HILL CITY

HILL CITY, SD · ~872 people served

Check your exact address → HILL CITY overview

100

Excellent

PurityRadar safety score

PWSID

SD4600159

State

South Dakota

City

HILL CITY

Population served

872

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

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 Jul 2019. Official EPA record →

Max contaminant level (MCL) · Arsenic health-based began Oct 2018 Resolved

Max contaminant level (MCL) · Arsenic health-based began Jul 2018 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2004 Resolved

Monitoring & reporting · EPA contaminant 2985 began Jan 2003 Resolved

Monitoring & reporting · EPA contaminant 2964 began Jan 2003 Resolved

Monitoring & reporting · EPA contaminant 2378 began Jan 2003 Resolved

Monitoring & reporting · EPA contaminant 2981 began Jan 2003 Resolved

Monitoring & reporting · EPA contaminant 2987 began Jan 2003 Resolved

Monitoring & reporting · EPA contaminant 2380 began Jan 2003 Resolved

Monitoring & reporting · EPA contaminant 2976 began Jan 2003 Resolved

Monitoring & reporting · EPA contaminant 2992 began Jan 2003 Resolved

Monitoring & reporting · EPA contaminant 2955 began Jan 2003 Resolved

Recent enforcement actions

State action · SOX Jul 2019
State action · SOX Jul 2019
State action · SIF Jan 2019
State action · SIE Dec 2018
State action · SIF Oct 2018
State action · SIE Oct 2018
State action · SIF Dec 2004
State action · SOX Jul 2004

This profile is built from EPA public records for system SD4600159 — 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.