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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 NUMBER

SHORT TITLE

DATE SIGNED

DETERMINATION(S)
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 Site08/05/2019

B1.3; 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 Site07/30/2019

B1.3; 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 Site07/17/2019

B1.3; B3.1; B3.2

LM 16-19Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys at the Spook, Wyoming, Disposal Site07/03/2019

B1.3; 3.1; B3.2

LM 15-19

Install and Maintain Aerial Survey Monuments and Perform Aerial Surveys at the Edgemont, South Dakota, Disposal Site

07/03/2019

B1.3; 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 Site07/29/2019

B1.26; 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 09-19

Corrective Action Site Investigation, Amchitka, Aleutian Islands, Alaska

04/25/2019B1.3; 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 05-19Defense-Related Uranium Mine (DRUM) Verification and Validation (V&V) Visits – South Dakota04/18/2019B3.1; B3.2
LM 04-19Defense-Related Uranium Mine (DRUM) Verification and Validation (V&V) Visits – New Mexico04/18/2019B3.1; B3.2
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 Site12/28/2018

B1.3; 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 21-18

Site Access Agreement for Fawn Creek Property at Rio Blanco, Colorado, Site

07/20/2018B1.24
LM 20-18

Vegetation monitoring, weed control, fence repair, and routine maintenance at Gunnison, Colorado, Disposal Site

07/11/2018B1.3; B3.1
LM 18-18

Rocky Mountain Metropolitan Airport, Westminster, CO, GSA Parking

07/20/2018B1.3; 1.15; 1.24
LM 17-18AS&T Soil Sampling for Analytical Studies, Lakeview,Oregon, Disposal Site06/06/2018

B3.1; B3.8

LM 16-18

Install Aerial Survey Monuments and Conduct Aerial Surveys at the L-Bar, New Mexico, Disposal Site

06/05/2018B1.3; B3.1; B3.2
LM 15-18Install Aerial Survey Monuments at the Durango, Colorado, Disposal Site08/02/2018B1.3; B3.1; B3.2
LM 14-18

Install aerial survey monuments at the Shiprock, NM Disposal Site

05/03/2018B1.3
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 Space03/30/2018

B1.7; 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 17-17

Road Maintenance at the Naturita, Colorado, Disposal Site

07/31/2017B1.3
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 02-17

Site Activities and Associated Maintenance at the Grand Junction Regional Airport, Colorado, Calibration Model Facility

02/13/2017B1.3, B1.24, B3.1, B3.2, and B6.1
LM 26-16Install New Groundwater Monitoring Wells at the Tuba City, Arizona, Disposal Site

01/12/2017

B3.1

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 Space08/15/2016

B1.3 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 Site07/13/2016

B1.3 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 05-16

Air Stripper Removal and Disposal at the Pinellas County, Florida, Site

04/19/2016B1.24
LM 04-16Conduct Pedogenesis Study at the Falls City, Texas, Disposal Site

04/22/2016

B3.1
LM 03-16

Conduct Pedogenesis Study at the Blue Water, New Mexico, Disposal Site

06/16/2016B3.1
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 Site08/17/2015

B3.1

LM 16-15Remove and reuse/recycle sulfuric acid from an onsite tank at the Tuba City, AZ disposal site09/24/2015

B1.28

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, Site10/14/2014

B3.1, 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 Site09/09/2014

B3.2

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, Site

06/11/2014

B1.15 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 Property05/01/2014

B1.36

LM 33a-11

Routine Monitoring Maintenance, Site Activities, Non-Routine Actions and Administrative Actions at the Falls City, Texas, Disposal Site

05/01/2017B1.3; 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