F0/100

CITY OF RIO HONDO — Water Quality Report 2026

Serving 2,640 people · Texas

Water Source

Surface Water

County

—

System ID

TX0310006

Violations

210

Contaminant Test Results

EPA Violation History

Violations (last 5yr)

Unresolved

Health-Related

TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: August 1, 2025 – August 31, 2025Rule: Stage 1 DBPRVerify on EPA.gov

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: May 1, 2025 – June 3, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: March 3, 2025 – March 27, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: March 1, 2025 – March 31, 2025Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: February 14, 2025 – April 4, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: February 1, 2025 – February 28, 2025Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 1 — URGENTResolved

Violation related to Nitrate

When: January 1, 2025 – January 31, 2025Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2025 – January 31, 2025Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 1 — URGENTResolved

Violation related to Nitrate

When: January 1, 2025 – January 31, 2025Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2025 – January 31, 2025Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 3Unresolved

Reporting violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 17, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 2Unresolved

Treatment technique violation

When: October 17, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: November 23, 2023 – April 4, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: November 19, 2023 – April 10, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: December 31, 2022 – April 4, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 1 — URGENTResolved

Violation related to Nitrate

When: November 1, 2022 – November 30, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: September 1, 2022 – September 30, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2022 – September 30, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: May 31, 2022 – April 4, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 1 — URGENTResolved

Violation related to Nitrate

When: April 1, 2022 – April 30, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: March 31, 2022 – April 29, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: March 3, 2022 – April 29, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 1 — URGENTResolved

Violation related to Nitrate

When: March 1, 2022 – March 31, 2022Rule: Surface Water Treatment RuleEnforcement: Formal — state order issued

TIER 1 — URGENTResolved

Violation related to Nitrate

When: February 1, 2022 – February 28, 2022Rule: Surface Water Treatment RuleEnforcement: Formal — state order issued

TIER 1 — URGENTResolved

Violation related to Nitrate

When: January 1, 2022 – January 31, 2022Rule: Surface Water Treatment RuleEnforcement: Formal — state order issued

TIER 1 — URGENTResolved

Violation related to Nitrate

When: August 1, 2021 – August 31, 2021Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 1 — URGENTResolved

Violation related to Nitrate

When: July 1, 2021 – July 31, 2021Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Frequently Asked Questions About CITY OF RIO HONDO

Is CITY OF RIO HONDO water safe to drink?

CITY OF RIO HONDO water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 210 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has CITY OF RIO HONDO detected?

8 contaminants were tested in CITY OF RIO HONDO's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does CITY OF RIO HONDO have any EPA violations?

Yes, CITY OF RIO HONDO has 210 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, TT. 66 are health-based violations.

How many people does CITY OF RIO HONDO serve?

CITY OF RIO HONDO serves approximately 2,640 people, Texas.

What type of water does CITY OF RIO HONDO provide?

CITY OF RIO HONDO sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is TX0310006.

How does CITY OF RIO HONDO compare to other utilities in Texas?

CITY OF RIO HONDO scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Texas state page for a full comparison of water systems.