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Augusta, Georgia Brownfield Cleanup

The historic Sibley Mill was a textile manufacturing site that closed in 2006. Located between the Savannah River and the Augusta Canal, the 21-acre site has contaminated soil and several buildings contaminated with hazardous substances. 

A photo of a brick mill foregrounded by water.
The historic Sibley Mill in Augusta, Georgia

The commercially desirable canal-side location provided strong incentives for the site to be redeveloped. In 2010, the Augusta Canal Authority purchased the mill to clean up and redevelop the site. The site cleanup was completed in 2018.

The Augusta Canal Authority used EPA’s Analysis of Brownfields Cleanup Alternatives (ABCA) checklist to guide the cleanup and redevelopment process. This checklist requires that the resilience of remedial options be evaluated in light of reasonably foreseeable changing conditions in the environment. 

The site is vulnerable to more frequent and intense storms and flooding, which can impact the mobility of contaminated material left onsite. By including current and future risks in its analysis, the Augusta Canal Authority was better able to understand potential vulnerabilities associated with their planned brownfields cleanup and to provide assurances to future site tenants or owners. 

In 2011, the Authority started a $1.3 million environmental cleanup which is expected to be highly resilient to future projections developed for the area. Rather than isolate and cap contaminated material onsite, the Augusta Canal Authority excavated the contaminated soil and disposed of it offsite. 

With assurance that the site was cleaned up in a resilient and safe manner, Cape Augusta Digital Properties began a 75-year lease on the Sibley Mill complex in 2016. The property is being developed into a mixed-use technology park with a 20-megawatt data center, called Augusta Cyberworks.

How did they do it?Applicable EPA Tools

Identified potential hazards and impacts.

  • Used state data to determine vulnerabilities such as more frequent and intense storms. Storms may lead to flooding, which may result in contamination releases or unintended groundwater infiltration.

Review the NOAA National Centers for Environmental Information: State Climate Summaries to better identify projected climate risks.

NOAA National Centers for Environmental Information: State Climate Summaries

Considered risks and vulnerability when evaluating cleanup alternatives.

  • Examined various cleanup approaches to meet the needs of the site and considered risks and vulnerability.
    • Cleanup alternatives were considered based on resilience to flooding during major storm events.

Use one of EPA's brownfields checklists to help consider anticipated climate changes in your Brownfields Corrective Action Plan.

  • EPA's Analysis of Brownfields Cleanup Alternative Checklist
  • EPA’s Area-Wide Planning Brownfields Checklist

Selected a Brownfield Cleanup Alternative with Adaptive Benefits.

  • Excavating and disposing of contaminated material offsite increases resilience to sea-level rise and coastal flooding. The cleanup included institutional and engineering controls to further protect public health and safety and to ensure that site modifications be reevaluated after each storm event.

Use EPA Brownfield Revitalization in Climate-Vulnerable Areas planning tool to help inform selection of appropriate adaptation option.

Climate Resilience Planning Tool

Use State or Federal guidance to help direct cleanup alternatives and decisions: Georgia Environmental Protection Division (GAEPD) Brownfield

Corrective Action Plan (CAP)

Similar Cases and More Information

Waste sites, such as Superfund, RCRA, and Brownfields sites, are at potential risk from the impacts of climate change. See how sites are accounting for changes in environmental conditions during cleanup and redevelopment planning.

  • Brownfield Redevelopment Plan in Barre City, Vermont
  • American Cyanamid Superfund Site Reduces Risk Exposure
  • San Francisco Cleans Up India Basin Waterfront Brownfield Site as Part of Greenspace Development Effort

References

Submit a Case Study
  • Augusta Tomorrow | SIBLEY MILL AUGUSTA CYBERWORKS
  • South Carolina Department of Natural Resources

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Last updated on August 8, 2025
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