HERREID

HERREID, SD · ~416 people served

Check your exact address → HERREID overview

100

Excellent

PurityRadar safety score

PWSID

SD4600155

State

South Dakota

City

HERREID

Population served

416

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2024. Official EPA record →

Treatment technique · EPA contaminant 0400 health-based began Nov 2023 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2023 Resolved

Monitoring · Lead & Copper Rule began Mar 2019 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2019 Resolved

Treatment technique · EPA contaminant 0400 health-based began Jul 2017 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2014 Resolved

Recent enforcement actions

State action · SOX Dec 2024
State action · SOX Sep 2024
State action · SIE Dec 2023
State action · SIA Nov 2023
State action · SOX Apr 2020
State action · SIF Mar 2020
State action · SOX May 2019
State action · SIE Apr 2019

This profile is built from EPA public records for system SD4600155 — 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.