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Water system · PWSID 055294502

PRAIRIE ISLAND

WELCH, MN · ~6,699 people served

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

PWSID

055294502

State

Minnesota

City

WELCH

Population served

6,699

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

Lithium

18,000 ppt

limit —

No federal limit

Violations & enforcement

75

Violations on record

0

Unaddressed

0

Health-based

41

Enforcement actions

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

Reporting · EPA contaminant 5200 began Oct 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2023 Resolved
Reporting · Lead & Copper Rule began Aug 2023 Resolved
Monitoring & reporting · Nitrate began Jan 2023 Resolved
Monitoring & reporting · Selenium began Jan 2017 Resolved
Monitoring & reporting · EPA contaminant 1036 began Jan 2017 Resolved
Monitoring & reporting · Beryllium began Jan 2017 Resolved
Monitoring & reporting · Barium began Jan 2017 Resolved
Monitoring & reporting · Chromium (total) began Jan 2017 Resolved
Monitoring & reporting · Cadmium began Jan 2017 Resolved
Monitoring & reporting · Fluoride began Jan 2017 Resolved
Monitoring & reporting · Cyanide began Jan 2017 Resolved

Recent enforcement actions

  • EPA/federal action · EIF Jun 2025
  • EPA/federal action · EIE Apr 2025
  • EPA/federal action · EIA Apr 2025
  • EPA/federal action · EOX Oct 2024
  • EPA/federal action · EOX Jun 2024
  • EPA/federal action · EIE Feb 2024
  • EPA/federal action · EIA Feb 2024
  • EPA/federal action · EIE Oct 2023

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

Arsenic

1 station · latest Jul 2025

2.8 · max 4.24 ug/L · 5

Lead

1 station · latest Jul 2025

0.51 · max 1.27 ug/L · 4

Copper

1 station · latest Aug 2022

2 · max 4.7 ug/L · 3

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 055294502 — 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.