State system profile

PFAS in Minnesota drinking water

Active community water systems with complete EPA UCMR 5 monitoring, summarized using yearly averages from results available through January 15, 2026.

Source EPA UCMR 5 Period 2023–2025 Systems included 178 Release ucmr5-2026-01-15-analysis-v0.2
Systems with a yearly average at or above an EPA-based study benchmark
5.6%10 of 178 active community water systems

All 178 systems had enough required samples to calculate a yearly average. 10 had at least one yearly average at or above a study benchmark; 168 did not.

EPA-based study benchmark: the unrounded cutoff this research uses to reproduce EPA’s January 2026 technical-assistance classification around the April 2024 federal levels. It is not a current standard or compliance finding and cannot determine household exposure or health risk.

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Compound summary

System counts in Minnesota

Each count shows how many included water systems had a yearly average at or above the named study benchmark.

Community water systems with yearly averages at or above the EPA-based study benchmarks used in the January 2026 research release for Minnesota.
Study benchmarkSystems at or above benchmarkWater systems includedPercent
PFOA: 4.05 ppt study benchmark (reproduces EPA classification around 4 ppt)71783.9%
PFOS: 4.05 ppt study benchmark (reproduces EPA classification around 4 ppt)81784.5%
PFHxS: 15 ppt study benchmark (reproduces EPA classification around 10 ppt)31781.7%
PFNA: 15 ppt study benchmark (reproduces EPA classification around 10 ppt)01780.0%
HFPO-DA: 15 ppt study benchmark (reproduces EPA classification around 10 ppt)01780.0%
Hazard Index: 1.5 study benchmark with at least two detected components (reproduces EPA classification around 1)31781.7%
System directory

Community water systems with complete monitoring

“Complete monitoring” means at least one sampling location had all required samples needed for a yearly average. Each PWSID appears once, preventing double counting across ZIP associations.

Active community water systems with complete UCMR 5 monitoring in Minnesota.
Public water systemPWSIDPopulation servedPrimary sourceSampling locationsStudy benchmark result
Albert LeaMN124000118,492Ground water3Below all study benchmarks
AlexandriaMN121000115,000Ground water1Below all study benchmarks
AmboyMN1070001535Ground water1Below all study benchmarks
AndoverMN102003421,455Ground water3Below all study benchmarks
AnnandaleMN18600023,430Ground water1Below all study benchmarks
AnokaMN102000117,798Ground water4Below all study benchmarks
Apple ValleyMN119000150,300Ground water1Below all study benchmarks
ArlingtonMN17200012,230Ground water1Below all study benchmarks
Austin UtilitiesMN150000226,174Ground water7Below all study benchmarks
BaxterMN11800279,341Ground water1Below all study benchmarks
BeckerMN17100085,034Ground water4At or above a study benchmark
Belle PlaineMN17000017,456Ground water1Below all study benchmarks
BemidjiMN104000215,147Ground water1Below all study benchmarks
Big LakeMN171000213,056Ground water2Below all study benchmarks
Bird IslandMN16500011,024Ground water1Below all study benchmarks
BlaineMN102000670,220Ground water9Below all study benchmarks
Bloomington, MNMN127000191,300Surface water purchased2Below all study benchmarks
Blue Earth Light and WaterMN12200013,174Ground water1Below all study benchmarks
BrainerdMN118000214,670Ground water1Below all study benchmarks
BreckenridgeMN18400023,340Ground water1Below all study benchmarks
Brooklyn CenterMN127000433,782Ground water1Below all study benchmarks
Brooklyn ParkMN127000589,995Ground water5At or above a study benchmark
BuffaloMN186000516,711Ground water1Below all study benchmarks
BurnsvilleMN119000261,747Surface water1Below all study benchmarks
ByronMN15500016,809Ground water2Below all study benchmarks
CambridgeMN13000029,862Ground water1Below all study benchmarks
CarverMN11000176,700Ground water1Below all study benchmarks
CentervilleMN10200363,962Ground water1Below all study benchmarks
ChamplinMN127000623,919Ground water2Below all study benchmarks
ChanhassenMN110000124,951Ground water2Below all study benchmarks
ChaskaMN110000230,000Ground water1Below all study benchmarks
Chisago CityMN11300033,745Ground water3Below all study benchmarks
ChisholmMN16900074,940Surface water1Below all study benchmarks
Circle PinesMN10200135,075Ground water1Below all study benchmarks
CloquetMN109000512,864Ground water4At or above a study benchmark
Cold SpringMN17300064,201Ground water2Below all study benchmarks
Coon RapidsMN102001764,000Ground water9Below all study benchmarks
Cottage GroveMN182000442,760Ground water5Below all study benchmarks
CrookstonMN16000027,272Ground water1Below all study benchmarks
CrystalMN127000822,937Surface water purchased1Below all study benchmarks
Delano Municipal UtilitiesMN18600076,564Ground water1Below all study benchmarks
Detroit LakesMN103000510,038Ground water1Below all study benchmarks
DilworthMN11400034,918Surface water purchased1Below all study benchmarks
DuluthMN169001186,859Surface water1Below all study benchmarks
EaganMN119000768,223Ground water2Below all study benchmarks
Eden PrairieMN127001063,726Ground water1Below all study benchmarks
EdinaMN127001153,494Ground water10Below all study benchmarks
Elk RiverMN171000419,532Ground water8Below all study benchmarks
ElyMN16900143,258Surface water1Below all study benchmarks
EvelethMN16900183,770Surface water1Below all study benchmarks
FairmontMN146000310,328Surface water1Below all study benchmarks
FaribaultMN166000223,718Ground water1Below all study benchmarks
FarmingtonMN119000823,534Ground water6Below all study benchmarks
Fergus FallsMN156001414,194Surface water1Below all study benchmarks
FloodwoodMN1690048501Ground water1Below all study benchmarks
Forest LakeMN182000511,800Ground water2Below all study benchmarks
FridleyMN102003127,476Ground water3Below all study benchmarks
GlencoeMN14300035,676Ground water2Below all study benchmarks
Golden ValleyMN127001423,000Surface water purchased1Below all study benchmarks
GoodviewMN18500124,158Ground water2Below all study benchmarks
Grand RapidsMN131001111,346Ground water1Below all study benchmarks
Hastings, MNMN119001223,222Ground water5At or above a study benchmark
HermantownMN16900437,215Surface water purchased1Below all study benchmarks
HibbingMN169002216,028Ground water2Below all study benchmarks
HoldingfordMN1730014770Ground water1Below all study benchmarks
HopkinsMN127001619,462Ground water1Below all study benchmarks
HugoMN182000712,047Ground water5Below all study benchmarks
HutchinsonMN143000414,900Ground water1Below all study benchmarks
International FallsMN13600025,637Surface water1Below all study benchmarks
Inver Grove HeightsMN119001434,189Ground water1Below all study benchmarks
IsantiMN13000057,386Ground water1Below all study benchmarks
Jackson, MNMN13200033,323Ground water1Below all study benchmarks
Joint Powers Water BoardMN186002430,922Ground water2Below all study benchmarks
KassonMN12000056,850Ground water3Below all study benchmarks
LOWER SIOUX0552945034,000Ground water1Below all study benchmarks
LaCrescentMN12800075,257Ground water1Below all study benchmarks
Lake ElmoMN182000910,978Ground water3At or above a study benchmark
Lakeland Municipal WaterMN18200293,500Ground water2Below all study benchmarks
LakevilleMN119001567,300Ground water1Below all study benchmarks
LeSueurMN14000104,170Ground water1Below all study benchmarks
Liberty Ponds DevelopmentMN1130024240Ground water1Below all study benchmarks
Lincoln-Pipestone Rural Water SystemMN141000713,644Surface water purchased4Below all study benchmarks
LindstromMN11300074,938Ground water2Below all study benchmarks
Lino LakesMN102002317,859Ground water5Below all study benchmarks
LitchfieldMN14700086,786Ground water1Below all study benchmarks
Little CanadaMN162000510,200Surface water purchased1Below all study benchmarks
Little FallsMN14900029,069Ground water1Below all study benchmarks
Long PrairieMN17700073,744Ground water1Below all study benchmarks
MabelMN1230007715Ground water2Below all study benchmarks
MahtomediMN18200138,818Ground water3Below all study benchmarks
MankatoMN107000942,803Groundwater under influence of surface water2Below all study benchmarks
Maple GroveMN127002082,000Ground water1Below all study benchmarks
Marshall, MNMN142000613,890Ground water1Below all study benchmarks
MedinaMN12700234,205Ground water4Below all study benchmarks
MelroseMN17300163,886Ground water4Below all study benchmarks
MinneapolisMN1270024425,300Surface water2Below all study benchmarks
MinnetonkaMN127003154,474Ground water8Below all study benchmarks
MinnetristaMN12700365,888Ground water3Below all study benchmarks
MontevideoMN11200045,337Ground water1Below all study benchmarks
Monticello, MNMN186001215,087Ground water4Below all study benchmarks
MoorheadMN114000844,583Surface water1Below all study benchmarks
MoraMN13300013,786Ground water1Below all study benchmarks
MorrisMN17500055,351Ground water1Below all study benchmarks
MoundMN12700389,447Ground water2Below all study benchmarks
Mounds ViewMN162000813,250Ground water3Below all study benchmarks
New BrightonMN162000922,902Ground water1Below all study benchmarks
New HopeMN127004020,963Surface water purchased1Below all study benchmarks
New PragueMN14000138,247Ground water3Below all study benchmarks
New UlmMN108000314,052Ground water1Below all study benchmarks
NewportMN18200144,000Ground water2At or above a study benchmark
North BranchMN11300116,863Ground water2Below all study benchmarks
North Saint PaulMN162001113,134Ground water5Below all study benchmarks
Northfield, MNMN166001020,790Ground water5Below all study benchmarks
Oak Park HeightsMN18200204,776Ground water2Below all study benchmarks
OakdaleMN182001630,144Ground water4Below all study benchmarks
OrtonvilleMN10600082,021Ground water1Below all study benchmarks
Otsego, MNMN186002619,000Ground water4Below all study benchmarks
OwatonnaMN174000726,430Ground water6Below all study benchmarks
PRAIRIE ISLAND0552945026,699Ground water1Below all study benchmarks
Park RapidsMN12900034,298Ground water1Below all study benchmarks
PerhamMN15600233,421Ground water2Below all study benchmarks
PipestoneMN15900054,273Ground water1Below all study benchmarks
PlainviewMN17900123,340Ground water1Below all study benchmarks
Plymouth, MNMN127004476,546Ground water2Below all study benchmarks
PrincetonMN14800085,421Ground water2Below all study benchmarks
Prior LakeMN170000725,282Ground water1Below all study benchmarks
RamseyMN102003517,705Ground water7Below all study benchmarks
RanierMN1360006565Surface water purchased1Below all study benchmarks
Red Rock Rural Water SystemMN11700095,840Ground water2Below all study benchmarks
Red WingMN125001316,459Ground water2Below all study benchmarks
Redwood FallsMN16400085,254Ground water1Below all study benchmarks
RichfieldMN127004536,899Ground water1Below all study benchmarks
RobbinsdaleMN127004614,646Ground water1Below all study benchmarks
Rochester, MNMN1550010123,624Ground water30Below all study benchmarks
RockfordMN18600184,863Ground water1Below all study benchmarks
RosemountMN119001926,500Ground water8Below all study benchmarks
RosevilleMN162001335,343Surface water purchased1Below all study benchmarks
SIOUX TRAIL05529450624,959Ground water1Below all study benchmarks
Saint Anthony VillageMN12700489,500Ground water1Below all study benchmarks
Saint CharlesMN18500093,825Ground water3Below all study benchmarks
Saint ClairMN1070017846Ground water1Below all study benchmarks
Saint CloudMN173002771,321Surface water1Below all study benchmarks
Saint FrancisMN10200285,200Ground water1Below all study benchmarks
Saint JamesMN18300064,611Ground water1Below all study benchmarks
Saint JosephMN17300337,100Ground water2Below all study benchmarks
Saint Louis ParkMN127005050,010Ground water6Below all study benchmarks
Saint Paul ParkMN18200185,427Ground water1Below all study benchmarks
Saint Paul Regional Water ServicesMN1620026392,529Surface water1Below all study benchmarks
Saint PeterMN152000612,198Ground water2Below all study benchmarks
SartellMN173003620,300Ground water2Below all study benchmarks
Sauk RapidsMN105000413,835Ground water3At or above a study benchmark
SavageMN170000830,285Surface water purchased2Below all study benchmarks
ShakopeeMN170000947,000Ground water13Below all study benchmarks
ShoreviewMN162002026,000Ground water1Below all study benchmarks
ShorewoodMN12700513,890Ground water4Below all study benchmarks
Sleepy EyeMN10800053,599Ground water1Below all study benchmarks
South Saint PaulMN119002020,664Ground water5Below all study benchmarks
Spring Lake ParkMN10200297,200Ground water2Below all study benchmarks
StewartvilleMN15500266,850Ground water2Below all study benchmarks
StillwaterMN182002419,462Ground water8At or above a study benchmark
Thief River FallsMN15700038,701Surface water1Below all study benchmarks
Two HarborsMN13800053,698Surface water1Below all study benchmarks
VINELAND0552943014,220Ground water1Below all study benchmarks
Vadnais HeightsMN162003013,025Ground water3Below all study benchmarks
VictoriaMN110000910,546Ground water1Below all study benchmarks
VirginiaMN16900468,361Surface water1Below all study benchmarks
WadenaMN18000044,332Ground water1Below all study benchmarks
Waite ParkMN17300398,354Ground water1At or above a study benchmark
WatertownMN11000124,550Ground water2Below all study benchmarks
WayzataMN12700544,592Ground water2Below all study benchmarks
White Bear LakeMN162002425,634Ground water1Below all study benchmarks
White Bear TownshipMN162002511,699Ground water6Below all study benchmarks
WillmarMN134001621,045Ground water2Below all study benchmarks
WinonaMN185001327,782Ground water3Below all study benchmarks
WoodburyMN182002582,643Ground water12At or above a study benchmark
WorthingtonMN153001114,052Surface water purchased2Below all study benchmarks
WyomingMN11300183,990Ground water3Below all study benchmarks
ZimmermanMN17100066,772Ground water2Below all study benchmarks
How the count works

What is included

Each active community water system with enough required samples for a yearly average is counted once, even if it is linked with several ZIP codes. This does not mean every home was tested. Private wells are excluded, and UCMR 5 did not comprehensively monitor every small system. This page does not apply Minnesota's state-specific standards or determine compliance. Use the official state or territory drinking-water program for current regulatory information.

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Related links

PFAS Estimator system lookupNational state comparison tableFull methodology and limitationsCurrent EPA UCMR 5 Data FinderOfficial state and territory drinking-water programs