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COMPOSITE REPORT-Page 3 Application No. CUP 1436 aside from removal of some fill in upland areas. A new southwest to northeast runway, totaling roughly 7,000 ft in length, is proposed for extension into Parcel A. That runway will allow the elimination of an existing runway(see Exhibit A). The new runway is proposed to allow the redirection of air traffic away from populated areas, thereby diminishing noise impacts. The runway would also eliminate the need for"head-to- head" take-offs and landings on the existing north-south runway, thereby improving safety and increasing capacity somewhat. The selected runway alternative was chosen after consideration of other alternatives in the master planning and environmental impact statement processes. Also proposed for Parcel A is construction of a loop road around the runway for emergency access only(see Exhibit B). There would be no public street access to any point within the CUP area. C. The development of Parcel A will directly impact sensitive environmental resources. These resources are included within RPC-mapped environmental corridors and described as follows: • Wetlands: Working with DNR staff, the applicant's consultant Mead and Hunt conducted a field survey as part of the environmental impact statement process to determine actual wetland boundaries within Parcel A. That investigation revealed wetlands between Starkweather Creek and the vacated Messerschmidt Road, which is within the County's jurisdiction(see Exhibit B). The proposed runway would eliminate approximately 18 acres of that wetland. On June 4, 1997, the Army Corps of Engineers granted the applicant the applicable permit to fill that wetland subject to mitigation measures. These measures included (a) enhancement of a 12 acre degraded wetland immediately to the west, (b) creation of a 5 acre wetland further west from that area, and (c) creation of a 19 acre wetland in northern Dane County which will be deeded to DNR upon completion. These mitigation efforts are scheduled for completion by the end of 1997. • Floodplain: The FEMA floodplain boundary roughly parallels the field surveyed wetland boundaries (see Exhibit B). Therefore, the proposed runway will also affect the floodplain. Mead and Hunt completed a stormwater study which provided for creation of detention basins south of the CUP area so that off-site stormwater impacts would not increase as a result of this project. The floodplain area immediately west of the runway is also being improved. Stkvoff.ArHv'2 • Surface Water: The applicant proposes to relocate the channel of earth Creek to the north of its existing alignment in order to provide a crossing perpendicular to the proposed runway(see Exhibit B). On February 6, 1997,DNR granted the applicant a permit to fill Starkweather Creek in its existing alignment, rechannel a new alignment, and provide a culvert under the proposed runway. The applicant indicates that during and after construction, the relocated channel will be protected from erosion through riprap, erosion mat, special seed mixes, and other erosion control devices. DNR approved the recommendations of the stormwater plan and other erosion control measures within an erosion control plan. D. The approved Environmental Impact Statement also considered the indirect environmental impacts of the project on surrounding wetlands, surface waters, groundwater supply, habitat, and archaeological and historic sites. The Statement