Agenda - Council Work Session - 10/05/1999

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Subd. 4 Assigning costs and making charges based upon expected typical storm water runoff cannot be done with mathematical precision but can only be accomplished within reasonable and practical limits. The provisions of this section undertake to establish a reasonable and practical methodology for making such charges. 4.80.03 RATES and CHARGES Subd. i RESIDENTIAL EQUIVALENT FACTOR. Rates and charges for the use and availability of the system shall be determined through the use of a "Residential Equivalent Factor" ("REF").. For the purposes of this section, one REF is defined as the ratio of the average volume of surface water runoff coming from one acre of land and subjected to a particular use, to the average volume of runoff coming from one acre of land subjected to typical single-family residential use within the city during a standard one-year rainfall event. Subd. 2 DETERMINATION of REF's FIR LAND USES. The REF's for the following land uses within the city and the billing classifications for such land uses are as follows: Land Uses REF Parks and Railroads .75 Two-Family Residential 1.00 Single-Family Residential 1.00 Public Schools and Institutional 1.25 Uses Multiple-Family Residential Uses 3.00 and Churches Commercial, Industrial and Warehouse 5.00 Uses Classification Subd. 3 OTHER LkND USES. Other land uses not listed in the foregoing table shall be classified by the city administrator by assigning them to the classes most nearly like the listed uses, from the standpoint of probably hydrologic response. Subd. 4 APPEALS. Appeals from the city administrator's determination of the proper classifications may be made to the city council. The council may adjust, by resolution, the storm drainage fee for a parcel or a class of parcels based upon hydrologic data to be supplied by property owners, which data demonstrates a hydrologic response substantially different from the standards. 2