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General Information

Learn basic information about the Iowa Great Lakes Sanitary District.

Reporting an Issue

What to do and who to contact if there is a sewer issue or a lift station alarm is going off.

Capital Projects

Find out what the Sanitary District has planned for projects to continue to protect public health and the water quality of the Iowa Great Lakes.

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The Iowa Great Lakes Sanitary District (IGLSD) treats municipal wastewater from several communities around the Iowa Great Lakes including; Arnolds Park, Okoboji, Milford, Orleans, Spirit Lake, West Okoboji, Wahpeton and some of the unincorporated areas around the Iowa Great Lakes.

The District’s collection system includes a service area of approximately 12,000 acres. Municipal wastewater includes wastewater from homes as well as businesses and industries within the service area. The wastewater passes through several treatment processes at the Waste Water Treatment Plant (WWTP) to remove pollutants before discharge into Milford Creek. The treated WWTP effluent must meet stringent standards which are defined in the plant’s discharge permit by the Iowa Department of Natural Resources (IDNR). The use of the receiving stream determines the level of water quality and the corresponding limitations on pollutants.

By The Numbers

Miles of Sewer Pipe
Private Connections
Lift Stations
Million gallons treated in 2021
Weekly Water Quality Tests

Latest News, Projects & Announcements

Lakeshore Drive Interceptor Project

This project will be installing an interceptor sewer line at the intersection of Lakeshore Drive by Colcord's Point and going down Lakeshore Drive to Alexander Street.  This sewer line will...

Notice To Bidders Center Lake Phase 2 Sewer Project

This project is for the installation of gravity sewer on the south end of Center Lake in Dickinson County, Iowa.  The project will contain both guided directional boring methods and...

Two Major Project Completed

The Iowa Great Lakes Sanitary District has completed two major projects in the lakes area.  Phase 1 of the Center Lake Project included installing over 17,000 feet of sewer pipe...