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Water system · PWSID MN1020001

Anoka

Anoka, MN · ~17,798 people served

Check your exact address → Anoka overview
92
Excellent
PurityRadar safety score

PWSID

MN1020001

State

Minnesota

City

Anoka

Population served

17,798

Primary source

Groundwater

Score history

▼ 8 points — the score moved from 100 to 92 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 92

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 May 2025). Levels in parts per trillion (ppt).

PFHxS

Perfluorohexanesulfonic acid

9.7 ppt

limit 10 ppt

Near EPA limit

Lithium

13,100 ppt

limit —

No federal limit

PFBA

5 ppt

limit —

No federal limit

Violations & enforcement

5

Violations on record

0

Unaddressed

4

Health-based

40

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2017. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jan 2017 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Jul 2009 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2006 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Oct 2003 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2003 Resolved

Recent enforcement actions

  • State action · SOX Mar 2017
  • State action · SFJ Mar 2017
  • State action · SIA Nov 2016
  • State action · SFL May 2011
  • State action · SOX May 2011
  • State action · SFK May 2011
  • State action · SIF Mar 2010
  • State action · SFK Feb 2010

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 Dec 2025

0.45 · max 1.42 mg/L · 245

Copper

1 station · latest Mar 2025

1.4 · max 1.9 ug/L · 7

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 MN1020001 — 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.