Water Quality in Grafton, WI (53024)
EPA violation data for public water systems serving ZIP code 53024.
Active Health Violations
1 health-based violation 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 70% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
18,982
Population
32
Water Systems
12
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (32)
Grafton Waterworks
Welcome Mart
Ozaukee Congreg Church & Parish House
Ozaukee Congreg Fellowship Hall
Cornerstone Church
Vineyard Community Church
Mccormicks Ii
Edgewater Golf Club
St Johns Lutheran Church
Our Savior Lutheran School & Church
Ozaukee County Humane Society
Hickory Shade
All resolvedAdvanced Manufacturing Technologies Inc
Carpets Galore
Stonecroft Condominium Assn
1 health-basedGhost Town Tavern & Restaurant
Mr Zs Fundraising Corp
Fire Ridge Golf Club
Cedar Junction
All resolvedThe Family Farm
Seek Inc
Dds-Sc
Fiddleheads Coffee Roasters
Pw Lake View Estates Llc
All resolvedPort Motel Inc
Mccormicks Place
Gerald Smallish & Sons Contractors
Premier Foods
Klt Construction
Lime Kiln Park Area 4
Solvay Animal Health Group
Ozaukee Daycare Center - Ulao
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Missed testing deadlines — not a detection of bacteria.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Grafton (53024) has more violations than 70% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 12.
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.