B76/100
NORTHWEST UTILITY DISTRICT — Water Quality Report 2026
Serving 20,794 people · Tennessee
Water Source
Surface Water
County
—
System ID
TN0000169
Violations
13
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
Surface water treatment technique failure
When: July 1, 2024 – July 15, 2024Enforcement: 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 NORTHWEST UTILITY DISTRICT
Is NORTHWEST UTILITY DISTRICT water safe to drink?
NORTHWEST UTILITY DISTRICT water receives a grade of B (76/100), 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 NORTHWEST UTILITY DISTRICT detected?
69 contaminants were tested in NORTHWEST UTILITY DISTRICT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does NORTHWEST UTILITY DISTRICT have any EPA violations?
Yes, NORTHWEST UTILITY DISTRICT has 13 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MR, MCL. 2 are health-based violations.
How many people does NORTHWEST UTILITY DISTRICT serve?
NORTHWEST UTILITY DISTRICT serves approximately 20,794 people, Tennessee. The system provides water to 1 community: Soddy-Daisy.
What type of water does NORTHWEST UTILITY DISTRICT provide?
NORTHWEST UTILITY 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 TN0000169.
How does NORTHWEST UTILITY DISTRICT compare to other utilities in Tennessee?
NORTHWEST UTILITY DISTRICT scores 76/100 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.