- The Portsmouth site ISS contract covers telecommunications, fleet operations, records management and facility maintenance
- ATS will also oversee pollution prevention and environmental, safety, health and quality programs
- The work falls under the Office of EM’s Portsmouth/Paducah Project Office
The Department of Energy has awarded AIS Technical Services, or ATS, a contract worth up to $137 million to provide infrastructure support services, or ISS, at its Portsmouth site. The agency’s Office of Environmental Management, or EM, announced the award Friday.
What Are the Details of the Portsmouth ISS Contract?
The Tempe, Arizona-based small business will perform the work at the Piketon, Ohio, site, which includes its gaseous diffusion plant. The award carries a three-year base period and a two-year option, for a potential total of five years. The base period includes a 60-day transition.
DOE released the final request for proposals in January and ran the procurement as a total small business set-aside competition. The solicitation outlined a cost-plus-award-fee, firm-fixed-price contract.
EM selected ATS through a competitive procurement, determining that its proposal offered the best value to the government. Price, past performance, key personnel and the company’s organization and management approach factored into the evaluation. According to the award notice published on SAM.gov, the work falls under EM’s Portsmouth/Paducah Project Office.
What Services Will ATS Provide?
ATS’ responsibilities range from facility construction, maintenance and repair to safeguards and security, engineering and telecommunications. The company will also handle fleet, real property and records management, along with document control. It will provide training, mail and custodial services, including pest control, snow removal, and maintenance of grounds, roadway and parking spaces.
The work involves pollution prevention, waste management, and environment, safety, health and quality programs, which align with efforts to protect human health and the environment, according to EM.
What Is the Background of the Portsmouth Site?
The Portsmouth Site consisted of the former gaseous diffusion plant, centrifuge facilities, depleted uranium hexafluoride conversion facility and the on-site waste disposal facility. EM began environmental cleanup at the site in 1989 and started decommissioning the plant in 2011. The plant consisted of three process buildings: X-333, X-330 and X-326.
Idaho Falls-based North Wind Dynamics holds the current infrastructure contract, a $135 million award DOE made in 2021 to maintain facilities at the site. That contract, which followed an earlier one held by North Wind-led Portsmouth Mission Alliance, is set to conclude in the first half of calendar year 2027.
North Wind also received a potential $152.6 million indefinite-delivery/indefinite-quantity contract from EM in April 2025 for infrastructure support services at the Paducah Site in Kentucky. That contract also has a three-year base period and a two-year option. It replaced an infrastructure support services contract held by Swift & Staley.
Separately, DOE selected Aiken, South Carolina-based Southern Ohio Cleanup Company in 2023 for a contract valued at approximately $5.87 billion to carry out decontamination and decommissioning at the Portsmouth plant. The Amentum-led team, which includes Fluor and Cavendish Nuclear, is responsible for demolishing facilities, disposing of uranium material and treating contaminated soil and groundwater on-site.
EM has worked for more than 35 years to address the environmental legacy of nuclear weapons development and nuclear energy research.
