CITY OF KATY
Texas — Community Water System — PWSID: TX1010017
System Information
| PWSID | TX1010017 |
| System Name | CITY OF KATY |
| 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 | 77492-0617 |
| Address | PO BOX 617 |
| Organization | THIELE, WILLIAM H |
| Phone | 281-391-4800 |
Population & Service
| Population Served | 25,253 |
| Service Connections | 10,525 |
Drinking Water Violations (8)
This water system has 8 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 24, 2025 | — | MR | No | Yes | — | — | — | Resolved | Nov 20, 2025 | — | |
| Jun 24, 2025 | — | MR | No | Yes | — | — | — | Resolved | Nov 20, 2025 | — | |
| Jun 24, 2025 | — | MR | No | Yes | — | — | — | Resolved | Nov 20, 2025 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2019 | — | |
| 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.