Prior to 2022, three separate water departments — with three different specialties — worked independently to provide quality water services and ensure the public health of the Greater Ann Arbor community. Today, these three units are working together as one —
Ann Arbor Water — committed to excellence, scientifically based data and innovative solutions.
Cold water can hold more air than warm water, so when the pipes are cold and the water is put into a glass in your warm house, the water can no longer hold as much air. Therefore, you see the airREAD MORE »
Water Treatment >Stormwater >
Wastewater Treatment >Public Works >
If you suspect, see or experience a sanitary sewer back-up, possible sewage leak (if you smell sewage for example), water main break, rusty water, plugged storm drain, basement flooding or unusually low or no water pressure, please contact us by phone.
DaytimeMonday-Friday, 7:30 a.m. to 5:30 p.m.734.794.6320
After HoursEvenings, weekends and holidays734.994.2840
Water from local groundwater wells and the Huron River are blended and put through a rigorous treatment process to provide safe drinking water.
Our stormwater management embraces the newest thinking and takes advantage of a state-of-the-art storm drain system designed to protect the Huron River.
Wastewater treatment is the process of creating clean water, nutrients, renewable energy and other valuable bio-based materials from wastewater.
As stewards of the environment for future generations, our mission is to protect and preserve the Huron River — and the health of the Ann Arbor community — by providing a high-quality water system.
Get Updates from the City