Categorical Exclusion Determinations: B4.6

Hot Springs Substation Gravity Drain Install CX(s) Applied: B4.6 Date: 07/19/2012 Location(s): Montana Offices(s): Bonneville Power Administration

Boysen-Thermopolis 115 Kilowolt Transmission Line Structure 15/6 Pole Replacement Project Fremont County, Wyoming CX(s) Applied: B4.6 Date: 07/02/2012 Location(s): Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region

Lancaster Line and Load Project CX(s) Applied: B4.6, B4.7 Date: 06/28/2012 Location(s): Idaho Offices(s): Bonneville Power Administration

Airport to Boyd 115 Kilovolt Transmission Line Structure Replacements Larimer County, Colorado CX(s) Applied: B1.3, B4.6 Date: 06/20/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

Platform Construction for Power Pole Work CX(s) Applied: B1.13, B2.5, B4.6 Date: 06/18/2012 Location(s): Wyoming Offices(s): RMOTC

Power Circuit Breaker Replacement Project CX(s) Applied: B4.6 Date: 06/12/2012 Location(s): Washington, Oregon, Idaho, Montana, Wyoming Offices(s): Bonneville Power Administration

Buried Power Line at Customer Operations Center CX(s) Applied: B1.3, B4.6, B4.12 Date: 06/08/2012 Location(s): Wyoming Offices(s): RMOTC

Upgrade of the Secondary Containment System at Bonneville Power Administration’s (BPA) Santiam Substation CX(s) Applied: B4.6 Date: 05/30/2012 Location(s): Oregon Offices(s): Bonneville Power Administration

Optimization of Microwave Telecommunication System ON Line Nevada Transmission Project, f.k.a. Southwest Intertie Project - South CX(s) Applied: B1.19, B4.6 Date: 05/29/2012 Location(s): Nevada Offices(s): Loan Guarantee Program Office

One Nevada Optimization of Microwave Telecommunication System CX(s) Applied: B1.19, B4.6 Date: 05/29/2012 Location(s): Nevada, Offices(s): Loan Guarantee Program Office