MASON CREEK UTILITY DISTRICT
Texas - Community Water System - PWSID: TX1010379
System Information
| PWSID | TX1010379 |
| System Name | MASON CREEK UTILITY DISTRICT |
| 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 | Mar 14, 1980 |
| Last Reported | Mar 31, 2026 |
Location & Contact
| State | Texas |
| City | KATY |
| ZIP Code | 77450-2022 |
| Address | 847 DOMINION DR |
| Organization | CONNOLLY, BRIAN |
| Phone | 281-578-7272 |
Population & Service
| Population Served | 8,900 |
| Service Connections | 2,602 |
Drinking Water Violations (66)
This water system has 66 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, 2019 | - | MR | No | No | - | TT | - | Resolved | Mar 10, 2020 | - | |
| Dec 30, 2019 | - | MR | No | No | - | TT | - | Resolved | Mar 10, 2020 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Feb 8, 2016 | - | Other | No | No | - | - | - | Resolved | Mar 17, 2016 | - | |
| Feb 8, 2016 | - | Other | No | No | - | - | - | Resolved | Mar 17, 2016 | - | |
| Oct 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Oct 21, 2016 | - | |
| Oct 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Oct 21, 2016 | - | |
| Oct 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Oct 21, 2016 | - | |
| Oct 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Oct 21, 2016 | - | |
| Feb 12, 2014 | - | Other | No | No | - | - | - | Resolved | Jun 27, 2014 | - | |
| Feb 12, 2014 | - | Other | No | No | - | - | - | Resolved | Jun 27, 2014 | - | |
| Dec 30, 2013 | - | MR | No | No | - | TT | - | Resolved | Jun 24, 2014 | - | |
| Oct 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Oct 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Oct 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Oct 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | No | - | 4.0 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | No | - | 4.0 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | No | - | 4.0 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | No | - | 4.0 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | No | - | 4.0 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | No | - | 4.0 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | No | - | 4.0 mg/L | - | Resolved | Mar 31, 2006 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | No | - | 4.0 mg/L | - | Resolved | Mar 31, 2006 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | No | - | 4.0 mg/L | - | Resolved | Mar 31, 2006 | - | |
| Oct 1, 2005 | Dec 31, 2005 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2005 | - | |
| Oct 1, 2005 | Dec 31, 2005 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2005 | - | |
| Oct 1, 2005 | Dec 31, 2005 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | No | - | 4.0 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | No | - | 4.0 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | No | - | 4.0 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Jan 1, 2005 | Mar 31, 2005 | MR | No | No | - | 4.0 mg/L | - | Resolved | Mar 31, 2005 | - | |
| Jan 1, 2005 | Mar 31, 2005 | MR | No | No | - | 4.0 mg/L | - | Resolved | Mar 31, 2005 | - |
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.