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7 CSMP STORMWATER MANAGEMENT <br />7.1 Regional BMP Capacity Analysis <br />Since the area is not fully developed, it is the goal of this CSMP to lay the framework for future <br />developments within the City of Lino Lakes CSMP area to utilize the regional BMPs to meet the RCWD <br />stormwater management requirements. Table7-1 summarizes the existing impervious surfaces and the <br />proposed infiltration requirements based on the City of Lino Lakes' Comprehensive Plan land uses <br />(Figure 4, Appendix A) and applicable RCWD Rules at the time of development. The details of the water <br />quality volume calculations can be found in Appendix E. <br />Table 7-1. Maximum Impervious Area at Full Development <br />As conceptually designed, the regional BMPs provide enough water quality volume to mitigate the <br />proposed impervious surface per the requirements in the RCWD Rule C.6. <br />7.2 Operation and Maintenance <br />The outlet control gates will be operated by the City of Lino Lakes and shall be placed to control the <br />release of water from each regional storage facility. The gates will be operated by the City of Lino Lakes <br />and shall be placed to control the release of water from each regional storage facility. Each gate must be <br />closed when Peltier Lake reaches an elevation one foot below the 100 -year flood elevation of 887.7 <br />[NAVD88] on the rising limb of the lake stage hydrograph and remain closed until the flood elevation on <br />Peltier Lake recedes below the 100 -year flood elevation of 887.7, on the falling limb of the lake stage <br />hydrograph. <br />The City of Lino Lakes will maintain permanent easements for all regional stormwater facilities to perform <br />routine and periodic maintenance activities as required by their MS4 permit. <br />Comprehensive Stormwater Management Plan <br />Northeast Lino Lakes Drainage Improvement Project <br />WSB Project No. 2929-79 <br />Page 23 <br />Existing Impervious <br />ac <br />Proposed Impervious <br />ac <br />EAST <br />14.5 <br />332.3 <br />CENTRAL <br />22.0 <br />317.3 <br />WEST <br />1.69 <br />56.8 <br />TOTAL <br />38.1 <br />706.4 <br />As conceptually designed, the regional BMPs provide enough water quality volume to mitigate the <br />proposed impervious surface per the requirements in the RCWD Rule C.6. <br />7.2 Operation and Maintenance <br />The outlet control gates will be operated by the City of Lino Lakes and shall be placed to control the <br />release of water from each regional storage facility. The gates will be operated by the City of Lino Lakes <br />and shall be placed to control the release of water from each regional storage facility. Each gate must be <br />closed when Peltier Lake reaches an elevation one foot below the 100 -year flood elevation of 887.7 <br />[NAVD88] on the rising limb of the lake stage hydrograph and remain closed until the flood elevation on <br />Peltier Lake recedes below the 100 -year flood elevation of 887.7, on the falling limb of the lake stage <br />hydrograph. <br />The City of Lino Lakes will maintain permanent easements for all regional stormwater facilities to perform <br />routine and periodic maintenance activities as required by their MS4 permit. <br />Comprehensive Stormwater Management Plan <br />Northeast Lino Lakes Drainage Improvement Project <br />WSB Project No. 2929-79 <br />Page 23 <br />