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Water system · PWSID SD4600080

CANISTOTA

CANISTOTA, SD · ~642 people served

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

PWSID

SD4600080

State

South Dakota

City

CANISTOTA

Population served

642

Primary source

GWP

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

10

Violations on record

0

Unaddressed

1

Health-based

29

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2024. Official EPA record →

Monitoring · Lead & Copper Rule began Dec 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2011 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2007 Resolved
Monitoring & reporting · Total coliform began Jul 2007 Resolved
Monitoring & reporting · Total coliform began May 2006 Resolved
Monitoring & reporting · Total coliform began Nov 2004 Resolved
Monitoring & reporting · Total coliform began Sep 2004 Resolved
Monitoring & reporting · Total coliform began Sep 2000 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1999 Resolved

Recent enforcement actions

  • State action · SOX Dec 2024
  • State action · SIF Jan 2024
  • State action · SIE Jan 2024
  • State action · SOX Dec 2011
  • State action · SIE Jul 2011
  • State action · SOX Jun 2010
  • State action · SIE Apr 2009
  • State action · SIF Jul 2008

This profile is built from EPA public records for system SD4600080 — 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.