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Woodbury County supervisors push for moratorium, public review after Salix annexation sparks data-center concerns
Summary
After residents raised alarm about a voluntary 900‑acre annexation in Salix and potential environmental and infrastructure impacts, supervisors directed staff to draft a temporary moratorium and asked the zoning commission to run a multi‑community public review of data‑center permitting and local ordinance changes.
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Woodbury County supervisors on Tuesday signaled support for a temporary moratorium on new data‑center development in unincorporated county areas and directed staff to launch a public, multi‑month zoning review after residents and supervisors flagged a recent voluntary annexation of roughly 900 acres by the city of Salix.
The discussion began when Dan Priestley, the county zoning coordinator, described the county’s existing permitting approach — conditional use permits reviewed by the Zoning Commission and Board of Adjustment — and stressed that the county’s jurisdiction applies only to unincorporated areas, not inside city limits. He recommended a public engagement process similar to the county’s recent solar ordinance review to assess whether existing rules need strengthening for industrial data centers.
Residents from Salix and nearby rural areas told the board they had not received notice of the annexation and expressed a string of concerns. Janet Nyamak, who said her home borders the annexed land, asked the board to pass a moratorium to prevent another project appearing before the county before supervisors adopt new regulations. “No data center is worth the life and health of one person,” she said, urging stricter review of water use, traffic and environmental impacts.
Multiple speakers cited potential groundwater and water‑use risks, possible strain on local electricity supplies, heavy construction traffic, and loss of farmland and property values. Eunice Denise Jensen warned that shallow alluvial wells near Salix “are very susceptible to drought” and asked what discharge or water permits a data center would require. Christopher Prosch questioned whether the Siouxland area has the grid capacity to support a large data facility without raising rates.
Several speakers also raised procedural concerns about the annexation process and whether neighboring landowners and the county were properly consulted. Laura Sievers, the county engineer, told residents the county had received a certified letter but that any required consult and 30‑day review were not afforded in a way that allowed supervisors to act before the annexation took effect.
Board members said they were surprised residents and the county were not alerted earlier and described the situation as a breakdown in communication. Supervisors broadly supported drafting a one‑year, revocable moratorium — similar to one adopted recently in nearby Plymouth County — while the county undertakes an ordinance update and public outreach process overseen by the zoning commission. Chair Mark Nelson and other supervisors asked staff and county counsel to have moratorium language ready for consideration at the next meeting.
The board also asked the county attorney’s office to review whether any required consultations under Iowa Code were missed during the Salix annexation, and tasked staff to analyze implications for road maintenance if annexed parcels remain served by county crews.
The board did not adopt a moratorium at the meeting; members directed staff to prepare legal backup and draft ordinance language for a decision next week.
Ending: Supervisors said the next steps will be to circulate moratorium language, begin an ordinance review and to schedule multiple public meetings across the county so residents can provide input before any permanent zoning change is considered.

