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Water system · PWSID CO0101320

THE GROVE AT ALTA RIDGE

THORNTON, CO · ~1,300 people served

Check your exact address → THORNTON overview
100
Excellent
PurityRadar safety score

PWSID

CO0101320

State

Colorado

City

THORNTON

Population served

1,300

Primary source

SWP

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

15

Violations on record

0

Unaddressed

1

Health-based

34

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2023. Official EPA record →

Other · Lead & Copper Rule began Oct 2022 Resolved
Monitoring & reporting · EPA contaminant 0600 began Oct 2022 Resolved
Other · EPA contaminant 7500 began Sep 2022 Resolved
Monitoring & reporting · EPA contaminant 0200 began Sep 2022 Resolved
Treatment technique · EPA contaminant 0400 health-based began Aug 2022 Resolved
Monitoring · Lead & Copper Rule began Aug 2022 Resolved
Monitoring & reporting · EPA contaminant 0200 began Aug 2022 Resolved
Monitoring & reporting · EPA contaminant 1006 began Jul 2022 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2022 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2022 Resolved
Monitoring · Lead & Copper Rule began Jul 2022 Resolved
Monitoring & reporting · EPA contaminant 0200 began Jul 2022 Resolved

Recent enforcement actions

  • State action · SIF Sep 2023
  • State action · SOX Nov 2022
  • State action · SOX Nov 2022
  • State action · SIA Nov 2022
  • State action · SIE Nov 2022
  • State action · SIE Nov 2022
  • State action · SIA Nov 2022
  • State action · SOX Oct 2022

This profile is built from EPA public records for system CO0101320 — 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.