Categorical Exclusion (CX) Determinations

SLAC Site Office Categorical Exclusion (CX) Determinations

CX Determinations prior to October 2009 should be requested from David Osugi.

Determination Date Name of Action: Description Categorical Exclusion Number
1/31/2011 NEPA Categorical Exclusion: 01 31 11 B2.2
8/25/2011 NEPA Categorical Exclusion: 08 25 11 B1.15
* 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