Skip to main content

Evaluating the Wet Weather Performance of the Sewer Collection System in Minneapolis after Combined Sewer Separation

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

The Metropolitan Council Environmental Services (MCES) and the City of Minneapolis are co-permittees of a National Pollution Discharge Elimination System (NPDES) Permit for a Combined Sewer Overflow (CSO) system located in the City of Minneapolis. For the past 20 years, the City has performed a series of sewer separation projects aimed a reducing the number of CSOs to area streams and the Mississippi River. Despite the expenditure of hundreds of millions of dollars, overflows persist at specific locations in the sewer system. This project was devised to gain a better understanding of where and how much flow enters the system, of the hydraulic conditions contributing to the overflows, and of modifications to the sewer system or additional inflow removal projects that could further reduce overflows.

Flow monitoring data obtained from prior efforts to determine these locations is no longer current – City sewer separation projects and the growth of the suburban communities have rendered this data obsolete. New data would allow identification of areas with extraneous water sources, and permit quantification of the extent their disconnection from the system would reduce overflows to the Mississippi River. The new insights into the collection system hydraulics gained from this data will allow evaluation of structures within the system and to what extent these structures can be modified to improve the system hydraulics and reduce overflows.

This paper presents the techniques used to gather appropriate data regarding the system operation and analyze the data to determine a prioritized set of steps for further reducing system overflows. Specific attention is paid to the difficulty of meter installation and the value of the data gathered as a result. The techniques used to analyze the data are presented, including field verification of some model-based conclusions.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2003-01-01

More about this publication?
  • 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.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more