SPS 383.44(5)(a)2.
2. Pressure distribution is not required when rehabilitating an existing non-pressurized in situ soil treatment or dispersal component that is persistently ponded and that has at least 24 inches of unsaturated soil beneath the infiltrative surface of the component.
SPS 383.44(5)(b)
(b) Each dose of effluent by means of pressurized distribution into a treatment or dispersal component consisting in part of in situ soil may not be less than 5 times the void volume of the POWTS distribution laterals.
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See PDF for table 
Note a: With ≤60% rock fragments
Note b: With >60 to <90% rock fragments
Note c: Requires pressure distribution under sub. (5) (a)
Note d: COS - Coarse Sand LVFS - Loamy Very Fine Sand SI - Silt
S-Sand COSL - Coarse Sandy Loam SCL - Sandy Clay Loam
LCOS - Loamy Coarse Sand SL - Sandy Loam CL - Clay Loam
LS - Loamy Sand FSL - Fine Sandy Loam SICL - Silty Clay Loam
FS - Fine Sand VFSL - Very Fine Sandy Loam SC - Sandy Clay
LFS - Loamy Fine Sand L - Loam C - Clay
VFS - Very Fine Sand SIL - Silt Loam SIC - Silty Clay
Note e: PL - Platy 0 - Structureless
PR - Prismatic 1 - Weak
BK - Blocky 2 - Moderate
GR - Granular 3 - Strong
Note b: Requires pressure distribution under sub. (5) (a)
Note c: All coarse fragment voids must be filled with fine earth
Note d: COS - Coarse Sand LVFS - Loamy Very Fine Sand SI - Silt
S-Sand COSL - Coarse Sandy Loam SCL - Sandy Clay Loam
LCOS - Loamy Coarse Sand SL - Sandy Loam CL - Clay Loam
LS - Loamy Sand FSL - Fine Sandy Loam SICL - Silty Clay Loam
FS - Fine Sand VFSL - Very Fine Sandy Loam SC - Sandy Clay
LFS - Loamy Fine Sand L - Loam C - Clay
VFS - Very Fine Sand SIL - Silt Loam SIC - Silty Clay
Note e: The values for fecal coliform are reported as a monthly geometric mean. The geometric mean shall be determined on the basis of measurements taken over 30 consecutive days, with at least 6 measurements occurring on 6 separate days.
SPS 383.44(6)(a)1.1. The infiltrative surface of a distribution cell within a POWTS treatment or dispersal component consisting in part of in situ soil and located in fill material above original grade shall be level.
SPS 383.44(6)(a)2.
2. The longest dimension of a POWTS treatment or dispersal component located at or above the original grade shall be oriented within 1 percent of the surface contour unless otherwise approved by the department.
SPS 383.44(6)(b)
(b) The infiltrative surface of a distribution cell within a POWTS treatment or dispersal component consisting in part of in situ soil and located below the surface of the original grade shall be level.
SPS 383.44(6)(c)
(c) POWTS treatment or dispersal components consisting in part of in situ soil shall be so located as to minimize the infiltration of storm water into the component.
SPS 383.44(7)
(7)
Geometry. The geometry of a subsurface treatment or dispersal component consisting in part of the in situ soil shall take into account linear loading rates that are based on soil texture, structure, consistence and distance to seasonal soil saturation and restrictive soil horizons.
SPS 383.44 History
History: Cr.
Register, April, 2000, No. 532, eff. 7-1-00;
CR 02-129: (3) (b) and (4) (c), r. and recr. (5) (a) and Tables 83.44-2 and 83.44-3
Register January 2004 No. 577, eff. 2-1-04;
CR 07-100: am. (3) (b) 1. and Tables 83.44-2 and 3, r. (5) (b), renum. (5) (c) to be (5) (b)
Register September 2008 No. 633, eff. 10-1-08; correction in (1), (3) (b) 1., (4) (a) 1. a., f., 2., (b), (5) (a) 1., Table 383.44-3 made under s.
13.92 (4) (b) 7., Stats.,
Register December 2011 No. 672;
CR 17-065: cr. (2) (d), r. (4) (a) 1. f., Table 383.44-1, am. (6) (a) 2.
Register June 2018 No. 750, eff. 7-1-18; correction in (4) (a) 1. a., 2. made under s.
13.92 (4) (b) 7., Stats.,
Register June 2018 No. 750.
SPS 383.45(1)(1)
General. A POWTS shall be constructed and installed in such a manner to hold wastewater or reduce the contaminant load and disperse the flow of wastewater in accordance with this subchapter and the plan approval under s.
SPS 383.22.
SPS 383.45(2)
(2)
Frozen soil. POWTS treatment and dispersal components consisting in part of in situ soil may not be installed if the soil is frozen at or below the infiltrative surface of the component.
SPS 383.45(3)
(3)
Snow cover. Snow cover shall be removed before excavating or installing POWTS treatment and dispersal components consisting in part of in situ soil.
SPS 383.45(4)
(4)
Moisture. The soil moisture content for a POWTS treatment or dispersal component consisting in part of in situ soil shall be evaluated immediately prior to installation of the component. If the soil at the infiltrative surface can be rolled into a
¼
-inch wire, the installation may not proceed.
SPS 383.45(5)
(5)
Bedding. All vessels and pipes of a POWTS shall be bedded in accordance with a product approval under s.
SPS 384.10 or a plan approval under s.
SPS 383.22.
SPS 383.45(6)(a)(a) All POWTS treatment tanks, holding and dispersal tanks that are located in floodplain areas shall be made and maintained watertight to prevent infiltration.
SPS 383.45(6)(b)
(b) Vent pipes serving POWTS components that are located in floodplain areas shall terminate at least 2 feet above regional flood levels.
SPS 383.45(7)
(7)
Minimum depth. The top of the effluent lines and forcemains shall be covered by a minimum of 12 inches of soil.
SPS 383.45 History
History: Cr.
Register, April, 2000, No. 532, eff. 7-1-00;
CR 07-100: am. (6)
Register September 2008 No. 633, eff. 10-1-08; correction in (1), (5) made under s.
13.92 (4) (b) 7., Stats.,
Register December 2011 No. 672;
CR 17-065: am. (2), (6) (b), cr. (7)
Register June 2018 No. 750, eff. 7-1-18.
SPS 383.50
SPS 383.50 Purpose. The purpose of this subchapter is to accomplish all of the following:
SPS 383.50(1)
(1) Establish monitoring, inspection, evaluation, maintenance and servicing requirements for all POWTS, in order to ensure that the POWTS will operate as designed and thereby protect the public health and waters of the state.
SPS 383.50(2)
(2) Establish maintenance programs operated by governmental units to ensure that all POWTS will be inspected, evaluated, maintained and serviced so that the POWTS will operate as designed and thereby protect the public health and waters of the state.
SPS 383.50(3)
(3) Provide the department with data by which to make regulatory decisions.
SPS 383.50 History
History: Cr.
Register, April, 2000, No. 532, eff. 7-1-00;
CR 07-100: r. and recr.
Register September 2008 No. 633, eff. 10-1-08.
SPS 383.51(1)(1)
A POWTS, including a POWTS existing prior to July 1, 2000, shall be maintained at all times so as not to create a human health hazard.
SPS 383.51(2)
(2) When upon inspection of a POWTS, including a POWTS existing prior to July 1, 2000, any part of the system that is found to be defective in conformance with the applicable provisions of this chapter, the installation or modification plan, or the approvals, the part shall be repaired, renovated, replaced or removed.
SPS 383.51 Note
Note: Section
SPS 387.04 (2) (a) to
(e) also establishes management and maintenance requirements for a POWTS that is located in a governmental unit which participates in the replacement and rehabilitation program under s.
145.245, Stats.
SPS 383.51 History
History: Cr.
Register, April, 2000, No. 532, eff. 7-1-00.
SPS 383.52(1)(a)1.1. The owner of a POWTS shall be responsible for ensuring that the operation and maintenance of the POWTS occurs in accordance with this chapter and the approved management plan under s.
SPS 383.54 (1).
SPS 383.52(1)(a)2.
2. The owner of a POWTS shall be responsible for ensuring that access opening covers remain locked or secured except for inspection, evaluation, maintenance or servicing purposes.
SPS 383.52(1)(b)
(b) The owner of a POWTS existing prior to July 1, 2000, shall be responsible for ensuring that the maintenance of the POWTS occurs in accordance with s.
SPS 383.54 (4).
SPS 383.52(1)(c)1.1. The owner of a POWTS, including a POWTS existing prior to July 1, 2000, shall maintain a maintenance contract with a POWTS maintainer or a business utilizing a POWTS maintainer for the POWTS as long as the POWTS is utilized and, if the management plan for the POWTS under s.
SPS 383.54 (1) involves one or more of the following:
SPS 383.52(1)(c)1.a.
a. Evaluating or monitoring any part of the system at an interval of 12 months or less.
SPS 383.52(1)(c)2.
2. The owner of a POWTS, including a POWTS existing prior to July 1, 2000, shall maintain a maintenance or service contract with a certified septage servicing operator under ch.
NR 114 for the POWTS as long as the POWTS is utilized and, if the management plan for the POWTS under s.
SPS 383.54 (1) involves the servicing of any holding, treatment or dispersal component at an interval of 12 months or less.
SPS 383.52(2)
(2) A POWTS, including a POWTS existing prior to July 1, 2000, that is not maintained in accordance with the approved management plan or as required under s.
SPS 383.54 (4) shall be considered a human health hazard.
SPS 383.52(3)
(3) The activities relating to evaluating, monitoring and maintaining POWTS components after the initial installation of the POWTS in accordance with an approved management plan or as required by s.
SPS 383.54 (4) (c) shall be conducted by a person who holds registration issued by the department as a registered POWTS maintainer.
SPS 383.52 Note
Note: See s.
SPS 305.36 concerning the application and qualification requirements to become a registered POWTS maintainer.
SPS 383.52 History
History: Cr.
Register, April, 2000, No. 532, eff. 7-1-00;
CR 02-129: am. (3)
Register January 2004 No. 577, eff. 2-1-04;
CR 07-100: renum. (1) (a) to be (1) (a) 1., cr. (1) (a) 2., am (1) (b), (c) 1. (intro.) and (3)
Register September 2008 No. 633, eff. 10-1-08; correction in (1) (a) 1., (b), (c) 1. (intro.), 2., (2), (3) made under s.
13.92 (4) (b) 7., Stats.,
Register December 2011 No. 672.
SPS 383.53(1)(1)
No product for chemical or physical restoration or chemical or physical procedures for POWTS, including a POWTS existing prior to July 1, 2000, may be used unless approved by the department in accordance with ss.
SPS 384.10 and
384.14.
SPS 383.53(2)
(2) Nothing in this subchapter shall limit a governmental unit's authority and power in establishing a mandatory POWTS maintenance program that is more restrictive than what is specified in this subchapter, including management or maintenance undertaken by the governmental unit.
SPS 383.54(1)(a)(a) The management plan for each POWTS shall include information and procedures for maintaining the POWTS to operate and function within the standards of this chapter and as designed and approved.
SPS 383.54(1)(c)
(c) The management plan for POWTS shall specify all necessary maintenance and servicing information which may include, but is not limited to all of the following:
SPS 383.54(1)(c)2.
2. Influent quantities and qualities and effluent quantities and qualities.
