Delavan Lake Sanitary District Launches a New Website! Subscribe Today! - January 03, 2019

Delavan Lake Sanitary District is proud to announce the launch of our new website. Subscribe... [more...]


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.

Upcoming Events

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Just a friendly reminder - Delavan Lake Sanitary District Board Meetings are held monthly! The public is always welcome!

Geneva Lake Conservancy is partering with the Geneva Lake Environmental Agency and will be offering seminars for all lakefront property owners and homeowners associations, farmers and citizens concerned about phosphorus runoff in Walworth County.  Thro...

Recent News

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Herbicide and Algaecide Treatments

(1/16/2019) An application for Herbicide and Algaecide treatments along many shorelines located on Delavan Lake has been submitted to the Wisconsin Department of Natural Resources.  This website will post a copy of the permit application, proposed treatment areas,...

Launch of New Website

(1/3/2019) DLSD is excited to announce that our new website has launched and includes current information to meet the DLSD community needs.  Check back often as we will be updating information often to keep you informed of plans, projects and other happenings.&nb...

Rate Increase

(1/1/2019) The user charges in 2019 will increase $2.00 per month to $40.00 per month per residential unit in an effort to cover rising WalCoMet treatment costs and the adjustments to our capital replacement budget.