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States → Wisconsin

NEENAH WATERWORKS

PWS ID: WI4710348 · NEENAH, Wisconsin 54956

Population Served
27,506
Total Violations
46
Health-Based Violations
13
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
9,963
County
Winnebago
School/Daycare
No
MCL Violations
6
Monitoring Violations
33
Treatment Tech Violations
7

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
CARBON, TOTAL MR 16 2011
Lead and Copper Rule MR 9 2008
Lead and Copper Rule TT 7 2009
Coliform (TCR) MCL 6 2013
Coliform (TCR) MR 4 2007
Chloramine MR 4 2007

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFPeS 8/2/2023 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 8/2/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFMPA 8/2/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 8/2/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 8/2/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/2/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/2/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/2/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 8/2/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/2/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/2/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/2/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/2/2023 <0.005 µg/L 0.005 µg/L Not Detected
NEtFOSAA 8/2/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/2/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/2/2023 <0.008 µg/L 0.008 µg/L Not Detected
6:2 FTS 8/2/2023 <0.005 µg/L 0.005 µg/L Not Detected
lithium 8/2/2023 <9 µg/L 9 µg/L Not Detected
PFHpS 8/2/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/2/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFMBA 8/2/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/2/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/2/2023 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 8/2/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 8/2/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxS 8/2/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/2/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/2/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 8/2/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/2/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/9/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/9/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 5/9/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 5/9/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 5/9/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFOA 5/9/2023 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 5/9/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 5/9/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFUnA 5/9/2023 <0.002 µg/L 0.002 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.