Water Quality in Joliet, IL (60431)
EPA violation data for public water systems serving ZIP code 60431.
Active Health Violations
3 health-based violations 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 79% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
27,138
Population
45
Water Systems
21
Violations (5yr)
3
Health-Based
Location
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Water Systems Serving This Area (45)
Joliet
1 health-basedIl American-West Suburban
Romeoville
Plainfield
Oswego
All resolvedYorkville
All resolvedCrystal Lawns Addition Improvement Assoc
Grace Bible Church
Cutting Edge Catering
Goodnow Grove - Crete
Joliet Inpatient Treatment Center
St Francis Xavier Church
All resolvedTroy Shorewood School South
Joliet Treatment Center
Shorewood Church Of God
Rons Sports Lounge
White Hen Pantry
Prairie Tank Co.
Ks Acquisition
Joliet Food Mart
Leisure Lake Membership Resort
1 health-basedRovanco Piping System Inc
1 health-basedCustom Craft Cabinetry
Midland Metalcraft Co. Inc.
Burrito King
Grate Signs
Joliet Case Power & Equipment
A-C Electric Co. Of Joliet Inc
District 5 State Police
District 5 State Police
Rogers Cartage Co
Michigan & Wisconsin Pipeline
Illinois Dept Of Transportatio
Mobil Oil Corporation
Parkview Mhp
Holiday Plumbing Inc
Raillo
Contractor'S Supply Co
H & R Pump Co
Holiday Plumbing Inc
Illinois Dept Of Transportatio
East Lawn Barber Shop
Greenfield Cmnty Well Cmpny
Will Co Ford Tractor Inc.
Dist 5 Headquarters
Contaminants Found
Annual water quality report delivery requirement.
Missed testing deadlines — not a detection of bacteria.
Used to disinfect water — generally safe at regulated levels.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
Copper (Cu)
Exceeds limitSampled: Jan 2025
How Does This Compare?
Joliet (60431) has more violations than 79% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 21.
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
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
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.