Wellhead Protection Area List
| PWS Name | NE ID | County | NRD | Map Published |
|---|---|---|---|---|
| Osmond, City Of | NE3113903 | Pierce | Lower Elkhorn | |
| Oshkosh, City Of | NE3106901 | Garden | North Platte | |
| Osceola, City Of | NE3114302 | Polk | Upper Big Blue | |
| Orleans, Village Of | NE3108306 | Harlan | Lower Republican | |
| Ord, City Of | NE3117501 | Valley | Lower Loup | |
| Orchard, Village Of | NE3100304 | Antelope | Upper Elkhorn | |
| Ong, Village Of | NE3103508 | Clay | Little Blue | |
| Oneill, City Of | NE3108904 | Holt | Upper Elkhorn | |
| Omaha Tribal Utilities Macy | NE3117304 | Thurston | Papio-Missouri River | |
| Ohiowa, Village Of | NE3105908 | Fillmore | Little Blue | |
| Ogallala, City Of | NE3110102 | Keith | Twin Platte | |
| Odell, Village Of | NE3106708 | Gage | Lower Big Blue | |
| Oconto, Village Of | NE3104107 | Custer | Central Platte | |
| Obert, Village Of | NE3102704 | |||
| Oakland, City Of | NE3102101 | Burt | Lower Elkhorn | |
| Oakdale, Village Of | NE3100302 | Antelope | Upper Elkhorn | |
| Northside Mobile Home Ranch | NE3115711 | Scotts Bluff | North Platte | |
| North Point Johnson Lake | NE3107301 | Dawson | Central Platte | |
| North Platte, City Of | NE3111106 | Lincoln | Twin Platte | |
| North Loup, Village Of | NE3117502 | Valley | Lower Loup |