Categorical Exclusion (CX) Determinations

Argonne Site Office Categorical Exclusion (CX) Determinations

Determination Date Name of Action: Description Categorical Exclusion Number
9/2/2010 ASO-CX-272 Removal of Building 370 FELIX Magnet B3.6
4/6/2010 ASO-CX-267 Enhanced Energy Storage Facilities to Support Expanding DOE Program B3.6
6/10/2010 ASO-CX-268 Biomass Production and Nitrogen Recovery in 21st Century Riparian Buffers B3.1(j)
8/20/2010 ASO-CX-270 Construction and Operation of Material Engineering Facility B3.6
9/1/2010 ASO-CX-271 Demolition and Recycling of the SIX Tesla Superconducting Dipole Magnet System B3.6
8/26/2010 ASO-CX-269 Generic Categorical Exclusion: Routine Grounds and Maintenance Activities B1.3; B1.11; B1.15
2/11/2010 ASO-CX-264 Application of Wastewater Treatment Filter Bed Sand B6.8
4/6/2010 ASO-CX-266 Building 212 Electron Microscopy Improvements B2.1
4/6/2010 ASO-CX-265 Indoor Bench-Scale Research Projects and Conventional Laboratory Operations B3.6
4/6/2010 ASO-CX-261 Installation of a 138kV Substation at Building 202 and Modification of Substation 549A B4.11
* 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