Water Quality in Oshkosh, WI (54963)
EPA violation data for public water systems serving ZIP code 54963.
Active Health Violations
2 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 68% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
7,271
Population
21
Water Systems
13
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (21)
Oshkosh Waterworks
1 health-basedNeenah Waterworks
Fox Crossing Utilities West
1 health-basedOmro Waterworks
All resolvedOmro Junction School
Omro Tn Sanitary Dist No 1
We Community Church Waukau
All resolvedJorgies Tavern
Richard Klime
Poygan Town Hall
Springbrook Tavern
Rews Roadside
All resolvedSchusters Fox River Resort Walleye
All resolvedPlainview Elementary School
Schusters Fox River Resort House
All resolvedWiesners Cmpgd
Dells Christian Cmpgd
Eureka Dam Campsites Lower
Farmstead Saloon
Liberty Bar
Enterprise Elementary School
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Annual water quality report delivery requirement.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Approaching limitSampled: Jun 2025
How Does This Compare?
Oshkosh (54963) has more violations than 68% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 13.
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.