Ambient Water Quality Monitoring of the Lower Fox River and Green Bay
The Green Bay Metropolitan Sewerage District (GBMSD) has operated an Ambient Water Quality Monitoring of the Lower Fox River and Green Bay since 1986. This voluntary activity is conducted as part of GBMSD's commitment toward protecting our aquatic environment.

Biological Control of Purple Loosestrife
Purple Loosestrife is a beautiful but aggressive, invasive plant. It originally was introduced into eastern North America from Europe in the 1800s as an ornamental plant. Since then, it has spread over much of the U.S. and Canada.

Protecting Water Quality in Lower Green Bay Through Water Reclamation
The Green Bay Metropolitan Sewerage District (GBMSD) receives wastewater from customers within a 237 square mile service area. The wastewater is treated at GBMSD's water reclamation facility. On average, about 30 million gallons of wastewater are treated every day at GBMSD.

Brown County Recreational Water Monitoring
Since 1993 the Brown County Health Department and Green Bay Metropolitan Sewerage District have conducted collaborative monitoring of some waters of Brown County that are popularly used for water recreation. Monitoring is conducted to assess the suitability of these waters for forms of recreation including swimming, wading, water skiing, and boating.

Effects of Zebra Mussels on Lower Green Bay
Zebra mussels are not native to Green Bay or the Great Lakes. They were accidentally introduced into the Great Lakes in the 1980s from the ballast water ships from Europe. The first Zebra mussels appeared in Green Bay in the 1990s. Since then, they have established large populations throughout Green Bay.