Shamrock, TX: 1 Health Violation — 86/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Based on current monitoring, Shamrock holds an above-average drinking water safety record for TX — violations are infrequent and typically minor when they do appear.
How Shamrock Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Shamrock Residents
- Your city's water systems recorded 2 violations in the past 5 years.
- Homes built before 1986: 76% — older plumbing may contain lead solder.
- Estimated remediation: $2,100 per household.
- CDC health risk index: 14.66 — above typical levels.
Shamrock's Water Providers
For most households in Shamrock, TX, tap water comes from one provider — the utility that controls the local distribution system out of 1 tracked in federal record.
Overview
We track water quality and home safety data for 1 ZIP code in Shamrock, Texas, covering 1 community water system serving approximately 2,406 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 1 health-based violation documented.
Home Safety Score
Average Home Safety Score for Shamrock: A (86/100)
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
Shamrock water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Shamrock
- 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 |
|---|---|---|---|
| Lead | Inorganic | 2 | 1 |
| Consumer Confidence Report Rule | Reporting | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 79079 | A | 2 | 1 | Shamrock Municipal Water System |
All ZIP Codes in Shamrock
- 79079 [A] — 2 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.
Shamrock 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 Shamrock's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Shamrock Infrastructure Age
With 76% 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
Shamrock's housing stock is predominantly older, with a median build year of 1964 that reflects decades of construction before federal plumbing standards were tightened. The 1986 ban on lead solder and the pre-1970 era of lead service lines are both relevant benchmarks here — a significant share of the residential inventory predates one or both of those cutoffs, creating an elevated baseline for plumbing-related lead risk that aggregate water quality data may not fully reflect at the household level.
Over half of homes in Shamrock 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.
How Remediation Costs Compare in Shamrock
Viewed from a financial planning lens, Shamrock sits in the high remediation-share tier — the equity impact of addressing documented issues is material, and deliberate preparation is more than a convenience here.
At 2.5% of home value, remediation costs in Shamrock represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $1,350–$3,100. Home values here are 63% below the Texas average.
Shamrock: 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.
Before the federal solder ban, lead solder was a routine plumbing material, and 76% of the Shamrock inventory was built in that earlier era — a share large enough to move household-level reads onto the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Shamrock: Flood History & Water Damage Risk
Multiple flood events have been recorded for Shamrock through the NFIP — 1 claim in total, with 100% of ZIP codes in FEMA-designated zones — pointing to a flood exposure profile that merits inclusion in a water quality assessment without reaching high-severity planning territory.
Shamrock has a moderate flood history with 1 FEMA claims averaging $29,964 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>$2,100</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.
Deep Dive Reports
Detailed analysis for Shamrock, TX