PlainWater
States → Iowa

GRINNELL WATER DEPARTMENT

PWS ID: IA7930008 · GRINNELL, Iowa 50112-1947

PFAS Detected

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

Population Served
9,564
Total Violations
87
Health-Based Violations
48
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
3,600
County
Poweshiek
School/Daycare
No
MCL Violations
48
Monitoring Violations
25
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MCL 24 2025
Gross Alpha, Excl. Radon and U MCL 21 2025
Gross Alpha, Excl. Radon and U MR 11 2023
Coliform (TCR) MR 9 1992
Combined Radium (-226 and -228) MR 5 2023
Public Notice Other 3 2024
Coliform (TCR) MCL 3 2003

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
9Cl-PF3ONS 8/6/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 8/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 8/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 8/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 8/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 8/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/6/2024 <0.02 µg/L 0.02 µg/L Not Detected
11Cl-PF3OUdS 8/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 8/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/6/2024 130.0000 µg/L 9 µg/L Detected
PFMBA 8/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 8/6/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/6/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFUnA 8/6/2024 <0.002 µg/L 0.002 µg/L Not Detected
NMeFOSAA 8/6/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFHpA 8/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 8/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 8/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 8/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 8/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 8/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 2/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 2/12/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 2/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 2/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 2/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 2/12/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFTrDA 2/12/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFNA 2/12/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 2/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 2/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 2/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 2/12/2024 140.0000 µg/L 9 µg/L Detected
NMeFOSAA 2/12/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFUnA 2/12/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFMPA 2/12/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 2/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 2/12/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 2/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 2/12/2024 <0.008 µg/L 0.008 µg/L Not Detected
8:2 FTS 2/12/2024 <0.005 µg/L 0.005 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.