| UNKNOWN |
| ALLUVIUM |
| ALLUVIUM / TRES HERMANOS - C2 SANDSTONE |
| ALLUVIUM / UNDIFFERENTIATED BEDROCK |
| DAKOTA SANDSTONE |
| FILL MATERIAL |
| MANCOS SHALE |
| NO RECOVERY OF DATA FOR CLASSIFYING |
| TRES HERMANOS - B SANDSTONE |
| TRES HERMANOS - C1 SANDSTONE |
| TRES HERMANOS - C2 SANDSTONE |
| TRES HERMANOS-A SANDSTONE |
| UNDIFFERENTIATED BEDROCK |
| URANIUM MILL TAILINGS |
| WESTWATER CANYON MEMBER |
| DEEP SURFICIAL AQUIFER |
| UNCONSOLIDATED MATERIALS |
| SURFICIAL |
| GLACIAL TILL |
| UPPER SURFICIAL AQUIFER |
| VOLCANICS - TUFFACEOUS SEDIMENTS |
| WEATHERED BURLINGTON-KEOKUK FORMATION / BURLINGTON-KEOKUK FORMATION |
| COLLUVIUM |
| SANDSTONE |
| QUATERNARY |
| SAN ANDRES-GLORIETA |
| PLATTIN FORMATION |
| Miscellaneous |
| Area of Concern Monitoring |
| Background |
| Best Management Practice |
| Boundary Monitoring |
| Dam Safety Monitoring/Water Level Only |
| Decision Document Monitoring |
| Disposal Cell Monitoring |
| Domestic Well |
| Evaluation Well |
| Former Waste Storage Area Monitoring |
| Investigative and Performance Monitoring |
| Monitor the unimpacted water quality at upgradient locations |
| Natural Attenuation Monitoring |
| Near Property Boundary Well |
| On-Site Disposal Facility Monitoring |
| On-Site Disposal Facility Monitoring and Property/Plume Boundary for FRL Exceedances |
| Operable Unit 1 Monitoring |
| Performance Monitoring |
| Plume Boundary Monitor Well |
| Plume Monitor Well |
| Point of Compliance |
| Point of Exposure |
| Property/Plume Boundary for FRL Exceedances |
| Property/Plume Boundary for FRL Exceedances and Property/Plume Boundary for PRRS |
| RCRA/Landfill Monitoring |
| Sentinel Well/Pond Monitoring |
| Sentinel Wells |
| South Field Monitoring |
| Surface Water Sample Location |
| Trend Well |
| Uranium Only |
| Water Level only Location |
| UNKNOWN |
| ALLUVIUM |
| ALLUVIUM / TRES HERMANOS - C2 SANDSTONE |
| ALLUVIUM / UNDIFFERENTIATED BEDROCK |
| DAKOTA SANDSTONE |
| FILL MATERIAL |
| MANCOS SHALE |
| NO RECOVERY OF DATA FOR CLASSIFYING |
| TRES HERMANOS - B SANDSTONE |
| TRES HERMANOS - C1 SANDSTONE |
| TRES HERMANOS - C2 SANDSTONE |
| TRES HERMANOS-A SANDSTONE |
| UNDIFFERENTIATED BEDROCK |
| URANIUM MILL TAILINGS |
| WESTWATER CANYON MEMBER |
| DEEP SURFICIAL AQUIFER |
| UNCONSOLIDATED MATERIALS |
| SURFICIAL |
| GLACIAL TILL |
| UPPER SURFICIAL AQUIFER |
| WASATCH - LOWER SANDSTONE |
| WEATHERED BURLINGTON-KEOKUK FORMATION |
| CODY SHALE |
| SANDSTONE |
| QUATERNARY |
| SAN ANDRES-GLORIETA |
| PLATTIN FORMATION |
| Miscellaneous |
| Area of Concern Monitoring |
| Integrated Environmental Monitoring Program Surface Water Sample Location |
| Integrated Environmental Monitoring Program/NPDES |
| Investigative Monitoring |
| Investigative and Performance Monitoring |
| National Pollution Discharge Elimination System Permit Location |
| Natural Attenuation Monitoring |
| Performance Monitoring |
| Point of Compliance |
| Point of Evaluation |
| Point of Evaluation and Performance Monitoring |
| Point of Exposure |
| Pre-Discharge Monitoring |
| Sediment Sampling Location |
| Surface Water Sample Location |
| Ditch |
| Drainage Outfall |
| Extraction Well |
| Extraction Well Domestic Supply |
| Geoprobe |
| Horizontal Well |
| Hydropunch |
| Injection Well |
| Leachate Collection System |
| Leak Detection System |
| Multichannel Well |
| Natural Gas Well - Angle |
| Natural Gas Well - Vertical |
| Oil and Gas Well - Vertical |
| Piezometer |
| Pond-Water Level location |
| Pond/Lake |
| Precipitation Gauge Monitor |
| Radioparticulate Air Monitoring |
| River |
| Seep |
| Spring |
| Standpipe |
| Stilling Well |
| Stream |
| Sump |
| Treatment System Effluent |
| Treatment System Influent |
| Well - After Water Treatment |
| Well Point |
| Wetland |
| Unknown |
| Ditch |
| Drainage Outfall |
| Extraction Well |
| Extraction Well Domestic Supply |
| Geoprobe |
| Horizontal Well |
| Hydropunch |
| Injection Well |
| Leachate Collection System |
| Leak Detection System |
| Multichannel Well |
| Natural Gas Well - Angle |
| Natural Gas Well - Vertical |
| Oil and Gas Well - Vertical |
| Piezometer |
| Pond-Water Level location |
| Pond/Lake |
| Precipitation Gauge Monitor |
| Radioparticulate Air Monitoring |
| River |
| Seep |
| Spring |
| Standpipe |
| Stilling Well |
| Stream |
| Sump |
| Treatment System Effluent |
| Treatment System Influent |
| Well - After Water Treatment |
| Well Point |
| Wetland |