Austin County Water Supply Corporation 4
EPA ID: TX0080043 · 681 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Austin County Water Supply Corporation 4 (TX0080043): 4 unresolved EPA violations on record. Looking at the EPA enforcement file for Austin County Water Supply Corporation 4, 4 violations are listed as unresolved - those findings cover the utility's service area of approximately 681 people and remain open in the federal compliance system, awaiting formal corrective action documentation.
Data: EPA SDWIS
Service Area Map
Coverage area for Austin County Water Supply Corporation 4 Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Austin County Water Supply Corporation 4 serves a community with a median household income of $76,210 and an estimated 14,846 residents across its service area.
Environmental Justice Note: 33% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Austin County Water Supply Corporation 4's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Detected Contaminants
How Austin County Water Supply Corporation 4 compares to EPA limits
What This Means For You
Revised Total Coliform Rule at 4 presence exceeds the EPA maximum of presence.
Stage 2 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Stage 1 DBP Rule at 1 mg/L exceeds the EPA maximum of mg/L.
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
Austin County Water Supply Corporation 4 (EPA ID: TX0080043) is a community water system in Texas that serves approximately 681 people from groundwater sources.
This system serves ZIP code 77474 in Sealy.
Violation History
Status breakdown for accepted records with record years 2021-2026: 7 resolved, 0 archived, 0 addressed, and 4 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 |
|---|---|---|---|
| April 16, 2026 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| July 1, 2025 | Surface Water Treatment Rule | Non-health-based | Unaddressed (current) |
| July 1, 2025 | Revised Total Coliform Rule | Non-health-based | Resolved |
| May 15, 2025 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| December 30, 2024 | Stage 1 DBP Rule | Non-health-based | Unaddressed (current) |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Non-health-based | Resolved |
| July 1, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2024 | Revised Total Coliform Rule | Non-health-based | Resolved |
| April 1, 2024 | Revised Total Coliform Rule | Non-health-based | Resolved |
| January 1, 2024 | Revised Total Coliform Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Revised Total Coliform Rule | Microbiological | 4 | No |
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
| Surface Water Treatment Rule | Treatment Failure | 2 | No |
| Lead and Copper Rule | Treatment Failure | 2 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 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.
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.
- 77474 - Sealy
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Austin County Water Supply Corporation 4 (TX0080043) on EPA.gov.
Frequently Asked Questions
Is Austin County Water Supply Corporation 4 water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 4 current noncompliance records and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Austin County Water Supply Corporation 4 serve?
Austin County Water Supply Corporation 4 serves approximately 681 people across 1 ZIP code in Texas.
Where does Austin County Water Supply Corporation 4 get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
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 →
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Austin County Water Supply Corporation 4: 1 Health Violation. https://zipcheckup.com/water-system/tx0080043/
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author = {{ZipCheckup}},
title = {{Austin County Water Supply Corporation 4: 1 Health Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/tx0080043/}
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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
Austin County Water Supply Corporation 4 (EPA ID: TX0080043) - request the latest Consumer Confidence Report or ask about specific contaminants.