For the purpose of this chapter, the following words and phrases shall have the meanings respectively ascribed to them by this section unless the context in which they are used specifically indicates otherwise.
BEST MANAGEMENT PRACTICES (BMPs). A practice or combination of practices and design criteria that comply with the Michigan Department of Environmental Quality's Guidebook of Best Management Practices for Michigan Watersheds, or equivalent practices and design criteria that accomplish the purposes of this chapter (including but not limited to, minimizing storm water, and preventing the discharge of pollutants into storm water), as determined by the Village Engineer and, when applicable, the standards of the Calhoun County Drain Commissioner.
DETENTION BASIN. A structure or facility, natural or artificial, that stores storm water on a temporary basis and releases it at a predetermined rate. A DETENTION BASIN may drain completely after a storm event, or it may be a pond with a fixed minimum water elevation between runoff events.
DISCHARGE. The rate of flow or volume of water passing a given point, expressed as cubic feet per second.
DISTURBED AREA. An area of land subject to the removal of vegetative cover and/or earthmoving activities.
DRAINAGE SYSTEM. All facilities, areas and structures that serve to convey, store or receive storm water, either on a temporary or permanent basis.
DRAINAGE WAY. A natural or artificial facility, area or structure that conveys or transports storm water runoff from one location to a different location.
EARTH CHANGE. Any human activity that removes ground cover, changes the slope or contours of the land, or exposes the soil surface to the actions of wind and rain. EARTH CHANGE includes, but is not limited to, any excavating, surface grading, filling, landscaping, or removal of vegetative roots.
EROSION. The removal of soil particles from the land by the action of water, wind, ice or other geological agents.
INFILTRATION. The percolation and movement of water downward into and through the soil column. The rate of this movement is expressed in inches per hour.
GRADING. Any stripping, excavating, filling and stockpiling of soil, or any combination thereof, and the land in its excavated or filled condition.
OFF-SITE FACILITY. Any potion of the storm water management system located off the development site that it serves.
ONE-HUNDRED-YEAR FLOOD. That water occupation adjacent to a body of water that results from a storm event having a 1% probability of occurrence in any given year. Thus, a 50-year storm has a 2% probability, a ten-year storm, a 10% probability, and the like.
PRIMARY DRAINAGE SYSTEM. Facilities, structures and areas that convey, store or receive runoff from storms up to a ten-year frequency.
RECEIVING BODY OF WATER. Any watercourse or wetland into which surface waters are directed, either naturally or artificially.
RESPONSIBLE PARTY. The individual, corporation or other business entity listed as owner of the property on the records filed with the Village Treasurer; the individual, corporation or other business entity whose name appears on the water bill for the property; or the individual, corporation or other business entity leasing or otherwise occupying the property.
RETENTION BASIN. A holding area for storm water, either natural or constructed, that does not have a positive outlet. Water is removed from retention basins through infiltration and/or evaporation processes, and may or may not have a permanent pool of water.
RUNOFF. The portion of precipitation that does not infiltrate or percolate into the ground, but rather moves over the land, eventually reaching a body of water, wetland or low area.
SECONDARY DRAINAGE SYSTEMS. Facilities, structures and areas that convey, store or receive runoff from storms up to a 100-year frequency without causing serious damage to adjacent properties.
SEDIMENT. Any solid particulate matter, both mineral and organic, that has been moved from the site of origin by erosion, is being transported by water, is in suspension in water, or has been deposited in a body of water, wetland or floodplain.
SITE. Any tract, lot, parcel of land. or combination of tracts, lots or parcels, that compose an area proposed for development and/or earth change.
SOIL EROSION. The stripping of soil and weathered rock from land, creating sediment for
transportation by water, wind or ice, and enabling formation of new sedimentary deposits.
STORM WATER FACILITY. Methods, structures, BMPs, areas or related items that are used to control, store, receive, infiltrate or convey runoff.
STORM WATER RUNOFF. The runoff and drainage of precipitation resulting from rainfall, snow melt or other natural event or process.
STORM WATER MANAGEMENT PLAN. Maps and written information that describe the way in which storm water will be controlled, both during and after construction.
WATERCOURSE. Any waterway or other body of water having reasonably well defined banks, including rivers, streams, creeks and brooks, whether continually or intermittently flowing; and lakes and ponds, as shown on the official maps of the Michigan Department of Natural Resources and Calhoun County Drain Commissioner.
WETLAND. Land characterized by the presence of water at a frequency and duration sufficient to support, and that under normal circumstances does support, wetland vegetation and/or aquatic life. Also known as a bog, swamp, marsh, and the like. (M.C.L.A. § 324.30301, Part 303 of NREPA, Wetlands Protection). The Michigan Department of Environmental Quality is the authority on the presence and regulatory status of wetlands.
(Ord. 2013-02, passed 9-3-2013)