This document contains a series of reports and comments of the Alaska Power Authority's External Review Panel on the Susitna Hydroelectric Project based on their review of the comprehensive Feasibility Report prepared by Acres American, Inc. Reports are dated from January 1981 to April 1982. Included are seismic studies, environmental studies, fishery and wildlife studies, economic evaluations, geotechnical investigations, and hydraulic and hydrology considerations.

Presents geological conditions in the Susitna River Valley at the damsite, cofferdams and in the adjacent relict Watana channel northeast of the site. Emphasis is given to geophysical exploration, drilling, and sampling, field permeability testing in overburden and pressure testing in bedrock, laboratory testing and instrumentation.