States / Oklahoma / Drinking Water
Drinking Water Systems in Oklahoma
889 community water systems serving about 3,653,821 people. 678 have a health-based violation on record since 2015, 20 of them unresolved.
SystemHealth-based violations (2015+)
PECAN TREE WATER ASSN · Cleveland County · 22 served · groundwater288 (1 unresolved)
WETUMKA · Hughes County · 1,451 served · surface water239 (1 unresolved)
OKARCHE RWD, INC · Kingfisher County · 250 served · groundwater215 (1 unresolved)
LEFLORE CO. RWD #3 · Le Flore County · 1,643 served · purchased surface water210 (1 unresolved)
TULLAHASSEE WATER · Wagoner County · 106 served · purchased surface water185 (1 unresolved)
OAKLAND PWA · Marshall County · 1,050 served · purchased surface water160 (1 unresolved)
MUSKOGEE CO. RWD #9 · Muskogee County · 300 served · purchased surface water118 (1 unresolved)
IRONSIDE WATER DISTRICT INC · Craig County · 392 served · purchased surface water105 (1 unresolved)
DUKE PUBLIC WATER AUTHORITY · Jackson County · 425 served · purchased surface water70 (1 unresolved)
RED BIRD PWA · Wagoner County · 153 served · purchased surface water14 (1 unresolved)
CANOE MOUNTAIN WATER SYSTEM · Cherokee County · 26 served · surface water7 (1 unresolved)
GRADY CO RWD #3 · Grady County · 80 served · groundwater5 (1 unresolved)
QUAPAW · Ottawa County · 906 served · groundwater1 (1 unresolved)
R&C WATER CORP · Grant County · 400 served · purchased groundwater1 (1 unresolved)
OPTIMA · Texas County · 400 served · groundwater1 (1 unresolved)
MEDICINE PARK · Comanche County · 382 served · purchased surface water1 (1 unresolved)
GARFIELD CO RWD # 4 · Garfield County · 334 served · purchased groundwater1 (1 unresolved)
OSAGE PWA · Osage County · 275 served · groundwater1 (1 unresolved)
OAKS MOBILE HOME PARK · Creek County · 250 served · purchased surface water1 (1 unresolved)
OTTAWA CO RWD # 3 · Ottawa County · 140 served · groundwater1 (1 unresolved)
BARNSDALL · Osage County · 1,243 served · surface water1077
HOMINY · Osage County · 2,584 served · surface water894
CLEVELAND MUNICIPAL AUTHORITY · Pawnee County · 3,262 served · surface water710
MAYSVILLE · Garvin County · 1,212 served · surface water710
WEWOKA PUBLIC WORKS AUTHORITY · Seminole County · 3,450 served · surface water685
RYAN UTILITIES AUTHORITY · Jefferson County · 800 served · purchased surface water624
SARDIS LAKE WATER AUTHORITY · Pushmataha County · 307 served · surface water597
FAIRFAX · Osage County · 1,555 served · surface water575
BEGGS · Okmulgee County · 1,364 served · surface water543
WAURIKA PUBLIC WORKS AUTHORITY · Jefferson County · 2,100 served · surface water533
OSAGE CO RWD # 5 · Osage County · 561 served · purchased surface water504
BOSWELL PUBLIC WORKS AUTHORITY · Choctaw County · 932 served · purchased surface water485
OSAGE CO RWD #20 (HULAH) · Osage County · 350 served · purchased surface water484
OKMULGEE PWA · Okmulgee County · 13,495 served · surface water479
MUSKOGEE CO. RWD #5 · Muskogee County · 4,135 served · purchased surface water470
CHOCTAW CO. RWSG & SWMD #6 · Choctaw County · 850 served · purchased surface water442
SOUTHERN OKLA WATER CORP · Carter County · 11,250 served · surface water440
STRINGTOWN PWA · Atoka County · 1,105 served · purchased surface water440
OKMULGEE CO. RWD #1 · Okmulgee County · 1,890 served · purchased surface water429
EAKLY DEVELOPMENT CORP · Caddo County · 277 served · groundwater410
PITTSBURG CO. RWD #14 · Pittsburg County · 1,680 served · purchased surface water408
GRANDFIELD · Tillman County · 1,110 served · purchased surface water395
MUSKOGEE CO. RWD #6 · Muskogee County · 2,550 served · purchased surface water388
HASKELL PWA-SWP · Muskogee County · 250 served · purchased surface water384
AVANT UTILITIES AUTHORITY · Osage County · 361 served · surface water383
PITTSBURG · Pittsburg County · 280 served · surface water381
OKMULGEE CO. RWD #6 (HECTORVILLE) · Okmulgee County · 8,370 served · purchased surface water378
HUGO MUNICIPAL AUTHORITY · Choctaw County · 5,536 served · surface water378
PUSHMATAHA CO. RWD #3 · Pushmataha County · 4,825 served · surface water378
ASHER UTIL DEV AUTH · Pottawatomie County · 375 served · purchased surface water367
OKMULGEE CO. RWD #4 · Okmulgee County · 1,913 served · purchased surface water340
COMANCHE PUBLIC WORKS AUTHORITY · Stephens County · 1,649 served · surface water340
MCCURTAIN MUNICIPAL AUTHORITY · Haskell County · 560 served · purchased surface water333
WANETTE PUBLIC WORKS AUTHORITY · Pottawatomie County · 402 served · purchased surface water328
OKMULGEE CO. RWD #2 (PRESTON) · Okmulgee County · 2,355 served · purchased surface water319
MORRIS · Okmulgee County · 1,460 served · purchased surface water319
OKMULGEE CO. RWD #7 (NUYAKA) · Okmulgee County · 2,357 served · purchased surface water310
OTOE-MISSOURIA TRIBE · Noble County · 250 served · surface water310
OKMULGEE CO. RWD #20 · Okmulgee County · 2,377 served · purchased surface water306
MUSKOGEE CO. RWD #3 · Muskogee County · 1,300 served · surface water306
GRAYHORSE RWD · Osage County · 100 served · purchased surface water297
SPIRO EAST WATER ASSOCIATION · Le Flore County · 1,817 served · purchased surface water296
IDABEL PWA · McCurtain County · 6,952 served · surface water293
HOLDENVILLE · Hughes County · 4,732 served · surface water289
PUSHMATAHA CO. RWD #5 (NASHOBA) · Pushmataha County · 725 served · purchased surface water289
LONE CHIMNEY WATER ASSOCIATION · Pawnee County · 150 served · surface water287
CANADIAN CO RWD # 1 · Canadian County · 750 served · groundwater286
EUFAULA PWA · McIntosh County · 2,766 served · surface water283
PITTSBURG CO. RWD #5 · Pittsburg County · 1,750 served · purchased surface water283
OLUSTEE PUBLIC WORKS AUTHORITY · Jackson County · 607 served · purchased surface water280
ATOKA CO. RWS & SWMD #4 · Atoka County · 3,000 served · surface water277
MCINTOSH CO. RWD #5 · McIntosh County · 1,900 served · purchased surface water276
PAYNE CO RWD #4 · Payne County · 820 served · purchased surface water272
MUSKOGEE CO. RWD #1 (OKTAHA) · Muskogee County · 2,280 served · purchased surface water266
MUSKOGEE CO. RWD #14 · Muskogee County · 60 served · purchased surface water261
MADILL · Marshall County · 3,410 served · surface water259
MCINTOSH CO. RWS & SWMD #2 (ONAPA) · McIntosh County · 2,774 served · surface water259
OKARCHE · Kingfisher County · 1,110 served · groundwater256
MOUNTAIN PARK PUBLIC WORKS AUTH · Kiowa County · 473 served · purchased surface water255
GEARY · Blaine County · 1,258 served · groundwater247
MCALESTER PWA · Pittsburg County · 18,206 served · surface water246
COMANCHE CO RWD #4 · Comanche County · 3,000 served · purchased surface water246
YALE · Payne County · 1,227 served · purchased surface water234
PAWNEE CO RWD #3 · Pawnee County · 685 served · purchased surface water231
PORTER PWA · Wagoner County · 2,400 served · purchased surface water228
CHEROKEE CO. RWD #1 (FT GIBSON) · Cherokee County · 710 served · surface water227
SEMINOLE CO. RWD #2 · Seminole County · 315 served · purchased surface water227
LATIMER CO. RWD #2 · Latimer County · 1,500 served · purchased surface water224
WELEETKA PUBLIC WORKS AUTHORITY · Okfuskee County · 998 served · surface water223
WEST DAVIS RWD · Murray County · 500 served · purchased surface water223
TALIHINA PWA · Le Flore County · 950 served · surface water221
PAWNEE CO RWD #2 · Pawnee County · 1,775 served · purchased surface water220
KENDRICK MUNICIPAL AUTHORITY · Lincoln County · 266 served · purchased surface water218
ANADARKO PUBLIC WORKS AUTHORITY · Caddo County · 6,804 served · surface water217
MAJOR COUNTY RWD #1 · Major County · 1,000 served · groundwater214
DUNCAN PUBLIC UTILITIES AUTHORITY · Stephens County · 23,000 served · surface water211
SHIDLER · Osage County · 404 served · surface water210
POTEAU PWA · Le Flore County · 7,939 served · purchased surface water208
SEMINOLE CO. RWD #1 · Seminole County · 387 served · purchased surface water205
ALINE · Alfalfa County · 214 served · groundwater201
ADAMSON RWD #8 · Pittsburg County · 4,221 served · purchased surface water199
CHOCTAW CO. RWSG & SWMD #3 · Choctaw County · 235 served · purchased groundwater197
INDIAHOMA PUBLIC WORKS AUTHORITY · Comanche County · 350 served · purchased surface water196
HARTSHORNE · Pittsburg County · 2,300 served · purchased surface water194
BRYAN CO. RWS & SWMD #2 · Bryan County · 6,270 served · surface water193
TEMPLE · Cotton County · 1,146 served · surface water193
MCINTOSH CO. RWD #8 (TEXANNA) · McIntosh County · 3,574 served · surface water192
ELM BEND RWD INC · Nowata County · 600 served · purchased surface water191
DAVENPORT UTILITY AUTH · Lincoln County · 881 served · purchased surface water188
WAGONER CO. RWD #2 · Wagoner County · 2,000 served · surface water186
PITTSBURG CO. RWD #7 (ARPELAR) · Pittsburg County · 2,040 served · purchased surface water183
LEFLORE CO. RWD #2 · Le Flore County · 4,700 served · purchased surface water180
KEOTA PWA · Haskell County · 564 served · purchased surface water179
BIG CABIN PWA · Craig County · 293 served · purchased surface water176
MARSHALL COUNTY RURAL WATER DISTRICT #2 · Marshall County · 17,587 served · surface water174
THIRSTY WATER CORP · Greer County · 81 served · groundwater174
COPAN PWA · Washington County · 733 served · surface water173
MCCURTAIN CO. RWD #2 · McCurtain County · 755 served · purchased surface water172
CHEYENNE · Roger Mills County · 778 served · surface water169
WRIGHT CITY PWA · McCurtain County · 792 served · purchased surface water163
BOYNTON PWA · Muskogee County · 450 served · purchased surface water163
CALERA PWA · Bryan County · 2,815 served · groundwater162
COWETA PWA · Wagoner County · 9,450 served · surface water161
MCINTOSH CO. RWS & SWMD #9 · McIntosh County · 1,761 served · purchased surface water159
GARVIN CO RWD #6 (SW PURCHASE) · Garvin County · 862 served · purchased surface water159
MCCURTAIN CO. RWD #1 · McCurtain County · 3,842 served · purchased surface water158
NOWATA MUNICIPAL AUTHORITY · Nowata County · 3,971 served · surface water157
WAGONER CO. RWD #4 · Wagoner County · 25,792 served · surface water156
PAWNEE CO RWD #4 · Pawnee County · 415 served · purchased surface water156
HUGHES CO. RWD #3 · Hughes County · 200 served · purchased surface water155
PUSHMATAHA CO. RWD #2 (ALBION) · Pushmataha County · 959 served · purchased surface water154
KIOWA · Pittsburg County · 731 served · surface water154
MARTHA · Jackson County · 205 served · purchased surface water153
WESTERN CARTER CO WATER CORP · Carter County · 2,000 served · purchased surface water152
ATOKA CO. RWD #2 · Atoka County · 500 served · purchased surface water151
KINGFISHER · Kingfisher County · 5,073 served · groundwater149
SNYDER PUBLIC WORKS AUTHORITY · Kiowa County · 1,509 served · surface water148
TAFT · Muskogee County · 250 served · purchased surface water148
BOKOSHE PWA · Le Flore County · 450 served · purchased surface water145
MUSKOGEE CO. RWD #2 (GOOSENECK) · Muskogee County · 1,000 served · purchased surface water144
WELCH PWA · Craig County · 800 served · groundwater143
ATOKA CO. RWD #1 (WARDVILLE) · Atoka County · 125 served · purchased surface water141
SEMINOLE CO. RW&SWMD #3 · Seminole County · 337 served · purchased surface water139
TIPTON · Tillman County · 916 served · purchased surface water136
CADDO CO RWD #1 (LOOKEBA) · Caddo County · 275 served · groundwater136
STROUD UTILITIES AUTHORITY · Lincoln County · 2,811 served · surface water135
MCINTOSH CO. RWD #3 (VICTOR) · McIntosh County · 920 served · purchased surface water135
MUSKOGEE MUNICIPAL AUTHORITY · Muskogee County · 38,310 served · surface water133
LOYAL · Kingfisher County · 81 served · groundwater131
CLAREMORE · Rogers County · 15,873 served · surface water130
ATOKA · Atoka County · 2,988 served · surface water130
LEFLORE CO. RWD #15 · Le Flore County · 425 served · purchased surface water130
TECUMSEH UTILITY AUTHORITY · Pottawatomie County · 6,098 served · surface water129
WAGONER CO. RWD #9 · Wagoner County · 4,363 served · surface water128
VALLIANT PWA · McCurtain County · 971 served · purchased surface water128
ROGERS CO RWD # 2 · Rogers County · 2,750 served · purchased surface water126
LATIMER CO. RWD #3 · Latimer County · 175 served · purchased surface water126
ALTUS · Jackson County · 18,717 served · surface water125
LEFLORE CO. RWD #14 · Le Flore County · 9,077 served · purchased surface water124
CHEROKEE CO. RWD #13 · Cherokee County · 1,640 served · surface water120
BRYAN COUNTY RURAL WATER DISTRICT #5 · Bryan County · 8,325 served · purchased surface water118
BLACKWELL MUNICIPAL AUTHORITY · Kay County · 7,668 served · surface water117
CHANDLER · Lincoln County · 3,142 served · surface water116
OSAGE CO RWD #18 (EVERGREEN) · Osage County · 302 served · purchased surface water116
CHICKASHA MUNICIPAL AUTHORITY · Grady County · 16,036 served · surface water113
NOWATA CO RWD #2 · Nowata County · 205 served · purchased surface water112
OKMULGEE CO. RWD #21 · Okmulgee County · 625 served · purchased surface water109
KREBS UTILITY AUTHORITY · Pittsburg County · 2,051 served · surface water108
MANITOU · Tillman County · 278 served · purchased surface water107
COTTON CO RWD #2 · Cotton County · 3,000 served · groundwater104
MCCURTAIN CO. RWD #8 (MT. FORK WATER) · McCurtain County · 5,685 served · surface water103
HAWORTH PWA · McCurtain County · 354 served · purchased surface water103
OKAY PWA · Wagoner County · 767 served · purchased surface water102
CARMEN PUBLIC WORKS AUTHORITY · Alfalfa County · 355 served · groundwater102
WELLSTON · Lincoln County · 825 served · surface water101
HINTON · Caddo County · 2,600 served · groundwater98
DEVOL · Cotton County · 150 served · purchased surface water98
DELAWARE CO RWD # 3 · Delaware County · 653 served · surface water97
HAILEYVILLE · Pittsburg County · 889 served · purchased surface water95
MCCURTAIN CO. RWD #6 (KIAMICHI) · SMITHVILLE · 600 served · purchased surface water95
WAGONER CO. RWD #7 (NEW) · Wagoner County · 1,110 served · surface water94
LINCOLN CO RWD #3 · Lincoln County · 575 served · purchased surface water94
NOWATA COUNTY RWD # 3 · Nowata County · 225 served · purchased surface water94
ALTUS AFB · Jackson County · 4,617 served · purchased surface water92
ANTLERS PWA · Pushmataha County · 2,547 served · surface water92
DEER CREEK · Grant County · 147 served · groundwater92
LONGTOWN RW&SD #1 (PITTSBURG CO.) · Pittsburg County · 5,444 served · surface water91
HEAVENER UTILITY AUTH - PSG · Le Flore County · 3,000 served · purchased surface water91
PAWNEE · Pawnee County · 2,230 served · surface water91
KAY CO RWD #5 (DALE WATER CORP) · Kay County · 765 served · purchased groundwater89
ROGERS CO RWD # 3 LAKE PLANT · Rogers County · 10,470 served · surface water85
CHECOTAH PWA · McIntosh County · 3,481 served · surface water84
UNION CITY · Canadian County · 618 served84
NOWATA CO RWD #5 · Nowata County · 70 served · purchased surface water84
PANAMA PWA · Le Flore County · 1,400 served · purchased surface water83
CHOCTAW CO. RWD #2 · Choctaw County · 373 served · purchased surface water83
JEFFERSON CO CONS RWD #1 · Jefferson County · 8,398 served · purchased surface water82
FREDERICK · Tillman County · 3,940 served · surface water82
PAWHUSKA · Osage County · 3,800 served · surface water82
WYNNEWOOD WATER & LIGHT · Garvin County · 2,307 served · surface water82
COALGATE PWA · Coal County · 2,005 served · surface water81
MCCURTAIN CO. RWD #7 · McCurtain County · 1,847 served · purchased surface water80
LINCOLN CO RWD #2 · Lincoln County · 400 served · purchased surface water80
JACKSON CO WATER CORP · Jackson County · 2,662 served · purchased surface water79
PITTSBURG CO. RWD #16 · Pittsburg County · 1,268 served · purchased surface water79
HOLLIS · Harmon County · 2,264 served · groundwater77
WALTERS PUBLIC WORKS AUTHORITY · Cotton County · 2,551 served · surface water76
DILL CITY · Washita County · 526 served · groundwater75
AFTON PWA · Ottawa County · 1,428 served · surface water73
CREEK CO RWD # 7 · Creek County · 2,100 served · surface water72
PUSHMATAHA CO. RWD #1 · Pushmataha County · 1,200 served · purchased surface water72
CLAYTON PWA · Pushmataha County · 719 served · purchased surface water72
LENAPAH PUBLIC WORKS AUTHORITY · Nowata County · 298 served · surface water72
DEWAR · Okmulgee County · 917 served · purchased surface water70
CANUTE · Washita County · 524 served · groundwater70
LEFLORE CO. RWD #18 · Le Flore County · 3,870 served · purchased surface water69
PITTSBURG CO. RWD #11 (KIOWA) · Pittsburg County · 790 served · purchased surface water68
NOWATA CO RWD #7 · Nowata County · 1,050 served · purchased surface water66
MCCURTAIN CO. RWD #9 · McCurtain County · 999 served · purchased surface water66
NOWATA CO RWD #6 · Nowata County · 450 served · purchased surface water65
DELAWARE CO RWD # 7 · Delaware County · 400 served · purchased surface water65
LEFLORE CO. RWD #5 · Le Flore County · 1,593 served · purchased surface water64
STONETOWN CLEARVIEW MHC · Cleveland County · 170 served · groundwater63
BROKEN BOW PWA · McCurtain County · 4,320 served · surface water60
DAVIDSON · Tillman County · 375 served · purchased surface water59
STILLWATER UTILITIES AUTHORITY · Payne County · 53,000 served · surface water58
PERRY WATER & LIGHT DEPT · Noble County · 5,230 served · surface water58
APACHE · Caddo County · 1,521 served · groundwater58
STICKROSS MOUNTAIN WATER CO · Cherokee County · 3,250 served · purchased surface water57
HASKELL CO. WATER COMPANY · Haskell County · 3,000 served · surface water57
ROUNDHILL RWD #4 · Coal County · 219 served · purchased surface water57
CREEK CO RWD # 4 · Creek County · 575 served · purchased surface water56
COVES AT BIRD ISLAND · Delaware County · 100 served · purchased surface water56
WILBURTON · Latimer County · 3,025 served · surface water55
CLEO SPRINGS · Major County · 326 served · groundwater55
CRETA WATER CORPORATION · Jackson County · 230 served · purchased surface water54
GARVIN · McCurtain County · 150 served · purchased surface water54
TEXOMA HILLS · Marshall County · 212 served · purchased surface water53
MACK ALFORD CORRECTIONAL CENTER · Atoka County · 952 served · surface water52
POTTAWATOMIE COUNTY RWD #3 · Pottawatomie County · 560 served · surface water52
RANDLETT PWA · Cotton County · 320 served · purchased surface water52
OSU WATER PLANT · Payne County · 13,000 served · surface water51
TISHOMINGO MUNICIPAL AUTHORITY · Johnston County · 3,000 served · surface water51
HUGHES CO. RWD #1 · Hughes County · 1,225 served · groundwater51
STIGLER · Haskell County · 2,731 served · surface water50
GARBER MUNICIPAL AUTHORITY · Garfield County · 725 served · purchased groundwater50
KREMLIN-HILLSDALE RURAL WATER DISTRICT 1 · Garfield County · 320 served · groundwater50
BRAMAN · Kay County · 244 served · purchased surface water50
NORTH BLAINE WATER CORP · Blaine County · 960 served · groundwater49
WASHINGTON CO RWD #7 · Washington County · 258 served · purchased surface water49
GORE PWA · Sequoyah County · 1,688 served · surface water48
MULDROW PWA · Sequoyah County · 3,104 served · surface water47
OKFUSKEE CO. RWD #2 · Okfuskee County · 2,250 served · purchased surface water47
LEFLORE CO. RWD #17 · Le Flore County · 498 served · purchased surface water47
LANGSTON PWA · Logan County · 1,670 served · surface water44
PIEDMONT MUNICIPAL AUTHORITY · Canadian County · 7,542 served · purchased surface water43
WATONGA · Blaine County · 2,816 served · groundwater43
PITTSBURG CO. RWD #6 (ALDERSON) · Pittsburg County · 300 served · purchased surface water43
COLLINSVILLE · Tulsa County · 5,400 served · surface water42
LANGLEY · Mayes County · 950 served · surface water42
COAL CO RWD #5 · Coal County · 366 served · purchased surface water42
EL RENO · Canadian County · 16,212 served · purchased surface water41
MAYES CO RWD # 3 · Mayes County · 2,400 served · surface water41
TRYON · Lincoln County · 448 served · groundwater41
RED ROCK · Noble County · 293 served · purchased surface water41
RATLIFF CITY · Carter County · 131 served · purchased surface water41
PITTSBURG CO. RWD #20 (CARLTON LANDING) · Pittsburg County · 38 served · purchased surface water41
FAIRVIEW · Major County · 2,690 served · groundwater40
GRADY CO RWD #2 · Grady County · 455 served · groundwater40
POTEAU VALLEY IMPROVEMENT AUTHORITY · Le Flore County · 10 served · surface water40
HARRAH · Oklahoma County · 4,190 served · groundwater38
TILLMAN CO RWD #1 · Tillman County · 1,500 served · purchased surface water38
NORGE WATER AND SEWER CO., INC · Grady County · 890 served · purchased surface water38
SAPULPA · Creek County · 19,702 served · surface water37
LEFLORE CO. CONSOLIDATED RWD #12 · Le Flore County · 1,800 served · purchased surface water37
ARDMORE · Carter County · 24,893 served · surface water36
OKFUSKEE CO. RWD #3 · Okfuskee County · 1,823 served · purchased surface water36
MCCURTAIN CO. RWD #5 (HOCHATOWN) · McCurtain County · 1,614 served · purchased surface water36
DELAWARE · Nowata County · 456 served · surface water36
BROOKSVILLE · Pottawatomie County · 90 served · groundwater36
SPIRO · Le Flore County · 2,200 served · surface water35
CRAIG CO RWD #1 · Craig County · 315 served · purchased surface water35
FORT TOWSON · Choctaw County · 611 served · groundwater under surface influence34
RED OAK PWA · Latimer County · 581 served · surface water33
EASTSIDE MHP · Grady County · 32 served · groundwater33
TAHLEQUAH PWA · Cherokee County · 14,458 served · surface water32
PITTSBURG CO. RWD #9 (MCALESTER) · Pittsburg County · 872 served · purchased surface water32
SOPER · Choctaw County · 300 served · groundwater32
SAVANNA · Pittsburg County · 800 served · purchased surface water31
MENO · Major County · 195 served · groundwater31
MOORE PUBLIC WORKS AUTHORITY · Cleveland County · 55,083 served · purchased surface water30
CAMERON PWA · Le Flore County · 302 served · purchased surface water30
CHEROKEE CO. RWD #9 · Cherokee County · 200 served · purchased surface water30
37 MOBILE HOMES · Cleveland County · 50 served · groundwater30
CRAIG CO RWD #2 · Craig County · 4,250 served · purchased surface water29
WARNER · Muskogee County · 2,020 served · surface water29
CARNEY · Lincoln County · 649 served · groundwater29
NORTH VINITA WATER COOP INC · Craig County · 162 served · purchased surface water29
HEADRICK · Jackson County · 84 served · purchased groundwater29
LATIMER CO. RWD #4 · Latimer County · 412 served · surface water28
CHEROKEE CO. RWD # 16 (LAKEWOOD) · Cherokee County · 200 served · surface water28
AMES · Major County · 199 served · groundwater28
CANADIAN CO RWS & SWMD #5 · Canadian County · 316 served27
MCINTOSH CO. RWD #7 · McIntosh County · 200 served · purchased surface water26
OSAGE CO RWD #15 · Osage County · 6,647 served · purchased surface water25
BLANCHARD · McClain County · 2,966 served · purchased surface water25
PITTSBURG CO. PWA (CROWDER) · Pittsburg County · 2,203 served · surface water25
KONAWA PWA · Seminole County · 1,479 served · groundwater25
TENKILLER WATERWORKS, INC. · Cherokee County · 860 served · surface water25
SHAWNEE MUNICIPAL AUTHORITY · Pottawatomie County · 29,990 served · surface water24
OKEMAH UTILITIES AUTHORITY · Okfuskee County · 3,113 served · surface water23
PETTIT MOUNTAIN WATER · Cherokee County · 90 served · purchased surface water23
PAULS VALLEY · Garvin County · 6,256 served · surface water22
EAST CENTRAL OKLAHOMA WATER AUTHORITY · Sequoyah County · 1,200 served · surface water22
MUSKOGEE CO. RWD #4 · Muskogee County · 783 served · purchased surface water22
CREEK CO RWD # 2 · Creek County · 12,788 served · purchased surface water21
NEW CORDELL UTILITY AUTHORITY · Washita County · 2,903 served · purchased surface water20
KAY COUNTY RURAL WATER DISTRICT 7 · Kay County · 920 served · purchased surface water20
SKIATOOK PWA · Osage County · 8,110 served · surface water19
DAVIS · Murray County · 2,610 served · surface water19
CHOCTAW CO. RWD #1 · Choctaw County · 2,300 served · groundwater19
ADAIR CO RWD #5 · Adair County · 675 served · surface water19
SALLISAW · Sequoyah County · 8,510 served · surface water18
LATIMER CO. RWD #1 · Latimer County · 2,750 served · purchased surface water18
QUINTON · Pittsburg County · 1,071 served · purchased surface water18
SEQUOYAH CO. RWD #3 · Sequoyah County · 1,040 served · purchased surface water18
OAKVIEW WATER CORP · Marshall County · 925 served · groundwater18
GANS UTILITY AUTHORITY · Sequoyah County · 600 served · purchased surface water18
CORN PWA · Washita County · 500 served · groundwater18
PHILLIPS RWD #1 · Coal County · 140 served · purchased surface water17
PITTSBURG CO. WATER AUTHORITY · Pittsburg County · 5 served · surface water17
QUARTZ MOUNTAIN REG WATER AUTH · Kiowa County · 5 served · purchased groundwater17
DEWEY PUBLIC WORKS AUTHORITY · Washington County · 3,490 served · purchased surface water16
SEQUOYAH CO. RWD #4 · Sequoyah County · 1,750 served · purchased surface water16
CHEROKEE CO. RWD #8 (BRIGGS) · Cherokee County · 413 served · purchased surface water16
COUNTRY EAST MHP · Custer County · 97 served · groundwater16
CLINTON · Custer County · 8,883 served · surface water15
HUGHES CO. RWD #5 · Hughes County · 800 served · purchased surface water15
GROVE MUNICIPAL SERVICES AUTH. · Delaware County · 7,311 served · surface water14
WAGONER CO. RWD #6 · Wagoner County · 1,500 served · purchased surface water14
HYDRO PWA · Caddo County · 1,060 served · groundwater14
BURNT CABIN RWD · Cherokee County · 208 served · surface water14
SHADY ACRES CUSTER COUNTY · Custer County · 40 served · groundwater14
SEQUOYAH CO. RWD #8 · Sequoyah County · 13,460 served · surface water13
VINITA UTILITIES AUTHORITY · Craig County · 6,472 served · surface water13
WAYNE · McClain County · 688 served · groundwater13
CHEROKEE CO. RWD # 16 (WILDCAT) · Cherokee County · 200 served · surface water13
GUTHRIE · Logan County · 9,925 served · surface water12
HEALDTON · Carter County · 2,785 served · surface water12
INDIANOLA RWD #18 · Pittsburg County · 2,000 served · purchased surface water12
US ARMY AMMUNITION PLANT · Pittsburg County · 1,872 served · surface water12
WESTVILLE UTILITY AUTHORITY · Adair County · 1,596 served · purchased surface water12
GARVIN CO RWD #4 · Garvin County · 1,340 served · purchased surface water12
MURRAY STATE COLLEGE · Johnston County · 1,150 served · surface water12
SOUTH COFFEYVILLE · Nowata County · 790 served · purchased surface water12
DEERFIELD SPRINGS · Rogers County · 445 served · purchased surface water12
BRECKINRIDGE PWA · Garfield County · 239 served · groundwater12
CREEK CO RWD # 1 · Creek County · 5,675 served · surface water11
JONES · Oklahoma County · 1,727 served · groundwater11
ARCADIA PUBLIC WORKS AUTHORITY · Oklahoma County · 300 served11
NICHOLS HILLS · Oklahoma County · 4,020 served · groundwater10
LOGAN CO RWS & SWMD #3 · Logan County · 1,618 served · groundwater10
CRAIG CO RWS & SWMD #3 · Craig County · 1,100 served · groundwater10
LE ANN WATER · Washington County · 750 served · purchased surface water10
MAYES CO RWD # 7 · Mayes County · 538 served · purchased surface water10
BRIDGEPORT · Caddo County · 109 served · groundwater10
JOHNSTON CO RWS& SWMD #4 · Johnston County · 600 served · groundwater9
WILDFIRE ESTATES HOMEOWNERS · Cleveland County · 285 served · groundwater9
WILLOW · Greer County · 114 served · groundwater9
DURANT UTILITIES AUTHORITY · Bryan County · 15,545 served · surface water8
ROGERS CO RWD # 3 COT STA · Rogers County · 10,750 served · purchased surface water8
SAPULPA RURAL WATER COMPANY · Creek County · 5,810 served · purchased surface water8
HENNESSEY · Kingfisher County · 2,058 served · groundwater8
SOUTH DELAWARE CO REGIONAL WATER AUTH. · Delaware County · 1,500 served · surface water8
CALUMET · Canadian County · 600 served · groundwater8
RAMONA PUBLIC WORKS AUTHORITY · Washington County · 564 served · purchased surface water8
DIBBLE · McClain County · 550 served · purchased surface water8
SUMMIT RIDGE RETIREMENT CENTER, INC. · Oklahoma County · 200 served · groundwater8
OAK RIDGE ESTATES I & II WATER ASSOC. · Delaware County · 62 served · groundwater8
ROLAND · Sequoyah County · 2,842 served · surface water7
GRAND LAKE PWA · Delaware County · 2,800 served · groundwater7
WAYNOKA · Woods County · 993 served · groundwater7
CUSTER COUNTY RWD #3 · Custer County · 960 served · groundwater7
VICI · Dewey County · 668 served · groundwater7
LEHIGH · Coal County · 396 served · groundwater7
CLARITA-OLNEY RWD · Coal County · 360 served · purchased surface water7
COYLE · Logan County · 289 served · purchased surface water7
SHERWOOD FOREST MOBILE ESTATES · Oklahoma County · 172 served · groundwater7
HOLLIDAY OUTT MHP · Oklahoma County · 100 served · groundwater7
ROGERS CO RWD # 4 · Rogers County · 7,725 served · surface water6
STEPHENS CO RWD #5 · Stephens County · 6,426 served · purchased surface water6
NOBLE UTILITIES AUTHORITY · Cleveland County · 5,750 served · groundwater6
PORUM PWA · Muskogee County · 5,000 served · surface water6
FORT GIBSON · Muskogee County · 4,700 served · surface water6
SPENCER · Oklahoma County · 3,746 served · groundwater6
ADAIR CO RWD #2 · Adair County · 1,675 served · purchased surface water6
INOLA WATER WORKS INC · Rogers County · 1,589 served · purchased surface water6
MCINTOSH CO. RWD #13 (WELLS) · Okmulgee County · 1,465 served · groundwater6
MORRISON PUBLIC WORKS AUTH. · Noble County · 950 served · purchased surface water6
FORT COBB · Caddo County · 667 served · groundwater6
TERRAL · Jefferson County · 386 served · purchased surface water6
SUNNYLANE ESTATES · Cleveland County · 300 served · groundwater6
CHEROKEE CO. RWD # 16 (CHICKEN CREEK) · Cherokee County · 272 served · surface water6
GOLTRY · Alfalfa County · 268 served · purchased groundwater6
CHEROKEE CO. RWD # 16 (WOODHAVEN) · Cherokee County · 200 served · surface water6
SKYLINE MHP · Oklahoma County · 120 served · groundwater6
MANCHESTER · Grant County · 104 served · groundwater6
TOLAND ACRES MHP · Oklahoma County · 96 served · groundwater6
SUBURBAN MHP · Cherokee County · 50 served · groundwater6
SEMINOLE · Seminole County · 6,899 served · groundwater5
MAYES CO RWD # 9 · Mayes County · 2,578 served · surface water5
PRAGUE · Lincoln County · 2,395 served · groundwater5
HULBERT PWA · Cherokee County · 1,007 served · surface water5
WOODWARD CO RWD #2 · Woodward County · 920 served · groundwater5
BECKHAM CO RWD # 2 · Beckham County · 857 served · groundwater5
SOONER UTILITIES-VALLEY BROOK · Oklahoma County · 853 served · groundwater5
CARDINAL HILL SUBDIVISION · Marshall County · 475 served · groundwater5
RALSTON · Pawnee County · 335 served · groundwater5
OZARK RURAL WATER INC · Cherokee County · 99 served · purchased surface water5
SURREY HILLS · Texas County · 87 served · groundwater5
STEELMAN ESTATES · Pottawatomie County · 45 served · groundwater5
BETHANY · Oklahoma County · 20,307 served · groundwater under surface influence4
JENKS PWA · Tulsa County · 16,924 served · purchased surface water4
GUYMON · Texas County · 11,442 served · groundwater4
FALLS CREEK BAPTIST CONFERENCE CENTER · Murray County · 7,000 served · surface water4
HENRYETTA MUNICIPAL AUTHORITY · Okmulgee County · 6,096 served · surface water4
WAGONER CO. RWD #5 · Wagoner County · 4,251 served · surface water4
PAYNE CO RW CORP #3 · Payne County · 3,000 served · purchased surface water4
LOCUST GROVE PWA · Mayes County · 1,600 served · surface water4
STRATFORD · Garvin County · 1,575 served · groundwater4
OSAGE CO RWD #21 · Osage County · 1,500 served · groundwater under surface influence4
CHEROKEE CO. RWD #2 (KEYS) · Cherokee County · 1,493 served · surface water4
CRESCENT · Logan County · 1,411 served · groundwater4
ELMORE CITY RW CORP · Garvin County · 1,107 served · purchased surface water4
PONTOTOC CO RWD # 6 (FITTSTOWN) · Pontotoc County · 896 served · purchased groundwater4
BOKCHITO · Bryan County · 564 served · groundwater4
ALFALFA CO RWS & SWMD #1 · Alfalfa County · 550 served · groundwater4
BERNICE PWA · Delaware County · 504 served · purchased surface water4
DELAWARE CO RWD # 1 · Delaware County · 465 served · purchased surface water4
BILLINGS PWA · Noble County · 436 served · groundwater4
SPAVINAW · Mayes County · 432 served · surface water4
BEAVER CO RWD #1 TURPIN · Beaver County · 412 served · groundwater4
CALVIN · Hughes County · 300 served · groundwater4
JET · Alfalfa County · 230 served · groundwater4
NASH · Grant County · 224 served · groundwater4
SOUTHERN HILLS ESTATES · Grady County · 200 served · groundwater4
TEXAS COUNTY RWD #1 · Texas County · 135 served · groundwater4
CHOCTAW ESTATES, LLC · Oklahoma County · 105 served · groundwater4
BEAVER CO RWD #2 (GATE) · Beaver County · 87 served · groundwater4
NOBLE ESTATES MHP · Cleveland County · 75 served · groundwater4
DIAMONDHEAD HOMEOWNERS ASSOC · Osage County · 50 served · purchased surface water4
ROCK CREEK · Logan County · 33 served · groundwater4
BARTLESVILLE · Washington County · 34,748 served · surface water3
MUSTANG, CITY OF · Canadian County · 18,576 served · purchased surface water3
WAGONER · Wagoner County · 7,982 served · surface water3
MANNFORD · Creek County · 3,935 served · surface water3
GRADY CO RWD #6 · Grady County · 3,930 served · groundwater3
MAYES CO RWD # 5 · Mayes County · 3,360 served · purchased surface water3
DRUMRIGHT · Creek County · 2,876 served · groundwater3
KAY CO RWD #1 · Kay County · 1,765 served · purchased surface water3
WASHITA CO RWD #2 · Washita County · 1,032 served · groundwater3
ALLEN PWA · Pontotoc County · 937 served · groundwater3
WASHINGTON CO RWD #5 · Washington County · 900 served · purchased surface water3
ROGER MILLS RWD # 2 (RED STAR) · Roger Mills County · 800 served · groundwater3
LEEDEY · Dewey County · 436 served · purchased groundwater3
LINCOLN CO RWD #1 · Lincoln County · 404 served · surface water3
RIPLEY PWA · Payne County · 376 served · groundwater3
4T INVESTORS LLC · Beaver County · 98 served · groundwater3
SUNNYSIDE WATER ASSOC · Comanche County · 50 served · purchased surface water3
NORMAN UTILITIES AUTHORITY · Cleveland County · 104,868 served · surface water2
ENID · Garfield County · 49,347 served · surface water2
OWASSO · Tulsa County · 23,000 served · purchased surface water2
ADA · Pontotoc County · 22,600 served · groundwater2
DEL CITY · Oklahoma County · 22,128 served · surface water2
BIXBY PUBLIC WORKS AUTHORITY · Tulsa County · 18,750 served · purchased surface water2
LOGAN CO RWD #1 · Logan County · 8,907 served · purchased surface water2
CUSHING · Payne County · 8,371 served · groundwater2
MAYES CO RWD # 2 · Mayes County · 6,280 served · purchased surface water2
ALVA · Woods County · 5,208 served · groundwater2
TRI-COUNTY RWD #2 · Pottawatomie County · 5,172 served · groundwater2
LONE GROVE · Carter County · 4,863 served · groundwater2
MURRAY CO RWD # 1 · Murray County · 4,800 served · groundwater2
MARLOW MUNICIPAL AUTHORITY · Stephens County · 4,600 served · groundwater2
TUTTLE · Grady County · 4,500 served · groundwater2
MAYES CO RWD #4 · Mayes County · 4,183 served · purchased surface water2
OKLA ORDNANCE WORKS AUTHORITY · Mayes County · 4,000 served · surface water2
CADDO CO RWD #3 · Caddo County · 3,900 served · groundwater2
BRISTOW MUNICIPAL AUTHORITY · Creek County · 3,700 served · groundwater2
CONSOLIDATED RWD #3 CREEK CO · Creek County · 3,500 served · purchased surface water2
ELGIN PWA · Comanche County · 3,300 served · groundwater2
TONKAWA · Kay County · 3,299 served · groundwater2
STILWELL · Adair County · 3,276 served · surface water2
SEQUOYAH CO. RWD #7 · Sequoyah County · 2,948 served · purchased surface water2
MANGUM PWS · Greer County · 2,924 served · groundwater2
JOHNSTON CO RWD #3 · Johnston County · 2,783 served · groundwater2
COMMERCE · Ottawa County · 2,645 served · groundwater2
ADAIR CO RWD #3 · Adair County · 2,598 served · purchased surface water2
BOWLEGS LIMA WATER · Seminole County · 2,500 served · groundwater2
GRADY CO RWD #7 (NINNEKAH) · Grady County · 2,425 served · groundwater2
COLBERT PUA · Bryan County · 2,312 served · groundwater2
Source: U.S. EPA Safe Drinking Water Information System (SDWIS). "Health-based" counts maximum-contaminant-level, treatment-technique and maximum-residual-disinfectant-level violations recorded since 2015. A violation on record — especially a resolved one — is not a statement about water quality today; contact the water system or your state drinking-water program for current information.