Home/ Directory/ TN/ DAYTON WATER DEPT

Water system · PWSID TN0000174

DAYTON WATER DEPT

DAYTON, TN · ~25,054 people served

Check your exact address → DAYTON overview
100
Excellent
PurityRadar safety score

PWSID

TN0000174

State

Tennessee

City

DAYTON

Population served

25,054

Primary source

Surface water

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

28

Violations on record

1

Unaddressed

9

Health-based

60

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2024. Official EPA record →

Other · EPA contaminant 7500 began Aug 2017 Unaddressed
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2021 Resolved
Other · EPA contaminant 7000 began Oct 2020 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2020 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2016 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2016 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2016 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2015 Resolved

Recent enforcement actions

  • State action · SFO Aug 2024
  • State action · SOX Aug 2024
  • State action · SOX Jun 2024
  • State action · SIF May 2024
  • State action · SIA May 2024
  • State action · SIE May 2024
  • State action · SIA Apr 2021
  • State action · SOX Mar 2021

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Manganese

2 stations · latest Oct 2025

39 · max 82.1 ug/L · 25

Copper

2 stations · latest Oct 2025

0.764 · max 5.34 ug/L · 20

Nitrate

1 station · latest Jun 2025

0.163 · max 0.343 mg/L · 12

Arsenic

1 station · latest Oct 2025

0.707 · max 0.982 ug/L · 8

Lead

2 stations · latest Oct 2024

0.367 · max 1.59 ug/L · 4

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system TN0000174 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.