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Water system · PWSID SD4600078

BUFFALO

BUFFALO, SD · ~346 people served

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

PWSID

SD4600078

State

South Dakota

City

BUFFALO

Population served

346

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

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

73

Violations on record

0

Unaddressed

2

Health-based

20

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2012. Official EPA record →

Monitoring & reporting · EPA contaminant 0999 began Jul 2011 Resolved
Monitoring & reporting · EPA contaminant 2043 began Jan 1996 Resolved
Monitoring & reporting · EPA contaminant 2040 began Jan 1996 Resolved
Monitoring & reporting · EPA contaminant 2326 began Jan 1996 Resolved
Monitoring & reporting · EPA contaminant 2047 began Jan 1996 Resolved
Monitoring & reporting · EPA contaminant 2044 began Jan 1996 Resolved
Monitoring & reporting · EPA contaminant 2046 began Jan 1996 Resolved
Monitoring & reporting · EPA contaminant 2031 began Jan 1996 Resolved
Monitoring & reporting · EPA contaminant 2041 began Jan 1996 Resolved
Monitoring & reporting · EPA contaminant 2110 began Jan 1996 Resolved
Monitoring & reporting · Chlorite began Jan 1996 Resolved
Monitoring & reporting · EPA contaminant 2036 began Jan 1996 Resolved

Recent enforcement actions

  • State action · SOX Jan 2012
  • State action · SIE Oct 2011
  • State action · SIF Nov 1999
  • State action · SOX Nov 1999
  • State action · SIE Sep 1999
  • State action · SOX Sep 1998
  • State action · SIF Jun 1996
  • State action · SIE Apr 1996

This profile is built from EPA public records for system SD4600078 — 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.