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Water system · PWSID SD4602094

WHISPERING WILLOWS

BLACK HAWK, SD · ~64 people served

Check your exact address → BLACK HAWK overview
100
Excellent
PurityRadar safety score

PWSID

SD4602094

State

South Dakota

City

BLACK HAWK

Population served

64

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

50

Violations on record

0

Unaddressed

4

Health-based

39

Enforcement actions

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

Monitoring · Lead & Copper Rule began Apr 2022 Resolved
Other · EPA contaminant 7500 began Feb 2022 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2022 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2021 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2021 Resolved
Other · EPA contaminant 7000 began Jul 2021 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2021 Resolved
Monitoring · Lead & Copper Rule began Jan 2021 Resolved
Treatment technique · EPA contaminant 0400 health-based began Dec 2020 Resolved
Treatment technique · EPA contaminant 0400 health-based began Feb 2015 Resolved
Max contaminant level (MCL) · Nitrate health-based began Apr 2006 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jan 2006 Resolved

Recent enforcement actions

  • State action · SOX Oct 2022
  • State action · SOX Oct 2022
  • State action · SOX Oct 2022
  • State action · SOX Oct 2022
  • State action · SOX Sep 2022
  • State action · SOX Aug 2022
  • State action · SOX Jun 2022
  • State action · SIF Jun 2022

This profile is built from EPA public records for system SD4602094 — 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.