Reports, rules and regulations, engineering studies, environmental assessments, action and facility plans, program documents, surveys, public hearing materials, and studies of the Metropolitan Sewer Board of the Twin Cities Area (1969-1975) and Metropolitan Waste Control Commission (1975-1993). Topics covered include sewage and waste control, sludge handling and disposal, water quality, solid waste processing, chemical waste, pyrolysis, landfills, waste water management, toxicity, and chlorine monitoring, mainly in relation to the seven county metropolitan area and the Metropolitan Wastewater Treatment Plant. Included are two commission newsletters, Outfall (1972-1976, 1978-1984) and Link (1985-1991, 1994).
