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States → Iowa

WEBSTER CITY WATER SUPPLY

PWS ID: IA4063094 · WEBSTER CITY, Iowa 50595

PFAS Detected

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

Population Served
7,825
Total Violations
38
Health-Based Violations
13
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
3,748
County
Hamilton
School/Daycare
No
MCL Violations
13
Monitoring Violations
20
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 12 2000
Arsenic MR 8 2001
Lead and Copper Rule MR 7 1992
E. COLI MR 5 2020
Arsenic MCL 1 1983

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 6 of 180 samples detected PFAS.

Contaminant Date Result MRL Status
PFDA 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/9/2024 <0.003 µg/L 0.003 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 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 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
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
PFEESA 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
HFPO-DA 9/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 9/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 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
PFBS 9/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 9/9/2024 160.0000 µg/L 9 µg/L 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
NEtFOSAA 9/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 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
PFHpS 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
9Cl-PF3ONS 9/9/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHpS 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/11/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 9/11/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/11/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/11/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/11/2024 <0.02 µg/L 0.02 µg/L Not Detected
HFPO-DA 9/11/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 9/11/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/11/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFHxS 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/11/2024 <0.008 µg/L 0.008 µg/L Not Detected
ADONA 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 9/11/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/11/2024 <0.006 µg/L 0.006 µg/L Not Detected
lithium 9/11/2024 160.0000 µg/L 9 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.