Water Quality in Green Lake, WI (54941)
EPA violation data for public water systems serving ZIP code 54941.
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 82% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
2,563
Population
44
Water Systems
25
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (44)
Green Lake Waterworks
1 health-basedAmer Baptist Assem Main
All resolvedChristianos Pizza Green Lake
All resolvedKentucky Fried Chicken
Tuscumbia Golf & Tennis Club
Dakota Capital Mhc Llc
All resolvedGreen Lake Co Park Dodge Memorial
Green Lake Cmpgd K Section
Hinky Dinks
Nortons Marine Dining Room
Kingdom Hall Of Jev Witness
Amer Baptist Assem 4 Store
Carvers On The Lake
Old School Bar & Grill
Lamplighter Mhc Llc
Amer Baptist Assem Golf Snackery
Green Lake Cmpgd Store
Green Lake Medical Bldg
Dartford Inn
Green Way Log Cottages
Amer Baptist Assem Beebe Court
Amer Baptist Assem Montgomery Shaw
Lake Shore Resort
Revs Bowling & 300 Club
All resolvedAmer Baptist Assem Kinbrook
Amer Baptist Assem Log Cabin
Green Lake Trailer Court
Green Lake Cmpgd Pond
Amer Baptist Assem Hathaway
Amer Baptist Assem Hobley Cottage
All resolvedSpring Lake County Park
Amer Baptist Assem 2 Writing
Amer Baptist Assem Pro Shop/Dawson House
1 health-basedChristianos Gift Shops
Wuske Service Station
Hattie Sherwood Park
Amer Baptist Assem Hse Woods
Green Lake Cmpgd Whispering Oaks
Amer Baptist Assem Stambaugh
Classic Auto Service
Zobel Memorial County Park
Trout Rearing Ponds
Pine View Estates
Amer Baptist Assem Wm Carey
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Annual water quality report delivery requirement.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Green Lake (54941) has more violations than 82% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 25.
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
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) 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.