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The City of Saginaw, Michigan is nearing completion of the second phase (B) of a comprehensive Combined Sewer Overflow (CSO) Control Project required to meet National Pollutant Discharge Elimination Systems (NPDES) Permit requirements.

The Project—consisting of six retention basins, collector sewers, and existing system upgrades— is the largest public works project in the City's history with a total cost of approximately one hundred and ten million dollars. Planning began in 1988 and construction will be completed in 2001, a relatively short time span given the magnitude and complexity of the project.

Saginaw received EPA's 1998 Program Excellence award. This award was presented for innovation and quality for their CSO control measures.

The City is performing an ongoing evaluation of its CSO Control Project and, as expected, the results show that the City's program exceeds the requirements of EPA's 1994 CSO control policy. Completion of Phase B of the program in 2001 will bring all CSO under control and allow a final system evaluation with all facilities in operation.

This paper provides information on the historical background and existing sewer system, NPDES permit issues and requirements of Project Planning, design considerations, construction, operations, and performance.

Document Type: Research Article


Publication date: January 1, 2000

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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