B69/100
JOHNSTON CO-WEST — Water Quality Report 2026
Serving 92,365 people · North Carolina
Water Source
Surface Water
County
—
System ID
NC0351070
Violations
8
Contaminant Test Results
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOS | 0.011 µg/L | 0.004 µg/L | Over Limit |
PFOA | 0.005 µg/L | 0.004 µg/L | Over Limit |
chlorate | 921.00 µg/L | — | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: February 11, 2025 – April 4, 2025Rule: Total Coliform RuleEnforcement: Formal — state order issued
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2021 – October 14, 2021Enforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About JOHNSTON CO-WEST
Is JOHNSTON CO-WEST water safe to drink?
JOHNSTON CO-WEST water receives a grade of B (69/100), which is considered good. Out of 69 contaminants tested, 2 exceed EPA legal limits. 3 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has JOHNSTON CO-WEST detected?
69 contaminants were tested in JOHNSTON CO-WEST's water. Notable contaminants include PFOS, PFOA, chlorate. 2 exceed EPA legal limits (MCLs). 3 exceed EPA health goals (MCLGs).
Does JOHNSTON CO-WEST have any EPA violations?
Yes, JOHNSTON CO-WEST has 8 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, Other, MR. 1 are health-based violations.
How many people does JOHNSTON CO-WEST serve?
JOHNSTON CO-WEST serves approximately 92,365 people, North Carolina. The system provides water to 1 community: Wilson Mills.
What type of water does JOHNSTON CO-WEST provide?
JOHNSTON CO-WEST sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is NC0351070.
How does JOHNSTON CO-WEST compare to other utilities in North Carolina?
JOHNSTON CO-WEST scores 69/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our North Carolina state page for a full comparison of water systems.