Home/ Directory/ SD/ PONDEROSA RIDGE

Water system · PWSID SD4600863

PONDEROSA RIDGE

RAPID CITY, SD · ~90 people served

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

PWSID

SD4600863

State

South Dakota

City

RAPID CITY

Population served

90

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

43

Violations on record

0

Unaddressed

7

Health-based

53

Enforcement actions

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

Monitoring & reporting · EPA contaminant 3014 began Dec 2023 Resolved
Monitoring · Lead & Copper Rule began Feb 2022 Resolved
Monitoring · Lead & Copper Rule began Nov 2020 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2015 Resolved
Monitoring & reporting · Total coliform began Nov 2009 Resolved
Monitoring & reporting · Total coliform began Oct 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2009 Resolved
Other · EPA contaminant 7000 began Jul 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2000 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1997 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 1995 Resolved

Recent enforcement actions

  • State action · SIF Feb 2024
  • State action · SOX Jan 2024
  • State action · SIE Jan 2024
  • State action · SOX Apr 2022
  • State action · SIF Mar 2022
  • State action · SIE Mar 2022
  • State action · SOX Jan 2021
  • State action · SIF Dec 2020

This profile is built from EPA public records for system SD4600863 — 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.