F0/100

CITY OF SANTA ROSA — Water Quality Report 2026

Serving 2,883 people · Texas

Water Source

Surface Water

County

—

System ID

TX0310009

Violations

100

Contaminant Test Results

EPA Violation History

Violations (last 5yr)

Unresolved

Health-Related

TIER 3Unresolved

Failed to conduct Level 2 Assessment

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

When: September 2, 2025Rule: Stage 2 DBPRVerify on EPA.gov

TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: July 12, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Failed to conduct Level 2 Assessment

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

When: June 17, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: May 1, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2025 – June 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Monitoring / Reporting Violation

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

When: December 30, 2024 – May 30, 2025Rule: Ground Water RuleEnforcement: 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

Surface water treatment technique failure

When: July 1, 2022 – July 19, 2023Enforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: January 30, 2022 – June 1, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: January 30, 2022 – June 1, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: September 18, 2021 – June 1, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: September 18, 2021 – June 1, 2025Rule: Ground Water 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 SANTA ROSA

Is CITY OF SANTA ROSA water safe to drink?

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

What contaminants has CITY OF SANTA ROSA detected?

1 contaminants were tested in CITY OF SANTA ROSA's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does CITY OF SANTA ROSA have any EPA violations?

Yes, CITY OF SANTA ROSA has 100 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, MCL. 35 are health-based violations.

How many people does CITY OF SANTA ROSA serve?

CITY OF SANTA ROSA serves approximately 2,883 people, Texas.

What type of water does CITY OF SANTA ROSA provide?

CITY OF SANTA ROSA 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 TX0310009.

How does CITY OF SANTA ROSA compare to other utilities in Texas?

CITY OF SANTA ROSA 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.