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Water system · PWSID SD4600391

CROOKS

CROOKS, SD · ~1,362 people served

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

PWSID

SD4600391

State

South Dakota

City

CROOKS

Population served

1,362

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

40

Violations on record

0

Unaddressed

0

Health-based

21

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 1999. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jan 1998 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1996 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1995 Resolved
Monitoring & reporting · Nitrate began Jan 1995 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1995 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1994 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1994 Resolved
Monitoring & reporting · EPA contaminant 2015 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2306 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2065 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2005 began Jan 1993 Resolved
Monitoring & reporting · EPA contaminant 2042 began Jan 1993 Resolved

Recent enforcement actions

  • State action · SOX Jun 1999
  • State action · SIF Feb 1999
  • State action · SIE Jan 1999
  • State action · SOX Dec 1996
  • State action · SFG Nov 1996
  • State action · SIE Sep 1996
  • State action · SOX Aug 1996
  • State action · SIE Apr 1996

This profile is built from EPA public records for system SD4600391 — 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.