Water Quality in Fond Du Lac, WI (54935)
EPA violation data for public water systems serving ZIP code 54935.
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.
41,613
Population
96
Water Systems
13
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (96)
Fond Du Lac Waterworks
1 health-based Groundwater 44,303 people served
2 violations (5yr)
· 1 health-based · All resolved
Lead tested: 7.9 ppb (limit: 15 ppb) ✓
Fond Du Lac Tn Water Utility
1 health-based Purchased groundwater 980 people served
4 violations (5yr)
· 1 health-based
Lead tested: 3.6 ppb (limit: 15 ppb) ✓
Lakeview Mart
Groundwater 510 people served
0 violations
Sunset On The Water Grill & Bar
Groundwater 360 people served
0 violations
Red Cabin At Green Acres
All resolved Groundwater 254 people served
2 violations (5yr)
· All resolved
Grande Cheese Co Brownsville
Groundwater 230 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Fondy Sports Complex Inc
Groundwater 204 people served
0 violations
Fondy Aqua Park
Groundwater 204 people served
0 violations
Vernon Estates
Groundwater 185 people served
0 violations
Actus Nutrition Fond Du Lac
Groundwater 177 people served
1 violation (5yr)
Lead tested: 0.54 ppb (limit: 15 ppb) ✓
Lukes Tap
Groundwater 154 people served
0 violations
B Athletics Coaching And Nutrition
Groundwater 154 people served
0 violations
3 Sheets To Winnebago
Groundwater 154 people served
0 violations
Saint Peter Catholic Church
Groundwater 151 people served
0 violations
Evans Products Co Grossmans
Groundwater 150 people served
0 violations
Grace Christian Church
Groundwater 142 people served
0 violations
Bobbys Gas & Food Mart
Groundwater 127 people served
0 violations
Ashwood Grove 7
Groundwater 119 people served
0 violations
Hwy 151 Amoco
Groundwater 108 people served
0 violations
Whispering Springs Golf
Groundwater 103 people served
0 violations
Station 26
Groundwater 103 people served
0 violations
Thornbrook Golf Course
Groundwater 103 people served
0 violations
Columbia Park Restrooms
Groundwater 102 people served
0 violations
Do It All Sports Arena
Groundwater 102 people served
0 violations
St Johns Catholic Ch Hall
Groundwater 101 people served
0 violations
Station Howards Grove
Groundwater 101 people served
0 violations
Grande Cheese Wyocena
Groundwater 100 people served
0 violations
Lead tested: 1.8 ppb (limit: 15 ppb) ✓
Ashwood Grove 8
Groundwater 95 people served
0 violations
Party Palace
All resolved Groundwater 82 people served
2 violations (5yr)
· All resolved
Fond Du Lac Co Pk Waupun South Well
Groundwater 81 people served
0 violations
Camp Tiwaushara Dining Hall
Groundwater 75 people served
0 violations
Camp Tiwaushara Swim Pool
Groundwater 75 people served
0 violations
Camp Tiwaushara Wright Place
Groundwater 75 people served
0 violations
Advocap Inc Headstart
Groundwater 75 people served
0 violations
Lead tested: 0.54 ppb (limit: 15 ppb) ✓
Du Netts Steak House
Groundwater 64 people served
0 violations
Camp Canahiti
Groundwater 60 people served
0 violations
Jims Bar
Groundwater 55 people served
0 violations
Marghaels Banquet Hall
Groundwater 55 people served
0 violations
Tommy J S
Groundwater 52 people served
0 violations
Silica Pub
All resolved Groundwater 52 people served
2 violations (5yr)
· All resolved
Fond Du Lac Co Pk Waupun Pool
Groundwater 50 people served
0 violations
Northway Motel
Groundwater 50 people served
0 violations
Wolf Lake Co Pk
Groundwater 50 people served
0 violations
Firstar Bank
Groundwater 48 people served
0 violations
Action Advertising Inc
Groundwater 45 people served
0 violations
Fishermans Cove
Groundwater 42 people served
0 violations
Service Motor Co
Groundwater 42 people served
0 violations
Fond Du Lac Co Airport Main Bldg
Groundwater 38 people served
0 violations
Breezy Hill Campground - Main Well
Groundwater 38 people served
0 violations
Calumet Harbor Marina Shower
Groundwater 35 people served
0 violations
Calumet Harbor Marina Docks
Groundwater 35 people served
0 violations
Skelly Daves
Groundwater 30 people served
0 violations
Mobil Service Station
Groundwater 30 people served
0 violations
Lamartine United Methodist Church
Groundwater 26 people served
0 violations
Gudmundsons Nursery
Groundwater 25 people served
0 violations
Postilion, The
Groundwater 25 people served
0 violations
Elmwood Elementary
Groundwater 25 people served
0 violations
Empire Bar
Groundwater 25 people served
0 violations
Lake Vw Motel & Resort
Groundwater 25 people served
0 violations
Heidemanns On The Lake
Groundwater 25 people served
0 violations
Station Taycheedah & Eden Grill
Groundwater 25 people served
0 violations
Durochers Bar
Groundwater 25 people served
0 violations
Lone Star Tavern
Groundwater 25 people served
0 violations
Braun Hardware Inc
Groundwater 25 people served
0 violations
Green Thumb Garden Center
Groundwater 25 people served
0 violations
Club 41
Groundwater 25 people served
0 violations
Breezy Hill Campground Well #2 East
Groundwater 25 people served
0 violations
Breezy Hill Barn Well
Groundwater 25 people served
0 violations
Lakeview Elementary
Groundwater 25 people served
0 violations
Highway 45 Wayside
Groundwater 25 people served
0 violations
Riggs County Park
Groundwater 25 people served
0 violations
Hounsell Greenhouse
Groundwater 25 people served
0 violations
Grace Christian Academy
Groundwater 25 people served
0 violations
Club 23
Groundwater 25 people served
0 violations
Mills Fleet Farm
Groundwater 25 people served
0 violations
Fond Du Lac Co Airport Hanger
Groundwater 25 people served
0 violations
Airport Tavern
Groundwater 25 people served
0 violations
Roosevelt County Park
Groundwater 25 people served
0 violations
Alberts Pizza
Groundwater 25 people served
0 violations
Green Meadows Mobile Home Pk
Groundwater 25 people served
0 violations
Scooby Dos Ii
Groundwater 25 people served
0 violations
Vinland Still & Grill
Groundwater 25 people served
0 violations
Fond Du Lac Conservation Ctr
Groundwater 25 people served
0 violations
Fond Du Lac Midland Malone
Groundwater 25 people served
0 violations
Oshvegas Palms Resort
Groundwater 25 people served
0 violations
Smugglers
Groundwater 25 people served
0 violations
Clarences Harbor Inc
Groundwater 25 people served
0 violations
Camp Shaginappi 1
Groundwater 25 people served
0 violations
Schmitty'S Bar & Grill
Groundwater 25 people served
0 violations
Copper Kettle
Groundwater 25 people served
0 violations
Wests Ice & Cold Storage
Groundwater 25 people served
0 violations
Villa De Neveu
Groundwater 25 people served
0 violations
Hi Way Fill Up
Groundwater 25 people served
0 violations
Frank Nett Co
Groundwater 25 people served
0 violations
Fond Du Lac Co Park Waupun Campsites
Groundwater 25 people served
0 violations
Riesterer & Schnell-Cross Fit
Groundwater 25 people served
0 violations
Contaminants Found
LEAD AND COPPER RULE REVISIONSHealth-Based
3 violations
All resolved
Public NoticeMonitoring
3 violations
Has active
NitrateMonitoring
At high levels, nitrate can cause blue baby syndrome in infants.
3 violations
All resolved
Revised Total Coliform RuleMonitoring
Missed testing deadlines — not a detection of bacteria.
3 violations
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit0.54 ppb measured
Action level: 15 ppb
Sampled: Sep 2025
How Does This Compare?
Fond Du Lac (54935) 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.
Fewer violations 68th percentile More violations
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.