Traveling Water Screen Retrofits for 316(b) Compliance

Traveling Water Screen Retrofits for 316(b) Compliance

The final rule implementing §316(b) of the Clean Water Act lists 7 options for Impingement mortality. EPA has concluded that modified traveling screens, such as modified Ristroph screens and equivalent modified traveling screens with fish-friendly fish returns, are a best technology available for minimizing impingement mortality (Option 5). Inspection and analysis of existing traveling water screens is required to perform a complete and accurate cost estimate for compliance. The ability to reuse existing equipment and upgrade to modified Ristroph fish buckets can reduce capital cost by up to 40%. Model, design of screen, spray location and location of existing trough will impact extent of work and final cost. This session will identify key wear components and how to determine the most cost effective approach to traveling water screen conversions.