Grandfalls, TX: 9 Violations — 81/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Grandfalls's tap water quality puts it in TX's upper tier — health-based violations are rare and the compliance record is consistently above average.
How Grandfalls Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Grandfalls Residents
- Your city's water systems recorded 9 violations in the past 5 years.
- Homes built before 1986: 50% — older plumbing may contain lead solder.
- CDC health risk index: 12.95 — above typical levels.
Grandfalls's Water Providers
2 water utilities share the residential service territory in Grandfalls, TX — out of 2 total systems in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Grandfalls, Texas (population ~593), covering 2 community water systems serving approximately 2,749 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Grandfalls: B (81/100)
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
Grandfalls water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Grandfalls
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 12 | 1 |
| Revised Total Coliform Rule | Microbiological | 4 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 79742 | B | 9 | 0 | Southwest Sandhills Water Supply Corporation |
All ZIP Codes in Grandfalls
- 79742 [B] — 9 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.
Grandfalls 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's in Grandfalls's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Grandfalls Infrastructure Age
With 50% 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
Two dates define the high-risk tiers of residential plumbing from a lead standpoint: 1970, before which lead pipes were commonly installed for service connections, and 1986, before which lead solder was standard in copper plumbing. A median build year of 1984 places Grandfalls's housing distribution well within that older risk zone. The bar chart above breaks down how much of the stock falls into each era — and the pre-1986 share alone represents more than half the residential inventory, making plumbing-era risk a defining characteristic of the local water safety picture.
Over half of homes in Grandfalls 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.
Grandfalls: Lead Risk & Vulnerable Populations
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.
Wherever 50% of local housing was built before solder rules changed — as is the case in Grandfalls — a faucet-level sample closes the gap that aggregate utility data cannot.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Grandfalls, TX