Hilo, Hawaii Water Quality Report
Water quality data for 25 water systems serving 118,511 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (1)
52
Oct 1, 2022
Resolved Violations (499)
38
Aug 1, 2024 — Aug 31, 2024
38
Aug 1, 2024 — Aug 31, 2024
3A
Sep 1, 2016 — Sep 30, 2016
3A
Sep 1, 2016 — Sep 30, 2016
3A
Sep 1, 2016 — Sep 30, 2016
+ 494 more resolved violations
Frequently Asked Questions
Is Hilo tap water safe to drink?
Hilo'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 Hilo tap water?
0 contaminants have been detected in Hilo's water supply across 25 water systems. See the full contaminant table above for details.
How can I improve my water quality in Hilo?
Install a water filter rated for the specific contaminants found in Hilo's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Hilo have any water quality violations?
Yes, Hilo currently has 106 active violations. See the violations section above for details.