WEST JEFFERSON COUNTY MWD: EPA violation history, explained
WEST JEFFERSON COUNTY MWD had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 9,367, over 3,746 connections.
How this compares nationally
30 total violations and 18 health-based ones put WEST JEFFERSON COUNTY MWD at the 92th percentile nationally for violation burden, rank 1,019 of 12,903.
How WEST JEFFERSON COUNTY MWD compares within TX
Among the 1,633 TX systems in this dataset, the average is 6.7 health-based violations - WEST JEFFERSON COUNTY MWD's 18 is above that. 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 WEST JEFFERSON COUNTY MWD is from 2026-12-01 (health-based: 2025-01-03). Last reported to EPA: 06/26/2026.
What kind of problem, specifically
WEST JEFFERSON COUNTY MWD'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
- Disinfection byproducts - flagged from: TTHM; Total Haloacetic Acids (HAA5)
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
WEST JEFFERSON COUNTY MWD'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. This record - 18 health-based violations on file for WEST JEFFERSON COUNTY MWD - 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.