Committee denies Madison Spring heavy-commercial rezone over wetland and hydrology concerns

The committee returned a contested rezone petition for 38.6 acres in the Town of Vienna seeking heavy-commercial zoning to locate a truck-repair business. Staff told the committee it had received more than 70 public comments and that Land and Water Resources raised significant concerns about compatibility with the county comprehensive plan and the site's hydrology. "We give significant weight to the land and water resources comments and relationship to the hydrology and the water features in the area," staff said in the presentation.

The applicant's engineer, Devon Winter, described engineering and stormwater measures intended to meet county and DNR standards, arguing the project would "remove farmland" and "go to native habitat." Winter said the project exceeded pollutant removal requirements and included a 30-foot no-grade buffer. Still, multiple committee members and county Land and Water staff warned that engineered basins cannot fully replace natural wetland hydrologic and habitat functions. County Land and Water staff said the Vienna Pothole Wetland Complex gathers water from thousands of surrounding acres and has rare nesting habitat for species such as yellow-headed blackbird.

Local and regional bird experts weighed in. Matt Reitz, executive director of the Southern Wisconsin Bird Alliance, said the site is a significant birding hotspot: "It is the 14th best hotspot in Dane County for birds," and he described the area’s rare assemblage of wetland-dependent species. Mark Martin, a longtime land manager with direct experience at nearby preserves, told the committee the pothole wetland supports nesting for wetland-sensitive species and is scarce in the county.

Committee members questioned whether long-term protections for wetland hydrology and habitat could be achieved if the land is rezoned to heavy commercial and potentially sold to future owners. Staff emphasized the policy-level question of whether heavy-commercial zoning belongs on the county future land-use map near a rare wetland complex.

Supervisor Jeffrey Kronig moved to deny the rezone; Supervisor Don Posler seconded. After discussion and recognition of the volume of public comment and staff concerns, the committee voted to recommend denial; the chair said the motion passes unanimously. The committee's denial will be transmitted with staff findings to the county board for its meeting on July 16, 2026.

This decision reflects the committee's judgment that the policy and cumulative-hydrology risks outweigh the benefits offered by the applicant’s mitigation measures.