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September 20, 1995 iP\~ o.d)J) ~ tfU To: Mayor and City Council of Roseville Re: i~,' . --v . i/.. :/ (A.,V .-/J From: Bruce Sandstrom, Planning Commission Member 78 , Variance, Calvary Baptist Church As a Planning ommission Member and resident of Burke Avenue, I have a number of concerns about the Calvary Baptist Church development proposal that I hope that you will consider when placing conditions on the variance needed for this project. My major concerns are with the lack of provision for adequate storm drainage ponding for this site and the lack of adequate landscaping and screening. I can not be present at the Sept. 25 hearing so I ask you to accept my comments in writing. 1. More Storm Water Ponding is Needed on Site. The current plan is providing storm water ponding for only the new impervious surface. Burke Avenue already floods due the runoff from Calvary's parking lot. In 1995 alone, the street flooded over the curb two times. At the Sept. 13 Planning Commission hearing a neighbor expressed concern about basement flooding near the parking lot. Much of the problem started about four to five years ago when Calvary purchased two single family homes, removed them and expanded the parking lot. Based on review of city records, it appears that in late 1990 or early 1991 the lot was expanded from about 130 parking spaces to 320 spaces. As a result of the present expansion, four more taxable, single family residences will be lost, much of which will be converted to an additional 101 parking spaces and additional impervious roof surface, all tax exempt. The site will contain about five acres of impervious surface for which there is inadequate ponding. (It takes about 70 to 75 single family residences to equal this amount of impervious surface.) The lack of adequate storm water drainage for the existing facility could be construed to constitute a public nuisance pursuant to the City Code if left unabated. The proposed pond shape and~ i4- design meets neither- the Met Council and MPCA guidelines nor the standards contained in Roseville's Surface Water Management Plan adopted in February, 1990. Specific Recommendations: 1a. Require the entire site be served by a properly designed storm water pond. lb. Require berming along Burke Ave. (including entrances/exits) to the degree needed to contain the 100 year critical storm on the parking lot. (This would likely be on the order of 2.5" of rain in about a one-half hour.) Require the city engineer certify for compliance with the City's water management plan as provided by Section 1016.24 of the City Code. Require a grading and permit from the City Council as provided by Sections j 705.01, B. and 1016.23, A, 2. of the City Code. Condition the permit to install a ~ temporary sedimentation basin prior to any earth work and impose a specific time line for temporary and permanent erosion control. 1c. ]Jf J 1d. 2. More Landscaping is Required to Meet the City Code. This development has and is continuing to convert portions of a residential neighborhood to a mass of asphalt and associated buildings. The landscape plan is not compliant with applicable code. Further, additionallandscapfug and screening needs to be designed into the project. There is