Laserfiche WebLink
STORMWATER MANAGEMENT PLAN (SWMP) <br />_ AND EROSION AND SEDIMENT CONTROL REPORT <br />~` FOR <br />~ ` ST. VRAIN LAKE GRADING IMPROVEMENT PLANS <br />1' Page 9 <br />~, <br />Tt <br />1 ` All structural practices will be inspected once every 14 days and after every <br />precipitation event. Upon discovery, any degradation of structures described in <br />the plan or excessive accumulation of sediments will be remedied within 48 <br />' ' hours. <br />` A. Erosion and Sediment Controls <br />i~ <br />., Erosion and sediment control BMPs will be used to minimize the amount of <br />soil transported to receiving waters and/or wetlands from areas disturbed as <br />a result of construction activities. BMPs may be classified as: <br />., <br />j Temporary (operative during construction) <br />1 Permanent (continuing after construction) <br />_, <br />• Structural (e.g. silt fences, swales, ponds, sediment traps, surface <br />~ grading, storm sewers, drainageways (including roads), etc.) <br />;I <br />• Non-structural (e.g. limiting disturbed areas, timing projects to avoid <br />~' heavy precipitation, soil stabilization, mulching, street sweeping, <br />- } maintaining buffer zones, education and outreach to production staff <br />and sub-contractors on erosion and sediment control practices, good <br />housekeeping, and other SWMP provisions, etc.) <br />.; <br />Four basic approaches are used for controlling erosion from storm water <br />runoff in construction areas: <br />., <br />1. Stages of construction that disturb surtace soil are sequenced to <br />minimize the amount of time during which soil is exposed to potential <br />erosion conditions. <br />2. Temporary re-vegetation, or surface roughening and mulching is used if <br />~ ~ construction areas must remain bare for periods of time long enough to <br />_ pose a potential erosion threat. <br />~, <br />~, <br />