Public water system record
West Harris County MUD 4
Serves an area of Harris County, TX · 1,581 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for West Harris County MUD 4 in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- West Harris County MUD 4 draws water from 2 wells.
- Record on file since 2013, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 561 service lines.
Check whether West Harris County MUD 4 serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Active |
Full record since 2013
EPA's records for West Harris County MUD 4 go back to 2013. Before October 19, 2016 they list no health-based violations and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2010 to October 18, 2016 | 0 | 1 |
| 2020s | 0 | 1 |
Where the water comes from
West Harris County MUD 4 draws water from 2 wells. It also buys water from Harris County MUD 147. 1 other public water system has an emergency connection to West Harris County MUD 4.
Buys water from
- Harris County MUD 147 Houston, TX
Annual water quality report
West Harris County MUD 4 must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Texas.
Certified drinking water labs by state EPA guidance for private wells