What's in PORTLAND WATER SYSTEM's water?
PORTLAND WATER SYSTEM has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 25,761, over 9,506 connections.
How this compares nationally
PORTLAND WATER SYSTEM has 27 violations on record in total, 5 of thems health-based - ranking it 3,531th of 12,903 systems by violation count, the 73th percentile nationally.
How PORTLAND WATER SYSTEM compares within TN
Among the 318 TN systems in this dataset, the average is 4.8 health-based violations - PORTLAND WATER SYSTEM's 5 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 PORTLAND WATER SYSTEM is from 2022-01-04 (health-based: 2004-01-05). Last reported to EPA: 05/14/2026.
What kind of problem, specifically
PORTLAND WATER SYSTEM'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); Interim Enhanced 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
PORTLAND WATER SYSTEM'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 27 logged violations can see. The guide to what this data misses covers that gap.