SPS 382.33(9)(k)2.2. The discharge from deck drains serving indoor pools shall be directed to the sanitary sewer via an air-gap. SPS 382.33(9)(k)3.3. The discharge from deck drains serving outdoor pools shall be directed to the storm sewer by way of an air-gap, air-break, or to grade. The distance from the top of the air-break to the pool deck shall be a minimum of 6 inches, terminating at a point above the top of the receptor receiving the deck drain discharge. SPS 382.33(9)(k)4.4. The requirements for sewer connections as specified in ch. SPS 390 applies to all public swimming pools. SPS 382.33(10)(a)(a) The waste discharge of a water treatment device to the drain system shall be protected in accordance with s. SPS 382.41 with respect to cross connection control. SPS 382.33(10)(b)(b) The indirect waste piping or tubing from a water treatment device shall be of a material conforming to one or more of the standards listed in Tables 384.30-8 or 384.30-11. SPS 382.33 NoteNote: For appliances, devices and equipment not included in this section or other sections contact the department for information and proposed installation review.
SPS 382.33 HistoryHistory: Cr. Register, February, 1985, No. 350, eff. 3-1-85; r. and recr. Table 82.33-1 and (9) (g) 5., cr. (8) (c) 3., (9) (g) 6. and (k), Register, May, 1988, No. 389, eff. 6-1-88; r. and recr., (3), am. (9) (c) 1. a., (d) 2. and (g) 4., Register, August, 1991, No. 428, eff. 9-1-91; am. (8) (d) 1., 2. and (9) (g) 3. b., r. (9) (k), cr. (10), Register, February, 1994, No. 458, eff. 3-1-94; correction in (9) (i) 5., made under s. 13.93 (2m) (b) 7., Stats., Register, February, 1994, No. 458; r. and recr. (9) (f), Register, April, 1998, No. 508, eff. 5-1-98; correction in (9) (i) 5. made under s. 13.93 (2m) (b) 7., Stats., Register, April, 1998, No. 508; r. and recr. (9) (i), cr. Table 82.33-3, Register, December, 2000, No. 540, eff. 1-1-01; CR 02-002: am. (5) (a) 2., (7) (b), (9) (c) 1. b., (e), (g) 6., renum. (8) (a) 1., (9) (a) 2. and (10) to be (8) (a), (9) (a) 2. a. and (10) (a) and am. (9) (a) 2. a., r. (8) (a) 2., r. and recr. (8) (c), (d), (9) (b), (d) 1. and (i), cr. (9) (a) 2. b., (c) 1. c., and (10) (b) Register April 2003 No. 568, eff. 5-1-03; CR 02-129: am. (9) (c) 1. b., r. (9) (d) 3. and table 82.33-3, cr. (9) (k) Register January 2004 No. 577, eff. 2-1-04; CR 08-055: r. and recr. (7) (a), cr. (8) (d) 6. and 7., am. (9) (c) 1. a., b. and (f) 1., r. (9) (c) 1. c. Register February 2009 No. 638, eff. 3-1-09; correction in (8) (d) (intro.) made under s. 13.92 (4) (b) 7., Stats., Register February 2009 No. 638; CR 10-064: am. Table 82.33-2 Register December 2010 No. 660, eff. 1-1-11; correction in (1) (b), (2), (3) (intro.), (5) (a) 1., 2., (b), (9) (c) 2. a., 3. c., (f) 1., (g) 1., (k) 1., 4., (10) (a), (b) made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; CR 23-006: r. and recr. Table 382.33-1, am. (6), (8) (d) (intro.), 2., 6., 7., cr. (8) (d) 8., 9., (9) (intro.), (bm), renum. (9) (c) 2. (intro.), a., b. to (9) (c) 2., 1. c., d., and am., am. (9) (c) 3. (intro.), c., Table 382.33-2 (title), (f) (title), cr. (9) (fm), am. (9) (g) (intro.), 1., (k) 3. Register September 2023 No. 813, eff. 10-1-23; correction in (8) (d) (intro.), 6., 8., 9. b., (9) (bm), (c) 2., (fm) made under s. 35.17, Stats., Register September 2023 No. 813. SPS 382.34SPS 382.34 Wastewater treatment and holding devices. SPS 382.34(1)(1) Scope. The provisions of this section set forth the requirements for design and installation of plumbing wastewater treatment and holding devices, appurtenances and systems, including but not limited to interceptors, catch basins, decontamination tanks and dilution and neutralizing basins. SPS 382.34(2)(2) Materials. All piping, devices and appliances for wastewater treatment and holding devices, appurtenances and systems shall be of approved materials in accordance with ch. SPS 384. SPS 382.34(3)(3) General. Any deleterious waste material which is discharged into a plumbing system shall be directed to a wastewater treatment or holding device. The wastewater treatment or holding device shall be capable of separating, diluting or neutralizing the deleterious waste material to a degree that the wastewater is no longer deleterious. Wastewater treatment or holding devices that retain any waste materials shall be designed and installed to facilitate periodic removal or treatment, or both. SPS 382.34(3)(a)1.1. Except as limited in subd. 2., graywater, storm water, clear water, blackwater and other wastewaters as approved by the department may be reused in conformance with s. SPS 382.70. SPS 382.34(3)(a)2.2. Except as provided in subd. 3., wastewater discharged from water closets or urinals shall not be reused for drinking water. SPS 382.34(3)(a)3.3. All treatment works permitted by the department of natural resources, or a POWTS which includes an in situ soil dispersal or treatment component may treat wastewater discharged from water closets or urinals for reuse. SPS 382.34(3)(b)(b) Deleterious waste materials. For the purpose of this subsection, deleterious waste materials include any waste material, other than that from dwelling units, which may: SPS 382.34(3)(b)1.1. Congeal, coagulate or accumulate in drains and sewers, thereby, creating stoppages or retarding the discharge flow; SPS 382.34(3)(b)3.3. Pass through a treatment process and pollute the watercourse receiving the treatment effluent; SPS 382.34(3)(b)4.4. Create explosive, flammable, noxious, toxic or other hazardous mixtures of materials; or SPS 382.34(3)(b)5.5. Damage, destroy or deteriorate sewers or piping materials or structures. SPS 382.34 NoteNote: See ch. ATCP 93 as to flammable, combustible, and hazardous liquids. SPS 382.34(3)(c)(c) Private systems. The special or industrial wastes from any plumbing system shall be treated, held or dispersed in compliance with the rules of the state agency having jurisdiction. The treatment, holding or dispersal system shall be installed so as not to endanger any water supply which is or may be used or which may create a nuisance, unsanitary conditions or water pollution. SPS 382.34(3)(d)(d) Velocity control. Interceptors, catch basins and other similar devices shall be designed, sized and installed so that flow rates shall be developed and maintained in a manner that solid and floating materials of a harmful, hazardous or deleterious nature will be collected in the interceptor for disposal. SPS 382.34(3)(e)(e) Maintenance. All devices installed for the purpose of intercepting, separating, collecting, holding or treating harmful, hazardous or deleterious materials in liquid or liquid-borne wastes shall be operated and cleaned of intercepted or collected materials or of any residual from treatment at such intervals which may be required to prevent their passage through the interceptor. Grease interceptors shall be maintained on a cycle not to exceed 90 days or per manufacturer’s instructions. SPS 382.34(3)(f)(f) Service reassembly. Any fixed orifice, vent or trap of an interceptor, catch basin or other similar device shall remain intact and shall not be removed or tampered with except for cleaning purposes. After service, all parts of the interceptor, collector or treatment device, such as baffles, weirs, orifice plates, channels, vents, traps, tops, and fastening bolts or screws shall be replaced in proper working position. SPS 382.34(3)(g)1.1. Wastewater holding devices, interceptors, catch basins and other similar devices shall be accessible for service, maintenance, repair and inspection. SPS 382.34(3)(g)1.a.a. No wastewater holding device, interceptor, catch basin or similar device may be surrounded or covered as to render it inaccessible for service or inspection. SPS 382.34(3)(g)1.b.b. No wastewater holding device, interceptor, catch basin or similar device may have its top located more than 6 feet above the surrounding floor. SPS 382.34(3)(g)1.c.c. Enough space shall be provided to enable the removal of any interior parts of the wastewater holding device, interceptor, catch basin or similar device. SPS 382.34(3)(g)1.d.d. At least 18 inches of clear space shall be provided above the top of the wastewater holding device, interceptor, catch basin or similar device. SPS 382.34(3)(g)2.2. An exterior wastewater holding device, interceptor, catch basin or similar device shall not be located within 5 feet of a building or any portion of a building or swimming pool; 10 feet of water service; 2 feet of a lot line and 10 feet of a clearwater cistern. SPS 382.34(3)(g)3.3. An exterior wastewater holding device, interceptor, catch basin, or similar device shall not be located within 10 feet of the high water mark of a lake, stream, pond or flowage. SPS 382.34(3)(g)4.4. An exterior subsurface treatment tank holding component, or reservoir to be installed in an area subject to saturated conditions, shall be installed to effectively prevent flotation of the tank or component. SPS 382.34 NoteNote: The department of natural resources under chs. NR 811 and 812 may require additional setbacks. See ch. SPS 382 Appendix for further explanatory material. SPS 382.34(3)(h)(h) Disposition of retained materials. Deleterious waste materials retained by a wastewater holding device, interceptor, catch basin or similar device shall not be introduced into any drain, sewer or natural body of water without approval of the state agency having jurisdiction. SPS 382.34(4)(a)1.1. Where a drain will be installed to receive the wastewater from floor areas of public buildings and facilities on which self-propelled land, air or water vehicles can be driven, the wastewater shall discharge using one of the following methods: SPS 382.34(4)(a)1.a.a. In areas where vehicles will be serviced, the wastewater shall discharge through a garage catch basin or oil interceptor connected to a municipal sewer or holding tank approved to receive industrial wastewater. SPS 382.34(4)(a)1.b.b. In areas where vehicles will be driven or stored, the wastewater shall discharge through a floor drain equipped with a solid bottom sediment bucket, garage catch basin or oil interceptor. SPS 382.34(4)(a)2.c.c. The minimum depth of the basin shall be 24” measured from the lowest portion of the trap on the outlet of the basin. SPS 382.34(4)(a)2.d.d. The outlet of the basin shall be at least 4” in diameter and trapped with a water seal of at least 6” and constructed on the interior or exterior of the basin. Where an external trap is provided, the trap shall be within 36” of the basin. SPS 382.34(4)(a)2.e.e. Except as provided in subd. 5., the water line in the basin shall be at least 2” below all horizontal drains discharging into the basin. Where an external trap is provided, the measurement point on the horizontal drain shall be upstream of the trap. SPS 382.34(4)(a)2.f.f. The basin shall be provided with a cover at least 23 inches square or 23 inches in diameter. SPS 382.34(4)(a)2.g.g. Gravity drains from fixtures serving garage floor areas located on different floors from the basin may discharge into the basin if the drain stack carrying the wastewater is located at a distance equal to at least 20 times the inside diameter of the horizontal piping upstream of the basin. SPS 382.34(4)(a)3.3. Drains with traps may connect to the garage catch basin under all of the following conditions: SPS 382.34(4)(a)3.b.b. Except as provided in subd. 3. c., the developed length from all trap outlets to the basin shall not exceed the distance as specified in Table 382.31-1. SPS 382.34(4)(a)3.c.c. Where the maximum distance exceeds that as specified in Table 382.31-1, the trap shall be vented in accordance with s. SPS 382.31 (3) and the connection to the basin shall form a 6-inch trap seal. The trap seal may be constructed on either the interior or exterior of the basin, but within 36” of the basin. SPS 382.34(4)(a)4.4. Drains without traps may discharge into a garage catch basin under all of the following conditions: SPS 382.34(4)(a)4.b.b. The fixture drain shall be piped with a 6-inch water seal constructed either on the interior or exterior of the basin. SPS 382.34(4)(a)4.d.d. The developed length of the fixture drain shall not exceed the distance equal to 24 times the diameter of the fixture drain. SPS 382.34(4)(a)5.5. Pressurized drains from garage floor areas discharging to a garage catch basin shall conform to all of the following conditions: SPS 382.34(4)(a)5.a.a. The pressurized drain piping shall terminate inside the basin with a 6-inch submerged inlet. The termination shall be at least 12” above the floor of the basin. SPS 382.34(4)(a)5.b.b. The pressurized equipment, devices and piping shall be designed and installed to produce a maximum velocity of 2 feet per second at the point of connection to the basin. SPS 382.34 NoteNote: Plans for garage floor discharge-holding tanks may require plan approval by the department of natural resources.
SPS 382.34(4)(b)1.1. Floor drains serving garages for one- and 2-family dwellings shall be provided with a removable solid bottom sediment basket. SPS 382.34(4)(b)2.a.a. Except as permitted in subd. 2. b., catch basins serving garages for one- and 2-family dwellings shall be designed and installed in accordance with par. (a) 2. SPS 382.34(4)(b)2.b.b. The minimum inside diameter of catch basins serving garages for one- and 2-family dwellings shall be 18 inches. SPS 382.34(4)(c)(c) Grates for garage catch basins, floor drains and trenches. A garage catch basin, floor drain, and trench drain shall be provided with an approved, removable grate of sufficient strength for the anticipated loads. The grate shall have an available inlet area equal to at least the outlet drain for the catch basin, floor drain or trench drain. SPS 382.34(5)(a)(a) All plumbing installations for occupancies, other than dwelling units, where grease, fats, oils or similar waste products of cooking or food are introduced into the drain system shall be provided with grease and oil treatment in accordance with this subsection. SPS 382.34(5)(b)1.1. ‘Public sewers.’ All new, altered or remodeled plumbing systems which discharge to public sewers shall be provided with one or more grease interceptors. SPS 382.34(5)(b)1.a.a. Where one or more exterior grease interceptors are provided all, and only, kitchen wastes shall be discharged to an exterior interceptor. SPS 382.34(5)(b)1.b.b. Except as required in subd. 1. c. or d., where one or more interior grease interceptors are provided the wastes from a food waste grinder, a sanitizing compartment of a sink or a rinse compartment of a sink, may bypass the interceptor or interceptors. SPS 382.34(5)(b)1.c.c. The wash compartment of a scullery sink shall discharge through a grease interceptor. SPS 382.34(5)(b)1.d.d. The pre-wash compartment not discharging through a garbage disposal shall discharge through a grease interceptor. SPS 382.34(5)(b)2.2. ‘Private onsite wastewater treatment systems.’ All new, altered, or remodeled plumbing systems which discharge to private onsite wastewater treatment systems shall be provided with grease interceptors of sufficient capacity to ensure compliance with s. SPS 383.44 (2). SPS 382.34(5)(b)2.a.a. Except as provided in subd. 2. b., only kitchen and food wastes shall be discharged to an exterior grease interceptor. SPS 382.34(5)(b)2.b.b. For remodeling, when it is not practicable to separate kitchen and toilet wastes, combined kitchen wastes and toilet wastes may be discharged directly to a private onsite wastewater treatment component tank or tanks which conform to par. (c). The required capacity of a grease interceptor shall be added to the required septic tank capacity as specified in ch. SPS 383. SPS 382.34(5)(b)2.c.c. For holding tank installations, the combined kitchen and toilet wastes may discharge directly to a holding tank where the location accepting the pumpage from the tank provides written acceptance of the combined waste to the department. SPS 382.34(5)(b)3.3. ‘Existing installations.’ The department or authority having jurisdiction may require the installation of any treatment device deemed necessary by the department or authority having jurisdiction for existing plumbing installations where the waterway of a drain system, sewer system, or private onsite wastewater treatment system is reduced or filled due to grease. SPS 382.34(5)(c)(c) Exterior grease interceptors. Exterior grease interceptors shall receive the entire greasy waste discharge from kitchens or food processing areas. All exterior interceptors shall be designed and constructed in accordance with this paragraph, so as to constitute an individual structure.
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Chs. SPS 301-399 ; Safety, Buildings, and Environment
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