| Site number | 4155 |
| Measuring point system | Staatliches Sondernetz |
| Community | Karlstein a.Main |
| District | Aschaffenburg |
| Operator | |
| Aquifer | Quartär |
| Measurement site depth under ground [m] | 10.20 m |
| Ground level | 107.94 m above sealevel |
| Easting | 499099 (ETRS89 / UTM Zone 32N) |
| Northing | 5543595 |
| Observation period | 02.11.1987 to 09.07.2026 |
Hauptwerte (Tagesmittelwerte): |
| Maximum waterlevel (HHW) | 105.29 m above sealevel |
| Mean waterlevel (MW) | 102.42 m above sealevel |
| Minimum waterlevel (NNW) | 101.91 m above sealevel |
| Mean Highest Groundwater Level (MHGW) | 102.95 m above sealevel (Period: 01.11.1987 - 01.11.2026) |
