B60/100
FIRST U.D. OF KNOX COUNTY — Water Quality Report 2026
Serving 115,531 people · Tennessee
Water Source
Surface Water
County
—
System ID
TN0000369
Violations
29
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 FIRST U.D. OF KNOX COUNTY
Is FIRST U.D. OF KNOX COUNTY water safe to drink?
FIRST U.D. OF KNOX COUNTY water receives a grade of B (60/100), which is considered good. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has FIRST U.D. OF KNOX COUNTY detected?
69 contaminants were tested in FIRST U.D. OF KNOX COUNTY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does FIRST U.D. OF KNOX COUNTY have any EPA violations?
Yes, FIRST U.D. OF KNOX COUNTY has 29 EPA violation(s) on record, with the most recent in 2018. Violation types include Other, MR, TT. 2 are health-based violations.
How many people does FIRST U.D. OF KNOX COUNTY serve?
FIRST U.D. OF KNOX COUNTY serves approximately 115,531 people, Tennessee. The system provides water to 1 community: Knoxville.
What type of water does FIRST U.D. OF KNOX COUNTY provide?
FIRST U.D. OF KNOX COUNTY 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 TN0000369.
How does FIRST U.D. OF KNOX COUNTY compare to other utilities in Tennessee?
FIRST U.D. OF KNOX COUNTY scores 60/100 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.