MyCleanWater

Yellowstone National Park, Wyoming Water Quality Report

Water quality data for 1 water system serving 2,600 people.

100
Excellent
out of 100

Water Source

1
Water System
3K
People Served
Surface water
Water Source

Detected Contaminants

No contaminant data available for this location.

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Compliance & Violations

Resolved Violations (14)

36

Aug 1, 2023 — Aug 31, 2023

moderate

36

Aug 1, 2023 — Aug 31, 2023

moderate

27

Jun 1, 2017 — May 31, 2018

moderate

27

Jun 1, 2017 — May 31, 2018

moderate

24

Sep 1, 2013 — Sep 30, 2013

moderate

+ 9 more resolved violations

Frequently Asked Questions

Is Yellowstone National Park tap water safe to drink?

Yellowstone National Park'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 Yellowstone National Park tap water?

0 contaminants have been detected in Yellowstone National Park's water supply across 1 water system. See the full contaminant table above for details.

How can I improve my water quality in Yellowstone National Park?

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