ZIP Code 85704
Low Level7
PFAS Detected
0
Above EPA Limits
4
Water Systems
39%
Highest % of MCL
METROPOLITAN DWID
AZ0410076 Low LevelWater Type
Groundwater
PFAS Detected
3
Above MCL
0
State
Arizona
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFHxS Perfluorohexane sulfonic acid | 3.90ppt | 39% of limit
| 10 ppt | Below limit |
lithium | 18300.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.80ppt | No federal limit | — | Unregulated |
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 |
ORO VALLEY WATER UTILITY
AZ0410164 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Arizona
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 19000.00ppt | No federal limit | — | Unregulated |
MISSION PALMS APARTMENTS
AZ0420570 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Arizona
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 13400.00ppt | No federal limit | — | Unregulated |
Note: ZIP code 85704 is served by 4 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.