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Mass Ratio - When used on a Building Type Template, the percentages listed in the Mass table defines the maximum area allowed in
<br />the horizontal projection of one floor in relation to the area of horizontal projection of the building footprint and attached garage.
<br />Mean - the mid -point of two extremes.
<br />Mobile Home - Any type of structure or vehicle which can be readily adapted to or does provide facilities for a person or persons to eat
<br />or sleep which is mounted on wheels, has provisions for wheels or may be loaded on any ordinary flat-bed truck, such as a camper,
<br />house trailer, converted bus or truck, tent or small building.
<br />Motor Service Station - A place where gasoline, kerosene or any other motor fuel or lubricating oil or grease for operating motor
<br />vehicles is offered for sale to the public and deliveries are made directly into motor vehicles.
<br />MPCA General Construction Permit - General Permit Authorization to Discharge Stormwater Associated with Construction Activity
<br />under the National Pollutant Discharge Elimination System/State Disposal System Permit Program Permit MN R100001 (NPDES
<br />General Construction Permit) issued by the Minnesota Pollutant Control Agency, August 1, 2008, and as amended.
<br />Municipal Separate Storm Sewer System (MS4) - The system of conveyances (including sidewalks, roads with drainage systems,
<br />municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains) owned and operated by the City of Gem
<br />Lake and designed or used for collecting or conveying storm water, and that is not used for collecting or conveying sewage.
<br />Mural - A picture on the exterior surface of a structure. A mural is only a sign for purposes of these regulations if it is related by
<br />language, logo or pictorial depiction to the advertisement of any product or service or the identification of any business.
<br />National Pollutant Discharge Elimination System (NPDES) - means the program for issuing, modifying, revoking, reissuing,
<br />terminating, monitoring, and enforcing permits under the Clean Water Act (Sections 301, 318, 402, and 405) and United States Code of
<br />Federal Regulations Title 33, Sections 1317, 1328, 1342, and 1345 and Minnesota Rule Chapter 7090.
<br />National Pollutant Discharge Elimination System (NPDES) Storm Water Discharge Permit - A permit issued by EPA (or by a
<br />State under authority delegated pursuant to 33 USC § 1342(b)) that authorizes the discharge of pollutants to waters of the United
<br />States, whether the permit is applicable on an individual, group, or general area -wide basis.
<br />Natural Barrier - Screening provided by a tree or shrubbery barrier that acts as a visual or noise barrier from roads, railroads and
<br />differing land uses, said barrier not to exceed thirty (30') feet in barrier depth. When a Natural Barrier is part of a Woodland, the
<br />Natural Barrier shall be considered the first thirty (30') feet of the Woodland.
<br />Non -Degradation - Section 303 (Title 33 of United States Code [U.S.C.] 1313) of the Clean Water Act (CWA) requires states and
<br />authorized tribes to adopt water quality standards for waters of the U.S. within their applicable jurisdictions to maintain their chemical,
<br />physical and biological integrity. No significant increase in stormwater runoff or pollutant loads from 2005/2006 numerical standards
<br />is permitted.
<br />Non -Point Source - Nutrient and pollution sources not discharged from a single point e.g. Runoff from agricultural fields, feedlots or
<br />urban landscapes.
<br />Non -Storm Water Discharge - Any discharge to the storm drain system that is not composed entirely of storm water.
<br />Normal Water Level - For a reservoir with a fixed overflow, means the lowest crest level of that overflow. For a reservoir whose
<br />outflow is controlled wholly or partly by movable gates, siphons or other means, it is the maximum level to which water may rise under
<br />normal operating conditions, exclusive of any provision for flood surcharge. For a closed depression wetland, it is the maximum level
<br />to which the water may rise under normal precipitation conditions exclusive of any provision for flood surcharge.
<br />Noxious Material(s) - Material capable of causing injury to living organisms by chemical reaction, or is capable of causing detrimental
<br />effects on the physical or economic well-being of individuals. NURP — The Nationwide Urban Runoff Program developed by the
<br />Environmental Protection Agency to study stormwater runoff from urban development.
<br />Offices - Structures, or portions of structures, in which commercial activities take place but where goods are not produced, sold or
<br />repaired. These include: Banks, general offices, governmental offices, insurance offices, real estate offices, travel agency or
<br />transportation ticket offices, telephone exchange, utility office, professional offices and similar uses which are operated by the owner or
<br />his tenants.
<br />Office, Showroom - A building in which at least twenty (20%) percent of the floor space is devoted to office activities, the remainder
<br />being used for either display, storage, or research and testing.
<br />Appendix A' Gem Lake Consolidated Land Use Ordinance Definitions Updated 1011912023 Page 9
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