Top scoring Phase 1 candidates
| Spring | State | Cluster volume | KD | Score |
|---|---|---|---|---|
| Hot Springs National Park | Arkansas | 343200 | 3 | 148.44 |
| Glenwood Hot Springs | Colorado | 189150 | 0 | 144.24 |
| Mount Princeton Hot Springs | Colorado | 182270 | 1 | 143.9 |
| Murrieta Hot Springs | California | 149380 | 0 | 142.41 |
| Sol Duc Hot Springs | Washington | 67960 | 4 | 134.17 |
| Glen Ivy Hot Springs | California | 121570 | 0 | 132.62 |
| Sycamore Mineral Springs | California | 44400 | 3 | 131.88 |
| Two Bunch Palms | California | 36970 | 3 | 130.29 |
| Carson Hot Springs | Washington | 43020 | 0 | 130.19 |
| Cottonwood Hot Springs | Colorado | 36410 | 0 | 129.97 |
| Miracle Hot Springs | Idaho | 44570 | 0 | 129.88 |
| Pagosa Springs Hot Springs | Colorado | 34580 | 3 | 129.48 |
| Chena Hot Springs | Alaska | 45060 | 0 | 129.24 |
| Crystal Crane Hot Springs | Oregon | 36230 | 0 | 129.12 |
| Castle Hot Springs | Arizona | 36160 | 13 | 129.02 |
| Ouray Hot Springs | Colorado | 54750 | 2 | 128.47 |
| Orr Hot Springs | California | 29750 | 0 | 128.4 |
| Quinn's Hot Springs | Montana | 42580 | 0 | 128.16 |
| Riverbend Hot Springs | New Mexico | 36280 | 0 | 127.73 |
| Quapaw Baths | Arkansas | 44400 | 1 | 127.68 |