san Onofre's steam gerator facilites could have been prevented?

San Onofre's steam generator failures could have been prevented (
http://libcloud.s3.amazonaws.com/93/01/3/1442/SO_Steam_Generator_Analysis_May.pdf
)
Steam Generator Failures at San Onofre (
http://libcloud.s3.amazonaws.com/93/fa/7/1255/Steam_Generator_Failures_at_San_Onofre.pdf
)
San Onofre's steam generators: significantly worse than all others
nationwide (
http://libcloud.s3.amazonaws.com/93/a7/c/2277/Edison_San_Onofre_Generators_US_Worst_Fairewinds_report_July_2012.pdf
)
  Root cause for the tube leak and tube to tube wear. You can
access it here:
http://www.foe.org/news/news-releases/2012-07-down-the-tubes-san-onofres-steam-generators-in-worst-shape-us-nuclear-plants