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CC_Minutes_2016_0912
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Roseville City Council
Document Type
Council Minutes
Meeting Date
9/12/2016
Meeting Type
Regular
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Regular City Council Meeting <br />Monday, September 12, 2016 <br />Page 27 <br /> <br />probably require grading to stay two feet outside of the defined 957 contour so it <br />should not impact the storage of the existing floodway that is being witnessed <br />now. <br /> <br />Councilmember McGehee asked whether Minnesota has experienced two 1,000- <br />year floods this summer. Mr. Culver stated he does not know the size of two <br />1,000-year floods. Councilmember McGehee stated she knows there has been <br />one so it is not out of the question. Mr. Culver agreed it is not out of the question <br />and he would not counter there have been some significant rainfall events. <br /> <br />Councilmember McGehee noted that if less than 30% of the lot is impervious sur- <br />face, even the BMP for Basin 1 is not required by Code. She asked under what <br />circumstances the two other BMPs options would come into play. Mr. Culver <br />stated the proposal, partly through negotiations, is to install the BMP with the <br />recognition they may not be required by Code or City Policy for this proposal and <br />to do that is an extra measure in recognition to mitigate and slow down the runoff. <br /> <br />Councilmember McGehee asked whether Condition d states that any grading has <br />to be outside of the 957-958 elevation by two feet and that all of buried storage <br />Option 1, buried storage Option 2, Basin 2, and Basin 1 has to be installed in ad- <br />vance of grading. <br /> <br />Mayor Roe opined it does not and pointed out his understanding that buried stor- <br />age Option 1 is an alternate to Basin 1. It is one or the other and likewise, buried <br />storage Option 2 is an alternate to Basin 2. Mayor Roe stated his understanding <br />that Option 1 deals with the new lot and potential impervious surface added as a <br />result of developing that lot. Option 2 is additional and not necessarily part of the <br />adding development to that new lot. Mr. Freihammer stated his understanding the <br />basins would address the new impervious surfaces. <br /> <br />Mr. Koland stated it has already been established the City Council did not ap- <br />prove his previous application without consideration of the drainage so he provid- <br />ed options for the City Council to leverage with approval consideration. The ba- <br />sins proposed are concepts, as required by the planning phase, and the thought <br />process was to take all, if not more, of the additional drainage caused by any pro- <br />posed development in the subdivision. Mr. Koland stated it does not make a dif- <br />ference to him whether Basin 2 or Basin 1 and he is willing to work with staff to <br />establish that or the Council could set ground rules if it wants the BMP located on <br />the subdivided lot. Mr. Koland stated it does not matter to him where the water <br />comes from as long as 1,000 gallons gets impounded as offset for the additional <br />drainage caused by the additional development. <br /> <br />Mayor Roe asked whether Basin 1 and storage 1 options handle just the new lot <br />and Basin 2 is not, or if it is a combination of all four options having to be done. <br />Mr. Koland stated he would definitely not have to do all four options to address <br /> <br />
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