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Water system · PWSID SD4600050

HIGHLAND HILLS

RAPID CITY, SD · ~38 people served

Check your exact address → RAPID CITY overview
100
Excellent
PurityRadar safety score

PWSID

SD4600050

State

South Dakota

City

RAPID CITY

Population served

38

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

49

Violations on record

0

Unaddressed

4

Health-based

31

Enforcement actions

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

Monitoring · Lead & Copper Rule began Jul 2025 Resolved
Monitoring · Lead & Copper Rule began Oct 2024 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Jul 2023 Resolved
Monitoring & reporting · EPA contaminant 2985 began Apr 1995 Resolved
Monitoring & reporting · EPA contaminant 2964 began Apr 1995 Resolved
Monitoring & reporting · EPA contaminant 2378 began Apr 1995 Resolved
Monitoring & reporting · EPA contaminant 2987 began Apr 1995 Resolved
Monitoring & reporting · EPA contaminant 2380 began Apr 1995 Resolved
Monitoring & reporting · EPA contaminant 2976 began Apr 1995 Resolved
Monitoring & reporting · EPA contaminant 2981 began Apr 1995 Resolved
Monitoring & reporting · EPA contaminant 2992 began Apr 1995 Resolved
Monitoring & reporting · EPA contaminant 2955 began Apr 1995 Resolved

Recent enforcement actions

  • State action · SOX Sep 2025
  • State action · SIE Aug 2025
  • State action · SOX Dec 2024
  • State action · SIF Nov 2024
  • State action · SIE Nov 2024
  • State action · SOX Oct 2023
  • State action · SIF Aug 2023
  • State action · SIE Aug 2023

This profile is built from EPA public records for system SD4600050 — 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.