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PHONE NO. <br />STATE OF <br />L DEPARTMENT OF NATURAL RESOURCES <br />K <br />METRO WATERS - 1200 WARNER ROAD, ST. PAUL, <br />772-7910 <br />MN 55106 <br />FILE NO. <br />February 17, 1994 <br />Ms. Jeanne Mabusth <br />City of Orono <br />P.O. Box 66 <br />Crystal Bay, Minnesota <br />FEB 2 2 <br />55323 <br />RE: TANDEM PROPERTIES, COFFIN/DICKEY SITE, CITY OF ORONO, HENNEPIN <br />COUNTY <br />Dear Ms. Mabusth: <br />We are writing to follow up on the February 3, 1994 nesting with <br />city staff, representatives of Tandem Properties and DNR staff. <br />I'd like to summarize our understanding of the agreements that were <br />made and concerns that were noted. <br />Coffin Property - Most of the discussion focussed on the Coffin <br />Property: <br />1. <br />2. <br />Since the existing ditch along the Luce Line and the existing <br />18** culvert through the Luce Line already are inadequate for <br />conveying runoff under existing conditions, the DNR is <br />concerned about making a bad situation worse. Therefore, it <br />was agreed that Tandem Properties would be responsible for: <br />a. cleaning/upgrading the existing ditch that runs along the <br />Luce Line, <br />replacing the existing 18" culvert, which is in <br />disrepair, with a new/upgraded 24" culvert, and <br />placing a new culvert under the horse trail in the area <br />by the pond (at the east end of the property). <br />b. <br />c. <br />The city has concerns about the potential impacts of the <br />proposed development on the Ryerse property. Some type of <br />emergency overflow is required for handling flood flows in <br />case the lower culvert through the Luce Line is plugged. <br />a. DNR staff agreed to allowing a second, higher culvert <br />through the Luce Line to act as an overflow. <br />b. DNR staff also agreed to consider minimal lowering of the <br />elevation of the Luce Line at this location, provided: <br />the slope in the graded area is no greater than one <br />percent, DNR Trails 6 Waterways staff has an opportxinity <br />to review and approve the detailed plans, and the surface <br />of the trail is restored. As noted during the meeting, <br />any proposed change in grade should be kept to a minimum <br />in order to avoid creating maintenance problems on the <br />trail. <br />AN EQUAL OPPORTUNITY EMPLOYER