Improving Our Community Waterways Together

News Details

Improving Water Quality


MSD has made great progress over the years in reducing pollutants in our community—even receiving national recognition for our efforts to comply with the Clean Water Act. MSD has remained ahead of the national curve, but there is more to be done. To satisfy the stringent requirements of the Kentucky Division of Water, U.S. Environmental Protection Agency Region IV (EPA) and U.S. Department of Justice,MSD entered into an agreement with these agencies in 2005—an agreement that is known as the Consent Decree.Project WIN (Waterway Improvements Now) was created as an initiative to directly address 
our Consent Decree responsibilities, which include the following:

  • Improving an aging sewer system that lacks the capacity, in some areas, to handle the current sewage and stormwater volume during wet weather;

  • Mitigating sewer overflows that violate the Clean Water Act by polluting the river and streams throughout Louisville Metro; and

  • Informing the public about potential health risks, financial impacts and construction project activity.

Our sewer system rehabilitation program is improving local water quality and protecting the health of our customers. The Integrated Overflow Abatement Plan (IOAP), which has been developed under Project WIN, is a long-term plan to control combined sewer overflows and to eliminate sanitary sewer overflows and other unauthorized discharges from MSD’s sewer system. The Project WIN team developed the $850 million IOAP to achieve the sewer overflow abatement objectives outlined in the Consent Decree by 2024.

MSD will continue design and construction of the various IOAP projects in the coming years. In addition, MSD either constructed, or partnered with others to build, 63 green stormwater infrastructure projects, which will collectively capture millions of gallons of water in a typical rainfall year. Project highlights are outlined on pages 6 and 7.

MSD has initiated 56 of the 123 IOAP projects, and completed 31 of the projects. One of the completed projects is the Beechwood Village Sanitary Sewer Project, which includes 524 residential plumbing modifications and 575 new property service connections. The contractor completed 23,565 feet of cured-in-place-pipe lining of the existing sewers, epoxy-lined 120 manholes and removed 231 sump pumps from the sanitary sewer.

Sixteen projects are currently under construction. These initiatives vary—from the massive Derek R. Guthrie Water Quality Treatment Center (WQTC) expansion (which is featured on pages 4 and 5) to flood pumping stations and sanitary sewer improvements; green demonstration projects; and large interceptor projects. The Southeastern Relief Interceptor, Hikes Lane Interceptor and Northern Ditch Diversion Interceptor are three of the large interceptor projects. These projects will result in more than 26,000 feet of new sanitary sewers, ranging from 60 inches to 84 inches in diameter, when they are complete.