State system profile

PFAS in Arkansas 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 148 Release ucmr5-2026-01-15-analysis-v0.2
Systems with a yearly average at or above an EPA-based study benchmark
0.0%0 of 148 active community water systems

All 148 systems had enough required samples to calculate a yearly average. 0 had at least one yearly average at or above a study benchmark; 148 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 Arkansas

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 Arkansas.
Study benchmarkSystems at or above benchmarkWater systems includedPercent
PFOA: 4.05 ppt study benchmark (reproduces EPA classification around 4 ppt)01480.0%
PFOS: 4.05 ppt study benchmark (reproduces EPA classification around 4 ppt)01480.0%
PFHxS: 15 ppt study benchmark (reproduces EPA classification around 10 ppt)01480.0%
PFNA: 15 ppt study benchmark (reproduces EPA classification around 10 ppt)01480.0%
HFPO-DA: 15 ppt study benchmark (reproduces EPA classification around 10 ppt)01480.0%
Hazard Index: 1.5 study benchmark with at least two detected components (reproduces EPA classification around 1)01480.0%
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 Arkansas.
Public water systemPWSIDPopulation servedPrimary sourceSampling locationsStudy benchmark result
ADC - CUMMINS UNIT MAINTAR00003153,800Ground water3Below all study benchmarks
ALMA WATERWORKSAR00001446,123Surface water1Below all study benchmarks
ARKADELPHIA WATERWORKSAR000008511,855Surface water1Below all study benchmarks
ASHDOWN WATERWORKSAR00003204,261Ground water4Below all study benchmarks
ATKINS WATER SYSTEMAR00004414,439Surface water1Below all study benchmarks
BATESVILLE WATER UTILITIESAR000025015,621Surface water1Below all study benchmarks
BATTS-LAPILE WATER ASSOCIATIONAR0000622583Ground water1Below all study benchmarks
BEAVERFORK PWAAR00008444,220Surface water purchased1Below all study benchmarks
BEEBE WATERWORKSAR00005928,451Surface water purchased2Below all study benchmarks
BELLA VISTA POAAR000003939,419Surface water purchased1Below all study benchmarks
BENTON CO WATERAR00000376,730Surface water purchased1Below all study benchmarks
BENTON WATERWORKSAR000048430,681Surface water1Below all study benchmarks
BENTONVILLE WATER UTILITIESAR000004151,250Surface water purchased1Below all study benchmarks
BERRYVILLE WATERWORKSAR00000746,813Surface water purchased1Below all study benchmarks
BLYTHEVILLE WATERWORKSAR000036512,981Ground water1Below all study benchmarks
BOONEVILLE WATERWORKSAR00003263,847Surface water1Below all study benchmarks
BRINKLEY WATERWORKSAR00003842,992Ground water1Below all study benchmarks
BRYANT WATERWORKSAR000048619,607Surface water purchased1Below all study benchmarks
BUFFALO ISLAND REG WATER DISTAR00006713,055Surface water purchased1Below all study benchmarks
CABOT WATERWORKSAR000033830,063Surface water purchased2Below all study benchmarks
CAMDEN WATERWORKSAR000040413,275Surface water1Below all study benchmarks
CEDARVILLE WATERWORKSAR00001388,529Surface water purchased1Below all study benchmarks
CENTER GROVE WATER ASSOCIATIONAR00002133,858Ground water1Below all study benchmarks
CENTERTON WATERWORKSAR000004427,243Surface water purchased1Below all study benchmarks
CENTRAL ARKANSAS WATERAR0000465368,455Surface water2Below all study benchmarks
CHEROKEE VILLAGE WATER ASSOCAR00005214,780Ground water1Below all study benchmarks
CITY CORPORATIONAR000044629,260Surface water1Below all study benchmarks
CLARKSVILLE CONNECTED UTILITIESAR00002899,410Surface water1Below all study benchmarks
CLAY CO REG WATER DISTRICTAR00007225,633Ground water3Below all study benchmarks
COMMUNITY WATER SYSTEMAR000010118,628Surface water1Below all study benchmarks
CONWAY CO REGIONAL WATER DISTAR000011922,505Surface water1Below all study benchmarks
CONWAY WATER SYSTEMAR000018964,008Surface water1Below all study benchmarks
CORNING WATERWORKSAR00000963,388Ground water purchased1Below all study benchmarks
CROSS COUNTY RURAL WATER SYSAR00004598,750Ground water4Below all study benchmarks
CROSSETT WATER COMMISSIONAR00000177,900Ground water1Below all study benchmarks
CROWLEYS RIDGE WATER ASSOCAR00001803,873Ground water3Below all study benchmarks
DARDANELLE WATERWORKSAR00006014,517Ground water1Below all study benchmarks
DECATUR WATERWORKSAR00000522,468Surface water purchased2Below all study benchmarks
DEQUEEN WATER WORKAR00005206,105Surface water1Below all study benchmarks
DES ARC WATERWORKSAR00004494,245Ground water1Below all study benchmarks
DUMAS WATERWORKSAR00001716,338Ground water3Below all study benchmarks
EAST END WATERAR00006465,954Ground water2Below all study benchmarks
EAST JOHNSON CO WATER ASSNAR00007725,200Surface water purchased1Below all study benchmarks
EL DORADO WATERWORKSAR000055017,932Ground water2Below all study benchmarks
FAYETTEVILLE WATERWORKSAR0000569116,398Surface water purchased1Below all study benchmarks
FORDYCE WATER COAR00001643,191Ground water1Below all study benchmarks
FORREST CITY WATERWORKSAR00000049,986Ground water1Below all study benchmarks
FORT SMITH WATER UTILITIESAR000050786,209Surface water2Below all study benchmarks
FOUR MILE HILL WATER ASSOCAR00005864,877Surface water purchased1Below all study benchmarks
GENTRY WATERWORKSAR00000487,910Surface water purchased1Below all study benchmarks
GRAND PRAIRIE BAYOU 2 PWAAR000073413,519Surface water purchased3Below all study benchmarks
GRAND PRAIRIE REGIONAL WATERAR000073815,204Ground water3Below all study benchmarks
GRAVETTE WATERWORKSAR00000514,900Surface water purchased1Below all study benchmarks
GREEN FOREST WATERWORKSAR00000776,265Surface water purchased1Below all study benchmarks
GREENBRIER WATERWORKSAR000019112,938Surface water purchased1Below all study benchmarks
GREENWOOD WATERWORKSAR00005049,905Surface water1Below all study benchmarks
HAMBURG WATERWORKSAR00000155,600Ground water3Below all study benchmarks
HARDIN WATER ASSOCIATIONAR00002734,600Ground water purchased1Below all study benchmarks
HARRISBURG WATERWORKSAR00004312,824Ground water1Below all study benchmarks
HARRISON WATERWORKSAR000006217,455Surface water purchased1Below all study benchmarks
HARTFORD WATERWORKS, ARAR0000506725Surface water purchased1Below all study benchmarks
HARTMAN WATERWORKSAR0000286947Surface water purchased1Below all study benchmarks
HASKELL WATER SYSTEMAR00004884,000Surface water purchased1Below all study benchmarks
HEBER SPRINGS WATER SYSTEMAR000010414,015Surface water1Below all study benchmarks
HELENA WATER SEWERAR00004192,708Ground water1Below all study benchmarks
HOLIDAY ISLAND WATERWORKSAR00000782,446Ground water3Below all study benchmarks
HOPE WATER LIGHT COMMAR000023011,500Surface water3Below all study benchmarks
HOT SPRINGS UTILITIESAR000020975,343Surface water2Below all study benchmarks
HOT SPRINGS VILLAGE WATERWORKSAR000020815,985Surface water1Below all study benchmarks
HWY 63 WATER ASSOCIATIONAR00001077,187Ground water5Below all study benchmarks
HWY 71 WATER DISTRICT #1 PWAAR00001456,275Surface water purchased1Below all study benchmarks
JACKSONVILLE WATERWORKSAR000046632,875Surface water purchased1Below all study benchmarks
JAMES FORK REGIONAL WATER DISTRICTAR000051311,538Surface water1Below all study benchmarks
JONESBORO WATER SYSTEMAR000012481,888Ground water3Below all study benchmarks
KIMZEY REGIONAL WATER DISTRICTAR000082112,718Surface water2Below all study benchmarks
LAKEVIEW-MIDWAY PUBLIC WATER AUTHORITYAR00000274,383Surface water purchased1Below all study benchmarks
LAVACA WATERWORKSAR00005103,650Surface water purchased1Below all study benchmarks
LAWRENCE CO REG WATER DISTAR00006887,469Surface water purchased6Below all study benchmarks
LIBERTY UTILITIESAR000027243,438Ground water1Below all study benchmarks
LINCOLN WATERWORKSAR00005726,690Surface water purchased1Below all study benchmarks
LITTLE CREEK WATER ASSOCIATIONAR00002142,561Ground water1Below all study benchmarks
LITTLE RIVER CO RDAAR00007874,279Surface water1Below all study benchmarks
MADISON CO WATER FACILITIES BDAR000034911,435Surface water purchased1Below all study benchmarks
MAGNOLIA WATERWORKSAR000010911,657Surface water3Below all study benchmarks
MALVERN WATERWORKSAR000023714,410Surface water1Below all study benchmarks
MANILA WATERWORKSAR00003784,165Ground water1Below all study benchmarks
MARION WATERWORKSAR000015213,032Ground water1Below all study benchmarks
MARVELL WATERWORKSAR00004211,035Ground water1Below all study benchmarks
MAYFLOWER WATERWORKSAR00001937,390Surface water purchased1Below all study benchmarks
MC CRORY WATERWORKSAR00005991,736Ground water1Below all study benchmarks
MC GEHEE WATERWORKSAR00001703,849Ground water3Below all study benchmarks
MENA WATER DEPARTMENTAR00004385,604Surface water1Below all study benchmarks
MID-ARKANSAS UTILITIES P.W.AAR000072511,148Surface water purchased1Below all study benchmarks
MILLTOWN-WASHBURN WATER USERSAR00007734,325Surface water purchased1Below all study benchmarks
MONTICELLO WATER DEPARTMENTAR00001848,442Ground water6Below all study benchmarks
MOUNT OLIVE WATER ASSOCIATIONAR00006686,308Surface water purchased1Below all study benchmarks
MOUNTAIN HOME WATERWORKSAR000002519,618Surface water1Below all study benchmarks
MOUNTAIN VIEW WATERWORKSAR00005426,153Surface water1Below all study benchmarks
N GARLAND CO REG WATER DISTAR00008677,913Surface water1Below all study benchmarks
NASHVILLE RURAL WATER AUTHORITYAR00008057,291Surface water purchased1Below all study benchmarks
NASHVILLE WATERWORKSAR00002444,153Surface water1Below all study benchmarks
NEWPORT WATERWORKSAR00002646,204Ground water1Below all study benchmarks
NORTH WHITE CO RURAL WATER PFBAR00005835,215Surface water purchased1Below all study benchmarks
PARAGOULD LIGHT WATER & CABLEAR000022231,188Ground water1Below all study benchmarks
PARIS WATERWORKSAR00003284,935Surface water1Below all study benchmarks
PEA RIDGE WATERWORKSAR000005312,795Surface water purchased1Below all study benchmarks
PIGGOTT WATERWORKSAR00000904,620Ground water2Below all study benchmarks
POCAHONTAS WATERWORKSAR00004747,752Surface water1Below all study benchmarks
POTTSVILLE WATER ASSOCIATIONAR00004454,045Surface water purchased1Below all study benchmarks
PRAIRIE GROVE WATERWORKSAR00005739,615Surface water1Below all study benchmarks
PRESCOTT WATERWORKSAR00003944,500Surface water1Below all study benchmarks
RIVERSOUTH RURAL WATER DISTAR00006744,275Surface water purchased1Below all study benchmarks
ROGERS WATER UTILITIESAR000005581,443Surface water purchased1Below all study benchmarks
SALEM WATER ASSOCIATIONAR000049222,775Surface water purchased1Below all study benchmarks
SALESVILLE COMMUNITY WATER ASSOCIATIONAR0000036715Ground water2Below all study benchmarks
SARDIS WATER ASSOCIATIONAR000049315,660Surface water purchased4Below all study benchmarks
SE WHITE COUNTY WATER ASSOCAR00005945,018Surface water purchased1Below all study benchmarks
SEARCY WATERWORKSAR000059028,196Surface water1Below all study benchmarks
SEVIER CO WATER ASSOCIATIONAR00008685,365Surface water1Below all study benchmarks
SHANNON HILLS WATER DEPTAR00008003,832Surface water purchased1Below all study benchmarks
SILOAM SPRINGS WATERWORKSAR000005621,430Surface water1Below all study benchmarks
SOUTH SHERIDAN WATER ASSOCAR00002193,887Ground water1Below all study benchmarks
SOUTHSIDE PUB WATER AUTHORITYAR00002549,108Surface water1Below all study benchmarks
SOUTHWEST WATER ASSOCIATIONAR00004959,573Surface water purchased1Below all study benchmarks
SPRINGDALE WATER UTILITIESAR000057598,948Surface water purchased1Below all study benchmarks
STUTTGART WATERWORKSAR00000137,393Ground water2Below all study benchmarks
SW BOONE COUNTY WATER ASSOCAR00006284,558Surface water purchased1Below all study benchmarks
SW WHITE COUNTY WATER ASSNAR000018512,173Surface water purchased1Below all study benchmarks
TEXARKANA WATER UTILITIESAR000036050,815Surface water1Below all study benchmarks
TRI-COUNTY WATER DISTBR DISTAR000078220,394Surface water2Below all study benchmarks
TRUMANN WATERWORKSAR000043510,000Ground water1Below all study benchmarks
TUCKERMAN WATERWORKSAR00002661,817Ground water1Below all study benchmarks
TUMBLING SHOALS WATER ASSOCAR00005796,608Surface water purchased1Below all study benchmarks
VAN BUREN COUNTY W U AAR00007273,500Surface water purchased1Below all study benchmarks
VAN BUREN WATERWORKSAR000014222,725Surface water purchased1Below all study benchmarks
VILONIA WATERWORKSAR000019524,690Surface water purchased1Below all study benchmarks
WALDRON WATERWORKSAR00004983,550Surface water1Below all study benchmarks
WARD WATERWORKSAR000034512,579Surface water purchased1Below all study benchmarks
WARREN WATERWORKSAR00000666,001Ground water1Below all study benchmarks
WASHINGTON WATER AUTHORITY WWAAR000057420,140Surface water purchased1Below all study benchmarks
WASHINGTON WATER SYSTEMAR0000232142Ground water2Below all study benchmarks
WATSON CHAPEL WATER ASSOCAR00002845,590Ground water1Below all study benchmarks
WEST HELENA WATER WORKSAR00004165,693Ground water1Below all study benchmarks
WEST MEMPHIS WATERWORKSAR000015624,419Ground water1Below all study benchmarks
WESTERN GREENE COUNTY R W DAR00007047,095Ground water3Below all study benchmarks
WOOSTER WATERWORKSAR00001965,000Surface water purchased1Below all study benchmarks
WYNNE WATERWORKSAR00001638,391Ground water1Below all study benchmarks
YORKTOWN WATER ASSOCIATIONAR00003197,364Ground water5Below 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 Arkansas'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