PlainWater
States → Arizona

EPCOR - SAN TAN ANTHEM

PWS ID: AZ0411136 · SAN TAN VALLEY, Arizona 85143

PFAS Detected

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

Population Served
10,362
Total Violations
55
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
4,318
County
Pinal
School/Daycare
No
MCL Violations
0
Monitoring Violations
52
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 14 2024
Nitrate MR 9 2023
Lead and Copper Rule MR 8 2017
TTHM MR 6 2019
Total Haloacetic Acids (HAA5) MR 6 2019
Revised Total Coliform Rule MON 5 2021
Coliform (TCR) MR 4 2010
Public Notice Other 2 2022

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 16 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
4:2 FTS 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 9/8/2025 110.0000 µg/L 9 µg/L Detected
PFBS 9/8/2025 0.0240 µg/L 0.003 µg/L Detected
PFHpS 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/8/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 9/8/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 9/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 9/8/2025 0.0390 µg/L 0.003 µg/L Detected
PFHpA 9/8/2025 0.0046 µg/L 0.003 µg/L Detected
PFHxS 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/8/2025 0.0190 µg/L 0.004 µg/L Detected
PFDA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 9/8/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFHxA 9/8/2025 0.0210 µg/L 0.003 µg/L Detected
PFEESA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 9/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 9/8/2025 0.0054 µg/L 0.005 µg/L Detected
HFPO-DA 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/8/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/8/2025 <0.002 µg/L 0.002 µg/L Not Detected
NFDHA 9/8/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFUnA 9/8/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 9/8/2025 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 9/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/8/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 9/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
HFPO-DA 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/8/2025 <0.003 µg/L 0.003 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.