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Page 1 of 7 <br /> <br /> <br /> <br />The following requirements shall be considered for the preparation of the SWPPP. The <br />requirements below are meant to serve as a general guideline and do not account for all <br />possible site conditions or situations. Additional measures may be necessary to meet the intent <br />of the City code. It is the obligation of the owner and designer to consider all factors <br />contributing to erosion and sediment control on the project site and include appropriate Best <br />Management Practices per unique site conditions. <br /> <br />1. Erosion Control Practices <br />A. The Permittee must plan for and implement appropriate construction phasing <br />vegetative buffer strips, horizontal slope grading, and other construction <br />practices to minimize erosion. All areas not to be disturbed shall be marked <br />(e.g. with flags, stakes, signs, silt fence etc.) on the project site before any work <br />begins. <br />B. All exposed soils with a continuous positive slope within 200 lineal feet of a <br />surface water shall have temporary erosion protection or permanent cover on the <br />exposed soil years round, according to the following table of time and slope. <br /> <br />Type of Slope Time <br /> <br />Steeper than 3:1 7 days <br />10:1 to 3:1 14 days <br />Flatter than 10:1 21 days <br />(Maximum amount of time <br />an area can remain exposed <br />when area is not actively <br />being worked) <br /> <br />C. Exposed soils with a continuous positive slope within 200 lineal feet of a <br />Special or Impaired Water (according to MPCA General Storm Water Permit <br />for Construction Activity) must have temporary erosion protection or permanent <br />cover on the exposed soil years round, according to the following table of time <br />and slope. <br /> <br />Type of Slope Time <br />3:1 and Steeper 3 days <br />Flatter then 3:1 7 days <br /> <br />D. The normal wetted perimeter of a temporary or permanent drainage ditch that <br />drains water for the project site or diverts water around the project must be <br />stabilized 200 lineal feet from the property edge or from a discharge point to a <br />surface water. Stabilization must occur within 24 hours of connecting to a <br />surface water. <br />E. Pipe outlet must have temporary or permanent energy dissipation within 24 <br />hours of connection to surface water. <br />LAND DISTURBANCE AND IMPLEMENTATION REQUIREMENTS PLAN