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Zoning File 1852 <br />July 9, 1985 <br />Page 3 <br />A skinuner has been provided at outlet to remove debris prior to dis­ <br />charge to Brown's Bay. The proposed pond satisfies the wildlife <br />constuction standards of the DNR - varied bank slope ratios of 7:1 to <br />3:1 with island areas in midst of open water. <br />The upper watershed that drains into this 2.69 acre wetland (see <br />Exhibit H) consists of approximately 140 +/- acres developed at 2 acre <br />rural standards. There is approximately 23 +/- acres of upland wet­ <br />lands within that watershed. The upland wetlands appear to be equally <br />divided between shrub swamp (type 6) and cattail sedge (type 3). Note <br />once again. Dr. Hanson's comments concerning the positive effects of <br />open water areas within wetlands. <br />Review of Issues to be Addressed by City: <br />Water Quality <br />1. Type of Wetlands 2.69 acres - major portions type 3 other type 6 - <br />only open water .07 acres is on railroad right-of-way. Applicant <br />proposes conversion of type 3 to type 5 - open water area of approxi ­ <br />mately 1.3 acres with island areas included. Settlers & Hanson claim <br />no appreciable effects. <br />2. Assimilative Capacity of Each Wetland - discussed above refer to - <br />Nutrient Quality Analysis (Exhibit I). Once again no significant <br />effect. <br />3. Time of Year - Alteration of wildlife pond to be performed in <br />winter of 85/86. Decorative pond, channel, outlet summer of 85'. All <br />of the reviewing bodies approve scheduling. <br />4. Stagnant Water Potentia l - the flow of drainage or runoff to lake <br />is more controlled with outlet - the maximum depth of both ponds <br />appear to be at 4' +/- - the potential for stagnant water would be <br />lessened with alteration. <br />5. Algae Control - 50' wide vegetation buffer and skinuner at wildlife <br />pond - formal pond to be aerated - also vegetation in channel will <br />filter drainage to wildlife pond. <br />6. Design Configuration of Alteration - formal pond - 80'x80' will <br />have steep side slopes and stabilized by using 12 inches of heavy clay <br />packed against natural soil. Approved by City Engineer. <br />Wildlife pond - varied 7-1 to 3-1 slopes for wild.ife pond approved by <br />DNR. <br />7. Monitoring Procedures - applicants agree to allow qualified agent <br />of City to monitor pond after construction. <br />II <br />J