Categorical Exclusion (CX) Determinations

Argonne Site Office Categorical Exclusion (CX) Determinations

Determination Date Name of Action: Description Categorical Exclusion Number
7/22/2011 ASO-CX-289 Building 366 Expansion, Operation, and Maintenance B3.6
5/18/2011 ASO-CX-288 Building 203 Upgrade and Operation of the Detector Laboratory B3.6
7/29/2011 ASO-CX-290 Building 108 Boilers 1-5 NOx Emission Reduction Project B2.5
5/9/2011 ASO-CX-285 Construction and Operation of the Materials Design Laboratory B3.6
3/3/2011 ASO-CX-280 Refurbishing of the Quantum Design SQUID Magnetometer B3.6
3/17/2011 ASO-CX-281 Biomass Production and Nitrogen Recovery in 21st Century Riparian Buffers B3.8
3/21/2011 ASO-CX-282 Building 211 Operation of the 20 MeV Electron Linac Accelerator and Upgrade to 50 MeV B3.10
5/9/2011 ASO-CX-284 Construction and Operation of the Advanced Protein Crystallization Facility B3.6
4/29/2011 ASO-CX-283 Building 315 Experiments to Demonstrate Ex-Vessel Core Coolability under Early Cavity Flooding Conditions B3.6
1/24/2011 ASO-CX-278 Building 362 Engine Test Facility Cell #3 Phase II Project B1.5; B3.6
* 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