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Protecting Green Lake into the Next Century | 920.295.4488

Green Lake Sanitary District
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GLSD Spring 2026 Update
GLSD Spring 2026 Update
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What Do Your GLSD Tax Dollars do for Green Lake?
What Do Your GLSD Tax Dollars do for Green Lake?
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Protecting Big Green Lake into the Next Century
Protecting Big Green Lake into the Next Century

Our mission is to engage in activities that preserve, improve, and protect the natural resources of Big Green Lake and its watershed.

About GLSD

The Green Lake Sanitary District, which is located in Green Lake County, Wisconsin, was established in 1964 and includes all of the existing areas around the lake (excluding the City of Green Lake). The District was formed as a means to protect Big Green Lake and its associated resources with respect to sanitation and related land, air and water quality matters. In addition to coordinating solid waste collection in parts of different Townships, the District also oversees the treatment of wastewater from just over 1,400 homes. Of the District’s 2,200+ total tax parcels, there are approximately 800 vacant lots in addition to the 1,400 lots with homes. Of the 1,400 homes, just under 1,000 are served by sewer and the remaining 400 are served by private on-site wastewater treatment systems (septic and holding tank systems). Also included...

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Latest News

County K Marsh Carp Barrier Replacement Project

County K Marsh Carp Barrier Replacement Project

The GLSD is excited to announce the receipt of over $260,000 in State and Federal grants to replace the County K Marsh (CKM) carp barrier and undertake habitat & shoreline improvements within the marsh. Believed by the DNR and the Lake Management Team the...

GLSD Watershed Projects Fund at Oshkosh Community Foundation

GLSD Watershed Projects Fund at Oshkosh Community Foundation

The GLSD operates as both a sewer utility and as a lake district. Through the use of our residents’ tax dollars, we provide services including funding agricultural best management practices in the watershed to improve water quality entering the lake, purchasi...

GLSD Nears Completion of WPDES Construction Project

GLSD Nears Completion of WPDES Construction Project

In August of 2025, the GLSD began construction on DNR-mandated phosphorus compliance upgrades at our Wastewater Treatment facility on County Rd TT and on our new parcels along County Rd T in the Town of Princeton. The construction of a new lift station, stora...

Latest News

The GLSD Welcomes New Staff

WATERSHED COORDINATOR – HANNAH VORRIE(Soon To Be Hannah Niewoehner (Knee-Wah-Ner)Hannah was hired t...
The GLSD Welcomes New Staff

Lake trout release 2022

On April 4th, GLSD and DNR staff moved approximately 30,000 lake trout from our fish rearing facili...
Lake trout release 2022

Results of 2016-2020 Lake Study

In June 2021, a detailed study of Green Lake was completed by the US Geological Survey, Michigan Te...

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ABOUT GLSD

The Green Lake Sanitary District, which is located in Green Lake County, Wisconsin, was established in 1964 and includes all of the existing areas around the lake (excluding the City of Green Lake).

The District was formed as a means to protect Big Green Lake and its associated resources with respect to sanitation and related land, air and water quality matters. In addition to coordinating solid waste collection in parts of different Townships, the District also oversees the treatment of wastewater from just over 1,400 homes.

Garbage Collection Schedule

Garbage is picked up on Monday except for Holidays that fall on Monday

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Green Lake Sanitary District
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