What's in WASHINGTON WATER DEPARTMENT's water?
WASHINGTON 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 7,362 people through 2,806 service connections.
How this compares nationally
WASHINGTON WATER DEPARTMENT has 14 violations on record in total, 7 of thems health-based - ranking it 2,787th of 12,903 systems by violation count, the 78th percentile nationally.
Against the IA average
IA's 203 covered systems average 3.5 health-based violations each; WASHINGTON WATER DEPARTMENT carries 7, more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
WASHINGTON WATER DEPARTMENT's most recent violation on record is dated 2020-01-04, with the most recent health-based one dated 1985-01-10. Last reported to EPA: 06/17/2026.
The concern categories on record
WASHINGTON 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:
- Radionuclides - flagged from: Combined Radium (-226 and -228)
The most severe category on record is radionuclides, which points toward a reverse osmosis-class filter if you want to address it directly.
What WASHINGTON WATER DEPARTMENT's record does not cover
WASHINGTON WATER DEPARTMENT's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 14 logged violations can see. The guide to what this data misses covers that gap.