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22.2:4 Alternative Compiiance Sequencing: For sites where infiltration practices are determined infeasible as described <br />in Section. 2:2.3(i), the follvviixxg Altexnative.Compliance Sequencing steps shall be taken in the order shown'. <br />4� Use of alternative. volume control practices as described in the Minnesota, Storinwater Manual, 2005, and. as <br />amended, sized.accotding to .Section 22.2.2(b). <br />Use of on -site: filtration -practices arid biofiiltxation using an impesrneable liner and under drain, sized to.filtet <br />a volume of runoff according to Section M2.2(b). <br />Use .of off -site volume control practices sized according to Section 22.2.2(6). Off. -site volume. control <br />practices .can be used to provide for stormwater management:based on the following criteria. <br />1. Off -site practices shall -be constructed within the <br />site. <br />2. off. --site practices are. required to be �oistili <br />ixxipc * usaess within the contributing drainage area=. <br />D� Use of wet sedirrient basins. sized per the; standard des <br />Construction: Activities, 2008, and as amended:;:: <br />22.2.5 Volume. Control Credits. <br />Volume .control credits Will <br />amended. <br />Volume. control credits must bc= <br />Minnesota Stormwatex Manual' 20053 <br />22.2.6 Maintenance:and Easement. <br />ed as <br />rrfied:based. on fi <br />as arrerided;:;fvr the <br />drainage area or.subwatershed as the project <br />and operational.:prior to constructing <br />the MPCA General. Permit. for <br />Minnesota Sto .mwater Manual, 2005, and as <br />.s outlined within Chapter 11 of the. <br />Water Quality Volume: <br />multiplying one (1) inch of runoff .over the <br />than 1/2 inch of runoff over the proposed impervious <br />4ji z nded conditions must be met, unless specifically waived by <br />Commission. <br />.m, Wetland, or Shoreland Buffer Credits,. the credits mill apply to. areas outside <br />requitement as prescribed within these Policies. <br />hits can be applied to the roadway .portion of the .proposed site when grass <br />igned with water quality adaptations such as. water quality berms. <br />A: 5tormwater,management easements shall be provided by the applicant. for.(1) access for facility inspections <br />and maintenance and (2) preservation. of stormwater runoff 'conveyance, infl.tration, and detention .areas -and. <br />facilities, including the overflow route. <br />Land used by stotmwater management facilitiesshall be preserved by dedication.and/or perpetual easement <br />to the .City, when required by the City.. These easements shall cover those .portions. of the.property which are <br />adjacent to the facility .and -whiich lie below the 100-year. flood elevation. <br />Q A: maintenance .agreement .shall be. recorded with the County as part of the City development approval.,. <br />process.. Minimum requirements for the maintenance agreement include- <br />Vpdated March 14, 2017 Gem Lake CorasoIidated Land Use Ordinance — Page 133 <br />