Hamilton, IN: 2 Health Violations — 65/100 (2026)
1 ZIP code · 6 water systems · Updated 2026-06-03
The systems supplying Hamilton vary in performance across IN benchmarks — most meet minimum federal standards, but documented violations in select areas are on record.
How Hamilton Compares
Data: EPA SDWIS Last verified: 2026-06-03
Hamilton Water: The Quick Version
- Your city's water systems recorded 11 violations in the past 5 years.
- Average lead level: 0.0036 mg/L.
- Homes built before 1986: 62% — older plumbing may contain lead solder.
- Estimated remediation: $1,500 per household.
- CDC health risk index: 14.2 — above typical levels.
Water Systems Serving Hamilton
Multiple utilities divide Hamilton, IN's water service — 3 leading providers among 6 on the federal register.
Overview
We track water quality and home safety data for 1 ZIP code in Hamilton, Indiana (population ~3,126), covering 6 community water systems serving approximately 7,087 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. 2 health-based violations documented.
Home Safety Score
Average Home Safety Score for Hamilton: C (65/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Hamilton water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0036 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 6 | 1 |
| Consumer Confidence Report Rule | Reporting | 6 | 1 |
| Stage 2 DBP Rule | Treatment Technique | 4 | 1 |
| Contaminant 0700 | Other | 4 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 46742 | C | 11 | 2 | Hamilton Water Department |
All ZIP Codes in Hamilton
- 46742 [C] — 11 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Hamilton
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Hamilton
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Hamilton's Housing Stock?
With 62% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
The character of Hamilton's housing stock is one of deep historical layering — a median build year of 1974 signals a city built largely before the plumbing era changes of 1986 and 1970. Lead-soldered copper joints and, in the oldest properties, lead service lines are commonly present in this inventory. That context shapes what individual water testing may reveal, particularly in neighborhoods where the oldest housing is concentrated.
Over half of homes in Hamilton were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Hamilton: Remediation Cost in Perspective
Across Hamilton, the equity share taken up by estimated remediation is small — a favorable ratio for most property owners.
Remediation costs in Hamilton are relatively low compared to home values. The $950–$2,400 estimated range is a small fraction of median property value. Home values are 42% above the Indiana average.
Protecting Children from Lead in Hamilton
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
62% — that captures the slice of Hamilton housing dating from before the federal ban on solder containing lead. It pairs with aggregate utility readings that either approach or cross 0.015 mg/L, the benchmark set under the EPA Lead and Copper Rule. Together, the two figures shift one-home reads into a standard household-level confirmation, particularly for families with kids. A certified lead-removal filter is available through retailer-verified channels if a kit returns results that warrant additional measures.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Hamilton
100% of ZIP codes in Hamilton are mapped into FEMA-designated flood zones, and the NFIP records 8 claims reflecting a multi-event flood history. That combination places local flood exposure in the range where water-quality implications deserve at least periodic attention.
Hamilton has a moderate flood history with 8 FEMA claims averaging $1,549 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,500</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Hamilton
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for Surface Water Treatment Rule can reduce the most common contaminant found in Hamilton's water.
- Check your home's plumbing. With 62% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Hamilton, IN