Thomas Jefferson Site Office CX Determinations

Determination Date Name of Action: Description Categorical Exclusion Number
12/7/2023 Laydown Yard Expansion Project – TJSO-SC-23-01 B1.15, B1.31, B1.33
12/1/2022 Electric Vehicle Charging Stations Installation Project – TJSO-SC-22-01 B5.23
6/29/2020 MOLLER MIE Project – TJSO-SC-20-01 B1.31
7/12/2019 CEBAF Renovation & Expansion Project -TJSO-SC-19-01 CX B1.15, B1.24
10/24/2017 Utilize a detector to collect underground test measurements for the Beam Dump Experiment (BDP) B1.31; B3.6; B3.11
9/8/2017 Corrective, preventive, and predictive maintenance and maintenance-related activities at Thomas Jefferson National Accelerator Facility (TJNAF) 81.3; Bl.27; Bl.31; 82.2; B2.3; B2.5
10/27/2016 NEPA Categorical Exclusion: Utility Energy Service Contract (UESC)- TJSO-SC-16-0 I B5.1; B5.16
10/22/2015 NEPA Categorical Exclusion: 10 23 15 83.10
6/11/2015 NEPA Categorical Exclusion: 06 11 15 B1.15;B1.16;B1.23;B1.33
2/10/2014 NEPA Categorical Exclusion: 33 MVA Electrical Power Substation Project at the Thomas Jefferson National Accelerator Facility B4.11;B4.12;B1.13
* 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