SIGNAL PEAK WATER COMPANY

TEMPE, AZ · ~99 people served

Check your exact address → TEMPE overview

100

Excellent

PurityRadar safety score

PWSID

AZ0411079

State

Arizona

City

TEMPE

Population served

Primary source

GWP

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

112

Violations on record

Unaddressed

Health-based

159

Enforcement actions

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

Reporting · Lead & Copper Rule began Sep 2024 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2024 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2024 Resolved

Reporting · Lead & Copper Rule began Jun 2024 Resolved

Monitoring & reporting · EPA contaminant 0999 began Feb 2024 Resolved

Reporting · Lead & Copper Rule began Feb 2024 Resolved

Reporting · Lead & Copper Rule began Aug 2023 Resolved

Reporting · Lead & Copper Rule began Apr 2022 Resolved

Reporting · Lead & Copper Rule began Jan 2020 Resolved

Reporting · Lead & Copper Rule began Dec 2017 Resolved

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

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

Recent enforcement actions

State action · SOX Nov 2024
State action · SIA Nov 2024
State action · SIA Oct 2024
State action · SOX Oct 2024
State action · SOX Jul 2024
State action · SIA Jul 2024
State action · SOX May 2024
State action · SIA May 2024

This profile is built from EPA public records for system AZ0411079 — 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.