10/25/2000 Env Bd Packet - Laserfiche WebLink

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• • BACKGROUND: Blue Bill Ponds is a 35.35 Ac Subdivision proposal under consideration for preliminary plating. Proposal has been submitted by Heritage Development. This subdivision proposal is immediately west of and adjacent to the Highland Meadows proposal. Blue Bill Ponds is scheduled to go to Planning and Zoning on October 13. Enclosed you will find the wetland delineation, soils map, delineated wetland maps, and Quad map, Geotechnical Conditions, and resource inventory. The site is in the MUSA and zoned R -1. Water from this property goes into county ditch 10, and Marshan Lake. The property has been ditched and tiled. There is no significant ground vegetation on the site. Trees on the West are classified as recently developed in degraded condition (3c). Trees on the East are classified as Historic Oak Savanna (3d) and recently developed forest in degraded condition (3c). This stand of trees is on the Highland Meadows property. However, the draft resource management plan calls for a buffer in this area. The 50 -foot buffer would be adequate, particularly on the north end of this stand. A tree preservation plan needs to be submitted even though trees are on adjacent property. I do not have a surface water management budget at this time. I have asked the City Planner to have a representative to be present at the meeting and bring information on how much water is calculated as runoff and where is it going. Again, buffering, filtering, bioretention soils management and native plant restoration should be addressed. OPTIONS: Several options may be feasible for improvement of the stormwater treatment train. Buffering/ or at this time at least a protection plan developed for 3d classification. Preservation Plan should also be submitted for 3c and 3d /3c classifications. RECOMMENDATION: Implement preservation guidelines for forest classes. Discuss and develop stormwater treatment options. Use of native restorative materials used in restoration. • Page 5