Todays Hours
Materials Recovery Center
Closed Today
View All Hours

All Hours:

  • Monday: Closed
  • Tuesday: Closed
  • Wednesday: 8:00 am - 4:30 pm
  • Thursday: 8:00 am - 4:30 pm
  • Friday: 8:00 am - 4:30 pm
  • Saturday: 8:00 am - 4:30 pm
  • Sunday: Closed

Holidays Closed:

  • New Years Day
  • Martin Luther King Day
  • Presidents Day
  • Memorial Day
  • Juneteenth
  • Independence Day
  • Labor Day
  • Indigenous Peoples Day
  • Veterans Day
  • Thanksgiving and Day After
  • Christmas Eve and Christmas Day

Visit Us:

4587 Ridgeview Rd.
Duluth, MN 55803

Questions?

218-722-3336
Email Us
What We Take
Household Hazardous Waste
Closed Today
View All Hours

All Hours:

  • Monday: Closed
  • Tuesday: Closed
  • Wednesday: Closed
  • Thursday: 8:00 am - 4:30 pm
  • Friday: 8:00 am - 4:30 pm
  • Saturday: 8:00 am - 4:30 pm
  • Sunday: Closed

Holidays Closed:

  • New Years Day
  • Martin Luther King Day
  • Presidents Day
  • Memorial Day
  • Juneteenth
  • Independence Day
  • Labor Day
  • Indigenous Peoples Day
  • Veterans Day
  • Thanksgiving and Day After
  • Christmas Eve and Christmas Day

Visit Us:

27th Avenue West & the Waterfront
Duluth, MN 55806

Questions?

218-722-3336
Email Us
What We Take
Yard Waste Compost Site
Closed for the Season
View All Hours

All Hours:

  • Monday: Closed
  • Tuesday: Closed
  • Wednesday: 8:00 am - 4:30 pm
  • Thursday: 8:00 am - 4:30 pm
  • Friday: 8:00 am - 4:30 pm
  • Saturday: 8:00 am - 4:30 pm
  • Sunday: Closed

Holidays Closed:

  • Memorial Day
  • Juneteenth
  • Independence Day
  • Labor Day
  • Indigenous Peoples Day

Visit Us:

27th Av. West & The Waterfront
Duluth, MN 55806

Questions?

218-722-3336
Email Us
What We Take
WLSSD Administration Offices
Opening Soon
View All Hours

All Hours:

  • Monday: 8:00 am - 4:30 pm
  • Tuesday: 8:00 am - 4:30 pm
  • Wednesday: 8:00 am - 4:30 pm
  • Thursday: 8:00 am - 4:30 pm
  • Friday: 8:00 am - 4:30 pm
  • Saturday: Closed
  • Sunday: Closed

Holidays Closed:

  • New Years Day
  • Martin Luther King Day
  • Presidents Day
  • Memorial Day
  • Juneteenth
  • Independence Day
  • Labor Day
  • Indigenous Peoples Day
  • Veterans Day
  • Thanksgiving and Day After
  • Christmas Day

Visit Us:

2626 Courtland Street
Duluth, MN 55806

Questions?

218-722-3336
Email Us
What We Take

Field Green® biosolids practices help environment and farmers

The production and use of biosolids are carefully monitored to ensure a high quality product to protect the environment and meet farmers’ needs.

Quality control starts before wastewater reaches the treatment plant. WLSSD’s  industrial pretreatment program sets limits on chemicals that industries can discharge to the sewer.  Pollution prevention programs help residents and smaller businesses keep unwanted chemicals out of wastewater.

As a result, the levels of metals in WLSSD’s biosolids are far below strictest U.S. Environmental Protection Agency standards. WLSSD tests its biosolids regularly to make sure standards are met.

WLSSD’s certified operators deliver and spread Field Green® biosolids. Fields are inspected before being added to the program to identify soils and water features. Not all fields are suitable for biosolids.

Field Green® crews calculate how much biosolids can be spread on each field, based on crop requirements and field size. Computer databases and maps are used to calculate the acreage of each field and determine buffer zones from water features, such as wetlands. GPS technology is used in the field to stay out of buffer zones and to spread the correct amount of biosolids.

Farmland Benefits

The University of Minnesota Extension has studied the benefits of using biosolids.

Those studies have found that biosolids:

  • Can double grass hay yields
  • Increase the protein content in hay
  • Make hay more digestible for livestock
  • Limit or eliminate the need to buy supplemental feed for livestock

Biosolids Newsletter

The Biosolids Digest newsletter is produced twice annually by WLSSD for farmers, landowners, and other interested parties.