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States → Iowa

DYERSVILLE MUNICIPAL WATER CO

PWS ID: IA3130091 · DYERSVILLE, Iowa 52040

PFAS Detected

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

Population Served
4,477
Total Violations
268
Health-Based Violations
153
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
2,085
County
Dubuque
School/Daycare
No
MCL Violations
153
Monitoring Violations
110
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MCL 136 2016
Nitrate MR 42 1996
Styrene MR 20 1993
Ethylbenzene MR 20 1993
Nitrate MCL 17 1995
Xylenes, Total MR 15 1993
Combined Radium (-226 and -228) MR 12 2021
Lead and Copper Rule MR 1 1992

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
HFPO-DA 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 6/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 6/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
lithium 6/5/2024 43.0000 µg/L 9 µg/L Detected
PFHxS 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 6/5/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFTrDA 6/5/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 6/5/2024 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 6/5/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHpA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 6/5/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 6/5/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFMPA 6/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 6/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 6/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 6/5/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFBA 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 6/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 6/5/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFTA 6/5/2024 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 6/5/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFHxS 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 6/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 6/5/2024 78.0000 µg/L 9 µg/L Detected
PFOS 6/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 6/5/2024 <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.