June 21, 2000

Issued to Mason & Hanger Corporation related to Fire Suppression System Issues at the Pantex Plant,  (EA-2000-07)

This letter refers to the Department of Energy’s (DOE) evaluation of the facts and circumstances presented to DOE by Mason & Hanger Corporation’s (M&H or the contractor) internal evaluation of the Building 12-79 HPFL Valve Misposition at the Pantex Plant, which was identified on November 19, 1999.