AWWA DSS63732

This slide presentation outlines the issue of backflow and its impact on public health, and gives two approaches to backflow control that include either installing backflow prevention devices or pressure management. Topics covered include: hydraulic transients; sources of pressure transients; surge modeling; impact of pump station; New Jersey distribution system example; related factors such as system size, surface vs. ground, and system configuration; surge mitigation approaches; and, air valves for surge mitigation. Includes figures.