PCWA proposes the addition of micro-hydro units to be installed as part of a larger project called Duncan Creek Diversion Improvement Project, which is part of the Middle Fork American River Hydroelectric Project. The addition of micro-hydro units would involve the installation of two 1,500-Watt, 48-volt direct current units, which would provide power to charge the battery bank for operation of the diversion facility. The micro-hydro units will be installed along the 12-inch diameter instream flow pipe and housed within a vault constructed integral to the intake facility. The micro-hydro units will be installed within the construction footprint analyzed in the Environmental Impact Statement for Hydropower License, Middle Fork American River Hydroelectric Project-FERC Project No. 2079-069, California (2013 FEIS) and the Final CEQA Supplement to the FERC Final Environmental Impact Statement (CEQA Supplement) for the Middle Fork American River Hydroelectric Project. Installation of the micro-hydro units will not result in any new impacts not previously analyzed, or in the need for additional avoidance, protection, or mitigation measures. An addendum is appropriate instead of a subsequent EIR.