BROOKINGS MUNICIPAL UTILITIES

BROOKINGS, SD · ~23,377 people served

Check your exact address → BROOKINGS overview

100

Excellent

PurityRadar safety score

PWSID

SD4600071

State

South Dakota

City

BROOKINGS

Population served

23,377

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 Jun 2024). Levels in parts per trillion (ppt).

Lithium

23,200 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2021. Official EPA record →

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2020 Resolved

Other · EPA contaminant 7000 began Jul 2003 Resolved

Recent enforcement actions

State action · SOX Jun 2021
State action · SIF Oct 2020
State action · SIE Aug 2020
State action · SOX Jul 2003
State action · SO6 Jul 2003
State action · SIA Sep 1989
State action · SO6 Sep 1989
State action · SO6 Sep 1985

This profile is built from EPA public records for system SD4600071 — 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.