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Water system · PWSID TN0000770

MAURY CO WATER SYSTEM

COLUMBIA, TN · ~24,488 people served

Check your exact address → COLUMBIA overview
64
Fair
PurityRadar safety score

PWSID

TN0000770

State

Tennessee

City

COLUMBIA

Population served

24,488

Primary source

SWP

Score history

▼ 36 points — the score moved from 100 to 64 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 64

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

PFOA

Perfluorooctanoic acid

6.7 ppt

limit 4 ppt

Above EPA limit · 1.7×

PFOS

Perfluorooctanesulfonic acid

4.1 ppt

limit 4 ppt

Above EPA limit · 1.0×

PFBS

7.2 ppt

limit —

No federal limit

PFHxA

5.1 ppt

limit —

No federal limit

PFPeA

4.9 ppt

limit —

No federal limit

PFHpA

3.2 ppt

limit —

No federal limit

Violations & enforcement

12

Violations on record

1

Unaddressed

7

Health-based

41

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2020. Official EPA record →

Other · EPA contaminant 7500 began Oct 2012 Unaddressed
Other · EPA contaminant 7000 began Jul 2019 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2012 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2011 Resolved
Monitoring & reporting · Total coliform began Aug 2011 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2011 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2011 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2009 Resolved
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) · Haloacetic acids (HAA5) health-based began Oct 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2003 Resolved

Recent enforcement actions

  • State action · SOX Jul 2020
  • State action · SIA Nov 2019
  • State action · SOX May 2012
  • State action · SIF Apr 2012
  • State action · SIE Apr 2012
  • State action · SIA Apr 2012
  • State action · SIF Feb 2012
  • State action · SIE Jan 2012

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

4 stations · latest Feb 2026

48.5 · max 708 ug/L · 59

Copper

3 stations · latest Feb 2026

0.72 · max 2.6 ug/L · 48

Arsenic

3 stations · latest Feb 2026

0.748 · max 2.13 ug/L · 34

Lead

4 stations · latest Feb 2026

0.343 · max 2.58 ug/L · 32

Nitrate

2 stations · latest Jul 2025

0.893 · max 2.06 mg/L · 17

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 TN0000770 — 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.