PORTLAND WATER DEPARTMENT: EPA violation history, explained
PORTLAND WATER DEPARTMENT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 5,010 people get their water from it, across 2,322 connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, PORTLAND WATER DEPARTMENT ranks 2,754th by violation burden (79th percentile) - 17 violations total, 7 health-baseds.
How PORTLAND WATER DEPARTMENT compares within CT
CT's 73 covered systems average 2.6 health-based violations each; PORTLAND 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
The last violation EPA has on record for PORTLAND WATER DEPARTMENT is from 2027-06-12 (health-based: 2008-01-07). Last reported to EPA: 06/29/2026.
What kind of problem, specifically
PORTLAND 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); 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
Everything on this page is PORTLAND WATER DEPARTMENT's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 7 health-based violations on file for PORTLAND 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.