PlainWater
States → North Carolina

CARY, TOWN OF

PWS ID: NC0392020 · CARY, North Carolina 27512

PFAS Detected

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

Population Served
224,000
Total Violations
69
Health-Based Violations
15
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
60,391
County
Wake
School/Daycare
No
MCL Violations
15
Monitoring Violations
32
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 19 2014
Chloramine MR 10 2014
Revised Total Coliform Rule MCL 8 2023
Coliform (TCR) MCL 7 2006
Public Notice Other 7 2023
Consumer Confidence Rule Other 4 2001
Asbestos MR 3 2002

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 13 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
NEtFOSAA 8/5/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 8/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/5/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 8/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 8/5/2025 <0.007 µg/L 0.007 µg/L Not Detected
NMeFOSAA 8/5/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFEESA 8/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 8/5/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFHxA 8/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/5/2025 0.0043 µg/L 0.003 µg/L Detected
PFHpA 8/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/5/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/5/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/5/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 8/5/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 8/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 8/5/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/5/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/5/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 8/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/5/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/5/2025 0.0057 µg/L 0.005 µg/L Detected
PFMPA 8/5/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/5/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 8/5/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/5/2025 <9 µg/L 9 µg/L Not Detected
PFTA 5/6/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 5/6/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 5/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/6/2025 <0.006 µg/L 0.006 µg/L Not Detected
9Cl-PF3ONS 5/6/2025 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 5/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/6/2025 0.0073 µg/L 0.005 µg/L Detected
HFPO-DA 5/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/6/2025 0.0034 µg/L 0.003 µg/L Detected
NFDHA 5/6/2025 <0.02 µg/L 0.02 µg/L Not Detected
8:2 FTS 5/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 5/6/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 5/6/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 5/6/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 5/6/2025 0.0066 µg/L 0.003 µg/L 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.