Your partner in protecting public health and the environment
We are a passionate and experienced resource recovery team that aims to protect public health and the environment by providing safe, reliable and efficient wastewater treatment to our communities. We’re known for our innovative engineering, conservation leadership, recovery expertise and we’re cost-conscious ratepayers, just like you. It’s who we are.
At the District, our vision is to enrich life through clean water and resource recovery. Every time our essential workers clean and return wastewater back to nature or apply Metrogro to help farmers grow more food, we’re taking steps to create a cleaner and better world. We do this by not only providing critical infrastructure and public services to the communities we serve, but by providing education and doing public outreach so others can take steps to conserve our resources.
WATER IS FINITE.
We can’t create more of it.
We have the power to enhance the quality of life on our planet together. By making small changes and respecting every drop of water we have today, we can set the tone for a resource-conscious and sustainable community tomorrow.
Established in 1930 to protect the lakes and streams of the upper Yahara watershed, Madison Metropolitan Sewerage District serves about 435,000 people in 24 Madison-area customer communities covering about 190 square miles. The District owns and operates 150 miles of pipe and 18 regional pumping stations that convey approximately 37 million gallons of wastewater to the Nine Springs Wastewater Treatment Plant daily. Organized as a municipal corporation, the District is a leader in sustainability and resource reclamation.
The District celebrated its 95th anniversary in early 2025. Read more about how we became who we are.
District Updates
Receive updates on District news and ways to protect local water resources.
Quick facts about Who We Are
435,000
area residents & businesses served
24
Madison-area customer communities served
190
square miles in service area
150
miles of pipe
18
regional pumping stations
37
million gallons of wastewater treated daily (MGD)
Our mission
Protect public health
and the environment
Our Vision
Enrich life through clean water and resource recovery
Our VALUES
Service. Reliability. Sustainability.
