B74/100
KNOXVILLE UTILITIES BOARD - KUB — Water Quality Report 2026
Serving 254,671 people · Tennessee
Water Source
Surface Water
County
—
System ID
TN0000366
Violations
19
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2018.
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 KNOXVILLE UTILITIES BOARD - KUB
Is KNOXVILLE UTILITIES BOARD - KUB water safe to drink?
KNOXVILLE UTILITIES BOARD - KUB water receives a grade of B (74/100), which is considered good. Out of 76 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has KNOXVILLE UTILITIES BOARD - KUB detected?
76 contaminants were tested in KNOXVILLE UTILITIES BOARD - KUB's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does KNOXVILLE UTILITIES BOARD - KUB have any EPA violations?
Yes, KNOXVILLE UTILITIES BOARD - KUB has 19 EPA violation(s) on record, with the most recent in 2018. Violation types include Other, MCL, MR. 1 are health-based violations.
How many people does KNOXVILLE UTILITIES BOARD - KUB serve?
KNOXVILLE UTILITIES BOARD - KUB serves approximately 254,671 people, Tennessee. The system provides water to 1 community: Knoxville.
What type of water does KNOXVILLE UTILITIES BOARD - KUB provide?
KNOXVILLE UTILITIES BOARD - KUB 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 TN0000366.
How does KNOXVILLE UTILITIES BOARD - KUB compare to other utilities in Tennessee?
KNOXVILLE UTILITIES BOARD - KUB scores 74/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Tennessee state page for a full comparison of water systems.