Cleaning Up the Yard?

WLSSD Yard Waste Site Open!

Expanded Days Start May 4

Field Green® Biosolids

Making High-Quality Fertilizer

Helping local farmers and mines

Energy innovations

Harnessing Energy from Wastewater

Combined Heat & Power Project

It's a No Drainer

Dispose of Unwanted Medicine

Safe, Convenient Options

Disposal Guide

Check out our disposal guide on how to safely recycle or dispose of common household or business items.

Learn more

Hours & Facilities

WLSSD has multiple locations to provide services for the 530-square-mile region it serves.

View hours and facilities

Preventing pollution, protecting the environment

Established in 1971 to improve and protect the waters of the St. Louis River, Western Lake Superior Sanitary District (WLSSD) treats all municipal and industrial sewage in the Duluth-Cloquet area. It operates multiple wastewater treatment and solid waste facilities.

WLSSD is committed to preventing pollution and protecting the environment, including the region’s most precious resource – Lake Superior.

Clean water. The benefits are clear.


Rewarding careers in a broad range of professions.

Work with WLSSD
Female WLSSD employee in laboratory with Erlenmeyer flask


Reduce, Reuse, Recycle- Doggie Style

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