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Water system · PWSID MI0003342

INDEPENDENCE TOWNSHIP

CLARKSTON, MI · ~11,790 people served

Check your exact address → CLARKSTON overview
21
Action needed
PurityRadar safety score

PWSID

MI0003342

State

Michigan

City

CLARKSTON

Population served

11,790

Primary source

Groundwater

Score history

▼ 79 points — the score moved from 100 to 21 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 21

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

PFHxS

Perfluorohexanesulfonic acid

26 ppt

limit 10 ppt

Above EPA limit · 2.6×

PFOS

Perfluorooctanesulfonic acid

9.4 ppt

limit 4 ppt

Above EPA limit · 2.4×

PFOA

Perfluorooctanoic acid

4.8 ppt

limit 4 ppt

Above EPA limit · 1.2×

Lithium

11,000 ppt

limit —

No federal limit

PFBA

5.6 ppt

limit —

No federal limit

PFBS

5.2 ppt

limit —

No federal limit

PFPeS

4.5 ppt

limit —

No federal limit

PFPeA

3.5 ppt

limit —

No federal limit

PFHxA

3.3 ppt

limit —

No federal limit

Violations & enforcement

10

Violations on record

0

Unaddressed

3

Health-based

30

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2022. Official EPA record →

Monitoring & reporting · Haloacetic acids (HAA5) began Jun 2020 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jun 2020 Resolved
Monitoring · Lead & Copper Rule began May 2020 Resolved
Monitoring & reporting · EPA contaminant 3014 began Jul 2012 Resolved
Monitoring & reporting · Total coliform began Jul 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2005 Resolved
Other · EPA contaminant 7000 began Jul 2001 Resolved
Monitoring & reporting · Total coliform began Jul 1998 Resolved

Recent enforcement actions

  • State action · SOX May 2022
  • State action · SIA Jun 2021
  • State action · SIE Jun 2021
  • State action · SOX Jun 2020
  • State action · SIA Jun 2020
  • State action · SIE Jun 2020
  • State action · SIF Apr 2013
  • State action · SIF Apr 2013

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

Copper

1 station · latest Nov 2024

0.637 · max 1.06 ug/L · 8

Lead

1 station · latest Nov 2024

0.0962 · max 0.214 ug/L · 8

Nitrate

1 station · latest Nov 2024

0.093 · max 0.27 mg/L · 8

Manganese

1 station · latest Nov 2024

64.3 · max 87.7 ug/L · 4

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 MI0003342 — 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.