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Water system · PWSID MO3024055

BOONE COUNTY CONS PWSD 1

COLUMBIA, MO · ~24,700 people served

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

PWSID

MO3024055

State

Missouri

City

COLUMBIA

Population served

24,700

Primary source

Groundwater

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 Nov 2024). Levels in parts per trillion (ppt).

Lithium

48,000 ppt

limit —

No federal limit

Violations & enforcement

7

Violations on record

1

Unaddressed

6

Health-based

17

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2015. Official EPA record →

Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed
Max contaminant level (MCL) · Total coliform health-based began Oct 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 1992 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1992 Resolved

Recent enforcement actions

  • State action · SOX Feb 2015
  • State action · SIF Nov 2014
  • State action · SFJ Oct 2014
  • State action · SIE Oct 2014
  • State action · SIF Sep 2014
  • State action · SFJ Aug 2014
  • State action · SIE Aug 2014
  • State action · SIF Aug 2014

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

Nitrate

5 stations · latest Sep 2024

0.01 · max 3.23 mg/L · 97

Fluoride

10 stations · latest Aug 2023

0.32 · max 0.98 mg/l · 77

Arsenic

3 stations · latest Mar 2024

0.585 · max 1.05 ug/L · 10

Copper

3 stations · latest Mar 2024

1.17 · max 1.8 ug/L · 10

Manganese

3 stations · latest Mar 2024

77.7 · max 134 ug/L · 10

Atrazine

3 stations · latest Sep 2021

61.8 · max 249 ng/l · 6

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 MO3024055 — 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.