| Okc South Canadian Wwt | Oklahoma City | 50.42 |
| Northside Wastewater Treatment Plant | Tulsa | 26.13 |
| Tmua South | Tulsa | 25.04 |
| Ok City Water Util Trst-Deer Ck | Oklahoma City | 15.97 |
| Haikey Creek Wastewater Treatment Plant | Broken Arrow | 13.98 |
| Lawton, City Of | Lawton | 13.13 |
| Norman (main) Wwt | Norman | 11.2 |
| Ok City Water Util Trst-Chisholm | Edmond | 8.17 |
| Edmond, City Of - Coffee Creek | Edmond | 7.58 |
| City Of Moore WWTP | Moore | 6.6 |
| Midwest City Wwt | Oklahoma City | 6.26 |
| City Of Muskogee Pollution Control Plant | Muskogee | 5.95 |
| Lynn Lane Waste Water Treatment Plant | Broken Arrow | 5.65 |
| Enid, City Of | Enid | 5.59 |
| Stillwater, City Of | Stillwater | 5.37 |
| Oowa / Tsc | Pryor | 4.74 |
| Ponca City, City Of | Ponca City | 4.56 |
| Tahlequah Pwa | Tahlequah | 4.45 |
| Yukon, City Of | Yukon | 3.69 |
| Okmulgee WWTP | Okmulgee | 3.24 |
| Owasso Public Works Authority | Owasso | 3.18 |
| Bixby Pulbic Works Auth -South | Bixby | 3.14 |
| City Of Claremore WWTP | Claremore | 3.08 |
| Del City Municipal Svcs. Auth | Del City | 2.87 |
| Durant City Utilities Auth | Durant | 2.8 |
| Altus SE Wastewater Treatment Plant | Altus | 2.58 |
| City Of Ardmore Wastewater Treatment Plant | Ardmore | 2.55 |
| Ada, City Of | Ada | 2.32 |
| Duncan Public Utilities Auth | Duncan | 2.24 |
| Jenks Wastewater Treat. Plant | Jenks | 2.22 |
| Mustang Improvement Authority | Mustang | 2.21 |
| Sand Springs Main WWTP | Sand Springs | 2.07 |
| Miami WWTF-SE Plant | Miami | 2.01 |
| City Of Sallisaw Solid Waste Disposal Facility | Sallisaw | 1.83 |
| Mcalester, City Of - West Plant | Mcalester | 1.76 |
| Chickasha WWTP | Chickasha | 1.71 |
| Foss Reservoir M.C.D. | Foss | 1.61 |
| El Reno Municipal Authority | El Reno | 1.58 |
| Shawnee Municipal Auth-South | Shawnee | 1.57 |
| Pryor Creek WWTP | Pryor | 1.37 |
| Shawnee Municipal Auth- North | Shawnee | 1.31 |
| Tulsa MUA-Lower Bird Ck Plant | Catoosa | 1.31 |
| Poteau, City Of | Poteau | 1.26 |
| Seminole Wwt | Seminole | 1.23 |
| Cushing, City Of - South STP | Cushing | 1.2 |
| Weatherford Public Works Authority | Weatherford | 1.19 |
| Coweta Pwa | Coweta | 1.19 |
| Collinsville, City Of | Collinsville | 1.17 |
| Mcalester East WWTP | Mcalester | 1.1 |
| Idabel Public Works Authority | Idabel | 1.09 |
| Guymon City Of | Guymon | 1.07 |
| Blackwell, City Of | Blackwell | 1.05 |
| Guthrie | Guthrie | 1.03 |
| Hugo Municipal Authority | Hugo | 1.01 |
| Skiatook, Town Of | Skiatook | 0.99 |
| Purcell Wwt | Purcell | 0.98 |
| Vinita Wwt | Vinita | 0.97 |
| Choctaw Utilities Authority | Choctaw | 0.95 |
| Wagoner | Wagoner | 0.94 |
| Glenpool Wwt | Glenpool | 0.93 |
| Sulphur Municipal Authority | Sulphur | 0.85 |
| Nowata, City Of | Nowata | 0.83 |
| Kingfisher | Kingfisher | 0.79 |
| Clinton, City Of | Clinton | 0.77 |
| Stilwell Area Development Auth | Stilwell | 0.74 |
| Noble Utilities Auth - North | Noble | 0.72 |
| Grove Msa | Grove | 0.7 |
| Holdenville Pwa | Holdenville | 0.68 |
| Atoka, City Of | Atoka | 0.65 |
| Drumright Utilities Trust | Drumright | 0.6 |
| Anadarko Pwa | Anadarko | 0.58 |
| Newcastle Public Works Auth. | Newcastle | 0.56 |
| Antlers Pwa | Antlers | 0.56 |
| Eufaula Public Works Authority | Eufaula | 0.55 |
| Wagoner County Rwsg & Swm D#4 | Coweta | 0.55 |
| Chickasaw Tribal Utilities Authority | Thackerville | 0.54 |
| Fort Gibson | Fort Gibson | 0.54 |
| Perry, City Of | Perry | 0.53 |
| Rogers County Rsd #1 | Claremore | 0.53 |
| Heavener Utility Authority | Heavener | 0.53 |
| Sapulpa WWTF | Sapulpa | 0.53 |
| City Of Seneca | West Seneca | 0.48 |
| Madill Pwa | Madill | 0.47 |
| Stigler Municipal Improvement Authority | Stigler | 0.47 |
| Checotah WWTP | Checotah | 0.47 |
| Pauls Valley Wwt | Pauls Valley | 0.46 |
| Lexington Public Works Auth | Lexington | 0.44 |
| Jay Utilities Authority | Jay | 0.44 |
| Muldrow Utility Authority | Muldrow | 0.43 |
| Locust Grove | Locust Grove | 0.42 |
| Davis, City Of | Davis | 0.41 |
| Harrah Pwa | Harrah | 0.41 |
| Dewey Public Works Authority | Dewey | 0.4 |
| Hydro, Town Of | Hydro | 0.4 |
| Okemah Utilities Authority | Okemah | 0.4 |
| Roland, Town Of | Roland | 0.39 |
| Wynnewood Water & Light | Wynnewood | 0.37 |
| Wewoka Public Works Authority-Wewoka WTP | Wewoka | 0.36 |
| Wilburton Pwa -Industrial Park | Wilburton | 0.35 |
| Ardmore, City Of -Industrial Park | Ardmore | 0.35 |
| Mcloud Pwa | Mcloud | 0.34 |
| Chandler Municipal Authority | Chandler | 0.34 |
| Tecumseh, City Of | Tecumseh | 0.33 |
| Panama Public Works Authority | Panama | 0.32 |
| Chouteau Pwa | Chouteau | 0.32 |
| Calera Pwa | Calera | 0.32 |
| Lindsay, City Of | Lindsay | 0.3 |
| South Coffeyville Pwa | South Coffeyville | 0.3 |
| Westville Utility Auth | Westville | 0.3 |
| Stroud South Wwt | Stroud | 0.29 |
| Braggs Pwa | Braggs | 0.27 |
| Pocola Municipal Authority | Pocola | 0.27 |
| Haskell Pub Works Auth | Haskell | 0.27 |
| Langston WWTP | Langston | 0.26 |
| Mill Creek, Town Of | Mill Creek | 0.26 |
| Perkins Wwt | Perkins | 0.26 |
| Marietta, City Of | Marietta | 0.26 |
| Kiefer Public Works Authority | Kiefer | 0.25 |
| Lone Grove W&s Trust Auth-East | Lone Grove | 0.25 |
| Coalgate Pwa | Coalgate | 0.25 |
| Inola Public Works Authority | Inola | 0.25 |
| Spiro Mia | Spiro | 0.25 |
| Mannford Wwt | Mannford | 0.25 |
| Shidler, City Of | Shidler | 0.25 |
| Bristow Municipal Authority | Bristow | 0.24 |
| Soper Public Works Authority | Soper | 0.24 |
| Krebs Utilities Authority | Krebs | 0.23 |
| Watonga, City Of | Watonga | 0.23 |
| Tishomingo, City Of | Tishomingo | 0.23 |
| Salina Public Works Auth | Salina | 0.22 |
| Cordell, City Of | Cordell | 0.21 |
| Bokchito, City Of | Bokchito | 0.21 |
| Commerce-Cl2 Station - Well 5 | Commerce | 0.19 |
| Prague, City Of | Prague | 0.19 |
| Stroud Ua-North Plant | Stroud | 0.17 |
| Meeker, Town Of | Meeker | 0.17 |
| Cherokee Former City Hall | Cherokee | 0.15 |
| Weleetka Pwa | Weleetka | 0.15 |
| Sperry Pwa Wwt | Sperry | 0.15 |
| Ottawa Co Rwd #1 | Wyandotte | 0.14 |
| Stratford Public Works Auth. | Stratford | 0.14 |
| Cleveland South WWTP | Cleveland | 0.13 |
| Quapaw Pwa | Quapaw | 0.13 |
| Barnsdall, City Of | Barnsdall | 0.13 |
| Healdton Wwt | Healdton | 0.13 |
| Morris, City Of -NW Plant | Morris | 0.12 |
| Kingston, Town Of | Kingston | 0.12 |
| Afton Pwa | Afton | 0.12 |
| Clayton Pwa | Clayton | 0.11 |
| Town Of Vian / Vian Pwa | Vian | 0.11 |
| Colbert Wwt | Colbert | 0.11 |
| Pawhuska, City Of | Pawhuska | 0.11 |
| Maud, City Of | Maud | 0.11 |
| Pawnee | Pawnee | 0.1 |
| Spencer, City Of | Spencer | 0.1 |
| Carnegie Public Works Auth. | Carnegie | 0.1 |
| Wellston Pwa | Wellston | 0.1 |
| Hulbert Public Works Authority | Hulbert | 0.1 |
| Fairfax Public Works Auth | Fairfax | 0.1 |
| Jim E. Hamilton Correctional Center | Hodgen | 0.1 |
| Konawa, City Of | Konawa | 0.09 |
| Langley Public Works Authority | Langley | 0.09 |
| Depew, Town Of | Depew | 0.09 |
| Ok St Dept Of Corrections-Howa | Atoka | 0.09 |
| Allen, Town Of | Allen | 0.08 |
| Leflore County Rw & Sd #5 | Leflore | 0.08 |
| Warner Utilities Authority | Warner | 0.08 |
| Verden, Town Of | Verden | 0.07 |
| Asher Utility Development Auth | Asher | 0.07 |
| Haileyville, City Of | Haileyville | 0.07 |
| Minco WWTF | Minco | 0.07 |
| Talihina Pwa | Talihina | 0.07 |
| North Enid, Town Of | North Enid | 0.07 |
| Tuttle, City Of | Tuttle | 0.06 |
| Ochelata Utilities Authority | Ochelata | 0.06 |
| Cameron Pwa | Cameron | 0.06 |
| Garber, City Of | Garber | 0.05 |
| Crowder Pwa Wwt | Crowder | 0.05 |
| Oologah Public Works Authority | Oologah | 0.05 |
| Dewar WWTF | Dewar | 0.05 |
| Valley Brook, Town Of | Valley Brook | 0.05 |
| Gans, Town Of | Gans | 0.05 |
| Porter WWTP | Porter | 0.04 |
| Kaw City WWTF | Kaw City | 0.04 |
| Okay Pwa | Okay | 0.04 |
| Stringtown Pwa | Stringtown | 0.04 |
| Pittsburg Co Rwd #20 -- Carlton Landing WWTF | Eufaula | 0.03 |
| Wright Public Works Authority | Wright City | 0.03 |
| Carney Public Utilities Auth | Carney | 0.03 |
| Seneca-Cayuga Tribe | Miami | 0.03 |
| Oakland Pwa | Oakland | 0.03 |
| Hartshorne, City Of | Hartshorne | 0.03 |
| Whitefield Mia | Whitefield | 0.02 |
| Candian Public Works Auth | Canadian | 0.02 |
| Yale City Of / Yale City Of | Yale | 0.02 |
| Dustin Public Works Authority | Dustin | 0.02 |
| Gore Wwt | Gore | 0.01 |
| Haskell Co. Rwd #2 | Kinta | 0.01 |
| Francis Wwt | Francis | 0.01 |
| Mannford Pwa - East Plant | Mannford | 0.01 |