TWIN FALLS CITY OF: EPA violation history, explained
TWIN FALLS CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 56,121, over 19,273 connections.
TWIN FALLS CITY OF's record against the rest of the country
Out of 12,903 systems in this dataset, TWIN FALLS CITY OF ranks 457th by violation burden (96th percentile) - 61 violations total, 35 health-baseds.
How TWIN FALLS CITY OF compares within ID
ID's 88 covered systems average 10.3 health-based violations each; TWIN FALLS CITY OF carries 35, 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 TWIN FALLS CITY OF is from 2026-01-02 (health-based: 2012-01-04). Last reported to EPA: 06/26/2026.
What kind of problem, specifically
TWIN FALLS CITY OF'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)
- Other regulated metals - flagged from: Arsenic
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 TWIN FALLS CITY OF's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 61 logged violations can see. The guide to what this data misses covers that gap.