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City of Port Washington, Wisconsin

City of Port Washington Wastewater Department


On June 25, 2020, a Sanitary Sewer Interceptor was blocked and bypassed into Mineral Springs Creek approximately 500 feet east of the Union Pacific Railroad. The volume was estimated at more than 55,000 gallons. The time it was known to have bypassed was between 1:30 p.m. and 5:30 p.m.

On May 17, 2020, the Wastewater Treatment Plant overflowed east across the public walkway directly into Lake Michigan. The volume was less than 350,000 gallons. The time was 4:30 p.m. to 8:30 a.m. On May 17, 2020, there was also an overflow that took place on East Jackson Street, just south of the bike path through one manhole. The volume was less than 150,000 gallons. The time was 5:30 p.m. to 8:30 p.m. On May 17, 2020, Lift Station 1, located at East Grand Avenue, overflowed into the Marina. The volume was less than 100,000 gallons. The time was 4:30 p.m. to 7:00 p.m.

Please DO NOT flush Disinfectant Wipes down the toilet. These will not break down in the City sewer and can potentially plug your sewer lateral or the main City sewer. In addition they can plug pumps and can cause problems at the plant or on their way to the plant. Despite what some packaging claims, they ARE NOT Flushable for the reason that they will not break down. Please throw them away in the garbage. If you have any questions please call Wastewater Superintendent Dan Buehler at 262-284-5051 or email him at dbuehler@cpwwi.org.

If you discover sewage backing up through your basement floor drain, you are asked to please notify the City prior to contacting a plumber. This allows the City to determine whether the blockage causing the back-up is located in the sewer main or in the sewer lateral. If the blockage is in the main, City crews will be able to correct it in the shortest time frame possible. If the blockage is in the house's lateral, City crews will instruct you to call a plumber. Please contact City Hall if you experience a basement back-up at 262-284-2600 during normal business hours, or, outside of normal business hours, contact the Port Washington Police Department at 262-284-2611.

Although products like facial tissues, dental floss, cotton swabs, and kitty litter may flush down the toilet, they can cause clogged pipes for you and your neighbors. Watch the video below to find out more, from the City of Spokane Department of Wastewater Management.

City of Port Washington, Wisconsin Wastewater Department Contact Us

Wastewater Department
450 N. Lake Street
Port Washington, WI 53074

Wastewater Superintendent
Dan Buehler
450 N. Lake Street
Port Washington, WI 53074

Administrative Assistant
Judy Klumb
100 W. Grand Avenue
Port Washington, WI 53074


City of Port Washington, Wisconsin Wastewater Helpful Publications

Wastewater Brochure

Building Sewer Repair Brochure


City of Port Washington, Wisconsin Official You Tube Channel