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Section 02210 Erosion and Sediment Controls <br />PART 1 — GENERAL <br />1.1 SECTION INCLUDES <br />A. Furnishing, installing, maintaining, and removing temporary facilities as needed to <br />minimize erosion, to divert stormwater runoff away from disturbed areas, and to retain <br />sediment from small disturbed areas where stormwater runoff cannot be directed away <br />from potential bodies of water. <br />1.2 DEFINITIONS <br />A. Best Management Practices (BMPs): Measures for stabilization, sediment and erosion <br />control, and storm water management, which can generally be broken down into two <br />categories: structural and non-structural. Examples of non-structural BMPs including <br />minimizing removal of established vegetation, good housekeeping, preventative <br />maintenance, management of runoff, employee training, record keeping and reporting, <br />and visual inspections. Examples of structural BMPs are ground cover and vegetation, <br />detention ponds, silt fence, earth berms, Triangular Silt Dike m, and turf reinforcement <br />mats. <br />B. Silt Fence: A temporary sediment barrier consisting of geotextile which is stretched <br />across and supported by posts, and buried along the bottom. <br />C. Temporary Diversion: A combination dike and ditch, constructed upslope of disturbed <br />areas to divert run-on, and across the base of disturbed areas to collect sediment -laden <br />runoff and convey runoff to sediment traps. <br />D. Level Spreader: A non-erosive outlet constructed to disperse concentrated run on flow to <br />sheet flow, and distribute flow uniformly over a stabilized area. <br />E. Sediment Trap: A small, temporary ponding basin formed by an embankment or <br />excavation to capture sediment, with a gravel outlet; used to trap sediment from drainage <br />areas 3 acres or smaller in size. <br />F. Sediment Basin: A temporary ponding basin formed by constructing an embankment of <br />compacted soil, with a controlled stormwater release structure; used to trap sediment <br />from drainage areas 10 acres or small in size. <br />PART 2 — PRODUCTS <br />2.1 SILT FENCE GEOTEXTILE <br />A. Type: Synthetic filter fabric or pervious sheets of polypropylene, nylon, polyester, or <br />polyethylene yarn, recommended by the manufacturer for use in silt fence applications. <br />Erosion and Sediment Controls February 2017 02210-1 <br />