June 17, 2026
Nitrates in Oklahoma Drinking Water 2026
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Nitrates in Oklahoma Drinking Water 2026
Nitrates contamination has been detected in drinking water systems across Oklahoma. High nitrate levels cause methemoglobinemia (blue baby syndrome) in infants. EPA MCL is 10 mg/L. Our analysis of Oklahoma water quality reports found Nitrates present in 558 cities and water systems statewide. If you live in one of these communities, a certified home filter can significantly reduce your exposure -- browse Nitrates filters at PureWaterGuys.
Cities in Oklahoma with Nitrates Detected
The following 558 water systems in Oklahoma reported Nitrates in their annual water quality reports. Click any city to read the full report.
| City / Water System | Water Quality Report |
|---|---|
| 9901 Ne Expressway Ok Water Quality Report 2026 | View Report |
| Achille Ok Water Quality Report 2026 | View Report |
| Ada Ok Water Quality Report 2026 | View Report |
| Adair Ok Water Quality Report 2026 | View Report |
| Adams Ok Water Quality Report 2026 | View Report |
| Afton Ok Water Quality Report 2026 | View Report |
| Agra Ok Water Quality Report 2026 | View Report |
| Albion Ok Water Quality Report 2026 | View Report |
| Alex Ok Water Quality Report 2026 | View Report |
| Aline Ok Water Quality Report 2026 | View Report |
| Allen Ok Water Quality Report 2026 | View Report |
| Altus Ok Water Quality Report 2026 | View Report |
| Alva Ok Water Quality Report 2026 | View Report |
| Amber Ok Water Quality Report 2026 | View Report |
| Ames Ok Water Quality Report 2026 | View Report |
| Anadarko Ok Water Quality Report 2026 | View Report |
| Antlers Ok Water Quality Report 2026 | View Report |
| Apache Ok Water Quality Report 2026 | View Report |
| Arapaho Ok Water Quality Report 2026 | View Report |
| Arcadia Ok Water Quality Report 2026 | View Report |
| Ardmore Ok Water Quality Report 2026 | View Report |
| Arkoma Ok Water Quality Report 2026 | View Report |
| Arnett Ok Water Quality Report 2026 | View Report |
| Asher Ok Water Quality Report 2026 | View Report |
| Atoka Ok Water Quality Report 2026 | View Report |
| Avant Ok Water Quality Report 2026 | View Report |
| Avard Ok Water Quality Report 2026 | View Report |
| Barnsdall Ok Water Quality Report 2026 | View Report |
| Bartlesville Ok Water Quality Report 2026 | View Report |
| Battiest Ok Water Quality Report 2026 | View Report |
| Beaver Ok Water Quality Report 2026 | View Report |
| Beggs Ok Water Quality Report 2026 | View Report |
| Bennington Ok Water Quality Report 2026 | View Report |
| Bernice Ok Water Quality Report 2026 | View Report |
| Bessie Ok Water Quality Report 2026 | View Report |
| Bethany Ok Water Quality Report 2026 | View Report |
| Big Cabin Ok Water Quality Report 2026 | View Report |
| Billings Ok Water Quality Report 2026 | View Report |
| Binger Ok Water Quality Report 2026 | View Report |
| Bird Island Ok Water Quality Report 2026 | View Report |
| Bison Ok Water Quality Report 2026 | View Report |
| Bixby Ok Water Quality Report 2026 | View Report |
| Blackwell Ok Water Quality Report 2026 | View Report |
| Blair Ok Water Quality Report 2026 | View Report |
| Blanchard Ok Water Quality Report 2026 | View Report |
| Blue Jacket Ok Water Quality Report 2026 | View Report |
| Boise City Ok Water Quality Report 2026 | View Report |
| Boise Ok Water Quality Report 2026 | View Report |
| Bokchito Ok Water Quality Report 2026 | View Report |
| Bokoshe Ok Water Quality Report 2026 | View Report |
| Boley Ok Water Quality Report 2026 | View Report |
| Boswell Ok Water Quality Report 2026 | View Report |
| Bowlegs Ok Water Quality Report 2026 | View Report |
| Boydville Ok Water Quality Report 2026 | View Report |
| Boynton Ok Water Quality Report 2026 | View Report |
| Bradley Ok Water Quality Report 2026 | View Report |
| Braggs Ok Water Quality Report 2026 | View Report |
| Braman Ok Water Quality Report 2026 | View Report |
| Bristow Ok Water Quality Report 2026 | View Report |
| Broken Arrow Ok Water Quality Report 2026 | View Report |
| Broken Bow Ok Water Quality Report 2026 | View Report |
| Bromide Ok Water Quality Report 2026 | View Report |
| Buffalo Ok Water Quality Report 2026 | View Report |
| Burbank Ok Water Quality Report 2026 | View Report |
| Burlington Ok Water Quality Report 2026 | View Report |
| Burneyville Ok Water Quality Report 2026 | View Report |
| Burns Flat Ok Water Quality Report 2026 | View Report |
| Butler Ok Water Quality Report 2026 | View Report |
| Byars Ok Water Quality Report 2026 | View Report |
| Byng Ok Water Quality Report 2026 | View Report |
| Byron Ok Water Quality Report 2026 | View Report |
| Cache Ok Water Quality Report 2026 | View Report |
| Caddo Ok Water Quality Report 2026 | View Report |
| Calera Ok Water Quality Report 2026 | View Report |
| Calumet Ok Water Quality Report 2026 | View Report |
| Calvin Ok Water Quality Report 2026 | View Report |
| Camargo Ok Water Quality Report 2026 | View Report |
| Canadian Ok Water Quality Report 2026 | View Report |
| Canton Ok Water Quality Report 2026 | View Report |
| Canute Ok Water Quality Report 2026 | View Report |
| Capron Ok Water Quality Report 2026 | View Report |
| Carlton Landing Ok Water Quality Report 2026 | View Report |
| Carmen Ok Water Quality Report 2026 | View Report |
| Carnegie Ok Water Quality Report 2026 | View Report |
| Carney Ok Water Quality Report 2026 | View Report |
| Carter Ok Water Quality Report 2026 | View Report |
| Cartwright Ok Water Quality Report 2026 | View Report |
| Cashion Ok Water Quality Report 2026 | View Report |
| Catoosa Ok Water Quality Report 2026 | View Report |
| Cedaredge Ok Water Quality Report 2026 | View Report |
| Cement Ok Water Quality Report 2026 | View Report |
| Chandler Ok Water Quality Report 2026 | View Report |
| Chattanooga Ok Water Quality Report 2026 | View Report |
| Checotah Ok Water Quality Report 2026 | View Report |
| Chelsea Ok Water Quality Report 2026 | View Report |
| Cherokee Ok Water Quality Report 2026 | View Report |
| Cheyenne Ok Water Quality Report 2026 | View Report |
| Chickasha Ok Water Quality Report 2026 | View Report |
| Choctaw Ok Water Quality Report 2026 | View Report |
| Chouteau Ok Water Quality Report 2026 | View Report |
| Claremore Ok Water Quality Report 2026 | View Report |
| Clarita Ok Water Quality Report 2026 | View Report |
| Clayton Ok Water Quality Report 2026 | View Report |
| Clebit Ok Water Quality Report 2026 | View Report |
| Cleo Springs Ok Water Quality Report 2026 | View Report |
| Cleveland Ok Water Quality Report 2026 | View Report |
| Clinton Ok Water Quality Report 2026 | View Report |
| Coalgate Ok Water Quality Report 2026 | View Report |
| Coffeyville Ok Water Quality Report 2026 | View Report |
| Colbert Ok Water Quality Report 2026 | View Report |
| Colcord Ok Water Quality Report 2026 | View Report |
| Coleman Ok Water Quality Report 2026 | View Report |
| Collinsville Ok Water Quality Report 2026 | View Report |
| Colony Ok Water Quality Report 2026 | View Report |
| Colorado Springs Ok Water Quality Report 2026 | View Report |
| Comanche Ok Water Quality Report 2026 | View Report |
| Commerce Ok Water Quality Report 2026 | View Report |
| Concho Ok Water Quality Report 2026 | View Report |
| Cookson Ok Water Quality Report 2026 | View Report |
| Copan Ok Water Quality Report 2026 | View Report |
| Cordell Ok Water Quality Report 2026 | View Report |
| Corn Ok Water Quality Report 2026 | View Report |
| Council Hill Ok Water Quality Report 2026 | View Report |
| Covington Ok Water Quality Report 2026 | View Report |
| Coweta Ok Water Quality Report 2026 | View Report |
| Coyle Ok Water Quality Report 2026 | View Report |
| Crescent Ok Water Quality Report 2026 | View Report |
| Cromwell Ok Water Quality Report 2026 | View Report |
| Crowder Ok Water Quality Report 2026 | View Report |
| Custer City Ok Water Quality Report 2026 | View Report |
| Cyril Ok Water Quality Report 2026 | View Report |
| Dallas Ok Water Quality Report 2026 | View Report |
| Davenport Ok Water Quality Report 2026 | View Report |
| Davidson Ok Water Quality Report 2026 | View Report |
| Davis Ok Water Quality Report 2026 | View Report |
| Deer Creek Ok Water Quality Report 2026 | View Report |
| Del City Ok Water Quality Report 2026 | View Report |
| Delaware Ok Water Quality Report 2026 | View Report |
| Denver Ok Water Quality Report 2026 | View Report |
| Depew Ok Water Quality Report 2026 | View Report |
| Devol Ok Water Quality Report 2026 | View Report |
| Dewar Ok Water Quality Report 2026 | View Report |
| Dewey Ok Water Quality Report 2026 | View Report |
| Dibble Ok Water Quality Report 2026 | View Report |
| Dill City Ok Water Quality Report 2026 | View Report |
| Disney Ok Water Quality Report 2026 | View Report |
| Dougherty Ok Water Quality Report 2026 | View Report |
| Douglas Ok Water Quality Report 2026 | View Report |
| Dover Ok Water Quality Report 2026 | View Report |
| Drummond Ok Water Quality Report 2026 | View Report |
| Drumright Ok Water Quality Report 2026 | View Report |
| Drumwright Ok Water Quality Report 2026 | View Report |
| Duke Ok Water Quality Report 2026 | View Report |
| Dummy Ok Water Quality Report 2026 | View Report |
| Duncan Ok Water Quality Report 2026 | View Report |
| Durant Ok Water Quality Report 2026 | View Report |
| Dustin Ok Water Quality Report 2026 | View Report |
| Eakly Ok Water Quality Report 2026 | View Report |
| Earlsboro Ok Water Quality Report 2026 | View Report |
| Edmond Ok Water Quality Report 2026 | View Report |
| Edmond Okla Ok Water Quality Report 2026 | View Report |
| El Reno Ok Water Quality Report 2026 | View Report |
| Eldorado Ok Water Quality Report 2026 | View Report |
| Elk City Ok Water Quality Report 2026 | View Report |
| Elkhart Ok Water Quality Report 2026 | View Report |
| Elmore City Ok Water Quality Report 2026 | View Report |
| Elmore Ok Water Quality Report 2026 | View Report |
| Englewood Ok Water Quality Report 2026 | View Report |
| Enid Ok Water Quality Report 2026 | View Report |
| Erick Ok Water Quality Report 2026 | View Report |
| Eucha Ok Water Quality Report 2026 | View Report |
| Eufaula Ok Water Quality Report 2026 | View Report |
| Fairfax Ok Water Quality Report 2026 | View Report |
| Fairland Ok Water Quality Report 2026 | View Report |
| Fairview Ok Water Quality Report 2026 | View Report |
| Fargo Ok Water Quality Report 2026 | View Report |
| Faxon Ok Water Quality Report 2026 | View Report |
| Fittstown Ok Water Quality Report 2026 | View Report |
| Fletcher Ok Water Quality Report 2026 | View Report |
| Foraker Ok Water Quality Report 2026 | View Report |
| Forgan Ok Water Quality Report 2026 | View Report |
| Fort Cobb Ok Water Quality Report 2026 | View Report |
| Fort Gibson Ok Water Quality Report 2026 | View Report |
| Fort Still Ok Water Quality Report 2026 | View Report |
| Fort Supply Ok Water Quality Report 2026 | View Report |
| Fort Towson Ok Water Quality Report 2026 | View Report |
| Foss Ok Water Quality Report 2026 | View Report |
| Fox Ok Water Quality Report 2026 | View Report |
| Francis Ok Water Quality Report 2026 | View Report |
| Frederick Ok Water Quality Report 2026 | View Report |
| Freedom Ok Water Quality Report 2026 | View Report |
| Frisco Ok Water Quality Report 2026 | View Report |
| Ft Gibson Ok Water Quality Report 2026 | View Report |
| Ft Supply Ok Water Quality Report 2026 | View Report |
| Ft Towson Ok Water Quality Report 2026 | View Report |
| Gage Ok Water Quality Report 2026 | View Report |
| Gans Ok Water Quality Report 2026 | View Report |
| Garber Ok Water Quality Report 2026 | View Report |
| Garvin Ok Water Quality Report 2026 | View Report |
| Gate Ok Water Quality Report 2026 | View Report |
| Geary Ok Water Quality Report 2026 | View Report |
| Geronimo Ok Water Quality Report 2026 | View Report |
| Glencoe Ok Water Quality Report 2026 | View Report |
| Glenpool Ok Water Quality Report 2026 | View Report |
| Goldsby Ok Water Quality Report 2026 | View Report |
| Goltry Ok Water Quality Report 2026 | View Report |
| Gore Ok Water Quality Report 2026 | View Report |
| Gotebo Ok Water Quality Report 2026 | View Report |
| Gould Ok Water Quality Report 2026 | View Report |
| Gracemont Ok Water Quality Report 2026 | View Report |
| Grand Lake Towne Ok Water Quality Report 2026 | View Report |
| Grandfield Ok Water Quality Report 2026 | View Report |
| Granite Ok Water Quality Report 2026 | View Report |
| Grant Ok Water Quality Report 2026 | View Report |
| Greenfield Ok Water Quality Report 2026 | View Report |
| Grove Ok Water Quality Report 2026 | View Report |
| Guthrie Ok Water Quality Report 2026 | View Report |
| Guymon Ok Water Quality Report 2026 | View Report |
| Haileyville Ok Water Quality Report 2026 | View Report |
| Hallett Ok Water Quality Report 2026 | View Report |
| Hammon Ok Water Quality Report 2026 | View Report |
| Hanna Ok Water Quality Report 2026 | View Report |
| Hardesty Ok Water Quality Report 2026 | View Report |
| Harrah Ok Water Quality Report 2026 | View Report |
| Hartshorne Ok Water Quality Report 2026 | View Report |
| Haskell Ok Water Quality Report 2026 | View Report |
| Hastings Ok Water Quality Report 2026 | View Report |
| Haworth Ok Water Quality Report 2026 | View Report |
| Headrick Ok Water Quality Report 2026 | View Report |
| Healdton Ok Water Quality Report 2026 | View Report |
| Heavener Ok Water Quality Report 2026 | View Report |
| Helena Ok Water Quality Report 2026 | View Report |
| Hendrix Ok Water Quality Report 2026 | View Report |
| Hennepin Ok Water Quality Report 2026 | View Report |
| Hennessey Ok Water Quality Report 2026 | View Report |
| Henryetta Ok Water Quality Report 2026 | View Report |
| Hillsdale Ok Water Quality Report 2026 | View Report |
| Hinton Ok Water Quality Report 2026 | View Report |
| Hitchcock Ok Water Quality Report 2026 | View Report |
| Hitchita Ok Water Quality Report 2026 | View Report |
| Hobart Ok Water Quality Report 2026 | View Report |
| Hodgen Ok Water Quality Report 2026 | View Report |
| Holdenville Ok Water Quality Report 2026 | View Report |
| Hollis Ok Water Quality Report 2026 | View Report |
| Hollister Ok Water Quality Report 2026 | View Report |
| Hominy Ok Water Quality Report 2026 | View Report |
| Hooker Ok Water Quality Report 2026 | View Report |
| Hot Springs Ok Water Quality Report 2026 | View Report |
| Houston Ok Water Quality Report 2026 | View Report |
| Howe Ok Water Quality Report 2026 | View Report |
| Hugo Ok Water Quality Report 2026 | View Report |
| Hulbert Ok Water Quality Report 2026 | View Report |
| Hulbert Ok Water Quality Report 2027 | View Report |
| Hydro Ok Water Quality Report 2026 | View Report |
| Idabel Ok Water Quality Report 2026 | View Report |
| Indiahoma Ok Water Quality Report 2026 | View Report |
| Indianola Ok Water Quality Report 2026 | View Report |
| Inola Ok Water Quality Report 2026 | View Report |
| Jay Ok Water Quality Report 2026 | View Report |
| Jenks Ok Water Quality Report 2026 | View Report |
| Jennings Ok Water Quality Report 2026 | View Report |
| Jet Ok Water Quality Report 2026 | View Report |
| Jones Ok Water Quality Report 2026 | View Report |
| Jose Ok Water Quality Report 2026 | View Report |
| Kansas Ok Water Quality Report 2026 | View Report |
| Kaw City Ok Water Quality Report 2026 | View Report |
| Kelleyville Ok Water Quality Report 2026 | View Report |
| Kellyville Ok Water Quality Report 2026 | View Report |
| Kendrick Ok Water Quality Report 2026 | View Report |
| Kenefic Ok Water Quality Report 2026 | View Report |
| Keota Ok Water Quality Report 2026 | View Report |
| Ketchum Ok Water Quality Report 2026 | View Report |
| Keyes Ok Water Quality Report 2026 | View Report |
| Kiefer Ok Water Quality Report 2026 | View Report |
| Kingfisher Ok Water Quality Report 2026 | View Report |
| Kingston Ok Water Quality Report 2026 | View Report |
| Kiowa Ok Water Quality Report 2026 | View Report |
| Knowles Ok Water Quality Report 2026 | View Report |
| Konawa Ok Water Quality Report 2026 | View Report |
| Krebs Ok Water Quality Report 2026 | View Report |
| Kremlin Ok Water Quality Report 2026 | View Report |
| Ladera Ranch Ok Water Quality Report 2026 | View Report |
| Lahoma Ok Water Quality Report 2026 | View Report |
| Lamont Ok Water Quality Report 2026 | View Report |
| Langley Ok Water Quality Report 2026 | View Report |
| Langston Ok Water Quality Report 2026 | View Report |
| Laport Ok Water Quality Report 2026 | View Report |
| Las Vegas Ok Water Quality Report 2026 | View Report |
| Laverne Ok Water Quality Report 2026 | View Report |
| Lawton Ok Water Quality Report 2026 | View Report |
| Leedey Ok Water Quality Report 2026 | View Report |
| Lehigh Ok Water Quality Report 2026 | View Report |
| Lenapah Ok Water Quality Report 2026 | View Report |
| Leon Ok Water Quality Report 2026 | View Report |
| Lexington Ok Water Quality Report 2026 | View Report |
| Liberal Ok Water Quality Report 2026 | View Report |
| Lincoln Ok Water Quality Report 2026 | View Report |
| Lindsay Ok Water Quality Report 2026 | View Report |
| Lindsey Ok Water Quality Report 2026 | View Report |
| Loco Ok Water Quality Report 2026 | View Report |
| Locust Grove Ok Water Quality Report 2026 | View Report |
| Lone Grove Ok Water Quality Report 2026 | View Report |
| Lone Wolf Ok Water Quality Report 2026 | View Report |
| Longdale Ok Water Quality Report 2026 | View Report |
| Longtown Ok Water Quality Report 2026 | View Report |
| Longwood Ok Water Quality Report 2026 | View Report |
| Lookeba Ok Water Quality Report 2026 | View Report |
| Loyal Ok Water Quality Report 2026 | View Report |
| Luther Ok Water Quality Report 2026 | View Report |
| Madill Ok Water Quality Report 2026 | View Report |
| Manchester Ok Water Quality Report 2026 | View Report |
| Mangum Ok Water Quality Report 2026 | View Report |
| Manitou Ok Water Quality Report 2026 | View Report |
| Mannford Ok Water Quality Report 2026 | View Report |
| Mannsville Ok Water Quality Report 2026 | View Report |
| Marietta Ok Water Quality Report 2026 | View Report |
| Marina Del Rey Ok Water Quality Report 2026 | View Report |
| Marland Ok Water Quality Report 2026 | View Report |
| Marlow Ok Water Quality Report 2026 | View Report |
| Marshall Ok Water Quality Report 2026 | View Report |
| Martha Ok Water Quality Report 2026 | View Report |
| Maud Ok Water Quality Report 2026 | View Report |
| Maysville Ok Water Quality Report 2026 | View Report |
| Mcalester Ok Water Quality Report 2026 | View Report |
| Mccloud Ok Water Quality Report 2026 | View Report |
| Mccurtain Ok Water Quality Report 2026 | View Report |
| Mcloud Ok Water Quality Report 2026 | View Report |
| Mead Ok Water Quality Report 2026 | View Report |
| Medford Ok Water Quality Report 2026 | View Report |
| Medicine Park Ok Water Quality Report 2026 | View Report |
| Meeker Ok Water Quality Report 2026 | View Report |
| Meno Ok Water Quality Report 2026 | View Report |
| Meridian Ok Water Quality Report 2026 | View Report |
| Miami Ok Water Quality Report 2026 | View Report |
| Midwest City Ok Water Quality Report 2026 | View Report |
| Milburn Ok Water Quality Report 2026 | View Report |
| Mill Creek Ok Water Quality Report 2026 | View Report |
| Millerton Ok Water Quality Report 2026 | View Report |
| Minco Ok Water Quality Report 2026 | View Report |
| Monroe Ok Water Quality Report 2026 | View Report |
| Montvale Ok Water Quality Report 2026 | View Report |
| Moore Ok Water Quality Report 2026 | View Report |
| Mooreland Ok Water Quality Report 2026 | View Report |
| Morris Ok Water Quality Report 2026 | View Report |
| Morrison Ok Water Quality Report 2026 | View Report |
| Mounds Ok Water Quality Report 2026 | View Report |
| Mountain Park Ok Water Quality Report 2026 | View Report |
| Mountain View Ok Water Quality Report 2026 | View Report |
| Muldrow Ok Water Quality Report 2026 | View Report |
| Mulhall Ok Water Quality Report 2026 | View Report |
| Muskogee Ok Water Quality Report 2026 | View Report |
| Mustang Ok Water Quality Report 2026 | View Report |
| Mutual Ok Water Quality Report 2026 | View Report |
| Nash Ok Water Quality Report 2026 | View Report |
| Nashoba Ok Water Quality Report 2026 | View Report |
| New Port Richey Ok Water Quality Report 2026 | View Report |
| New York City Ok Water Quality Report 2026 | View Report |
| Newalla Ok Water Quality Report 2026 | View Report |
| Newcastle Ok Water Quality Report 2026 | View Report |
| Newkirk Ok Water Quality Report 2026 | View Report |
| Nichols Hills Ok Water Quality Report 2026 | View Report |
| Nicoma Park Ok Water Quality Report 2026 | View Report |
| Ninnekah Ok Water Quality Report 2026 | View Report |
| Noble Ok Water Quality Report 2026 | View Report |
| Norman Ok Water Quality Report 2026 | View Report |
| North Enid Ok Water Quality Report 2026 | View Report |
| North Miami Ok Water Quality Report 2026 | View Report |
| Nowata Ok Water Quality Report 2026 | View Report |
| Oakdale Ok Water Quality Report 2026 | View Report |
| Oakhurst Ok Water Quality Report 2026 | View Report |
| Oaks Ok Water Quality Report 2026 | View Report |
| Oakwood Ok Water Quality Report 2026 | View Report |
| Ochelata Ok Water Quality Report 2026 | View Report |
| Oilton Ok Water Quality Report 2026 | View Report |
| Okarche Ok Water Quality Report 2026 | View Report |
| Okay Ok Water Quality Report 2026 | View Report |
| Okeene Ok Water Quality Report 2026 | View Report |
| Okla City Ok Water Quality Report 2026 | View Report |
| Oklahoma City Ok Water Quality Report 2026 | View Report |
| Okmulgee Ok Water Quality Report 2026 | View Report |
| Oktaha Ok Water Quality Report 2026 | View Report |
| Olustee Ok Water Quality Report 2026 | View Report |
| Oologah Ok Water Quality Report 2026 | View Report |
| Optima Ok Water Quality Report 2026 | View Report |
| Orlando Ok Water Quality Report 2026 | View Report |
| Osage Ok Water Quality Report 2026 | View Report |
| Owasso Ok Water Quality Report 2026 | View Report |
| Paden Ok Water Quality Report 2026 | View Report |
| Panama Ok Water Quality Report 2026 | View Report |
| Paoli Ok Water Quality Report 2026 | View Report |
| Park Hill Ok Water Quality Report 2026 | View Report |
| Parkhill Ok Water Quality Report 2026 | View Report |
| Pauls Valley Ok Water Quality Report 2026 | View Report |
| Pawhuska Ok Water Quality Report 2026 | View Report |
| Pawnee Ok Water Quality Report 2026 | View Report |
| Perkins Ok Water Quality Report 2026 | View Report |
| Perry Ok Water Quality Report 2026 | View Report |
| Piedmont Ok Water Quality Report 2026 | View Report |
| Pittsburg Ok Water Quality Report 2026 | View Report |
| Pocasset Ok Water Quality Report 2026 | View Report |
| Pocola Ok Water Quality Report 2026 | View Report |
| Ponca City Ok Water Quality Report 2026 | View Report |
| Porter Ok Water Quality Report 2026 | View Report |
| Porum Ok Water Quality Report 2026 | View Report |
| Poteau Ok Water Quality Report 2026 | View Report |
| Prague Ok Water Quality Report 2026 | View Report |
| Preston Ok Water Quality Report 2026 | View Report |
| Prue Ok Water Quality Report 2026 | View Report |
| Pryor Ok Water Quality Report 2026 | View Report |
| Purcell Ok Water Quality Report 2026 | View Report |
| Quapaw Ok Water Quality Report 2026 | View Report |
| Quinton Ok Water Quality Report 2026 | View Report |
| Ralston Ok Water Quality Report 2026 | View Report |
| Ramona Ok Water Quality Report 2026 | View Report |
| Randlett Ok Water Quality Report 2026 | View Report |
| Ratliff City Ok Water Quality Report 2026 | View Report |
| Ravia Ok Water Quality Report 2026 | View Report |
| Red Bird Ok Water Quality Report 2026 | View Report |
| Red Oak Ok Water Quality Report 2026 | View Report |
| Red Rock Ok Water Quality Report 2026 | View Report |
| Rexburg Ok Water Quality Report 2026 | View Report |
| Reydon Ok Water Quality Report 2026 | View Report |
| Ringling Ok Water Quality Report 2026 | View Report |
| Ringwood Ok Water Quality Report 2026 | View Report |
| Ripley Ok Water Quality Report 2026 | View Report |
| Riverside Ok Water Quality Report 2026 | View Report |
| Rocky Ok Water Quality Report 2026 | View Report |
| Roff Ok Water Quality Report 2026 | View Report |
| Roland Ok Water Quality Report 2026 | View Report |
| Roosevelt Ok Water Quality Report 2026 | View Report |
| Rosedale Ok Water Quality Report 2026 | View Report |
| Rt 3 Box 104 Ok Water Quality Report 2026 | View Report |
| Rt 4 Box 105 Ok Water Quality Report 2026 | View Report |
| Rush Springs Ok Water Quality Report 2026 | View Report |
| Ryan Ok Water Quality Report 2026 | View Report |
| Salina Ok Water Quality Report 2026 | View Report |
| Salina Ok Water Quality Report 2027 | View Report |
| Sallisaw Ok Water Quality Report 2026 | View Report |
| San Jose Ok Water Quality Report 2026 | View Report |
| Sand Springs Ok Water Quality Report 2026 | View Report |
| Sapulpa Ok Water Quality Report 2026 | View Report |
| Sasakwa Ok Water Quality Report 2026 | View Report |
| Savanna Ok Water Quality Report 2026 | View Report |
| Sawyer Ok Water Quality Report 2026 | View Report |
| Sayre Ok Water Quality Report 2026 | View Report |
| Schulter Ok Water Quality Report 2026 | View Report |
| Seiling Ok Water Quality Report 2026 | View Report |
| Seminole Ok Water Quality Report 2026 | View Report |
| Sentinel Ok Water Quality Report 2026 | View Report |
| Shamrock Ok Water Quality Report 2026 | View Report |
| Sharon Ok Water Quality Report 2026 | View Report |
| Shattuck Ok Water Quality Report 2026 | View Report |
| Shawnee Ok Water Quality Report 2026 | View Report |
| Shidler Ok Water Quality Report 2026 | View Report |
| Siloam Springs Ok Water Quality Report 2026 | View Report |
| Simi Valley Ok Water Quality Report 2026 | View Report |
| Skiatook Ok Water Quality Report 2026 | View Report |
| Skiatook Ok Water Quality Report 2027 | View Report |
| Slick Ok Water Quality Report 2026 | View Report |
| Smithville Ok Water Quality Report 2026 | View Report |
| Snyder Ok Water Quality Report 2026 | View Report |
| Soper Ok Water Quality Report 2026 | View Report |
| South Coffeyville Ok Water Quality Report 2026 | View Report |
| Sparks Ok Water Quality Report 2026 | View Report |
| Spavinaw Ok Water Quality Report 2026 | View Report |
| Spencer Ok Water Quality Report 2026 | View Report |
| Sperry Ok Water Quality Report 2026 | View Report |
| Spiro Ok Water Quality Report 2026 | View Report |
| St Louis Ok Water Quality Report 2026 | View Report |
| Sterling Ok Water Quality Report 2026 | View Report |
| Stigler Ok Water Quality Report 2026 | View Report |
| Stillwater Ok Water Quality Report 2026 | View Report |
| Stilwell Ok Water Quality Report 2026 | View Report |
| Stonewall Ok Water Quality Report 2026 | View Report |
| Strang Ok Water Quality Report 2026 | View Report |
| Stratford Ok Water Quality Report 2026 | View Report |
| Stringtown Ok Water Quality Report 2026 | View Report |
| Stroud Ok Water Quality Report 2026 | View Report |
| Stuart Ok Water Quality Report 2026 | View Report |
| Sulphur Ok Water Quality Report 2026 | View Report |
| Sunland Ok Water Quality Report 2026 | View Report |
| Swink Ok Water Quality Report 2026 | View Report |
| Taft Ok Water Quality Report 2026 | View Report |
| Tahlequah Ok Water Quality Report 2026 | View Report |
| Talala Ok Water Quality Report 2026 | View Report |
| Talequah Ok Water Quality Report 2026 | View Report |
| Talihina Ok Water Quality Report 2026 | View Report |
| Taloga Ok Water Quality Report 2026 | View Report |
| Tecumseh Ok Water Quality Report 2026 | View Report |
| Temple Ok Water Quality Report 2026 | View Report |
| Terlton Ok Water Quality Report 2026 | View Report |
| Terral Ok Water Quality Report 2026 | View Report |
| Texhoma Ok Water Quality Report 2026 | View Report |
| Thackerville Ok Water Quality Report 2026 | View Report |
| Thomas Ok Water Quality Report 2026 | View Report |
| Tinker Afb Ok Water Quality Report 2026 | View Report |
| Tipton Ok Water Quality Report 2026 | View Report |
| Tishomingo Ok Water Quality Report 2026 | View Report |
| Tonkawa Ok Water Quality Report 2026 | View Report |
| Tracy Ok Water Quality Report 2026 | View Report |
| Trego Ok Water Quality Report 2026 | View Report |
| Tryon Ok Water Quality Report 2026 | View Report |
| Tullahassee Ok Water Quality Report 2026 | View Report |
| Tulsa Ok Water Quality Report 2026 | View Report |
| Tulsa Ok Water Quality Report 2027 | View Report |
| Tupelo Ok Water Quality Report 2026 | View Report |
| Turpin Ok Water Quality Report 2026 | View Report |
| Tustin Ok Water Quality Report 2026 | View Report |
| Tuttle Ok Water Quality Report 2026 | View Report |
| Twin Oaks Ok Water Quality Report 2026 | View Report |
| Tyrone Ok Water Quality Report 2026 | View Report |
| Union City Ok Water Quality Report 2026 | View Report |
| Valliant Ok Water Quality Report 2026 | View Report |
| Velma Ok Water Quality Report 2026 | View Report |
| Verden Ok Water Quality Report 2026 | View Report |
| Vian Ok Water Quality Report 2026 | View Report |
| Vici Ok Water Quality Report 2026 | View Report |
| Vinita Ok Water Quality Report 2026 | View Report |
| Wagoner Ok Water Quality Report 2026 | View Report |
| Wagoner Ok Water Quality Report 2027 | View Report |
| Wainwright Ok Water Quality Report 2026 | View Report |
| Wakita Ok Water Quality Report 2026 | View Report |
| Walters Ok Water Quality Report 2026 | View Report |
| Wanette Ok Water Quality Report 2026 | View Report |
| Wapanucka Ok Water Quality Report 2026 | View Report |
| Wardville Ok Water Quality Report 2026 | View Report |
| Warner Ok Water Quality Report 2026 | View Report |
| Washington Ok Water Quality Report 2026 | View Report |
| Watonga Ok Water Quality Report 2026 | View Report |
| Watts Ok Water Quality Report 2026 | View Report |
| Watts Ok Water Quality Report 2027 | View Report |
| Waukomis Ok Water Quality Report 2026 | View Report |
| Waurika Ok Water Quality Report 2026 | View Report |
| Wayne Ok Water Quality Report 2026 | View Report |
| Waynoka Ok Water Quality Report 2026 | View Report |
| Weatherford Ok Water Quality Report 2026 | View Report |
| Webb City Ok Water Quality Report 2026 | View Report |
| Webbers Falls Ok Water Quality Report 2026 | View Report |
| Welch Ok Water Quality Report 2026 | View Report |
| Weleetka Ok Water Quality Report 2026 | View Report |
| Welling Ok Water Quality Report 2026 | View Report |
| Wellston Ok Water Quality Report 2026 | View Report |
| Westville Ok Water Quality Report 2026 | View Report |
| Wetumka Ok Water Quality Report 2026 | View Report |
| Wewoka Ok Water Quality Report 2026 | View Report |
| Wheatland Ok Water Quality Report 2026 | View Report |
| Whitesboro Ok Water Quality Report 2026 | View Report |
| Wilburton Ok Water Quality Report 2026 | View Report |
| Willow Ok Water Quality Report 2026 | View Report |
| Wilmette Ok Water Quality Report 2026 | View Report |
| Wilson Ok Water Quality Report 2026 | View Report |
| Wister Ok Water Quality Report 2026 | View Report |
| Woodward Ok Water Quality Report 2026 | View Report |
| Wright City Ok Water Quality Report 2026 | View Report |
| Wyandotte Ok Water Quality Report 2026 | View Report |
| Wynnewood Ok Water Quality Report 2026 | View Report |
| Wynona Ok Water Quality Report 2026 | View Report |
| Yale Ok Water Quality Report 2026 | View Report |
What Does This Mean For You?
Detecting Nitrates in your water supply does not necessarily mean immediate danger, but long-term exposure -- even at low levels -- carries measurable health risk. Reverse osmosis is the most effective method for removing nitrates from drinking water.
Our recommendation: View Nitrates filters certified for Oklahoma water conditions or take our free Water Finder Quiz to get a personalized recommendation.
Filter Nitrates From Your Oklahoma Tap Water
PureWaterGuys carries NSF-certified filters proven to reduce Nitrates and other contaminants found in Oklahoma water.
Shop Nitrates Filters Take the Water QuizFrequently Asked Questions
What is Nitrates?
High nitrate levels cause methemoglobinemia (blue baby syndrome) in infants. EPA MCL is 10 mg/L.
Is Oklahoma tap water safe to drink?
Water quality varies by city. Of the Oklahoma systems we analyzed, 558 detected Nitrates. Most levels are below EPA action thresholds, but long-term low-level exposure carries health risk. Check your city's report above or use a certified home filter as a precaution.
What filter removes Nitrates from tap water?
Reverse osmosis is the most effective method for removing nitrates from drinking water. See our Nitrates filter options.
Data sourced from EPA-mandated annual water quality reports (Consumer Confidence Reports). Last updated: 2026. Not all systems are required to test for every contaminant.