| Site number | 23102 |
| Measuring point system | Verdichtungsnetz |
| Community | Grassau |
| District | Traunstein |
| Operator | |
| Aquifer | Schotterflächen |
| Measurement site depth under ground [m] | 3.39 m |
| Ground level | 539.78 m above sealevel |
| Easting | 759350 (ETRS89 / UTM Zone 32N) |
| Northing | 5296627 |
| Observation period | 03.01.1938 to 27.05.2026 |
Hauptwerte (Tagesmittelwerte): |
| Maximum waterlevel (HHW) | 538.91 m above sealevel |
| Mean waterlevel (MW) | 536.36 m above sealevel |
| Minimum waterlevel (NNW) | 534.10 m above sealevel |
| Mean Highest Groundwater Level (MHGW) | 537.60 m above sealevel (Period: 01.11.1937 - 01.11.2026) |