Rockwall, TX: 2 Health Violations — 89/100 (2026)
2 ZIP codes · 11 water systems · Updated 2026-06-03
Residents of Rockwall generally live with tap water that beats the TX safety average on key EPA compliance metrics.
How Rockwall Compares
Data: EPA SDWIS Last verified: 2026-06-03
Rockwall Water: The Quick Version
- Your city's water systems recorded 20 violations in the past 5 years.
- Average lead level: 0.0022 mg/L.
- Homes built before 1986: 19% — older plumbing may contain lead solder.
- Estimated remediation: $2,000 per household.
- CDC health risk index: 10.88.
Water Systems Serving Rockwall
With 3 utilities splitting service in Rockwall, TX, water accountability is distributed across 11 systems on the federal record.
Overview
We track water quality and home safety data for 2 ZIP codes in Rockwall, Texas (population ~79,681), covering 11 community water systems serving approximately 226,825 people region-wide.
2 of 2 ZIP codes (100%) have recorded EPA violations. 2 health-based violations documented.
Home Safety Score
Average Home Safety Score for Rockwall: A (89/100)
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
Rockwall water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0022 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 2 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | 6 | 2 |
| Surface Water Treatment Rule | Treatment Technique | 6 | 2 |
| Lead and Copper Rule | Treatment Technique | 6 | 2 |
| Consumer Confidence Report Rule | Reporting | 6 | 2 |
| Stage 1 DBP Rule | Treatment Technique | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 75032 | A | 10 | 1 | City of Rockwall |
| 75087 | A | 10 | 1 | City of Rockwall |
All ZIP Codes in Rockwall
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 Rockwall
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
Key Contaminants Detected in Rockwall
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Rockwall's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Housing age matters for water quality because lead solder was widely used in plumbing until the 1986 federal ban. Rockwall's median build year of 2006 suggests a majority of homes were constructed under the newer standard — a meaningful factor when assessing household-level lead risk from tap water.
Most homes in Rockwall were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Rockwall: Remediation Cost in Perspective
Equity impact data for Rockwall lands in the favorable tier — remediation claims a small slice of what properties here are worth.
Remediation costs in Rockwall are relatively low compared to home values. The $1,250–$3,200 estimated range is a small fraction of median property value. Home values are 102% above the Texas average.
Protecting Children from Lead in Rockwall
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.
Locally, Rockwall's indicators line up: aggregate readings pass under the regulatory benchmark and the pre-rule housing footprint at 19% keeps lead in a background position.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Rockwall
How does Rockwall's flood record connect to local water quality? The NFIP documents 53 claims — enough to signal recurring events — and 100% of ZIP codes carry FEMA flood zone status. That combination places flooding in the category of factors that can periodically affect water infrastructure, even if the area isn't among the highest-exposure communities in the NFIP dataset.
Rockwall has a moderate flood history with 53 FEMA claims averaging $15,241 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>$2,000</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 Rockwall, TX