Water Quality in Oshkosh, WI (54986)
EPA violation data for public water systems serving ZIP code 54986.
Active Health Violations
9 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 75% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
5,394
Population
14
Water Systems
16
Violations (5yr)
9
Health-Based
Location
Loading map...
Water Systems Serving This Area (14)
Oshkosh Waterworks
1 health-basedNeenah Waterworks
Fox Crossing Utilities West
1 health-basedWinneconne Waterworks
7 health-basedHaases Supper Club
Lake Breeze Golf Club
Blue Wing Resort
Lord Of The Lakes Church
Hill Tavern
Cove, The
Laplantes Marina & Cmpgd
Lazy Acres Campsite
Cattleman Rib House & Mart
Winneconne Town Hall
Contaminants Found
Lead & Copper Levels
Lead (Pb)
Approaching limitSampled: Jun 2025
How Does This Compare?
Oshkosh (54986) has more violations than 75% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 16.
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.