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2) All pump islands shall be set at least thirty (30) feet back from any property <br /> line. Additionally, the setback between the pump islands curb face must be at <br /> least twenty-four(24) feet. <br /> • The pump islands are properly elevated and set back both from each other <br /> and from property lines. <br /> e. Dust Control and Drainage. The entire site other than taken up by a building, <br /> structure, or plantings shall be surfaced with asphalt, concrete, cobblestone, or <br /> paving brick. Plans for surfacing and drainage shall be subject to approval of the <br /> City Engineer. Drainage from all fueling areas shall be directed to an oil/grit <br /> separator. Minimum design standards for the oil/grit separator shall include the <br /> following: <br /> 1) A minimum of four hundred (400) cubic feet of permanent pool storage <br /> capacity per acre of drainage area. <br /> 2) A minimum pool depth of four(4) feet. <br /> 3) A minimum oil containment capacity of eight hundred (800) gallons. <br /> 4) Minimum maintenance/inspection of two (2) times per year and/or after <br /> measurable spill events. A measurable spill shall be defined by the <br /> Minnesota Pollution Control Agency (MPCA). Any measurable spill event <br /> must be reported to the MPCA. <br /> • The submitted plans include an oil/grit separator. Plans received on <br /> September 1 include a trench drain that directs runoff to the separator. <br /> • The plan includes an infiltration basin. The site currently drains directly into <br /> the road ditches. With the increase in impervious surface, it's a good idea to <br /> infiltrate some runoff. As with any new stormwater facility, the City requires <br /> an agreement that the basin be maintained. <br /> • No Rice Creek Watershed permit is required for this project. <br /> f. Landscaping. <br /> 1) At least twenty-five (25) percent of the lot, parcel or tract of land used <br /> exclusively for the gas sales facility shall remain as a grass plot, including <br /> trees, shrubbery, plantings or fencing and shall be landscaped. Required <br /> minimum green area should be emphasized in the front and side yards <br /> abutting streets or residential property. <br /> 2) At the boundaries of the lot, the following landscape area shall be required: <br /> 40 <br />