Grissom Arb, IN: High Radon Risk — 40/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Water systems serving Grissom Arb record elevated violation rates against IN benchmarks — residents in affected areas may want to check their local system's current compliance status.
How Grissom Arb Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Grissom Arb Residents
- Estimated remediation: $1,200 per household.
- CDC health risk index: 15.62 — above typical levels.
Grissom Arb's Water Providers
Federal drinking water records identify 2 systems in Grissom Arb, IN. The leading 2 providers serve the largest share of residential connections, each operating as a separate entity with its own rate authority, infrastructure management, and EPA compliance obligations — so service conditions are not uniform city-wide.
Overview
We track water quality and home safety data for 1 ZIP code in Grissom Arb, Indiana, covering 2 community water systems serving approximately 3,400 people.
No EPA violations recorded across any ZIP codes in Grissom Arb — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Grissom Arb: D (40/100)
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
Grissom Arb water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Grissom Arb
- 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.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 46971 | D | Peru Utilities/grissom | 2,500 |
All ZIP Codes in Grissom Arb
- 46971 [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.
Grissom Arb 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 Grissom Arb
- 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 Grissom Arb, IN