!– Twitter Card data –>
<!– Open Graph data –>
Strategic Plan & Performance
GIS Maps and Data
Rain Gauge Data
Blue Notes Newsletter
Blue Notes Newsletter Sign-up
What We Do
Education and Outreach
Milwaukee Estuary AOC Projects
What You Can Do
Become a Fresh Coast Guardian
Home HazMat Collection
Water Drop Alert
What Not to Flush
Construction and CAD Standard Documents and Special Bid Attachments
Events & Outreach
Contract Compliance Login
Government & Business
Rules & Regulations
Private Property I & I
Pipe Check Contractor Resources
Industrial Waste & Pretreatment
Industrial Honor Roll
Total Maximum Daily Loads (TMDL)
2050 Facilities Plan
2020 Water Quality Initiative
The Milwaukee Metropolitan Sewerage District (MMSD) reported the following information to the Wisconsin Department of Natural Resources regarding sewer overflows that resulted from the record-setting rain event from heavy rain and snowmelt on February 27, 2023, to March 1st, 2023.
To reduce the risk of wastewater backing up into homes and businesses, a combined sewer overflow started at 11:30 am on February 27, 2023, and ended on March 1st, 2023, at 8:00 am.
MMSD Rain gauges showed at least six areas in the service area that received more than two inches of rain on top of melting snow on February 27, 2023.
One inch of rain in MMSD's service area equals 7.1 billion gallons of water.
To view a map of the impacted waters from the sewer overflow in the Greater Milwaukee area.
As a region, we've invested over $4 billion to reduce sewer overflows. MMSD's current financial forecast through 2032 calls for investing $3.4 billion in clean water infrastructure, flood management, green infrastructure, and debt financing to help protect public health and Lake Michigan.
Receive Water Drop Alert text messages when heavy rain threatens the area. When a Water Drop Alert has been issued a reminder is sent to use less water until the rain passes.
What do you do when an alert is issued?