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Ordinance 602 • July 14, 1997 Page 3 b. Repairs: Upon application and approval by the City Council, a person may repair or maintain any lawful use of land existing on the effective date hereof. c. Recreation Areas or Parks: Notwithstanding any other provision of this Code to the contrary, a person may develop a Municipally-owned recreation area or park facility on City-owned lands which will involve the development within a wetland zoning district as part of an integrated plan, comprising not less than seventy five (75) acres, where such development would reasonably conserve, preserve and enhance the environment by providing facilities that would protect the public health, safety and welfare. Subd. 4. Standards for Approval of Permits: No permit shall be issued unless the City finds and determines that the proposed development complies with the following standards • • • . . • •. ' • • •• : :.:' • . • . Approval of either a wetland alteration permit or wetland buffer permit shall constitute approval of a variance to the requirements of this Chapter 1010. a. Minimum Alteration in Ecological and Hydrological Characteristics: A minimum alteration of a wetland may be allowed when necessary for the use of property but only • when it will not have a substantially or significantly adverse effect, as determined by the City, upon the ecological and hydrological characteristics of the wetland. However, in no case shall the restrictions set out below in Section 1010.08 Subd. 3.a.(1)-(6)be exceeded. Since the extent of alteration which can be permitted is limited, the City, when considering a permit application, shall consider equal apportionment of alteration opportunity. The alteration opportunity within the wetland shall be allocated among property owners in proportion to the area of wetland located within each property. (1) Any alteration shall not cause a reduction in the flood storage capacity of the wetland:Flood storage-capacity-shalt be-deterrnined-by-analysis-ofthe-run-offfronrthe entire developed wetland drainage district resulting from both the 2-year and 100-year frequency, 24-hour SCS Type I distribution storms. (2) An alteration shall not reduce the existing water quality enhancement value of a wetland under conditions of ultimate development, during both the 2-year and 100-year frequency, 24-hour SCS Type I distribution storms. Water quality enhancement value of a wetland shall be determined using methods approved by the City. (3) Any alteration shall not reduce the existing wildlife habitat value of a wetland as measured using methods approved by the City. (4)(5) Alterations shall be carried out so as to minimize the impact on vegetation. •