TapSafetyReport
F0/100

CITY OF DOS PALOS — Water Quality Report 2026

Serving 7,452 people · California

Water Source
Surface Water
County
—
System ID
CA2410002
Violations
46

Contaminant Test Results

EPA Violation History

10

Violations (last 5yr)

9

Unresolved

9

Health-Related

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2025 – June 30, 2025Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2025 – March 31, 2025Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2024 – June 30, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2023 – June 30, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2023 – March 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 3Resolved

Failed to issue ongoing public notification

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

When: October 1, 2022Rule: Ground Water RuleEnforcement: Formal — state order issued
TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2021 – September 30, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov

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 DOS PALOS

Is CITY OF DOS PALOS water safe to drink?

CITY OF DOS PALOS water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 46 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has CITY OF DOS PALOS detected?

31 contaminants were tested in CITY OF DOS PALOS's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does CITY OF DOS PALOS have any EPA violations?

Yes, CITY OF DOS PALOS has 46 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, MR, TT. 43 are health-based violations.

How many people does CITY OF DOS PALOS serve?

CITY OF DOS PALOS serves approximately 7,452 people, California. The system provides water to 1 community: Dos Palos.

What type of water does CITY OF DOS PALOS provide?

CITY OF DOS PALOS 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 CA2410002.

How does CITY OF DOS PALOS compare to other utilities in California?

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

Cities Served

Dos Palos