Public water system record
Cedar Oak Mesa WSC
Serves an area of Hays County, TX · 497 people served
Federal records show no health-based violations and 11 monitoring/reporting issues for Cedar Oak Mesa WSC 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
- 11
Key facts
- Cedar Oak Mesa WSC draws water from 2 wells.
- Record on file since 2012, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 205 service lines.
Check whether Cedar Oak Mesa WSC 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
|
Sep 29, 2025 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Public Notice
OTHER
|
Oct 1, 2024 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Sep 29, 2024 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2023 | Resolved |
|
Public Notice
OTHER
|
Jan 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Nov 1, 2016 | Resolved |
|
Public Notice
OTHER
|
Jul 12, 2012 | Resolved |
Full record since 2012
EPA's records for Cedar Oak Mesa WSC go back to 2012. 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 |
|---|---|---|
| 2010 to October 18, 2016 | 1 | 3 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 9 |
Most recent health-based violation before October 19, 2016: Total Coliform, began May 2012, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2012 | Resolved |
Where the water comes from
Cedar Oak Mesa WSC draws water from 2 wells.
Annual water quality report
Cedar Oak Mesa WSC 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.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Cedar Oak Mesa WSC for a copy.
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