Categorical Exclusions (CX) – Categorical exclusions are categories of actions that DOE has determined, by regulation, do not individually or cumulatively have a significant effect on the human environment and for which neither an environmental assessment nor an environmental impact statement is typically required. Title 10 Code of Federal Regulations Part 1021, National Environmental Policy Act Implementing Procedures, Appendices A and B to Subpart D, list DOE's categorical exclusions. Appendix A classes of actions are those actions considered to be general agency actions, such as awarding a contract or hiring personnel. Appendix B classes of actions include actions such as property transfers, erosion control, sampling and characterization of water, soil, rock, or contaminants, or, drilling wells for sampling or monitoring of groundwater. The table below provides a list (with links) of recent CX Appendix B determinations.

List of Recent Categorically Excluded Actions

NEPA ID NUMBERSHORT TITLEDATE SIGNEDDETERMINATION(S)
LM 01-24Site Transition and Associated Long-term Surveillance and Maintenance Actions at the Panna Maria, Texas, Disposal Site.  03/07/2024A1; A9; B1.3; B1.11; B1.24; B1.33; B3.1; B3.2; B5.3
LM 03-24Routine Administrative, Monitoring, and Maintenance Activities at Gnome-Coach, New Mexico, Site01/26/2024A1; A9; B1.3; B3.1
LM 42-23Routine Administrative, Monitoring, and Maintenance Activities at the Gasbuggy, New Mexico, Site12/20/2023A1; A8; A9; A11; B1.3; B3.1
LM 41-23Erosion Control and Repair at the Slick Rock, Colorado, Disposal Site10/13/2023B1.3
LM 40-23Site Transition and Long-Term Surveillance and Maintenance Activities at the Durita, Colorado, Disposal Site10/13/2023A1; A9; B1.3; B1.24; B3.1; B3.2
LM 39-23Fence Construction and Repair at the Shirley Basin South Disposal Site09/08/2023B1.11
LM 38-23Routine Administrative, Monitoring, and Maintenance Activities at the Parkersburg, West Virginia, Site 02/16/2024A1; A9; B1.3; B3.1
LM 36-23Routine Administrative, Monitoring, Inspection, and Maintenance Activities at the Salmon, Mississippi, Site09/12/2023A1; A8; A9; A11; B1.3; B3.1
LM 35-23Road Repairs at the L-Bar, New Mexico, UMTRCA Title II Disposal Site09/19/2023B1.3
LM 33-23Extraction Line Burial at the Rifle, Colorado, Disposal Site08/18/2023B1.33; B5.4
LM 32-23Routine Inspection, Monitoring, and Maintenance Activities at the Maybell West, Colorado, Disposal Site07/31/2023A.1; A9; B1.3; B3.1; B3.3
LM 30-23Routine Inspection, Monitoring, and Maintenance Activities at the Maybell, Colorado, Disposal Site07/31/2023A.1; A.9; B1.3; B3.1; B3.3
LM 29-23Gate Replacement at the Gas Hills North, Wyoming, Disposal Site07/21/2023B1.3
LM 28-23Subsurface Investigation, Bluewater, New Mexico, UMTRCA Title II Disposal Site08/03/2023A9; B3.1
LM 27-23Subsurface Investigation, L-Bar, New Mexico, UMTRCA Title II Disposal Site07/12/2023B3.1
LM 25-23Routine Administrative, Operations, and Maintenance Activities at Legacy Management Business Center in Morgantown, West Virginia08/01/2023A1; B1.3; B1.7; B1.15; B1.24; B1.30; B2.1; B2.2; B5.23; B6.4
LM 24-23Sediment and Groundwater Sampling at the Legacy Management Field Support Center at Grand Junction, Colorado06/20/2023B3.1
LM 23-23Routine Administrative, Inspection, Monitoring, and Maintenance Activities at the Lowman, Idaho, Disposal Site05/22/2023A1; A9; B1.3; B3.1; B3.3
LM 22-23Administrative Actions, Routine Operations, and Maintenance Activities at the Tuba City, Arizona, Disposal06/26/2023A1; A9; A12; B1.3; B1.7; B1.15; B1.19; B1.26; B1.33; B2.1; B2.2; B2.3; B2.5; B3.1; B5.1; B5.2; B5.4; B5.12; B5.16; B6.1
LM 21-23Routine Inspection, Monitoring, and Maintenance Activities at the Central Nevada Test Area, Nevada Offsite05/16/2023A1; A9; B1.3; B3.1
LM 20-23Routine Inspection, Monitoring, and Maintenance Activities at Rio Blanco, Colorado, Site05/12/2023A1; A9; B1.3; B1.7 B3.1
LM 19-23Routine Inspection, Monitoring, and Maintenance Activities at Rulison, Colorado, Nevada Offsite05/08/2023A1; A9; B1.3; B3.1
LM 18-23Routine Administrative, Maintenance, and Monitoring Activities at the Hallam, Nebraska, Decommissioned Reactor Site 02/09/2024A1; A9; B1.3; B3.1
LM 17-23Routine Inspection, Monitoring, and Maintenance Activities at Legacy Management Field Support Center at Grand Junction, CO04/26/2023A1; A9; B1.3; B3.1
LM 16-23Grazing and Haying at the Split Rock, Wyoming, Disposal Site 01/31/2024A1; A9; B1.3; B1.15; B1.24; B3.1
LM 15-23Routine Activities at Ambrosia Lake, New Mexico, Disposal Site04/11/2023A1; A9; B1.3; B3.1; B3.3
LM 14-23Building Acquisition and Design Activities for the LM Field Support Center, Grand Junction, Colorado04/10/2023A1; A8; A9; A11; B1.24
LM 13-23Geophysical Survey at Shiprock, New Mexico, Disposal Site07/18/2023B3.1
LM 12-23Site Inspections, Routine Monitoring Activities, and Interpretive Sign Installation at Pre-Gondola and Trencher, Montana, Plowshare Program08/31/2023A1; A9; B1.3; B3.1; B3.14
LM 11-23Routine Activities at the Gunnison, Colorado, Disposal and Processing Sites05/04/2023B1.3; B1.11; B1.24; B3.1
LM 10-23Water Line Installation at Bear Creek, Wyoming, UMTRCA Title II Disposal Site04/10/2023A9; B1.3; B5.5
LM 09-23Routine Monitoring and Maintenance Activities, Bronco, Colorado, Plowshares Program04/04/2023A.9; B1.3; B3.1
LM 08-23Install Groundwater Monitoring Wells at the Tuba City, Arizona, Disposal Site in 202302/27/2023B3.1
LM 07-23Tuba City, Arizona, Disposal Site Cleanout02/17/2023B1.3; B1.7; B1.22; B1.23; B1.27; B1.28; B1.31; B6.1; B6.8
LM 06-23Installation of Solar Panel Electric Vehicle Charging Supply Equipment at the Fernald Preserve, Ohio, Visitors Center02/09/2023B5.23; B5.16
LM 05-23Routine Actions at the Legacy Management Field Support Center (LMFSC) at Grand Junction, Colorado02/17/2023A.9; B1.3; B3.1
LM 04-23Installation of Beam Electric Vehicle ARC Solar Panel electric Vehicle Charging Station at the Rocky Mountain Metropolitan Airport (Jeffco Airport)02/09/2023B5.16; B5.23
LM 03-23Environmental Sampling and Mud Cap Inspections02/27/2023A1; A9; B3.1; B3.3; B1.24
LM 02-23Defense Related Uranium Mines (DRUM) Verification & Validation (V&V) Activities on Federal, State, and Private Lands02/17/2023B3.1; B3.2; B1.24
LM 01-23Routine Activities at Pinellas03/16/2023A1; A9; B1.3; B1.24; B3.1
LM 48-22Routine Activities at Grand Junction, Colorado, Grand Junction Regional Airport Calibration Pads Site02/23/2023A1; A9; B1.3; B3.1; B3.2
LM 47-22Routine Activities at Bear Creek, WY Disposal Site11/29/2022A1; A9; B1.3; B1.7; B1.11; B1.19; B2.2; B3.1; B3.3
LM 46-22Install Aerial Survey Quality Control Monuments and Perform Aerial Surveys11/22/2022B1.3; B3.1; B3.2
LM 45-22Continued Site Investigation of the Riverton, Wyoming, Processing Site11/04/2022B3.1
LM 44-22Phase II Supplemental Sampling and Materials Testing, Mexican Hat, Utah, UMTRCA Title I Disposal Site04/04/2023B3.1
LM 43-22Conduct Aerial Surveys at Weldon Spring Site, Missouri11/25/2022B1.3; B1.24; B3.1; B3.2
LM 42-22Install aerial survey quality control monuments and perform aerial surveys at Gunnison, CO, Disposal Site09/27/2022B3.1; B3.2
LM 41-22Unmanned Aircraft Survey of L-Bar, New Mexico, Disposal Site10/14/2022A.1; B1.3; B.3.1; B3.2
LM 40-22Conduct Routine Actions at the Naturita, Colorado, Processing Site10/24/2022A1; A9; B1.3; B1.7; B1.11; B1.19; B1.28; B1.31; B1.33; B2.2; B3.1; B3.3; B3.16; B5.16; B6.1
LM 39-22Installation of Electric Vehicle Supply Equipment at the Legacy Management Operations Center (LMOC) at Westminster, Colorado11/01/2022B1.3; B1.32; B5.23
LM 38-22Routine Site Inspections, Monitoring, and Maintenance at the Green River, Utah, Disposal Site09/27/2022A9; B1.3; B1.24; B3.1; B3.8
LM 37-22Install Electric Vehicle Supply Equipment at the Legacy Management Business Center11/22/2022B1.3; B1.32; B5.23
LM 36-22Groundwater Profiling and Well Installation09/30/2022B3.1; B1.24
LM 35-22Unmanned Aircraft Survey of Ambrosia Lake, New Mexico, Disposal Site 10/07/2022A.1; B1.3; B1.24; B3.1; B3.2
LM 34-22Routine Activities at L-Bar, NM Site11/03/2022A9; B1.3; B3.1
LM 33-22Install Electric Vehicle Supply Equipment at the Legacy Management Field Support Center08/23/2022B1.3; B1.32; B5.23
LM 32-22Install Trailers and Support Structures in the Navajo Engineering and Construction Authority Yard at the Shiprock, New Mexico, Disposal Site09/01/2023B1.3; B1.15; B1.24
LM 31-22Routine Inspections, Monitoring, and Maintenance at Durango, Colorado, Disposal/Processing Sites08/27/2022A9; B1.3; B3.1; B3.2; B3.8
LM 30-22Routine Inspections, Maintenance, and Monitoring Activities at Bluewater, New Mexico, Disposal Site07/21/2022A1; A9; B1.3; B3.1; B3.3
LM 29-22Defense-Related Uranium Mines (DRUM) Verification and Validation (V&V) Visits on Navajo Nation Tribal Lands08/27/2022B3.1; B1.24
LM 28-22Routine Inspections, Maintenance, and Monitoring Activities; Aviation Activities; and Well Installation at the Shiprock, New Mexico, Disposal Site07/08/2022B1.3; B3.1; B3.2
LM 27-22Routine Sampling and Minor Maintenance, Riverton, Wyoming, Processing Site11/04/2022B1.3; B1.11; B2.5; B3.1
LM 26-22Installation of an Interim Water Treatment Unit and Associated Infrastructure at the Shiprock, New Mexico, Disposal Site 12/26/2023B1.3; B1.11; B1.15; B1.24; B1.26
LM 25-22Routine Site Activities at Ambrosia Lake, New Mexico, Disposal Site08/22/2022A.1; A.9; B1.3; B3.1; B3.3
LM 24-22Routine Inspections, Monitoring, and Maintenance at the Rifle, Colorado, Disposal and Processing Sites08/01/2022A1; A9; B1.3; B3.1; B3.3
LM 23-22Acquisition of License in Shiprock, New Mexico08/16/2022A1; B1.24
LM 22-22ULP Routine Activities for Reclamation09/12/2022A9; A11; B1.3; B1.11; B1.20; B1.23; B1.28; B3.1
LM 21-22Routine Inspections, Monitoring, and Maintenance at the Shirley Basin South, Wyoming, Disposal Site07/11/2022A1; A9; B1.3; B3.1; B3.3
LM 20-22Routine Activities at George West, Texas, Calibration Model Facility07/12/2022A1; A9; B1.3; B1.24; B3.1
LM 19-22Routine Activities at Grants, New Mexico, Calibration Model Facility07/12/2022A1; A9; B1.3; B1.24; B3.1
LM 18-22Unmanned Aircraft Survey at Maybell West, Colorado, Disposal Site07/21/2022A.1; B1.3; B1.24; B3.1; B.3.2
LM 17-22AS&T Disposal Cell Cover Study at L-Bar, New Mexico, Disposal Site08/04/2022A9; B1.3; B3.1
LM 16-22Maybell Colorado, Disposal Site, sUAS08/01/2022A.1; B1.3; B1.24; B3.1; B.3.2
LM 15-22Install Interpretive Sign at Pre-Schooner II, Idaho, Site06/09/2022B3.14
LM 14-22Routine Inspections, Monitoring, and Maintenance at Lakeview, Oregon, Disposal and Processing Sites06/21/2022B1.3; B3.1
LM 13-22Routine Activities at Casper, Wyoming, Calibration Model Facility06/21/2022A1; A9; B1.3; B1.24; B3.1
LM 12-22Routine Inspections, Monitoring, and Maintenance at Sherwood, WA, Disposal Site05/23/2022B1.3; B1.11; B1.26; B1.33; B2.5; B3.1
LM 11-22Lease for the Navajo Outreach Office at the Window Rock, AZ, Site05/17/2022B1.24
LM 10-22Routine Maintenance and Drilling, Monument Valley, Arizona, Processing Site05/06/2022B1.3; B3.1; B3.2
LM 09-22Routine Activities and Real Property and Aviation Actions at Spook, Wyoming, Disposal Site04/28/2022A1; A9; B1.3; B1.24; B3.1; B3.2; B3.3
LM 08-22Routine Actions at the Edgemont, South Dakota, UMTRCA Title II, Disposal Site06/07/2022A1; B1.3; B1.11; B1.24; B3.1; B3.3
LM 07-22Osprey Nesting Pole Installation by Xcel Energy at Legacy Management Field Support Center at Grand Junction12/20/2022B1.20; B4.6
LM 06-22Routine Inspection, Maintenance, and Monitoring Activities at Slick Rock, Colorado, Disposal/Processing Site08/02/2022A9; B1.3; B1.11; B3.1
LM 05-22Shiprock, NM Many Devils Wash Removal06/13/2022B1.3; B3.1
LM 04-22Conduct Aerial Surveys at Rocky Flats Site, Colorado03/29/2022B1.3; B3.1; B3.2; B1.24
LM 03-22Routine Activity at the Shiprock, New Mexico, Disposal Site03/07/2022B1.3; B3.1; B3.2
LM 01-22Routine Inspections, Monitoring, and Maintenance at the Falls City, Texas, Disposal Site (Uranium Mill Tailings Radiation Control Act Title I)02/25/2022B1.3; B3.1
LM 19-21Conduct Delta Building Move, Harrison, Ohio11/16/2021B1.7; B1.15; B1.24; B1.30
LM 18-21 (Revised)Defense-Related Uranium Mine (DRUM) Verification and Validation (V&V) Visits - Colorado10/25/2021A9; A11; B1.3; B1.11; B1.20; B1.24; B1.28; B3.1; B3.2
LM 17-21Perform Aerial Surveys at the Green River, Utah, Disposal Site09/23/2021B1.3; B3.1; B3.2; B1.24
LM 16-21Routine surface and groundwater monitoring, inspections, and site maintenance at the Slick Rock, CO, Processing Sites09/21/2021B1.3; B1.11; B3.1
LM 15-21Install and Maintain Temporary Offsite Water Flow Sensor at L-Bar, New Mexico, Disposal Site09/03/2021A9; B1.3; B3.1; B1.24
LM 14-21Renew Access Agreement at the Gunnison Processing Site08/23/21B1.3; B3.1
LM 13-21Flight Operations_Aerial Survey Mexican Hat UT Disposal Site08/27/2021B3.2
LM 12-21Conduct pollinator studies at Bluewater, NM, UMTRCA Title II Disposal Site07/16/2021B3.1; B3.3 
LM 11a-21Amendment to LM 11-21: Jamestown and Sullivan’s Travels DRUM Safeguarding Projects on Private Lands in Colorado08/15/2022A1; A9 B1.3; B1.11; B1.20; B1.24; B1.28; B1.33; B3.1; B3.2; B6.1
LM 11-21Safeguarding DRUM mining features located on state, tribal, and private lands07/12/2021A1; A9 B1.3; B1.11; B1.20; B1.24; B1.28; B1.33; B3.1; B3.2; B6.1
LM 10-21Routine Inspections, Monitoring, and Maintenance at Rifle, Colorado, Disposal and Processing Sites08/27/2021A9; B1.3; B1.11; B3.1; B3.2; B3.8
LM 09-21General Site Activities Including Site Visits and Minor Maintenance07/14/2021A9; B1.3; B3.1
LM 08-21Conduct Routine Actions at Grand Junction, Colorado, Disposal Site09/02/2021A1; A8; A9; A12; A13; B1.2; B1.3; B1.4; B1.6; B1.7; B1.11; B1.15; B1.23; B1.24; B1.27; B1.31; B1.33; B2.1; B2.2; B2.3; B2.5; B3.1; B3.6; B3.8; B5.1; B5.2; B5.3; B5.4; B5.12; B5.16; B6.1
LM 07a-21Amendment to Unmanned Aerial Surveys at Sherwood, Washington, Disposal Site09/15/2021B1.3; B3.1; B3.2; B1.24
LM 07-21Unmanned Aerial Surveys at Sherwood, Washington, Disposal Site05/27/2021B1.3; B3.1; B3.2
LM 06-21Routine Inspections, Monitoring, and Maintenance at Durango, Colorado, Disposal/Processing Sites04/21/2022A9; B1.3; B3.1; B3.2
LM 05a-21Amendment to Unmanned Aerial Surveys at Lakeview, Oregon, Disposal Site09/03/2021B1.3; B3.1; B3.2; B1.24
LM 05-21Unmanned Aerial Surveys at Lakeview, Oregon, Disposal Site06/02/2021B1.3; B3.1; B3.2
LM 04-21Install and Maintain Aerial Survey Quality Control Monuments, Perform Aerial Surveys, and Abandon Wells at the Naturita, Colorado, Disposal Site05/13/2021B1.3; B3.1; B3.2; B5.3
LM 03-21Conduct Downstream Alternative Sampling at Naturita, Colorado, Processing Site05/10/2021B3.1
LM 02-21Well abandonment and site reclamation at Bronco Plowshare Site, Rio Blanco County, CO05/17/2021A9; B1.3; B3.1; B5.3
LM 01-21Conduct Borehole Drilling and Piezometer Installations04/19/2021B1.3; B3.1
LM 11-20Install and Maintain Aerial Survey Quality Control Monuments and Perform Aerial Surveys at the Tuba City, Arizona, Disposal Site02/03/2021B1.3; B3.1; B3.2
LM 06a-19Defense-Related Uranium Mine (DRUM) Verification and Validation (V&V) Visits - Colorado02/01/2021B3.1; B3.2
LM 23-20Regenerative Grazing Study, Shirley Basin South, Wyoming01/19/2021B1.24; B3.1; B3.8
LM 14-20Site Transition and Associated Long-Term Surveillance and Maintenance Actions at Split Rock, Wyoming, Disposal Site12/09/2020A1; A9; B1.3; B1.11; B1.24; B1.33; B3.1; B3.2; B3.3
LM 21-20Flush Mount Monitoring Wells Conversion, Hallam, Nebraska, Decommissioned Reactor Site10/29/2020B3.1
LM 05-20Removal and Replacement of Backup Power Generator, Morgantown, West Virginia, Site10/01/2020B1.27; B1.31; B4.6
LM 08a-20Amendment to LM 08-20 Temporary Space Assessment and Construction at Building 7, Grand Junction Site, Colorado11/26/2021B2.1
LM 08-20Temporary Space Assessment and Construction at Building 7, Grand Junction Site, Colorado10/01/2020B2.1
LM 17-20Administrative Tasks to Support Defense-Related Uranium Mines Safeguarding Activities on Federal, State, and Private Land09/24/2020A1; A9; A11
LM 03-20Install Institutional Control Markers at Chariot, Alaska, Site09/17/2020A.8; B3.1; B3.2
LM 15-20Geoprobe Groundwater Sampling08/27/2020B3.1
LM 09-20Install and Maintain Aerial Survey Quality Control Monuments and Perform Aerial Surveys08/25/2020B1.3; B3.1; B3.2
LM 13-20Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys08/18/2020B1.3; B3.1; B3.2
LM 20-20Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys08/14/2020B1.3; B3.1; B3.2
LM 06-20Well Abandonment and Site Reclamation at Bronco, Colorado, Site in Rio Blanco County, Colorado08/07/2020B1.3; B3.1; B5.3
LM 12-20Install and Maintain Aerial Survey Quality Control Monuments and Perform Aerial Surveys at the Grand Junction, Colorado, Disposal Site08/07/2020B1.3; B3.1; B3.2
LM 1-209Building 7 Parcel Phase 1 at the LM Office at Grand Junction: Investigative and Geotechnical Work08/07/2020B3.1
LM 10-20Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys07/28/2020B1.3; B3.1; B3.2
LM 07-20Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys07/22/2020B1.3, B3.1, B3.2
LM 03-20Reporting of Excess Real Property Determination to U.S. General Services Administration (GSA) for Subsequent GSA Disposal of the Colonie, New York, Site on Behalf of DOE07/15/2020B1.24; B1.36
LM 04-20Applied Studies and Technology, Tracer Testing at Riverton, Wyoming, Processing Site06/11/2020B1.3; B3.1
LM 02-20Unmanned Aircraft Systems (UAS) Operations at the University of Arizona Santa Rita Experimental Range, Pima County, Arizona04/22/2020A1; B3.2
LM 25-19Redevelopment of Standpipe (MW-02) at the Rifle, Colorado, Disposal Site04/20/2020B1.3; B3.1
LM 01-20Evapotranspiration Conversion Cover Pilot Study at the Grand Junction, Colorado, Disposal Site03/09/2020B1.3; B3.1; B3.2
LM 28-19Ongoing Operations and Routine Actions at the Legacy Management Business Center (LMBC)12/09/2019A1; B1.3; B1.7; B1.15; B1.24; B1.30; B2.1; B2.2; B6.4
LM 32-19Construction easement and property transfer at the FUSRAP Middlesex South, New Jersey, Site10/28/2019A1; B1.24
LM 31-19Defense-Related Uranium Mine (DRUM) Inventory, Verification and Validation (V&V) - Arizona09/23/2019B3.1; B3.2
LM 30-19Defense-Related Uranium Mine (DRUM) Inventory, Verification and Validation (V&V) - North Dakota09/23/2019B3.1; B3.2
LM 29-19Defense-Related Uranium Mine (DRUM) Inventory, Verification and Validation (V&V) - Montana09/23/2019B3.1; B3.2
LM 27-19Building 7 fiber Optic Line and Operable Gate Installation, Grand Junction, Colorado09/16/2019B1.3; B1.7; B1.11
LM 26-19Road Erosion Repair Work at L-Bar, New Mexico, Disposal Site08/15/2019B1.3
LM 24-19Road Erosion Repair Work at Bluewater, New Mexico, Disposal Site08/15/2019B1.3
LM 23-19Lease aircraft to provide personnel transport to and from Amchitka, Alaska, Site08/06/2019B3.2
LM 22-19Install and Maintain aerial Survey Monuments and Perform Aerial Surveys at the Lakeview, Oregon, Disposal Site08/05/2019B1.3; B3.1; B3.2
LM 21-19Installation of Quality Control Monuments and Perform Aerial Surveys at the Burrell, Pennsylvania, Disposal Site07/06/2019B1.3; 3.1; 3.2
LM 20-19Installation of Quality Control Monuments and Perform Aerial Surveys at the Canonsburg, Pennsylvania, Disposal Site07/16/2019B1.3; 3.1; 3.2
LM 19-19Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys and the Sherwood, Washington, Disposal Site07/30/2019B1.3; B3.1; B3.2
LM 18-19Install Fence Flagging at the Gunnison, Colorado, Disposal Site07/10/2019B1.3; B1.20
LM 17-19Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys at the Bear Creek, Wyoming, Disposal Site07/17/2019B1.3; B3.1; B3.2
LM 16-19Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys at the Spook, Wyoming, Disposal Site07/03/2019B1.3; 3.1; B3.2
LM 15-19Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys at the Edgemont, South Dakota, Disposal Site07/03/2019B1.3; B3.1; B3.2
LM 14-19Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys at the Shirley Basin South, Wyoming06/26/2019B1.3; B3.1; B3.2
LM 13-19Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys at the Rifle, Colorado, Disposal Site06/19/2019B1.3; B3.1; B3.2
LM 12-19Pilot Test for Biological Treatment of Contaminated Groundwater at the Tuba City, Arizona, Disposal Site07/29/2019B1.26; B3.1
LM 11-19Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys at the Ambrosia Lake, New Mexico, Disposal Site05/30/2019B1.3; B3.1; B3.2
LM 10-19Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys at the Bluewater, New Mexico, Disposal Site05/29/2019B1.3; B3.1; B3.2
LM 09-19Corrective Action Site Investigation, Amchitka, Aleutian Islands, Alaska04/25/2019B1.3; B3.1
LM 08-19ULP Routine Maintenance07/05/2019A9; A11; B1.3; B1.11; B1.20; B1.28; B3.1; B3.2
LM 07-19Drilling and new well installations at the Monument Valley, Arizona, Processing Site04/25/2019B3.1
LM 06-19Defense-Related Uranium Mine (DRUM) Verification and Validation (V&V) Visits - Wyoming04/18/2019B3.1; B3.2
LM 05a-19Defense-Related Uranium Mine (DRUM) Verification and Validation (V&V) Visits – South Dakota09/09/2022B1.24; B3.1; B3.2
LM 05-19Defense-Related Uranium Mine (DRUM) Verification and Validation (V&V) Visits – South Dakota04/18/2019B3.1; B3.2
LM 04a-19Defense-Related Uranium Mines (DRUM) Verification and Validation (V&V) Visits—New Mexico08/03/2022B3.1; B3.2; B1.24
LM 04-19Defense-Related Uranium Mine (DRUM) Verification and Validation (V&V) Visits – New Mexico04/18/2019B3.1; B3.2
LM 03a-19Amendment to Defense-Related Uranium Mine Verification and Validation Visits—Colorado10/15/2021B3.1; B3.2; B1.24
LM 03-19Defense-Related Uranium Mine (DRUM) Verification and Validation (V&V) Visits - Colorado04/18/2019B3.1; B3.2
LM 02-19North Terrace Erosion Repairs-Phase II at the Canonsburg, PA, Disposal Site07/16/2019B1.3
LM 01-19DRUM Verification and Validation Visits - Utah03/20/2019B3.1; B3.2
LM 29-18Borehole and Mud Pit Sampling and site cleanup at the Utah, Utah, Plowshare Site12/28/2018B1.3; B3.1; B5.3; B6.1
LM 27-18Site Transition at the Bayo Canyon Aggregate Area, New Mexico02/22/2019A1; A9; B1.3; B3.1; B3.2
LM 26-18Routine Actions at the Maybell West, Colorado, Disposal Site09/28/2018B1.3; B1.24; B3.1
LM 25-18Routine Actions at the Mexican Hat, Utah, Disposal Site10/04/2018B1.3; B3.1
LM 24-18Routine Actions at the Maybell, Colorado, Disposal Site09/28/2018B1.3; B3.1
LM 22-18Site transition and associated long-term surveillance and maintenance actions at the Durita, Colorado, Disposal Site.12/04/2018A1; A9; B1.3; B1.24; B3.1; B3.2
LM 21-18Site Access Agreement for Fawn Creek Property at Rio Blanco, Colorado, Site07/20/2018B1.24
LM 20-18Vegetation monitoring, weed control, fence repair, and routine maintenance at Gunnison, Colorado, Disposal Site07/11/2018B1.3; B3.1
LM 18-18Rocky Mountain Metropolitan Airport, Westminster, CO, GSA Parking07/20/2018B1.3; 1.15; 1.24
LM 17-18AS&T Soil Sampling for Analytical Studies, Lakeview,Oregon, Disposal Site06/06/2018B3.1; B3.8
LM 16-18Install Aerial Survey Monuments and Conduct Aerial Surveys at the L-Bar, New Mexico, Disposal Site06/05/2018B1.3; B3.1; B3.2
LM 15-18Install Aerial Survey Monuments at the Durango, Colorado, Disposal Site08/02/2018B1.3; B3.1; B3.2
LM 14-18Install aerial survey monuments at the Shiprock, NM Disposal Site05/03/2018B1.3
LM 13-18Building 7 GSA transfer to DOE; located at 2599 Legacy Way, Grand Junction, Colorado04/17/2018B1.3
LM 12-18Install aerial survey monuments at the Maybell West, CO Disposal Site05/03/2018B1.3
LM 11-18Install Aerial Survey Monuments at the Maybell, CO Disposal Site05/03/2018B1.3
LM 10-18Proposed Lease and Actions to Occupy Additional Office Space03/30/2018B1.7; B1.15; B1.24; and B1.30
LM 09-18Abatement Activity at Piqua, Ohio, Decommissioned Reactor Site04/18/2018B1.16; B1.17; B1.34; B1.24
LM 08-18Long-Term Lease and Renovation of the Log Cabin in the DOE Grand Junction Office Historic District, Grand Junction, Colorado04/05/2018B1.3
LM 07-18Install Aerial Survey Monuments, Conduct Road Maintenance, and Install Gate at the Mexican Hat, Utah, UMTRCA Title I Disposal Site04/09/2018B1.3; B1.13
LM 06-18Native Grass Reseeding at Burrell, PA, Disposal Site04/05/2018B1.3
LM 05-18Repair a Potable Water Line Leak at Tuba City, AZ site04/30/2018B1.3
LM 04-18Routine Sampling, Inspection, and Maintenance at the Mexican Hat, Utah, Disposal Site02/14/2018A1; A8; A9; A11; B1.3; B1.11; B1:19; B1.33; B3.1; B3.2; B3.8
LM 42-17Conduct Aerial Surveys at the Tuba City, Arizona, Disposal Site01/23/2018B3.2
LM 39-17Conduct Aquifer Response Tests at the Tuba City, Arizona, Disposal Site11/13/2017B3.1
LM 27-17Conduct Testing of an Autonomous Truck on Roads at Rocky Flats Site—Rocky Flats, Colorado07/07/2017B1.24; and B3.11
LM 24-17Transition for the Formerly Utilized Sites Remedial Action Program (FUSRAP) Windsor, Connecticut, Site01/03/2018B1.30
LM 23-17Condition Assessment of the Alternate Water Supply System, Riverton, Wyoming, Processing Site10/11/2017B1.3
LM 22-17Conduct a study on effects of soil-forming processes on cover engineering properties at the Shirley Basin South, Wyoming, Disposal Site08/17/2017B3.1 and B3.8
LM 21-17Conduct Pedogenesis Study at the Lakeview, OR Site10/18/2017B3.1 and B3.8
LM 18-17Conduct LiDAR Surveys and Install Weather Monitoring Station at the Mexican Hat, Utah, UMTRCA Title I Disposal Site07/03/2017B1.3, B2.2, and B3.2
LM 17-17Road Maintenance at the Naturita, Colorado, Disposal Site07/31/2017B1.3
LM 15-17Abatement Activity at the Log Cabin, Grand Junction, Colorado, Site07/21/2017B1.3 and B6.1
LM 14-17Revised Groundwater Compliance Action Plan at the New Rifle Processing Site—Rifle, Colorado07/06/2017B1.3; B3.1; and B3.2
LM 13-17Well Removal (Abandonment) at Old Rifle, Colorado, Processing Site07/03/2017B3.1
LM 12-17Blocking McDonald Ditch Drainage Structure, Near Grand Junction, Colorado, Disposal Site05/25/2017B1.3 and B1.33
LM 11-17Shipment of Residual Radioactive Material (RRM) from Shiprock, New Mexico, Disposal Site to Grand Junction, Colorado, Disposal Site07/06/2017B1.3 and B6.1
LM 09-17Routine and Non-Routine Actions at the Edgemont, South Dakota, Disposal Site04/27/2017B1.3; B1.11; B1.13; B1.15; B1.20; B1.24; B1.33; B3.1; B3.2
LM 08-17Site Transition and Associated Long-Term Surveillance and Maintenance Actions at the Panna Maria, Texas, Site04/21/2017B1.3, B1.7, B1.11, B1.13, B1.15, B1.24, B1.30, B1.33, B3.1, and B3.2
LM 07-17Site Transition and Associated Long-Term Surveillance and Maintenance Actions at the Ray Point, Texas, Site04/21/2017B1.3, B1.7, B1.11, B1.13, B1.15, B1.24, B1.30, B1.33, B3.1, and B3.2
LM 02-17Site Activities and Associated Maintenance at the Grand Junction Regional Airport, Colorado, Calibration Model Facility02/13/2017B1.3, B1.24, B3.1, B3.2, and B6.1
LM 26-16Install New Groundwater Monitoring Wells at the Tuba City, Arizona, Disposal Site01/12/2017B3.1
LM 25-16Unmanned Aerial Systems (UAS) Operations at the Grand Junction, Colorado, Disposal Site10/31/2016B3.1 and B3.2
LM 22-16Plowshare Program Site Visits in Colorado, Idaho, Montana, Utah, and Wyoming09/12/2016A9 and B3.2
LM 21-16Unmanned Aerial Systems (UAS) Operations at the Moab, Utah, Disposal Site09/12/2016B3.1 and B3.2
LM 19-16Renewal of Lease for Westminster, Colorado, Office Space08/15/2016B1.3 and B1.24
LM 18-16Renewal of Lease for Fernald, Ohio, Office Space08/15/2016B1.3 and B1:24
LM 15-16Conduct Fence Installation and Road Repair at the L-Bar, New Mexico, Disposal Site07/19/2016B1.3
LM 13a-16Amendment to LM 13-16, Conduct Verification and Validation Activity on DRUM Sites04/17/2017B3.1 and B3.2
LM 13-16Conduct Verification and Validation Activity on Defense-Related Uranium Mine Sites on U.S. Bureau of Land Management Property09/12/2016B3.1
LM 10-16Unmanned Aerial Systems Operations at the Shiprock, New Mexico, Disposal Site07/13/2016B1.3 and B3.2
LM 08-16Well Abandonment and Equipment Transfer at the Pinellas County, Florida, Site06/16/2016B1.24, B1.30, B1.31  and B3.1
LM 07-16Conduct Interim Treatment and Environmental Monitoring at the Tuba City, Arizona, Disposal Site06/16/2016B1.26 and B3.1
LM 05-16Air Stripper Removal and Disposal at the Pinellas County, Florida, Site04/19/2016B1.24
LM 04-16Conduct Pedogenesis Study at the Falls City, Texas, Disposal Site04/22/2016B3.1
LM 03-16Conduct Pedogenesis Study at the Blue Water, New Mexico, Disposal Site06/16/2016B3.1
LM 01-16Evaporation Pond Removal and Verification and Associated Road Maintenance, Durango, Colorado, Disposal Site05/09/2016B1.3 and B6.1
LM 32-15Install Four New Groundwater Monitoring Wells at the Shiprock, New Mexico, Disposal Site03/28/2016B3.1
LM 21-15Lease of the Cabin Portion of Building 12, Grand Junction, Colorado, Site09/14/2015B1.24 and B1.25
LM 18-15Groundwater Monitoring and Associated Actions at the Green River, Utah, Disposal Site10/23/2015B1.24, B1.3 and B3.1
LM 17-15Field Studies to include installing groundwater monitoring wells, obtaining groundwater and sediment samples, land surveys, measuring surface water discharge, and conducting miscellaneous field activities near the former Riverton, Wyoming, Processing Site08/17/2015B3.1
LM 16-15Remove and reuse/recycle sulfuric acid from an onsite tank at the Tuba City, AZ disposal site09/24/2015B1.28
LM 07-15Operations, Maintenance, Repairs, Modifications, and Ongoing CERCLA Remedy-Related Actions and Site Facility Support Activities for the Monticello, Utah, Sites03/31/2015B1.3; B1.11; B1.24; B1.26; B1.33; B2.5; B3.1; B6.1
LM 06-15Obtain subsurface soil samples from five locations on the San Juan River floodplain near Shiprock, New Mexico, Disposal Site03/26/2015B3.1
LM 03-15Maintenance and Related Activities at the Burris Park, California, Site03/11/2015B1.3, B1.11, B1.24, B3.1, B6.1
LM 28-14Aerial Photography and Topographic Mapping of the Weldon Spring, Missouri, Site12/23/2014B3.2
LM 22-14Stanford Linear Accelerator Center-Science Focus Area (SLAC-SFA) Geoprobe Sampling Near the Naturita, Colorado, Title I Uranium Mill Tailings Radiation Control Act Processing Site10/14/2014B3.1
LM 21-14Onsite and Offsite Bioremediation Injections and Related Activities at the Pinellas County, Florida, Site10/14/2014B3.1, B6.1, B6.2
LM 14-14Installation and Redevelopment of Groundwater Monitoring Wells at the Salmon, Mississippi, Site08/26/2014B3.1(c)
LM 13-14Aerial photography and mapping of the Gunnison, Colorado, Processing Site09/09/2014B3.2
LM 07-14Vapor Intrusion Mitigation Pilot Study and Potential Full-Scale Sub-Slab Depressurization System Design/Build for Building 100 at the Pinellas County, Florida, Site in Largo, Florida07/10/2014B3.1, B6.1 and B6.2
LM 06-14Install three groundwater monitoring wells at the Shoal, Nevada, Site07/02/2014B3.1(c)
LM 05-14Storm Shelter Installation and Related Activities at the Weldon Spring, Missouri, Site06/11/2014B1.15 and B3.1
LM 04-14Abandon five test holes and remove contaminated soils from the associated well pads at the Chariot, Alaska, Site05/15/2014B3.1 and B6.1
LM 01-14Determination of Excess Real Property05/01/2014B1.36
LM 33a-11Routine Monitoring Maintenance, Site Activities, Non-Routine Actions and Administrative Actions at the Falls City, Texas, Disposal Site05/01/2017B1.3; B1.15; B3.1 and B3.2
LM 29a-11Amendment to LM 29-11, routine monitoring, maintenance, general site actions, non-routine actions, and administrative actions at the Cannonsburg, PA disposal site.03/24/2017B1.3; B1.24; B3.1 and B3.2

 

LM NEPA determination tracking numbers on this webpage (above) are identified as LM document number-year (LM 00-00). LM NEPA determination forms posted through the link to the DOE website (below) use a different tracking number such as CX-009399.

Office of NEPA Policy and Compliance - All Categorical Exclusion Determinations: Legacy Management