| Well Information Table |
|---|
| Common Well ID | NA04001010AAA1 EW-35U |
| USBR Well ID | EW35U |
| USGS Well ID | 374407105511601 |
| GSDNP Well Name | 374407105511601 |
| USGS Station Name | NA04001010AAA1 EW-35U |
| USGS Construction Date | 09/05/1982 |
| USGS Site Type | Well |
| USGS Site Use Information | Observation |
| USGS Groundwater Use Information | Unknown |
| Data Source(s) | USGS, USBR |
| Location Data |
|---|
| TRS | NA04001010AAA1 EW-35U |
| USBR TRS | NA04001010AAA1 |
| USGS TRS 1 | NA04001010AAA1 EW-35U |
| Longitude/Latitude (NAD83) | -105.85502763 , 37.73525282 |
| Longitude/Latitude Data Source | USBOR EW well locations |
| USGS Longitude/Latitude (NAD83) | -105.8550206 , 37.73527770 |
| USBR Longitude/Latitude (NAD27) | -105.854451497597 , 37.7352528905383 |
| Easting, Northing RGDSS-NAD83 (US ft) | 147694.01 , 269199.53 |
| USGS Topography | Valley flat |
| USGS County | Alamosa County |
| USGS Map Name | HOOPER WEST |
| USGS Map Scale | 24000 |
| Elevation and Depth Data |
|---|
| Ground Elevation (ft NAVD88) | 7548.76 |
| Elevation Data Source | USBOR EW well database |
| USBR Ground Elevation (ft NGVD29) | 7544.9 |
| USGS Ground Elevation (ft NGVD29) | 7544.90 |
| 1/3-Arc Second NED Ground Elevation (ft NAVD88) | 7550.23 |
| 1-Arc Second NED Ground Elevation (ft NAVD88) | 7548.97 |
| SRTM Ground Elevation (ft NAVD88) | 7562.66 |
| Total Depth (ft) | 45.00 |
| USBR Total Depth (ft) | 45 |
| USGS Hole Depth (ft) | 140.00 |
| USGS Well Depth (ft) | 43.00 |
| Model Layer | 1 |
| Model Layer Source | Aquifer Type |
| Depth of Bottom of Layer 1 | 99 |
| Depth of Bottom of Layer 2 | 249 |
| Depth of Bottom of Layer 3 | 1338 |
| Depth of Bottom of Layer 4 | 2485 |
| 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 | 804 |
| Water-level Date Range | 09/30/1982 thru 02/07/2025 |
| Monitored within the last 18 months | Yes, most recently on 02/07/2025 |
| Depth-to-Water Range (ft) | 5.96 to 22.15 |
| Water Table Elevation Range (ft NAVD88) | 7526.61 to 7542.80 |
| Water-Level-Source:Number-of-Measurements | USGS:477 USBR:492 |
