COPPER MOUNTAIN RANCH CFD

CASA GRANDE, AZ · ~1,071 people served

Check your exact address → CASA GRANDE overview

100

Excellent

PurityRadar safety score

PWSID

AZ0411328

State

Arizona

City

CASA GRANDE

Population served

1,071

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

Latest detections from EPA’s UCMR5 monitoring (through Aug 2023). Levels in parts per trillion (ppt).

Lithium

185,000 ppt

limit —

No federal limit

Violations & enforcement

196

Violations on record

Unaddressed

Health-based

215

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0999 began Mar 2025 Resolved

Other · EPA contaminant 7000 began Jul 2024 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2023 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2023 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2020 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2018 Resolved

Reporting · Lead & Copper Rule began May 2018 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2018 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2018 Resolved

Monitoring & reporting · Lead & Copper Rule began Aug 2017 Resolved

Max contaminant level (MCL) · Nitrate health-based began Jul 2017 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2017 Resolved

Recent enforcement actions

State action · SIA Apr 2025
State action · SOX Apr 2025
State action · SIA Oct 2024
State action · SOX Oct 2024
State action · SOX Oct 2024
State action · SIF Aug 2024
State action · SIE Nov 2023
State action · SIA Nov 2023

This profile is built from EPA public records for system AZ0411328 — 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.