06-12-2002 Council Agenda - Laserfiche WebLink

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3.012 Buffer A protective vegetated zone located adjacent to a natural resource, such as a water of the state, that is subject to direct or indirect human alteration. Such a buffer strip is an integral part of protecting an aquatic ecosystem through filtering, pollutants and providing adjacent habitat. The width of a buffer strip is the width along each bank of a stream. Therefore a 30 foot wide stream with 100 foot buffer strips has a total width of 230 feet. Acceptable buffer vegetation includes preserving existing predevelopment vegetation and /or planting locally distributed native Minnesota trees, shrubs and grassy vegetation. Alteration of buffers is strictly limited. Buffer areas are designated with permanent markers. (Commentary: These permanent markers can be in a form that compliments the natural landscape. An example is permanent sighs that face toward the water body, that are attached to large artificial or natural bounders. A guide of what plant species not to plan is found in the Minnesota Department of Natural Resources' Minnesota Rules chapter 6216's list of exotic prohibited, regulated, unlisted and unregulated plant species.) 3.013 Developer A person, firm, corporation, sole proprietorship, partnership, state agency, or political subdivision thereof engaged in a land disturbance activity. 3.014 Discharge The release, conveyance, channeling, runoff, or drainage, of storm water, including snowmelt, from a construction site. 3.015 Energy Dissipation This refers to methods employed at pipe outlets to prevent erosion. Examples include, but are not limited to; aprons, riprap, splash pads, and gabions that are designed to prevent erosion. 3.016 Erosion Any process that wears away the surface of the land by the action of water, wind, ice, or gravity. Erosion can be accelerated by the activities of people and nature. 3.017 Erosion Control Refers to methods employed to prevent erosion. Examples include soil stabilization practices, horizontal slope grading, temporary or permanent cover, and construction phasing. 3.018 Erosion and Sediment Practice Specifications or Practice The management procedures, techniques, and methods to control soil erosion and sedimentation as officially adopted by either the state, county, city or local watershed group, whichever is more stringent. 3.019 Exposed Soil Areas All areas of the construction site where the vegetation (trees, shrubs, brush, grasses, etc.) or impervious surface has been removed, thus rendering the soil more prone to erosion. This includes topsoil stockpile areas, borrow areas and disposal areas within the construction site. It does not include stockpiles or surcharge areas of gravel, concrete or bituminous. Once soil is exposed it is considered "exposed soil," until it meets the definition of "final stabilization."