Water Quality in Janesville, WI (53546)
EPA violation data for public water systems serving ZIP code 53546.
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 68% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
29,867
Population
36
Water Systems
11
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (36)
Janesville Water Utility
Beloit City Of
All resolvedCaravilla Education And Rehab Center
1 health-basedKingdom Hall Of Jehovahs Witness-Creston Pk
Rock Prairie United Pres Ch
Rollette Oil Co Kerr Mcgee
Rollette Oil Co Citgo
Blu Astor Cabaret
Rock County Christian School
All resolvedEmerald Grove Congregational Church
Bristol Bp
Rock Prairie Montessori School
Janesville Mobile Terrace
Toxic Inc
Dan Silha Llc
Snuffys Still Inn
Hansons Hollow
Mid-State Equipment Janesville
All resolvedSkellys Farm Market Llc
Mid-State Equipment - Janesville
Hackbarth Hills Golf Course
Bp Travel Plaza
Runway 51
Campis
Janesville Mobile Terr Pk 2
Seneca Foods Corp Ag Shop
Omniflight Helicopters 1 West
Hwy 51 Grocery
Mulligans Inc
A Mccann One Stop Mart
Turf Pro Wisconsin
United Fireplace & Tile
Rinehart Taxidermy Supply Co
A A A Sports
Johnstown Food Center
Omniflight Helicopters
Contaminants Found
Annual water quality report delivery requirement.
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Sep 2025
How Does This Compare?
Janesville (53546) has more violations than 68% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 11.
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.