F8/100
DAYTON WATER DEPT — Water Quality Report 2026
Serving 25,054 people · Tennessee
Water Source
Surface Water
County
—
System ID
TN0000174
Violations
49
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
1
Health-Related
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2024 – March 31, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issued
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 DAYTON WATER DEPT
Is DAYTON WATER DEPT water safe to drink?
DAYTON WATER DEPT water receives a grade of F (8/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 49 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has DAYTON WATER DEPT detected?
69 contaminants were tested in DAYTON WATER DEPT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does DAYTON WATER DEPT have any EPA violations?
Yes, DAYTON WATER DEPT has 49 EPA violation(s) on record, with the most recent in 2024. Violation types include MCL, MR, Other. 10 are health-based violations.
How many people does DAYTON WATER DEPT serve?
DAYTON WATER DEPT serves approximately 25,054 people, Tennessee. The system provides water to 1 community: Dayton.
What type of water does DAYTON WATER DEPT provide?
DAYTON WATER DEPT 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 TN0000174.
How does DAYTON WATER DEPT compare to other utilities in Tennessee?
DAYTON WATER DEPT scores 8/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Tennessee state page for a full comparison of water systems.