Every year, we complete pillar projects aimed at improving water quality in Big Green Lake. This work is important, but the GLA also recognizes that this is just the beginning of addressing the lake's problems. We will need to scale up our efforts even more in the face of environmental and human inputs that threaten its water quality.


The projects are divided into three categories known as our pillar projects. They are:

Project Clean Streams, Project Green Acres, Project Invader Defense.



Stream and wetland restoration to reduce the amount of phosphorus entering Green Lake.


$80,000 per mile of restored stream


Eight streams, also known as tributaries, flow into Big Green Lake. Some of these tributaries are classified as exceptional waters while others are listed on the impaired waters list. 

1. Assembly Creek, 0.2 miles long

2. Dakin Creek, 6.2 miles long

  • Restored: 3,600 feet

3. Hill Creek, 1.8 miles long

  • Restored: 9,740 feet

4. Roy Creek, 7.2 miles long

  • Restored: 9,689 feet

5. Silver Creek, 34 miles long

  • Restored: 842 feet

6. Spring Creek, 2.5 miles long

  • Restored: 3,600 feet

7. Wuerches Creek, 4.4 miles long

  • Restored: 892 feet

8. White Creek, 1.1 miles long

  • Restored: 520 feet



Since over 65% of our drainage area is agricultural, we have to think beyond our lake and think about the 107 square miles that drain into Big Green. Project Green Acres focuses on building a community of farmers who are economically and environmentally sustainable.

Since the average age of a farmer in Green Lake is 65 years old, we must invest in educating the next generation of farmers. As part of our Agricultural Stewards Scholarship program, we send farmers to workshops to learn about practices that are good for the land and good for Green Lake. 

We also helped launch the watershed's first-ever demonstration farm at Pollack-Vu Dairy. It's an important informational resource for other farmers in our watershed.

Each year, we host a Land & Lake Family Field Day. This day helps display the economic and environmental impact of implementing best management practices. 




Green Lake's tiny zebra mussels carry a massive reminder that invasive species permanently damage our lake. We've made it a top priority to manage the invasive species Big Green has and to make sure no additional species invade our waters.

Since there's no going back once invasive species infect our lake, we're equally focused on preventing new aquatic invasive species from hitching a ride to Green Lake.