| Name | Maardu F-540 borehole |
| Number | F-540 |
| Type | borehole (section) |
| Country | Estonia |
| Parish | Jõelähtme |
| Settlement | Ülgase |
| Elevation | 44.00 |
| Coordinates | 59.480853, 25.084022 |
| X | 6594178 |
| Y | 561433 |
| Coord. agent | Eesti Geoloogiakeskus (EGK) |
| Strat. top | Volkhov Stage |
| Strat. base | Proterozoic |
| Remarks | puurit 1980 ehitusmat; EGF 3947 |
| Estonian Land Board ID | 1388 |
| Date changed | 2022-11-21 |
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