ZIP Code 85719
Low Level6
PFAS Detected
0
Above EPA Limits
2
Water Systems
N/A
Highest % of MCL
TUCSON CITY OF
AZ0410112 Low LevelWater Type
Groundwater
PFAS Detected
2
Above MCL
0
State
Arizona
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 63700.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 8.10ppt | No federal limit | — | Unregulated |
UNIVERSITY OF ARIZONA
AZ0420423 Low LevelWater Type
Groundwater
PFAS Detected
4
Above MCL
0
State
Arizona
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 190000.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 7.40ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 7.20ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 6.40ppt | No federal limit | — | Unregulated |
Note: ZIP code 85719 is served by 2 separate water utilities.
Results above show data for each system independently.
Data source: EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5) — January 2026 release.
UCMR 5 tested ~10,000 public water systems serving more than 25 people between 2023-2025 for 29 PFAS compounds.
Detection values represent the highest single-sample result measured at entry points to the distribution system.