Harris County Municipal Utility District 365
EPA ID: TX1013009 · 4,461 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Harris County Municipal Utility District 365 (TX1013009): 1 unresolved EPA violation on record. Harris County Municipal Utility District 365 shows 1 open EPA violation in current federal records for approximately 4,461 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Harris County Municipal Utility District 365 Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Harris County Municipal Utility District 365 serves a community with a median household income of $117,931 and an estimated 95,938 residents across its service area.
Environmental Justice Note: 51% 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?
Harris County Municipal Utility District 365'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 60th percentile nationally for proximity to wastewater discharge points.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Detected Contaminants
How Harris County Municipal Utility District 365 compares to EPA limits
What This Means For You
Total Coliform at 1 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. 5 detections recorded.
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
Harris County Municipal Utility District 365 (EPA ID: TX1013009) is a community water system in Texas that serves approximately 4,461 people from groundwater sources.
This system serves ZIP code 77429 in Cypress.
Violation History
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 0 archived, 0 addressed, and 1 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 |
|---|---|---|---|
| February 3, 2025 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| December 2, 2023 | 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 |
|---|---|---|---|
| Total Coliform | Microbiological | 1 | No |
| Lead and Copper 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.
- 77429 - Cypress
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Harris County Municipal Utility District 365 (TX1013009) on EPA.gov.
Frequently Asked Questions
Is Harris County Municipal Utility District 365 water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Harris County Municipal Utility District 365 serve?
Harris County Municipal Utility District 365 serves approximately 4,461 people across 1 ZIP code in Texas.
Where does Harris County Municipal Utility District 365 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 County Municipal Utility District 365, TX. https://zipcheckup.com/water-system/tx1013009/
@misc{zipcheckup-water-system-tx1013009,
author = {{ZipCheckup}},
title = {{Harris County Municipal Utility District 365, TX}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/tx1013009/}
}
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 County Municipal Utility District 365 (EPA ID: TX1013009) - request the latest Consumer Confidence Report or ask about specific contaminants.