Categorical Exclusion Determinations: B1.19

Bonneville Power Administration (BPA) proposes to allow T-Mobile to modify its existing unmanned telecommunications facility located adjacent to BPA’s Maple Valley Substation in Renton, King County, Washington (Township 23 North, Range 5 East, Section 20).
Bonneville Power Administration (BPA) proposes to allow the ATT corporation to make upgrades to antennas and associated equipment within their existing communications facility located on structure 74/2 of the Monroe-Custer No. 1 240 kV transmission line.