Your Partner in Clean Water

We are more than just a wastewater treatment plant.

For more than 90 years, Madison Metropolitan Sewerage District has worked to protect public health, the environment and our local waters through innovation, sustainability and resource recovery.

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COMMISSION

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Contracting CENTER

Find current business and contracting opportunities with the District

PHONE NUMBERS

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Be a Salt Saver

Learn how to reduce salt use in your home

CAREERS

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District FAQs

Find frequently asked questions and resources here

Wisconsin’s phosphorus rule protects watersheds, guides wastewater treatment plants

November 17, 2022

Under Wisconsin’s Phosphorus Rule, WDNR sets water quality standards for phosphorus in surface waters and treatment plant discharges.

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Protect your pipes this season

November 2, 2022

Whether it's football season or the holidays, you need to protect your pipes this time of year. Use these simple tips while you entertain.

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Clean Water Act FAQs

October 18, 2022

The Clean Water Act is a federal law that sets water quality standards and regulates the discharge of pollutants into water.

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Project spotlight: Aeration tank cleaning

October 11, 2022

Every summer, the Facilities Maintenance (FM) crew performs aeration tank cleaning and inspection of a portion of the plant’s 30 tanks.

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Our promise to you

Our Mission

Protect public health and the environment

Our Vision

Enrich life through clean water and resource recovery

Our Ideals

Equitable, reliable and cooperative

Your Partner in Clean Water

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Our promise to you

Our Mission

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Our Ideals