New raw water supply for B-Plant fire foam system

The raw water supply for the B-Plant Canyon foam fire suppression system is being replaced. The 4 inch water supply line to the foam system is being rerouted from the 6 inch raw water line in the Pipe Gallery to the 10 inch raw water main in the Operating Gallery. This document states the acceptance criteria for the flushing and testing which was performed by the contractor, and contains the completed data sheets for the tests. Four tests were performed and documented: operation of the supervisory position indicator; hydrostatic testing; leak check the system; and final system flush