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Water system · PWSID 084690437

CROW CREEK TRIBAL SCHOOL

100
Excellent
PurityRadar safety score

PWSID

084690437

State

South Dakota

City

STEPHAN

Population served

516

Primary source

SWP

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

15

Violations on record

0

Unaddressed

1

Health-based

13

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2025. Official EPA record →

Reporting · Lead & Copper Rule began Feb 2025 Resolved
Monitoring & reporting · EPA contaminant 0800 began Feb 2025 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2024 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2022 Resolved
Treatment technique · EPA contaminant 0700 health-based began Sep 2022 Resolved
Monitoring · Lead & Copper Rule began Jun 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2019 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Sep 2018 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Sep 2018 Resolved
Monitoring & reporting · Total coliform began Aug 2015 Resolved
Monitoring & reporting · Total coliform began Nov 2014 Resolved

Recent enforcement actions

  • State action · SOX Aug 2025
  • State action · SOX Mar 2025
  • State action · SOX Mar 2025
  • State action · SOX Jun 2024
  • State action · SOX Jun 2024
  • State action · SOX Jul 2021
  • State action · SOX Mar 2021
  • State action · SOX Nov 2019

This profile is built from EPA public records for system 084690437 — 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.