Public water system record
Harris County MUD 23
Serves an area of Harris County, TX · 3,170 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Harris County MUD 23 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
- Harris County MUD 23 draws water from 2 wells.
- Record on file since 1992, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 1,193 service lines.
Check whether 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 |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2025 | Active |
Full record since 1992
EPA's records for Harris County MUD 23 go back to 1992. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 22 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 1 |
| 2000s | 0 | 3 |
| 2010 to October 18, 2016 | 3 | 18 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Gross Alpha, Excl. Radon and U, began April 2013, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Apr 1, 2013 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
Jan 1, 2013 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Oct 1, 2012 | Resolved |
Where the water comes from
Harris County MUD 23 draws water from 2 wells. It also buys water from City of Houston. 1 other community water system buys water from Harris County MUD 23.
Buys water from
- City of Houston Houston, TX
Community systems that buy water from it
- Harris County MUD 220 Houston, TX
Annual water quality report
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