Laserfiche WebLink
development permits and plat approvals. Below are listed some existing publications <br />that contain acceptable standards and criteria: <br />Acceptable standards and criteria for erosion control <br />1. Minnesota Board of Water and Soil Resources, 1988. Minnesota <br />Construction Lion Site Erosion Control Planning Handbook <br />Minnesota Pollution Control Agency, 1989. Protecting Water Quality <br />in Urban Areas <br />b. Acceptable standards and criteria for storm water design. <br />L Minnesota Pollution Control Agency, 1989. Protecting Water Quality <br />in Urban Areas. <br />2. Wallcer, W. W., 1987. Design Calculations for Wet Detention Ponds <br />Prepared for St Paul water Utility and Vadnais Lakes Area Water <br />Management Organization. <br />Pitt, Robert E., and Voorhees, John, 1991. A Water Quality <br />Detention Pond Analysis and Design Program. <br />Subpart 3. Local governmental units may adopt and enforce unique, free <br />standing controls for erosion control and design of storm water facilities that recognize <br />local conditions, provided they are equivalent to the standards and criteria listed in the <br />publications cited in Subparts 1 and 2, above. <br />Commentary: When developing its own unique ordinance for evasion control and storm <br />water design, the local governmental unit must take cave to avoid conflicts <br />with existing laws and odes relating to wetlands protection and water quality. <br />In all cases, the goal should be to avoid or minimize increases in pre- <br />development runoff rates and discharges of nonpoint pollutants, to the greatest <br />practical extent There should also be recognition of high value downstream <br />receiving waters and note that local conditions and water quality management <br />goals may require more restrictive standards (ie. longer retention times). This <br />can most effectively be accomplished through comprehensive watershed <br />planning under the pro. visions of Minnesota Statutes 103B and 103D. <br />Attachment C is a graphic showing the percent removal of typical storm water <br />contaminants as related to retention time. This relationship of retention time <br />and efficiency of removal of pollutants should be considered when establishing <br />water quality management goals for specific individual water bodies in a <br />community. <br />8/25/93 Version 9 <br />