KEYSTONE RANCH

KEYSTONE, CO · ~670 people served

Check your exact address → KEYSTONE overview

100

Excellent

PurityRadar safety score

PWSID

CO0159065

State

Colorado

City

KEYSTONE

Population served

670

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 Feb 2025. Official EPA record →

Treatment technique · Lead & Copper Rule health-based began Dec 2024 Resolved

Monitoring & reporting · Total coliform began Jul 2002 Resolved

Monitoring & reporting · Nitrate began Jan 1993 Resolved

Recent enforcement actions

State action · SOX Feb 2025
State action · SIF Jan 2025
State action · SIA Dec 2024
State action · SIE Dec 2024
State action · SOX Apr 2008
State action · SIE Sep 2002
State action · SFJ Sep 2002
State action · SIE Mar 1995

This profile is built from EPA public records for system CO0159065 — 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.