Categorical Exclusion (CX) Determinations

Argonne Site Office Categorical Exclusion (CX) Determinations

Determination Date Name of Action: Description Categorical Exclusion Number
11/17/2020 ASO-CX-378 Argonne Share of Next Generation Nanoscience Capabilities at the Nanoscale Science Research Centers B 1.3, B 3.15
11/9/2020 ASO-CX-377 Site Security Upgrade-Entry Exit Gates B 1.15, B 1.11, B 1.32, B 1.33
10/29/2020 ASO-CX-376 Ecosystem Biogeochemistry - Field Research B 3.8
9/2/2020 ASO-CX-375 Buildings 389B and 390 D&D Project B 1.23
2/20/2020 ASO-CX-371 Versatile Test Reactor Hydraulic Loop B 3.6
2/11/2020 ASO-CX-370 UChicago Argonne lease of space at Harper Court B 1.24
2/10/2020 ASO-CX-369 Developing a Deep Learning-Computer Vision Framework to Monitor Avian Interactions with Solar Energy Facility Infrastructure B3.3, B 3.8
5/5/2020 ASO-CX-368 Reduction of Severe Accident Uncertainties (ROSAU) Project B 3.6
4/1/2020 ASO-CX-372 Operation of the Transportation Research Facility (Buildings 300, 362, 370, 371, 373, 376) B 3.6
5/13/2020 ASO-CX-373 Modification and Continued Operation of the Materials Engineering B 3.6
* 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