CITY REPORT TX HEALTH VIOLATIONS: 10

Round Rock, TX - Home Safety Score unavailable

6 ZIP codes · 13 water systems · Updated

Data: EPA SDWIS

6
ZIP Codes
13
Water Systems
3
ZIPs Linked to Systems with Violations
Zone 3
County Radon Potential (Low)
$439K
Median Home Value
$817
Est. Remediation (0.2% of home value)

Round Rock Water: The Quick Version

  • Your city's water systems recorded 46 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.005 mg/L.
  • Estimated remediation: $817 per household.
  • Health risk index (ZipCheckup composite of CDC data): 10.49.

Water Systems Serving Round Rock

3 systems shown for Round Rock, TX, from 13 on the federal list.

Overview

We track home safety data for 6 ZIP codes in Round Rock, Texas (population ~184,890), covering 13 community water systems serving approximately 487,230 people region-wide. The EPA snapshots used for this build directly map water systems to 3 of 6 ZIP codes.

3 of 3 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. 10 health-based violations appear in the available health breakdown.

Water Sources

Round Rock water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0050 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 3 ZIP codes with known status exceed the EPA lead action level

Radon Risk

6 of 6 ZIP records with known zones are in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Total Trihalomethanes (TTHM) Disinfection Byproducts 20 3
Lead and Copper Rule Treatment Technique 16 1
Chlorine Disinfectant 10 3
Public Notice Rule Reporting 9 3
E. coli Microbiological 7 2

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
78681 — 26 3 City of Round Rock
78664 — 17 8 City of Round Rock
78665 — 9 1 City of Round Rock

All ZIP Codes in Round Rock

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Round Rock

9%
Asthma (US: 9.8%)
9.8%
Diabetes (US: 10.4%)
15.5%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 9% ↓
Diabetes 9.8% ↓
Mental Health 15.5% ↑

Vertical line = national average. ■ Above national · ■ Below national

Key Contaminants Detected in Round Rock

Total Trihalomethanes (TTHM) 20 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL
Lead and Copper Rule 16 violations
Treatment Technique
Developmental delays in children, kidney damage
Chlorine 10 violations
Disinfectant · EPA regulatory level for the contaminant named above: 4 mg/L

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Round Rock: Remediation Cost in Perspective

Estimated remediation for Round Rock is a small fraction of median property value - one percent or less - though the ratio does not describe any single household.

Median Home Value
$438,700
Est. Remediation
$817
Remediation as % of home value 0.2%

Estimated remediation costs in Round Rock can be compared with local home values. The $492–$1,400 estimated range can be set against the median property value; actual costs vary by home. Home values are 92% above the Texas average.

Protecting Children from Lead in Round Rock

0.005
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Available area-level lead records for Round Rock do not determine the lead level at an individual tap. Testing is the only way to confirm your water's lead content.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Round Rock

312
Total FEMA Flood Claims
$34,164
Avg Reported Sum With Payment Data
50%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Round Rock contains 312 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $34,164. Among ZIP codes with claim records, 50% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

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. The $817 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

How many violations are on record for water systems serving Round Rock?
EPA records list 46 EPA violations, including 10 health-based violations for Round Rock water systems. These water-system violations are shown for 6 mapped ZIP codes.
Does Round Rock water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Round Rock is 0.005 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Round Rock?
Our records map 13 water systems to 6 ZIP codes in Round Rock. The related population figure in our data is approximately 184,890 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Round Rock?
Estimated remediation cost per household in Round Rock: $817; modeled range $492 to $1,400. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Round Rock, TX - Home Safety Score unavailable. https://zipcheckup.com/cities/tx/round-rock/
BibTeX
@misc{zipcheckup-cities-tx-round-rock,
  author = {{ZipCheckup}},
  title  = {{Round Rock, TX - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/tx/round-rock/}
}

Page version: October 2026.

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