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zoning File 11216 October 13, 1987 Page 2 of 2 The applicant wants to clrcdge the pond so that there is standing water a t a l l t i rn es • The we t Jc, n d i s pre d o rn i n a t e l y dry w i th ca t ta i l s -the alteration involves 2si of the pond area. Per the Engineer's report, Exhibit E, the dre~ging will slightly reduce the assirnulative capacity of the marsh. The proposed depth will reduce alge growth and pond odors. The Engineer sees no lonq term adverse effects on Lake Minneto~ka as a result of this project becau·se of the minimal scope of the project. The project will result in increase s0climcntation capacity and wildlife habitat. Prior to making ci recommendation on this application, Planning Commission should consider the necessary findings that must be made privr to making your recommendation whether it be for denial or approval - Section 10.55, Subdivision 25 (1\), Items 1-7. If approved your conditions should include the following: 1. Applicant to provide silt fencing near the pond outlet. 2. HaulLig cannot take place on week-ends and may only be co:1ducted Monday tht:.,ugh Friday, 7:30 a.m. to 4:30 p.m. City must be advised in writing if it is necessary to haul on Saturdays. 3. The liability issue should be r~viewed by applicant since the creation of a 12 f e,::-t. d cep pond wi 11 create a potentia 1 hazard. Additional Comments 3Dd Planning Commission Recommendation - October 30, 1987 The Planning Commission questioned the classification of a pond of this size as a protected wetland. Staff advised that cattails or vegetatirn did provide assimulative treatment of run-off to the pond /serving 4+ acre watershed). Currently, the elevation of the culvert to the east side of the pond allows lake water to flow into pond when lake reaches an elevation of 929+. The raising of the culvert and the increased depth of the pond will ~llow greater retention for run-off from the watershed and the untouched vegetation (75% of pond area) will still provide adequate treatment for this sized watershed. Planning Commission approved of the dredging application but questioned staff's concern for the liability of the application with a pond now at a 12 feet depth. Pl~11ning Commission felt that this is the same issue for the owner who installs a pool. The insurance carrier of the owner shall advise applicant of his liability if any. The enclosed resolution has been drafted per Planning Commission recommendation.