Water Quality in Dekalb, IL (60548)
EPA violation data for public water systems serving ZIP code 60548.
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 76% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
11,721
Population
19
Water Systems
17
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (19)
Dekalb
Oswego
All resolvedYorkville
All resolvedSandwich
All resolvedGerald Breuning
Hideout (52670)
Sannuck Forest Preserve
Jons Mhp
1 health-basedMichigan-Wisconsin Pipeline
Suydam Methodist Church
Olaf Gjovik Chevrolet
Nick & Adam Rushani
Harvest Chapel Assembly Of God
Olaf Gjovik Chevrolet
Michigan Wisconsin Pipeline Co
Sandwich Sportsman'S Club
Sandwich Sportsmans Club
Suydam Methodist Church
Edgebrook Country Club
Contaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
Annual water quality report delivery requirement.
Used to disinfect water — generally safe at regulated levels.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Dekalb (60548) has more violations than 76% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 17.
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.
Reverse Osmosis System
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
Look for:NSF/ANSI 58 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.