§ 156.03 DEFINITIONS. 
   All of the purposes and rules of interpretation stated in the Garrett County Subdivision Ordinance, as amended, are included by reference. In addition, for the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   BUILDING. A combination of materials having walls and a roof to form a structure for the shelter of persons, animals or property. Decks and porches that do not include solid walls or roofs shall not be considered part of a building for the purposes of this chapter.
   DEVELOPMENT. Any activity, other than normal crop farming and forestry activities, but including grading of roads for forestry, which materially affects the existing condition or use of any land or structure. This shall include, but not be limited to the erection of structures, the placement of mobile homes, the improvements of roads and other paving, and the filling or grading of land.
   GRADING. Cutting or otherwise distributing the soil mantle by mechanical means so as to permanently change the contours of the land.
   HAZARDOUS SUBSTANCE. Any substance, including oil or its by-products, that:
      (1)   Conveys toxic, lethal, or other injurious effects or which causes sublethal harmful alterations to plant, animal, or aquatic life;
      (2)   May be injurious to human beings;
      (3)   Persists in the environment; and
      (4)   Any matter identified as a “hazardous waste” by the Environmental Protection Agency or a “controlled hazardous substance” by the Maryland Department of the Environment. For the purposes of this section, excluding propane and natural gas.
   IMPERVIOUS SURFACE COVERAGE. Land area covered with a surface that is impervious to water.
   PRINCIPAL BUILDING. A building occupied, or intended to be occupied by, the primary use of the lot, as opposed to the accessory or subordinate use.
   SITE PLAN. A plan showing the proposed development of a lot or parcel. A site plan shows existing and proposed natural features, grading and contours, structures, road rights-of-way, paved and stone areas, driveways, parking spaces, walkways, vegetative cover, landscaping, and stormwater management.
   SLOPE. The incline of land, measured by dividing the vertical increase in elevation by the horizontal distance. For example, a 30 feet increase in elevation over a 100 feet length would be a 30% slope.
   SOURCE WATER PROTECTION AREA (SWPA). An area overlying an aquifer which contributes water to a community or municipal water supply well or spring. The source water protection areas are shown on the Sensitive Areas Map 1. Their boundaries are based on the Maryland Department of the Environment Source Water Assessments, as delineated by the 2007 Garrett County Source Water Protection Plan.
   STAFF. Designated staff-persons of the Garrett County Department of Planning and Land Development, or its successor agency.
   STREAM. A river, creek, stream, run or major drainageway that the “Generalized Sensitive Areas Map 1” designates as a STREAM.
(Ord. —, passed 6-24-1997, eff. 7-1-1997; Am. Res. 2010-6, passed 5-25-2010)