07-22-1985 Council Packet - Laserfiche WebLink

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Zoning File #852 July 19, 1985 Page 4 2. Assimilative Capacity of Each Wetland - discussed above refer to - Nutrient Quality Analysis (Exhibit I). Once again no significant effect. 3. Time of Year - Alteration of wildlife pond to be performed in winter of 85/86. Decorative pond, channel, outlet summer of 85'. All of the reviewing bodies approve scheduling. 4. Stagnant Water Potential - the flow of drainage or runoff to lake is more controlled with outlet - the maximum depth of both ponds appear to be at 4' +/- - the potential for stagnant water would be lessened with alteration. 5. Aigae Control - 50' wide vegetation buffer and skimmer at wildlife pond - formal pond to be aerated - also vegetation in channel will filter drainage to wildlife pond. 6. Design Configuration of Alteration - formal pond - 801x80' will have steep side slopes and stabilized by using 12 inches of heavy clay packed against natural soil. Approves: by City Engineer. Wildlife pond - varied 7-1 to 3-1 slopes for wildlife pond approved by DNR. 7. Monitoring Procedures - applicants agree to allow qualified agent of City to monitor pond after construction. Staff z,.iggest the following: 1. Special fees to cover Orono staff inspection during contrac- tion period. 2. Special agreemeDt between owner and City (Developer's Agree- ment) to have an outsiue agency hired to make annual inspections per scheduled approval by City. Please node Dr. Hanson has specifically requested the right to enter property for monitoring purposes. Water Quantity 1. Design storm return frequency (100 year). To my knowledge this has not been covered in the review. 2. Overflow control device - skimmer has been approved by both MCWD, U.S. Soils Office and City Engineer. 3. Watershed characteristics - discussed above. 4. Retention time - not addressed in applicant's information.