AWWA DSS60347

This slide presentation outlines information on a case study involving the Massachusetts Water Resources Authority (MWRA) and lead and copper corrosion control in a large blended system. Topics covered include: issues in mixing MWRA water with its partial users communities; tubercolation; MWRA raw water quality; MWRA water system before 1996; LCR requirements; lead and copper corrosion control paths; lead and copper corrosion control alternatives for MWRA; potential impacts in blending zone with high pH or phosphate; MWRA action plan; treatment improvement by MWRA; water quality results of treatment changes for lead and copper corrosion control; history of lead and copper corrosion control optimization; and, key solutions.