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Preliminary Plat of Orono Shores <br /> 12/19/97,page 2 <br /> requirements of both residential and commercial PUD. The standards for stormwater <br /> management require that there be no more than 25%total impervious area within tier 2 and 3. <br /> The current proposal exceeds this requirement. In tier 1, the residential PUD language allows <br /> deviation from this standard with an approved stormwater management plan. The proposal was <br /> developed with a stormwater management system which incorporates sufficient ponding to <br /> adequately treat the generated runoff of the site. This deviation from the standards needs to be <br /> addressed, most likely with a variance. If the Board of Adjustment found that a variance was <br /> justified we would not object. However, stormwater management practices should be sufficient <br /> to have no net change on the rates and qualities of runoff from the site than would have been <br /> allowed if developed according to the standard. <br /> Lastly, the ordinance requires that there be agreements and restrictions in place governing open <br /> space and common area, maintenance and preservation. I am not sure if these have been drafted <br /> at this time. However, I recommend that any approvals be issued under the condition that these <br /> items need to be reviewed and approved by the City prior to final recording. <br /> Thank you again for the chance to review the project. I appreciate your work on trying to <br /> balance the complexities of a mixed use PUD as well as the other City code requirements. This <br /> proposal has been greatly modified from it's original form and appears to strike a balance. The <br /> PUD requirements have worked well in numerous projects around the state, when the level of <br /> development is matched to the site characteristics. This site has some significant limitations for <br /> the level of development originally anticipated, which increased the amount of frustration and <br /> • tension within the process. I hope that in its final form we have an acceptable project for all the <br /> participants. <br /> Si cerely, <br /> Larry camka <br /> Area Hydrologist <br /> c. Michael Trossen, Trossen Wright Architects P.A. <br /> Carol Mills, Guardian Angels of Elk River <br /> David Hills, Regional Hydrologist <br /> Ed Fick, Shoreland Hydrologist <br />