HARRIS COUNTY MUD 23
Texas — Community Water System — PWSID: TX1010649
System Information
| PWSID | TX1010649 |
| System Name | HARRIS COUNTY MUD 23 |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 06 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Mar 14, 1980 |
| Last Reported | Mar 31, 2026 |
Location & Contact
| State | Texas |
| City | HOUSTON |
| ZIP Code | 77040-3710 |
| Address | 7342 WOODOAK DR |
| Organization | ROSS, WILLIAM |
| Phone | 281-350-0895 |
Population & Service
| Population Served | 3,170 |
| Service Connections | 1,641 |
Drinking Water Violations (38)
This water system has 38 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 30, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Dec 30, 2013 | — | MR | No | No | — | TT | — | Resolved | Aug 31, 2016 | — | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Jun 30, 2013 | — | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Jun 30, 2013 | — | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Jun 30, 2013 | — | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Jun 30, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MCL | Yes | No | 18 PCI/L | 15 pCi/L | 15 | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MCL | Yes | No | 18 PCI/L | 15 pCi/L | 15 | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MCL | Yes | No | 18 PCI/L | 15 pCi/L | 15 | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MCL | Yes | No | 18 PCI/L | 15 pCi/L | 15 | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MCL | Yes | No | 18 PCI/L | 15 pCi/L | 15 | Resolved | Mar 31, 2013 | — | |
| Oct 1, 2012 | Dec 31, 2012 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Dec 31, 2012 | — | |
| Oct 1, 2012 | Dec 31, 2012 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Dec 31, 2012 | — | |
| Oct 1, 2012 | Dec 31, 2012 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Dec 31, 2012 | — | |
| Oct 1, 2012 | Dec 31, 2012 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Dec 31, 2012 | — | |
| Oct 1, 2012 | Dec 31, 2012 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Dec 31, 2012 | — | |
| Jul 1, 2012 | — | Other | No | No | — | — | — | Resolved | Jun 28, 2013 | — | |
| Jul 1, 2012 | — | Other | No | No | — | — | — | Resolved | Jun 28, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.0004 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.4 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jul 1, 2009 | Sep 30, 2009 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Sep 30, 2009 | — | |
| Jul 1, 2009 | Sep 30, 2009 | MR | No | Yes | — | 30 ug/L | — | Resolved | Sep 30, 2009 | — | |
| Jul 1, 2009 | Sep 30, 2009 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Sep 30, 2009 | — | |
| Jul 1, 1992 | Jun 30, 1993 | MR | No | No | — | TT | — | Resolved | Jun 30, 1993 | — |
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.