F0/100
NORTHERN KENTUCKY WATER DISTRICT — Water Quality Report 2026
Serving 199,460 people · Kentucky
Water Source
Surface Water
County
—
System ID
KY0590220
Violations
141
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 770.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2016.
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 NORTHERN KENTUCKY WATER DISTRICT
Is NORTHERN KENTUCKY WATER DISTRICT water safe to drink?
NORTHERN KENTUCKY WATER DISTRICT water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 141 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has NORTHERN KENTUCKY WATER DISTRICT detected?
76 contaminants were tested in NORTHERN KENTUCKY WATER DISTRICT's water. Notable contaminants include chlorate. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does NORTHERN KENTUCKY WATER DISTRICT have any EPA violations?
Yes, NORTHERN KENTUCKY WATER DISTRICT has 141 EPA violation(s) on record, with the most recent in 2016. Violation types include MON, MR.
How many people does NORTHERN KENTUCKY WATER DISTRICT serve?
NORTHERN KENTUCKY WATER DISTRICT serves approximately 199,460 people, Kentucky.
What type of water does NORTHERN KENTUCKY WATER DISTRICT provide?
NORTHERN KENTUCKY WATER DISTRICT 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 KY0590220.
How does NORTHERN KENTUCKY WATER DISTRICT compare to other utilities in Kentucky?
NORTHERN KENTUCKY WATER DISTRICT scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Kentucky state page for a full comparison of water systems.