of the permit or 3 years after this information is collected, whichever is longer and shall be provided to the department upon request.(2) A general permit issued under this section may include any of the following conditions: (a) Coverage under the general permit for discharges containing water treatment additives, except for biocides, provided all other requirements of this chapter are met.(b) Provisions that account for the heat loss that occurs in a discharge to a storm sewer or other storm water conveyance channel assuming the heat loss occurs at a rate of 0.25 degree F per 100 feet of storm sewer or channel length. The effluent temperature limitations determined under this paragraph shall be established when the department grants coverage under this general permit.(c) Provisions to allow the department to establish more stringent effluent temperature limitations as necessary to attain or maintain water quality standards in downstream or other adjacent waters. The effluent temperature limitations determined under this paragraph shall be established when the department grants coverage under the general permit.(3) A permittee granted coverage under the general permit authorized under this section shall be required to verify conformance with the conditions in sub. (1) whenever the permit coverage is renewed.Wis. Admin. Code Department of Natural Resources NR 106.61
CR 07-111: cr. Register September 2010 No. 657, eff. 10-1-10.