COLUMBIA WATER CO: EPA violation history, explained
COLUMBIA WATER CO has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 25,200 people get their water from it, across 10,648 connections.
COLUMBIA WATER CO's record against the rest of the country
COLUMBIA WATER CO has 135 violations on record in total, 11 of thems health-based - ranking it 1,686th of 12,903 systems by violation count, the 87th percentile nationally.
How COLUMBIA WATER CO compares within PA
PA's 475 covered systems average 5.5 health-based violations each; COLUMBIA WATER CO carries 11, 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 COLUMBIA WATER CO is from 2026-01-03 (health-based: 2019-01-01). Last reported to EPA: 06/15/2026.
What kind of problem, specifically
COLUMBIA WATER CO'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; Surface Water Treatment Rule
- Synthetic organic chemicals / pesticides / VOCs - flagged from: CARBON, TOTAL
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 COLUMBIA WATER CO'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 135 logged violations can see. The guide to what this data misses covers that gap.