Categorical Exclusion Determination
Office of NEPA Policy and Compliance
May 8, 2017
Estimated Read Time min
Western Area Power Administration plans apply pre-emergent, post-emergent, Ultraviolet Inhibitor herbicides, which will include spray marking dyes, at 11 substations in Coconino, La Paz, Maricopa, Navajo, Pima, & Yuma Counties, Arizona; and Clark County, Nevada. This work is needed to maintain the reliability and safety of the bulk electric system.