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Jeff Theerman

Jeff is the Executive Director of the Metropolitan St. Louis Sewer District (MSD), a state-chartered agency that provides wastewater and stormwater service to approximately 1.4 million people in the City of St. Louis and most of the surrounding St. Louis County. MSD operates and maintains the fourth largest collection system in the United States with over 9,600 miles of sewers across a 535-square-mile service area. Like many other large wastewater utilities across the nation, MSD’s urban core is served by combined sewers, and MSD is progressing with a Long-Term Control Plan (LTCP) for combined sewer overflow (CSO).


Jeff has over 20 years experience with MSD and is a registered professional engineer in the state of Missouri. His prior career experience includes four years with the Illinois Environmental Protection Agency. He earned a Bachelor’s Degree in Civil Engineering from the Missouri University of Science and Technology and a Master’s Degree in Civil Engineering from Southern Illinois University-Edwardsville.
Jeff currently serves as president of the National Association of Clean Water Agencies (NACWA), which represents the interests of wastewater utilities across the nation. He is also a member of the Water Environment Federation (WEF) and a Bedell Award winner from the Missouri Water Environment Association (MWEA).