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Water system · PWSID TN0000105

MARSHALL CO B.P.U. #1

53
Fair
PurityRadar safety score

PWSID

TN0000105

State

Tennessee

City

LEWISBURG

Population served

13,257

Primary source

SWP

Score history

▼ 47 points — the score moved from 100 to 53 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 53

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 Oct 2023). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

7.1 ppt

limit 4 ppt

Above EPA limit · 1.8×

PFOS

Perfluorooctanesulfonic acid

5 ppt

limit 4 ppt

Above EPA limit · 1.3×

PFBA

13 ppt

limit —

No federal limit

PFBS

8.2 ppt

limit —

No federal limit

PFHxA

4.2 ppt

limit —

No federal limit

PFHpA

3.8 ppt

limit —

No federal limit

PFPeA

3.6 ppt

limit —

No federal limit

Violations & enforcement

3

Violations on record

0

Unaddressed

3

Health-based

15

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2006. Official EPA record →

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2006 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2006 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2005 Resolved

Recent enforcement actions

  • State action · SOX Sep 2006
  • State action · SIF Sep 2006
  • State action · SIE Aug 2006
  • State action · SIA Aug 2006
  • State action · SIF May 2006
  • State action · SIA Apr 2006
  • State action · SIE Apr 2006
  • State action · SIF Sep 2005

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 Apr 2025

11.5 · max 436 ug/L · 7

Copper

1 station · latest Apr 2025

0.41 · max 0.642 ug/L · 4

Nitrate

1 station · latest Mar 2020

0.801 · max 1.09 mg/L · 3

Arsenic

1 station · latest Aug 2024

1.7 · max 1.71 ug/L · 2

Lead

1 station · latest Aug 2024

0.254 · max 0.261 ug/L · 2

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 TN0000105 — 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.