Manville Water Supply Corporation
EPA ID: TX2270033 · 39,648 people served · 12 ZIP codes
ZipCheckup's reading of EPA SDWIS for Manville Water Supply Corporation (TX2270033): 4 past health-based violations, since resolved. Over the tracked period, Manville Water Supply Corporation logged 9 EPA violations - each has been remedied, and the system now supplies 39,648 people in good standing.
Data: EPA SDWIS
Service Area Map
Coverage area for Manville Water Supply Corporation Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Manville Water Supply Corporation serves a community with a median household income of $92,882 and an estimated 385,142 residents across its service area.
🌊 Where Does Your Water Come From?
Manville Water Supply Corporation's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
Detected Contaminants
How Manville Water Supply Corporation compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 6 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Total Coliform at 2 presence exceeds the EPA maximum of presence.
Lead and Copper Rule at 1 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 107 detections recorded. 31 exceed federal EPA limits (4 ppt for PFOA/PFOS).
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Texas
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Manville Water Supply Corporation (EPA ID: TX2270033) is a community water system in Texas that serves approximately 39,648 people from surface water sources.
This system provides water to 12 ZIP codes across 10 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 9 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| March 2, 2026 | Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| February 14, 2026 | Lead and Copper Rule | Non-health-based | Resolved |
| October 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Resolved |
| July 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Resolved |
| June 5, 2025 | Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| April 9, 2025 | Total Coliform | Non-health-based | Resolved |
| April 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Resolved |
| January 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Resolved |
| October 16, 2024 | Total Coliform | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 6 | Yes |
| Total Coliform | Microbiological | 2 | No |
| Lead and Copper Rule | Treatment Failure | 1 | No |
Health Risk Details
Haloacetic Acids (HAA5) (EPA limit: 0.06 mg/L)
Cancer risk; reproductive & developmental effects At-risk groups: pregnant women, infants, long-term consumers of chlorinated municipal water.
Removal methods: granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter →
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.00141 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by TX or modeled from parcel and building-footprint data.
- 76574 - Taylor
- 76577 - Thorndale
- 76578 - Thrall
- 78615 - Coupland
- 78621 - Elgin
- 78634 - Hutto
- 78653 - Manor
- 78660 - Pflugerville
- 78664 - Round Rock
- 78724 - Austin
- 78725 - Austin
- 78754 - Austin
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Manville Water Supply Corporation (TX2270033) on EPA.gov.
Frequently Asked Questions
Is Manville Water Supply Corporation water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Manville Water Supply Corporation; its 9 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Manville Water Supply Corporation serve?
Manville Water Supply Corporation serves approximately 39,648 people across 12 ZIP codes in Texas.
Where does Manville Water Supply Corporation get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Above Current MCL
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). One or more PFAS compounds were measured above the current state-enforceable MCL.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
- #19 / 50 Most Unresolved Health Violations (Texas)
- #25 / 50 Highest Exposure Burden (Texas)
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Manville Water Supply Corporation (TX): 4 Health Violations. https://zipcheckup.com/water-system/tx2270033/
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author = {{ZipCheckup}},
title = {{Manville Water Supply Corporation (TX): 4 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/tx2270033/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Manville Water Supply Corporation (EPA ID: TX2270033) - request the latest Consumer Confidence Report or ask about specific contaminants.