PONDEROSA WATER COMPANY

RAPID CITY, SD · ~25 people served

Check your exact address → RAPID CITY overview

100

Excellent

PurityRadar safety score

PWSID

SD4602134

State

South Dakota

City

RAPID CITY

Population served

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 Mar 2015. Official EPA record →

Treatment technique · EPA contaminant 0400 health-based began Feb 2015 Resolved

Monitoring & reporting · EPA contaminant 2976 began Jan 2006 Resolved

Monitoring & reporting · EPA contaminant 2378 began Jan 2006 Resolved

Monitoring & reporting · EPA contaminant 2987 began Jan 2006 Resolved

Monitoring & reporting · EPA contaminant 2992 began Jan 2006 Resolved

Monitoring & reporting · EPA contaminant 2964 began Jan 2006 Resolved

Monitoring & reporting · EPA contaminant 2981 began Jan 2006 Resolved

Monitoring & reporting · EPA contaminant 2985 began Jan 2006 Resolved

Monitoring & reporting · EPA contaminant 2955 began Jan 2006 Resolved

Monitoring & reporting · EPA contaminant 2977 began Jan 2006 Resolved

Monitoring & reporting · EPA contaminant 2982 began Jan 2006 Resolved

Monitoring & reporting · EPA contaminant 2380 began Jan 2006 Resolved

Recent enforcement actions

State action · SOX Mar 2015
State action · SIA Mar 2014
State action · SIF Jun 2007
State action · SIF Jun 2007
State action · SIF Jun 2007
State action · SIF Jun 2007
State action · SIF Jun 2007
State action · SIF Jun 2007

This profile is built from EPA public records for system SD4602134 — 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.