The document discusses the sewer collection system master planning process for the City of Bend, Oregon. It describes: - Bend's sewer collection system includes 430 miles of sewer mains and over 90 pumping stations that collect over 6 million gallons per day. - The original master plan faced challenges and capacity issues. A Sewer Infrastructure Advisory Group (SIAG) was formed, consisting of 17 citizen members, to advise on developing an affordable and flexible plan. - The SIAG was given an expanded role compared to traditional committees, including involvement in decision making. They helped evaluate thousands of potential solutions using an optimization model to identify lowest cost options providing capacity.