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NR 151.006   Applicability of maximum extent practicable.
Subchapter II — Agricultural Performance Standards and Prohibitions
NR 151.01   Purpose.
NR 151.015   Definitions.
NR 151.02   Sheet, rill and wind erosion performance standard.
NR 151.03   Tillage setback performance standard.
NR 151.04   Phosphorus index performance standard.
NR 151.05   Manure storage facilities performance standards.
NR 151.055   Process wastewater handling performance standard.
NR 151.06   Clean water diversion performance standard.
NR 151.07   Nutrient management.
NR 151.075   Silurian bedrock performance standards.
NR 151.08   Manure management prohibitions.
NR 151.09   Implementation and enforcement procedures for cropland performance standards.
NR 151.095   Implementation and enforcement procedures for livestock performance standards and prohibitions.
NR 151.096   Local livestock operation ordinances and regulations.
NR 151.097   Variances.
Subchapter III — Non-Agricultural Performance Standards
NR 151.10   Purpose.
NR 151.105   Construction site performance standard for non-permitted sites.
NR 151.11   Construction site performance standard for sites of one acre or more.
NR 151.12   Post-construction performance standard for new development and redevelopment.
NR 151.121   Post-construction performance standards.
NR 151.122   Total suspended solids performance standard.
NR 151.123   Peak discharge performance standard.
NR 151.124   Infiltration performance standard.
NR 151.125   Protective areas performance standard.
NR 151.126   Fueling and vehicle maintenance areas performance standard.
NR 151.127   Location.
NR 151.128   Timing.
NR 151.13   Developed urban area performance standard for municipalities.
NR 151.14   Turf and garden nutrient management performance standard.
NR 151.15   Implementation and enforcement.
Subchapter IV — Transportation Facility Performance Standards
NR 151.20   Purpose and applicability.
NR 151.21   Definitions.
NR 151.22   Responsible party.
NR 151.225   Construction site performance standard for non-permitted sites and routine maintenance.
NR 151.23   Construction site performance standard for sites of one acre or more.
NR 151.24   Post–construction performance standard.
NR 151.241   Post-construction performance standards.
NR 151.242   Total suspended solids performance standard.
NR 151.243   Peak discharge performance standard.
NR 151.244   Infiltration performance standard.
NR 151.245   Protective areas performance standard.
NR 151.246   Fueling and vehicle maintenance areas performance standard.
NR 151.247   Location.
NR 151.248   Timing.
NR 151.249   Swale treatment performance standard.
NR 151.25   Developed urban area performance standard for transportation facilities.
NR 151.26   Enforcement.
Subchapter V — Technical Standards Development Process for Non-Agricultural Performance Standards
NR 151.30   Purpose.
NR 151.31   Technical standards development process.
NR 151.32   Dissemination of technical standards.
subch. I of ch. NR 151 Subchapter I — General Provisions
NR 151.001 NR 151.001Purpose. This chapter establishes runoff pollution performance standards for non-agricultural facilities and transportation facilities and performance standards and prohibitions for agricultural facilities and practices designed to achieve water quality standards as required by s. 281.16 (2) and (3), Stats. This chapter also specifies a process for the development and dissemination of department technical standards to implement the non-agricultural performance standards as required by s. 281.16 (2) (b), Stats. If these performance standards and prohibitions do not achieve water quality standards, this chapter specifies how the department may develop targeted performance standards in conformance with s. NR 151.004.
NR 151.001 History History: CR 00-027: cr. Register September 2002 No. 561, eff. 10-1-02.
NR 151.002 NR 151.002Definitions. In this chapter:
NR 151.002(1) (1)“Adequate sod, or self-sustaining vegetative cover" means maintenance of sufficient vegetation types and densities such that the physical integrity of the streambank or lakeshore is preserved. Self-sustaining vegetative cover includes grasses, forbs, sedges and duff layers of fallen leaves and woody debris.
NR 151.002(2) (2)“Agricultural facilities and practices" has the meaning given in s. 281.16 (1), Stats.
NR 151.002(3) (3)“Average annual rainfall" means a typical calendar year of precipitation as determined by the department for users of models such as SLAMM, P8, or equivalent methodology. The average annual rainfall is chosen from a department publication for the location closest to the municipality.
NR 151.002 Note Note: Information on how to access SLAMM and P8 and the average annual rainfall files for five locations in the state, as published periodically by the department, is available at dnr.wi.gov.
NR 151.002(4) (4)“Best management practices" or “BMPs" means structural or non-structural measures, practices, techniques or devices employed to avoid or minimize soil, sediment or pollutants carried in runoff to waters of the state.
NR 151.002(5) (5)“Combined sewer system" means a system for conveying both sanitary sewage and stormwater runoff.
NR 151.002(6) (6)“Connected imperviousness" means an impervious surface connected to the waters of the state via a separate storm sewer, an impervious flow path, or a minimally pervious flow path.
NR 151.002 Note Note: An example of minimally pervious flow path would be roof runoff flowing across a lawn of less than 20 feet, to the driveway, to the street, and finally to the storm sewer. The department has a guidance document to aid in the application of this term that is available from the department at dnr.wi.gov.
NR 151.002(7) (7)“Construction site" means an area upon which one or more land disturbing construction activities occur, including areas that are part of a larger common plan of development or sale where multiple separate and distinct land disturbing construction activities may be taking place at different times on different schedules but under one plan. A long-range planning document that describes separate construction projects, such as a 20-year transportation improvement plan, is not a common plan of development.
NR 151.002(8) (8)“DATCP" means the department of agriculture, trade and consumer protection.
NR 151.002(9) (9)“Department" means the department of natural resources.
NR 151.002(10) (10)“Design storm" means a hypothetical discrete rainstorm characterized by a specific duration, temporal distribution, rainfall intensity, return frequency and total depth of rainfall.
NR 151.002(11) (11)“Development" means residential, commercial, industrial or institutional land uses and associated roads.
NR 151.002(11m) (11m)“Direct conduits to groundwater" means wells, sinkholes, swallets, fractured bedrock at the surface, mine shafts, non-metallic mines, tile inlets discharging to groundwater, quarries, or depressional groundwater recharge areas over shallow fractured bedrock.
NR 151.002(12) (12)“Effective infiltration area" means the area of the infiltration system that is used to infiltrate runoff and does not include the area used for site access, berms or pretreatment.
NR 151.002(13) (13)“Erosion" means the process by which the land's surface is worn away by the action of wind, water, ice or gravity.
NR 151.002(14) (14)“Exceptional resource waters" means waters listed in s. NR 102.11.
NR 151.002(14g) (14g)“Existing development" means development in existence on October 1, 2004, or development for which a notice of intent to apply for a storm water permit in accordance with subch. III of ch. NR 216 was received by the department or the department of commerce on or before October 1, 2004.
NR 151.002(14r) (14r)“Filtering layer" means soil that has at least a 3-foot deep layer with at least 20 percent fines; or at least a 5-foot deep layer with at least 10 percent fines; or an engineered soil with an equivalent level of protection as determined by the regulatory authority for the site.
NR 151.002(15) (15)“Final stabilization" means that all land disturbing construction activities at the construction site have been completed and that a uniform perennial vegetative cover has been established with a density of at least 70% of the cover for the unpaved areas and areas not covered by permanent structures or that employ equivalent permanent stabilization measures.
NR 151.002(16) (16)“Illicit discharge" means any discharge to a municipal separate storm sewer that is not composed entirely of runoff, except discharges authorized by a WPDES permit or any other discharge not requiring a WPDES permit such as water line flushing, landscape irrigation, individual residential car washing, fire fighting and similar discharges.
NR 151.002(16m) (16m)“Impaired water" means a waterbody impaired in whole or in part and listed by the department pursuant to 33 USC 1313 (d) (1) (A) and 40 CFR 130.7, for not meeting a water quality standard, including a water quality standard for a specific substance or the waterbody's designated use.
NR 151.002 Note Note: The impaired waters list is available from the department at dnr.wi.gov.
NR 151.002(17) (17)“Impervious surface" means an area that releases as runoff all or a large portion of the precipitation that falls on it, except for frozen soil. Rooftops, sidewalks, driveways, gravel or paved parking lots, and streets are examples of surfaces that typically are impervious.
NR 151.002(18) (18)“In-fill" means an undeveloped area of land located within an existing urban sewer service area, surrounded by development or development and natural or man-made features where development cannot occur. “In-fill" does not include any undeveloped area that was part of a larger new development for which a notice of intent to apply for a storm water permit in accordance with subch. III of ch. NR 216 was required to be submitted after October 1, 2004, to the department or the department of commerce.
NR 151.002(19) (19)“Infiltration" means the entry and movement of precipitation or runoff into or through soil.
NR 151.002(20) (20)“Infiltration system" means a device or practice such as a basin, trench, rain garden or swale designed specifically to encourage infiltration, but does not include natural infiltration in pervious surfaces such as lawns, redirecting of rooftop downspouts onto lawns or minimal infiltration from practices, such as swales or road side channels designed for conveyance and pollutant removal only.
NR 151.002(22) (22)“Land disturbing construction activity" means any man-made alteration of the land surface resulting in a change in the topography or existing vegetative or non-vegetative soil cover, that may result in runoff and lead to an increase in soil erosion and movement of sediment into waters of the state. Land disturbing construction activity includes clearing and grubbing, demolition, excavating, pit trench dewatering, filling and grading activities.
NR 151.002(23) (23)“Landowner" means any person holding fee title, an easement or other interest in property, which allows the person to undertake cropping, livestock management, land disturbing construction activity or maintenance of storm water BMPs on the property.
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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.