Johnston Co-West, NC Water Quality
Johnston Co-West: EPA violation history, explained
Johnston Co-West has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 99,027 people get their water from it, across 38,987 connections.
How this compares nationally
Out of 12,903 systems in this dataset, Johnston Co-West ranks 8,270th by violation burden (36th percentile) - 9 violations total, 1 health-based.
Against the NC average
Among the 360 NC systems in this dataset, the average is 5.7 health-based violations - Johnston Co-West's 1 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
Johnston Co-West's most recent violation on record is dated 2025-11-02, with the most recent health-based one dated 1998-01-09. Last reported to EPA: 06/26/2026.
The concern categories on record
Johnston Co-West'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 Johnston Co-West's record does not cover
Johnston Co-West'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 - 1 health-based violation on file for Johnston Co-West - 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.