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Water system · PWSID MO4024368

MADISON COUNTY PWSD 1 NORTH AND SOUTH

FREDERICKTOWN, MO · ~1,705 people served

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

PWSID

MO4024368

State

Missouri

City

FREDERICKTOWN

Population served

1,705

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

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

23

Violations on record

0

Unaddressed

0

Health-based

14

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2025. Official EPA record →

Reporting · EPA contaminant 5200 began Oct 2024 Resolved
Monitoring & reporting · EPA contaminant 0600 began Apr 2008 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2980 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2983 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2990 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2982 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2989 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2992 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 1993 Resolved

Recent enforcement actions

  • State action · SIF Nov 2025
  • State action · SIA Oct 2025
  • State action · SIE Oct 2025
  • State action · SOX Nov 2024
  • EPA/federal action · EOX May 2008
  • EPA/federal action · EIA May 2008
  • State action · SOX Jul 1994
  • State action · SFG Oct 1991

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

1 station · latest Aug 2023

0.183 · max 0.511 mg/l as N · 34

Lead

4 stations · latest Nov 2023

1.23 · max 13.9 ug/l · 26

Copper

6 stations · latest Nov 2023

1 · max 1.5 ug/l · 18

Arsenic

4 stations · latest Nov 2023

0.45 · max 1 ug/l · 16

Manganese

3 stations · latest Nov 2023

5.77 · max 14.5 ug/l · 14

Fluoride

1 station · latest Nov 2023

0.07 · max 0.11 mg/l · 11

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 MO4024368 — 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.