Sanitary Sewer

If you have experienced a sanitary sewer backup, click here.  If the backup is in your lateral it will be your responsibility to remove the blockage.

Sanitary Sewer Utility


The Department of Public Works is responsible for maintaining 55 miles of sanitary sewer main.  This system is not combined with the storm sewer system like some of the systems in the Milwaukee area.   Cudahy does not operate its own sewer treatment facility rather, it is one of 28 other southeastern Wisconsin municipalities where the treatment of sewage is handled by the Milwaukee Metropolitan Sewerage District (MMSD).   Customers served by Cudahy’s sanitary collection system range from single family residential households to very large industrial customers.  The goal of the Utility is to operate under its WPDES permit in a cost-effective manor and provide these customers with a trouble free collection system.

Cost of an Aging Infrastructure

The City of Cudahy is an old City dating back to the 1800s.  The oldest sewers date back to 1902.  With the aging system the City has been replacing its old sewers each year to insure reliability and minimize infiltration of clear water into the system.  The City has had to raise rates in order to maintain and replace these old sewers.  Even with these increases the cost to the customer is very reasonable when you compare it to your monthly electric, gas and cell bill.  On average a household of four pays $23 per month for sanitary collection and treatment. 

How Utility Rates are Calculated

There is a local rate that pays for the repair, replacement and maintenance of the sanitary sewer system.  The local system is comprised of  roughly 1300 manholes ranging in depth from 12’ to 48’ deep, 55 miles of 8” to 48” diameter sewer pipe and one lift station.  There are two local charges: one is a volumetric charge which is based on the amount of water you use and the other is a fixed rate.  Revenue collected from the volumetric charge is used to maintain the system. 

Maintenance of the system includes but is not limited to cleaning & root cutting, inspection, lining, spot repairs, manhole repairs and operations of the lift station.  Revenue from the fixed local rate is used to offset the cost of capital items such as sewer & manhole replacement or large equipment.  A separate charge is the MMSD charge.  That charge is for the cost of the treatment of the sewage.  The City has no control over the MMSD charges. So what you pay for MMSD charges on your City Sewer & Water bill goes back to MMSD.

2015 Sanitary Sewer Charges:
Fixed Connection Rate: $30 (per bill) or $90 annually + $.59 per 100 cubic feet of water usage. 

2015 MMSD Charges:
Fixed Connection Charge: $10.23 (per bill) or $30.69 Annually + $1.32 per 100 cubic feet of water usage.

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