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Heinzeroth Property—Lot 2 Wetland Delineation Report Ms.Heinzeroth Town of Dunkirk.Dane County,Wisconsin November 7.2007 NRC Project#007-0238-01 RESULTS The Wisconsin Wetland Inventory map identifies a shrub-can wetland complex within the floodplain of the Yahara River in the far western portion of the Lot(Figure 3). Soils identified within the Lot by the NRCS Soil Survey of Dane County include Salter sandy loam,wet variant(ShA)and Wacousta silty clay loam(Wa)(Figure 2). The Wacousta series is listed as a hydric soil and the Salter series is listed to contain hydric inclusions on the NRCS List of Hydric Soils for Dane County. The wetland identified in the field by NRC was in the same general location and extent as the mapped Wacousta soil series and more extensive than wetlands identified on the WWI map. An on-site wetland delineation was completed on October 3,2007 by Jeff Kraemer of NRC. USACE data sheets were completed for six(6)sample points and are included in Appendix A. The transect and sample point locations were chosen within representative plant communities and at various landscape positions. Wetlands Wetland 1 Wetland 1 (W-1) is largely comprised of a wet meadow community dominated heavily by reed canary grass(Phalaris arundinacea). The wetland transitions to a fringe of shrub-can before descending into a floodplain forest adjacent to the Yahara River. The shrub-can component is largely comprised of pussy willow (Salk-discolor),red-osier dogwood(Cornus stolonifera),and grey dogwood(C. racemosa). The floodplain forest is comprised mostly of boxelder(Ater negundo). The wetland boundary is fairly distinct and occurs along a subtle topographic break that corresponds with a transition from reed canary grass to upland old-field mostly denoted by wild carrot(Daucus carota) and Canada goldenrod(Solidago canadensis). The wetland complex contains seasonally saturated and inundated soils fed by local surface water runoff and seasonally high groundwater in the upper reaches and seasonal flooding of the Yahara River in the lower reaches. Primary indicators of wetland hydrology included saturated soils near the surface. Secondary indicators included a positive FAC-neutral tests and local soil survey data. The wetland complex is directly adjacent to the Yahara River. 111 The soils within the wetland are mapped as Wacousta silty clay loam(Figure 2). The Wacousta series consists of very deep,very poorly drained soils formed in silty lacustrine sediments.These soils are in broad depressions and swales on till plains,moraines, and stream terraces. The soils observed on-site tended to be consisted with the NRCS soil map. Hydric soil indicators observed within the wetland included a depleted matrix near the surface(F3)and below a thick dark surface (Al2). Table 1. Summary of Water Resources Identified within the Lot. Water Resource ID Water Resource Description Acreage(on-site) Wet meadow/shrub can-/floodplain forest, "" Wetland 1{W-1) degraded vegetation 2.5 acres I Regulatory and Scientific Expertise — Wetlands, Soils, Ecology, Restoration Page 4 a