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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

Sewer Rate Increases

The Iowa Great Lakes Sanitary District last raised it rates in 2007.  The Trustees had a rate study completed before looking at raising the sewer rates.   The Trustees approved a...

Accepting Sealed Bids for Truck

The Iowa Great Lakes Sanitary District is selling a 2011 Chevrolet regular cab pick up truck.  Detail and the bid sheet may be found at at the link below:  ...

Notice to Bidders for the WWTF Shop, Lab and Office Improvements

TIME AND PLACE FOR FILING SEALED PROPOSALS: Proposals for the work described below will be received online through QuestCDN.com until 2:00 PM on April 18, 2023, at which time the...