Wisconsin Administrative Code › Department of Natural Resources › NR 200-299 - Environmental Protection - Wisconsin Pollutant Discharge Elimination System › Chapter NR 214 - Land Treatment Of Industrial Liquid Wastes, By-Product Solids And Sludges › Subchapter II - Requirements for Specific Land Treatment Systems › Section NR 214.17 - Landspreading systems for liquid wastes and by-product solids

Current through June 24, 2024
(1) EXEMPTION FOR
				  LESS THAN 10% INDUSTRIAL WASTE IN MANURE PITS. Industrial liquid wastes mixed
				  into liquid manure at a volume less than 10% of the volume of the mixture at
				  the time it is landspread may be exempted in writing by the department on a
				  case-by-case basis from the requirements of s. NR 214.17(2), (3), (4) and (7)
				  if the liquid waste mixture has beneficial properties as a soil conditioner or
				  fertilizer, is applied in accordance with accepted agricultural practices and
				  does not cause detrimental effects. However, liquid manure storage facilities
				  used to store less than 10% industrial liquid waste shall meet the USDA SCS
				  technical bulletin section IV design criteria 313 (2/86) or 425 (10/83) or
				  equivalent sealing specifications acceptable to the department.
(2) SITE LOCATION CRITERIA.
(a) All landspreading sites shall be approved
				  by the department prior to waste spreading.
(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.
(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.
(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.
(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.
(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.
(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.
(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.