As input to the Expert Panel in development of a Strategic Plan for the Distribution System Water Quality Strategic Initiative, an expert workshop was held May 30 and 31, 2007, in Englewood, Colorado. Twenty-one experts considered distribution system water quality concerns, and in breakout groups identified research projects to address high priority research needs. The workshop report includes a white paper on the state of knowledge in distribution system water quality that was prepared prior to the workshop to set the stage for productive discussions. Fourteen projects were identified by the workshop participants as particularly high priority, suitable for starting immediately. The workshop report was a primary input to the Expert Panel’s effort to develop strategic initiative objectives and the sequenced plan of projects to achieve those objectives.