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Water Utilities > Customer Education > Sewer System

Sewer System

The Lee's Summit sanitary sewer system is designed to carry wastewater/sanitary sewer from approved drains (sinks, toilets, showers, etc.) in residences, businesses, and industries throughout the City to the Little Blue Valley Sewer District for treatment. The system includes all pipes, manholes, pumping stations, excess flow holding basins, etc., in the system, up to the point where the customer's private sewer lateral connects to the public system.

The sanitary sewer system is constantly evolving to accommodate the removal of wastewater from existing and new developments to provide a healthier environment and better quality of life. While making strategic investments in our water and sewer infrastructure and services the Utility has maintained some of the lowest water and sewer rates in the metropolitan area.

The Lee's Summit sanitary sewer system conveys four billion gallons of sewage for treatment each year. 

  • More than 500 miles of public sewer mains
  • 11,000 manholes
  • 33 pumping and lift stations
  • 33,557 sewer accounts

  • TV Inspection: Every line is inspected and recorded on a 10-year-cycle. Each year condition assessments are made on 50 miles of mains to inspect and prioritize for rehabilitation and replacement.
  • Smoke-testing for Inflow and Infiltration defects
  • 300 commercial grease traps are inspected annually

  • Clean (jet) approximately 100 miles of sewer mains per year
  • All clay tile pipe is jetted on a three-year cycle
  • PVC pipe is jetted on a five-year-cycle
  • Mechanical root removal
  • Make repairs to any defects
  • Respond to sewer blockages and overflows as emergencies

  • Prioritize lines for replacement and rehabilitation
  • Community Sewer Line Rehabilitation Project: More than 30 miles of sewer lines have been rehabilitated through a non-invasive process called Cured in Place Pipe (CIPP). Another 7.5 miles is scheduled for rehabilitation in 2018. For more about the CIPP and the sewer repair process see the Sewer Repair page.
  • Replacing six-inch mains with eight-inch mains for better flow
  • Upsize and rehabilitate 5,385 feet of large diameter line in Cedar Creek Sanitary Sewer Interceptor.