| Well Information Table |
|---|
| Common Well ID | NA03901207CAB3 EW-21U |
| USBR Well ID | EW21U |
| USGS Well ID | 373825105421503 |
| GSDNP Well Name | 373825105421503 |
| USGS Station Name | NA03901207CAB3 EW-21U |
| USGS Construction Date | 10/10/1980 |
| USGS Site Type | Well |
| USGS Site Use Information | Observation |
| USGS Groundwater Use Information | Unused |
| Data Source(s) | USGS, USBR |
| Location Data |
|---|
| TRS | NA03901207CAB3 EW-21U |
| USBR TRS | NA03901207CAB3 |
| USGS TRS 1 | NA03901207CAB3 EW-21U |
| Longitude/Latitude (NAD83) | -105.70483617 , 37.63921620 |
| Longitude/Latitude Data Source | USBOR EW well locations |
| USGS Longitude/Latitude (NAD83) | -105.7047395 , 37.64027997 |
| USBR Longitude/Latitude (NAD27) | -105.704263337425 , 37.6392139808892 |
| Easting, Northing RGDSS-NAD83 (US ft) | 191100.05 , 234188.43 |
| USGS Topography | Valley flat |
| USGS County | Alamosa County |
| USGS Map Name | MEDANO RANCH |
| USGS Map Scale | 24000 |
| Elevation and Depth Data |
|---|
| Ground Elevation (ft NAVD88) | 7528.61 |
| Elevation Data Source | USBOR EW well database |
| USBR Ground Elevation (ft NGVD29) | 7524.5 |
| USGS Ground Elevation (ft NGVD29) | 7524.30 |
| 1/3-Arc Second NED Ground Elevation (ft NAVD88) | 7528.44 |
| 1-Arc Second NED Ground Elevation (ft NAVD88) | 7527.71 |
| SRTM Ground Elevation (ft NAVD88) | 7536.33 |
| Total Depth (ft) | 50.00 |
| USBR Total Depth (ft) | 50 |
| USGS Hole Depth (ft) | 128.00 |
| USGS Well Depth (ft) | 49.00 |
| Model Layer | 1 |
| Model Layer Source | Aquifer Type |
| Depth of Bottom of Layer 1 | 114 |
| Depth of Bottom of Layer 2 | 456 |
| Depth of Bottom of Layer 3 | 1445 |
| Depth of Bottom of Layer 4 | 3690 |
| Additional Well Information | Logs, Construction |
| Aquifer Information |
|---|
| Aquifer Type | Unconfined |
| Aquifer Type Source | EW_AQFR |
| USGS Hydrologic Unit | San Luis |
| USGS Data Available | Water-level (GW.LEV) |
| Water-level Database Information |
|---|
| Water-level Count | 855 |
| Water-level Date Range | 02/18/1978 thru 02/15/2025 |
| Monitored within the last 18 months | Yes, most recently on 02/15/2025 |
| Depth-to-Water Range (ft) | 6.74 to 9.93 |
| Water Table Elevation Range (ft NAVD88) | 7518.68 to 7521.87 |
| Water-Level-Source:Number-of-Measurements | USGS:336 USBR:556 |
