| Cove, City Of | Cove | 0.03 |
| Elaine, City Of | Elaine | 0.03 |
| Madison, City Of-WWTP | Madison | 0.03 |
| Fouke Wastewater Treatment Plt | Fouke | 0.03 |
| Sugarloaf Wastewater Treatment | Lead Hill | 0.03 |
| Waldo, City Of | Waldo | 0.03 |
| Tillar, City Of | Tillar | 0.03 |
| Mountainburg WWTP | Mountainburg | 0.03 |
| Lexa, City Of | Lexa | 0.03 |
| Huttig WWTP | Huttig | 0.03 |
| Imboden, City Of-WWTF | Imboden | 0.03 |
| Diamondhead Resort-Wwt | Diamondhead | 0.03 |
| Tri-City Utilities, Inc. | O'Kean | 0.03 |
| Faulkner County Public Facility Board - D/b/a Preston Community WW Utility | Conway | 0.03 |
| Menifee WWTP | Menifee | 0.03 |
| Pinewood Sewer Improvement District (sid) #1 | Pine Bluff | 0.03 |
| Calico Rock WWTP | Calico Rock | 0.03 |
| Calion WWTP | Calion | 0.03 |
| Portia Wastewater Treatment Plant | Portia | 0.03 |
| Cotton Plant, City Of | Cotton Plant | 0.02 |
| Western Lawrence Co Wwt Dist | Lynn | 0.02 |
| Pollard WWTP | Pollard | 0.02 |
| Mccrory, City Of | Mccrory | 0.02 |
| Norphlet WWTP | Norphlet | 0.02 |
| Widener, Town Of | Widener | 0.02 |
| Oak Manor Water Association | Eldorado | 0.02 |
| Norman, City Of | Norman | 0.02 |
| Coal Hill, City Of-WWTP | Coal Hill | 0.02 |
| Humphrey, City Of - WWTP | Humphrey | 0.02 |
| Horseshoe Bend - Paradise Acres STP | Horseshoe Bend | 0.02 |
| Bonanza, Town Of | Bonanza | 0.02 |
| Etowah WWTP | Etowah | 0.02 |
| Hackett, City Of - Hackett WWTF | Hackett | 0.02 |
| Sulphur Rock WWTP | Sulphur Rock | 0.02 |
| Thornton, City Of | Thornton | 0.02 |
| Cherry Valley, City Of - Cherry Valley Sewage Treatment Plant | Cherry Valley | 0.02 |
| Newark, City Of | Newark | 0.02 |
| Louann, City Of | Louann | 0.02 |
| Lafe WWTP | Lafe | 0.02 |
| Bradley, City Of-WWTP | Bradley | 0.01 |
| Sulphur Springs WWTP | Sulphur Springs | 0.01 |
| Felsenthal, City Of | Felsenthal | 0.01 |
| City Of Lepanto | Lepanto | 0.01 |
| Alpena Wastewater Treatment Facility | Alpena | 0.01 |
| Maynard WWTP | Maynard | 0.01 |
| Lochridge Estates WWTP | Little Rock | 0.01 |
| City Of Sedgwick - Arkansas | Sedgwick | 0.01 |
| Almyra WWTP | Almyra | 0.01 |
| Knobel WWTP | Knobel | 0.01 |
| Holly Grove, City Of | Holly Grove | 0.01 |
| Oxford Waterworks | Oxford | 0.0099 |
| Parkdale Wastewater Treatment Plant | Parkdale | 0.0091 |
| Success WWTP | Success | 0.0089 |
| Rockport, City Of - WWTF | Rockport | 0.008 |
| Nimmons WWTP | Nimmons | 0.0068 |
| Ulm WWTP | Ulm | 0.0066 |
| Edmondson, City Of | Edmondson | 0.0065 |
| Norfork, City Of - WW Treatment Plant | Norfork | 0.0065 |
| Emerson, City Of - Emerson Wwt | Emerson | 0.0063 |
| Carson Bridge Treatment Plant | Lonoke | 0.0061 |
| Wilmot, City Of | Wilmot | 0.0056 |
| Oppelo, City Of - Oppelo Municipal Sewage Treatment Plant | Oppelo | 0.0037 |
| Ravenden Wastewater Treatment Facility | Ravenden | 0.0035 |
| Rolling Hills Subdivision WWTP | Cabot | 0.0035 |
| Suburbia Sid #1 | Pine Bluff | 0.0035 |
| Heinke Road Property Owners Sewer Improvement District No. 34 | Mabelvale | 0.0032 |
| Ravenden Springs WWTP | Ravenden Springs | 0.0031 |
| Banks, City Of | Banks | 0.0028 |
| Havana WWTP | Havana | 0.0027 |
| Tinsman, Ar Wastewater Treatment Facility | Hampton | 0.0026 |
| Van Buren Municipal Utilities, City Of - Lee Creek Industrial Park Trtmnt Plant | Van Buren | 0.0025 |
| Keo, City Of | Keo | 0.0024 |
| Amagon, City Of | Amagon | 0.002 |
| Letona Sanitary Sewer | Letona | 0.0017 |
| Altus WWTP | Altus | 0.0016 |
| Cash WWTP | Cash | 0.0014 |
| Mitchellville, City Of | Mitchellville | 0.00093 |
| Russell Waterworks | Russell | 0.0006 |
| 145th Street Water And Sewer Improvement District No. 345 Of Pulaski County | Little Rock | — |
| Biscoe, City Of | Biscoe | — |
| Burdette WWTP | Burdette | — |
| Carthage WWTP | Carthage | — |
| City Of St. Charles Stf | Saint Charles | — |
| Clinton West WW Treatment Facility | Clinton | — |
| Colt WWTP | Colt | — |
| Diaz WWTP | Diaz | — |
| Egypt, City Of | Egypt | — |
| Fulton, City Of | Fulton | — |
| Gilmore, City Of | Gilmore | — |
| Grady, City Of-WWTP | Grady | — |
| Greenway WWTP | Greenway | — |
| Grubbs, City Of | Grubbs | — |
| H.A.C.T. Regional WW Treatment Dist | Humnoke | — |
| Haskell, City Of | Haskell | — |
| Horseshoe Lake Wwt Facility | Horseshoe Lake | — |
| Kingsland WWTP | Kingsland | — |
| Lake View, City Of | Lakeview | — |
| Marianna, City Of - Marianna Water & Sewer Commission - Pond A | Marianna | — |
| Marianna - North WWTP | Marianna | — |
| Marvell WWTP | Marvell | — |
| Mcneil, City Of - Wastewater Treatment Plant | Mcneil | — |
| Mineral Springs, City Of-WWTP | Mineral Springs | — |
| Monticello WWTP East Plant | Monticello | — |
| Montrose Waste Water Facilities | Montrose | — |
| Moro WWTP | Moro | — |
| Newport, City Of - Airport/industrial Park | Newport | — |
| Oil Trough, City Of | Oil Trough | — |
| Okolona, City Of - WWTP | Okolona | — |
| Parkin, City Of-WWTF | Parkin | — |
| Patterson WWTP | Patterson | — |
| Perrytown, City Of - WWTP | Perrytown | — |
| Portland, City Of WWTP | Portland | — |
| Prairie Grove WWTP | Prairie Grove | — |
| Reyno WWTP | Reyno | — |
| Saint Francis WWTP | St. Francis | — |
| Stamps, City Of-South WWTF | Stamps | — |
| Stone Dam Creek Wastewater Treatment Plant | Conway | — |
| Texarkana, City Of-North WWTP | Texarkana | — |
| Turrell, City Of | Turrell | — |
| Vanndale - Birdeye Water Association, Inc. | Vanndale | — |
| Wabbaseka, City Of | Wabbaseka | — |
| Watson, City Of - Watson WWTP | Watson | — |
| Wilmar, City Of | Wilmar | — |
| Wynne Water Utilities | Wynne | — |
