What Happens If Data Center Construction Begins at the Former Killen Power Plant Site?

The Moratorium Question

Sources indicate that the temporary moratorium on breaking ground at the former Killen Power Plant site may not be as firm as many residents assumed. The language reportedly used to establish the pause appears to be voluntary rather than legally binding. A binding moratorium carries enforceable restrictions and clear procedural safeguards. A voluntary pause relies on discretion and goodwill.

When redevelopment involves legacy contamination risk, that distinction is not technical — it is structural. If the moratorium lacks enforceable language, the community may be operating under an assumption of protection that does not legally exist, and the timeline for excavation could hinge on internal decisions rather than public process. That reality makes it more important, not less, to understand what sits beneath the surface at the former Killen site before any ground is disturbed.

The Site: Legacy of Coal Combustion

The former Killen Power Plant in Adams County, Ohio operated as a coal-fired facility for decades. Facilities of this type do not close cleanly regardless of what remediation work is performed. They leave behind coal ash deposits, heavy metal residues, petroleum storage infrastructure, and documented soil and groundwater contamination.

According to the U.S. Environmental Protection Agency, coal ash can contain arsenic, lead, mercury, cadmium, chromium, and other toxic substances under the Coal Combustion Residuals Rule, 40 C.F.R. Part 257. Long-term storage in unlined ponds has produced groundwater contamination at coal plant sites across the country. When sites like this are rebranded as redevelopment opportunities, the contamination does not change character. The risk remains — it simply changes owners.

What Happens When Excavation Starts

Redevelopment means excavation. Excavation at a former coal plant site is categorically different from breaking ground on an undeveloped parcel. Three contamination pathways become active when digging begins.

The Workforce Reality

Major industrial redevelopment projects typically rely on contractors from outside the host county. Specialized environmental remediation firms, construction managers, and subcontractors rotate in and out on defined project schedules. They are not settling their families into local schools. They are not relying on local wells for the next twenty years.

If monitoring wells spike five years from now, it will not be the out-of-state contractor at the town hall meeting. It will be local homeowners managing depressed property values, local taxpayers funding emergency response, and local officials explaining why testing became necessary after the ribbon was already cut. It will be the Ohio families already living in the contamination shadow of these facilities absorbing additional risk. Transient labor is not inherently problematic. But when the people doing the digging do not live with the consequences, the risk tolerance built into operational decisions tends to reflect that asymmetry.

Regulatory Oversight: Necessary but Not Sufficient

The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), 42 U.S.C. § 9601 et seq., governs cleanup of hazardous sites. Many former coal plants are addressed under state voluntary action programs rather than full Superfund designation. State oversight varies considerably in rigor, particularly when redevelopment is framed as economic revitalization for a struggling community.

Environmental justice research has documented the pattern consistently. Bullard (2000) and the U.S. Commission on Civil Rights (2016) both found that industrial redevelopment disproportionately impacts rural and economically vulnerable communities — precisely the communities most likely to accept redevelopment on terms that would not be acceptable in more economically insulated areas. When a county is promised jobs and tax base, the institutional pressure to move quickly can displace the long-term monitoring obligations that would otherwise govern the process.

The Data Center Proposition

Recent reporting has positioned former coal plant sites as attractive locations for data center development because of their existing transmission infrastructure. That infrastructure argument is real. So is the contamination legacy. Data centers require substantial excavation for foundations, cooling systems, and electrical routing. They also require long-term water and energy use at scale. Introducing heavy new infrastructure onto a partially remediated industrial footprint increases the cumulative environmental complexity of the site, rather than resolving it.

Redevelopment is not inherently reckless. Redevelopment without full public transparency, independent testing, and long-term community monitoring is.

How Risk Is Distributed After Redevelopment

The liability structure of industrial redevelopment follows a predictable pattern. Developers negotiate liability protections before closing. Utilities restructure or dissolve subsidiaries holding legacy contamination exposure. Insurance policies limit coverage for known contamination conditions. Contractors complete defined scope and exit. Local residents inherit the air, the soil, and the groundwater — and whatever consequences emerge from each of those over the decades that follow.

The question is not whether redevelopment can occur at the Killen site. It is whether the people who will remain in Adams County after the project closes will be protected as rigorously as the investors and contractors who will not.

What Communities Should Require Before Construction Begins

The following measures represent baseline risk management for redevelopment of a coal combustion site. They are not anti-development conditions. They are the minimum due diligence that distinguishes responsible redevelopment from the transfer of liability onto the host community.

Why This Matters

When redevelopment outpaces accountability, the cost shifts downstream. Communities that hosted the pollution for decades should not be asked to absorb the uncertainty of its redevelopment as well. Economic revitalization cannot rest on voluntary assurances when the contaminants in question do not respond to goodwill — heavy metals do not evaporate and groundwater does not forget the history of what moved through it.

The real question at the Killen site is not how many megawatts can be delivered to a future data center. It is whether the people who remain in Adams County will be protected with the same deliberateness that governed the financial structuring of the project itself. That part requires more than a voluntary pause and a ribbon cutting. It requires enforceable commitments, independent verification, and a monitoring framework that outlasts the contractor’s last invoice.