04/28/2010 Env Bd Packet - Laserfiche WebLink

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DRAFT 4 -28 -2010 unpaved areas and areas not covered by permanent structures, or equivalent permanent stabilization measures. Permanent cover does not include the practices listed under temporary stabilization. (12) "Permittee" means a person or persons, firm, or governmental agency or other institution that signs the application submitted to the MPCA and is responsible for compliance with the terms and conditions of this permit. (13) "Saturated Soil" means the highest seasonal elevation in the soil that is in a reduced chemical state because of soil voids being filled with water. Saturated soil is evidenced by the presence of redoximorphic features or other information. (14) "Sediment Control" means methods employed to prevent sediment from leaving the site. Sediment control practices include silt fences, sediment traps, earth dikes, drainage swales, check dams, subsurface drains, pipe slope drains, storm drain inlet protection, and temporary or permanent sedimentation basins. (15) "Small Construction Activity" means small construction activity as defined in 40 C.F.R. part 122.26(b)(15). Small construction activities include clearing, grading, and excavating that result in land disturbance of equal to or greater than one acre and less than five acres. Small construction activity includes the disturbance of less than one acre of total land area that is part of a larger common plan of development or sale if the larger common plan will ultimately disturb equal to or greater than one and less than five acres. (16) "Stabilized" means the exposed ground surface has been covered by appropriate materials such as mulch, staked sod, riprap, erosion control blanket, mats or other material that prevents erosion from occurring. Applying mulch, hydromulch, tackifier, polyacrylamide, or similar erosion prevention practices is not acceptable stabilization in temporary or permanent drainage ditches or areas where concentrated overland flow occurs. Grass seeding is not stabilization. (17) "Standard Plates" means general drawings having or showing similar characteristics or qualities that are representative of a construction activity or practice. (18) "Storm Water" is defined under Minn R. 7077.0105, subp. 41(b) and includes precipitation runoff, storm water runoff, snowmelt runoff, and any other surface runoff and drainage. (19) "Storm Water Pollution Prevention Plan" means a plan for storm water discharge that includes erosion prevention measures, sediment controls and Permanent Storm Water Management Systems that, when implemented, will decrease soil erosion on a parcel of land and decrease off -site nonpoint pollution. (20) "Surface Water or Waters" means all streams, lakes, ponds, marshes, wetlands, reservoirs, springs, rivers, drainage systems, waterways, watercourses, and irrigation systems whether natural or artificial, public or private. 6 • • •