APRIL 7, 2006 - Posted at 3:12 p.m. CST
ST. LOUIS, MO - Ameren Corporation is assessing a report from an expert commissioned by the company concerning the failure of the reservoir at the Taum Sauk hydroelectric plant.
The report by engineer Paul Rizzo cites several reasons for the December breach that caused more than a billion gallons of water to spill down the side of a mountain, injuring five people and causing massive destruction.
Rizzo cites poor quality of material used in the dam's original construction. He also points to poor design and inadequate maintenance of instrumentation and control systems.
State and federal investigations continue.
Ameren chairman Gary Rainwater says the company has already created a dam safety program, will re-examine safety procedures, and will evaluate training programs.