MyCleanWater

Pasadena, California Water Quality Report

Water quality data for 7 water systems serving 192,323 people.

100
Excellent
out of 100

Water Source

7
Water Systems
192K
People Served
Surface water, Ground water
Water Source

Detected Contaminants

ContaminantDetected LevelEPA Limit (MCL)Health Guideline% of LimitStatus
lithium64.2 No federal limit10.0 ug/L(EPA/USGS HBSL)
642%
Above guideline

Get a Free Water Quality Consultation

Connect with a certified water treatment professional in Pasadena, California.

No spam. We connect you directly with local water treatment professionals.

Get Water Quality Alerts

Be the first to know when water quality changes in Pasadena.

Free alerts. Unsubscribe anytime. We never share your information.

Compliance & Violations

Resolved Violations (500)

3A

Aug 1, 2025 — Aug 31, 2025

minor

01

Apr 1, 2025 — Jun 30, 2025

critical

01

Jan 1, 2025 — Mar 31, 2025

critical

01

Oct 1, 2024 — Dec 31, 2024

critical

01

Jul 1, 2024 — Sep 30, 2024

critical

+ 495 more resolved violations

Frequently Asked Questions

Is Pasadena tap water safe to drink?

Pasadena'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 Pasadena tap water?

1 contaminants have been detected in Pasadena's water supply across 7 water systems. See the full contaminant table above for details.

How can I improve my water quality in Pasadena?

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

Does Pasadena have any water quality violations?

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