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Attachment F CHAPTER 803 STORM WATER DRAINAGE SECTION: 803.91: Storm Water Drainage Utility 803.92: Connection to Storm Sewers 803.3 Storm Water Illicit Discharge and Connections 803.4 Erosion and Sedimentation Control 803.1 : STORM WATER DRAINAGE UTILITY: A. Establishment: The Municipal storm sewer system shall be operated as a public utility pursuant to Minnesota Statute, section 444.075, from which revenues will be derived subject to the provisions of this Section and Minnesota statutes. The storm water drainage utility will be part of the Public Works Department and under the administration of the Public Works Director. B. Definition: "Residential equivalent factor, (REF)" - One REF is defined as the ratio of the average volume of runoff generated by one acre of a given land use to the average volume of runoff generated by one acre of typical single-family residential land during a standard one year rainfall event. C. Fees: Storm water drainage fees for parcels of land shall be determined by multiplying the REF for a parcel's land use by the parcel's acreage and then multiplying the REF for a parcel's land use by the parcel's acreage and then multiplying the resulting product by the storm water drainage rate. The REF values for various land uses are as followsi: For the purpose of calculating storm water drainage fees, all developed one -family and duplex parcels shall be considered to have an acreage of one-third (1/3) acre. The storm water drainage rate used to calculate the actual charge per property shall be established by City Council Resolution. D. Credits: The City Council may adopt policies recommended by the Public Works Director, by resolution, for adjustment of the storm water drainage fee for parcels based upon hydrologic data to be supplied by property owners, which data demonstrates a hydrologic response substantially different from the standards. Such adjustments of storm water drainage fees shall not be made retroactively. E. Exemptions: The following land uses are exempt from storm water drainage fees: 1. Public rights of way. 'CLASSIFICATION LAND USES REF 1 Cemeteries golf courses 0.25 2 Parks with parking facilities 0.75 3 Single-family and duplex residential 1.00 4 Public & private school, community center 1.25 Multiple -family residential, churches & government buildings 2.50 Commercial, industrial, warehouse 5.00 Improved vacant As Assigned 2. Vacant, unimproved land with ground cover. Payment of Fee: Statements for storm water drainage fee shall be computed every three months and invoiced by the Finance Officer for each account on or about the fifth day of the month following the quarter. Such statement shall be due on or before the last day of the month in which the statement is mailed. Any prepayment or overpayment of