NR 113.07(1)(f)
(f) Disposal of wastewater from small holding tank and non-holding tank POWTS that generate less than 3,000 gallons of septage per day shall be by discharge into a POTW if any of the following conditions apply:
NR 113.07(1)(f)1.
1. The holding tank POWTS is located in the POTW's sewer service or holding tank service areas.
NR 113.07(1)(f)2.
2. The non-holding tank POWTS is located in the POTW's sewer service area.
NR 113.07(1)(f)3.
3. The holding tank POWTS is located outside the POTW's sewer service and holding tank service areas if the POTW will accept the wastewater and if the cost to the hauler is less than or equal to the costs in Table 2.
NR 113.07(1)(f)4.
4. The holding tank POWTS or non-holding tank POWTS is located outside of Wisconsin and the point at which the wastewater is conveyed into the state is within 20 miles (shortest direct route by road) of a POTW that is willing to accept, treat and dispose of the wastewater at a cost of less than or equal to the amount in Table 2.
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See PDF for table 
NR 113.07(1)(f)5.
5. The holding tank POWTS is located within 20 miles (shortest direct route by road) of a POTW that is willing to accept, treat, and dispose of the wastewater at a cost of less than or equal to the amount in Table 2. This provision only applies to those holding tank POWTS located in any of the following counties:
NR 113.07(1)(g)
(g) The requirement under par.
(f) does not apply if any of the following conditions are met:
NR 113.07(1)(g)1.
1. Storage has been utilized and the septage from holding tank POWTS generating less than 3,000 gallons per day and non-holding tank POWTS will be land applied in accordance with a WPDES permit.
NR 113.07(1)(g)2.
2. Septage from holding tank POWTS generating less than 3,000 gallons per day and non-holding tank POWTS is treated and disposed of in accordance with a WPDES permit.
NR 113.07(1)(g)3.
3. The owner of the septic tank component of the POWTS is exempt from licensing under s.
281.48, Stats.
NR 113.07(2)(a)
(a) The following shall apply to disposal of septage for the period between April 16 and November 14:
NR 113.07(2)(a)1.
1. Licensed businesses may apply to a POTW for permission to discharge septage.
NR 113.07(2)(a)2.
2. A POTW may deny or approve an application for disposal of septage at that facility. If approved, the POTW may set conditions for disposal.
NR 113.07(2)(a)3.
3. The only requirements that licensed disposers discharge to POTWs or that POTWs accept and treat septage during nonwinter months are those in sub.
(1) (e) and
(f).
NR 113.07(2)(b)
(b) The following shall apply to disposal of septage for the period between November 15 and April 15:
NR 113.07(2)(b)1.
1. Each year, prior to September 1, licensed disposers may apply to POTWs for permission to dispose of septage during winter.
NR 113.07(2)(b)2.
2. Applications submitted to POTWs by licensed disposers are subject to review by POTWs pursuant to s.
281.49, Stats.
NR 113.07 Note
Note: Section
281.49, Stats. requires that POTW's shall:
NR 113.07 Note
1. Review septage applications and provide a written denial or approval to the licensed disposer by October 1 of each year.
NR 113.07 Note
2. Develop a disposal plan for each licensed disposer approved for septage acceptance. A disposal plan, at a minimum, shall contain the following terms and conditions:
NR 113.07 Note
a. Specific quantities, locations, times, and methods for discharge of septage into the sewerage system.
NR 113.07 Note
b. Requirements to report the source and amount of septage placed in the sewerage system.
NR 113.07 Note
c. Requirements for the licensed disposer to pay to analyze other than residential septage.
NR 113.07 Note
d. Actual and equitable disposal fees based on the septage introduced into the sewerage system and calculated at the rate applied to other users of the sewerage system, and including the costs of additional facilities or personnel necessary to accept septage at the point of introduction into the sewerage system.
NR 113.07 Note
e. All the terms and conditions imposed on the disposer of septage.
NR 113.07 Note
f. A formal approval that the licensed disposer has permission to discharge septage to a specific POTW under specific conditions.
NR 113.07 Note
3. Accept and treat septage from licensed disposers unless:
NR 113.07 Note
a. Treatment of the septage would cause the POTW to exceed its operating design capacity or to violate any applicable effluent limitations or standards, water quality standards or any other legally applicable requirements, including court orders or state or federal statutes, rules, regulations or orders; or
NR 113.07 Note
b. The septage is not compatible with the sewerage system; or
NR 113.07 Note
c. The disposer has not applied for and received approval to dispose of septage in the sewerage system or the disposer fails to comply with the disposal plan; or
NR 113.07 Note
d. The licensed disposer fails to comply with septage disposal rules promulgated by the POTW or the conditions of the disposal plan in subd. 2.
NR 113.07(2)(c)
(c) Licensed disposers shall cooperate with POTW's in the implementation of a septage acceptance priority system pursuant to s.
NR 205.07 (2) (e).
NR 113.07 Note
Note: The priority system for septage acceptance at POTW's in s.
NR 205.07 (2) (e) is as follows:
NR 113.07 Note
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 113.07 Note
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 113.07 Note
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 113.07 Note
4. `Fourth priority.' Wastes from new or existing septic and holding tanks for residential or commercial establishments outside the POTW's planning area.
NR 113.07(3)(a)(a) No business may dispose of septage by a land application method unless the land application is done in accordance with this chapter and is consistent with the grade designation of the operator-in-charge.
NR 113.07 Note
Note: Any business disposing of septage by a land disposal method may be subject to the provisions of ch.
160, Stats., and ch.
NR 140, if an analysis of the groundwater beneath the disposal field indicates groundwater contamination.
NR 113.07(3)(b)1.1. Septage may not be landspread on soils which have a permeability rate greater than 6 inches per hour within the top 36 inches, unless it is demonstrated that the soil has a water holding capacity of greater than 5 inches above the groundwater and bedrock. In no case may greater than the top 60 inches in a soil profile be used to determine the 5 inches of water holding capacity. Permeability shall be calculated using the following table or other method acceptable to the department:
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See PDF for table NR 113.07(3)(b)2.
2. Septage may not be surface applied on soils that have a permeability of less than 0.2 inches per hour within the top 6 inches of soil.
NR 113.07(3)(b)3.
3. Septage may not be landspread or discharged into or on any wetlands or in areas subject to ponding, including any ditch, dry run, pond, lake, stream, flowage, floodplain, cave, sinkhole, mine, gravel pit, or quarry.
NR 113.07(3)(b)4.
4. Septage may not be landspread on any land without the owner's permission.
NR 113.07(3)(b)5.
5. Septage shall be landspread in a manner to prevent surface runoff. Septage may not be landspread on saturated soils during rainfall events or in areas of ponded water. All landspreading fields shall be left in a litter free condition.
NR 113.07(3)(b)6.
6. Land application vehicles shall be moving forward at all times while septage is being uniformly spread. Ponding of septage is prohibited.
NR 113.07(3)(b)7.
7. Septage may not be landspread on fields that are receiving or have received POTW sludges in the last crop year.
NR 113.07(3)(b)8.
8. Septage that is land applied based on the agronomic crop requirements may not be applied more than 10 months prior to the planting of the crop.
NR 113.07(3)(b)9.
9. A minimum 2-foot wide grass strip shall be maintained at the property line down slope from all land application sites.
NR 113.07(3)(b)10.
10. Fields that are discontinued for more than one year of crop production shall be revegetated with grass or other appropriate cover.
NR 113.07(3)(b)11.a.a. Each business proposing to use a high use field shall establish the nitrogen need of the crop to be grown as determined by the analysis of soil samples.
NR 113.07(3)(b)11.b.
b. The nitrogen recommendations shall be in accordance with the University of Wisconsin - Extension bulletin A-2809 dated November 2012, which is incorporated by reference or other soil nutrient determination and soil sampling guidance approved by the department.
NR 113.07 Note
Note: Copies of Bulletin A-2809 dated November 2012 are available for inspection in the offices of the department of natural resources and the legislative reference bureau.
NR 113.07(3)(b)13.
13. Septage may not be landspread where it is likely to adversely affect a threatened or endangered species or its designated critical habitat or a historical site.
NR 113.07(3)(c)1.1. Septage may be landspread seasonally on or into soils with a seasonal high groundwater level at a depth greater than one foot but less than 3 feet from the surface if the landspreading is limited to times when the soil is not saturated within 3 feet of the surface.
NR 113.07(3)(c)2.
2. Septage may be surface applied to hay fields after the hay has been harvested but not after the new growth of hay has reached a height of 6 inches above cut height.
NR 113.07(3)(c)3.a.a. A site shall be approved by the department based on information available to the department at the time of the site request.
NR 113.07(3)(c)3.b.
b. A site approval may be rescinded if information is provided or available to the department showing the information used by the department to approve a site is not consistent with the new information and the site is deemed by the department to be inadequate to protect public health and waters of the state.
NR 113.07(3)(c)3.c.
c. The department may request a site approval to be re-reviewed when ownership issues are unclear, violations such as overapplication are identified, or other potential concerns are identified about a specific site.
NR 113.07(3)(c)3.d.
d. A site that is approved by the department or by a county and meets all the separation requirements at the time of approval may not have the site approval rescinded for separation distance encroachment by residences, businesses, or recreational areas for a period of 5 years. This 5-year period shall run from the occupancy date of the encroachment.
NR 113.07(3)(c)4.
4. Site management plans may not allow surface spreading of septage on disposal sites with a slope greater than 6 percent.
NR 113.07(3)(c)5.
5. Surface application on snow covered fields requires plowed spreading lanes (snow removal) perpendicular to the slope when the snow depth is greater than 6 inches. Plowed lanes may not be wider than 20 feet and no closer than 40 feet.
