Harris-fort Bend Counties Municipal Utility District 3
EPA ID: TX1013365 · 9,297 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Harris-fort Bend Counties Municipal Utility District 3 (TX1013365): 5 EPA violations in the last five years. While 5 violations did appear in Harris-fort Bend Counties Municipal Utility District 3's five-year monitoring record, none remain unresolved - the utility has returned to full compliance and continues to serve approximately 9,297 residents under all current EPA drinking water standards.
Data: EPA SDWIS
Service Area Map
Coverage area for Harris-fort Bend Counties Municipal Utility District 3 Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Harris-fort Bend Counties Municipal Utility District 3 serves a community with a median household income of $146,105 and an estimated 137,213 residents across its service area.
💧 Where Does Your Water Come From?
Harris-fort Bend Counties Municipal Utility District 3'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.
Wastewater Proximity Note: This service area ranks in the 70th percentile nationally for proximity to wastewater discharge points.
Infrastructure Risk
Detected Contaminants
How Harris-fort Bend Counties Municipal Utility District 3 compares to EPA limits
What This Means For You
Contaminant 2110 at 1 mg/L exceeds the EPA maximum of 0.005 mg/L. Leukemia & blood cancers (known carcinogen). Consider granular activated carbon (GAC) filtration.
Contaminant 2031 at 1 mg/L exceeds the EPA maximum of mg/L.
Contaminant 2040 at 1 mg/L exceeds the EPA maximum of mg/L.
Contaminant 2041 at 1 mg/L exceeds the EPA maximum of mg/L.
Contaminant 2105 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. 7 detections recorded. 1 exceeds federal EPA limits (4 ppt for PFOA/PFOS).
Contaminant 2110 was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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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
Harris-fort Bend Counties Municipal Utility District 3 (EPA ID: TX1013365) is a community water system in Texas that serves approximately 9,297 people from groundwater sources.
This system serves ZIP code 77494 in Katy.
Violation History
Status breakdown for accepted records with record years 2021-2026: 0 resolved, 5 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 |
|---|---|---|---|
| January 1, 2022 | Contaminant 2031 | Non-health-based | Archived |
| January 1, 2022 | Contaminant 2040 | Non-health-based | Archived |
| January 1, 2022 | Contaminant 2041 | Non-health-based | Archived |
| January 1, 2022 | Contaminant 2105 | Non-health-based | Archived |
| January 1, 2022 | Contaminant 2110 | Non-health-based | Archived |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 2031 | Other Violation | 1 | No |
| Contaminant 2040 | Other Violation | 1 | No |
| Contaminant 2041 | Other Violation | 1 | No |
| Contaminant 2105 | Other Violation | 1 | No |
| Contaminant 2110 | Other Violation | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.00234 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.
- 77494 - Katy
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Harris-fort Bend Counties Municipal Utility District 3 (TX1013365) on EPA.gov.
Frequently Asked Questions
Is Harris-fort Bend Counties Municipal Utility District 3 water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Harris-fort Bend Counties Municipal Utility District 3; its 5 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Harris-fort Bend Counties Municipal Utility District 3 serve?
Harris-fort Bend Counties Municipal Utility District 3 serves approximately 9,297 people across 1 ZIP code in Texas.
Where does Harris-fort Bend Counties Municipal Utility District 3 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.). Harris-fort Bend Counties Municipal Utility District 3, TX. https://zipcheckup.com/water-system/tx1013365/
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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
Harris-fort Bend Counties Municipal Utility District 3 (EPA ID: TX1013365) - request the latest Consumer Confidence Report or ask about specific contaminants.