Public water system record
East Rio Hondo WSC
Serves an area of Cameron County, TX that includes Brownsville, La Tina Ranch, Laureles and 8 more places · 24,756 people served
Federal records show 1 health-based violation and no monitoring/reporting issues for East Rio Hondo WSC in the last ten years. The most serious issue in this window was a resolved Long Term 2 Enhanced Surface Water Treatment Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- East Rio Hondo WSC draws water from 2 wells and 1 surface water intake.
- Record on file since 1992, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 8,962 service lines.
Check whether East Rio Hondo 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.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Nov 1, 2016 | Resolved | No |
Full record since 1992
EPA's records for East Rio Hondo WSC go back to 1992. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 4 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 1 |
| 2000s | 0 | 2 |
| 2010 to October 18, 2016 | 0 | 1 |
| October 19, 2016 to 2019 | 1 | 0 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 1997, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 1997 | Resolved |
What the violations mean
Long Term 2 Enhanced Surface Water Treatment Rule
1 incidentThe system failed required surface water treatment or filtration standards
Untreated or inadequately treated surface water can contain bacteria and viruses
Where the water comes from
East Rio Hondo WSC draws water from 2 wells and 1 surface water intake. It also buys water from North Cameron Regional Water Treatment F and Harlingen Water Works System. It also has emergency connections to Olmito WSC and City of Los Fresnos. 3 other community water systems and 1 smaller public system such as schools, businesses or campgrounds buy water from East Rio Hondo WSC.
Buys water from
- North Cameron Regional Water Treatment F Rio Hondo, TX
- Harlingen Water Works System Harlingen, TX
Emergency or part-time connections to
- Olmito WSC Olmito, TX
- City of Los Fresnos Los Fresnos, TX
Community systems that buy water from it
- East Rio Hondo WSC Arroyo City Rio Hondo, TX
- Military Hwy WSC Del Mar Heights Progreso, TX
- Town of Indian Lake Los Fresnos, TX
Annual water quality report
East Rio Hondo 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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