Official PFAS Records

Wisconsin PFAS Watchlist

Official EPA UCMR 5 PFAS monitoring records for public water systems in Wisconsin. 143 water systems with qualifying official records.

Source retrieved: April 20, 2026 · EPA UCMR 5

Monitoring results are not compliance determinations. Missing records do not establish absence of PFAS. Methodology

143

Systems with records

25,807

Total records

276

Official detections

Water System	PWSID	Analytes in records	Records	Detections
Madison Water Utility Madison	WI1130224	PFTeDAPFHxANMeFOSAAPFTrDAPFHpA+24	1160	6 detected	View
Green Bay Waterworks Green Bay	WI4050356	PFHpAPFHxSPFNAPFOSPFOA+24	116	0	View
Racine Waterworks Racine	WI2520062	NMeFOSAA6:2FTSPFMPA8:2FTS4:2FTS+24	116	0	View
Appleton Waterworks Menasha	WI4450333	PFTeDAPFOSPFOAPFDAPFDoA+24	116	1 detected	View
Waukesha Water Utility Waukesha	WI2680238	DONAPFMBAPFPeSPFTeDAPFUnA+24	406	0	View
Eau Claire Waterworks Eau Claire	WI6180230	NFDHAPFPeADONAPFMBAPFEESA+24	58	3 detected	View
Janesville Water Utility Janesville	WI1540127	PFNA4:2FTSPFBADONA9Cl-PF3ONS+24	174	0	View
West Allis Waterworks West Allis	WI2410595	PFMPANMeFOSAA8:2FTSPFPeAPFMBA+24	116	0	View
Oshkosh Waterworks Oshkosh	WI4710457	PFOSPFOAPFDAPFDoAPFHxA+24	116	0	View
La Crosse Waterworks La Crosse	WI6320309	NMeFOSAANEtFOSAA4:2FTSDONAPFPeA+24	580	32 detected	View
Wauwatosa Waterworks Wauwatosa	WI2410596	4:2FTS6:2FTSPFBAHFPO-DADONA+24	116	0	View
Fond Du Lac Waterworks Fond Du Lac	WI4200469	PFDAPFDoAPFHxAPFUnA11Cl-PF3OUdS+24	232	0	View
Wausau Waterworks Wausau	WI7370102	PFHpAPFMPA8:2FTS4:2FTS9Cl-PF3ONS+24	116	1 detected	View
City of Beloit Beloit	WI1540112	4:2FTSDONAPFTrDANEtFOSAANMeFOSAA+24	406	1 detected	View
North Shore Water Commission Glendale	WI2413515	HFPO-DADONA9Cl-PF3ONSPFUnAPFTrDA+24	116	0	View
Manitowoc Waterworks Manitowoc	WI4360364	PFNAPFOSPFOAPFPeA6:2FTS+24	116	0	View
Sun Prairie Utilities Sun Prairie	WI1130258	PFBAPFOA6:2FTSHFPO-DADONA+24	406	0	View
Oak Creek Waterworks Oak Creek	WI2410172	NFDHAHFPO-DAPFBA6:2FTS4:2FTS+24	116	0	View
Brookfield Water Utility Brookfield	WI2680253	NFDHANMeFOSAANEtFOSAAPFTrDAPFTeDA+24	506	13 detected	View
New Berlin Water Utility New Berlin	WI2680217	PFHpSPFPeSNFDHAPFBSPFMBA+24	116	0	View
Neenah Waterworks Neenah	WI4710348	PFEESA9Cl-PF3ONSDONAPFMPA11Cl-PF3OUdS+24	116	0	View
De Pere Waterworks Sa 1 De Pere	WI4050453	PFHxSPFDoAHFPO-DADONA9Cl-PF3ONS+24	116	0	View
Fitchburg Utility Dist 1 Fitchburg	WI1130231	PFOSPFBAHFPO-DADONA9Cl-PF3ONS+24	232	0	View
Watertown Waterworks Watertown	WI1280044	PFUnAPFMPAPFNA8:2FTS11Cl-PF3OUdS+24	174	0	View
Middleton Waterworks Middleton	WI1130242	PFHxAPFDoAPFUnA11Cl-PF3OUdS9Cl-PF3ONS+24	348	0	View
Franklin Water Utility Franklin	WI2410563	PFBSPFOA11Cl-PF3OUdSPFUnAPFHxA+24	116	0	View
Village of Caledonia Water Utility Caledonia	WI2520184	HFPO-DAPFOA8:2FTSPFHpAPFOS+11	16	0	View
Grand Chute Tn San Dist 1 Grand Chute	WI4450429	PFDoAPFHxAPFUnA11Cl-PF3OUdSPFBS+24	93	0	View
Howard Waterworks Green Bay	WI4050468	PFHxSPFBA4:2FTS8:2FTSPFMPA+24	186	0	View
Germantown Water Utility Germantown	WI2670105	HFPO-DAPFOANMeFOSAANEtFOSAANFDHA+24	101	0	View
Cudahy Waterworks Cudahy	WI2410169	PFEESAPFHpS11Cl-PF3OUdSPFDoAPFHxA+24	116	0	View
Fox Crossing Utilities West Neenah	WI4710358	PFDAPFOAPFOSPFHxAPFNA+24	232	0	View
Onalaska Waterworks Onalaska	WI6320327	PFTeDANEtFOSAANMeFOSAA9Cl-PF3ONSPFHpS+24	232	2 detected	View
Ashwaubenon Waterworks Green Bay	WI4050456	PFHxAPFMPAPFEESADONA8:2FTS+24	116	0	View
Kaukauna Utilities Kaukauna	WI4450336	NMeFOSAAPFMPAPFPeAPFMBAPFEESA+24	174	0	View
Bellevue Waterworks Green Bay	WI4050459	11Cl-PF3OUdSPFOSPFNAPFHxSPFHpA+24	116	0	View
Beaver Dam Water Utility Beaver Dam	WI1140059	PFDoADONA9Cl-PF3ONS11Cl-PF3OUdSHFPO-DA+24	58	0	View
Weston Municipal Utilities Weston	WI7370163	9Cl-PF3ONSPFMBANFDHADONAPFBS+24	377	29 detected	View
Menomonie Waterworks Menomonie	WI6170268	PFUnANMeFOSAADONAPFOAPFDA+24	174	0	View
Hartford Waterworks Hartford	WI2670110	HFPO-DA11Cl-PF3OUdSPFMPANMeFOSAA6:2FTS+24	97	10 detected	View
Oconomowoc Waterworks Oconomowoc	WI2680227	PFUnAPFHxAPFDoAPFDAPFOA+24	232	4 detected	View
Menasha Elec & Water Util Menasha	WI4710334	PFTrDANMeFOSAAPFMPAPFBS8:2FTS+24	116	0	View
Waunakee Waterworks Waunakee	WI1130265	11Cl-PF3OUdS9Cl-PF3ONSDONAHFPO-DAPFBA+24	232	0	View
Greendale Waterworks Greendale	WI2410571	PFTeDAPFPeSNFDHAPFEESANMeFOSAA+24	116	0	View
Whitefish Bay Waterworks Whitefish Bay	WI2410597	PFMPAPFPeAPFMBAPFEESANFDHA+24	116	0	View
Verona Waterworks Verona	WI1130259	PFMPA8:2FTSPFHpSPFHxANMeFOSAA+24	290	3 detected	View
Allouez Waterworks Green Bay	WI4050455	HFPO-DA9Cl-PF3ONSPFOSPFHxSPFNA+24	116	0	View
Shorewood Waterworks Shorewood	WI2410607	PFEESAPFTeDA8:2FTSPFPeANMeFOSAA+24	116	0	View
Chippewa Falls Waterworks Chippewa Falls	WI6090456	NMeFOSAAPFHpSPFPeSNFDHAPFEESA+24	116	1 detected	View
Stoughton Waterworks Stoughton	WI1130078	PFDoAPFTrDAPFDAPFOAPFOS+24	232	2 detected	View
Darboy Sanitary Dist 1 Appleton	WI4450117	PFTrDAPFTeDAPFNAPFHpAPFPeA+24	116	0	View
Glendale Waterworks Glendale	WI2410168	PFMBAPFHxA11Cl-PF3OUdSPFDAPFDoA+24	84	0	View
Port Washington Waterworks Port Washington	WI2460054	9Cl-PF3ONSPFDoA4:2FTSPFUnADONA+24	116	0	View
Brown Deer Waterworks Brown Deer	WI2410556	PFUnAPFHxSPFDoAPFTeDAPFTrDA+24	116	0	View
Baraboo Waterworks Baraboo	WI1570085	NEtFOSAAPFTeDAPFHpAPFBS6:2FTS+24	290	0	View
Fort Atkinson Waterworks Fort Atkinson	WI1280103	PFBA9Cl-PF3ONSPFNAPFMPAPFUnA+24	232	0	View
Grafton Waterworks Grafton	WI2460111	NFDHAPFPeAPFMBAPFEESAPFPeS+24	348	0	View
Platteville Waterworks Platteville	WI1220115	NEtFOSAAPFTeDANMeFOSAAPFTrDAPFPeS+24	174	0	View
Little Chute Waterworks Little Chute	WI4450338	4:2FTSPFPeSNMeFOSAA8:2FTS6:2FTS+24	174	0	View
Cedarburg L & W Commission Cedarburg	WI2460108	HFPO-DAPFHxAPFDAPFOAPFOS+24	232	0	View
Sussex Village Hall & Water Utility Sussex	WI2680233	PFBAPFDANMeFOSAAPFBSPFHpA+24	232	0	View
Greenville Utilities Vil of Greenville	WI4450278	PFMBAPFPeANFDHANEtFOSAAPFTrDA+24	232	0	View
Two Rivers Waterworks Two Rivers	WI4360436	PFTrDAPFTeDAHFPO-DANMeFOSAANEtFOSAA+24	116	0	View
Oregon Waterworks Oregon	WI1130251	PFNAPFMBAPFPeSPFMPAPFPeA+24	174	0	View
Mequon Water Utility Mequon	WI2460112	PFDoAPFTrDAPFMPA11Cl-PF3OUdSPFHpS+24	232	0	View
Marinette Waterworks Marinette	WI4380395	NEtFOSAAPFHpAPFTeDADONANFDHA+24	116	0	View
Fox Crossing Utilities East Neenah	WI4710453	DONAPFMBAPFPeA8:2FTS4:2FTS+24	174	0	View
Monroe Waterworks Monroe	WI1230078	PFMBAPFBSPFHxSPFTeDAPFOS+24	290	0	View
Deforest Waterworks Deforest	WI1130221	PFTrDAPFMPAPFPeAPFMBAPFEESA+24	232	0	View
Portage Waterworks Portage	WI1110039	PFDA8:2FTSPFPeANMeFOSAANEtFOSAA+24	116	2 detected	View
Holmen Waterworks Holmen	WI6320306	PFUnAPFTrDA4:2FTS8:2FTSPFMPA+24	203	1 detected	View
Sparta Waterworks Sparta	WI6420297	PFOAPFOSPFNA8:2FTSPFHxS+24	290	0	View
Fort Mccoy North Post Fort Mccoy	WI6420302	NMeFOSAAPFDAPFEESANFDHAPFPeS+24	133	0	View
Reedsburg Waterworks Reedsburg	WI1570102	PFTrDAPFMBAPFTeDAPFUnANEtFOSAA+24	163	2 detected	View
Burlington Waterworks Burlington	WI2520177	PFBSPFMBAPFPeSPFEESANFDHA+24	290	0	View
Sturgeon Bay Waterworks Sturgeon Bay	WI4150526	9Cl-PF3ONS4:2FTSHFPO-DAPFDA6:2FTS+24	210	6 detected	View
Mcfarland Waterworks Mc Farland	WI1130241	PFHpSPFTrDANEtFOSAAPFPeSNFDHA+24	174	2 detected	View
Merrill Waterworks Merrill	WI7350123	PFDAPFOAPFTeDANEtFOSAAPFDoA+24	116	0	View
Altoona Waterworks Altoona	WI6180280	NMeFOSAAPFNAHFPO-DAPFOAPFDA+24	348	0	View
Cottage Grove Waterworks Cottage Grove	WI1130218	PFNAPFOSPFHpAPFDoA9Cl-PF3ONS+24	174	0	View
Tomah Waterworks Tomah	WI6420254	PFHpSPFUnAPFDoAPFDAPFOA+24	290	7 detected	View
Rice Lake Waterworks Rice Lake	WI6030138	DONAPFMPAPFPeAPFMBAPFEESA+24	232	0	View
Plymouth Utilities Plymouth	WI4600446	11Cl-PF3OUdS4:2FTS6:2FTSPFBAHFPO-DA+24	125	0	View
Sheboygan Falls Utilities Sheboygan Falls	WI4600455	PFHpAPFHxSPFOSPFOAPFDA+24	116	0	View
Pewaukee City Water and Sewer Utility Pewaukee	WI2680214	PFPeAPFEESA6:2FTS4:2FTS8:2FTS+24	276	30 detected	View
Monona Waterworks Monona	WI1130245	PFPeA8:2FTS6:2FTSHFPO-DADONA+24	87	8 detected	View
Pewaukee Village Waterworks Pewaukee	WI2680229	PFDAPFEESAPFBSPFHxSPFNA+24	145	0	View
Muskego Water Utility Muskego	WI2681741	PFDoANEtFOSAA	2	0	View
Waupun Utilities Waupun	WI1140131	PFPeSPFNAPFOA11Cl-PF3OUdSPFDoA+24	58	0	View
Jefferson Waterworks Jefferson	WI1280104	PFMBAPFPeAPFMPAPFEESA4:2FTS+24	174	0	View
Jackson Waterworks Jackson	WI2670111	PFPeA11Cl-PF3OUdS9Cl-PF3ONSDONAHFPO-DA+24	232	0	View
Antigo Waterworks Antigo	WI7340086	PFMBA4:2FTS8:2FTSPFMPAPFPeA+8	13	0	View
Mt Horeb Waterworks Mount Horeb	WI1130247	HFPO-DAPFTeDANEtFOSAAPFTrDANMeFOSAA+24	232	4 detected	View
Ripon Water Utility Ripon	WI4200476	PFOSDONA9Cl-PF3ONS11Cl-PF3OUdSPFHxA+24	232	0	View
Kimberly Waterworks Kimberly	WI4450342	PFNAPFHxAPFDoAPFDAPFOA+24	174	0	View
New London Waterworks New London	WI4690398	NFDHAPFHxAPFDAPFOAPFOS+24	406	2 detected	View
Fox Point Waterworks Fox Point	WI2410584	9Cl-PF3ONSDONAHFPO-DA6:2FTS8:2FTS+24	116	0	View
Village of Lake Hallie Waterworks Chippewa Falls	WI6090849	HFPO-DANFDHAPFPeSPFMBA9Cl-PF3ONS+24	232	0	View
Town of Brookfield San Dist 4 Brookfield	WI2680239	PFTrDANEtFOSAANMeFOSAADONA8:2FTS+24	87	1 detected	View
Rib Mountain Water Utility	WI7370660	PFDoA8:2FTSPFHxA9Cl-PF3ONSDONA+24	146	11 detected	View
Lake Mills Waterworks	WI1280108	PFHxANMeFOSAAPFTrDAHFPO-DADONA+24	174	0	View
Waupaca Waterworks Waupaca	WI4690402	NMeFOSAA4:2FTS8:2FTSPFMPAPFPeA+24	348	9 detected	View
Prairie Du Chien Waterworks Prairie Du Chien	WI6120250	PFHpA8:2FTS6:2FTSPFBAPFUnA+24	87	3 detected	View
Evansville Waterworks Evansville	WI1540047	9Cl-PF3ONSPFUnAPFHxAPFDoAPFOA+24	116	0	View
Slinger Water Utility Slinger	WI2670116	4:2FTS8:2FTS9Cl-PF3ONSPFPeA11Cl-PF3OUdS+24	145	5 detected	View
Milton Waterworks Milton	WI1540130	NEtFOSAANFDHAPFDAPFOAPFOS+24	232	0	View
Berlin Waterworks Berlin	WI4240216	PFOA11Cl-PF3OUdSPFHpSPFMBAPFEESA+24	174	0	View
Edgerton Waterworks Edgerton	WI1540119	PFUnAPFHxAPFBSPFDoA9Cl-PF3ONS+24	174	0	View
North Fond Du Lac Waterworks North Fond Du Lac	WI4200405	PFBSPFHpA11Cl-PF3OUdSPFNAPFHpS+24	58	0	View
Columbus Utilities Columbus	WI1110038	PFPeANEtFOSAAPFPeSNFDHA6:2FTS+24	108	0	View
Mayville Waterworks Mayville	WI1140057	PFMBAPFEESANFDHAPFPeSPFHpS+24	232	0	View
Richland Center Waterworks Richland Center	WI1530068	11Cl-PF3OUdSPFUnAPFHxAPFDoAPFDA+24	174	0	View
West Salem Waterworks West Salem	WI6320334	PFBANFDHAPFEESAPFMBAPFPeA+24	174	0	View
Clintonville Utilities Clintonville	WI4690391	NEtFOSAANMeFOSAAPFTeDAPFBSHFPO-DA+24	174	0	View
Oconto Waterworks Oconto	WI4430495	PFHpS6:2FTS9Cl-PF3ONS11Cl-PF3OUdSPFUnA+24	87	0	View
Dodgeville Waterworks Dodgeville	WI1250079	PFEESAPFNAPFPeAPFHpSPFPeS+24	116	0	View
Kewaskum Waterworks Kewaskum	WI2670112	PFPeA4:2FTSNFDHANEtFOSAAPFMBA+24	232	6 detected	View
Saukville Waterworks Saukville	WI2460134	PFUnAPFHpAPFMPAPFPeAPFMBA+24	290	28 detected	View
Cross Plains Waterworks Cross Plains	WI1130219	PFHpAPFBSPFHxSPFPeSPFNA+24	174	0	View
Pulaski Waterworks Pulaski	WI4050355	PFHxAPFUnA11Cl-PF3OUdS9Cl-PF3ONSDONA+24	116	0	View
Prairie Du Sac Waterworks Prairie Du Sac	WI1570100	DONAPFHpAPFBSNMeFOSAANEtFOSAA+24	116	0	View
Kiel Waterworks Kiel	WI4360427	PFOSHFPO-DADONA11Cl-PF3OUdS9Cl-PF3ONS+24	232	0	View
Lancaster Waterworks Lancaster	WI1220107	DONAPFMBAPFTeDAPFDAPFOA+24	87	0	View
Marshall Waterworks Marshall	WI1130237	PFTeDA9Cl-PF3ONSPFTrDANEtFOSAANMeFOSAA+24	174	0	View
Waupun Correctional Inst Waupun	WI1140142	PFNAPFOSPFOAPFDA11Cl-PF3OUdS+24	116	0	View
Horicon Waterworks Horicon	WI1140146	DONAPFOSNEtFOSAAPFBAPFMBA+24	174	0	View
Bloomer Waterworks Bloomer	WI6090448	6:2FTSNMeFOSAA4:2FTSPFTeDAPFHxS+24	116	0	View
Omro Waterworks Omro	WI4710357	PFPeAPFTeDAPFMBAPFBAPFMPA+24	174	0	View
Combined Locks Waterworks Combined Locks	WI4450409	4:2FTSPFPeSPFHpSPFBSPFMPA+24	58	0	View
Black River Falls Waterworks Black River Falls	WI6270244	PFDAPFUnAPFHxAPFDoAPFOA+24	232	2 detected	View
Seymour Waterworks Seymour	WI4450337	11Cl-PF3OUdSPFOSPFOAPFDAPFDoA+24	116	0	View
Waterloo Waterworks Waterloo	WI1280115	PFHxA9Cl-PF3ONSHFPO-DAPFUnAPFDoA+24	87	0	View
Stanley Waterworks Stanley	WI6090462	PFOAPFBA6:2FTS4:2FTS8:2FTS+24	174	0	View
Barron Light & Water Dept Barron	WI6030125	PFTrDAPFHxSNMeFOSAAPFOSPFDA+24	232	0	View
Peshtigo Waterworks Peshtigo	WI4380442	PFNAPFHxAPFDoA6:2FTSPFMBA+24	174	0	View
Tomahawk Waterworks Tomahawk	WI7350127	PFHpANMeFOSAAHFPO-DA6:2FTSPFBS+24	116	20 detected	View
Denmark Waterworks Denmark	WI4050351	PFMBAPFPeAPFMPA8:2FTS4:2FTS+24	116	0	View
Schofield Waterworks Schofield	WI7370162	PFEESAPFUnAPFHxAPFDoAPFDA+24	116	16 detected	View
Clinton Waterworks Clinton	WI1540114	6:2FTSPFTeDAPFMPAPFPeAPFMBA+24	116	0	View
Palmyra Waterworks Palmyra	WI1280112	4:2FTSPFOAPFOSPFDoAPFHxA+24	116	3 detected	View
Shullsburg Waterworks Shullsburg	WI1330076	PFNAPFMBANMeFOSAANEtFOSAAPFTrDA+24	116	0	View
Arena Waterworks Arena	WI1250073	PFMPAPFDoAPFHxAPFUnA11Cl-PF3OUdS+24	58	0	View
Bloomington Waterworks Bloomington	WI1220085	PFBSPFMPAPFPeAPFMBAPFEESA+24	58	0	View

Source: EPA UCMR 5 Occurrence Data · Methodology

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