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Water system · PWSID 090400057

Second Mesa Day School - BIA

Second Mesa, AZ · ~255 people served

Check your exact address → Second Mesa overview
100
Excellent
PurityRadar safety score

PWSID

090400057

State

Arizona

City

Second Mesa

Population served

255

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

147

Violations on record

1

Unaddressed

21

Health-based

166

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2022 Unaddressed
Other · EPA contaminant 7500 began Jan 2025 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2025 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2024 Resolved
Other · EPA contaminant 7000 began Jul 2024 Resolved
Other · EPA contaminant 7500 began Jul 2024 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2024 Resolved
Other · EPA contaminant 7500 began Jun 2024 Resolved
Monitoring · Lead & Copper Rule began Jun 2024 Resolved
Other · EPA contaminant 7500 began Apr 2024 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2024 Resolved

Recent enforcement actions

  • EPA/federal action · EIA Sep 2025
  • EPA/federal action · EIA Sep 2025
  • EPA/federal action · EOX Aug 2025
  • EPA/federal action · EOX Jul 2025
  • EPA/federal action · EOX Jun 2025
  • EPA/federal action · EIA Jun 2025
  • EPA/federal action · EIA Jun 2025
  • EPA/federal action · EOX Jun 2025

This profile is built from EPA public records for system 090400057 — 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.