NR 110.03(26m)(26m) “Private interceptor main sewer” means a sewer serving two or more buildings and not part of the municipal sewer system. NR 110.03 NoteNote: This is the same definition as contained in s. SPS 381.01 (193). NR 110.03(27)(27) “Reviewable project” means any construction or installation project for which department approval is required, pursuant to s. 281.41, Stats., including any new sewerage system; and, any improvements, extensions, or alterations of existing sewerage systems which may effect the quality or quantity of effluent or the location of any outfall. NR 110.03 NoteNote: Section NR 210.03 (10) reads: “Sanitary sewer overflow” means a release of wastewater from a sewage collection system or an interceptor sewer directly into a water of the state or to the land surface. NR 110.03(27m)(27m) “Sanitary sewer overflow structure” means the physical structure, hydraulic mechanisms, and piping specifically constructed to convey a sanitary sewer overflow. NR 110.03 NoteNote: Section NR 205.03 (31r) reads: “Satellite sewage collection system” means a municipally owned or a privately owned sewage collection system that conveys wastewater to another satellite sewage collection system or to another sewerage system that provides wastewater treatment and discharges under a separate WPDES permit. NR 110.03(28)(28) “Sewage collection system” means the common sanitary sewers, interceptor sewers, and appurtenant equipment, such as lift stations, within a sewerage system which are primarily installed to receive wastewaters directly from facilities which convey wastewater from individual structures or from private property, and which include service connection “Y” fittings designed for connection with those facilities. The facilities which convey wastewater from individual structures, such as building sewers and private interceptor sewers, from private property to the public sanitary sewer, or its equivalent, are specifically excluded from the definition of “sewage collection system”; except that pumping units and pressurized lines for individual structures or groups of structures are included as part of a “sewage collection system” when such units are cost effective and are owned and maintained by the sewerage system owner. NR 110.03(29)(29) “Sewage treatment facility” means all the structures, pipes, and other equipment that constitute the various treatment processes and treatment units employed to reduce pollutants in sewage. NR 110.03 NoteNote: Section NR 210.03 (13) reads: “Sewage treatment facility overflow” means a release of wastewater from a location within a sewage treatment facility, other than permitted effluent outfall structures, directly to a water of the state or to the land surface. A sewage treatment facility overflow does not include blending, controlled diversions or discharges from permitted combined sewage treatment facility effluent outfall structures. NR 110.03(29h)(29h) “Sewage treatment facility overflow structure” means the physical structure, hydraulic mechanisms, and piping specifically constructed to convey a sewage treatment facility overflow. NR 110.03(29m)(29m) “Sewer extension” means installation of a sewer or interceptor sewer, or extension thereof, to provide additional conveyance capacity and service to development within the existing or proposed tributary area of the extension. Alterations or modifications of existing sewerage systems designed to replace inadequate existing structures or installed because of inadequate hydraulic sewer capacity and that do not extend sanitary sewer service to areas previously not served are not sewer extensions. NR 110.03(29t)(29t) “Sewer service area” means that area served or anticipated to be served by a sewage collection system. NR 110.03(30)(30) “Sewerage system” means all structures, conduits and pipes, by which sewage is collected, treated, and disposed of, except plumbing inside and in connection with buildings served, and service pipes, from building to street main. NR 110.03(31c)(31c) “Short-term sludge storage” means the storage of sludge for a period of no more than 24 hours. NR 110.03(31e)(31e) “Sludge storage” means the retention of sludge at a treatment plant or at an approved off-site facility. NR 110.03(32)(32) “Staging period” means the period of time during which reserve capacity will be provided in the sewerage system for future domestic, commercial, and industrial flows. NR 110.03(32g)(32g) “Treatment process” means a physical, biological or chemical action that is applied to wastewater to remove or reduce pollutants. A treatment process may consist of multiple individual treatment units. “Treatment process” includes screening, chemical treatment, sedimentation, biological treatment, filtration, disinfection, and sludge digestion. NR 110.03(32i)(32i) “Treatment unit” means individual structures or equipment within a sewage or wastewater treatment facility that are part of a treatment process. Typical treatment units are screens, clarifiers, aeration tanks, filters, digesters, and lagoons. NR 110.03(32m)(32m) “Water table observation well” means any groundwater monitoring well whose screen intersects the water, which is installed for the specific purpose of determining either the elevation of the water table or the physical, chemical, biological, or radiological properties of groundwater at the water table, or both. NR 110.03(34)(34) “WPDES permit” means the Wisconsin pollutant discharge elimination system permit issued by the department under ch. 283, Stats., for the discharge of pollutants. NR 110.03 HistoryHistory: Cr. Register, November, 1974, No. 227, eff. 12-1-74; r. and recr. Register, December, 1978, No. 276, eff. 1-1-79; cr. (20), Register, August, 1981, No. 308, eff. 9-1-81; renum. (3) to (20) to be (11), (12), (14) to (18), (21), (23), (25) to (32) and (34) and am. (29) and (34), cr. (4) to (10), (13), (19), (20), (22), (24) and (33), Register, February, 1983, No. 326, eff. 3-1-83; cr. (6m), (12m), (13e), (13t), (14e), (14t), (18m), (19m), (31e), (31t) and (32m), am. (19), Register, November, 1990, No. 419, eff. 12-1-90; corrections in (2), (27), and (34) were made under s. 13.93 (2m) (b) 7., Stats., Register, May, 2001, No. 545; corrections in (3), (4), (6), (22) and (33) made under s. 13.92 (4) (b) 6., Stats., Register February 2010 No. 650; CR 09-123: r. (3), (5), (20), (24) and (33), r. and recr. (4) and (6), am. (9) and (22), cr. (12g) Register July 2010 No. 655, eff. 8-1-10; CR 12-027: renum. (6m) to (6e), cr. (6m), (6s), r. and recr. (7), cr. (7e), (7m), (7s), r. (8), r. and recr. (9), r. (10), am. (17), cr. (26m), (27e), (27m), (27s), am. (28), r. and recr. (29), cr. (29d), (29h), (30p), renum. (31) to (29t), cr. (32g), (32r) Register July 2013 No. 691, eff. 8-1-13; renum. (14), (30p), (31t), (32r) to (13c), (29m), (31c), (32i) under s. 13.92 (4) (b) 1., Stats., Register July 2013 No. 691; correction in (15) (c) made under s. 13.92 (4) (b) 7., Stats., Register June 2020 No. 774. NR 110.04(1)(1) If the owner of a proposed reviewable project feels that compliance with the design requirements of this chapter is impracticable, the reasons therefor shall be fully communicated in writing to the department prior to the submission of final plans. This communication must set forth alternative requirements for which department approval is sought and all pertinent facts, data, reports and studies supporting the imposition of such alternative requirements. NR 110.04(2)(2) If the department determines that compliance with the design requirements of this chapter would be impracticable in specific cases, it may approve alternative requirements which, in its opinion, are in substantial compliance with the requirements of this chapter. NR 110.04 HistoryHistory: Cr. Register, November, 1974, No. 227, eff. 12-1-74.