What's in MAKAWAO's water?
MAKAWAO has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 29,868, over 6,675 connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, MAKAWAO ranks 110th by violation burden (99th percentile) - 101 violations total, 83 health-baseds.
How MAKAWAO compares within HI
Among the 47 HI systems in this dataset, the average is 8.4 health-based violations - MAKAWAO's 83 is above that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for MAKAWAO is from 2020-01-05 (health-based: 2020-01-05). Last reported to EPA: 06/03/2026.
What kind of problem, specifically
MAKAWAO's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR); Surface Water Treatment Rule
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
This is what MAKAWAO reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. This record - 83 health-based violations on file for MAKAWAO - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.