09-03-1996 WS - Laserfiche WebLink

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08/26/96 15:57 FAX SEH ST. PAUL -0.44MOUNDS VIEW 4003/004 Kathy Bennett August 26, 1996 • Page 2 The wetland on the site is a Department of Natural Resources(DNR)protected wetland (identified as 171W). This adds an extra layer of control over what can and cannot be done on the site. The city would have to request that the DNR determine an Ordinary High Water(OHW)elevation. Any ' work done below this elevation would require a DNR permit. If all development occurs above the OHW,then a permit is not required. i All other wetland issues will be handled by Rice Creek Watershed District (RCWD)7-They will administrate the Wetland Conservation Act(WCA)and any other requirements the district may have. The administrator at RCWD is Kate Drewry. At this time I recommend that the city determine a strategy for development prior to involving RCWD. If filling of the wetland is to take place, a Corps of Engineering (COE) permit may be required. Without any details of the project it is difficult to determine whether or a COB permit is required. The Local Water Management plan also identifies a storm sewer project that was to be done as part of developing the property. A new storm sewer was to be constructed from Highway 10 to Long Labe Road which runs parallel to County Road H2. A special structure was to be installed at Long Lake Road and H2 to utilize some of the storage potential of the wetland. Any development of the area will have to include or provide an alternative to this storm sewer system. • A final comment related to development of this site is that sedimentation ponds would need to be built to treat the stormwater prior to discharging into the wetland. The proposed development needs to incorporate pretreatment ponds in the site plan. There has also been some discussion with Mike Ulrich on the possibility of providing a regional treatment pond on the south side of Highway 10. The pond would treat the runoff from Highway 10 and the area that currently flows to the pond at the northwest comer of Long Lake Road and Highway 10. It may be possible to create a pond on the O'neal property for this purpose. With this information as background I.propose the following be done at this time: 1. Once a preliminary site plan is received from the developers,have SElf meet with you and the developers on the permit requirements for the site prior to discussion with the city councE- SEH would include in the meeting, our wetland permit expert Kelly Bettendorf. She can discuss the mitigation requirements better than I can. This meeting could be done as a conference call from your office or here at SEH. 2. Complete a wetland delineation on the site. Since the development area is critical to this project, it would be useful to know exactly how much is available. Even if this project falls through, the delineation could be used to sell the site to the next developer. The delineation • could be used for the next 5 years if site conditions do not change considerably.