We found 21 public water systems that could serve the same population as El Malpais National Monument (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Grants Water System | Grants | 11,365 | 0 | 0 |
| Grants Domestic Water System | Grants | 8,700 | 0 | 15 |
| Acomita Rest Area | Grants | 2,501 | 0 | 12 |
| Kerr Mcgee Nuclear Corp. Mill | Grants | 1,500 | 0 | 0 |
| Kerr-mcgee/ambrosia Lake | Grants | 1,500 | 0 | 0 |
| Quivira Ambrosia Lake Mill | Grants | 500 | 0 | 0 |
| Anaconda Jackpile P-10 | Grants | 240 | 0 | 0 |
| El Segundo Site | Grants | 238 | 0 | 25 |
| Sky Way Travel Center | Grants | 220 | 0 | 0 |
| Golden Acres Mobile Home Park | Grants | 220 | 0 | 0 |
| Grants Cibola Sands Koa | Grants | 180 | 0 | 5 |
| Homestake Section 23 Mine | Grants | 150 | 0 | 0 |
| El Malpais Ranger Station (blm) | Grants | 150 | 0 | 7 |
| El Morro National Monument | Grants | 133 | 0 | 10 |
| Homestake Mining Co. (sect 25) | Grants | 129 | 0 | 0 |
| Sun Valley Mobile Home Park | Grants | 95 | 0 | 0 |
| Homestake Mining Co. (sect 13) | Grants | 76 | 0 | 0 |
| Anaconda Jackpile # 4 | Grants | 50 | 0 | 0 |
| Anaconda Jackpile #4 | Grants | 50 | 0 | 0 |
| Western Bar | Grants | 40 | 0 | 0 |
| Sandoval Trailer Park | Grants | 25 | 0 | 0 |