PWSID
AZ0410035
State
Arizona
City
TUCSON
Population served
3,209
Primary source
Groundwater
Score history
No change since tracking began Jun 18, 2026.
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 May 2025). Levels in parts per trillion (ppt).
Lithium
34,000 ppt
limit —
Violations & enforcement
107
Violations on record
0
Unaddressed
4
Health-based
64
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement May 2022. Official EPA record →
Recent enforcement actions
- State action · SOX May 2022
- State action · SIA May 2022
- State action · SOX Aug 2021
- State action · SIA Jan 2021
- State action · SOX Jan 2021
- State action · SIE Dec 2020
- State action · SIA Dec 2020
- State action · SIA Nov 2019
This profile is built from EPA public records for system AZ0410035 — 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.