Mariah Hill, IN Water Safety: 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Across Mariah Hill, EPA compliance records fall well below IN averages — documented health-based violations affect multiple service areas, and the city's sustained low grade reflects a persistent pattern across reporting cycles.
How Mariah Hill Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Mariah Hill Residents
- Estimated remediation: $400 per household.
- CDC health risk index: 14.69 — above typical levels.
Mariah Hill's Water Providers
One utility dominates residential water service in Mariah Hill, IN — out of 1 system in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Mariah Hill, Indiana, covering 1 community water system serving approximately 3,683 people.
No EPA violations recorded across any ZIP codes in Mariah Hill — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Mariah Hill: D (53/100)
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
Mariah Hill water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Mariah Hill
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 47556 | D | SANTA CLAUS WATER UTILITY | 3,683 |
All ZIP Codes in Mariah Hill
- 47556 [D]
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.
Mariah Hill Community Health Snapshot
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
What You Can Do in Mariah Hill
- 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. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Mariah Hill, IN