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Environment

Categorical exclusions are posted here to promote transparency and openness. Some actions may have environmental impacts that require an environmental assessment and a detailed analysis to determine the extent and severity of the impacts. For actions that have significant impacts or consequences to the environment or human health, RM prepares environmental impact statements.

Categorical Exclusions

• 2012
  • Pole Replacement on the Big Springs-Sidney 115kV Transmission Line, Deuel County, NE (1-5-12)
  • Weld Substation Control Building HVAC Replacement, Weld County, CO (2-3-12)
  • YellowTail Dam Tie Lines, Bighorn County, MT (1-25-12)
    
    
• 2011
• Archer-Ault 230-kV and Cheyenne to Owl Creek 115-kV Transmission Line Structure Replacements, Laramie County, WY and Weld County, CO (6-2-11)
• Badwater Substation Equipment and Containment Pond Upgrade, Fremont County, WY (9-27-11)
• Boyd-Valley Transmission Line OPGW Fiber Optic Installation, Larimer County, Colorado (5-18-11)
  
• Bucknam Temporary Tap, Natrona County, WY (12-15-11)
• Casper-Arminto Vegetation Management Maintenance, Natrona County, WY (3-29-11)
• Casper Service Center Floor Drain, Casper, WY (2/28/11)
• CCI-MP Transmission Line Access road Maintenance, Montrose County, CO (7-6-11)
• CCW-Mid Transmission Line Access Road Maintenance, Fremont County (3-24-11)
• Craig - Bears Ears - Hayden Substation Fiber Optic and Pole Installation, Moffat and Routt Counties, CO (5-17-11)
• Curecanti-Blue Mesa 115kV Transmission Line Road Maintenance and Structure Replacement, Gunnison County, CO (7-28-11)
• Curecanti Substation Containment Wall, Montrose County, CO (5-19-11).pdf
• Erie to Terry Street and Lyons to Longmont Northwest 11tkV Transmission Linse Structure Replacements, Boulder and Broomfield Counties, Colorado (5-16-11)
• Gore Pass Substation Pole Replacement, Grand County, CO (7-1-11).pdf
• Kayenta-Shiprock 230-kV Transmission Line, Nest Removal Project, San Juan County, New Mexico and Apache and Navajo Counties, AZ (10-25-11)
  
• LAP and Western Area Colorado to Missouri Balancing Authority - Formula Rate Adjustment for Transmission and Ancillary Services for the Rocky Mountain Region service area (CO, KS, NE, and WY) (5-19-11)
• Lovell-Thermopolis Access Road Repairs, Structure 57-6 to 84-2 and replacement of Struccture 61-7, Big Horn County, WY
• Lusk Substation Transformer Replacement, Lusk, Niobrara County, WY (1-24-11)
• Modifications to Hayden Substation, Routt County, CO (6-14-11)
• North Gunnison-Salida 115-kV Transmission Line Jumper Cable Replacements, Gunnison County, CO (6-14-11)
• Power Marketing and Operations Center - System Upgrades, Larimer County, CO (8-18-11)
• Rock River Microwave Fiber Optic Installation, Albany County, WY (6-17-11)
• Sagebrush Clearing at Transmission Line Structures Moffat and Rio Blanco Counties, CO (9-20-11)
• Stegall-Gering South Fiber Optic Installation, Scott's Bluff County, NE (7-14-11)
• Stegall-Wayside 230KV Access Road Extension, Dawes County (5-5-11).pdf
• Tree Cutting Cheyenne Field Office Maintenance Area, Spring 2011 (4-07-11)
• Upper Molina-Lower Molina 115 kV Road Maintenance and Structcure Replacement, Mesa County, CO (7-19-11)
• Weld Substation Transformer Placement, Greeley, Weld County, CO (1-7-11)
• Willow Creek Substation - Transformer Replacement and Substation Modifications, Grand County, CO (7-26-11)
  
  
• 2010
  • Ault Substation Expansion and Equipment Additiona, Weld County, CO (03/12/2010)
• Boysen-Copper Mountain Structure 98/1 Replacement Project, Fremont County, Wyoming (11/10/2010)
• Danger Tree Cutting Miracle Mile-Seminoe 115-kV and Miracle Mile-Platte 115-kV Transmission Lines, Carbon County, Wyoming, Summer 2010 (06/17/2010)
• Flaming Gorge-Vernal No. 3 Transmission Line Vegetation Management, Uintah County, Utah (01/22/2010)
• Fleming Substation Transformer Replacement, Fleming, Logan County, CO (12/20/10)
• Green Mountain Switchyard Stage 06 Spring 2010, Summit County, Colorado (05/25/2010)
• Hayden Substation Transformer Replacement (08/23/2010)
• Hot Line Order Work: Structure Hardware and Arm Replacement Sidney to Sterling Transmission Line, Logan County, Colorado, Cheyenne County, Nebraska (04/08/2010)
• Hygiene Substation Access Road Repairs (08/30/2010)
• Sectionalized SPENCE-DAVE JOHNSTON 230-kV line near Casper (05/31/2010)
• Sidney to Sterling Transmission Line Structure Replacement, Logan County, CO (12-22-10)
• Structure 57/2 Relocation on the Lovell-Thermoplis 115-kV Transmission Line(08/23/2010)
• Structure Replacement Hayden-Gore Pass 138-kV Transmission Line (Structure 25/5) Spring 2010 (04/15/2010)
• Structure Replacements and Reconductor Black Hollow to Ault Transmission Line, Weld County, CO (06/01/2010)
• Tree Cutting Cheyenne Field Office Maintenance Area, Fall 2010 (10/21/2010)
• Tree Cutting Cheyenne Field Office Maintenance Area, Summer 2010 (06/15/2010)
  
  
• 2009
• Boysen-Pilot Butte 115-kV Transmission Line Vegetation Management and Access Road Maintenance (12/02/2009)
• Guernsey Rural Substation to Limestone Substation, Platte County, WY (10-2-09)
• Ogallala Substation KY1A Transformer Replacement (11/16/2009)
• Structure Replacement, Guernsey Rural Substation to Limestone Substation, Platte County, WY (10-2-2009)
• Willoby Substation Construction Project -Weld County, Colorado (12/16/2009)
  
  
• Environmental Assessment (EA)
  
  
• Environmental Impact Statement (EIS)