MyCleanWater

Tuolumne, California Water Quality Report

Water quality data for 2 water systems serving 184 people.

100
Excellent
out of 100

Water Source

2
Water Systems
184
People Served
Surface water
Water Source

Detected Contaminants

No contaminant data available for this location.

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Compliance & Violations

Resolved Violations (33)

3D

Apr 1, 2025 — Apr 30, 2025

minor

3D

Apr 1, 2025 — Apr 30, 2025

minor

4B

Dec 1, 2022

minor

4B

Aug 1, 2022

minor

4B

Oct 1, 2021

minor

+ 28 more resolved violations

Frequently Asked Questions

Is Tuolumne tap water safe to drink?

Tuolumne's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.

What contaminants are in Tuolumne tap water?

0 contaminants have been detected in Tuolumne's water supply across 2 water systems. See the full contaminant table above for details.

How can I improve my water quality in Tuolumne?

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