NR 214.17(2)(b)(b) Landspreading sites shall be located at least 500 feet from the nearest inhabited dwelling, except that this distance may be reduced to 200 feet if the waste is incorporated with the soil and any affected owners and occupants give their written consent for the reduced separation distance. The department may require a greater separation distance depending on the type of waste material and potential for aesthetic and public health impacts.

NR 214.17(2)(c)(c) Wastes may not be landspread closer than 1,000 feet from a well serving a community public water supply system and 250 feet from other potable water supply wells.

NR 214.17(2)(d)(d) Landspreading sites may not be located in the floodway as specified in ch. NR 116. Any site located in the floodplain shall conform to ch. NR 116 and may not be used when the floodplain is flooded.

NR 214.17(2)(e)(e) Landspreading sites shall be limited to cultivated cropland, tree plantations, pasture or hayland. Other sites may be reviewed and approved on a case-by-case basis.

NR 214.17(2)(f)(f) Landspreading sites shall be limited to a slope of 12% or less when the soil temperatures are above freezing. When the ground is frozen or snow covered, landspreading shall be restricted to sites with slopes of 2% or less. Sites with slopes of 2-6% may be approved for winter time spreading on a case-by-case basis.

NR 214.17(2)(g)(g) Wastes may not be landspread closer than 200 feet from any surface water, except that the minimum separation distance may be reduced, to a minimum of 100 feet, when a vegetative buffer strip is maintained between the site and the surface water. If the waste is incorporated with the soil, the separation distance from any surface water may be reduced to 50 feet.

NR 214.17(2)(h)(h) Landspreading sites shall have at least 36 inches of separation between the ground surface and bedrock or groundwater. However, the department may allow a reduced separation distance to a minimum of 18 inches on a case-by-case basis provided the rate of waste application is reduced.

NR 214.17(3)(a)(a) Vehicles used for landspreading shall be equipped with a distribution system capable of spreading the waste evenly over the site.

NR 214.17(3)(b)(b) If the vehicle is equipped with a high pressure spray nozzle, the openings shall be sized to prevent plugging and located to minimize wind drift of the waste.

NR 214.17(3)(c)(c) Any system used for the storage or stacking of wastes prior to landspreading shall be designed and constructed in accordance with ch. NR 213, or other design criteria as approved in the landspreading management plan. Plans and specifications shall be submitted to the department for approval of such storage or stacking systems.

NR 214.17(3)(d)(d) Storage or stacking systems shall be sited and operated to minimize odors or other public nuisance conditions.

NR 214.17(4)(a)(a) The discharge to a landspreading system may not exceed the hydraulic, organic, nitrogen, chloride or other limitations specified in the WPDES permit or plans developed pursuant to a permit requirement. In determining discharge limitations, the department shall consider the past operating performance, nutrient uptake of the cover crop, site conditions, the ability of the soils to treat the pollutants in the discharge, permeability and infiltration rate of the soil, other soil and geologic characteristics, the concentrations and characteristics of pollutants in the discharge and other relevant information.

NR 214.17(4)(b)(b) The concentration of any wastewater parameter that may impact groundwater quality shall be limited at the point of discharge to a value that will minimize the concentration of the substance in the groundwater to the extent technically and economically feasible and will prevent exceedence of the preventive action limit in the groundwater.

NR 214.17(4)(c)(c) Liquid wastes or by-product solids containing viable pathogens, such as those from meat or poultry processing operations, may not be applied on fields used for growing crops that may be consumed raw by humans.

NR 214.17(4)(d)(d) Discharge limitations for liquid wastes.

NR 214.17(4)(d)1.1. The volume of liquid waste landspread may not alter the characteristics or structure of the soil such that the crop is adversely affected or erosion or permeability problems occur.

NR 214.17(4)(d)2.2. The volume of liquid waste landspread shall be limited to prevent ponding, except for temporary conditions following rainfall events. If ponding occurs, all spreading shall cease immediately.

NR 214.17(4)(d)3.3. The volume of liquid waste landspread shall be limited to prevent runoff. If runoff occurs, all spreading shall cease immediately.

NR 214.17(4)(d)4.4. In order to prevent runoff or control odor, the department may require the waste to be incorporated into the soil.

NR 214.17(4)(d)5.5. The maximum daily volume of liquid waste applied shall be limited to 13,500 gallons per acre per day (1/2 inch) except that when the ground is frozen or snow covered it shall be limited to 6,800 gallons per acre per day (1/4 inch).

NR 214.17(4)(d)7.7. The total pounds of chloride applied shall be limited to 170 pounds per acre per year or 340 pounds per acre per 2 year period.

NR 214.17(4)(d)8.8. The total pounds of sodium applied may be limited to prevent alteration of soil properties or groundwater contamination.

NR 214.17(4)(d)9.9. The total pounds of nitrogen applied per acre per year shall be limited to the nitrogen needs of the cover crop minus any other nitrogen, including fertilizer or manure, added to the landspreading site. Nitrogen applied can be calculated on the basis of plant available nitrogen, as long as the release of nitrogen from the organic material is credited to future years.

NR 214.17(4)(d)10.10. For whey, not including whey by-products, where the nitrogen content has not been determined through sampling and analysis, the nitrogen application rate shall be limited by limiting the yearly hydraulic application rate for a site to 27,150 gallons per acre (1 inch) the first year, 20,360 gallons per acre (3/4 inch) the second year, and 13,600 gallons per acre (1/2inch) the third and succeeding years.