| Site number | 8638 |
| Measuring point system | Grundnetz |
| Community | Mertingen |
| District | Donau-Ries |
| Operator | |
| Aquifer | Schotterflächen |
| Measurement site depth under ground [m] | 7.09 m |
| Ground level | 406.24 m above sealevel |
| Easting | 635094 (ETRS89 / UTM Zone 32N) |
| Northing | 5391632 |
| Observation period | 02.11.1956 to 13.07.2026 |
Hauptwerte (Tagesmittelwerte): |
| Maximum waterlevel (HHW) | 405.68 m above sealevel |
| Mean waterlevel (MW) | 404.13 m above sealevel |
| Minimum waterlevel (NNW) | 403.54 m above sealevel |
| Mean Highest Groundwater Level (MHGW) | 404.96 m above sealevel (Period: 01.11.1956 - 01.11.2026) |