04/24/2013 Env Bd Packet - Laserfiche WebLink

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• .40 • The development is required to meet both water quality and volume regulations consistent with RCWD and City requirements. A watershed district permit is required for development on this site. Preliminary review by our engineering firm WSB indicates that the Hydrocad calculations for the site filtration/infiltration ponds are correct. The plat area lies within the Clearwater Creek Resource Management Unit. Clearwater Creek is impaired for biota, but flows to Peltier Lake that is impaired for Nutrients. A two celled pond approach is depicted in the drawings. There are adjacent filtration areas. Nutrient runoff controls are built into the RMP -3 rule for upland areas. The Storm Water Pollution Prevention Plan (SWPPP) is on several detail sheets, and details SWPPP at sequential levels, and is fairly site specific. One of the items that needs to be addressed is the SWPPP manager; that is the person who will be performing the site inspections on a weekly basis and post Y2 inch rainfall events is not indicated on the plan. The City needs to have this person's name, credentials to perform stormwater /erosion control inspections, and phone numbers to contact this person 24 hours per day, seven days per week. We also need to have the location of a site rain gauge, and the on site location of the SWPPP, inspection sheets, and follow -up correction sheets. Wetlands Wetland areas on the plat total 2.01 acres. No wetland impacts are proposed. Wetland buffers are shown on the plan. Wetlands that are not located in a RMP3 wetland preservation corridor are not subject to buffers and signing. The city rule would than apply which is a 10 foot buffer. The developer is showing 25 foot buffers. Lighting Light spillage around the perimeter "zero's -out" on the property line. Code states it should not exceed .04 lumens at the property line. Security lighting is energy efficient LED. All fixtures are recessed, cut -off style to eliminate direct glare impacts. An example of lighting fixtures is attached. Landscape Plan City Planning will verify plant numbers in relationship to zoning code requirements. Planting specifications are included in the Landscape Detail Sheets. The specifications are right out of MNDOT Landscape Specifications Requirements which set the industry standard. All of the plant materials are acceptable and appropriate for the site. The trees meet our 2.0 -2.5 inch in diameter size requirement.