We found 24 public water systems in Quay county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Tucumcari Water System | Tucumcari | 5,321 | 0 | 9 |
| Logan Water System | Logan | 2,491 | 0 | 10 |
| Logan Water System | Logan | 1,000 | 0 | 0 |
| Rad Water Users Coop | Tucumcari | 591 | 0 | 5 |
| Russells Endee Truck And Travel Ctr 2 | Glenrio | 475 | 0 | 0 |
| Liberty Mdwca | Tucumcari | 250 | 0 | 10 |
| Glenrio Highway Rest Area | Tucumcari | 250 | 0 | 4 |
| San Jon Water Supply | San Jon | 216 | 0 | 28 |
| North Dock Trailer Court | County of Quay | 125 | 0 | 0 |
| Hills Village Water System | Tucumcari | 116 | 0 | 0 |
| House School Water System | County of Quay | 103 | 0 | 0 |
| Beacon Bingo Water System | County of Quay | 75 | 0 | 0 |
| House Water System | House | 65 | 0 | 0 |
| Nara Visa Mdwca | Nara Visa | 58 | 0 | 0 |
| Ute Lake St Pk-mcfarland Point | County of Quay | 30 | 0 | 0 |
| Phillips 66 Fuel Stop | County of Quay | 25 | 0 | 0 |
| Madelyn's Soup Emporium | County of Quay | 25 | 0 | 0 |
| Texas Longhorn #2 | County of Quay | 25 | 0 | 0 |
| Caprock Amphitheater | County of Quay | 25 | 0 | 0 |
| Ute Lake State Park | Logan | 25 | 0 | 0 |
| Ute Lake Motor Inn | County of Quay | 25 | 0 | 0 |
| House Community Center | County of Quay | 25 | 0 | 0 |
| Nara Visa Community Center | County of Quay | 20 | 0 | 0 |
| Stuckeys 112 | Tucumcari | 0 | 0 | 0 |