08-28-2017 Council Packet - Laserfiche WebLink

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5 Wetlands A Wetland Delineation Report was completed by Jacobson Environmental, PLLC on May 23, 2017. Since no future development is to occur on the potential future Outlot A, delineation is only required on Lot 1 near the single family house. A WCA Notice of Decision was received on August 10, 2017. The requirements of the Wetland Conservation Act regulations as administered by Rice Creek Watershed District (RCWD) requiring a conservation easement and wetland buffer over the wetlands are not applicable since the parcel is not being subdivided. Any future subdivision of the parcel will be subject to WCA, RCWD and City requirements. Floodplain The 2015 DFIRM indicates Zone A floodplain on both Lot 1 and Outlot A. The plan sheets have been revised to indicate a RCWD floodplain base flood elevation (BFE) of 886.87. Grading and house construction do not appear to impact the floodplain. Shoreland Management Overlay The site is located in a Shoreland Management Overlay district of Wards Lake. This lake is a classified as a Natural Environment Lake and has an 883.7 OHWL elevation. A setback of 150 feet from the OHWL is required for all primary and accessory structures. Section 1102.07(2)(a) does however, allow for the following exception: “Placement of structures on lots. When more than one setback applies to a site, structures and facilities must be located to meet all setbacks. Where structures exist on the adjoining lots on both sides of a proposed building site, structure setbacks may be altered without a variance to conform to the adjoining setbacks from the ordinary high water level, provided the proposed building site is not located in a shore impact zone.” The plans show the 883.7 OHWL and staff understands this elevation has now been field surveyed. The OHWL setback of 6697 Ruffed Grouse Road is 56.3’ and the OHWL setback of 6690 Ruffed Grouse Road is 92.1’. The average setback is 74.2’. The 75’ shore impact zone is the more restrictive and shall be the applicable setback. The Grading Plan indicates 2.31% impervious surface coverage which meets the allowed 30% impervious surface coverage of the shoreland ordinance. Development Agreement A Development Agreement has been drafted by the City and shall be executed by the City and the developer and recorded by the developer.