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• VI. STORM SEWER IMPROVEMENTS <br /> 1 . Definitions <br /> a) Storm Sewer Improvement District <br /> The City Council may, at its discretion, construct and finance <br /> storm sewer improvements by utilizing a storm sewer tax district <br /> pursuant to Minnesota Statute 444.16 through 444.21. These <br /> statutes are reproduced in the Appendix. <br /> b) Storm Sewer Trunk Facilities <br /> 1 . Ponds <br /> A basin or wetland constructed or naturally located within a <br /> permanent easement for the purpose of containing storm <br /> runoff. May be either a retention (Permanent) pond, <br /> detention (temporary) pond, or a combination of both. Arden <br /> • Hills is within the Rice Creek Watershed District, which may • <br /> require additional improvements to control flow discharge <br /> from the ponds. The Rice Creek Watershed District has a <br /> formal permitting process governing pond construction. <br /> 2. Pipe Network <br /> A network of pipes ranging in size generally from 30 inches <br /> through 72 inches. The trunk pipe networks are designed to <br /> collect storm runoff from an area generally larger than 40 <br /> acres. <br /> 3. Channels <br /> An open ditch conveyance network constructed within permanent <br /> easements for the purposes of transporting storm runoff. <br /> • <br /> • 24 <br />