Desert Southwest Environmental Review
The Environmental Team at Desert Southwest (DSW) provides specialized support to the Region to maintain compliance with the National Environmental Policy Act (NEPA). Some actions may have environmental impacts that require an environmental assessment (EA) 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, environmental impact statements (EIS) are prepared. Other minor actions produce documents like categorical exclusions (CX). In order to promote transparency and openness, the various types of environmental documents are posted below.
Environmental Impact Statements (EIS)
- Southwest Intertie Project
- Southline Transmission Project, DOE/EIS-0474
Environmental Assessments (EA)
- Apache GT5 & GT6 Generation Project, DOE/EA-2238
- Arizona Solar 1 Interconnection Project, DOE/EA-2098
- Bouse Upgrade Project, DOE/EA-2106
- Cliffrose Solar Energy Interconnection Project, DOE/EA-1989
- Crossman Peak Communications Facility Project, DOE/EA-2023
- Davis-Kingman 69kV Rebuild Project EA
- Glen Canyon-Rogers 230/345-kV EA for Operations & Maintenance and Integrated Vegetation Management Programs, DOE/EA-2008
- Herbicide Use at Three Substations in Imperial County California and Maricopa and Yuma Counties, Arizona
- Townsite Solar Project Transmission Line Project, DOE/EA-1960
- ED2 to Saguaro No. 2 Transmission Line Rebuild Project, DOE/EA-1972
- MPP-Q01 Interconnection Project, DOE/EA-2208
- Parker-Blythe No. 2 Transmission Line Rebuild Project, DOE/EA-2168
- Parker-Headgate Rock and Parker-Bouse Rebuild Project, DOE/EA-1987
- Parker-Davis Transmission System Routine Operation and Maintenance Project and Integrated Vegetation Management Program EA, DOE/EA-1982
- Ridgenose Solar Interconnection Project EA
- Sterling Solar 1 Interconnection Project, DOE/EA-2124
- Sterling Solar 2 Interconnection Project, DOE/EA-2141
- Tucson-Apache 115-kV Transmission Line Right-of-Way Application, DOE/EA-2002
- Vidal Solar Interconnection Project, DOE/EA-2170
Findings of no Significant Impacts (FONSI)
- Bouse Upgrade Project, DOE/EA-2106
- Davis-Kingman 69kV Rebuild Project FONSI
- Glen Canyon to Pinnacle Peak 345 kV Transmission Lines Vegetation Management
- ED5-Palo Verde Hub Project FONSI
- Perrin Ranch Wind Energy Project FONSI DOE EA-1853
- Power Purchase Agreement for Part 2 of the Mesquite Solar Energy Project FONSI
- Townsite Solar Project Transmission Line Project, FONSI, DOE-EA-1960
- Gila to North Gila Transmission Line Rebuild and Upgrade Project, FONSI, DOE-EA-1948
Programmatic Agreements
Arizona
- Draft Programmatic Agreement for Routine Maintenance in AZ (excludes Appendices A and C)
- Programmatic Agreement Regarding Maintenance and Minor Construction Activities on Existing WAPA Transmission Lines and Facilities on the Gila River Indian Reservation, Maricopa and Pinal Counties, Arizona
- Programmatic Agreement Regarding Maintenance and Minor Construction Activities at Existing Western Transmission Lines, Facilities and Properties in Arizona
- Monitoring and Discovery Plan
California
Nevada
DSW’s Facilities Historic Context Statement
Categorical Exclusions (CX)
Routine Operations & Maintenance and Minor Construction Program-Wide
- APS Sundance Project (PDF)
- Gila 34.5-kV Switchyard Rebuild Project (PDF)
- Pinal Central to ED5 Transmission Line Upgrade Project (PDF)
- Gila-Knob 161-kV Transmission Line Rebuild Project (PDF)
- Post 2028 Parker-Davis Project Marketing Initiative (PDF)
- Longroad Energy Serrano 230-kV Overcrossing (PDF)
- GRICUA 20 MW Load Relocation Project (PDF)
- Access Easement Acquisition for TUC-DLB 115-kV Transmission Line
- Rate Order WAPA-209
- Rate Order WAPA-210
- 337-Sonora-Wellfield-CE
- Gila 69-kV Switchyard Rebuild Project
- Pinnacle Peak to Rogers 230-kV Transmission Line Rebuild Project
- Spook Hill Substation Decommissioning – Phase 2 Amended (1/25/2023)
- DSW Mead Substation Entry Gate (1-10-2023)
- Proposed Rates for Energy Imbalance Markets Services – Rate Order WAPA-208 (12/15/2022)
- Exploration of Energy Imbalance Market
- Access Road and Maintenance Pad Reclamation along the Davis to Topock #1 & #2, Topock to North Havasu, and Topock to Black Mesa 230-kV Transmission Lines in Arizona (6-11-2020)
- Access Road and Maintenance Pad Reclamation along the Harcuvar to Little Harquahala 115-kV and Harcurvar to Bouse Hills 115-kV Transmission Lines (3-30-2020)
- Access Road Repairs at the Flagstaff Substation (7-7-2020)
- Flagstaff to Pinnacle Peak #1&2 Transmission Lines Herbicide Follow-up Application (5-4-2020)
- Flagstaff to Pinnacle Peak #2 345-kV Transmission Line Frayed Conductor Repairs (3-13-2020)
- Glen Canyon to Flagstaff #1 Insulator Replacement (8-26-2020)
- Golden Eagle Artificial Nest Construction and Relocation of an Existing Nest on the Peacock to Prescott 230-kV Transmission LIne (3-13-2020)
- GridLiance’s Mead-Pahrump Transmission Line Rebuild Project (1-17-2020)
- Herbicide Application at the Phoenix Area Office (5-13-2020)
- Mead-Perkins and Peacock-Liberty ROW Herbicide Follow-Up (4-10-2020)
- Mesa Substation Excess Property Reporting to GSA (7-10-2020)
- Navajo-Long House Valley 230-kV Right-of-Way Integrated Vegetation Management (6-15-2020)
- Phoenix Area Office Guard Building Replacement (2-10-2020)
- Bouse Upgrade Geotechnical Drilling (6-10-19)
- Coolidge-Valley Farms Transmission Line Rebuild (3-13-19)
- Gila-Gila Valley Integrated Vegetation Management (10-30-19)
- Glen Canyon-Flagstaff #1: Insulator Replacements (7-10-19)
- Glen Canyon Substation: Bathroom Repairs (1-7-19)
- Integrated Vegetation Management along the Lone Butte-Sundance Transmission Line Right-of-Way (10-28-19)
- Kayenta-Long House Valley: Equipment Additions and Replacements (3-7-19)
- Mead Substation: License Agreement for GridLiance’s Geotechnical Investigations (10-25-19)
- Mead-Perkins Transmission Line 299/3 Insulator Replacement (10-30-19)
- Mead Substation Plumbing and Water Pipeline Repairs (4-29-19)
- Parker-Bouse Integrated Vegetation Management (11-21-19)
- Parker-Buckeye and Parker-Hassayampa 230-kV Transmission Line Right-of-Way Access Road and Structure Work-Pad Repairs (4-9-19)
- Peacock-Liberty Transmission Line Conductor Repair near Structure 166/1 (3-19-19)
- Phoenix Area Office Remedial Soil and Water Investigations (6-13-19)
- Pinnacle Peak: Geotechnical Investigations (1-3-19)
- Routine Maintenance and Minor Construction Program Fiscal Year 2019-2024 (7-29-19)
- Transmission Equipment Disposals (7-19-19)
- Black Canyon and Cunningham Microwave Upgrades (9-14-18)
- Coolidge Substation Sewer and Water Line Repairs/Hose Bib Installation (4-26-18)
- Davis Dam Substation Erosion Control and Fence Improvements (revised) (5-1-18)
- Gila Gila Valley Lateral Transmission Line Rebuild Upgrade and Extension Project (3-2-18)
- Gila Substation Rebuild Project and Related Communication and Protection Equipment Replacement (5-25-18)
- Glen Canyon Dam Warehouse Renovation Project (5-4-18)
- Glen Canyon Guyed Tower Replacement (6-4-18)
- Glen Canyon-Flagstaff #1and #2 345-kV and Flagstaff-Pinnacle Peak #1 and #2 345-kV Transmission Line Maintenance and Repair Operations (4-30-18)
- Glen Canyon Substation Drainage, Driveway, and Waterline Improvements (12-20-18)
- Glen Canyon Substation Transformer Replacement (8/28/18)
- Harcuvar to Little Harquahala Transmission Line – Urgent Structure Repairs (9/4, 14/4 & 18/3) (4-15-18)
- Harcuvar to Little Harquahala and Harcuvar to Bouse Hills Pumping Plants: Repairs to Access Roads, Pads, Static/guy Wires and Cross-arm Replacements (7-7-18)
- Hazard Tree Affecting the Flagstaff-Pinnacle Peak #2 Transmission Lines near Structure 184/1 (5-30-18)
- Hazard Vegetation Removal along Central Arizona Project and Colorado River Storage Project Power System Transmission Lines in February 2018 (2-9-18)
- Hazard Vegetation Removal along Central Arizona Project Transmission Lines in May-July, 2018 (5-4-18)
- Herbicide Application at 18 Substations located in Arizona and California, 2018-2023 (10-10-18)
- HVAC Installation at the Desert Southwest Regional Office (2-22-18)
- Inactive Bird Nest Removal at the Test Track Substation (5-18-18)
- Integrated Vegetation Management Actions along the Electrical District 2 to Saguaro Transmission Line #2 between 4/16/18 and 5/12/18 (4-15-18)
- Integrated Vegetation Management Actions along the Electrical District 2 to Suguaro Transmission Line #2 (with a focus on Structures 29/5 to 32/13) (4-27-18)
- Integrated Vegetation Management along the Flagstaff Pinnacle Peak 1 & 2 Transmission Lines (Structures 202/1 to 227/4) (3-1-18)
- Integrated Vegetation Management along the Flagstaff Pinnacle Peak 1 & 2 Transmission Lines (Structures 204/2 to 223/2) (3-19-18)
- Integrated Vegetation Management along the Flagstaff Pinnacle Peak 1 & 2 Transmission Lines (Structures 204/2 to 223/5) (4-27-18)
- Integrated Vegetation Management along the Flagstaff Pinnacle Peak 1 & 2 Transmission Lines (Structures 204/2 to 223/5) (5-18-18)
- Integrated Vegetation Management along the Flagstaff Pinnacle Peak 1 & 2 Transmission Lines (Structures 204/2 to 223/2 with a focus on Structures 210 to 213/2) (4-6-18)
- Integrated Vegetation Management Actions to Control Unwanted Plants at Western Communication Facilities in Arizona, California and Nevada (8-28-18)
- Jacks Peak, Glen Canyon, Zilner and Lolamai Microwave Upgrades (9-14-18)
- Liberty Substation: Component Upgrades (7-11-18)
- Mead-Marketplace and Mead-Perkins Transmission Lines Spacer/Damper Project (3-21-18)
- Mead-Perkins Conductor Spacer Repairs on Towers 145/1, 206/2, 206/4, 207/1, 207/4 and 211/4 (4-9-18)
- Mingus Microwave Site Building Replacement (10-9-18)
- Rattlesnake-Del Bac Transmission Line Breaker and Jumpers Replacement (10-2-18)
- Right-of-Way (ROW) Vegetation Reclamation and Removal Program for the Mead-Perkins 500-kV and Peacock-Liberty 345-kV Transmission Lines (10-11-18)
- Security Upgrades at Four Desert Southwest Facilities: Flagstaff, Glen Canyon, Pinnacle Peak and Phoenix (6-21-18)
- Senator Wash Pumping-Generator Plant Transformer Replacement Project and Structural Foundation Repair (4-4-18)
- Sonora-San Luis 34.5-kV Transmission Line Structure Repairs (5-30-18)
- Black Mesa Substation Jumper Replacements (3-17-17)
- Boulder Canyon Project – Rate-Setting Formulas for Electric Service and Adjustments of Fiscal Year 2018 Base Charges and Rates (4-25-17)
- Commercial Cell Antenna Maintenance at DSW Facilities (5-8-17)
- Communication Facilities Maintenance for 2017-2018 (5-8-17)
- Elden Microwave Site Operations and Maintenance 2017-2018 (6-27-17)
- Erosion Control at the Pinnacle Peak Substation (7-26-17)
- Herbicide Application at 11 Substations located in Arizona and Nevada, 2017-2018 (5-8-17)
- Integrated Vegetation Management actions along Flagstaff Pinnacle Peak 1 &2 and ED2-Saguaro2 Transmission Lines in FY18 (5-25-17)
- Jacks Peak and Preston Mesa Microwave Upgrades (9/8/17)
- Liberty-Peacock Insulator Replacements, Road Repairs and Pad Work at 223/5-237/1 (1-26-17)
- Mead-Peacock Insulator Replacements (10-4-17)
- Mead-Perkins Spacer Replacement, 74/2 (3-17-17)
- Mead Substation Security Upgrades (4-18-17)
- Mead Substation Urgent Waterline Replacement (5-26-17)
- Mead Tower Installation for Fall Protection Training (3-17-17)
- Mingus Microwave Site Operations and Maintenance 2017-2018 (6-27-17)
- Rattlesnake-Del Bac Structure Replacement, 6/6 (10-31-17)
- Rattlesnake Substation HVAC Replacement FY18 (10-18-17)
- Revisions to Network Integration Transmission Service Agreements for 2017 (3-13-17)
- Commercial Cell Antenna Maintenance at DSW Facilities (4-1-16)
- Communication Facilities Maintenance for 2016-2017 (3-25-16)
- Concertina Wire Installation at Liberty Substation (4-21-16)
- Electrical District No. 5 Substation Erosion Protection (4-20-16)
- Glen Canyon Substation Emergency Waterline Repairs (2-4-16)
- Glen Canyon Substation Emergency Erosion and Waterline Repairs (5-18-16)
- Hassayampa Switching Substation Geotechnical Surveys (6-23-16)
- Hassayampa Tap Replacement and Sun Valley Interconnection (12-8-16)
- Herbicide Application at 11 Substations located in Arizona and Nevada, 2016-2017 (3-29-16)
- Liberty-Parker #1 Transmission Line Transfer to Western from Reclamation (2-1-16)
- License Outgrant for the Quarry 187 Road Improvements (3-16-16)
- Mead-Liberty Spacer Replacement, 64/1-64/2 (9-9-16)
- Mead-Liberty and Mead-Perkins Vegetation Management, Route 66 to Interstate 40 (2-25-16)
- Mead-Perkins 14/4 Spacer Replacement and Road Repairs (11-14-16)
- Mead-Phoenix Spacer Damper Repair (4-20-16)
- Mead Security Guard Building (4-1-16)
- Pinnacle Peak-Rogers 230-kV Transmission Line Inset Structure 5/1A (3-23-16)
- Pinnacle Peak Substation Tree Removal (4-1-16)
- Proposed Formula Rates for Network Integration Transmission Service and Ancillary Services (1-19-2016)
- Spook Hill Substation Decommissioning (12-16-16)
- Substation Maintenance for 2016-2017 (3-25-16)
- Tucson Substation Rebuild, Stage 02 (3-30-16)
- Transmission Insulator Structure Replacement on the HVRMED #2 (4-28-16)
- Black Mountain Communications Facility Rebuild Project (1-16-15)
- Blythe-Headgate Rock X-Brace Replacemet (8-7-15)
- Blythe-Knob 161-kV Cross Arm Replacements, Mile 0 to 7 (1-9-15)
- Blythe-Knob 161-kV Transmission Line, Pole Replacements at Interstate 10 Crossing (8-3-15)
- Bouse Hills Pump Plant-Harcuvar 115-kV Inset Structure (1-9-15)
- Categorical Exclusion (1-19-16)
- Central Arizona Project Rate Increase (10-15-15)
- Coolidge Substation Communication Equipment Upgrades (10-20-15)
- Communication Facilities Maintenance and Minor Additions or Modifications (4-10-15)
- Dome Tap – Wellton Mohawk Ligurta – Replace Structure 3/2 (7-1-15)
- Dome-Wellton-Mohawk-Ligurta Line Maintenance (9-14-5)
- Gila-Gila Valley Lateral Transmission Line Rebuild (1-13-15)
- Gila Substation Stage 07 Rebuild Project and related Communications Equipment Replacement (7-20-15)
- Ground Wire Repair on Transmission Structures (5-4-15)
- Herbicide Application at 51 Substations in Arizona, California and Nevada (3-23-15)
- Herbicide Application at Mexico Tap (8-11-15)
- Herbicide Application Urgently Needed at 15 Substations (3-3-15)
- Issuance of Easement Outgrant to Giving Life Ministries for a Parking Lot Expansion (10-15-15)
- Liberty Substation Mowing (5-4-15)
- Lone Butte Substation Erosion Repairs (9-22-15)
- Mead Substation Stage 15 – Foundation Rebuilds and Transformer Connections (4-23-15)
- Oracle-Saguaro 115-kV Transmission Line Routine Maintenance Project (5-4-15)
- Parker Dam Pole Replacement (8-7-15)
- Pest Control at Buildings in 44 Substations in Arizona, California and Nevada (3-11-15)
- Phoenix Service Center, Grant of Access for Fiber Optic Cable Installation (1-9-15)
- Prescott Peacock 230-kV Transmission Line Vegetation Management between Structures 54/1 and 107/1, Mohave and Yavapai Counties, Arizona (2-17-15)
- Prescott-Pinnacle Peak Wireless Communications Equipment Installation at Structure 147/4 (10-9-15)
- Sonora Substation Antenna Pole Addition (7-20-15)
- Substation Maintenance in 2015 (2-7-15)
- Tucson Substation Rebuild – Stage 02 Project (3-31-15)
- Amargosa Substation (Conduit and Storage Pad Installation) (6-3-14)
- Amargosa Substation (Control Building Repairs) (9-10-14)
- Blythe-Knob 161-kV Transmission Line, Structure Maintenance Project (1-21-14)
- Blythe-Knob 161-kV Transmission Line, Cross Arm Replacements (3-6-14)
- Bouse Hills Pumping Plant to Harcuvar 115-kV Transmission Line, Inset Structure Installation (8-27-14)
- Cable Trenching in the Gila Substation (1-13-14)
- Commercial Cell Antenna Maintenance at DSW Facilities (12-18-14)
- Coolidge Substation Outgrant to Southwest Gas for Pipeline (2-18-14)
- Crossman Peak Communication Site Lease and Equipment Upgrades at 5 Facilities (6-2-14)
- Davis Dam Maintenance Building installation at the old Davis Dam 69-kV West Switchyard (6-30-14)
- ED2-ED4 Transmission Line Rebuild Project (7-10-14)
- Electrical District 2 to Saguaro #2 115-kV Transmission Line, Marker Ball Installation at Structure 26-10 (1-9-14)
- Electrical District 2 to Saguaro #2 Transmission Line Geologic Investigation Project (3-14-14)
- ED5-SGR2 NERC Mitigation (9-11-14)
- Flagstaff to Pinnacle Peak #1 and #2 345-kV Transmission Lines Insulator Replacements (7-1-14)
- Flagstaff Pinnacle Peak #1&2 Transmission Lines – Slid Static Damper Repair at Structures 134/3 & 139/2 (6-11-14)
- GCS 345kV-SF^ Breaker (3396) and Concrete Pad Installation (2-6-14)
- Gila Knob Transmission Line – Anchor Repair at Structure 4/7 (11-13-14)
- Gila-Kofa 161-kV Transmission Line, Emergency Erosion Repair at Structure 102-6 (7-16-14)
- Gila Substation Geotechnical Study (8-6-14)
- Henderson 230kV Switchyard (Erosion Control) (2-6-14)
- Henderson-Mead #1 230-kV Transmission Line Access Road Maintenance (7-22-14)
- Humboldt Mountain Communication Facility – Asbestos and Lead-based Paint Testing (6-19-14)
- Humboldt Mountain Communication Facility – Demolition (10-29-2014)
- Liberty Parker #2 Transmission Line – Erosion Repair at Structure 53/1 (6-9-14)
- Liberty Substation – Vegetation Management (4-1-14)
- Liberty-Westwing 230-kV Transmission Line Insulator Replacement (6-5-14)
- Lone Butte Substation Erosion Repairs (9-11-14)
- Mead Administrative Building Demolition(3-26-14)
- Mead-Liberty 345-kV Transmission Line Access Road and Maintenance and Localized Vegetation Management Project (8-27-14)
- Mead Substation Access Road Repairs (11-7-2014)
- Mead Substation Service Building Repairs (8-28-2014)
- Metal Mountain Communications Site _ Emergency Air Conditioner Replacement (7-3-2014)
- NERC Mitigation Actions Along Three Transmission Lines (6-5-2014)
- Prescott-Pinnacle Peak 230-kV Tranmission Line Access Road Maintenance and Localized Vegetation Management Project (9-9-2014)
- Prescott Pinnacle Peak Structure 195/2 – Commercial Cell Antenna Maintenance (10-2-14)
- Prescott Pinnacle Peak Structure 213/4 – Commercial Cell Antenna Maintenance (10-23-14)
- Prescott Peacock Transmission Line – Insulator Repair at 3 Structures (7-31-14)
- Saguaro-Tucson 115-kV Transmission Line Cross Arm Replacements(2-11-14)
- Substation Maintenance (1-23-14)
- Tucson-Apache 115-kV Transmission Line, Access Road Repairs Mile 14 to 20 (11-14-14)
- Tucson Substation – Asbestos Abatement (6-3-14)
- Valley Farms Substation – Emergency Installation of Concrete Pad for Western’s Communication Tower (4-1-14)
- Valley Farms to Oracle 115-kV Transmission Line, Guy Anchor Repairs at Structure 6-8 (11-24-14)
- Wood Pole Testing along 20 Transmission Lines (4-17-2014)
- Adams Tap MOI and Control Building Replacement (9-11-13)
- Casa Grande Substation, CAG 262 Breaker Replacement (4-4-13)
- COLORA – Cross-Arm Replacement, Structure Nos. 12-3, 12-6 (9-23-13)
- Davis Dam to Kingman Tap 69-kV Transmission Line, Overhead Optical Power Ground Wire Installation (5-16-13)
- Davis Dam to MEC Kingman Tap 69-kV Transmission Line Rebuild (3-20-13)
- Davis-Parker 230kV Transmission Line – Marker Ball(s) Replacement (12-17-13)
- DSWR – Bi-Annual “Live Line” Maintenance Training (10-08-13)
- Electrical District 2 to Saguaro #2 115-kV Transmission Line Access Road Maintenance between Structure 26/8 and 26/9 (5-20-13)
- Gila Substation Emergency Current Transformer Replacement (4-26-13)
- 3 Yuma Area Transmission Lines Emergency Storm Damage Repairs (8-26-2013)
- GCS Switchyard – 230-kV Wavetrap Removal – TZ9A2 on the Navajo Line (6-21-13)
- Gila Knob Transmission Line Crossarm Replacement at Structure 18/3 (06-03-2013)
- Gila Knob Transmission Line Hot Crossarm Changeout Training (12-16-2013)
- Gila-Wellton Mohawk Transmission Line Maintenance (1-3-13)
- Glen Canyon Substation Stage 09- 50MVA 230/69kV Transformer Addition (7-2-13)
- Glen Canyon to Flagstaff #2 345-kV Transmission Line, Access Road Maintenance from Structure 45/4 to 46/1 (8-8-13)
- Henderson Mead #2 Erosion Control Project Near Structure 2/4 (9-11-13)
- 40 Arizona Substations Herbicide Application (7-1-13)
- 4 Southern California Substations Herbicide Application (7-1-13)
- 1 Gila River Indian Community Substation Herbicide Application (7-1-13)
- 2 Navajo Nation Substations Herbicide Application (7-1-13)
- 4 Southern Nevada Substations Herbicide Application (7-1-13)
- 36 Substations in AZ & CA Herbicide Application during FY2013 (4-19-13)
- Lone Butte Substation located on the Gila River Indian Community, AZ during FY2013 Herbicide Application (4-24-13)
- Hoover-Mead #1 and #5 230-kV and Mead-Marketplace 500-kV Transmission Lines Facilities Ratings Project (3-20-13)
- Hoover-Mead #8 230-kV Transmission Line Insulator Repair Project (3-11-13)
- Oracle Electrical Substation Installation of Cattle Guard (5-9-13)
- Liberty-Parker Dam #2 230-kV Transmission Line, Optical Power Ground Wire Repair (08-22-2013)
- LIBPAD-1 230 kV Transmission Line “Live Line” Maintenance Training at Structure 112-4 (10-25-2013)
- Liberty Substation Transformer Replacement Project, Maricopa County, Arizona (06-06-2013)
- Electrical District 5 Substation Project Material Source Site (2-28-13)
- Mead KU2A Emergency Bushing Replacement (7-2-13)
- Nogales Substation Temporary Laydown Yard (3/28/13)
- Oracle Substation – Breaker Support Work (10-30-13)
- Oracle to Tucson 115-kV Transmission Line, Cross Arm Replacements at Structures 2/5 and 7/3 (5-2-13)
- Parker Dam to Gila 161-kV Transmission Line, Cross Arm Replacement at Structure 0/7 (7-22-13)
- Parker Dam to Headgate Rock and Parker Dam to Bouse 161-kV Transmission Lines, Cross Arm Repairs and Helicopter Staging Areas Project (2-19-13)
- Parker-Gila 161-kV Transmission Line Maintenance Project, Structure 92/1 to 94/9 (6-5-13)
- Parker-Gila 161-kV Transmission Line – Structure 109-8 Relocation (12-18-13)
- Parker Substation 161-kV 2013 Breaker Replacement (5-17-13)
- 44 Substations in Arizona, California, and Nevada Pest Control within Buildings (6-6-13)
- Phoenix to Lone Butte 230-kV Transmission Line, Bird Diverter Installation (4-8-13)
- PHX-LOB and LIB-LOB 230-kV double-circuit – replace insulators at Structure No. 28-2 with NCI type polymers (8-12-13)
- Pinnacle Peak – Rogers 230-kV Double Inset Structure #5/1a Installation (6-28-13)
- Prescott to Peacock 230-kV Transmission Line Hazard Tree Removal between Structures 54/1 and 107/1 (11-22-2013)
- Protection and Communication Facilities Maintenance (11-8-13)
- Oracle Breakers 562 and 762 Removal and Replacement along with Associated Disconnects (7-2-13)
- Saguaro-Tucson 115-kV Transmission Line Road Maintenance and Brushwork (4-30-13)
- Saguaro-Tucson 115-kV Transmission Line, Structure Replacement at 10-4 (12-3-13)
- Tucson Apache Emergency Structure Stabilization Project (9-6-13)
- Tucson to Apache 115-kV Transmission Line Wood Pole Replacement Project (2-28-13)
- 2012 Boulder Canyon Project (4-3-12)
- Coolidge Substation – Fence Relocation (1-18-12)
- Tucson Substation 162/162 Breaker Replacement (9-5-12)
- Mesa Substation Soil Remediation Assessment (12-12-11)
Last modified on October 4th, 2024