What's in COLLIERVILLE WATER DEPT's water?
COLLIERVILLE WATER DEPT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 51,972 people get their water from it, across 20,144 connections.
COLLIERVILLE WATER DEPT's record against the rest of the country
32 total violations and 2 health-based ones put COLLIERVILLE WATER DEPT at the 53th percentile nationally for violation burden, rank 6,042 of 12,903.
How COLLIERVILLE WATER DEPT compares within TN
TN's 318 covered systems average 4.8 health-based violations each; COLLIERVILLE WATER DEPT carries 2, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for COLLIERVILLE WATER DEPT is from 2022-03-12 (health-based: 1998-01-08). Last reported to EPA: 05/14/2026.
What kind of problem, specifically
COLLIERVILLE WATER DEPT'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)
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
This is what COLLIERVILLE WATER DEPT reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 32 logged violations can see. The guide to what this data misses covers that gap.