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States → Iowa

OELWEIN MUNICIPAL WATER WORKS

PWS ID: IA3353088 · OELWEIN, Iowa 50662

PFAS Detected

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

Population Served
5,920
Total Violations
39
Health-Based Violations
9
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
2,900
County
Fayette
School/Daycare
No
MCL Violations
9
Monitoring Violations
25
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Tetrachloroethylene MR 16 1994
Coliform (TCR) MCL 9 1995
Nitrate MR 8 2014
Lead and Copper Rule MR 1 1992

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 3 of 90 samples detected PFAS.

Contaminant Date Result MRL Status
PFBS 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 6/2/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 6/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 6/2/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 6/2/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 6/2/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 6/2/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 6/2/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFTA 6/2/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFUnA 6/2/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFPeS 6/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 6/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 6/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 6/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 6/2/2025 28.0000 µg/L 9 µg/L Detected
PFTrDA 6/2/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 6/2/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 6/2/2025 <0.006 µg/L 0.006 µg/L Not Detected
11Cl-PF3OUdS 6/2/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 6/2/2025 27.0000 µg/L 9 µg/L Detected
PFTA 6/2/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 6/2/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 6/2/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 6/2/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFHxS 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 6/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 6/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 6/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 6/2/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 6/2/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFMPA 6/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 6/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 6/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 6/2/2025 <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.