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HomeMy WebLinkAbout1996-07-30 VBWD Ltr to OPHJuly 30, 1996 Dear Mr. Robertson: Mr. Michael Robertson City Administrator City of Oak Park Heights 14168 North 57th Street P. 0. Box 2007 Oak Park Heights, MN 55082 Re: Oak Park Heights Annexation Area Surface Water Management Plan City of Oak Park Heights/Valley Branch Watershed District This letter is in response to your recent correspondence concerning a request for information on your Water Management Plan. The original request, dated April 1, 1996, was made by facsimile in the form of a transmittal letter to Dan Edgerton of Bonestroo, Rosene, Anderlik & Associates. Our engineer spoke with Mr. Edgerton within one week of this request and was told that this would be discussed with Joe Anderlik and a response would be sent addressing the Watershed District's concerns. Our engineer also informed Mr. Edgerton that this was not an urgent issue. We received a response from Bonestroo & Associates on July 22, 1996. The concerns the District has with the city's Water Management Plan are the proposed outletting of landlocked areas to the Cloverdale Lake watershed and the increase shown in the predicted 100 -year flood elevation for the "South Pond" on the Stillwater High School property. The city's Water Management Plan indicates the need for outlets from two landlocked areas which, prior to downstream development, appeared to be tributary to McDonald Lake if an overflow were to occur. Mr. Edgerton has indicated in his response that "it is prudent to provide outlets in the event that they (these areas.) someday develop." At this time, the District would deny a request to J outlet these areas to the Cloverdale Lake waters e ue o the current re. evel of tioverdale Lake, Secondly, the revised 100 -year flood elevation for the South Pond on the Stillwater High School site has been increased to either elevation 922.1 or 921.5 (from 921.0), dependent on the outletting of landlocked areas discussed above. This change appears to be primarily due to area once assumed to be directly tributary to Cloverdale Lake being diverted to the South Pond prior to discharging to Cloverdale Lake. Since this most likely will not change the amount of runoff reaching Cloverdale Lake, the District can propose a revision of the 100 -year flood elevation to 921.5. However, permission will be required from the riparian property owners before the District can adopt a new flood level. Please inform me if you would like the District to formally pursue this revision. DAVID PARKIN DAVE BUCHECK JEFF PETERSON RAY BRENNER JAMES BUELOW VALLEY BRANCH WATERSHED DISTRICT P.O. BOX 838 LAKE ELMO, MINNESOTA 55042 -0538 Mr. Michael Robertson Page 2 July 30, 1996 The District's intent is to work cooperatively with the city of Oak Park Heights and its neighboring communities to most efficiently manage the water resources in the area. I can be reached at 572 -5029. Sincerely, David Parkin, President Valley Branch Watershed District DPlrnst c: VBWD Managers Jennifer Dietz Lorne Wikstrom M. Schmiesing Paul Bischoff Joe Anderlik Dan Edgerton 2382174\40383-1