Village of River Hills
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Chapter 6 Section 5


(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.

(2)      “Administering Authority” means the governmental employee empowered under Chapters. 61.354 and 62.234 Wis. Stats., designated by the Village of River Hills to administer this ordinance.

(3)       “Agricultural facilities and practices” has the meaning given in s. 281.16(1), Wis. Stats.

(4)        “Applicant” means any landowner, their agent, or contractor responsible for submitting and carrying out the requirements of this ordinance.  Applicant shall also mean any subsequent landowner to whom this ordinance applies.

(4)        “Atlas 14” means the National Oceanic and Atmospheric Administration (NOAA) Atlas 14 Precipitation-Frequency Atlas of the United States, Volume 8 (Midwestern States), published in 2013.

(5)        “Average annual rainfall” means a typical calendar year of precipitation as determined by the Wisconsin Department of Natural Resources for users of models such as WinSLAMM, P8 or equivalent methodology.  The average annual rainfall is chosen from a department publication for the location closest to the municipality.

(6)       “Best Management Practice” or “ABMP” means a structural or non-structural measures, practices, techniques or devices employed to avoid or minimize sediment or pollutants carried in runoff to waters of the State.

(7)        “Cease and desist order” means a court-issued order to halt land disturbing construction activity that is being conducted without the required permit or in violation of a permit issued by the Village.

(8)        “Combined sewer system” means a system for conveying both sanitary sewage and storm water runoff.

(9)       “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.

(10)      “Design storm” means a hypothetical discrete rainstorm characterized by a specific duration, temporal distribution, rainfall intensity, return frequency and total depth of rainfall.

(11)      “Development” means residential, commercial, industrial or institutional land uses and associated roads.

(12)      “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.

(13)      “Division of land” means the creation from one parcel of two or more parcels, or building sites where such creation occurs at one time or through the successive partition within a 5-year period.

(14)      “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.

(15)      “Erosion” means the process by which the land’s surface is worn away by the action of wind, water, ice or gravity.

(16)      “Exceptional resource waters” means waters listed in s. NR102.11, Wis. Adm. Code.

(17)      “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 fins; or an engineered soil with an equivalent level of protection as determined by the regulatory authority for the site.

(18)      “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.

(19)      “Financial guarantee” means a performance bond, maintenance bond, surety bond, irrevocable letter of credit or similar guarantees submitted to the Village of River Hills by the responsible party to assure that requirements of the ordinance are carried out in compliance with the storm water management plan.

(20)     “Governing body” means the River Hills Village Board.

(21)     “Hydrologic soil group” means a group of soils having similar runoff.

(22)      “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 areas that are typically impervious.

(23)      “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.

(24)      “Infiltration” means the entry of precipitation or runoff into or through the soil.

(25)      “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.

(26)      “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.

(27)      “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.

(28)      “Maintenance Agreement” means a legal document that provides for long-term maintenance of storm water management practices.

(29)      “Maximum extent practicable” means the highest level of performance that is achievable but is not equivalent to a performance standard identified in this ordinance as determined in accordance with S. 6.05.5 of this ordinance.

(30)      “New development” means development resulting from the conversion of previously undeveloped land or agricultural land uses.

(31)      “NRCS MSE3 or MSE4 distribution” means a specific precipitation distribution developed by the United States Department of Agriculture, Natural resources Conservation Service, using precipitation data from Atlas 14.

(32)      “Off-site” means located outside the property boundary described in the permit application.

(33)     “On-site” means located within the property boundary described in the permit application.

(34)   “Ordinary high-water mark” has the meaning given in s. NR 115.03(6), Wis. Adm. Code.

(35)      “Outstanding resource waters” means waters listed in s. NR 102.10, Wis. Adm. Code.

(36)   “Percent fines” means the percentage of a given sample of soil, which passes through a #200 sieve.

(37)   “Performance standard” means a narrative or measurable number specifying the minimum acceptable outcome for a facility or practice.

(38)      “Permit” means a written authorization made by the Village of River Hills to the applicant to conduct land disturbing construction activity or to discharge post-construction runoff to waters of the State.

(39)       “Permit administration fee” means a sum of money paid to the Village of River Hills by the permit applicant for the purpose of recouping the expenses incurred by the Village in administering the permit.

(40)      “Pervious surface” means an area that releases as runoff a small portion of the precipitation that falls on it.  Lawns, gardens parks, forests or other similar vegetated areas are examples of surfaces that typically are pervious.

(41)      “Pollutant” has the meaning in s. 283.01(13), Stats.

(42)      “Pollution” has the meaning in s. 281.01(10), Stats.

(43)      “Post-construction site” means a construction site following the completion of land disturbing construction activity and final site stabilization.

(44)      “Pre-development condition” means the extent and distribution of land cover types before the initiation of land disturbing construction activity, assuming that all land uses prior development activity are managed in an environmentally sound manner.

(45)       “Preventive action limit” has the meaning in s. NR 140.05(17), Wis. Adm. Code.

(46)     “Protective area” means an area of land that commences at the top of the channel of lakes, streams and rivers, or at the delineated boundary of wetlands, and that is the greatest of the following widths, as measured horizontally from the top of the channel or delineated wetland boundary to the closest impervious surface.

(47)      “Redevelopment” means areas where development is replacing older development.

(48)      “Responsible party” means the landowner or any other entity performing services to meet the requirements of this ordinance through a contract or other agreement.

(49)      “Runoff” means storm water or precipitation including rain, snow or ice melt or similar water that moves on the land surface via sheet or channelized flow.

(50)      “Separate storm sewer” means a conveyance or system of conveyances including roads with drainage systems, streets, catch basins, curbs, gutters, ditches, constructed channels or storm drains, which meets all of the following criteria:

[a]        Is designed or used for collecting water or conveying runoff.

[b]        Is not part of a combined sewer system.

[c]        Is not part of a publicly owned wastewater treatment works that provides secondary or more stringent treatment.

[d]       Discharges directly or indirectly to waters of the State.

(51)      “Silviculture activity” means activities including tree nursery operations, tree harvesting operations, reforestation, tree thinning, prescribed burning, and pest and fire control.  Clearing and grubbing of an area of a construction site is not a silviculture activity.

(52)      “Site” means the entire area included in the legal description of the land on which the land disturbing construction activity occurred.

(53)      “Stop work order” means an order issued by the Village of River Hills which requires that all construction activity on the site be stopped.

(54)      “Storm Water Management [email protected] means a comprehensive plan designed to reduce the discharge of pollutants from storm water, after the site has under gone final stabilization, following completion of the construction activity.

(55)      “Storm water Management System Plan” is a comprehensive plan designed to reduce the discharge of runoff and pollutants from hydrologic units on a regional or municipal scale.

(56)      “Technical standard” means a document that specifies design, predicted performance and operation and maintenance specifications for a material, device or method.

(57)      “Top of the Channel” means an edge, or point on the landscape landward from the ordinary high-water mark of a surface water of the State, where the slope of the land begins to be less than 12 percent continually for at least 50 feet.  If the slope of the land is 12 percent or less continually for the initial 50 feet landward from the ordinary high-water mark, the top of the channel is the ordinary high-water mark.

(58)     “Total Maximum Daily Load” or “TMDL” means the amount of pollutants specified as a function of one or more water quality parameters, that can b discharged per day into a water quality limited segment and still ensure attainment of the applicable water quality standard.

(59)       “TR-55” means the United States Department of Agriculture, Natural Resources Conservation Service (previously Soil Conservation Service), Urban Hydrology for Small Watersheds, Second Edition, Technical Release 55, June 1986, which is incorporated by reference for this chapter.

(60)      “Transportation facility” means a highway, a railroad, a public mass transit facility, a public-use airport, a public trail or any other public work for transportation purposes such as harbor improvements under s. 85.095(1)(b), Wis. Stats.  ATransportation [email protected] does not include building sites for the construction of public buildings and buildings that are places of employment that are regulated by the Department pursuant to s. 281.33, Wis. Stats.

(61)      “TSS” means total suspended solids.

(62)      “Type II Distribution” means a rainfall type curve as established in the “United States Department of Agriculture, Soil Conservation Service, Technical Paper 149, published in 1973”.

(63)     “Waters of the State” includes those portions of Lake Michigan and Lake Superior within the boundaries of this State, and all lakes, bays, rivers, streams, springs, ponds, wells, impounding reservoirs, marshes, watercourses, drainage systems and other surface water or groundwater, natural or artificial, public or private, within this State or its jurisdiction.

(64)      “Village” or “the Village” means the Village of River Hills and its authorized personnel.