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<br /> <br /> <br />2004 Assessment Policy – Page 20 <br />overland flow and inlet structures such as catch basins, manholes and flared <br />end sections. <br /> <br /> <br /> 5. Storm Sewer Taxing District <br /> <br />A drainage area determined by using topographical maps and surveys that <br />mutually benefit from storm sewer improvements in conformance with <br />Minnesota Statute, Section 444.16 through 444.21 <br /> <br /> <br /> 6. Watershed District <br /> <br />A formally established area and Board that protects and controls the water <br />management aspects of subdivisions and developments within the region. <br /> <br /> <br />B. Determining Storm Sewer Assessment Rates <br /> <br /> 1. Storm Sewer Trunk Rates <br /> <br />Design and estimate the total improvement cost of the ultimate trunk system <br />needed to provide complete service to each property in the Service District <br />considered. Also, include the total cost of any existing facilities and/or <br />previous storm sewer assessments to be credited. <br /> <br />Determine the base assessment rate by dividing the ultimate system cost <br />described above by the sum total of the following: <br /> <br />▪ Gross area of low-density residential properties times 1.0. <br />▪ Gross area of medium and high density residential, church and <br />school properties times 1.25. <br />▪ Gross area of commercial property times 1.5. <br />▪ Gross area of industrial property times 2.0. <br /> <br />Assessment rates would be set as follows: <br /> <br />▪ The base rate shall apply to low density residential properties. <br />▪ The base rate times 1.25 shall apply to medium and high- <br />density residential, church and school properties. <br />▪ The base rate times 1.5 shall apply to commercial property. <br />▪ The base rate times 2.0 shall apply to industrial property. <br /> <br />Credits may be given for previous storm sewer assessments, existing systems <br />and any future additional construction that may be necessary as determined by