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Regular City Council Meeting <br />Monday, September 12, 2016 <br />Page 24 <br /> <br />Mayor Roe noted there were not a lot of questions raised that need to be answered <br />by a question-by-question method but, perhaps, more general information can be <br />provided. He asked Mr. Koland if he would like to specifically respond to any- <br />thing said during the public hearing. <br /> <br />Brad Koland, Applicant and Property Owner at 1926 Gluek Lane <br />In response to the question about storm water best management practices (BMPs), <br />and the rain garden, Brad Koland stated they showed it to the Rice Creek Water- <br />shed last week and talked with them about infiltration rates, which is 24 hours on <br />their existing rain garden. He explained the Rice Creek Watershed mandates 48 <br />hours for infiltration and has conducted infiltration tests at 1926 Gluek Lane, at <br />the corner. Mr. Koland stated they talked with Rice Creek Watershed about doing <br />a curb cut. The City of Roseville cooperates with the Rice Creek Watershed, <br />which has a storm water improvement plan (bench handout) where they could do <br />a curb cut before the storm drain to catch the first flush, which carries all the con- <br />taminants. <br /> <br />Mr. Koland acknowledged there was a lot of commentary about the drainage of <br />his specific lot but if you think about it, when talking about water rights or water <br />obligations, his is for 1,000 gallons, which he is able to manage anywhere on his <br />lot as he sees fit and is functional. He used a lot diagram to point out another <br />space where he could manage a significant amount of rain water and do more <br />benefit to the overall neighborhood by taking the first flush and all of the contam- <br />inants out of that portion of streaming water. <br /> <br />Mr. Koland also spoke with the Rice Creek Watershed about areas of other catch <br />basins but was told there’s not really much he can do there as far as storm water <br />drainage basins because the catch basins collect the water coming down from the <br />Ferriswood development. Mr. Koland stated he has done a lot of research on rain <br />gardens and offered to answer additional questions, if any. <br /> <br />In response to the question posed by Councilmember Willmus relating to the <br />Condition d, Mr. Freihammer explained with any grading plan, staff would assure <br />it meets the City’s requirements and a certain design level. In this situation, staff <br />would assure it is not in an area believed to be a floodway. Typically, if a new <br />development, the design has to meet 2-year, 10-year, and 100-year requirements <br />in terms of rate and volume control. <br /> <br />Councilmember Willmus referenced the last paragraph of the September 12, <br />2016, memorandum (Exhibit E) and asked Mr. Freihammer if he believed Condi- <br />tion d, as worded in the RCA, would capture all additional infiltration needs as a <br />result of constructing a new home and satisfy Code requirements. Mr. Freiham- <br />mer stated he cannot comment on the infiltration without seeing and confirming <br />the soil tests but there is potential it could be mitigated by rate control through <br />other means, similar to what the City did with the Corpus Christi project. <br /> <br />