RIO GRANDE CITY, TX · Starr County
RIO WSC Water System
Consumer Confidence Report status
RIO WSC must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show 1 item for RIO WSC that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Texas’s official records. Always confirm current status with Texas before making decisions based on this information.
System facts
- System ID (PWSID)
- TX2140016
- System type
- Community Water System
- Population served
- 6,939
- Service connections
- 2,313
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
RIO WSC is one of 817 community water systems in Texas in the 3,301 to 10,000 people size category, serving 6,939 people from surface water.
As of August 1, 2026, its federal record holds 6 entries between 2008 and 2025, of which 1 remains open; none are health-based.
Of the 6, 5 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 1 Disinfectants and Disinfection Byproducts Rule, the Surface Water Treatment Rules, and the Public Notice Rule and Revised PN Rule.
Violation history
Monitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
November 1, 2025 – November 30, 2025
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
October 1, 2021
UnaddressedLead Consumer Notice
—Lead and Copper Rule
December 30, 2014 – December 5, 2019
ResolvedMonitoring and Reporting (DBP)
—Chlorine
April 1, 2012 – June 30, 2012
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2011 – December 31, 2011
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2008 – December 31, 2008
Resolved
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| November 1, 2025 – November 30, 2025 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| October 1, 2021 | Public Notification Violation for NPDWR Violation | Public Notice | — | Unaddressed |
| December 30, 2014 – December 5, 2019 | Lead Consumer Notice | Lead and Copper Rule | — | Resolved |
| April 1, 2012 – June 30, 2012 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| October 1, 2011 – December 31, 2011 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| October 1, 2008 – December 31, 2008 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet
Enforcement actions
- January 1, 2026State Compliance achieved2 linked violations
- May 23, 2025State Public Notification received4 linked violations
- April 22, 2025State Compliance achieved3 linked violations
- April 14, 2025State Violation/Reminder Notice4 linked violations
- April 14, 2025State Public Notification requested3 linked violations
- October 19, 2023State Compliance achieved5 linked violations
- October 19, 2023State Compliance achieved7 linked violations
- May 13, 2022State Public Notification received4 linked violations
- March 29, 2022State Compliance achieved7 linked violations
- August 31, 2020State Violation/Reminder Notice7 linked violations
- July 3, 2019State Compliance achieved10 linked violations
- April 13, 2018State Compliance achieved25 linked violations
- February 16, 2018State Public Notification requested9 linked violations
- January 31, 2018State Public Notification requested13 linked violations
- December 9, 2013State Administrative/Compliance Order with penalty issued14 linked violations
- November 14, 2013State Public Notification requested9 linked violations
- August 1, 2013State Compliance achieved4 linked violations
- June 12, 2013State Formal Notice of Violation issued10 linked violations
- March 27, 2009State Violation/Reminder Notice1 linked violation
- May 1, 1984State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- December 1, 1983State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- July 1, 1982State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
Common questions
Is RIO WSC required to publish a Consumer Confidence Report?
- Yes. RIO WSC is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is RIO WSC’s next Consumer Confidence Report due?
- RIO WSC’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does RIO WSC have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 1 item for RIO WSC that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
GUERRA, OSCAR
956-487-2085
RIO GRANDE CITY, TX 78582-6229