| ALLUVIUM |
| BLACKSANDS |
| BURLINGTON-KEOKUK FORMATION |
| BURRO CANYON FORMATION |
| CAPROCK AQUIFER |
| CASTLEMAN FORMATION |
| CATAHOULA SANDSTONE; AQUIFER 3A |
| CEDAR MOUNTAIN BASAL SANDSTONE MEMBER |
| CHICKASAWHAY LIMESTONE; AQUIFER 4 |
| CLIFF HOUSE FORMATION |
| COLLUVIUM |
| CONQUISTA CLAY - WHITSETT FORMATION |
| CRETACEOUS MENEFEE FORMATION |
| CRETACEOUS POINT LOOKOUT SANDSTONE |
| CULEBRA DOLOMITE MEMBER OF THE RUSTLER FORMATION |
| DAKOTA SANDSTONE |
| DECHELLEY MEMBER OF THE CUTLER FORMATION |
| DECORAH FORMATION |
| DEEP SURFICIAL AQUIFER |
| DETONATION CAVITY |
| DETONATION CHIMNEY |
| DEWEESVILLE SAND - WHITSETT FORMATION |
| DILWORTH SAND - WHITSETT FORMATION |
| DOLOMITE |
| EOLIAN DEPOSITS |
| FAULT - CRETACEOUS MENEFEE FORMATION |
| FLORIDAN |
| GLACIAL TILL |
| GRANITE |
| JURASSIC ENTRADA SANDSTONE FORMATION |
| JURASSIC MORRISON FORMATION |
| JURASSIC NAVAJO SANDSTONE |
| Kimmswick Limestone |
| LEAN CLAYS, SANDY CLAYS, OR GRAVELLY CLAYS |
| LOWER PORTION OF CRETACEOUS POINT LOOKOUT SANDSTONE |
| MANCOS SHALE |
| MID SURFICIAL AQUIFER |
| MIDDLE SANDSTONE UNIT |
| MINED TUNNEL/DRIFT TO DETONATION CAVITY |
| NO RECOVERY OF DATA FOR CLASSIFYING |
| PASCAGOULA/HATTIESBURG FORMATION; AQUIFER 1 |
| PASCAGOULA/HATTIESBURG FORMATION; AQUIFER 2A |
| PASCAGOULA/HATTIESBURG FORMATION; AQUIFER 2B |
| PASCAGOULA/HATTIESBURG FORMATION; LOCAL AQUIFER |
| PERCHED WATER |
| PLATTIN FORMATION |
| QUATERNARY |
| REACTIVE MEDIA - PERMEABLE REACTIVE BARRIER |
| SAN ANDRES-GLORIETA |
| SAND OR GRAVELLY SAND, POORLY GRADED |
| SANDSTONE |
| SEMICONFINED SANDSTONE |
| SHINARUMP MEMBER OF THE CHINLE FORMATION |
| SILTS, SANDY OR GRAVELLY SILTS, DIATOMACEOUS SOILS |
| SURFICIAL |
| TAILINGS |
| TERTIARY GRAVELS |
| TRES HERMANOS - B SANDSTONE |
| UNCONSOLIDATED MATERIALS |
| UNWEATHERED BURLINGTON-KEOKUK FORMATION |
| UPPER SPLIT ROCK |
| UPPER SURFICIAL AQUIFER |
| URANIUM MILL TAILINGS |
| VOLCANICS |
| VOLCANICS - DENSELY WELDED TUFF |
| VOLCANICS - TUFFACEOUS SEDIMENTS |
| WASATCH FORMATION - UNDIFFERENTIATED |
| WEATHERED BURLINGTON-KEOKUK FORMATION |
| Wind River Formation |
| All Other Values including NULL |