Categorical Exclusion (CX) Determinations

Fermi Site Office Categorical Exclusion (CX) Determinations

Determination Date Name of Action: Description Categorical Exclusion Number
10/8/2025 Lab A Fire Suppression Sprinkler System Valve and Pipe Break - Response and Repair B2.5, B6.1
10/8/2025 Domestic Water Pipe Leak and Flooding Response and Repair at NM3&4 (KTEV) B2.5, B6.1
9/25/2025 CX Determination PIP-II Brush Clearing for Survey Monuments B1.3
8/25/2025 CX Determination for Fermilab Demolition of Sites 50, 52 and 55 B1.16, B1.17, B1.23, B1.27, B1.34
7/22/2025 Determination for Fermilab Ecological Land Management Plan B1.3, B1.20, B1.33, B3.3, B3.8, B3.16
6/10/2025 FSO NEPA Determination for Environmental Monitoring Program B3.1
6/10/2025 CX Determination for Railhead Clearance Plan B1.3, B1.28, B1.30
1/6/2025 Kirk Road Sanitary Sewer Improvements CX B1.31, B5.4
11/26/2024 Kautz Road Construction Entrance CX
10/22/2024 Improved Pavement Processes Using Compact SRF Electron Accelerators CX B3.6, B3.10
* Implicit in CX determinations are the following:
  1. There are no extraordinary circumstances related to the proposed action that may affect the significance of the environmental effects of the proposed action.
  2. The proposed action is not “connected” to other actions with potentially significant impacts.
  3. The proposed action is not related to other proposed actions with cumulatively significant impacts.
  4. The proposed action is not precluded by 40 CFR 1506.1 or 10 CFR 1021.211.
  5. For CX determinations made prior to November 14, 2011, CX number definitions can be found at: http://energy.gov/sites/prod/files/nepapub/nepa_documents/RedDont/CXR-10CFRPart1021-Changes.pdf