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STATE OF <br />u C.T; Jr <br />CSC‘Ja <br />b^HEdOW <br />J <br />■3 <br />DEPARTMENT OF N/^TURAL <br />METRO WATERS, 1200 Warner Rd., St. Paul, <br />PHONENO. 772-7910 Fi^E NO <br />David Squire <br />McCombs Frank Roos Associates, Inc. <br />15050 23rd Avenue North <br />Plymouth, Minnesota 55447 <br />September 12, 1991 <br />RE: ORCHARD PONL PROPOSED PLAT, WETLAND 27-836W, CITIES OF ORONO AND <br />LONG LAKE, HENNEPIN COUNTS <br />Dear Mr. Squire; <br />I have reviewed the proposed plat (and other documents attached to your <br />August 26, 1991 letter) regarding the above-referenced project (SW i/4, <br />Sect. 35, T118N, R23W) and have the following comments to offer: <br />1.The old sewage treatment site is DNR protected wetland #27-836W. <br />(See attached copy of Protected Waters and Wetlands map). In <br />addition, the creek from Long Lake is a DNR protected watercourse. <br />Any activity below the ordinary high water (OHW) elevation, which <br />alters the course, current or cross-section of protected waters or <br />wetlands, is under the jurisdiction of the DNR and may require a DNR <br />protected waters permit. It also appears that there are other <br />wetlands on the site that would be subject to regulation by the U.S. <br />Corps of Engineers (contact Joe Yanta at 220-0362) and the city. <br />The OHW for the creek is defined as the "top of the bank." No <br />official OHW has been established for wetland 27-836W. Please <br />contact this office if there is any question about whether proposed <br />activities will be within protected wetland 27-836W and we can make <br />arrangement to estimate or officially determine, if necessary, the <br />OHW. <br />2.Filling below the OHW (of DNR protected wet]ands/waters) for upland <br />development is prohibited. Filling below the OHW for public <br />roadways can be permitted only if: 1) the public need ru''.es out the <br />no-build alternative, and 2) the alignment is the least impact <br />alternative. It appears that the road proposed on the east side of <br />(yr^ . - .the wetland will need toMj-elocated in order to avoid filling in <br />wetland 27-836W. t <br />3.A significant portion of the site is within the ICO year floodplain <br />district (a copy of the appropriate portion of the Flood Insurance <br />Rate Map is enclosed). Any activity within the floodplain would <br />have to be consistent with the floodplain regulations of both the <br />City of Orono (contact Jeanne Mabusth at 473-7357) and Minnehaha <br />Creek Watershed District (contact Ron Quanbeck at 473-4224). For <br />example, the lowest floors of the structures would have to meet the <br />minimum flood protection elevation, and compensatory storage may be <br />required for any filling within the floodplain. <br />AN EQUAL OPPORTUNITY EMPLOYER <br />. -yik