What's in RAINIER WATER DEPARTMENT's water?

RAINIER WATER DEPARTMENT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 2,758 people through 730 service connections.

RAINIER WATER DEPARTMENT's record against the rest of the country

RAINIER WATER DEPARTMENT has 66 violations on record in total, 1 of them health-based - ranking it 7,358th of 12,903 systems by violation count, the 43th percentile nationally.

Against the WA average

RAINIER WATER DEPARTMENT's 1 health-based violations sit within the WA average of 3.7, across 322 systems statewide. The clean-record guide covers what a comparison like this can hide.

Most recent violation on record

RAINIER WATER DEPARTMENT's most recent violation on record is dated 2025-01-07, with the most recent health-based one dated 1999-01-08. Last reported to EPA: 06/19/2026.

The concern categories on record

RAINIER WATER DEPARTMENT'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)

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 RAINIER WATER DEPARTMENT's record does not cover

This is what RAINIER WATER DEPARTMENT 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 - 1 health-based violation on file for RAINIER WATER DEPARTMENT - 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.