Public water system record
Northwest Harris County MUD 23
Serves an area of Harris County, TX · 4,470 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for Northwest Harris County MUD 23 in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 2
Key facts
- Northwest Harris County MUD 23 draws water from 1 well.
- Record on file since 2006, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 1,585 service lines.
Check whether Northwest Harris County MUD 23 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 |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2022 | Resolved |
Full record since 2006
EPA's records for Northwest Harris County MUD 23 go back to 2006. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 1 | 2 |
| 2010 to October 18, 2016 | 0 | 1 |
| 2020s | 0 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began September 2008, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2008 | Resolved |
Where the water comes from
Northwest Harris County MUD 23 draws water from 1 well. It also buys water from Northwest Harris County MUD 22 and North Harris County Regional Water Autho.
Buys water from
- Northwest Harris County MUD 22 Houston, TX
- North Harris County Regional Water Autho Houston, TX
Annual water quality report
Northwest Harris County MUD 23 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