HARRIS COUNTY MUD 189
Texas - Community Water System - PWSID: TX1011809
System Information
| PWSID | TX1011809 |
| System Name | HARRIS COUNTY MUD 189 |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 06 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Jan 19, 1983 |
| Last Reported | Mar 31, 2026 |
Location & Contact
| State | Texas |
| City | HOUSTON |
| ZIP Code | 77010-3095 |
| Address | 1301 MCKINNEY ST STE 5100 |
| Organization | CONE, DERWOOD |
| Phone | 713-651-5151 |
Population & Service
| Population Served | 6,906 |
| Service Connections | 2,302 |
Drinking Water Violations (77)
This water system has 77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.003 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.003 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.004 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.0002 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.0002 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.04 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.002 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.4 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.001 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.002 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | - | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.006 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.0002 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.0004 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.001 mg/L | - | Archived | Dec 31, 2021 | - | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Dec 31, 2021 | - | |
| Oct 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Oct 3, 2016 | - | |
| Oct 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Oct 3, 2016 | - | |
| Oct 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Oct 3, 2016 | - | |
| Oct 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Oct 3, 2016 | - | |
| Feb 13, 2015 | - | Other | No | No | - | - | - | Resolved | Dec 29, 2015 | - | |
| Feb 13, 2015 | - | Other | No | No | - | - | - | Resolved | Dec 29, 2015 | - | |
| Oct 1, 2014 | - | MR | No | No | - | TT | - | Resolved | Oct 2, 2015 | - | |
| Oct 1, 2014 | - | MR | No | No | - | TT | - | Resolved | Oct 2, 2015 | - | |
| Oct 1, 2014 | - | MR | No | No | - | TT | - | Resolved | Oct 2, 2015 | - | |
| Sep 26, 2014 | - | Other | No | No | - | - | - | Resolved | Sep 24, 2014 | - | |
| Sep 26, 2014 | - | Other | No | No | - | - | - | Resolved | Sep 24, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Jun 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Jun 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Jun 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 16 PCI/L | 15 pCi/L | 15 | Resolved | Jun 30, 2014 | - | |
| Oct 1, 2013 | - | MR | No | No | - | TT | - | Resolved | Oct 2, 2015 | - | |
| Oct 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Oct 2, 2015 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 30 ug/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 30 ug/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Dec 31, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | - | 30 ug/L | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | - | 30 ug/L | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Sep 30, 2010 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MCL | Yes | No | 17 PCI/L | 15 pCi/L | - | Resolved | Jun 30, 2008 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MCL | Yes | No | 17 PCI/L | 15 pCi/L | - | Resolved | Jun 30, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | 17 PCI/L | 15 pCi/L | - | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | 17 PCI/L | 15 pCi/L | - | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | 17 PCI/L | 15 pCi/L | - | Resolved | Mar 31, 2008 | - |
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.