Delavan Lake Sanitary District....Serving the Residents of the Delavan Lake Area!

The Delavan Lake Sanitary District was created in 1969 to operate and maintain a wastewater collection system serving properties adjacent to and surrounding Delavan Lake. Since 1997 the District has been responsible for the Aquatic Plant Management Program for Delavan Lake as well as various lake monitoring projects and studies in cooperation with Wisconsin DNR and USGS. Since 1995 DLSD has assisted the Town of Delavan in the monitoring lake levels and operation of the Delavan Lake (Borg) Dam facilities.

Recent News

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The contractor is in the process of cutting the electrical lines crossing the sanitary sewer easement for the force main project.  Please DO NOT RE-ENERGIZE the circuit(s).

Installation of silt fencing/erosion control is to start toward the end of this...

DLSD Residents Can Choose To Purchase Service Line Protection


We are pleased to announce a program to further enhance protection to residents.  Service Line Warranties of America (SLWA), a HomeServe Company, a leading provider of home repair solutions, has offered to provide optional repair service plans to our...



The Delavan Lake Sanitary District (DLSD) will be installing a new 12 inch force main within the existing 30-foot-wide easement along the lakefront area to improve needed capacity issues.  The project is estimated to take about 6 to 8 weeks pending weather...