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Water system · PWSID 084690480

OGLALA RWS PIPELINE

PINE RIDGE, SD · ~3,562 people served

Check your exact address → PINE RIDGE overview
100
Excellent
PurityRadar safety score

PWSID

084690480

State

South Dakota

City

PINE RIDGE

Population served

3,562

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

Latest detections from EPA’s UCMR5 monitoring (through Dec 2024). Levels in parts per trillion (ppt).

Lithium

48,400 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

0

Unaddressed

1

Health-based

6

Enforcement actions

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

Monitoring & reporting · EPA contaminant 2969 began Jan 2024 Resolved
Treatment technique · EPA contaminant 0700 health-based began Jan 2020 Resolved

Recent enforcement actions

  • State action · SOX Feb 2025
  • State action · SIE Oct 2020
  • State action · SOX Oct 2020
  • State action · SOX Oct 2020
  • State action · SIA Oct 2020
  • EPA/federal action · EF/ Jul 2015

This profile is built from EPA public records for system 084690480 — 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.