Categorical Exclusion (CX) Determinations

Argonne Site Office Categorical Exclusion (CX) Determinations

Determination Date Name of Action: Description Categorical Exclusion Number
2/22/2018 ASO-CX-351 Off-site Use of UASs for Research Applications B3.2
9/18/2017 ASO-CX-349 Demonstration and Cost Analysis of an Acoustic Building Infiltration Measurement System B3.1
9/14/2017 ASO-CX-348 Field testing (in ocean) modified polymer foam for crude oil recovery B3.11
9/14/2017 ASO-CX-347 Culvert Repair - 300 Area- Freund Brook & Foot Path B1.3; B1.33
6/12/2017 NEPA Categorical Exclusion: ASO-CX-346 Bldg 206 Parking Lot Resurfacing B1.3
5/22/2017 NEPA Categorical Exclusion: ASO-CX-344 Site-Wide Categorical Exclusion - Habitat Maintenance Activities B1.3
5/22/2017 NEPA Categorical Exclusion: ASO-CX-345 Site-Wide Categorical Exclusion - Routine Grounds and Maintenance Activities B1.3, B1.11, B1.15
4/3/2017 NEPA Categorical Exclusion: ASO-CX-343 Demolition of Building 375D and Emergency Response Training during demolition process B1.23
4/4/2017 NEPA Categorical Exclusion: ASO-CX-342 Demolition of Bldg 375A and Emergency Response Training B1.23; B1.16; B1.17
3/30/2017 NEPA Categorical Exclusion: ASO-CX-341 B203 2MeV Decommissioning Project B1.23; B1.16; B1.17; B1.27
* 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