What's in HILLSBORO, CITY OF's water?

HILLSBORO, CITY OF's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. Population served: 92,632, over 28,385 connections.

How this compares nationally

Out of 12,903 systems in this dataset, HILLSBORO, CITY OF ranks 10,903th by violation burden (16th percentile) - 6 violations total, 0 health-baseds.

Against the OR average

HILLSBORO, CITY OF's 0 health-based violations sit within the OR average of 6.0, across 160 systems statewide. See the lead and copper guide for why lead counts differently.

Most recent violation on record

HILLSBORO, CITY OF's most recent violation on record is dated 2025-01-07. Last reported to EPA: 06/26/2026.

What HILLSBORO, CITY OF's record does not cover

HILLSBORO, CITY OF'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. This record - 0 health-based violations on file for HILLSBORO, CITY OF - 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.