Dunn, TX Water Safety: 66/100 (2026)
1 ZIP code · 1 water system · Updated 2026-07-19
ZipCheckup grade for Dunn: C.
A mixed picture - some signals here are worth your attention.
Drilling into federal monitoring figures for Dunn in TX, the pattern is middle-of-the-road - some utilities have documented MCL exceedances or treatment technique violations in recent years, while others have operated without a single flag, making the city's grade a genuine average rather than a rounded-down high.
How Dunn Compares
Data: EPA SDWIS Last verified: 2026-07-19
Water Systems Serving Dunn
The structure of water supply in Dunn, TX is straightforward: one utility provides the bulk of residential service among 1 tracked system, concentrating rate-setting and infrastructure decisions under a single organization.
- C
Overview
We track water quality and home safety data for 1 ZIP code in Dunn, Texas, covering 1 community water system serving approximately 680 people.
No EPA violations are recorded for the tracked water systems in Dunn as of the latest reporting period.
Home Safety Score
Average Home Safety Score for Dunn: C (66/100)
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
Dunn water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Dunn
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 79516 | C | IRA WSC | 680 |
All ZIP Codes in Dunn
- 79516 [C]
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 Dunn
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 Dunn
- 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.
Deep Dive Reports
Detailed analysis for Dunn, TX