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Preserving the South Washington Watershed District for Generations

Explore The Watershed

Use our interactive map to find watershed boundaries, locate water bodies, and identify your place in the watershed

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Stay updated on watershed projects, water quality updates, and upcoming events with our newsletter

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What We Do

Cleaner Water, Stronger Communities

At SWWD, we work to protect, restore, and manage our watershed to ensure clean water, resilient landscapes, and thriving communities.

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Water Quality Management

Read about how SWWD monitors and manages water quality in our local lakes and rivers.

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Permits & Regulations

Learn about how SWWD works with local municipalities to ensure our water bodies and natural resources are protected.

Explore the Watershed

A guide to connecting with the natural resources across the South Washington Watershed District.

Our Water

Are you in the watershed?

Use out interactive map to explore the watershed boundaries, locate water bodies, and see where you land in the watershed.

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Projects

Explore SWWD Projects

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Hasenbank Stormwater Park

Hasenbank Stormwater Park

Where stormwater management and woodland restoration meet public art and green space.

Trout Brook Stream Restoration

Trout Brook Stream Restoration

Trout Brook is a cold water stream  located just west of the St. Croix River that flows through parts of Afton State Park and Afton Alps Ski resort. South Washington Watershed District identified Trout Brook as a site for restoration to improve water quality.

Wilmes Lake Alum Treatment Facility

Wilmes Lake Alum Treatment Facility

The Wilmes Alum Facility is a large-scale project that utilizes an aluminum sulfate filtration system that will improve water quality and clarity in Wilmes Lake.

East Mississippi Underground BMPs

East Mississippi Underground BMPs

A underground system to prevent sediment, leaf litter, trash, excess nutrients, and other debris from entering the Mississippi River. This project works to reduce harmful stormwater runoff into the Mississippi River through Best Management Practices (BMPs).

News

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