PlainWater
States → Arizona

ORO VALLEY WATER UTILITY

PWS ID: AZ0410164 · ORO VALLEY, Arizona 85737

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
42,316
Total Violations
2,191
Health-Based Violations
11
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
18,481
County
Pima
School/Daycare
No
MCL Violations
11
Monitoring Violations
2,178
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Xylenes, Total MR 59 2017
DICHLOROMETHANE MR 59 2017
1,2-DIBROMO-3-CHLOROPROPANE MR 55 2019
Thallium, Total MR 44 2007
p-Dichlorobenzene MR 43 2017
Dalapon MR 39 2019
Di(2-ethylhexyl) adipate MR 39 2019
OXAMYL MR 39 2019
Simazine MR 39 2019
Toluene MR 39 2017
Picloram MR 39 2019
Hexachlorocyclopentadiene MR 39 2019
Carbofuran MR 39 2019
Atrazine MR 39 2019
LASSO MR 39 2019
Ethylbenzene MR 39 2017
2,4,5-TP MR 39 2019
HEXACHLOROBENZENE MR 39 2019
Chlordane MR 39 2019
Styrene MR 39 2017
o-Dichlorobenzene MR 39 2017
Diquat MR 39 2019
Endothall MR 39 2019
trans-1,2-Dichloroethylene MR 39 2017
1,1,1-Trichloroethane MR 39 2017
1,2-Dichloropropane MR 39 2017
Di(2-ethylhexyl) phthalate MR 39 2019
1,1,2-Trichloroethane MR 39 2017
Dinoseb MR 39 2019
2,4-D MR 39 2019

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 815 samples detected PFAS.

Contaminant Date Result MRL Status
lithium 9/4/2024 <9 µg/L 9 µg/L Not Detected
PFHpA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/4/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFOA 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/4/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 9/4/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFOS 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/4/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 9/4/2024 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 9/4/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHpS 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
NEtFOSAA 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/4/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 9/4/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/4/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 9/4/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFPeA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/4/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFOA 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.