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ATTACHMENT B <br />[STORM WATER DRAINAGE UTILITY ORIGINAL POLICY] <br />CITY POLICY <br />TITLE <br />Credits and/or adjustments of municipal storm water drainage fees. <br />BACKGROUNG STATEMENT <br />The municipal storm water drainage utility utilizes a fee structure based on the anticipated relative <br />contribution of storm drainage runoff volumes to the storm water drainage system. A parcels <br />contribution is determined by that parcels size and its land use, under the principal that more <br />intensively developed land uses typically have a larger percentage of impervious surface and <br />contribute to much greater volume of water and/or sediment/nutrient loadings to the system. <br />It is recognized that some parcels, due either to their unique topographic, vegetative, geologic and <br />other characteristics, or the existence and maintenance of onsite storm drainage control, detention, or <br />retention facilities have a hydrologic and sediment/nutrient loading response substantially differently <br />from that of similarly sized parcels of the same land use. <br />To provide for an equitable assessment of storm drainage fees, based on reasonably expected <br />contribution of flows and sediment/nutrients, provisions need to be made to permit adjustments or <br />credits to the storm drainage fees for those parcels with unique or unusual characteristics. <br />POLICY STATMENT <br />The basis of the City of Roseville's starm water drainage fees is the anticipated relative contribution of <br />storm water volumes and sediment nutrient loadings to the storm drainage system from a given parcel. <br />Where unique or unusual conditions exist where the actual contributions of water volume and <br />sediment/nutrient loadings from a given parcel are substantially different from those anticipated by the <br />storm drainage fee structure, the public warks director or his designate may adjust or credit the storm <br />drainage fee for said parcel or an appropriate level in accordance with the guidelines specified herein. <br />PROCEDURE STATEMENT <br />(1) Pro�ertv Owner to Provide Detailed Information <br />It is the responsibility of the property owner or his agent to present to the public warks director or <br />his designate, sufficient information concerning a parcels hydrologic characteristics to permit an <br />accurate assessment of the conditions that exist. This information may include, but is not limited <br />to: <br />A. Site plan showing locations of all buildings and other development relative to lot lines. <br />B. The total lot area and area of impervious surfaces. <br />C. Site topography or contours of sufficient detail to ascertain flow directions, rates and <br />volumes. <br />D. Size, details and/or volumetric characteristics of any drainage control facilities. <br />E. Hydraulic calculations specifying outflow volumes and rates for various rainfall events. <br />(2) Adjustments Where Parcel Runoff Is Si�nificantiv Different From Land Use Standard <br />