MyCleanWater

Brentwood, California Water Quality Report

Water quality data for 8 water systems serving 65,045 people.

45
Poor
out of 100

Water Source

8
Water Systems
65K
People Served
Surface water, Ground water
Water Source

Detected Contaminants

ContaminantDetected LevelEPA Limit (MCL)Health Guideline% of LimitStatus
lithium102.0 No federal limit10.0 ug/L(EPA/USGS HBSL)
1020%
Above guideline

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Compliance & Violations

Active Violations (31)

2E

Oct 17, 2024

critical

2E

Oct 17, 2024

critical

4G

Oct 17, 2024

minor

4G

Oct 17, 2024

minor

2E

Oct 17, 2024

critical

4G

Oct 17, 2024

minor

52

Oct 1, 2023

moderate

52

Oct 1, 2023

moderate

52

Oct 1, 2021

moderate

71

Jul 1, 2017

minor

71

Jul 1, 2017

minor

71

Jul 1, 2016

minor

71

Jul 1, 2016

minor

51

Apr 1, 2001

moderate

51

Apr 1, 2001

moderate

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Resolved Violations (288)

02

Apr 1, 2025 — Jun 30, 2025

critical

02

Jan 1, 2025 — Mar 31, 2025

critical

02

Oct 1, 2024 — Dec 31, 2024

critical

03

Jul 1, 2024 — Sep 30, 2024

moderate

02

Apr 1, 2024 — Jun 30, 2024

critical

+ 283 more resolved violations

Frequently Asked Questions

Is Brentwood tap water safe to drink?

Brentwood's water meets all EPA maximum contaminant levels. However, 1 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.

What contaminants are in Brentwood tap water?

1 contaminants have been detected in Brentwood's water supply across 8 water systems. See the full contaminant table above for details.

How can I improve my water quality in Brentwood?

Install a water filter rated for the specific contaminants found in Brentwood's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.

Does Brentwood have any water quality violations?

Yes, Brentwood currently has 31 active violations. See the violations section above for details.