Water Quality in Oshkosh, WI (54964)
EPA violation data for public water systems serving ZIP code 54964.
Active Health Violations
5 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 67% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
974
Population
18
Water Systems
10
Violations (5yr)
5
Health-Based
Location
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Water Systems Serving This Area (18)
Oshkosh Waterworks
1 health-basedFond Du Lac Waterworks
1 health-basedNeenah Waterworks
Fox Crossing Utilities West
1 health-basedCountryside Christian Church
Grace Ev Lutheran Ch Neenah
Ripon Truck Repair & Equipment Llc
2 health-basedPickett Country Market
Pickett Community Ctr
Grace Ev Lutheran Ch Pickett
Elo Church
Jaspers Food & Spirits
Stokely Usa Outside 2
Pickett Cooperative
Pickett Cooperative
Shamrock Pub And Grub
Stokely Usa Inside
Rosendale Town Hall
Contaminants Found
Lead & Copper Levels
Lead (Pb)
Approaching limitSampled: Jun 2025
How Does This Compare?
Oshkosh (54964) has more violations than 67% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 10.
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.