Public water system record
El Tanque WSC
Serves an area of Starr County, TX that includes Sammy Martinez, El Brazil, El Rancho Vela and 3 more places · 3,000 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for El Tanque WSC 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
- El Tanque WSC buys its water from City of Rio Grande City.
- Most recent enforcement action: boil water order by Texas, May 1991.
- Record on file since 1991, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 996 service lines.
Check whether El Tanque 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 |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Full record since 1991
EPA's records for El Tanque WSC go back to 1991. Before October 19, 2016 they list 1 health-based violation (1 archived by EPA without a recorded fix) and 8 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 4 |
| 2010 to October 18, 2016 | 0 | 4 |
| 2020s | 0 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform (acute), began May 1991, Archived.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform (acute)
Contaminant limit exceeded
|
May 1, 1991 | Archived |
Enforcement actions
Texas regulators issued 1 boil water order to El Tanque WSC in 1991. The most recent was a boil water order in May 1991.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 31, 1991 | Texas | Boil water order | 1 violation |
Where the water comes from
El Tanque WSC buys its water from City of Rio Grande City. It lists no wells or intakes of its own.
Buys water from
- City of Rio Grande City Rio Grande, TX
Annual water quality report
El Tanque 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.
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