987 community and non-transient non-community water systems are listed for Oklahoma in EPA SDWIS. 170 were sampled under UCMR 5; 69 of those had at least one PFAS result at or above the reporting level, and 14 had a highest single result at or above a 2024 EPA limit (PFOA or PFOS 4 ppt, or Hazard Index 1).
Oklahoma map · Download: systems (CSV) · all results (CSV, gzip)
These are monitoring results collected under EPA's Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) at entry points, where treated water enters the distribution system; they are not tap-water samples. They are not compliance determinations: compliance with EPA's 2024 PFAS limits is judged on running annual averages of compliance monitoring, required from 2029, so a single UCMR 5 result at or above a limit is not a violation. “< MRL” means the compound was not quantified at EPA's minimum reporting level; it does not mean zero.
Sampled under UCMR 5 (170)
| System | PWSID | City | Population | Highest PFOA (ppt) | Highest PFOS (ppt) | Highest HI | Highest single result |
|---|---|---|---|---|---|---|---|
| Ada | OK2006201 | Ada | 22,600 | <MRL | <MRL | 0 | No PFAS detected |
| Adamson Rwd #8 | OK3006112 | Hartshorne | 4,221 | <MRL | <MRL | 0 | Other PFAS detected |
| Alfalfa Co Rws & Swmd #1 North | OK2000201 | Byron | 600 | <MRL | <MRL | 0 | No PFAS detected |
| Altus | OK1011501 | Altus | 18,717 | <MRL | <MRL | 0.33 | Hazard Index below its limit |
| Altus Afb | OK3003303 | Altus | 4,617 | <MRL | <MRL | 0 | Other PFAS detected |
| Alva | OK2007603 | Alva | 5,208 | <MRL | <MRL | 0 | No PFAS detected |
| Anadarko Public Works Authority | OK1010806 | Anadarko | 6,804 | <MRL | <MRL | 0 | No PFAS detected |
| Ardmore | OK1010814 | Ardmore | 24,893 | <MRL | <MRL | 0 | No PFAS detected |
| Bartlesville | OK1021401 | Bartlesville | 34,748 | <MRL | <MRL | 0 | Other PFAS detected |
| Bethany | OK2005519 | Bethany | 20,307 | 5.3 | 5.2 | 0.902 | PFOA 1–3 × its limit |
| Bixby Public Works Authority | OK3007243 | Bixby | 18,750 | <MRL | <MRL | 0 | No PFAS detected |
| Blackwell Municipal Authority | OK1021101 | Blackwell | 7,668 | <MRL | <MRL | 0 | No PFAS detected |
| Bristow Municipal Authority | OK2001910 | Bristow | 3,700 | <MRL | <MRL | 0 | No PFAS detected |
| Broken Arrow Municipal Authority | OK1021508 | Broken Arrow | 116,330 | <MRL | 51.3 | 1.522 | PFOS ≥ 3 × its limit |
| Broken Bow Pwa | OK1010214 | Broken Bow | 4,320 | <MRL | <MRL | 0 | No PFAS detected |
| Bryan Co. Rws & Swmd #2 | OK1010604 | Mead | 6,270 | <MRL | <MRL | 0 | No PFAS detected |
| Bryan County Rural Water District #5 | OK3000704 | Durant | 8,325 | <MRL | <MRL | 0 | Other PFAS detected |
| Caddo Co Rwd #3 | OK2000816 | Carnegie | 3,900 | <MRL | <MRL | 0 | No PFAS detected |
| Checotah Pwa | OK1020515 | Checotah | 3,481 | <MRL | <MRL | 0 | Other PFAS detected |
| Cherokee Co. Rwd #11 | OK1221637 | Hulbert | 3,395 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| Chickasaw Winstar Casino | 062004336 | Ada | 8,376 | <MRL | <MRL | 0 | No PFAS detected |
| Chickasha Municipal Authority | OK1010821 | Chickasha | 16,036 | <MRL | <MRL | 0 | No PFAS detected |
| Choctaw Ua | OK2005510 | Choctaw | 3,926 | <MRL | <MRL | 0 | No PFAS detected |
| Claremore | OK1021512 | Claremore | 15,873 | <MRL | <MRL | 0 | No PFAS detected |
| Clinton | OK1010828 | Clinton | 8,883 | <MRL | <MRL | 0 | Other PFAS detected |
| Collinsville | OK1021505 | Collinsville | 5,400 | <MRL | <MRL | 0 | No PFAS detected |
| Consolidated Rwd #3 Creek Co | OK3001916 | Sapulpa | 3,500 | <MRL | <MRL | 0 | Other PFAS detected |
| Coweta Pwa | OK1021509 | Coweta | 9,450 | <MRL | <MRL | 0.55 | Hazard Index below its limit |
| Craig Co Rwd #2 | OK3001802 | Vinita | 4,250 | <MRL | <MRL | 0 | No PFAS detected |
| Creek Co Rwd # 1 | OK1020419 | Kellyville | 5,675 | <MRL | <MRL | 0 | Other PFAS detected |
| Creek Co Rwd # 2 | OK3001902 | Jenks | 12,788 | <MRL | <MRL | 0 | No PFAS detected |
| Cushing | OK2006061 | Cushing | 8,371 | <MRL | <MRL | 0 | No PFAS detected |
| Deer Creek Rural Water Corp | OK2005504 | Edmond | 5,500 | <MRL | <MRL | 0 | No PFAS detected |
| Del City | OK1020805 | Del City | 22,128 | <MRL | <MRL | 0 | Other PFAS detected |
| Delaware Co Rwd # 7 | OK3002138 | Afton | 400 | <MRL | <MRL | 0 | Other PFAS detected |
| Dewey Co Rwd #2 | OK2002202 | Camargo | 150 | <MRL | <MRL | 0 | No PFAS detected |
| Dewey Public Works Authority | OK3007402 | Dewey | 3,490 | <MRL | <MRL | 0 | Other PFAS detected |
| Duncan Public Utilities Authority | OK1010809 | Duncan | 23,000 | <MRL | <MRL | 0 | Other PFAS detected |
| Durant Utilities Authority | OK1010601 | Durant | 15,545 | <MRL | <MRL | 0 | No PFAS detected |
| Eastern Shawnee | 061000101 | Wyandotte | 796 | <MRL | <MRL | 0 | No PFAS detected |
| Edmond Pwa | OK1020723 | Edmond | 79,408 | <MRL | 6.4 | 0.45 | PFOS 1–3 × its limit |
| El Reno | OK2000902 | El Reno | 16,212 | <MRL | <MRL | 0 | No PFAS detected |
| Elk City | OK2000501 | Elk City | 10,510 | <MRL | <MRL | 0 | No PFAS detected |
| Enid | OK2002412 | Enid | 49,347 | <MRL | <MRL | 0 | No PFAS detected |
| Eufaula Pwa | OK1020514 | Eufaula | 2,766 | <MRL | <MRL | 0 | Other PFAS detected |
| Falls Creek Baptist Conference Center | OK1010840 | Oklahoma City | 7,000 | <MRL | <MRL | 0 | No PFAS detected |
| Fort Gibson | OK1021622 | Fort Gibson | 4,700 | <MRL | <MRL | 0 | No PFAS detected |
| Fort Sill Hqusafacfs | OK3001601 | Fort Still | 23,000 | <MRL | <MRL | 0 | No PFAS detected |
| Frederick | OK1011401 | Frederick | 3,940 | <MRL | <MRL | 0.3 | Hazard Index below its limit |
| Garvin Co Rwd #4 | OK3002503 | Pauls Valley | 1,340 | <MRL | <MRL | 0 | Other PFAS detected |
| Glenpool Water | OK3007223 | Glenpool | 12,500 | <MRL | <MRL | 0 | No PFAS detected |
| Grady Co Rwd #6 | OK3002603 | Amber | 3,930 | <MRL | <MRL | 0 | No PFAS detected |
| Grove Municipal Services Auth. | OK1021614 | Grove | 7,311 | <MRL | <MRL | 0 | No PFAS detected |
| Guthrie | OK1020903 | Guthrie | 9,925 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| Guymon | OK2007003 | Guymon | 11,442 | <MRL | <MRL | 0 | No PFAS detected |
| Hallett Public Works Authority | OK2005905 | Hallett | 168 | <MRL | <MRL | 0 | No PFAS detected |
| Harrah | OK2005506 | Harrah | 4,190 | <MRL | <MRL | 0 | No PFAS detected |
| Heavener Utility Auth - Psg | OK1020101 | Heavener | 3,000 | <MRL | <MRL | 0 | Other PFAS detected |
| Henryetta Municipal Authority | OK1020709 | Henryetta | 6,096 | <MRL | <MRL | 0 | Other PFAS detected |
| Hobart | OK1011502 | Hobart | 3,746 | <MRL | <MRL | 0 | Other PFAS detected |
| Holdenville | OK1020803 | Holdenville | 4,732 | <MRL | <MRL | 0 | Other PFAS detected |
| Hugo Municipal Authority | OK1010314 | Hugo | 5,536 | <MRL | <MRL | 0 | No PFAS detected |
| Hydro Pwa | OK2000812 | Hydro | 1,060 | <MRL | <MRL | 0 | No PFAS detected |
| Idabel Pwa | OK1010203 | Idabel | 6,952 | <MRL | <MRL | 0 | No PFAS detected |
| Jefferson Co Cons Rwd #1 | OK3003401 | Hastings | 8,398 | <MRL | <MRL | 0 | Other PFAS detected |
| Jenks Pwa | OK3007201 | Jenks | 16,924 | <MRL | <MRL | 0 | No PFAS detected |
| Kay Co Rwd #5 (Dale Water Corp) | OK3003603 | Newkirk | 765 | <MRL | 23 | 1.002 | PFOS ≥ 3 × its limit |
| Ketchum Pwa | OK1021612 | Ketchum | 4,025 | <MRL | <MRL | 0 | No PFAS detected |
| Kingfisher | OK2003702 | Kingfisher | 5,073 | <MRL | <MRL | 0 | No PFAS detected |
| Konawa School | OK2006713 | Konawa | 600 | <MRL | <MRL | 0 | No PFAS detected |
| Lawton | OK1011303 | Lawton | 92,757 | <MRL | <MRL | 0 | No PFAS detected |
| Leflore Co. Rwd #14 | OK3004001 | Spiro | 9,077 | <MRL | <MRL | 0 | No PFAS detected |
| Leflore Co. Rwd #18 | OK3004009 | Heavener | 3,870 | <MRL | <MRL | 0 | Other PFAS detected |
| Leflore Co. Rwd #2 | OK3004007 | Pocola | 4,700 | <MRL | <MRL | 0 | Other PFAS detected |
| Logan Co Rwd #1 | OK2004207 | Guthrie | 8,907 | 4.3 | <MRL | 0.003 | PFOA 1–3 × its limit |
| Lone Grove | OK2001007 | Lone Grove | 4,863 | <MRL | <MRL | 0 | No PFAS detected |
| Longtown Rw&Sd #1 (Pittsburg Co.) | OK1020623 | Eufaula | 5,444 | <MRL | <MRL | 0 | Other PFAS detected |
| Madill | OK1010820 | Madill | 3,410 | <MRL | <MRL | 0 | No PFAS detected |
| Mannford | OK1020909 | Mannford | 3,935 | <MRL | <MRL | 0 | Other PFAS detected |
| Marlow Municipal Authority | OK2006907 | Marlow | 4,600 | <MRL | <MRL | 0 | No PFAS detected |
| Marshall County Rural Water District #2 | OK1010848 | Madill | 17,587 | <MRL | <MRL | 0 | No PFAS detected |
| Mayes Co Rwd # 2 | OK3004608 | Chouteau | 6,280 | <MRL | 17.7 | 0 | PFOS ≥ 3 × its limit |
| Mayes Co Rwd # 5 | OK3004616 | Adair | 3,360 | <MRL | <MRL | 0 | No PFAS detected |
| Mayes Co Rwd # 6 | OK1021666 | Big Cabin | 3,750 | <MRL | <MRL | 0 | No PFAS detected |
| Mayes Co Rwd #4 | OK3004617 | Pryor | 4,183 | <MRL | <MRL | 0 | Other PFAS detected |
| Mcalester Pwa | OK1020609 | Mcalester | 18,206 | <MRL | <MRL | 0 | No PFAS detected |
| Mccurtain Co. Rwd #1 | OK3004806 | Haworth | 3,842 | <MRL | <MRL | 0 | No PFAS detected |
| Mccurtain Co. Rwd #7 | OK3004801 | Garvin | 1,847 | <MRL | <MRL | 0 | No PFAS detected |
| Mccurtain Co. Rwd #8 (Mt. Fork Water) | OK1010207 | Broken Bow | 5,685 | <MRL | <MRL | 0 | No PFAS detected |
| Mccurtain Co. Rwd #9 | OK3004820 | Valliant | 999 | <MRL | <MRL | 0 | No PFAS detected |
| Mcintosh Co. Rwd #8 (Texanna) | OK1020529 | Eufaula | 3,574 | <MRL | <MRL | 0 | Other PFAS detected |
| Miami | OK2005813 | Miami | 13,704 | <MRL | <MRL | 0 | No PFAS detected |
| Midwest City | OK1020806 | Midwest City | 55,935 | <MRL | <MRL | 0 | No PFAS detected |
| Moore Public Works Authority | OK2001412 | Moore | 55,083 | <MRL | <MRL | 0 | No PFAS detected |
| Murray Co Rwd # 1 | OK2005012 | Sulphur | 4,800 | <MRL | <MRL | 0 | No PFAS detected |
| Muskogee Co. Rwd #1 (Oktaha) | OK3005106 | Oktaha | 2,280 | <MRL | <MRL | 0 | No PFAS detected |
| Muskogee Co. Rwd #5 | OK3005107 | Muskogee | 4,135 | <MRL | <MRL | 0 | No PFAS detected |
| Muskogee Municipal Authority | OK1021607 | Muskogee | 38,310 | <MRL | <MRL | 0 | No PFAS detected |
| Mustang, City Of | OK2000922 | Mustang | 18,576 | <MRL | <MRL | 0 | No PFAS detected |
| Newcastle | OK2004704 | Newcastle | 7,900 | <MRL | <MRL | 0 | Other PFAS detected |
| Nichols Hills | OK2005501 | Nichols Hills | 4,020 | <MRL | <MRL | 0 | No PFAS detected |
| Noble Utilities Authority | OK2001411 | Noble | 5,750 | <MRL | <MRL | 0.71 | Hazard Index below its limit |
| Norman Utilities Authority | OK1020801 | Norman | 104,868 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| Nowata Municipal Authority | OK1021503 | Nowata | 3,971 | <MRL | 9.4 | 0.48 | PFOS 1–3 × its limit |
| Okfuskee Co. Rwd #3 | OK3005401 | Okemah | 1,823 | <MRL | <MRL | 0 | Other PFAS detected |
| Okla Christian University | OK7005566 | Edmond | 1,800 | <MRL | <MRL | 0 | No PFAS detected |
| Okla Ordnance Works Authority | OK1021602 | Pryor | 4,000 | <MRL | 5.7 | 0 | PFOS 1–3 × its limit |
| Oklahoma City | OK1020902 | Oklahoma City | 644,000 | <MRL | <MRL | 0 | Other PFAS detected |
| Oklahoma University | OK3001414 | Norman | 34,000 | <MRL | <MRL | 0 | No PFAS detected |
| Okmulgee Co. Rwd #6 (Hectorville) | OK3005611 | Mounds | 8,370 | <MRL | <MRL | 0 | Other PFAS detected |
| Okmulgee Pwa | OK1020708 | Okmulgee | 13,495 | <MRL | <MRL | 0 | No PFAS detected |
| Osage Co Rwd #15 | OK3005736 | Skiatook | 6,647 | <MRL | <MRL | 0 | Other PFAS detected |
| Osu Water Plant | OK1020910 | Stillwater | 13,000 | <MRL | <MRL | 0 | Other PFAS detected |
| Ottawa Co Rwd # 4 | OK2005801 | Fairland | 652 | <MRL | <MRL | 0 | No PFAS detected |
| Owasso | OK3007218 | Owasso | 23,000 | <MRL | <MRL | 0 | No PFAS detected |
| Pauls Valley | OK1010808 | Pauls Valley | 6,256 | <MRL | <MRL | 0 | Other PFAS detected |
| Pawhuska | OK1021301 | Pawhuska | 3,800 | <MRL | <MRL | 0 | No PFAS detected |
| Perry Water & Light Dept | OK1021206 | Perry | 5,230 | <MRL | <MRL | 0 | Other PFAS detected |
| Piedmont Municipal Authority | OK2000909 | Piedmont | 7,542 | <MRL | <MRL | 0 | Other PFAS detected |
| Pittsburg Co. Rwd #11 (Kiowa) | OK3006105 | Mcalester | 790 | <MRL | <MRL | 0 | Other PFAS detected |
| Pittsburg Co. Rwd #16 | OK3006106 | Mcalester | 1,268 | <MRL | <MRL | 0 | Other PFAS detected |
| Ponca City Mun Water | OK1021202 | Ponca City | 27,155 | <MRL | 8.1 | 0.673 | PFOS 1–3 × its limit |
| Pontotoc Co Rwd # 7 | OK3006215 | Ada | 4,863 | <MRL | <MRL | 0 | No PFAS detected |
| Pontotoc Co Rwd # 8 | OK2006215 | Ada | 4,250 | <MRL | <MRL | 0 | No PFAS detected |
| Porum Pwa | OK1020302 | Porum | 5,000 | <MRL | <MRL | 0 | Other PFAS detected |
| Poteau Pwa | OK3004015 | Poteau | 7,939 | <MRL | <MRL | 0 | No PFAS detected |
| Pottawatomie Co. Rwd #3 (Dale Plant) | 061020808 | 5,780 | <MRL | 4.1 | 0.33 | PFOS 1–3 × its limit | |
| Pryor | OK3004611 | Pryor | 8,784 | <MRL | <MRL | 0 | No PFAS detected |
| Purcell | OK2004701 | Purcell | 6,693 | <MRL | <MRL | 0 | No PFAS detected |
| Pushmataha Co. Rwd #3 | OK1010318 | Antlers | 4,825 | <MRL | <MRL | 0 | No PFAS detected |
| Quapaw Downstream Casino & Resort | 062005840 | Quapaw | 6,000 | <MRL | <MRL | 0 | No PFAS detected |
| Ramona Public Works Authority | OK3007408 | Ramona | 564 | <MRL | <MRL | 0 | Other PFAS detected |
| Randlett Pwa | OK3001702 | Randlett | 320 | <MRL | <MRL | 0 | No PFAS detected |
| Rogers Co Rwd # 3 Cot Sta | OK3006650 | Claremore | 10,750 | <MRL | <MRL | 0 | No PFAS detected |
| Rogers Co Rwd # 3 Lake Plant | OK1021513 | Claremore | 10,470 | <MRL | <MRL | 0 | No PFAS detected |
| Rogers Co Rwd # 4 | OK1021506 | Oologah | 7,725 | <MRL | <MRL | 0 | Other PFAS detected |
| Rogers Co Rwd # 5 | OK1021507 | Claremore | 11,782 | <MRL | <MRL | 0 | No PFAS detected |
| Rogers Co Rwd # 8 | OK3006606 | Claremore | 3,375 | <MRL | <MRL | 0 | Other PFAS detected |
| Sallisaw | OK1020206 | Sallisaw | 8,510 | <MRL | <MRL | 0 | No PFAS detected |
| Sand Springs | OK1020420 | Sand Springs | 28,774 | <MRL | <MRL | 0 | No PFAS detected |
| Sapulpa | OK1020404 | Sapulpa | 19,702 | <MRL | <MRL | 0 | No PFAS detected |
| Sapulpa Rural Water Company | OK3001904 | Sapulpa | 5,810 | <MRL | <MRL | 0 | No PFAS detected |
| Sayre | OK2000508 | Sayre | 4,375 | <MRL | <MRL | 0 | No PFAS detected |
| Seminole | OK2006720 | Seminole | 6,899 | <MRL | <MRL | 0 | No PFAS detected |
| Sequoyah Co. Rwd #8 | OK1020210 | Sallisaw | 13,460 | <MRL | <MRL | 0 | No PFAS detected |
| Shawnee Municipal Authority | OK1020504 | Shawnee | 29,990 | <MRL | <MRL | 0 | Other PFAS detected |
| Skiatook Pwa | OK1021313 | Skiatook | 8,110 | <MRL | <MRL | 0 | Other PFAS detected |
| Southern Okla Water Corp | OK1010830 | Ardmore | 11,250 | <MRL | <MRL | 0 | Other PFAS detected |
| Spencer | OK2005509 | Spencer | 3,746 | <MRL | <MRL | 0 | No PFAS detected |
| Stephens Co Rwd #5 | OK2006969 | Marlow | 6,426 | <MRL | <MRL | 0 | No PFAS detected |
| Stillwater Utilities Authority | OK1021220 | Stillwater | 53,000 | <MRL | 8.6 | 0.641 | PFOS 1–3 × its limit |
| Sulphur | OK2005001 | Sulphur | 4,929 | <MRL | <MRL | 0 | No PFAS detected |
| Tahlequah Pwa | OK1021701 | Tahlequah | 14,458 | <MRL | <MRL | 0.003 | Hazard Index below its limit |
| Tecumseh Utility Authority | OK1020506 | Tecumseh | 6,098 | <MRL | <MRL | 0 | Other PFAS detected |
| Tinker Air Force Base | OK2005508 | Tinker Afb | 24,645 | <MRL | <MRL | 0.52 | Hazard Index below its limit |
| Tri-County Rwd #2 | OK2006362 | Earlsboro | 5,172 | <MRL | 6 | 2.2 | Hazard Index 1–3 × its limit |
| Tulsa | OK1020418 | Tulsa | 413,000 | <MRL | <MRL | 0 | No PFAS detected |
| Tuttle | OK2002608 | Tuttle | 4,500 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| Vinita Utilities Authority | OK1021611 | Vinita | 6,472 | <MRL | <MRL | 0 | No PFAS detected |
| Wagoner | OK1021649 | Wagoner | 7,982 | <MRL | <MRL | 0 | No PFAS detected |
| Wagoner Co. Rwd #4 | OK1021529 | Broken Arrow | 37,658 | <MRL | 29.5 | 1.232 | PFOS ≥ 3 × its limit |
| Wagoner Co. Rwd #5 | OK1021528 | Coweta | 4,251 | <MRL | 34 | 1.502 | PFOS ≥ 3 × its limit |
| Wagoner Co. Rwd #7 (New) | OK1221626 | Okay | 1,110 | <MRL | <MRL | 0 | No PFAS detected |
| Wagoner Co. Rwd #9 | OK1021527 | Wagoner | 4,363 | <MRL | <MRL | 0 | No PFAS detected |
| Washington Co Rwd #3 (New,#1) | OK1021418 | Collinsville | 25,375 | <MRL | <MRL | 0 | No PFAS detected |
| Watonga | OK2000602 | Watonga | 2,816 | <MRL | <MRL | 0 | No PFAS detected |
| Weatherford | OK2002002 | Weatherford | 10,833 | <MRL | <MRL | 0 | No PFAS detected |
| Wewoka Public Works Authority | OK1020510 | Wewoka | 3,450 | <MRL | <MRL | 0 | Other PFAS detected |
| Woodward | OK2007701 | Woodward | 15,000 | <MRL | <MRL | 0 | No PFAS detected |
| Yukon | OK2000910 | Yukon | 22,498 | <MRL | <MRL | 0 | No PFAS detected |
Not tested under UCMR 5 (817)
UCMR 5 required monitoring by systems serving 3,300 or more people and by a representative sample of smaller systems. The systems below have no UCMR 5 results in EPA's data. Not tested is not the same as not detected: the absence of results says nothing about PFAS in their water.
| System | PWSID | Type | City | Population | Counties |
|---|---|---|---|---|---|
| 37 Mobile Homes | OK4001470 | CWS | Riverside | 50 | Cleveland County |
| 4T Investors Llc | OK2000453 | CWS | Liberal | 98 | Beaver County |
| 51 East Water | OK3006003 | CWS | Stillwater | 2,500 | Payne County |
| Abes Rv Park | OK5005548 | CWS | Oklahoma City | 175 | Oklahoma County |
| Absentee Shawnee Health Center | OK4001492 | NTNCWS | Shawnee | 87 | Cleveland County |
| Absentee Shawnee Little Axe South Casino | 062001458 | NTNCWS | Shawnee | 825 | |
| Achille | OK2000707 | CWS | Achille | 506 | Bryan County |
| Adair | OK1021613 | CWS | Adair | 704 | Mayes County |
| Adair Co Rwd #1 (Cherry Tree) | OK3000104 | CWS | Stilwell | 2,000 | Adair County, Cherokee County, Sequoyah County |
| Adair Co Rwd #2 | OK3000105 | CWS | Stilwell | 1,675 | Adair County |
| Adair Co Rwd #3 | OK3000106 | CWS | Westville | 2,598 | Adair County |
| Adair Co Rwd #4 | OK3000107 | CWS | Stilwell | 1,025 | Adair County |
| Adair Co Rwd #5 | OK1021770 | CWS | Westville | 675 | Adair County |
| Adair Co Rws & Swmd #6 | OK2000145 | CWS | Kansas | 27 | Adair County |
| Afton Pwa | OK1021696 | CWS | Afton | 1,428 | Delaware County, Ottawa County |
| Alex | OK2002603 | CWS | Alex | 635 | Grady County |
| Alfalfa Co Rws & Swmd #1 | OK2000202 | CWS | Byron | 550 | Alfalfa County |
| Aline, Town Of | OK2000206 | CWS | Aline | 214 | Alfalfa County |
| Allen Pwa | OK2006202 | CWS | Allen | 937 | Hughes County, Pontotoc County |
| Ames | OK2004403 | CWS | Ames | 199 | Major County |
| Antlers Pwa | OK1010302 | CWS | Antlers | 2,547 | Pushmataha County |
| Apache | OK2000806 | CWS | Apache | 1,521 | Caddo County |
| Arapaho | OK3002004 | CWS | Arapaho | 748 | Custer County |
| Arcadia Public Works Authority | OK8005538 | CWS | Arcadia | 300 | Oklahoma County |
| Arkoma | OK3004013 | CWS | Arkoma | 2,180 | Le Flore County |
| Arnett | OK2002305 | CWS | Arnett | 496 | Ellis County |
| Asher Util Dev Auth | OK3006311 | CWS | Asher | 375 | Pottawatomie County |
| Atoka | OK1010401 | CWS | Atoka | 2,988 | Atoka County |
| Atoka Co. Rwd #1 (Wardville) | OK3000305 | CWS | Kiowa | 125 | Atoka County |
| Atoka Co. Rwd #2 | OK3000306 | CWS | Atoka | 500 | Atoka County |
| Atoka Co. Rwd #3 (Caney) | OK2000302 | CWS | Caddo | 1,500 | Atoka County |
| Atoka Co. Rws & Swmd #4 | OK1010412 | CWS | Atoka | 3,000 | Atoka County, Coal County |
| Avant Utilities Authority | OK1021305 | CWS | Avant | 361 | Osage County |
| Balko School | OK2000416 | NTNCWS | Balko | 200 | Beaver County |
| Bar-Dew Water Assoc Inc | OK3007406 | CWS | Dewey | 130 | Washington County |
| Barnes School | OK4005547 | NTNCWS | Midwest City | 371 | Oklahoma County |
| Barnsdall | OK1021304 | CWS | Barnsdall | 1,243 | Osage County |
| Beaver | OK2000404 | CWS | Beaver | 1,570 | Beaver County |
| Beaver Co Rwd #1 Turpin | OK2000402 | CWS | Turpin | 412 | Beaver County |
| Beaver Co Rwd #2 (Gate) | OK2000405 | CWS | Gate | 87 | Beaver County |
| Beckham Co Rwd # 1 | OK2000505 | CWS | Carter | 1,595 | Beckham County, Greer County, Jackson County, Kiowa County, Washita County |
| Beckham Co Rwd # 2 | OK2000510 | CWS | Erick | 857 | Beckham County, Roger Mills County |
| Beckham Co Rwd # 3 | OK2000547 | CWS | Elk City | 1,617 | Beckham County, Custer County, Roger Mills County, Washita County |
| Beggs Public Works Authority | OK1020707 | CWS | Beggs | 1,364 | Okmulgee County |
| Bernice Pwa | OK2002166 | CWS | Bernice | 504 | Delaware County |
| Bessie | OK3007504 | CWS | Bessie | 190 | Washita County |
| Big Cabin Pwa | OK3001805 | CWS | Big Cabin | 293 | Craig County |
| Billings Pwa | OK2005201 | CWS | Billings | 436 | Noble County |
| Binger Pwa | OK2000803 | CWS | Binger | 708 | Caddo County |
| Bixby Estates | OK3007231 | CWS | Dallas | 225 | Tulsa County |
| Blair Public Works Authority | OK2003304 | CWS | Blair | 894 | Greer County, Jackson County |
| Blanchard | OK3004710 | CWS | Blanchard | 2,966 | McClain County |
| Blue Jacket Pwa | OK2001802 | CWS | Blue Jacket | 274 | Craig County |
| Blue Quail Estates | OK2000907 | CWS | Yukon | 350 | Canadian County |
| Blue Quail Logan County | OK2004211 | CWS | Yukon | 188 | Logan County |
| Boiling Springs Estates | OK2007733 | CWS | Woodward | 40 | Woodward County |
| Boise City Pwa | OK2001303 | CWS | Boise City | 1,483 | Cimarron County |
| Bokchito | OK2000704 | CWS | Bokchito | 564 | Bryan County |
| Bokoshe Pwa | OK3004012 | CWS | Bokoshe | 450 | Le Flore County |
| Boswell Public Works Authority | OK2001205 | CWS | Boswell | 932 | Choctaw County |
| Bowlegs Lima Water | OK2006701 | CWS | Bowlegs | 2,500 | Seminole County |
| Boynton Pwa | OK3005127 | CWS | Boynton | 450 | Muskogee County |
| Boys Ranch Town | OK4005580 | CWS | Edmond | 75 | Oklahoma County |
| Braggs Water Works | OK2005104 | CWS | Braggs | 1,030 | Muskogee County |
| Braman | OK3003616 | CWS | Braman | 244 | Kay County |
| Braums Dairy & Processing Plt | OK1010852 | NTNCWS | Tuttle | 125 | Grady County |
| Breckinridge Pwa | OK2002420 | CWS | Enid | 239 | Garfield County |
| Bridge Creek School | OK2002694 | NTNCWS | Blanchard | 800 | Grady County |
| Bridgeport | OK2000804 | CWS | Hinton | 109 | Caddo County |
| Bromide | OK2003517 | CWS | Bromide | 163 | Coal County, Johnston County |
| Brooksville | OK2006363 | CWS | Tecumseh | 90 | Pottawatomie County |
| Bryan Co. Rwd #6 | OK3000725 | CWS | Caddo | 990 | Bryan County |
| Bryan Co. Rwd #7 | OK2000705 | CWS | Bennington | 302 | Bryan County |
| Bryan Co. Rwd #9 | OK2000713 | CWS | Hendrix | 820 | Bryan County |
| Buckhorn Rwd #2 | OK3005002 | CWS | Sulphur | 1,260 | Murray County |
| Buffalo | OK2003003 | CWS | Buffalo | 1,200 | Harper County |
| Burbank | OK3005752 | CWS | Burbank | 150 | Osage County |
| Burlington | OK3000202 | CWS | Burlington | 156 | Alfalfa County |
| Burns Flat Pws | OK2007505 | CWS | Burns Flat | 2,057 | Washita County |
| Burnt Cabin Rwd | OK1021763 | CWS | Park Hill | 208 | Cherokee County |
| Butler | OK3002001 | CWS | Butler | 345 | Custer County |
| Byars | OK2004709 | CWS | Byars | 275 | McClain County |
| Caair | OK6002161 | CWS | Jay | 100 | Delaware County |
| Cache | OK2001607 | CWS | Cache | 2,371 | Comanche County |
| Caddo | OK2000703 | CWS | Caddo | 944 | Bryan County |
| Caddo Co Rwd #1 (Lookeba) | OK2000802 | CWS | Lookeba | 275 | Caddo County |
| Calera Pwa | OK2000702 | CWS | Calera | 2,815 | Bryan County |
| Calumet Pwa | OK2000904 | CWS | Calumet | 600 | Canadian County |
| Calvin | OK2003201 | CWS | Calvin | 300 | Hughes County |
| Cameron Pwa | OK3004011 | CWS | Poteau | 302 | Le Flore County |
| Camp Gruber / Ok Military Dept | OK1021772 | NTNCWS | Braggs | 2,469 | Muskogee County |
| Camping World Of Okc East | OK8005556 | NTNCWS | Oklahoma City | 50 | Oklahoma County |
| Canadian Co Rwd # 1 | OK2000908 | CWS | Calumet | 750 | Canadian County |
| Canadian Co Rwd # 4 | OK2000930 | CWS | El Reno | 907 | Canadian County |
| Canadian Co Rws & Swmd #5 | OK3000901 | CWS | El Reno | 316 | Canadian County |
| Canadian Co Water Authority | OK3000903 | CWS | El Reno | 1,700 | Canadian County |
| Canoe Mountain Water System | OK1021778 | CWS | Vian | 37 | Cherokee County, Sequoyah County |
| Canton | OK2000607 | CWS | Canton | 650 | Blaine County |
| Canute | OK2007503 | CWS | Canute | 524 | Washita County |
| Cardinal Hill Subdivision | OK2004539 | CWS | Madill | 475 | Marshall County |
| Carmen Public Works Authority | OK2000207 | CWS | Carmen | 355 | Alfalfa County |
| Carnegie | OK2000805 | CWS | Carnegie | 1,637 | Caddo County |
| Carney | OK2004104 | CWS | Carney | 649 | Lincoln County |
| Carriage Hills | OK5002135 | CWS | Afton | 160 | Delaware County |
| Carriage Village | OK3007251 | CWS | Tulsa | 500 | Tulsa County |
| Carter | OK3000501 | CWS | Carter | 330 | Beckham County |
| Cashion | OK3003703 | CWS | Cashion | 900 | Kingfisher County, Logan County |
| Catoosa | OK3006629 | CWS | Catoosa | 2,668 | Rogers County |
| Cedar Crest Country Club | OK3004636 | CWS | Locust Grove | 315 | Mayes County |
| Cement | OK3000806 | CWS | Cement | 530 | Caddo County |
| Chandler | OK1020702 | CWS | Chandler | 3,142 | Lincoln County |
| Charlie Brown'S Learning Center | OK6005515 | NTNCWS | Harrah | 65 | Oklahoma County |
| Chattanooga Pws | OK2001608 | CWS | Chattanooga | 627 | Comanche County |
| Chelsea Economic Dev. Auth. | OK1021504 | CWS | Chelsea | 1,964 | Rogers County |
| Cherokee | OK2000208 | CWS | Cherokee | 1,630 | Alfalfa County |
| Cherokee Co. Rwd # 16 (Chicken Creek) | OK1021707 | CWS | Cookson | 272 | Cherokee County |
| Cherokee Co. Rwd # 16 (Lakewood) | OK1021731 | CWS | Cookson | 200 | Cherokee County |
| Cherokee Co. Rwd # 16 (Wildcat) | OK1021703 | CWS | Cookson | 200 | Cherokee County |
| Cherokee Co. Rwd # 16 (Woodhaven) | OK1021727 | CWS | Cookson | 200 | Cherokee County |
| Cherokee Co. Rwd #1 (Ft Gibson) | OK1021621 | CWS | Fort Gibson | 710 | Cherokee County |
| Cherokee Co. Rwd #12 | OK2001189 | CWS | Hulbert | 95 | Cherokee County |
| Cherokee Co. Rwd #13 | OK1021721 | CWS | Cookson | 1,640 | Cherokee County |
| Cherokee Co. Rwd #2 (Keys) | OK1021711 | CWS | Park Hill | 1,493 | Cherokee County |
| Cherokee Co. Rwd #3 (Grandview) | OK4001117 | CWS | Tahlequah | 2,300 | Cherokee County |
| Cherokee Co. Rwd #7 (Welling) | OK3001126 | CWS | Welling | 418 | Cherokee County |
| Cherokee Co. Rwd #8 (Briggs) | OK3001118 | CWS | Tahlequah | 413 | Cherokee County |
| Cherokee Co. Rwd #9 | OK1021733 | CWS | Hulbert | 200 | Cherokee County, Wagoner County |
| Cherokee Kenwood Water District | 062002156 | CWS | Tahlequah | 487 | Delaware County |
| Cheyenne | OK1010803 | CWS | Cheyenne | 778 | Roger Mills County |
| Cheyenne Arapaho Concho | 062000905 | NTNCWS | Concho | 2,862 | |
| Chickasha Lake Park | OK2002613 | CWS | Chickasha | 50 | Caddo County |
| Chisholm Creek Housing Addition | OK3002416 | CWS | North Enid | 75 | Garfield County |
| Choctaw Agriculture Education Facility | OK8005561 | NTNCWS | Choctaw | 26 | Oklahoma County |
| Choctaw Co. Rwd #1 | OK2001204 | CWS | Grant | 2,300 | Choctaw County |
| Choctaw Co. Rwd #2 | OK3001203 | CWS | Swink | 373 | Choctaw County, McCurtain County |
| Choctaw Co. Rwsg & Swmd #3 | OK3001209 | CWS | Sawyer | 235 | Choctaw County |
| Choctaw Co. Rwsg & Swmd #6 | OK3001214 | CWS | Boswell | 850 | Choctaw County |
| Choctaw Estates, Llc | OK2005539 | CWS | Knoxville | 105 | Oklahoma County |
| Chouteau | OK3004615 | CWS | Chouteau | 2,100 | Mayes County |
| Cimarron Feeders | OK2001305 | NTNCWS | Texhoma | 49 | Cimarron County |
| Clarita-Olney Rwd | OK3001501 | CWS | Clarita | 360 | Coal County |
| Clayton Pwa | OK3006408 | CWS | Clayton | 719 | Pushmataha County |
| Clemmer Water Association | OK3001659 | CWS | Lawton | 47 | Comanche County |
| Cleo Springs | OK2004402 | CWS | Cleo Springs | 326 | Major County |
| Cleveland Co Rw,S,G&Swmd #1 | OK4001499 | CWS | Lexington | 80 | Cleveland County |
| Cleveland Municipal Authority | OK1021210 | CWS | Cleveland | 3,262 | Pawnee County |
| Clinton-Sherman Industrial Airpark | OK2007506 | NTNCWS | Burns Flat | 358 | Washita County |
| Coal Co Rw&Swmg #6 | OK3001502 | CWS | Tupelo | 150 | Coal County |
| Coal Co Rwd #5 | OK3001505 | CWS | Coalgate | 366 | Atoka County, Coal County |
| Coalgate Pwa | OK1010402 | CWS | Coalgate | 2,005 | Coal County |
| Coffee Creek Mhp, Llc | OK5005547 | CWS | Edmond | 120 | Oklahoma County |
| Colbert Boat Club | OK2000725 | CWS | Cartwright | 54 | Bryan County |
| Colbert Pua | OK2000716 | CWS | Colbert | 2,312 | Bryan County |
| Colcord Pwa | OK2002157 | CWS | Colcord | 819 | Delaware County |
| Cole | OK3004708 | CWS | Blanchard | 473 | McClain County |
| Comanche Co Rwd #1 | OK3001602 | CWS | Lawton | 2,800 | Comanche County |
| Comanche Co Rwd #2 | OK2001604 | CWS | Elgin | 1,840 | Comanche County |
| Comanche Co Rwd #3 | OK2001602 | CWS | Lawton | 2,325 | Comanche County, Cotton County |
| Comanche Co Rwd #4 | OK3001654 | CWS | Cache | 3,000 | Comanche County, Kiowa County, Tillman County |
| Comanche Public Works Authority | OK1011101 | CWS | Comanche | 1,649 | Stephens County |
| Commerce | OK2005810 | CWS | Commerce | 2,645 | Ottawa County |
| Consolidated Rwd #1 Nowata And Rogers Co | OK3005301 | CWS | Nowata | 1,580 | Nowata County |
| Copan Pwa | OK1021417 | CWS | Copan | 733 | Washington County |
| Corn Pwa | OK2007501 | CWS | Corn | 500 | Washita County |
| Cornish | OK3003404 | CWS | Ringling | 41 | Jefferson County |
| Corral Kreek Subdiv | OK3001119 | CWS | Tahlequah | 273 | Cherokee County |
| Cotton Co Rwd #2 | OK2001702 | CWS | Walters | 3,000 | Comanche County, Cotton County |
| Country East Mhp | OK2002015 | CWS | Weatherford | 97 | Custer County |
| Country Haven Mhp | OK5005553 | CWS | Tulsa | 30 | Oklahoma County |
| Country Mhp | OK4002610 | CWS | Oklahoma City | 50 | Grady County |
| Coves At Bird Island | OK3002135 | CWS | Bird Island | 100 | Delaware County |
| Covington | OK3002419 | CWS | Covington | 553 | Garfield County |
| Coyle | OK2004203 | CWS | Coyle | 289 | Logan County |
| Craig Co Rwd #1 | OK3001801 | CWS | Vinita | 315 | Craig County |
| Craig Co Rws & Swmd #3 | OK2001807 | CWS | Welch | 1,100 | Craig County |
| Creek Co Rwd # 4 | OK3001920 | CWS | Oakhurst | 575 | Creek County |
| Creek Co Rwd # 5 | OK2001994 | CWS | Mannford | 2,500 | Creek County |
| Creek Co Rwd # 7 | OK1020405 | CWS | Mounds | 2,100 | Creek County |
| Crescent | OK2004204 | CWS | Crescent | 1,411 | Logan County |
| Creta Water Corporation | OK3003310 | CWS | Altus | 230 | Jackson County |
| Custer City Pws | OK2002009 | CWS | Custer City | 393 | Custer County |
| Custer County Rwd #3 | OK2002040 | CWS | Custer City | 960 | Custer County, Dewey County, Washita County |
| Cyril | OK3000805 | CWS | Cyril | 1,168 | Caddo County |
| Dacoma Pwa | OK3007607 | CWS | Dacoma | 148 | Woods County |
| Davenport Utility Auth | OK3004104 | CWS | Davenport | 881 | Lincoln County |
| Davidson | OK2007104 | CWS | Davidson | 375 | Tillman County |
| Davis | OK1010822 | CWS | Davis | 2,610 | Carter County, Garvin County, Murray County |
| Deer Creek | OK2002711 | CWS | Deer Creek | 147 | Grant County |
| Deerfield Springs | OK3006631 | CWS | Claremore | 445 | Rogers County |
| Delaware | OK1021502 | CWS | Delaware | 456 | Nowata County |
| Delaware Co Rwd # 1 | OK3002134 | CWS | Eucha | 465 | Delaware County |
| Delaware Co Rwd # 12 | OK2002170 | CWS | Jay | 785 | Delaware County |
| Delaware Co Rwd # 3 | OK1221615 | CWS | Jay | 653 | Delaware County |
| Delaware Co Rwd #10 | OK6002158 | CWS | Afton | 1,295 | Delaware County |
| Delaware Co Rwsg&Swm District 11 | OK3002157 | CWS | Twin Oaks | 750 | Delaware County |
| Delling #2 Llc | OK2005593 | NTNCWS | Harrah | 100 | Oklahoma County |
| Depew | OK2001903 | CWS | Depew | 555 | Creek County |
| Devol | OK3001701 | CWS | Devol | 150 | Cotton County |
| Dewar | OK3005613 | CWS | Dewar | 917 | Okmulgee County |
| Dewey Co Rwd #1 | OK2002201 | CWS | Oakwood | 129 | Dewey County |
| Dewey Co Rwd #3 | OK2007707 | CWS | Mutual | 755 | Dewey County, Woodward County |
| Diamondhead Homeowners Assoc | OK3005745 | CWS | Sand Springs | 50 | Osage County, Tulsa County |
| Dibble | OK3004709 | CWS | Dibble | 550 | McClain County |
| Dill City | OK2007507 | CWS | Dill City | 526 | Washita County |
| Dougherty | OK1010824 | CWS | Dougherty | 224 | Murray County |
| Douglas | OK3002414 | CWS | Douglas | 32 | Garfield County |
| Dover Public Works Trust Auth | OK2003705 | CWS | Dover | 400 | Kingfisher County |
| Drummond | OK3002401 | CWS | Drummond | 405 | Garfield County |
| Drumright | OK2001902 | CWS | Drumright | 2,876 | Creek County |
| Duit Construction | OK9005501 | NTNCWS | Edmond | 100 | Oklahoma County |
| Duke Central Vue Water | OK2003301 | CWS | Duke | 318 | Greer County, Jackson County |
| Duke Public Water Authority | OK3003311 | CWS | Duke | 425 | Jackson County |
| Dustin Pwa | OK1020511 | CWS | Dustin | 496 | Hughes County |
| Eakly Development Corp | OK2000808 | CWS | Eakly | 277 | Caddo County |
| East Central Oklahoma Water Authority | OK1021713 | CWS | Webbers Falls | 1,200 | Muskogee County, Sequoyah County |
| Eastern Shawnee Indigo Sky Casino | 061000102 | NTNCWS | Wyandotte | 1,400 | |
| Eastside Mhp | OK4002654 | CWS | Tuttle | 32 | Grady County |
| Edgewater Rv Park | OK3005923 | CWS | Cleveland | 93 | Pawnee County |
| Eldorado | OK3003301 | CWS | Eldorado | 446 | Jackson County |
| Elgin Pwa | OK2001610 | CWS | Elgin | 3,300 | Comanche County |
| Ellis Co Rwd#1 | OK2002318 | CWS | Ft. Supply | 43 | Ellis County |
| Elm Bend Rwd Inc | OK3005309 | CWS | Nowata | 600 | Nowata County, Washington County |
| Elmore City | OK2002521 | CWS | Elmore City | 756 | Garvin County |
| Elmore City Rw Corp | OK3002505 | CWS | Elmore City | 1,107 | Garvin County |
| England Shores Mhp | OK6002168 | CWS | Wyandotte | 55 | Delaware County |
| Erick | OK2000502 | CWS | Erick | 1,023 | Beckham County |
| Fairfax | OK1021204 | CWS | Fairfax | 1,555 | Osage County |
| Fairland Public Works Authority | OK2005809 | CWS | Fairland | 1,025 | Ottawa County |
| Fairmont | OK2002413 | CWS | Fairmont | 147 | Garfield County |
| Fairview | OK2004404 | CWS | Fairview | 2,690 | Major County |
| Falconhead Prop Owners Assoc | OK2004305 | CWS | Burneyville | 350 | Love County |
| Family Of Faith | OK4006322 | NTNCWS | Shawnee | 250 | Pottawatomie County |
| Fargo | OK2002303 | CWS | Fargo | 326 | Ellis County |
| Faxon | OK3001675 | CWS | Faxon | 134 | Comanche County |
| Felt School | OK2001309 | NTNCWS | Felt | 100 | Cimarron County |
| Fletcher | OK2001612 | CWS | Fletcher | 1,022 | Comanche County |
| Forgan | OK2000406 | CWS | Forgan | 532 | Beaver County |
| Fort Cobb | OK2000810 | CWS | Fort Cobb | 667 | Caddo County |
| Fort Sill Apache Tribal Complex | 064000881 | NTNCWS | Apache | 48 | |
| Fort Supply Pwa | OK3007701 | CWS | Fort Supply | 328 | Woodward County |
| Fort Towson | OK2001207 | CWS | Fort Towson | 611 | Choctaw County |
| Foss | OK2007508 | CWS | Foss | 127 | Washita County |
| Foss Reservoir Mcd | OK1010829 | CWS | Foss | 12 | Custer County |
| Francis | OK2006205 | CWS | Francis | 390 | Pontotoc County |
| Freedom | OK3007601 | CWS | Freedom | 275 | Woods County |
| Freedom Farms | OK5001437 | NTNCWS | Norman | 85 | Cleveland County |
| Freedom From Addiction Through Christ | OK2005888 | NTNCWS | Quapaw | 60 | Ottawa County |
| Frontier City | OK5005588 | NTNCWS | Oklahoma City | 1,040 | Oklahoma County |
| Frontier Development Auth | OK3002011 | CWS | Butler | 437 | Custer County |
| Frontier Shores Poa Water Dept | OK2005741 | CWS | Osage | 200 | Osage County |
| Gage | OK2002301 | CWS | Gage | 429 | Ellis County |
| Gans Utility Authority | OK3006802 | CWS | Gans | 600 | Sequoyah County |
| Garber Municipal Authority | OK2002416 | CWS | Garber | 725 | Garfield County |
| Garfield Co Rwd # 4 | OK3002406 | CWS | Enid | 334 | Garfield County |
| Garfield Co Rwd #5 | OK2002444 | CWS | Bison | 1,980 | Garfield County, Kingfisher County |
| Garfield Co Rwd #6 | OK2002415 | CWS | Garber | 1,225 | Garfield County, Grant County, Kay County, Noble County |
| Garfield Co Rwd #7 | OK3002408 | CWS | Enid | 288 | Garfield County |
| Garvin | OK3004809 | CWS | Garvin | 150 | McCurtain County |
| Garvin Co Rwd # 6 (Wells) | OK2002511 | CWS | Wynnewood | 1,680 | Garvin County, Murray County |
| Garvin Co Rwd #1 | OK2002516 | CWS | Pauls Valley | 1,445 | Garvin County |
| Garvin Co Rwd #2 | OK2002514 | CWS | Lindsay | 1,570 | Garvin County, McClain County |
| Garvin Co Rwd #6 (Sw Purchase) | OK3002515 | CWS | Wynnewood | 862 | Garvin County |
| Geary | OK2000608 | CWS | Geary | 1,258 | Blaine County, Canadian County |
| Geronimo | OK3001680 | CWS | Geronimo | 1,200 | Comanche County |
| Glencoe | OK3006040 | CWS | Glencoe | 478 | Payne County |
| Golden Oaks Home Owners Assn | OK2001032 | CWS | Ardmore | 135 | Carter County |
| Goldsby Water Auth Trust | OK2004707 | CWS | Goldsby | 2,000 | McClain County |
| Goltry | OK2000203 | CWS | Goltry | 268 | Alfalfa County |
| Goodwell | OK2007005 | CWS | Goodwell | 1,198 | Texas County |
| Gordon'S Hollow Hoa | OK3000911 | CWS | Blanchard | 25 | Canadian County |
| Gore Pwa | OK1021773 | CWS | Gore | 1,688 | Sequoyah County |
| Gospel Tabernacle | OK5005582 | NTNCWS | Spencer | 42 | Oklahoma County |
| Gotebo | OK3003801 | CWS | Gotebo | 272 | Kiowa County |
| Gould Pwa | OK3002901 | CWS | Gould | 206 | Harmon County |
| Gracemont Pwa | OK2000811 | CWS | Gracemont | 336 | Caddo County |
| Grady Co Rwd #1 | OK2002604 | CWS | Pocasset | 300 | Grady County |
| Grady Co Rwd #2 | OK2002605 | CWS | Amber | 455 | Grady County |
| Grady Co Rwd #3 | OK2002607 | CWS | Bradley | 80 | Grady County |
| Grady Co Rwd #7 (Ninnekah) | OK2002633 | CWS | Ninnekah | 2,425 | Grady County |
| Grand Lake Pwa | OK1021691 | CWS | Ochelata | 2,800 | Delaware County |
| Grand Meadows | OK2004677 | NTNCWS | Spavinaw | 94 | Delaware County, Mayes County |
| Grandfield | OK2007103 | CWS | Grandfield | 1,110 | Cotton County, Tillman County |
| Granite Pws | OK2002804 | CWS | Granite | 1,425 | Greer County |
| Grant County Rwd #1 | OK3002707 | CWS | Wakita | 100 | Grant County |
| Grayhorse Rwd | OK3005717 | CWS | Fairfax | 100 | Osage County |
| Greenfield Pwa | OK3000606 | CWS | Greenfield | 123 | Blaine County |
| Gypsy School | OK2001939 | NTNCWS | Depew | 132 | Creek County |
| Haileyville | OK3006111 | CWS | Haileyville | 889 | Pittsburg County |
| Hammon | OK3006503 | CWS | Hammon | 568 | Custer County, Roger Mills County |
| Hanna Pwa | OK2004902 | CWS | Hanna | 133 | McIntosh County |
| Hardesty Utilities | OK2007004 | CWS | Hardesty | 277 | Texas County |
| Harmon Electric | OK3002801 | CWS | Hollis | 188 | Greer County, Jackson County |
| Harmon Water Corp | OK2002902 | CWS | Gould | 1,132 | Greer County, Harmon County, Jackson County |
| Harper Co Rwd #1 | OK2003001 | CWS | Buffalo | 198 | Harper County, Woods County, Woodward County |
| Harrahs Of Oklahoma Casino | 064020004 | NTNCWS | 600 | ||
| Hartshorne | OK3006101 | CWS | Hartshorne | 2,300 | Pittsburg County |
| Haskell Co. Water Company | OK1020301 | CWS | Stigler | 3,000 | Haskell County, Muskogee County, Pittsburg County |
| Haskell Pwa-Swp | OK3005122 | CWS | Haskell | 250 | Muskogee County |
| Haskell Pwa-Wells | OK2005111 | CWS | Haskell | 1,765 | Muskogee County |
| Haworth Pwa | OK3004810 | CWS | Haworth | 354 | McCurtain County |
| Headrick | OK3003302 | CWS | Headrick | 84 | Jackson County |
| Healdton | OK1011102 | CWS | Healdton | 2,785 | Carter County |
| Helena | OK2000210 | CWS | Helena | 443 | Alfalfa County |
| Hennessey | OK2003704 | CWS | Hennessey | 2,058 | Kingfisher County |
| Hickory Meadows | OK2002146 | CWS | Grove | 157 | Delaware County |
| High Chaparral Estates Mhp | OK5005543 | CWS | Englewood | 225 | Oklahoma County |
| Highpoint Mhp | OK2002401 | CWS | Enid | 600 | Garfield County |
| Highway 69 Water Dist. (Greer'S Sausage) | OK3004610 | CWS | Pryor | 43 | Mayes County |
| Hillcrest Mhp | OK2005513 | CWS | Oklahoma City | 400 | Oklahoma County |
| Hillsdale Pwa | OK3002404 | CWS | Hillsdale | 110 | Garfield County |
| Hilltop Mhp | OK4005577 | CWS | Oklahoma City | 125 | Oklahoma County |
| Hinton | OK2000809 | CWS | Hinton | 2,600 | Caddo County |
| Hitchcock Public Works Auth. | OK2000610 | CWS | Hitchcock | 141 | Blaine County |
| Holiday Shores Prop Assn | OK2002121 | CWS | Grove | 136 | Delaware County |
| Holliday Outt Mhp | OK2005534 | CWS | Oklahoma City | 100 | Oklahoma County |
| Hollis | OK2002901 | CWS | Hollis | 2,264 | Harmon County |
| Hollister | OK2007102 | CWS | Hollister | 60 | Tillman County |
| Hominy | OK1021306 | CWS | Hominy | 2,584 | Osage County |
| Hooker | OK2007006 | CWS | Hooker | 1,788 | Texas County |
| Howard Mcleod Correctional Center | OK2000304 | CWS | Atoka | 825 | Atoka County, Pushmataha County |
| Hughes Co. Rwd #1 | OK3003201 | CWS | Wetumka | 1,225 | Hughes County |
| Hughes Co. Rwd #2 | OK1010414 | CWS | Stuart | 1,145 | Hughes County, Pittsburg County |
| Hughes Co. Rwd #3 | OK3003202 | CWS | Wewoka | 200 | Hughes County |
| Hughes Co. Rwd #5 | OK3003204 | CWS | Holdenville | 800 | Hughes County |
| Hughes Co. Rwd #6 (Gerty) | OK2003224 | CWS | Allen | 2,180 | Hughes County |
| Hulbert Pwa | OK1021620 | CWS | Hulbert | 1,007 | Cherokee County |
| Hunter | OK3002415 | CWS | Kremlin | 300 | Garfield County |
| Hwy 7 East Water Assn | OK3001669 | CWS | Lawton | 50 | Comanche County |
| Indiahoma Public Works Authority | OK2001609 | CWS | Indiahoma | 350 | Comanche County |
| Indianola Rwd #18 | OK3006110 | CWS | Indianola | 2,000 | McIntosh County, Pittsburg County |
| Inola Water Works Inc | OK3006612 | CWS | Inola | 1,589 | Rogers County |
| International Paper | OK1010101 | NTNCWS | Valliant | 848 | McCurtain County |
| Iowa Tribal Complex | 064020001 | NTNCWS | Perkins | 263 | |
| Ironside Water District Inc | OK3001804 | CWS | Vinita | 392 | Craig County |
| Jackson Co Water Corp | OK2003306 | CWS | Blair | 2,662 | Jackson County, Kiowa County, Tillman County |
| Jay | OK1021674 | CWS | Jay | 2,482 | Delaware County, Mayes County |
| Jennings | OK2005904 | CWS | Jennings | 400 | Pawnee County |
| Jet | OK2000211 | CWS | Jet | 230 | Alfalfa County |
| Johnston Co Rwd #3 | OK2003511 | CWS | Tishomingo | 2,783 | Johnston County |
| Johnston Co Rws& Swmd #4 | OK2003503 | CWS | Coleman | 600 | Johnston County |
| Jones | OK2005507 | CWS | Jones | 1,727 | Oklahoma County |
| Jones Academy | 063006122 | CWS | Durant | 290 | |
| Jones State Central Middle School | OK4005584 | NTNCWS | Jones | 280 | Oklahoma County |
| Joseph Harp Corr Inst | OK2001408 | CWS | Lexington | 3,000 | Cleveland County |
| Kansas Public Works Authority | OK2002135 | CWS | Kansas | 802 | Delaware County |
| Kaw City Water Authority | OK2003605 | CWS | Kaw City | 372 | Kay County |
| Kay Co Rwd #1 | OK3003605 | CWS | Ponca City | 1,765 | Kay County |
| Kay Co Rwd #3 | OK3003602 | CWS | Ponca City | 1,000 | Kay County |
| Kay County Rural Water District 7 | OK3003601 | CWS | Blackwell | 920 | Grant County, Kay County |
| Kay County Rwd #2 | OK3003604 | CWS | Marland | 50 | Kay County |
| Kay Electric Cooperative | OK2003632 | CWS | Blackwell | 2 | Kay County |
| Kendrick Municipal Authority | OK3004109 | CWS | Kendrick | 266 | Lincoln County |
| Kenefic | OK2000701 | CWS | Kenefic | 165 | Bryan County |
| Keota Pwa | OK3003112 | CWS | Keota | 564 | Haskell County |
| Ketchum Pwa Delaware Co System | OK1221638 | CWS | Ketchum | 1,805 | Delaware County, Mayes County |
| Keyes Utility Auth. | OK2001302 | CWS | Keyes | 315 | Cimarron County |
| Kickapoo Housing Complex | 062004183 | CWS | Mcloud | 499 | Lincoln County |
| Kickapoo Multipurpose | 062004173 | NTNCWS | Mcloud | 33 | |
| Kickapoo New Gaming Enterprise | 062004193 | NTNCWS | Mcloud | 2,097 | |
| Kids Usa Of Newalla | OK8005539 | NTNCWS | Nicoma Park | 52 | Cleveland County, Oklahoma County |
| Kidz Club Child Care Center | OK4002699 | NTNCWS | Tuttle | 32 | Grady County |
| Kingfisher Co Rwd #3 | OK2003722 | CWS | Kingfisher | 237 | Kingfisher County |
| Kingston Pwa | OK2004501 | CWS | Kingston | 1,600 | Marshall County |
| Kiowa | OK1020611 | CWS | Kiowa | 731 | Atoka County, Pittsburg County |
| Kiowa Rural Water District #1 | OK3003804 | CWS | Altus | 135 | Kiowa County |
| Konawa Pwa | OK2006704 | CWS | Konawa | 1,479 | Seminole County |
| Krebs Utility Authority | OK1020606 | CWS | Krebs | 2,051 | Pittsburg County |
| Kremlin | OK3002403 | CWS | Kremlin | 300 | Garfield County |
| Kremlin-Hillsdale Rural Water District 1 | OK2002402 | CWS | Kremlin | 320 | Garfield County |
| Kusa Rwd #3 | OK3005603 | CWS | Henryetta | 240 | Okmulgee County |
| Lahoma Pwa | OK2002417 | CWS | Lahoma | 577 | Garfield County |
| Lake Forest Mhp | OK3005557 | CWS | Oklahoma City | 500 | Canadian County |
| Lakeview Elementary School | OK2001426 | NTNCWS | Norman | 250 | Cleveland County |
| Lakewood Village | OK3002142 | CWS | Grove | 293 | Delaware County |
| Lamont | OK2002705 | CWS | Lamont | 417 | Grant County |
| Langley | OK1021604 | CWS | Langley | 950 | Mayes County |
| Langston Pwa | OK1020911 | CWS | Langston | 1,670 | Logan County |
| Latimer Co. Rwd #1 | OK3003904 | CWS | Wilburton | 2,750 | Latimer County |
| Latimer Co. Rwd #2 | OK3003903 | CWS | Talihina | 1,500 | Latimer County |
| Latimer Co. Rwd #3 | OK3003908 | CWS | Wister | 175 | Latimer County, Le Flore County |
| Latimer Co. Rwd #4 | OK1020110 | CWS | Red Oak | 412 | Latimer County |
| Laverne | OK2003002 | CWS | Laverne | 1,097 | Harper County |
| Lazy E Training Center | OK2004255 | NTNCWS | Guthrie | 30 | Logan County |
| Le Ann Water | OK3007407 | CWS | Ramona | 750 | Washington County |
| Lee Creek Rwd | OK3006820 | CWS | Muldrow | 250 | Sequoyah County |
| Leedey | OK3002201 | CWS | Leedey | 436 | Dewey County |
| Leflore Co. Consolidated Rwd #12 | OK3004040 | CWS | Monroe | 1,800 | Le Flore County |
| Leflore Co. Rwd #1 | OK3004003 | CWS | Poteau | 1,758 | Le Flore County |
| Leflore Co. Rwd #15 | OK3004046 | CWS | Hodgen | 425 | Le Flore County |
| Leflore Co. Rwd #17 | OK3004048 | CWS | Hodgen | 498 | Le Flore County |
| Leflore Co. Rwd #3 | OK3004006 | CWS | Whitesboro | 1,643 | Le Flore County |
| Leflore Co. Rwd #5 | OK3004010 | CWS | Howe | 1,593 | Le Flore County |
| Lehigh | OK2001501 | CWS | Lehigh | 396 | Coal County |
| Leisure Shores Water System Assn, Inc | OK2002145 | CWS | Afton | 150 | Delaware County |
| Lenapah Public Works Authority | OK1021501 | CWS | Lenapah | 298 | Nowata County |
| Leon Rwd #1 (Love County) | OK2004302 | CWS | Leon | 300 | Love County |
| Lexington | OK2001409 | CWS | Lexington | 2,086 | Cleveland County |
| Lincoln Co Rw & Sewer Dist 4 | OK2004105 | CWS | Agra | 2,525 | Lincoln County, Payne County |
| Lincoln Co Rwd #1 | OK1020703 | CWS | Sparks | 404 | Lincoln County |
| Lincoln Co Rwd #2 | OK3004102 | CWS | Chandler | 400 | Lincoln County |
| Lincoln Co Rwd #3 | OK3004107 | CWS | Wellston | 575 | Lincoln County |
| Lindsay Pwa | OK2002501 | CWS | Lindsay | 2,850 | Garvin County |
| Little Axe School | OK2001424 | NTNCWS | Norman | 1,400 | Cleveland County |
| Locust Grove Pwa | OK1021668 | CWS | Locust Grove | 1,600 | Mayes County |
| Logan Co Rwd #2 | OK2004206 | CWS | Crescent | 1,146 | Kingfisher County, Logan County |
| Logan Co Rws & Swmd #3 | OK2004230 | CWS | Marshall | 1,618 | Garfield County, Kingfisher County, Logan County, Noble County, Payne County |
| Lone Chimney Water Association | OK1021221 | CWS | Glencoe | 150 | Noble County, Pawnee County, Payne County |
| Lone Wolf | OK2003806 | CWS | Lone Wolf | 440 | Kiowa County |
| Longdale | OK2000611 | CWS | Longdale | 363 | Blaine County |
| Lookeba Sickles School | OK2000853 | NTNCWS | Lookeba | 250 | Caddo County |
| Loyal | OK2003701 | CWS | Loyal | 81 | Kingfisher County |
| Luther | OK2005503 | CWS | Luther | 650 | Oklahoma County |
| Mack Alford Correctional Center | OK1010408 | CWS | Stringtown | 952 | Atoka County |
| Major County Rwd #1 | OK2004407 | CWS | Fairview | 1,000 | Blaine County, Major County, Woods County |
| Manchester | OK2002703 | CWS | Manchester | 104 | Alfalfa County, Grant County |
| Mangum Pws | OK2002802 | CWS | Mangum | 2,924 | Greer County |
| Manitou | OK3007101 | CWS | Tipton | 278 | Tillman County |
| Mannsville Public Works Authority | OK2003505 | CWS | Mannsville | 587 | Johnston County |
| Marietta Pwa | OK2004301 | CWS | Marietta | 2,626 | Love County |
| Marland | OK2005204 | CWS | Marland | 325 | Noble County |
| Marshall | OK3004201 | CWS | Marshall | 258 | Logan County |
| Marshall County Rwd #1 | OK3004521 | CWS | Oklahoma City | 468 | Marshall County |
| Martha | OK3003304 | CWS | Martha | 205 | Jackson County |
| Mason Trailer Park | OK2007062 | CWS | Ponca City | 50 | Texas County |
| Maud | OK2006302 | CWS | Maud | 1,136 | Pottawatomie County, Seminole County |
| Mayes Co Rwd # 3 | OK1021640 | CWS | Disney | 2,400 | Delaware County, Mayes County |
| Mayes Co Rwd # 7 | OK3004627 | CWS | Locust Grove | 538 | Mayes County |
| Mayes Co Rwd # 8 | OK3004637 | CWS | Vinita | 450 | Mayes County |
| Mayes Co Rwd # 9 | OK1021678 | CWS | Locust Grove | 2,578 | Delaware County, Mayes County |
| Maysville | OK1010807 | CWS | Maysville | 1,212 | Garvin County, McClain County |
| Mcclain Co Rwd # 8 | OK2004711 | CWS | Wayne | 1,897 | Cleveland County, Garvin County, McClain County |
| Mcclain County Rw & Sd #9 | OK3004713 | CWS | Norman | 250 | McClain County |
| Mccord Rwd #3 | OK3005747 | CWS | Ponca City | 1,800 | Osage County |
| Mccurtain Co. Rwd #2 | OK3004814 | CWS | Millerton | 755 | McCurtain County |
| Mccurtain Co. Rwd #5 (Hochatown) | OK3004804 | CWS | Broken Bow | 1,614 | McCurtain County |
| Mccurtain Co. Rwd #6 (Kiamichi) | OK3004817 | CWS | Smithville | 600 | McCurtain County |
| Mccurtain Municipal Authority | OK3003101 | CWS | Mccurtain | 560 | Haskell County, Le Flore County |
| Mcintosh Co. Rwd #13 (Wells) | OK2005603 | CWS | Henryetta | 1,465 | Hughes County, McIntosh County, Okfuskee County, Okmulgee County |
| Mcintosh Co. Rwd #3 (Victor) | OK3004903 | CWS | Checotah | 920 | McIntosh County, Muskogee County |
| Mcintosh Co. Rwd #5 | OK3004939 | CWS | Checotah | 1,900 | McIntosh County |
| Mcintosh Co. Rwd #6 (Vivian) | OK2004913 | CWS | Eufaula | 1,500 | McIntosh County |
| Mcintosh Co. Rwd #7 | OK3004920 | CWS | Checotah | 200 | McIntosh County |
| Mcintosh Co. Rws & Swmd #2 (Onapa) | OK1020535 | CWS | Checotah | 2,774 | McIntosh County |
| Mcintosh Co. Rws & Swmd #9 | OK3004907 | CWS | Checotah | 1,761 | McIntosh County |
| Mcloud | OK2006301 | CWS | Mcloud | 2,939 | Pottawatomie County |
| Medford | OK2002704 | CWS | Medford | 1,172 | Grant County |
| Medicine Park | OK3001603 | CWS | Medicine Park | 382 | Comanche County |
| Meeker Public Works Authority | OK3004108 | CWS | Meeker | 1,044 | Lincoln County |
| Meno | OK2004401 | CWS | Meno | 195 | Major County |
| Merritt Mobile Home & Rv Park | OK2000533 | CWS | Las Vegas | 70 | Beckham County |
| Middleberg School | OK2002627 | NTNCWS | Blanchard | 135 | Grady County |
| Milburn Public Works Authority | OK2003520 | CWS | Milburn | 317 | Johnston County |
| Mill Creek | OK2003501 | CWS | Mill Creek | 310 | Johnston County |
| Minco | OK2002610 | CWS | Minco | 1,632 | Grady County |
| Mooreland | OK2007709 | CWS | Mooreland | 1,226 | Woodward County |
| Morris | OK3005610 | CWS | Morris | 1,460 | Okmulgee County |
| Morrison Public Works Auth. | OK3005205 | CWS | Morrison | 950 | Noble County |
| Moss School | OK2003222 | NTNCWS | Holdenville | 297 | Hughes County |
| Mountain Park Public Works Auth | OK3003807 | CWS | Mountain Park | 473 | Kiowa County |
| Mountain View Pwa | OK2003805 | CWS | Mountain View | 880 | Kiowa County |
| Mountain Village Development | OK2001643 | CWS | Lawton | 77 | Comanche County |
| Muldrow Pwa | OK1020208 | CWS | Muldrow | 3,104 | Sequoyah County |
| Mulhall | OK3004203 | CWS | Mulhall | 225 | Logan County |
| Murray State College | OK1010816 | CWS | Tishomingo | 1,150 | Johnston County |
| Muskogee Co. Rwd #14 | OK3005134 | CWS | Boynton | 60 | Muskogee County |
| Muskogee Co. Rwd #2 (Gooseneck) | OK3005102 | CWS | Muskogee | 1,000 | Muskogee County |
| Muskogee Co. Rwd #3 | OK1020710 | CWS | Council Hill | 1,300 | McIntosh County, Muskogee County |
| Muskogee Co. Rwd #4 | OK3005104 | CWS | Fort Gibson | 783 | Muskogee County |
| Muskogee Co. Rwd #6 | OK3005105 | CWS | Wainwright | 2,550 | Muskogee County |
| Muskogee Co. Rwd #7 | OK3005103 | CWS | Fort Gibson | 1,710 | Cherokee County, Muskogee County |
| Muskogee Co. Rwd #9 | OK3005119 | CWS | Muskogee | 300 | Muskogee County |
| Nash | OK2002701 | CWS | Nash | 224 | Grant County |
| New Cordell Utility Authority | OK2007502 | CWS | Cordell | 2,903 | Washita County |
| New Life Ranch, Flint Valley | OK2002151 | CWS | Colcord | 35 | Delaware County |
| Newkirk | OK2003604 | CWS | Newkirk | 2,243 | Kay County |
| Nicoma Park | OK8005579 | CWS | Nicoma Park | 318 | Oklahoma County |
| Noble Co Rwd # 4 | OK3005201 | CWS | Marland | 142 | Noble County |
| Noble Co Rwd #1 (Lucien) | OK1021205 | CWS | Perry | 335 | Garfield County, Noble County |
| Noble Co Rwd #3 | OK2005207 | CWS | Ponca City | 250 | Noble County |
| Noble County Rwd #2 | OK3005203 | CWS | Perry | 2,100 | Noble County, Payne County |
| Noble Estates Mhp | OK2001431 | CWS | Houston | 75 | Cleveland County |
| Norge Water And Sewer Co., Inc | OK3002601 | CWS | Chickasha | 890 | Grady County |
| North Blaine Water Corp | OK2000606 | CWS | Okeene | 960 | Blaine County, Kingfisher County, Major County |
| North Latta Park, Llc | OK5005539 | CWS | Norman | 39 | Oklahoma County |
| North Miami | OK3005801 | CWS | North Miami | 433 | Ottawa County |
| North Vinita Water Coop Inc | OK3001806 | CWS | Vinita | 162 | Craig County |
| Nowata Co Rw & S Dist #1 | OK3005304 | CWS | Ochelata | 500 | Nowata County, Washington County |
| Nowata Co Rwd #2 | OK3005303 | CWS | Nowata | 205 | Nowata County |
| Nowata Co Rwd #5 | OK3005307 | CWS | Nowata | 70 | Nowata County |
| Nowata Co Rwd #6 | OK3005308 | CWS | Nowata | 450 | Nowata County, Rogers County |
| Nowata Co Rwd #7 | OK3005321 | CWS | Coffeyville | 1,050 | Craig County, Nowata County |
| Nowata County Rwd # 3 | OK3005302 | CWS | Nowata | 225 | Nowata County |
| Oak Grove School | OK2006026 | NTNCWS | Cushing | 208 | Payne County |
| Oak Ridge Estates I & Ii Water Assoc. | OK6002173 | CWS | Afton | 62 | Delaware County |
| Oakland Pwa | OK3004513 | CWS | Madill | 1,050 | Marshall County |
| Oaks Mobile Home Park | OK3001934 | CWS | Ladera Ranch | 250 | Creek County |
| Oakview Water Corp | OK2004506 | CWS | Madill | 925 | Marshall County |
| Ochelata Utility Authority | OK3007414 | CWS | Ochelata | 494 | Washington County |
| Og&E | OK2006721 | NTNCWS | Konawa | 78 | Seminole County |
| Og&E Sooner Station | OK1021217 | NTNCWS | Red Rock | 125 | Noble County |
| Oilton | OK2001901 | CWS | Oilton | 1,435 | Creek County |
| Okarche | OK2003703 | CWS | Okarche | 1,110 | Canadian County, Kingfisher County |
| Okarche Rwd, Inc | OK2003715 | CWS | Okarche | 250 | Canadian County, Kingfisher County |
| Okay Pwa | OK3007351 | CWS | Okay | 767 | Muskogee County, Wagoner County |
| Okeene | OK2000612 | CWS | Okeene | 1,240 | Blaine County, Kingfisher County |
| Okemah Utilities Authority | OK1020706 | CWS | Okemah | 3,113 | Okfuskee County |
| Okfuskee Co. Rwd #1 (Boley) | OK2005402 | CWS | Boley | 1,000 | Okfuskee County |
| Okfuskee Co. Rwd #2 | OK3005402 | CWS | Okemah | 2,250 | Okfuskee County |
| Okla Natl Stockyards | OK6005527 | NTNCWS | Oklahoma City | 60 | Oklahoma County |
| Oklahoma Academy Cafe | OK6005584 | NTNCWS | Harrah | 60 | Oklahoma County |
| Oklahoma City North Canadian Stp | OK5005561 | NTNCWS | Oklahoma City | 30 | Oklahoma County |
| Oklahoma City Zoo | OK8005510 | NTNCWS | Oklahoma City | 2,500 | Oklahoma County |
| Oklahoma State Reformatory | OK2002803 | CWS | Granite | 999 | Greer County, Kiowa County |
| Okmulgee Co. Rwd #1 | OK3005605 | CWS | Schulter | 1,890 | Okmulgee County |
| Okmulgee Co. Rwd #2 (Preston) | OK3005604 | CWS | Preston | 2,355 | Okmulgee County |
| Okmulgee Co. Rwd #20 | OK3005606 | CWS | Morris | 2,377 | Muskogee County, Okmulgee County |
| Okmulgee Co. Rwd #21 | OK3005607 | CWS | Henryetta | 625 | Okmulgee County |
| Okmulgee Co. Rwd #4 | OK3005602 | CWS | Morris | 1,913 | McIntosh County, Okmulgee County |
| Okmulgee Co. Rwd #5 (Bryant) | OK2005604 | CWS | Henryetta | 750 | Okfuskee County, Okmulgee County |
| Okmulgee Co. Rwd #7 (Nuyaka) | OK3005608 | CWS | Okmulgee | 2,357 | Creek County, Okmulgee County |
| Olive School | OK2001935 | NTNCWS | Drumright | 465 | Creek County |
| Olustee Public Works Authority | OK3003309 | CWS | Olustee | 607 | Jackson County |
| Optima | OK2007001 | CWS | Optima | 400 | Texas County |
| Orlando | OK3004202 | CWS | Orlando | 201 | Logan County, Payne County |
| Osage Co Rwd # 1 | OK3005704 | CWS | Ochelata | 930 | Osage County, Washington County |
| Osage Co Rwd # 5 | OK3005721 | CWS | Barnsdall | 561 | Osage County |
| Osage Co Rwd #18 (Evergreen) | OK3005744 | CWS | Ramona | 302 | Osage County |
| Osage Co Rwd #20 (Hulah) | OK1021410 | CWS | Bartlesville | 350 | Osage County |
| Osage Co Rwd #21 | OK2003616 | CWS | Shidler | 1,500 | Kay County, Osage County |
| Osage Co Rws & Swd #3 (Braden) | OK3005748 | CWS | Ponca City | 700 | Osage County |
| Osage Nation Industrial Park | 063005728 | NTNCWS | Pawhuska | 250 | |
| Osage Park Addn Prop | OK2005744 | CWS | Osage | 65 | Osage County |
| Osage Pwa | OK2005701 | CWS | Osage | 275 | Osage County |
| Otoe-Missouria Tribe | OK1021222 | CWS | Red Rock | 250 | Noble County |
| Ottawa Co Rwd # 1 | OK2005805 | CWS | Wyandotte | 458 | Ottawa County |
| Ottawa Co Rwd # 2 | OK2005804 | CWS | Fairland | 700 | Ottawa County |
| Ottawa Co Rwd # 3 | OK2005806 | CWS | Quapaw | 140 | Ottawa County |
| Ottawa Co Rwd #5 | OK2005840 | CWS | Wyandotte | 750 | Ottawa County |
| Ottawa Co Rwd #6 | OK2005859 | CWS | Miami | 560 | Ottawa County |
| Ottawa Co Rwd #7 | OK2005860 | CWS | Fairland | 500 | Ottawa County |
| Ozark Rural Water Inc | OK3001125 | CWS | Fort Gibson | 99 | Cherokee County |
| Paden | OK2005401 | CWS | Paden | 446 | Okfuskee County |
| Panama Pwa | OK3004016 | CWS | Panama | 1,400 | Le Flore County |
| Panhandle State University | OK2007002 | CWS | Goodwell | 1,200 | Texas County |
| Panhandle State University Farm | OK2007050 | NTNCWS | Goodwell | 50 | Texas County |
| Paoli | OK2002502 | CWS | Paoli | 610 | Garvin County |
| Pawnee | OK1021209 | CWS | Pawnee | 2,230 | Pawnee County |
| Pawnee Co Rwd #1 | OK2005931 | CWS | Cleveland | 3,200 | Pawnee County |
| Pawnee Co Rwd #2 | OK3005921 | CWS | Terlton | 1,775 | Pawnee County |
| Pawnee Co Rwd #3 | OK3005911 | CWS | Pawnee | 685 | Pawnee County |
| Pawnee Co Rwd #4 | OK3005913 | CWS | Pawnee | 415 | Pawnee County |
| Pawnee County Rwd #5 | OK3005902 | CWS | Pawnee | 225 | Pawnee County |
| Pawnee Tribal Complex | 064026001 | CWS | Pawnee | 485 | |
| Payne Co Rw Corp #3 | OK3006030 | CWS | Stillwater | 3,000 | Payne County |
| Payne Co Rwd #3 | OK2006011 | CWS | Stillwater | 1,400 | Noble County, Payne County |
| Payne Co Rwd #4 | OK3006001 | CWS | Yale | 820 | Pawnee County, Payne County |
| Pecan Tree Water Assn | OK2001475 | CWS | Noble | 22 | Cleveland County |
| Pecan Valley Rwd | OK3001676 | CWS | Lawton | 1,000 | Comanche County |
| Peggs Water Company | OK1221630 | CWS | Hulbert | 1,925 | Cherokee County, Mayes County |
| Peppers Ranch | OK4004216 | CWS | Guthrie | 99 | Logan County |
| Perkins | OK2006012 | CWS | Perkins | 2,572 | Payne County |
| Pettit Mountain Water | OK1021702 | CWS | Park Hill | 90 | Cherokee County |
| Phillips Rwd #1 | OK3001503 | CWS | Coalgate | 140 | Coal County |
| Pine Country Living Mhp | OK2006311 | CWS | Mcloud | 100 | Pottawatomie County |
| Pittsburg | OK1020604 | CWS | Pittsburg | 280 | Pittsburg County |
| Pittsburg Co. Pwa (Crowder) | OK1020603 | CWS | Crowder | 2,203 | Pittsburg County |
| Pittsburg Co. Rwd #14 | OK1020625 | CWS | Mcalester | 1,680 | Pittsburg County |
| Pittsburg Co. Rwd #20 (Carlton Landing) | OK3006139 | CWS | Carlton Landing | 38 | Pittsburg County |
| Pittsburg Co. Rwd #5 | OK3006115 | CWS | Mcalester | 1,750 | Pittsburg County |
| Pittsburg Co. Rwd #6 (Alderson) | OK3006109 | CWS | Mcalester | 300 | Pittsburg County |
| Pittsburg Co. Rwd #7 (Arpelar) | OK3006108 | CWS | Mcalester | 2,040 | Pittsburg County |
| Pittsburg Co. Rwd #9 (Mcalester) | OK3006107 | CWS | Mcalester | 872 | Pittsburg County |
| Pittsburg Co. Water Authority | OK1020616 | CWS | Mcalester | 5 | Pittsburg County |
| Ponca Fancy Dance Casino | 063003615 | NTNCWS | Ponca City | 262 | |
| Ponca Tribe Of Oklahoma | 063003614 | CWS | Ponca City | 360 | Kay County |
| Pond Creek | OK2002702 | CWS | Pond Creek | 982 | Grant County |
| Pontotoc Co Rwd # 1 (Homer) | OK3006205 | CWS | Ada | 441 | Pontotoc County |
| Pontotoc Co Rwd # 6 (Fittstown) | OK3006222 | CWS | Fittstown | 896 | Pontotoc County |
| Pontotoc Co Rwd # 9 | OK3006218 | CWS | Stonewall | 1,162 | Coal County, Pontotoc County |
| Porter Pwa | OK3007306 | CWS | Porter | 2,400 | Wagoner County |
| Poteau Valley Improvement Authority | OK1020104 | CWS | Wister | 10 | Le Flore County |
| Pottawatomie Co Development Auth | OK3006303 | CWS | Shawnee | 1,200 | Pottawatomie County |
| Pottawatomie Co. Rwd #3 (Dale Plant) | OK3006314 | CWS | Shawnee | 313 | Pottawatomie County |
| Pottawatomie County Rwd #3 | OK1020807 | CWS | Shawnee | 560 | McClain County, Pottawatomie County |
| Potters Trailer Park | OK2000511 | CWS | Elk City | 150 | Beckham County |
| Prague | OK2004101 | CWS | Prague | 2,395 | Lincoln County, Pottawatomie County |
| Prairie Creek Village Mhp | OK2001468 | CWS | Noble | 145 | Cleveland County |
| Prestage Farms Ext Truckwash Truck Shop | OK2007063 | NTNCWS | Texhoma | 30 | Texas County |
| Prue Pwa | OK2005703 | CWS | Prue | 387 | Osage County |
| Pushmataha Co. Rwd #1 | OK3006403 | CWS | Clayton | 1,200 | Pushmataha County |
| Pushmataha Co. Rwd #2 (Albion) | OK3006402 | CWS | Albion | 959 | Latimer County, Le Flore County, Pushmataha County |
| Pushmataha Co. Rwd #5 (Nashoba) | OK3006410 | CWS | Nashoba | 725 | Pushmataha County |
| Quapaw | OK2005811 | CWS | Quapaw | 906 | Ottawa County |
| Quapaw Industrial Park | 062005838 | NTNCWS | Quapaw | 1,835 | |
| Quapaw Tribe | OK2005812 | CWS | Miami | 55 | Ottawa County |
| Quartz Mountain Reg Water Auth | OK2003880 | CWS | Lone Wolf | 5 | Kiowa County |
| Quinlan Community Rwd #1 | OK2007708 | CWS | Mooreland | 185 | Major County, Woodward County |
| Quinton | OK3006123 | CWS | Quinton | 1,071 | Pittsburg County |
| R&C Water Corp | OK3002703 | CWS | Medford | 400 | Grant County, Kay County |
| Ralphs Packing | OK2006064 | NTNCWS | Perkins | 50 | Payne County |
| Ralston | OK2005901 | CWS | Ralston | 335 | Pawnee County |
| Ratliff City | OK3001004 | CWS | Ratliff City | 131 | Carter County |
| Ravia | OK2003504 | CWS | Ravia | 459 | Johnston County |
| Red Bird Pwa | OK3007305 | CWS | Red Bird | 153 | Wagoner County |
| Red Oak Pwa | OK1020105 | CWS | Red Oak | 581 | Latimer County |
| Red Rock | OK2005202 | CWS | Red Rock | 293 | Noble County |
| Red Wagon Mhp | OK2006045 | CWS | Stillwater | 46 | Payne County |
| Redbud Power Plant | OK8005533 | NTNCWS | Luther | 25 | Oklahoma County |
| Reed Water Corp | OK3002802 | CWS | Mangum | 175 | Greer County, Harmon County |
| Ringling | OK2003404 | CWS | Ringling | 1,200 | Jefferson County |
| Ringwood | OK2004405 | CWS | Ringwood | 424 | Major County |
| Ripley Pwa | OK2006013 | CWS | Ripley | 376 | Payne County |
| Riverbend Mhp | OK3007232 | CWS | San Jose | 500 | Tulsa County |
| Robin Hill School | OK2001429 | NTNCWS | Norman | 330 | Cleveland County |
| Rock Creek | OK2004205 | CWS | Edmond | 33 | Logan County |
| Rocky | OK3007501 | CWS | Rocky | 202 | Washita County |
| Roff | OK2006206 | CWS | Roff | 800 | Pontotoc County |
| Roger Mills Rwd # 2 (Red Star) | OK2006505 | CWS | Leedey | 800 | Custer County, Dewey County, Ellis County, Roger Mills County |
| Roger Mills Rws & Swmd #1 | OK2006502 | CWS | Cheyenne | 200 | Roger Mills County |
| Roger Mills Rws & Swmd #3 (Reydon) | OK2006501 | CWS | Reydon | 177 | Roger Mills County |
| Rogers Co Rwd # 2 | OK3006603 | CWS | Claremore | 2,750 | Rogers County |
| Rogers Co Rwd # 6 | OK3006628 | CWS | Inola | 1,560 | Rogers County |
| Rogers Co Rwd # 7 | OK3006604 | CWS | Claremore | 3,040 | Rogers County |
| Rogers Co Rwd # 9 | OK3006605 | CWS | Claremore | 1,037 | Rogers County |
| Rogers Co Rwd #12 | OK3006648 | CWS | Owasso | 176 | Rogers County |
| Roland | OK1020212 | CWS | Roland | 2,842 | Sequoyah County |
| Roosevelt Pwa | OK2003802 | CWS | Roosevelt | 280 | Kiowa County |
| Roundhill Rwd #4 | OK3001504 | CWS | Coalgate | 219 | Coal County |
| Rush Springs | OK2002609 | CWS | Rush Springs | 1,278 | Grady County |
| Ryan Utilities Authority | OK3003405 | CWS | Ryan | 800 | Jefferson County |
| Sac & Fox Nation | 062004108 | CWS | Stroud | 479 | Lincoln County |
| Salina Pwa | OK1021603 | CWS | Salina | 1,422 | Mayes County |
| Salt Creek Camp South | OK2001249 | CWS | Hugo | 80 | Choctaw County |
| Salt Fork Water Authority | OK3002418 | CWS | Garber | 86 | Garfield County |
| Sardis Lake Water Authority | OK1010319 | CWS | Clayton | 307 | Latimer County, Pushmataha County |
| Sasakwa Pwa | OK2006705 | CWS | Sasakwa | 150 | Seminole County |
| Sasakwa Rwd | OK2006708 | CWS | Sasakwa | 210 | Seminole County |
| Savanna | OK3006104 | CWS | Savanna | 800 | Pittsburg County |
| Schwartz School (Mid Del) | OK4005548 | NTNCWS | Midwest City | 290 | Cleveland County |
| Seaboard Foods Beaver Co #46 | OK2000472 | NTNCWS | Shawnee Mission | 33 | Beaver County |
| Seaboard Foods Beaver Co #47 | OK2000473 | NTNCWS | Shawnee Mission | 34 | Beaver County |
| Seaboard Foods Beaver Co #48 | OK2000474 | NTNCWS | Shawnee Mission | 34 | Beaver County |
| Seaboard Foods Beaver Co #49 | OK2000475 | NTNCWS | Shawnee Mission | 33 | Beaver County |
| Seaboard Foods Inc Optima Feedmill | OK2007055 | NTNCWS | Shawnee Mission | 50 | Texas County |
| Seiling | OK2002205 | CWS | Seiling | 860 | Dewey County, Major County |
| Select 9 Site | OK2002319 | NTNCWS | Laverne | 30 | Ellis County |
| Seminole Co. Rw&Swmd #3 | OK3006703 | CWS | Cromwell | 337 | Hughes County, Okfuskee County, Seminole County |
| Seminole Co. Rwd #1 | OK3006702 | CWS | Wewoka | 387 | Seminole County |
| Seminole Co. Rwd #2 | OK3006701 | CWS | Wewoka | 315 | Seminole County |
| Seminole Co. Rwd #7 | OK2006756 | CWS | Earlsboro | 450 | Seminole County |
| Seneca-Cayuga Nation | OK1221644 | CWS | Grove | 400 | Delaware County |
| Sentinel Pws | OK3007505 | CWS | Sentinel | 859 | Washita County |
| Sequoyah Co. Rwd #3 | OK3006804 | CWS | Sallisaw | 1,040 | Sequoyah County |
| Sequoyah Co. Rwd #4 | OK3006809 | CWS | Sallisaw | 1,750 | Sequoyah County |
| Sequoyah Co. Rwd #5 | OK1021775 | CWS | Gore | 1,075 | Sequoyah County |
| Sequoyah Co. Rwd #5 | OK3006815 | CWS | Gore | 250 | Sequoyah County |
| Sequoyah Co. Rwd #7 | OK3006806 | CWS | Muldrow | 2,948 | Sequoyah County |
| Sequoyah State Park Lodge | OK1021697 | NTNCWS | Hulbert | 1,030 | Cherokee County |
| Shady Acres Custer County | OK2002023 | CWS | Weatherford | 40 | Custer County |
| Sharon Utilities | OK2007741 | CWS | Sharon | 175 | Woodward County |
| Shattuck | OK2002304 | CWS | Shattuck | 1,200 | Ellis County |
| Shell Creek Rwd #12, Mcintosh Co. | OK2004919 | CWS | Hanna | 175 | McIntosh County |
| Sherwood Forest Mobile Estates | OK2005532 | CWS | Harris | 172 | Oklahoma County |
| Shidler | OK1021203 | CWS | Shidler | 404 | Osage County |
| Skyline Mhp | OK2005542 | CWS | Del City | 120 | Oklahoma County |
| Skyview Mobile Home Park | OK2002601 | CWS | Boise | 24 | Grady County |
| Slick | OK3001921 | CWS | Slick | 148 | Creek County |
| Sntp-Rivermist | OK2006755 | NTNCWS | Seminole | 49 | Pontotoc County, Seminole County |
| Snyder Public Works Authority | OK1011503 | CWS | Snyder | 1,509 | Kiowa County |
| Sooner Utilities - Circle C Estates | OK4005589 | CWS | Edmond | 155 | Oklahoma County |
| Sooner Utilities - Sleepy Hollow | OK5005560 | CWS | Edmond | 438 | Cleveland County |
| Sooner Utilities-Crosby #1 | OK2005522 | CWS | Edmond | 168 | Oklahoma County |
| Sooner Utilities-Crosby #2 | OK5005518 | CWS | Edmond | 385 | Oklahoma County |
| Sooner Utilities-Crutcho | OK2005529 | CWS | Edmond | 93 | Oklahoma County |
| Sooner Utilities-Robertson | OK2005531 | CWS | Edmond | 83 | Oklahoma County |
| Sooner Utilities-Tinker Town | OK5005519 | CWS | Edmond | 603 | Oklahoma County |
| Sooner Utilities-Valley Brook | OK2005521 | CWS | Edmond | 853 | Oklahoma County |
| Soper | OK2001201 | CWS | Soper | 300 | Choctaw County |
| South Coffeyville | OK3005305 | CWS | South Coffeyville | 790 | Nowata County |
| South Delaware Co Regional Water Auth. | OK1221645 | CWS | Kansas | 1,500 | Delaware County |
| Southeast Water Association | OK3001678 | CWS | Lawton | 51 | Comanche County |
| Southern Hills Estates | OK2002664 | CWS | Tuttle | 200 | Grady County |
| Spavinaw | OK1021616 | CWS | Spavinaw | 432 | Mayes County |
| Sperry | OK3007202 | CWS | Sperry | 1,200 | Tulsa County |
| Spiro | OK1020106 | CWS | Spiro | 2,200 | Le Flore County |
| Spiro East Water Association | OK3004005 | CWS | Spiro | 1,817 | Le Flore County |
| Sportsmen Acres | OK3004605 | CWS | Pryor | 218 | Mayes County |
| Spring Cove Rv Park&Marina Onlake Hudson | OK2004617 | CWS | Catoosa | 225 | Mayes County |
| St. Louis Rwd | OK2006304 | CWS | St. Louis | 225 | Pottawatomie County |
| Steelman Estates | OK2006374 | CWS | Shawnee | 45 | Pottawatomie County |
| Stephens Co Rw&Sd #1 | OK2006906 | CWS | Velma | 960 | Stephens County |
| Stephens Co Rwd #3 (Meridian) | OK2006905 | CWS | Comanche | 1,610 | Stephens County |
| Sterling Pwa | OK2001601 | CWS | Sterling | 762 | Comanche County |
| Stickross Mountain Water Co | OK4001118 | CWS | Tahlequah | 3,250 | Cherokee County |
| Stidham School | OK2004907 | NTNCWS | Eufaula | 160 | McIntosh County |
| Stigler | OK1020303 | CWS | Stigler | 2,731 | Haskell County |
| Stilwell | OK1020205 | CWS | Stilwell | 3,276 | Adair County |
| Stonebrook Utility Company | OK2006759 | CWS | Lincoln | 136 | Seminole County |
| Stonetown Clearview Mhc | OK2001483 | CWS | Noble | 170 | Cleveland County |
| Stonewall Pwa | OK2006203 | CWS | Stonewall | 465 | Pontotoc County |
| Straight School | OK2007056 | NTNCWS | Guymon | 56 | Texas County |
| Stratford | OK2002503 | CWS | Stratford | 1,575 | Garvin County |
| Strike Axe (Chimney Rock) | OK3005739 | CWS | Bartlesville | 275 | Osage County |
| Strike-Axe Hwy 60 | OK3005701 | CWS | Bartlesville | 450 | Osage County |
| Strikeaxe Airport | OK3005738 | CWS | Bartlesville | 125 | Osage County |
| Stringtown Pwa | OK3000303 | CWS | Stringtown | 1,105 | Atoka County |
| Stroud Utilities Authority | OK1020705 | CWS | Stroud | 2,811 | Lincoln County |
| Suburban Mhp | OK2001104 | CWS | Park Hill | 50 | Cherokee County |
| Sugar Mountain Retreat | OK4001109 | NTNCWS | Welling | 65 | Cherokee County |
| Summit Ridge Retirement Center, Inc. | OK7005529 | CWS | Harrah | 200 | Oklahoma County |
| Sundowner Trailer | OK2003524 | NTNCWS | Coleman | 450 | Bryan County, Johnston County |
| Sunnylane Estates | OK2001446 | CWS | Marina Del Rey | 300 | Cleveland County |
| Sunnyside Water Assoc | OK3001664 | CWS | Lawton | 50 | Comanche County |
| Surrey Hills | OK2007022 | CWS | Elkhart | 87 | Texas County |
| Sw Water Inc | OK3002706 | CWS | Pond Creek | 200 | Alfalfa County, Garfield County, Grant County |
| Taft | OK3005118 | CWS | Taft | 250 | Muskogee County |
| Talihina Pwa | OK1010304 | CWS | Talihina | 950 | Le Flore County |
| Taloga | OK2002207 | CWS | Taloga | 372 | Dewey County |
| Temple | OK1011306 | CWS | Temple | 1,146 | Cotton County |
| Tenkiller Waterworks, Inc. | OK1021756 | CWS | New Port Richey | 860 | Cherokee County |
| Terral | OK2003405 | CWS | Terral | 386 | Jefferson County |
| Texas County Rwd #1 | OK2007010 | CWS | Adams | 135 | Texas County |
| Texhoma | OK2007009 | CWS | Texhoma | 935 | Texas County |
| Texoma Hills | OK2004538 | CWS | Madill | 212 | Marshall County |
| Thackerville | OK2004303 | CWS | Thackerville | 2,000 | Love County |
| Thirsty Water Corp | OK2002806 | CWS | Hollis | 81 | Beckham County, Greer County |
| Thomas | OK2002001 | CWS | Thomas | 1,238 | Custer County |
| Three Springs Farm | OK4001138 | NTNCWS | Rose | 89 | Cherokee County |
| Tillman Co Rwd #1 | OK2007107 | CWS | Chattanooga | 1,500 | Comanche County, Cotton County, Tillman County |
| Timber Creek Mhp East & West | OK2006367 | CWS | Mcloud | 40 | Pottawatomie County |
| Timberland Mhc | OK4005573 | CWS | Denver | 200 | Oklahoma County |
| Tinker Afb Family Housing | OK8005550 | CWS | Tinker Afb | 2,100 | Oklahoma County |
| Tipton | OK2007101 | CWS | Tipton | 916 | Tillman County |
| Tishomingo Municipal Authority | OK1010815 | CWS | Tishomingo | 3,000 | Johnston County |
| Toland Acres Mhp | OK5005525 | CWS | Nicoma Park | 96 | Oklahoma County |
| Tonkawa | OK2003603 | CWS | Tonkawa | 3,299 | Kay County |
| Tonkawa Tribe Of Oklahoma | 062005885 | CWS | Tonkawa | 400 | |
| Traverse Wind Energy, Llc | OK2002056 | NTNCWS | Columbus | 75 | Custer County |
| Tri-County Electric Cooperative | OK4007082 | NTNCWS | Hooker | 120 | Texas County |
| Trucks And Teacups Daycare | OK5001436 | NTNCWS | Noble | 75 | Cleveland County |
| Tryon | OK2004103 | CWS | Tryon | 448 | Lincoln County |
| Tullahassee Water | OK3007338 | CWS | Tullahassee | 106 | Wagoner County |
| Tulsa Co W Imp Dist #14 | OK3007213 | CWS | Sand Springs | 1,400 | Tulsa County |
| Tumbleweed Sagebrush Site | OK2002320 | NTNCWS | Laverne | 45 | Ellis County |
| Tupelo Pwa | OK3001506 | CWS | Tupelo | 377 | Coal County |
| Turkey Ford Public School Dist C010 | OK2005843 | NTNCWS | Wyandotte | 85 | Ottawa County |
| Tyrone | OK2007013 | CWS | Tyrone | 880 | Texas County |
| Union City | OK3000909 | CWS | Union City | 618 | Canadian County |
| Us Army Ammunition Plant | OK1020605 | CWS | Mcalester | 1,872 | Pittsburg County |
| Us Gypsum | OK2000601 | NTNCWS | Southard | 280 | Blaine County |
| Us Silica | OK2003514 | NTNCWS | Mill Creek | 31 | Johnston County |
| Valley Brook Mhp | OK3001933 | CWS | Jose | 114 | Creek County |
| Valley View Estates Homeowners Assoc | OK3001687 | CWS | Lawton | 42 | Comanche County |
| Valley View Water Association | OK3001681 | CWS | Lawton | 25 | Comanche County |
| Valliant Pwa | OK3004812 | CWS | Valliant | 971 | McCurtain County |
| Vance Afb | OK3002402 | CWS | Enid | 3,231 | Garfield County |
| Verden | OK4002619 | CWS | Verden | 659 | Caddo County, Grady County |
| Vian | OK3006812 | CWS | Vian | 1,445 | Sequoyah County |
| Vici | OK2002203 | CWS | Vici | 668 | Dewey County |
| Wagon Wheel Wind O&M | OK4004221 | NTNCWS | Chicago | 54 | Logan County |
| Wagoner Co. Rwd #1 | OK1021650 | CWS | Wagoner | 397 | Wagoner County |
| Wagoner Co. Rwd #2 | OK1021643 | CWS | Wagoner | 2,000 | Wagoner County |
| Wagoner Co. Rwd #6 | OK3007330 | CWS | Wagoner | 1,500 | Wagoner County |
| Wakita | OK2002706 | CWS | Wakita | 344 | Alfalfa County, Grant County |
| Walnut Park Estates | OK2005766 | CWS | Prue | 42 | Osage County |
| Walters Public Works Authority | OK1011305 | CWS | Walters | 2,551 | Cotton County |
| Wanette Public Works Authority | OK3006310 | CWS | Wanette | 402 | Pottawatomie County |
| Wapanucka | OK2003518 | CWS | Wapanucka | 420 | Johnston County |
| Warner | OK1020409 | CWS | Warner | 2,020 | Muskogee County |
| Washington | OK2004703 | CWS | Washington | 600 | McClain County |
| Washington Co Rwd #1 | OK3007401 | CWS | Ochelata | 1,375 | Washington County |
| Washington Co Rwd #2 | OK3007403 | CWS | Ochelata | 2,250 | Washington County |
| Washington Co Rwd #5 | OK3007409 | CWS | Ramona | 900 | Washington County |
| Washington Co Rwd #7 | OK3007415 | CWS | Dewey | 258 | Washington County |
| Washington Elementary School | OK4001452 | NTNCWS | Norman | 600 | Cleveland County |
| Washita Co Rwd #2 | OK2007511 | CWS | Colony | 1,032 | Caddo County, Custer County, Washita County |
| Water Improvement District #3 | OK3007221 | CWS | Tulsa | 2,475 | Tulsa County |
| Watts | OK3000108 | CWS | Watts | 316 | Adair County |
| Waukomis Pwa | OK2002410 | CWS | Waukomis | 1,366 | Garfield County |
| Waurika Public Works Authority | OK1011201 | CWS | Waurika | 2,100 | Jefferson County |
| Wayne | OK2004702 | CWS | Wayne | 688 | McClain County |
| Waynoka | OK2007604 | CWS | Waynoka | 993 | Woods County |
| Welch Pwa | OK2001801 | CWS | Welch | 800 | Craig County |
| Weleetka Public Works Authority | OK1020512 | CWS | Weleetka | 998 | Okfuskee County |
| Wellston | OK1020724 | CWS | Wellston | 825 | Lincoln County |
| West Davis Rwd | OK3005004 | CWS | Hennepin | 500 | Carter County, Murray County |
| West Siloam Springs | OK3002109 | CWS | Colcord | 877 | Delaware County |
| Western Carter Co Water Corp | OK2001003 | CWS | Ratliff City | 2,000 | Carter County |
| Western Farmers | OK1010316 | NTNCWS | Fort Towson | 86 | Choctaw County |
| Western Farmers Plant | OK2007722 | NTNCWS | Mooreland | 45 | Woodward County |
| Westport Utility Authority Trust | OK2005910 | CWS | Cleveland | 289 | Pawnee County |
| Westville Utility Authority | OK3000109 | CWS | Westville | 1,596 | Adair County |
| Wetumka | OK1020508 | CWS | Wetumka | 1,451 | Hughes County |
| Whippoorwill Estates | OK2004734 | CWS | Norman | 83 | McClain County |
| Whispering Oaks | OK2004257 | CWS | Edmond | 350 | Logan County |
| White Rock School | OK2004102 | NTNCWS | Mcloud | 100 | Lincoln County |
| Wilburton | OK1020103 | CWS | Wilburton | 3,025 | Latimer County |
| Wildfire Estates Homeowners | OK2001477 | CWS | Norman | 285 | Cleveland County |
| Willow | OK2002801 | CWS | Willow | 114 | Greer County |
| Willow Creek Mhp | OK2005535 | CWS | Harrah | 99 | Oklahoma County |
| Wilson Municipal Authority | OK2001001 | CWS | Wilson | 1,600 | Carter County |
| Winter Creek Water Company, Llc | OK4002663 | CWS | Blanchard | 46 | Grady County |
| Wister | OK3004014 | CWS | Wister | 1,002 | Le Flore County |
| Women'S Firstep | OK7005594 | NTNCWS | Oklahoma City | 56 | Cleveland County |
| Woods Co Rwd #2 | OK3007603 | CWS | Freedom | 42 | Harper County, Woods County |
| Woods County Rwd # 1 | OK3007602 | CWS | Capron | 426 | Alfalfa County, Woods County |
| Woods County Rwd # 3 | OK3007605 | CWS | Alva | 356 | Woods County |
| Woodward Co Rwd #1 | OK2007706 | CWS | Mooreland | 315 | Woods County, Woodward County |
| Woodward Co Rwd #2 | OK2007710 | CWS | Woodward | 920 | Woodward County |
| Wright City Pwa | OK3004811 | CWS | Wright City | 792 | McCurtain County |
| Wyandotte Nation | 062005883 | CWS | 1,886 | Ottawa County | |
| Wyandotte Tribe Of Oklahoma | OK2005883 | CWS | Wyandotte | 51 | Ottawa County |
| Wynnewood Water & Light | OK1010812 | CWS | Wynnewood | 2,307 | Garvin County, Murray County |
| Wynona | OK2005708 | CWS | Wynona | 450 | Osage County |
| Wynona School | OK2005768 | NTNCWS | Wynona | 140 | Osage County |
| Yale | OK3006039 | CWS | Yale | 1,227 | Payne County |
| Yarbrough School District I-1 | OK2007021 | NTNCWS | Goodwell | 125 | Texas County |