Welcome to the Department of Energy (DOE) Non-Time Critical Removal Action (NTCRA) page for the Knolls Atomic Power Laboratory (“Knolls”) F-Complex Project. Knolls is a DOE Naval Reactors site located in Niskayuna, Schenectady County, New York.

The mission at Knolls is to conduct research on nuclear reactors for the U.S. Navy for propulsion of aircraft carriers and submarines. Knolls has been an important member of the Town of Niskayuna community since 1946.  Naval Reactors is in a partnership with DOE-Environmental Management (DOE-EM) to address legacy facilities and to conduct remediation of environmental liabilities, which includes the F-Complex. EM has been engaged in the cleanup of the Department’s assets across the US for over 30 years and is committed to its mission, sound stewardship, and community involvement.

Aerial Photo of F-Complex in Red Boundary


F-Complex is an interconnected group of five buildings: F1, F2, F3, F4, and F6 (F5 was demolished in 1978). The complex was built between 1951 and 1970 and has reached the end of its use. During its active life, the F-Complex supported several research reactor projects, stored nuclear materials, and contained a machine shop, office space and storage areas. Three test reactor assemblies remain in F-Complex. All three test reactors have been defueled and are in a safe and stable condition awaiting disposition. The buildings have otherwise been largely emptied out and are not currently occupied or in use.

DOE proposed a Non-Time Critical Removal Action (NTCRA) under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA). The CERCLA NTCRA process used to assist Agency decision-making is shown below.  DOE has initiated community involvement activities, which will continue until the F-Complex Project is completed.

The Regulatory Process

NTCRA Flow Chart

The CERCLA process is a public process and public participation is welcome! DOE has prepared a document about the history and use of the F-Complex (Historical Site Assessment) and an Engineering Evaluation/Cost Analysis (EE/CA) that evaluates the F-Complex removal action alternatives. A Community Involvement Plan (CIP) has also been prepared. The CIP includes DOE’s plan for community outreach and discusses the ways that DOE is seeking to obtain community input and keep the community involved. In August 2023, DOE issued a Supplement to the CIP which includes updated community involvement activities. In July 2023, DOE issued an Action Memorandum, which considered public comments and documents DOE's decision on the final removal alternative for the F-Complex.  The public is welcome to provide input and contact DOE with any questions involving the F-Complex action. You can access these documents below.    

DOE maintains an Administrative Record for the project and has established an Information Repository for the public.

The Information Repository, or IR, is a collection of F-Complex documents and materials that includes the Historical Site Assessment (HSA), Engineering Evaluation/Cost Analysis (EE/CA), Action Memorandum (AM), Community Involvement Plan (CIP), Fact Sheets, Frequently Asked Questions pertaining to the F-Complex project, F-Complex photos, and other project information. Hard copies of the documents are available. The IR also has a copier if you would like to make copies of project documents.

The physical location for the IR is:

Schenectady County Public Library - Niskayuna Branch
2400 Nott Street E.
Niskayuna, NY 12309

Search by document title to find the location of the F-Complex documents on the shelves.  The following documents are also attached here:

The Administrative Record is a file maintained at the DOE office and includes documents such as the Historical Site Assessment (HSA), and Engineering Evaluation/Cost Analysis (EE/CA) that are considered or relied upon by DOE for their F-Complex decision-making. The AR file also includes the Action Memorandum (AM), that documents the selected alternative. The materials in the AR file are available at the IR; search by document title in the on-line card catalogue at www.scpl.org. You can also access the on-line versions of the documents by clicking on the links in the above Regulatory Process section of this webage.

On January 19, 2023, DOE held a public meeting at the Niskayuna, NY Town Center Building to discuss the F-Complex and the removal action alternatives. The meeting featured a presentation by Mr. Martin Krentz, the Federal Project Director at the DOE New York Project Support Office, on the F-Complex project and included background on the Environmental Management program, an explanation of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) process that is being followed for the project, an overview of F-Complex history, use, and environmental conditions, a review of the removal alternatives and description of DOE’s preferred alternative. Twenty-five members of the public attended the meeting in person, and 30 people viewed the presentation on a livestream provided by the Town of Niskayuna. The livestream portion of the event concluded at the end of the presentation.  A video of the presentation is available at the following link [Public Meeting Presentation].  The meeting began and concluded with an invitation to the public to submit their comments via a variety of methods, including in person at the meeting, in writing by mail, and by email or phone.  Following the presentation, the meeting was opened up for comments and questions.

A copy of the agenda and the presentation are available by clicking on the links below.

Notice of Availability for the EE/CA, CIP, Administrative Record, and Information Repository – January 5, 2023

Public Comment Period -  January 6, 2023 - February 6, 2023

DOE F-Complex Public Meeting – January 19, 2023

DOE Issues Action Memorandum - July 2023

DOE Issues Request for Proposal for Selected Alternative – 2024

DOE Awards Contract – 2024

Selected Alternative Implemented - TBD

Mr. Martin Krentz
U.S. Department of Energy
Federal Project Director
2425 River Road
Niskayuna, NY 12309-7100
(518) 395-4580