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Water system · PWSID SD4602301

CEDAR GULCH 1

RAPID CITY, SD · ~45 people served

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

PWSID

SD4602301

State

South Dakota

City

RAPID CITY

Population served

45

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

129

Violations on record

0

Unaddressed

9

Health-based

282

Enforcement actions

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

Treatment technique · EPA contaminant 0400 health-based began Feb 2025 Resolved
Other · EPA contaminant 7500 began May 2019 Resolved
Monitoring · Lead & Copper Rule began May 2019 Resolved
Monitoring · Lead & Copper Rule began Nov 2018 Resolved
Treatment technique · EPA contaminant 0700 health-based began Oct 2018 Resolved
Monitoring · Lead & Copper Rule began Oct 2018 Resolved
Monitoring · Lead & Copper Rule began Sep 2018 Resolved
Monitoring · Lead & Copper Rule began Aug 2018 Resolved
Monitoring · Lead & Copper Rule began Jul 2018 Resolved
Monitoring · Lead & Copper Rule began May 2018 Resolved
Monitoring · Lead & Copper Rule began Apr 2018 Resolved
Monitoring · Lead & Copper Rule began Aug 2017 Resolved

Recent enforcement actions

  • State action · SOX May 2025
  • State action · SOX May 2025
  • State action · SIA Feb 2025
  • State action · SOX Dec 2019
  • State action · SOX Jul 2019
  • State action · SOX Jul 2019
  • State action · SOX Jul 2019
  • State action · SOX Jul 2019

This profile is built from EPA public records for system SD4602301 — 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.