In 1972 , Bechtel was involved in approximately 20 percent of all of the United States ' new power - generating capacity .
In 1968 , the company completed the largest nuclear plant in the US at the time , the San Onofre Nuclear Generating Station , in California .
In 1972 , Bechtel was involved in approximately 20 percent of all of the US   ' new power - generating capacity .
In 1968 , the company completed the largest nuclear plant in the US at the time , the San Onofre Nuclear Generating Station , in California .