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plantings. Mr. Johnson provided various examples of formal and public urban <br /> rain gardens, some that didn't look like rain gardens yet still functioned as one. <br /> Mr. Johnson noted that there were various levels of maintenance, depending on <br /> the type of plants used and soil amendments, as well as size and other factors. <br /> Some of those online resources included: <br /> ■ Wisconsin Department of Natural Resources website <br /> ■ Blue Thumb.org <br /> ■ And the more technical MN Stormwater Manual(November 2005 edition) <br /> Mr. Johnson reviewed other storm drainage options installed or in the process of <br /> being installed in Roseville, one at the Manson/Stanbridge area where new piping <br /> was being installed to decrease waters in the overall area and protect adjacent <br /> properties. <br /> Discussion included permits for homeowners for installing a rain garden; <br /> impervious surface requirements for properties and if in excess of 30%, requiring <br /> mitigation; maintenance agreements for BMP's between the City and homeowner <br /> as applicable; and triggers for commercial properties when redeveloping based on <br /> City Code and area Watershed District requirements and oversight. <br /> Mr. Johnson reviewed cost share monies available for BMP's and technical <br /> support through the Ramsey Conservation District in designing and installing rain <br /> gardens; and regulations based on which of the three watershed districts in which <br /> a property was located, and available cost-participation monies different among <br /> each watershed district. Mr. Johnson noted that there was an application process <br /> for each BMP, followed by approval whether by their staff or Board, at which <br /> time the homeowner could install the BMP or hire a contractor to do so. Mr. <br /> Johnson advised that, typically the cost-share program was based on 50% of the <br /> total project amount up to a maximum amount. Mr. Johnson advised that various <br /> examples of installed BMP's are already in place in Roseville, with the BMP map <br /> done in draft form, and soon available to the public once the data was completely <br /> compiled. Mr. Johnson encouraged residents to contact him at City Hall for some <br /> addresses of BMP's, noting that Twin Lakes Parkway provided a great example <br /> for storm water treatment through multiple cells. <br /> Mr. Johnson noted that plantings and the treatment areas could be formal, native, <br /> sod, or trees and shrubs, including mowed versus non-mowed areas. Mr. Johnson <br /> further noted that watershed districts were looking to educate the public and <br /> encouraging property owner support in controlling stormwater for the benefit of <br /> all. Once a property owner contacted their watershed district or Ramsey <br /> Conservation District, Mr. Johnson advised that they would set up the next steps <br /> to follow, goals and options available; with a five-year maintenance agreement <br /> required once installed. No matter the size or how much benefit was available, <br /> Mr. Johnson advised that any improvements were encouraged, especially with the <br /> clay dominated soils in Roseville. <br /> Recess <br /> Page 7 of 15 <br />