PlainWater
States → Missouri

HERCULANEUM PWS

PWS ID: MO6010359 · HERCULANEUM, Missouri 63048-0000

PFAS Detected

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

Population Served
4,227
Total Violations
13
Health-Based Violations
3
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,940
County
Jefferson
School/Daycare
No
MCL Violations
3
Monitoring Violations
7
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 4 2001
Coliform (TCR) MCL 3 1998
Stage 2 Disinfectants and Disinfection Byproducts Rule MR 2 2008
Lead and Copper Rule MR 1 2006
Consumer Confidence Rule Other 1 2003

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 13 of 240 samples detected PFAS.

Contaminant Date Result MRL Status
PFBS 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/9/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/9/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 9/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
lithium 9/9/2024 19.9000 µg/L 9 µg/L Detected
PFHpS 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/9/2024 <0.02 µg/L 0.02 µg/L Not Detected
HFPO-DA 9/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 9/9/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 9/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/9/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 9/9/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFPeA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/9/2024 0.0079 µg/L 0.005 µg/L Detected
PFMBA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/9/2024 0.0075 µg/L 0.005 µg/L Detected
9Cl-PF3ONS 9/9/2024 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 9/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 9/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/9/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 9/9/2024 <0.007 µg/L 0.007 µg/L Not Detected
NMeFOSAA 9/9/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 9/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 9/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 9/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 9/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFEESA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/9/2024 <0.02 µg/L 0.02 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.