NR 205.07(2)(dm)(dm) Unscheduled sludge removal. Any disposal of grit, screenings, scum, sludges or other solids generated as a result of wastewater treatment processes shall be prohibited unless such disposal is authorized by a WPDES permit or other department license or approval.
NR 205.07(2)(e)(e) Priority system for septage acceptance at a POTW. A POTW that accepts septage for treatment and disposal and is unable to accommodate all the requests for acceptance by licensed disposers shall use the following priority system for acceptance:
NR 205.07(2)(e)1.1. First priority. Wastes from existing or new holding and septic tanks within the POTW’s sewer service area and holding tanks within the POTW’s holding tank service area.
NR 205.07(2)(e)2.2. Second priority. Wastes from existing holding tanks for residential or commercial establishments outside the POTW’s sewer service area and holding tank service area but inside the POTW’s planning area where the holding tank was installed to replace an inadequate private sewerage system.
NR 205.07(2)(e)3.3. Third priority. Wastes from existing septic tanks and holding tanks that were installed not as a replacement to an inadequate sewer system for residential or commercial establishments outside the POTW’s sewer service and holding tank service areas but inside the POTW’s planning area.
NR 205.07(2)(e)4.4. Fourth priority. Wastes from new or existing septic and holding tanks for residential or commercial establishments outside the POTW’s planning area.
NR 205.07(2)(f)(f) Septage treatment requirements by a POTW. Except as provided in s. 281.49, Stats., a POTW shall accept, treat and dispose of all of the following septage:
NR 205.07(2)(f)1.1. Septage that is generated within its sewer service area.
NR 205.07(2)(f)2.2. Holding tank wastewater that is generated outside the POTW’s sewer service area but inside or equal to the POTW’s planning area where a contract has been developed for acceptance, treatment or disposal.
NR 205.07(3)(3)The following conditions may be included in a WPDES permit issued by the department to the owner or operator of a non-POTW.
NR 205.07(3)(a)(a) Removed substances. Solids, sludges, filter backwash or other pollutants removed from or resulting from treatment or control of wastewaters or intake waters shall be stored and disposed of in a manner to prevent any pollutant from the materials from entering the waters of the state. Land disposal or application of treatment plant solids and sludges shall be at a site or operation licensed by the department under chs. NR 500 to 538 or chs. NR 660 to 670 or in accordance with ch. NR 204 or 214.
NR 205.07(3)(b)(b) Spill reporting. The permittee shall notify the department in accordance with ch. NR 158, in the event that a spill or accidental release of any material or substance results in the discharge of pollutants to the waters of the state at a rate or concentration greater than the effluent limitations established in the permit, or the spill or accidental release of the material is unregulated in the permit, unless the spill or release of pollutants has been reported to the department under this section.
NR 205.07 NoteNote: Chapter NR 158 has been repealed.
NR 205.07(3)(c)(c) Planned changes. In accordance with ss. 283.31 (4) (b) and 283.59 (1), Stats., the permittee shall report to the department any facility expansion, production increase or process modifications which will result in new, different or increased discharges of pollutants. The report shall either be a new permit application or, if the new discharge will not violate the effluent limitations of the permit, a written notice of the new, different or increased discharge. The notice shall contain a description of the new activities, an estimate of the new, different or increased discharge of pollutants and a description of the effect of the new or increased discharge on existing waste treatment facilities. Following receipt of this report, the department may modify the permit to specify and limit any pollutants not previously regulated in the permit.
NR 205.07 NoteNote: The notification should be directed to the industrial wastewater section.
NR 205.07(3)(d)(d) Increased discharge of toxic pollutants.
NR 205.07(3)(d)1.1. ‘Routine or frequent increase.’ The permittee shall notify the department in writing as soon as it knows or has reason to believe that any activity has occurred or will occur which would result, on a routine or frequent basis, in the discharge of any toxic pollutant which is not limited in the permit, if that discharge exceeds the highest of the following levels.
NR 205.07(3)(d)1.a.a. One hundred micrograms per liter (100 ug/l);
NR 205.07(3)(d)1.b.b. Two hundred micrograms per liter (200 ug/l) for acrolein and acrylonitrile; five hundred micrograms per liter (500 ug/l) for 2,4-dinitrophenol and for 2-methyl-4, 6-dinitrophenol; and one milligram per liter (1 mg/l) for antimony;
NR 205.07(3)(d)1.c.c. Five times the maximum concentration value reported for that pollutant in the permit application; or
NR 205.07(3)(d)1.d.d. A notification level greater than the level in subd. 2. a., b. or c., which the department has included as a special condition of the permit.
NR 205.07(3)(d)2.2. ‘Nonroutine or infrequent increase.’ The permittee shall notify the department in writing as soon as it knows or has reason to believe that any activity has occurred or will occur which would result, on a nonroutine or infrequent basis, in any discharge of a toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following levels.
NR 205.07(3)(d)2.a.a. Five hundred micrograms per liter (500 ug/l);
NR 205.07(3)(d)2.b.b. One milligram per liter (1 mg/l) for antimony;
NR 205.07(3)(d)2.c.c. Ten times the maximum concentration value reported for that pollutant in the permit application; or
NR 205.07(3)(d)2.d.d. A notification level greater than the level in subd. 2. a., b. or c., which the department has included as a special condition to the permit.
NR 205.07(3)(e)(e) Duty to halt or reduce activity. Upon failure or impairment of treatment facility operation, the permittee shall, to the extent necessary to maintain compliance with its permit, curtail production or wastewater discharges or both until the treatment facility operations are restored or an alternative method of treatment is provided.
NR 205.07(5)(5)Upon written request to the department and subject to the department’s approval, a permittee may submit an electronic permit application or reapplication provided the permittee signs and submits an electronic permit application or reapplication agreement certifying that the information was gathered and prepared under his or her supervision and, based on inquiry of the people directly under his or her supervision, that to the best of his or her knowledge the information is true, accurate and complete. The party signing the agreement shall make a similar certification when submitting subsequent information by electronic media or electronic transmission. Electronic reporting shall be an alternative to written reports.
NR 205.07 NoteNote: An electronic permit application or reapplication agreement may be obtained from the bureau of watershed management, department of natural resources, P.O. Box 7921, Madison, Wisconsin 53707-7921.