Online update: Rapid snowmelt causes high flows in WLSSD system

Prepare for possible basement backups


April 14, 2023

Rapid snow melt continues to cause high flows in Western Lake Superior Sanitary District’s (WLSSD) sanitary sewer collection system in Duluth.

Peak flow to the wastewater treatment plant exceeded 120 million gallons per day on Tuesday, April 11th and continues to flow at nearly three times the standard rate of 38 million gallons per day.

With wet weather forecasted for the weekend, WLSSD reminds residents that the spring thaw often brings water related incidents. Residents may experience flooding due to swelling creeks and rivers, sump pump failures or sewer backups. Plan ahead by doing...

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