| Site number | 25121 |
| Measuring point system | Grundnetz |
| Community | Polling |
| District | Weilheim-Schongau |
| Operator | |
| Aquifer | Quartär |
| Measurement site depth under ground [m] | 44.00 m |
| Ground level | 637.50 m above sealevel |
| Easting | 664025 (ETRS89 / UTM Zone 32N) |
| Northing | 5290702 |
| Observation period | 10.07.1975 to 05.07.2026 |
Hauptwerte (Tagesmittelwerte): |
| Maximum waterlevel (HHW) | 615.80 m above sealevel |
| Mean waterlevel (MW) | 612.57 m above sealevel |
| Minimum waterlevel (NNW) | 610.67 m above sealevel |
| Mean Highest Groundwater Level (MHGW) | 613.46 m above sealevel (Period: 01.11.1974 - 01.11.2026) |