02/23/2005 Env Bd Packet - Laserfiche WebLink

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• • Soils and NPDES Soils on the proposed development site are for the most part fine sand and Lake Beach along the Iakeshore. No soils should be imported or exported without City approval. Soils must be protected from compaction and restored if development process changes the soil density. Suggest fencing around the new surface -water treatment areas once established. The preliminary grade plan describes a rock entrance. This rock entrance should be specified as a minimum of 50 -feet. It is suggested to have additional stockpile of rock on hand to top -dress rock entrance as rock entrance becomes filled. Additional notes include conformance to MPCA- NPDES Best Management Practices. This should include an indication from the developer where he will keep his NPDES Plan on site, and where the NPDES inspection sheets will be located. Landscaping A Landscape Plan is included as attachment 11. Several Black Hills Spruce and Red Pine are proposed for screening along Lake Drive. These species will not do well if they are planted in wet areas. Areas in water swales should substitute a plant like Northern White Cedar. If screening is desired along property lines, a detail of this should be submitted. A description of infiltration ponds is given. A more detailed landscape plan should be submitted should be submitted detailing number of plants and type. It is recommended to change species to native, site appropriate species. Groundscaping for the infiltration /pond areas should use a low- profile seed mixture composed of the Cities Native seed mix. A buffer of 10 feet from each property sod area should have a Blue gramma/ low flower seed mix. An erosion control fabric that allows for plant growth should be used in this area. .No cutting of materials is allowed along the shore. Public Education A handout should be given to all property owners describing area nature and treatment features. The education handout should encourage aquascape buffers, and where to go for help on aquascape landscape planning. The handout should also describe wetland and treatment -area signs. Greenways A Greenway corridor with trail was initially (1992) planned to go around the lake between the lake and houses around the lake. This was changed several years ago when the council resolved that there would not be a trail located in this position. Thus the trail will follow the road and eventually hook up back on Lake Env. Bd. Mtg. 1/26/05 Page 4 Item 5B