A87/100
NIOTA WATER SYSTEM — Water Quality Report 2026
Serving 3,932 people · Tennessee
Water Source
GUP
County
—
System ID
TN0000510
Violations
10
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
1
Violation (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: May 1, 2021 – May 31, 2021Rule: Total Coliform RuleEnforcement: 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 NIOTA WATER SYSTEM
Is NIOTA WATER SYSTEM water safe to drink?
NIOTA WATER SYSTEM water receives a grade of A (87/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has NIOTA WATER SYSTEM detected?
31 contaminants were tested in NIOTA WATER SYSTEM's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does NIOTA WATER SYSTEM have any EPA violations?
Yes, NIOTA WATER SYSTEM has 10 EPA violation(s) on record, with the most recent in 2021. Violation types include MON, MR, Other.
How many people does NIOTA WATER SYSTEM serve?
NIOTA WATER SYSTEM serves approximately 3,932 people, Tennessee.
What type of water does NIOTA WATER SYSTEM provide?
NIOTA WATER SYSTEM sources its water from gup. The utility's system ID is TN0000510.
How does NIOTA WATER SYSTEM compare to other utilities in Tennessee?
NIOTA WATER SYSTEM scores 87/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Tennessee state page for a full comparison of water systems.