HARRIS COUNTY MUD 421
PWS ID: TX1013376 · HOUSTON, Texas 77019-2115
Population Served
1,269
Total Violations
0
Health-Based Violations
0
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 423
- County
- Harris
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 0
- Treatment Tech Violations
- 0
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.