Harris County Wcid 109
EPA ID: TX1010359 · 10,134 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Harris County Wcid 109 (TX1010359): 14 EPA violations in the last five years. Even though Harris County Wcid 109 accumulated 14 violations over five years, all have been formally resolved - the provider currently meets EPA standards for 10,134 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Harris County Wcid 109 Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Harris County Wcid 109 serves a community with a median household income of $83,545 and an estimated 38,315 residents across its service area. Approximately 53% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
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 Wcid 109'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.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points. Surface water sources near wastewater outfalls may face additional treatment challenges.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Detected Contaminants
How Harris County Wcid 109 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.
Selenium at 1 mg/L exceeds the EPA maximum of 0.05 mg/L. Hair & nail loss, nerve damage, liver & kidney damage. Consider reverse osmosis filtration.
Contaminant 2031 at 1 mg/L exceeds the EPA maximum of mg/L.
Contaminant 2036 at 1 mg/L exceeds the EPA maximum of mg/L.
Contaminant 2040 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.
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 County Wcid 109 (EPA ID: TX1010359) is a community water system in Texas that serves approximately 10,134 people from surface water sources.
This system serves ZIP code 77066 in Houston.
Violation History
Status breakdown for accepted records with record years 2021-2026: 0 resolved, 14 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, 2021 | Contaminant 2036 | Non-health-based | Archived |
| January 1, 2021 | Contaminant 2043 | Non-health-based | Archived |
| January 1, 2021 | Contaminant 2044 | Non-health-based | Archived |
| January 1, 2021 | Contaminant 2046 | Non-health-based | Archived |
| January 1, 2021 | Contaminant 2047 | Non-health-based | Archived |
| January 1, 2021 | Contaminant 2031 | Non-health-based | Archived |
| January 1, 2021 | Contaminant 2040 | Non-health-based | Archived |
| January 1, 2021 | Contaminant 2041 | Non-health-based | Archived |
| January 1, 2021 | Contaminant 2105 | Non-health-based | Archived |
| January 1, 2021 | Contaminant 2110 | Non-health-based | Archived |
| January 1, 2021 | Contaminant 2931 | Non-health-based | Archived |
| January 1, 2021 | Contaminant 2946 | Non-health-based | Archived |
| January 1, 2021 | Nickel | Non-health-based | Archived |
| January 1, 2021 | Selenium | Non-health-based | Archived |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Selenium | Inorganic | 1 | No |
| Nickel | Inorganic | 1 | No |
| Contaminant 2031 | Other Violation | 1 | No |
| Contaminant 2036 | Other Violation | 1 | No |
| Contaminant 2040 | Other Violation | 1 | No |
| Contaminant 2041 | Other Violation | 1 | No |
| Contaminant 2043 | Other Violation | 1 | No |
| Contaminant 2044 | Other Violation | 1 | No |
| Contaminant 2046 | Other Violation | 1 | No |
| Contaminant 2047 | Other Violation | 1 | No |
| Contaminant 2105 | Other Violation | 1 | No |
| Contaminant 2110 | Other Violation | 1 | No |
| Contaminant 2931 | Other Violation | 1 | No |
| Contaminant 2946 | 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 |
|---|---|---|
| 0.00236 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.
- 77066 - Houston
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Harris County Wcid 109 (TX1010359) on EPA.gov.
Frequently Asked Questions
Is Harris County Wcid 109 water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Harris County Wcid 109; its 14 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Harris County Wcid 109 serve?
Harris County Wcid 109 serves approximately 10,134 people across 1 ZIP code in Texas.
Where does Harris County Wcid 109 get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected below 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 →
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Harris County Wcid 109 (TX): 14 EPA Violations. https://zipcheckup.com/water-system/tx1010359/
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author = {{ZipCheckup}},
title = {{Harris County Wcid 109 (TX): 14 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/tx1010359/}
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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 County Wcid 109 (EPA ID: TX1010359) - request the latest Consumer Confidence Report or ask about specific contaminants.