Western Area Power Administration’s (WAPA’s) proposes herbicide use at three substations on Bureau of Land Management (BLM) managed land. The proposed action would take place at Senator Wash, Sonora, and Spook Hill substations (See Scoping Letter for Maps). Senator Wash and Sonora are both located in the Yuma, Arizona area and Spook Hill substation is located in Mesa, Arizona.

The purpose of the proposed action is to authorize WAPA to use selected herbicides for the treatment of undesirable vegetation within three existing substations on Federal lands. The need for the proposed action is to control vegetation because it can:

  • Become a fire hazard or contribute to fires as a fuel source
  • Lead to power outages by interfering with electrical components
  • Cover or hide fences, increasing the risk of unauthorized entry and theft
  • Lead to corrosion of steel equipment
  • Increase risk of tripping and slipping
  • Interfere with equipment access and safety inspections
  • Serve as food and shelter for birds, rodents, ants, termites, and other pests
  • Degrade appearance of site

Mail: Western Area Power Administration
ATTN:  Johnida S. Dockens, Environmental Protection Specialist
Desert Southwest Region
615 S. 43rd Avenue
Phoenix, AZ 85009
Email:    DSW-environment@wapa.gov
Phone: (602) 605-2640

Visit the BLM project page​.



Last modified on December 4th, 2023