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SPS 383.32(3)(a)(a) Industrial wastes and wastewater may not, unless approved by the department of natural resources, be introduced into a POWTS.
SPS 383.32 Note Note: The department of natural resources regulates the discharge of industrial wastes to land treatment systems under ch. NR 214. Section NR 214.02 reads in part:
SPS 383.32 Note “This chapter applies to those discharges of industrial wastes to land treatment systems not regulated under ch. NR 518. This includes but is not limited to liquid wastes, by-product solids and sludges generated by: fruit and vegetable processing, dairy products processing, meat, fish and poultry products processing, mink raising operations, aquaculture, commercial laundromat and motor vehicle cleaning operations and any other industrial, commercial or agricultural operation which results in a point source discharge that has no detrimental effects on the soils, vegetation or groundwater of a land treatment system."
SPS 383.32(3)(b) (b) A POWTS may accept wastewater permitted under s. SPS 382.38 (3) (a) and Table 382.38–1.
SPS 383.32(3)(c) (c) Except as provided in ss. NR 116.12 (1) (e) and 116.15 (2) (b), no part of a POWTS may be installed in a floodway.
SPS 383.32 Note Note: See s. SPS 383.45 (6) for installations in a floodfringe.
SPS 383.32 History History: Cr. Register, April, 2000, No. 532, eff. 7-1-00; CR 02-129: am. (1) (e) and (f), (3) (a) and (b) Register January 2004 No. 577, eff. 2-1-04; CR 07-100: renum. (1) (h) to be (1) (h) (intro.) and am., cr. (1) (h) 1. and 2., am. (3) (c) Register September 2008 No. 633, eff. 10-1-08; correction in (1) (h) 1. made under s. 13.92 (4) (b) 6., Stats., Register September 2008 No. 633; correction in (1) (h) 1. made under s. 13.92 (4) (b) 7., Stats., Register December 2010 No. 660; correction in (1) (a), (c), (2) (b), (3) (b) made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; CR 11-031: am. (1) (h), (3) (b) Register June 2013 No. 690, eff. 7-1-13; correction in (1) (h) 1. made under s. 13.92 (4) (b) 7., Stats., Register February 2017 No. 734; EmR1707: emerg. cr. (1) (i), eff. 2-6-17; CR 17-017: cr. (1) (i) Register March 2018 No. 747, eff. 4-1-18.
SPS 383.33 SPS 383.33 Abandonment. A subsurface tank or pit that is no longer used as a POWTS component shall be abandoned by complying with all of the following:
SPS 383.33(1) (1) Disconnecting all piping to the tanks and pits.
SPS 383.33(2) (2) Sealing all disconnected piping to the tanks and pits.
SPS 383.33(3) (3) Pumping and disposing of the contents from all tanks and pits.
SPS 383.33 Note Note: The removal and disposal of the contents from treatment tanks, distribution tanks, seepage pits, and holding components is addressed in ch. NR 113 which is administered by the department of natural resources.
SPS 383.33(4) (4) Removing all tanks or removing the covers of the tanks or pits and filling the tanks and pits with soil, gravel or an inert solid material.
SPS 383.33 Note Note: Pursuant to s. 281.45, Stats., municipalities and sanitary districts may determine the availability of, and require connection to, public sewers. Section 281.45, Stats., reads in part:
SPS 383.33 Note “HOUSE CONNECTIONS. To assure preservation of public health, comfort and safety, any city, village or town or town sanitary district having a system of waterworks or sewerage, or both, may by ordinance require buildings used for human habitation and located adjacent to a sewer or water main, or in a block through which one or both of these systems extend, to be connected with either or both in the manner prescribed. If any person fails to comply for more than 10 days after notice in writing the municipality may impose a penalty or may cause connection to be made, and the expense thereof shall be assessed as a special tax against the property."
SPS 383.33 History History: Cr. Register, April, 2000, No. 532, eff. 7-1-00; correction in (2) made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; CR 11-031: am. (2) Register June 2013 No. 690, eff. 7-1-13.
subch. IV of ch. SPS 383 Subchapter IV — Design and Installation
SPS 383.40 SPS 383.40 Purpose. This subchapter establishes minimum parameters for the design and installation of a POWTS for the purpose of:
SPS 383.40(1) (1) Safeguarding public health;
SPS 383.40(2) (2) Minimizing the level of substances which have a reasonable probability of entering waters of the state; and
SPS 383.40(3) (3) Delineating measures, conditions and performance standards by which to evaluate designs.
SPS 383.40 History History: Cr. Register, April, 2000, No. 532, eff. 7-1-00.
SPS 383.41 SPS 383.41 Principles.
SPS 383.41(1)(1) A POWTS shall be designed to hold wastewater or reduce the contaminant load and disperse the flow of wastewater as specified in this subchapter.
SPS 383.41 Note Note: See s. SPS 382.34 (15) for requirements relating to special wastewater or mixed wastewater treatment or containment devices.
SPS 383.41(2) (2) A POWTS shall be designed to have sufficient capacity to accommodate the anticipated quantities of wastewater that will be discharged into the system.
SPS 383.41(3) (3) A POWTS intended to treat and disperse wastewater shall be designed to have sufficient ability to treat or separate out the anticipated types, quantities and concentrations of wastewater contaminants to be discharged into the system so that the dispersed wastewater will not create a human health hazard.
SPS 383.41(4) (4) A POWTS shall be designed to disperse wastewater below the surface of the ground at a rate that promotes long term assimilation into the soil and limits the possibility of surfacing.
SPS 383.41 History History: Cr. Register, April, 2000, No. 532, eff. 7-1-00.
SPS 383.42 SPS 383.42 Application.
SPS 383.42(1)(1) Design basis. The design of a POWTS shall be based on the methods and limitations outlined in this subchapter or on other documented data acceptable to the department.
SPS 383.42(2) (2)Design relation to actual flows and contaminant loads. For any situation where it is known that the wastewater flow or contaminant load exceeds the parameters of this subchapter, the POWTS shall be designed in relation to the known flow or load.
SPS 383.42(3) (3)Design considerations. The evidence to support assertions relative to contaminant reduction and hydraulic dispersal shall include at least all of the following:
SPS 383.42(3)(a) (a) The flow and contaminant load of the influent wastewater.
SPS 383.42(3)(b) (b) The ability of all treatment and dispersal components to reduce contaminant load and disperse hydraulic flow into the environment.
SPS 383.42(3)(c) (c) The flow velocities and friction losses throughout the system based upon accepted engineering practice.
SPS 383.42 History History: Cr. Register, April, 2000, No. 532, eff. 7-1-00.
SPS 383.43 SPS 383.43 General requirements.
SPS 383.43(1) (1) Materials. The components of a POWTS shall be constructed of materials and products that are of a type recognized under this chapter or ch. SPS 384.
SPS 383.43(2) (2)Design flow. In order to accommodate peak wastewater flow, the design wastewater flow of a POWTS shall equal at least 150% of the estimated daily flow generated from the source or sources, unless otherwise approved by the department.
SPS 383.43(3) (3)Estimated daily combined flow for a POWTS serving a dwelling. The estimated daily wastewater flow of combined graywater, clear water and blackwater from a dwelling shall be based on one or more of the following:
SPS 383.43(3)(a) (a) The following equation:
100 gallons x B = F
Where:   B = number of bedrooms, based on 2 persons per bedroom, unless otherwise approved by the department.
F = Estimated daily wastewater flow per dwelling per day (in gallons), excluding storm water discharges.
SPS 383.43(3)(b) (b) A detailed estimate of wastewater flow based upon per capita occupancy or usage of the dwelling or per function occurrence within the dwelling.
SPS 383.43(4) (4)Estimated daily segregated graywater flow for a POWTS serving a dwelling. The estimated daily wastewater flow of graywater and clear water from a dwelling shall be based on one or more of the following:
SPS 383.43(4)(a) (a) The following equation:
60 gallons x B = F
Where:   B = number of bedrooms, based on 2 persons per bedroom, unless otherwise approved by the department.
F = Estimated daily graywater flow per dwelling per day (in gallons), excluding storm water discharges.
SPS 383.43(4)(b) (b) A detailed estimate of graywater flow based upon per capita occupancy or usage of the dwelling or per function occurrence within the dwelling.
SPS 383.43(5) (5)Estimating segregated blackwater flow for a POWTS serving a dwelling. The estimated daily wastewater flow of blackwater from a dwelling shall be based on one or more of the following:
SPS 383.43(5)(a) (a) The following equation:
40 gallons x B = F
Where:   B = number of bedrooms, based on 2 persons per bedroom, unless otherwise approved by the department.
F = Estimated daily blackwater flow per dwelling per day (in gallons).
SPS 383.43(5)(b) (b) A detailed estimate of blackwater flow based upon per capita occupancy or usage of the dwelling or per function occurrence within the dwelling.
SPS 383.43(6) (6)Estimating wastewater flow for commercial facilities. The estimated daily wastewater flow of clear water, graywater, blackwater, or combined graywater-blackwater flow from public buildings and places of employment shall be based on one or more of the following:
SPS 383.43(6)(a) (a) Measured daily wastewater flow over a period of time representative of the facility's use or occupancy.
SPS 383.43(6)(b) (b) A detailed estimate of wastewater flow based upon per capita occupancy or usage of the facility or per function occurrence within the facility.
SPS 383.43 Note Note: See ch. SPS 383 Appendix for further information.
SPS 383.43(7) (7)Estimating contaminant loads. Estimates of contaminant loads from dwellings and public facilities shall be based on a detailed analysis including all contaminants listed in s. SPS 383.44 (2) (a).
SPS 383.43 Note Note: See ch. SPS 383 Appendix for further information.
SPS 383.43 Note Note: See Note under s. SPS 383.32 (3) for information relative to industrial wastes.
SPS 383.43(8) (8)General design requirements.
SPS 383.43(8)(a)(a) Flow velocity.
SPS 383.43(8)(a)1.1. Piping within a POWTS shall be designed and installed to supply wastewater to POWTS treatment and dispersal components while maintaining the velocity required to ensure operation of the POWTS.
SPS 383.43(8)(a)2. 2. Gravity flow piping between POWTS components shall be installed at a pitch that produces a computed flow velocity of at least one foot per second when flowing half full.
SPS 383.43(8)(a)3. 3. Pressurization equipment or devices and piping to be utilized upstream of a POWTS treatment or dispersal component consisting in part of in situ soil shall be designed and installed to produce a computed velocity of at least 2 feet per second.
SPS 383.43(8)(a)4. 4. Gravity piping within a POWTS treatment or dispersal component consisting in part of in situ soil shall be installed level or pitched downstream a maximum 4 inches per 100 feet.
SPS 383.43(8)(b) (b) Distribution and drain pipe sizing. The piping within a POWTS shall be of a diameter to permit the operation of the POWTS.
SPS 383.43(8)(c) (c) Frost protection. All POWTS components shall be protected from freezing temperatures that could detrimentally affect component operation to provide wastewater conveyance, treatment or dispersal.
SPS 383.43(8)(d) (d) Component placement. The orientation of a POWTS treatment or dispersal component consisting in part of in situ soil shall take into account landscape variations in elevation, slope orientation, and other conditions that could affect component performance relative to dispersal or aeration.
SPS 383.43(8)(e) (e) Alarms or warning systems.
SPS 383.43(8)(e)1.a.a. A POWTS component utilizing a mechanical device to treat wastewater or to distribute effluent shall be provided with an automatic visual or audible means of notifying the user of the POWTS of the failure of the mechanical device.
SPS 383.43 Note Note: In accordance with s. SPS 316.300 (1) (a), an alarm that is electrically powered is to be on a separate circuit from the circuit supplying power to the mechanical device.
SPS 383.43(8)(e)1.b. b. An alarm indicating the failure of a pump shall remain audible or visible until manually turned off.
SPS 383.43(8)(e)1.c. c. Where duplex pumping equipment is employed to provide continuous component operation in the event that one pump fails, the pumps shall be installed in such a manner so as to provide the continuous operation automatically.
SPS 383.43(8)(e)2. 2. A POWTS holding tank shall be provided with an automatic visual or audible means of notifying the user of the POWTS of the necessity for servicing.
SPS 383.43(8)(f) (f) Accessibility. The design of a POWTS shall include provisions to provide access to all components that require maintenance or observation.
SPS 383.43(8)(g) (g) Anchoring system components. An exterior subsurface POWTS treatment tank or POWTS holding component to be installed in an area subject to saturated conditions shall be installed so as to prevent flotation of the tank or component.
SPS 383.43 Note Note: See ch. SPS 383 Appendix for further information.
SPS 383.43(8)(h) (h) Treatment byproducts.
SPS 383.43(8)(h)1.1. All treatment byproducts discharged from or as a result of operating a POWTS shall be disposed of so as not to create a human health hazard.
SPS 383.43 Note Note: The disposal of the contents of holding tanks and the sludge, scum, and contaminated liquids from treatment tanks and components is regulated by the department of natural resources under chs. NR 113 and NR 204.
SPS 383.43(8)(h)2. 2. Deleterious or hazardous materials segregated out from effluent flows shall be disposed of in a manner conforming with the rules of the state agency having jurisdiction.
SPS 383.43(8)(h)3. 3. Effluent from a POWTS shall be dispersed so as not to create a human health hazard.
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.