Water Quality in Duluth, MN (55733)
EPA violation data for public water systems serving ZIP code 55733.
Active Health Violations
1 health-based violation found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 60% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
5,139
Population
31
Water Systems
7
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (31)
Duluth
Esko Public School, Isd #99
Apostolic Lutheran Church
Esko Sports Complex
Knife Island Campground
All resolvedSt. Matthew'S Lutheran Church
Tequi Town
Ram Mutual Insurance Company
Mini Mos Child Care
Bridgeman'S Ice Cream & Deli
Esko Public School - Community Ed Bldg
Utopia Borealis
Thomson Town Hall
Northwood United Methodist Church
Esko Dental Clinic
Washington Community Center
Township Garage
Transport Inc
Mattson Manufacturing Co
Lincoln School
Country Corner Cafe
Esko Equal Station
Stich-It Designs
Knife Island Campground - Showerhouse
1 health-basedMj Widdes, Inc
Northridge Park
Esko Self Service, Inc.
Ray
Big Jims
Esko Museum
Esko Post Office
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Exceeds limitSampled: Jan 2025
Copper (Cu)
Exceeds limitSampled: Jan 2022
How Does This Compare?
Duluth (55733) has more violations than 60% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 7.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Whole House Carbon Filter
A solid baseline for improving overall water quality. Reduces chlorine, sediment, and many common contaminants throughout your entire home.
Targets:Chlorine, Sediment, Taste & Odor
Look for:NSF/ANSI 42 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.