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Ramsey - Washington Metro <br />MAY 2 4 1990 <br />District <br />May 22, 1990 <br />Bill Chapman, AICP <br />365 East Kellogg Blvd. <br />St. Paul, MN 55101 <br />Re: Preliminary Plat, Green Value Addition <br />Little Canada <br />Dear Bill: <br />2785 White Bear Ave., Suite2lO <br />Maplewood, Mn. 55109 <br />(612)779- 2207 <br />Thank you for the submission of the preliminary plat for the Green Value Addition in Little <br />Canada. My review of the plat indicates that a Watershed District permit would be required. Our <br />other concerns are primarily for construction site erosion and sediment control. As indicated by <br />the grading plans, it appears that the entire site would not have to be altered to install the roads <br />and utilities. We would favor the installation of the road and utilities with minimal grading and <br />stabilizing the graded area with seed and mulch prior to constructon of homes. If this is not <br />possible, we would like to see rigorous erosion control practiced on the side to prohibit the export <br />of sediment off the development area. Our concerns would be primarily for the steep slope area <br />on the north and runoff to Lake Gervais from Little Canada Road. A silt fence should be <br />provided at the northerly perimeter of the graded area and a possible diversion to direct the runoff <br />away from the steep slope. There should also be some provision for erosion control and possibly <br />a temporary sediment basin at the south end of the site prior to discharge to the ditch or stow). <br />sewer at Little Canada Road_ Because of the long slope of proposed Green Valley Drive, a <br />significant amount of sediment could be generated from the site to Little Canada Road, which is <br />directly tributary to Lake Gervais. Please submit the proposed erosion control plan with the final <br />grading and storm sewer plans for the project <br />Thank you for submitting the development for our review. Please keep in mind that the district <br />meets on the first Wednesday of each month and permit applications are required two weeks prior <br />to the meeting date. I've enclosed a copy of the district permit, the erosion/sediment control <br />requirements, and the permit fee and escrow deposit requirements. If you have any questions, <br />please feel free to call me at the number above. <br />Enclosures <br />cc: Brad Lindeman <br />Page 52 <br />Sincerely, <br />CliftonU.'Aichinger <br />