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Water system · PWSID 084690483

WOLF CREEK WATER SYSTEM

PINE RIDGE, SD · ~65 people served

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

PWSID

084690483

State

South Dakota

City

PINE RIDGE

Population served

65

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

25

Violations on record

0

Unaddressed

4

Health-based

36

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0200 began Jun 2025 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2025 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 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 2023 Resolved
Monitoring & reporting · Lead & Copper Rule began Sep 2022 Resolved
Monitoring · Lead & Copper Rule began Mar 2019 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Sep 2018 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Sep 2018 Resolved
Treatment technique · EPA contaminant 0700 health-based began Jul 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2016 Resolved

Recent enforcement actions

  • State action · SOX Sep 2025
  • State action · SOX Aug 2025
  • State action · SOX Aug 2025
  • State action · SOX Feb 2024
  • State action · SOX Oct 2022
  • State action · SOX Sep 2020
  • State action · SOX Apr 2019
  • State action · SOX Aug 2018

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Arsenic

1 station · latest Oct 2023

0.002 · max 0.002 mg/L · 38

Copper

1 station · latest Oct 2023

0.0006 · max 0.003 mg/L · 37

Fluoride

1 station · latest Oct 2023

0.19 · max 0.22 mg/L · 19

Lead

1 station · latest Oct 2023

0.00025 · max 0.0008 mg/L · 16

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system 084690483 — 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.