Water Quality in Hamilton, OH (45003)
EPA violation data for public water systems serving ZIP code 45003.
Past Health-Based Violations
1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 5 monitoring/reporting violations.
More violations than 57% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
839
Population
11
Water Systems
6
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (11)
Butler Co. Water District 2 Pws
All resolvedHamilton Public Water System
All resolvedHamilton/South Water Plant
Middletown City Pws
Fairfield City Pws
Southwest Regional Water District
Oxford City Pws
Swr Water District South Plant Pws
Odnr-Hueston Woods/North Plant
West College Corner Wate
College Corner Water
1 health-basedContaminants Found
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Hamilton (45003) has more violations than 57% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 6.
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.