DSW Categorical Exclusions

Desert Southwest Categorical Exclusions (CX)

CX 2026

• 2026-DSW-006 Preston Mesa Tower CX Determination (PDF)
• 2026-DSW-004 Gila Sonora 69kV Under Crossing CX Determination (PDF)
• 2026-DSW-003 Casa Grande Fence Relocation CX Determination (PDF)
• 2026-DSW-002 Eloy Valley III Interconnection CX Determination (PDF)
• 2026-DSW-001 Rogers-Coolidge SRP Under Build CX Determination (PDF)

CX 2025

• Rate Order WAPA-222 (PDF)
• Marana Upgrade (PDF)

CX 2024

• Apache GT5 & GT6 Generation Project (PDF)
• 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)

CX 2023

• Access Easement Acquisition for TUC-DLB 115-kV Transmission Line (PDF)
• Rate Order WAPA-209 (PDF)
• Rate Order WAPA-210 (PDF)
• 337-Sonora-Wellfield-CE (PDF)
• Gila 69-kV Switchyard Rebuild Project (PDF)
• Pinnacle Peak to Rogers 230-kV Transmission Line Rebuild Project​ (PDF)
• Spook Hill Substation D​ecommissioning – Phase 2 Amended (PDF) (1/25/2023)
• DSW Mead Substation Entry Gate (PDF) (1-10-2023)​
• Propos​ed Rate​s for Energy Imbalance Markets Services – Rate Order WAPA-208 (PDF)​ (12/15/2022)

CX 2022

• Boulder Canyon Project – Proposed Rate-Setting Formulas for Electric Service and Fiscal Year 2023 Base Charge and Rates, Rate Order WAPA-204 (PDF)​ (1-31-2022)​

CX 2021

• ​Exploration of Energy Imbalance Market​ ​

CX 2020

• 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 (PDF) (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 (PDF) (3-30-2020)​​
• Access Road Repairs at the Flagstaff Substation (PDF) (7-7-2020)
• Flagstaff to Pinnacle Peak #1 & 2 Transmission Lines Herbicide Follow-up Application (PDF) (5-4-2020)
• Flagstaff to Pinnacle Peak #2 345-kV Transmission Line Frayed Conductor Repairs (PDF) (3-13-2020)
• Glen Canyon to Flagstaff #1 Insulator Replacement (PDF) (8-26-2020)
• Golden Eagle Artificial Nest Construction and Relocation of an Existing Nest on the Peacock to Prescott 230-kV Transmission Line (PDF) (3-13-2020)
• GridLiance’s Mead-Pahrump Transmission Line Rebuild Project (PDF) (1-17-2020)
• ​Herbicide Application at the Phoenix Area Office (PDF) (5-13-2020)
• Mead-Perkins and Peacock-Liberty ROW Herbicide Follow-Up​ (PDF) (4-10-2020)
• Mesa Substation ​Excess Property Reporting to GSA (PDF) (7-10-2020)
• Navajo-Long House Valley 230-kV Right-of-Way Integrated Vegetation Management (PDF) (6-15-2020)
• Phoenix Area Office Guard Building Replacement (PDF) (2-10-2020)

CX Archive

Categorical Exclusions Archive