MyCleanWater

Preston, Idaho Water Quality Report

Water quality data for 11 water systems serving 12,992 people.

45
Poor
out of 100

Water Source

11
Water Systems
13K
People Served
Ground water, Surface water
Water Source

Detected Contaminants

No contaminant data available for this location.

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Compliance & Violations

Active Violations (39)

75

Aug 16, 2025

minor

4H

Jul 2, 2025

minor

4H

Jul 2, 2025

minor

4H

Jul 2, 2025

minor

4H

Jul 2, 2025

minor

4H

Jul 2, 2025

minor

4H

Jul 2, 2025

minor

4H

Jul 2, 2025

minor

4H

Jul 2, 2025

minor

52

Jul 1, 2025

moderate

52

Jul 1, 2025

moderate

75

May 27, 2025

minor

75

May 27, 2025

minor

75

May 27, 2025

minor

75

May 27, 2025

minor

75

May 27, 2025

minor

75

May 27, 2025

minor

75

May 27, 2025

minor

75

May 27, 2025

minor

75

May 27, 2025

minor

75

May 27, 2025

minor

2C

Feb 21, 2025

critical

2C

Feb 21, 2025

critical

2C

Feb 21, 2025

critical

2C

Feb 21, 2025

critical

2C

Feb 21, 2025

critical

2C

Feb 21, 2025

critical

2C

Feb 21, 2025

critical

2C

Feb 21, 2025

critical

2C

Feb 21, 2025

critical

2C

Feb 21, 2025

critical

75

Jan 3, 2025

minor

75

Jan 3, 2025

minor

75

Jan 3, 2025

minor

75

Jan 3, 2025

minor

56

Jan 1, 2025

moderate

56

Jan 1, 2025

moderate

66

Dec 30, 2024

moderate

66

Dec 30, 2024

moderate

Resolved Violations (461)

19

Sep 1, 2025 — Sep 30, 2025

moderate

31

Sep 1, 2025 — Sep 30, 2025

moderate

31

Sep 1, 2025 — Sep 30, 2025

moderate

31

Aug 1, 2025 — Aug 31, 2025

moderate

31

Aug 1, 2025 — Aug 31, 2025

moderate

+ 456 more resolved violations

Frequently Asked Questions

Is Preston tap water safe to drink?

Preston'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 Preston tap water?

0 contaminants have been detected in Preston's water supply across 11 water systems. See the full contaminant table above for details.

How can I improve my water quality in Preston?

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

Does Preston have any water quality violations?

Yes, Preston currently has 146 active violations. See the violations section above for details.