CITY OF WILLIS
Texas - Community Water System - PWSID: TX1700003
System Information
| PWSID | TX1700003 |
| System Name | CITY OF WILLIS |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 06 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 14, 1980 |
| Last Reported | Jun 26, 2026 |
Location & Contact
| State | Texas |
| City | WILLIS |
| ZIP Code | 77378-8680 |
| Address | 501 W MONTGOMERY ST |
| Organization | BROWN, WILLIAM |
| Phone | 936-856-4611 |
Population & Service
| Population Served | 14,133 |
| Service Connections | 4,711 |
Drinking Water Violations (61)
This water system has 61 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb 10, 2026 | - | TT | Yes | No | - | - | - | Resolved | Apr 2, 2026 | - | |
| Feb 10, 2026 | - | TT | Yes | No | - | - | - | Resolved | Apr 2, 2026 | - | |
| Feb 10, 2026 | - | TT | Yes | No | - | - | - | Resolved | Apr 2, 2026 | - | |
| Nov 6, 2025 | - | Other | No | No | - | - | - | Resolved | Feb 2, 2026 | - | |
| Nov 6, 2025 | - | Other | No | No | - | - | - | Resolved | Feb 2, 2026 | - | |
| Sep 13, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Sep 1, 2025 | Sep 30, 2025 | MCL | Yes | No | - | - | - | Resolved | Sep 30, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MCL | Yes | No | - | - | - | Resolved | Sep 30, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MCL | Yes | No | - | - | - | Resolved | Sep 30, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MCL | Yes | No | - | - | - | Resolved | Sep 30, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MCL | Yes | No | - | - | - | Resolved | Sep 30, 2025 | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Resolved | Apr 27, 2026 | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Resolved | Apr 27, 2026 | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Oct 3, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Oct 3, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Oct 3, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Oct 3, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Oct 3, 2025 | - | |
| Jun 28, 2024 | - | MR | No | No | - | - | - | Resolved | Jun 21, 2024 | - | |
| Jun 28, 2024 | - | MR | No | No | - | - | - | Resolved | Jun 21, 2024 | - | |
| Jun 28, 2024 | - | MR | No | No | - | - | - | Resolved | Jun 21, 2024 | - | |
| Jun 28, 2024 | - | MR | No | No | - | - | - | Resolved | Jun 21, 2024 | - | |
| Jun 28, 2024 | - | MR | No | No | - | - | - | Resolved | Jun 21, 2024 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.0002 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.00005 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | - | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.2 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.2 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.07 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.010 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.004 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.5 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.04 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.007 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.006 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.2 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.002 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | - | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.002 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 2 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | - | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2021 | Dec 31, 2023 | MR | No | Yes | - | 0.1 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jun 1, 2003 | - | Other | No | No | - | - | - | Resolved | Jan 20, 2011 | - | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2003 | - | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2003 | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.