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States → Georgia

COBB COUNTY

PWS ID: GA0670003 · MARIETTA, Georgia 30090

PFAS Detected

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

Population Served
695,000
Total Violations
6
Health-Based Violations
2
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
183,518
County
Cobb
School/Daycare
No
MCL Violations
2
Monitoring Violations
2
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 2 1992
Consumer Confidence Rule Other 2 2007
Coliform (TCR) MR 2 1992

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 6 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFEESA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/7/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFMPA 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTrDA 8/7/2023 <0.007 µg/L 0.007 µg/L Not Detected
8:2 FTS 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 8/7/2023 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 8/7/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFDA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/7/2023 <9 µg/L 9 µg/L Not Detected
PFOA 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 8/7/2023 0.0031 µg/L 0.003 µg/L Detected
PFOS 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 8/7/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/7/2023 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/7/2023 0.0065 µg/L 0.005 µg/L Detected
8:2 FTS 5/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/6/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFBS 5/6/2024 0.0035 µg/L 0.003 µg/L Detected
11Cl-PF3OUdS 5/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 5/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
NEtFOSAA 5/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/6/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFMPA 5/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 5/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 5/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 5/6/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/6/2024 <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.