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Water system · PWSID SD4600046

BOX ELDER

BOX ELDER, SD · ~14,000 people served

Check your exact address → BOX ELDER overview
100
Excellent
PurityRadar safety score

PWSID

SD4600046

State

South Dakota

City

BOX ELDER

Population served

14,000

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 Oct 2023). Levels in parts per trillion (ppt).

Lithium

13,000 ppt

limit —

No federal limit

Violations & enforcement

139

Violations on record

0

Unaddressed

15

Health-based

78

Enforcement actions

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

Max contaminant level (MCL) · Uranium health-based began Jul 2024 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2022 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Apr 2022 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Jan 2022 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2022 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2021 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Oct 2021 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Oct 2008 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2008 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Jul 2008 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2008 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Apr 2008 Resolved

Recent enforcement actions

  • State action · SOX Feb 2025
  • State action · SIF Dec 2024
  • State action · SIE Nov 2024
  • State action · SOX Aug 2022
  • State action · SOX Aug 2022
  • State action · SOX Aug 2022
  • State action · SOX Aug 2022
  • State action · SOX Aug 2022

This profile is built from EPA public records for system SD4600046 — 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.