Water Quality in Oshkosh, WI (54902)
EPA violation data for public water systems serving ZIP code 54902.
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 60% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
22,243
Population
25
Water Systems
7
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (25)
Oshkosh Waterworks
1 health-basedNeenah Waterworks
Fox Crossing Utilities West
1 health-basedOakwood Elementary School
Lakeside Elementary School
Oshkosh Country Club Clubhouse
Green Meadow Elementary
Umos Beaver Dam Migrant Head Start Center
Js Food And Spirits
Umos Headstart Ctr Spring Lk
All resolvedKalbus Country Harbor Shower House
Jesuit Retreat House Chapel
Far Vu Golf Course
Umos Camp 047 Montello Cntr
R Campground The
Sleepy Hollow Farm Cmpgd Back 80
Oshkosh Country Club Pool Area
Umos Aurora Shelter & Sch
Jesuit Retreat House Abba Bldg
Kingdom Hall Of Jev Witness Oshkosh
Kalbus Country Harbor
Marine Corps League Bingo
T Js Harbor Restr
Sleepy Hollow Farm Cmpgd
Oshkosh Country Club Maintenance Shop
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Sep 2025
How Does This Compare?
Oshkosh (54902) has more violations than 60% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 7.
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.