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Water system · PWSID TN0000634

SIGNAL MOUNTAIN WATER SYSTEM

100
Excellent
PurityRadar safety score

PWSID

TN0000634

State

Tennessee

City

SIGNAL MOUNTAIN

Population served

7,714

Primary source

SWP

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

Latest detections from EPA’s UCMR5 monitoring (through Dec 2024). Levels in parts per trillion (ppt).

PFBA

9.1 ppt

limit —

No federal limit

PFBS

4.5 ppt

limit —

No federal limit

Violations & enforcement

1

Violations on record

0

Unaddressed

0

Health-based

4

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 1999. Official EPA record →

Other · EPA contaminant 7000 began Oct 1999 Resolved

Recent enforcement actions

  • State action · SIE Nov 1999
  • State action · SIA Nov 1999
  • State action · SOX Oct 1999
  • State action · SIA Sep 1986

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

1 station · latest Jun 2025

3.2 · max 16.9 ug/L · 8

Copper

1 station · latest Jun 2025

0.36 · max 0.487 ug/L · 7

Arsenic

1 station · latest Jun 2025

0.78 · max 0.889 ug/L · 2

Lead

1 station · latest Mar 2025

0.418 · max 0.418 ug/L · 1

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 TN0000634 — 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.