B64/100

BARTON FLATS WATER SYSTEM — Water Quality Report 2026

Serving 1,070 people · California

Water Source
Surface Water
County
System ID
CA3601048
Violations
13

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.003 mg/L0.015 mg/LAbove Goal

EPA Violation History

5

Violations (last 5yr)

2

Unresolved

1

Health-Related

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 RuleVerify on EPA.gov
TIER 2Unresolved

Treatment technique violation

When: October 17, 2024Rule: Ground Water RuleVerify on EPA.gov
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, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2022 – December 31, 2022Enforcement: Formal — state order issued
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, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued

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 BARTON FLATS WATER SYSTEM

Is BARTON FLATS WATER SYSTEM water safe to drink?

BARTON FLATS WATER SYSTEM water receives a grade of B (64/100), which is considered good. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.

What contaminants has BARTON FLATS WATER SYSTEM detected?

1 contaminants were tested in BARTON FLATS WATER SYSTEM's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does BARTON FLATS WATER SYSTEM have any EPA violations?

Yes, BARTON FLATS WATER SYSTEM has 13 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MR. 5 are health-based violations.

How many people does BARTON FLATS WATER SYSTEM serve?

BARTON FLATS WATER SYSTEM serves approximately 1,070 people, California.

What type of water does BARTON FLATS WATER SYSTEM provide?

BARTON FLATS WATER SYSTEM 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 CA3601048.

How does BARTON FLATS WATER SYSTEM compare to other utilities in California?

BARTON FLATS WATER SYSTEM scores 64/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our California state page for a full comparison of water systems.