AWWA ACE61629

This slide presentation outlines information on monitoring locations and sampling capabilities for San Francisco Public Utilities Commission's distribution system reservoirs. Topics covered include: preparing for the conversion; examining nitrification potential in San Francisco Terminal Reservoirs; nitrification monitoring; nitrification alert levels; and, results one year after conversion. Specific information is outlined on: nitrification prevention measures for facilities with excessive water age; AWWARF Guidelines for bulk sampling; non-routine roof port sampling; three levels of action (alert, operational response, and regulatory violation possible); and, trending for patterns of nitrification.