Water Quality in Oshkosh, WI (54901)
EPA violation data for public water systems serving ZIP code 54901.
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 62% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
37,294
Population
68
Water Systems
8
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (68)
Oshkosh Waterworks
1 health-basedNeenah Waterworks
Fox Crossing Utilities West
1 health-basedState Of Wisconsin
Sunset School
Mr Elmers Supper Club
Winnebago Area Sanitary District
Open Pantry
Acton Academy Main
All resolvedKing Industries
Mary & Jims Twin Point Resort
Acton Academy Spark Land
Winnebago Co Pk Shelter 2
Winnebago Co Pk Shelter 3
Mr Rjs Diner
Camp Elsewhere Main Lodge
Winnebago Co Pk Bathhouse
Winne Y Co
Winnebago Co Pk Shelter 1
Winnebago Co Pk Shelter 4
Oriental Palace Restaurant
Camp Hiwela Great Hall
Brickham Stamping Co
Hickory Oaks Cmpgd
Lakeshore Golf Course Handpump 6
Lakeshore Mart
Andys Beachcomber Tavern
Eat N Drink Bar
South Park
Xiangkhouang Market
Lake Poygan Boat Landing
Jailhouse Bar
Winnebago Co Park Eureka Boat
Noffke Lumber Public Well
Winnebago Co Sportsman Pk Bmx
Valley Motel
Winnebago Co Park Butte Des Morts
Camp Hiwela Cit Handpump
Fugleberg Park
Grannys Tavern
Pegasus Riding Club
Cornell Catering
Buckstaff Company
Osh O Nee Boat Landing
Meyer Sausage Company
Menominee Park
Sportsmans Park Bar
Camp Elsewhere Rec Hall
Fountain Tavern
Winnebago Co Soccer
Roys Bar
Tommys Tavern
Camp Hiwela Tent Area
Jesuit Retreat House Abba
Landmark Lounge
Winnebago Co Pk Black Wolf
Camp Hiwela A Frame
Oriental Palace
Woodshed, The
Winne Y Co Day Camp Handpump
Lakeshore Golf Course Clubhouse
North Fond Du Lac Archery Cl
Camp Hiwela Hoheca Admin Bldg
Winnebago Co Waukau Nature Preserve
Rogers Bar
Parnells Place Tavern
Marcos Italian Garden
Sisters Pizza And Subs (Now Car Dealership)
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Sep 2025
How Does This Compare?
Oshkosh (54901) has more violations than 62% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 8.
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.