| Borehole Number: |
| Coordinates Type: WGS 84 |
| Coordinates Format: Decimal Degrees (DD) |
| Coordinates: -23.251056 , 20.019022 |
| Location: Ncojane |
| Location Description: SOUTH WEST OF NCOJANE |
| Start Drill: 2006-01-21 |
| End Drill: 2006-01-08 |
| Borehole Type: Groundwater |
| Drilling Method: Percussion |
| Drilling Rig(s): N/A |
| Sample Type: Water |
| Depth of Surface Casing: N/A |
| Hole Inclination: N/A |
| Estimated Yield: 43.9 M3/hr |
| Static Water Level: 114.6 m |
| Borehole Water Strike: 174 Metres |
| End of Hole (Depth): 250 Metres |
| Hole Diameter: 251 Millimetres |
| Log Formation: |
| No. | From (m) | To (m) | Log Formation |
|---|
| 1. | 0 | 7 | Light brown fine grained sand |
| 2. | 7 | 14 | Brown very fine grained sand |
| 3. | 14 | 15 | light brown fine grained sand |
| 4. | 15 | 20 | white calcrete |
| 5. | 20 | 45 | red to brown silcrete |
| 6. | 45 | 56 | pink fine grained sandstone |
| 7. | 56 | 57 | Pine fine grained sandstone |
| 8. | 57 | 93 | Pink to red fine grained sandstone |
| 9. | 93 | 98 | light greenish yellow siltstone |
| 10. | 98 | 114 | light greenish yellow micaceous |
| 11. | 114 | 123 | Dark grey micaceous mudstone |
| 12. | 123 | 134 | Light grey siltstone |
| 13. | 134 | 135 | Light greenish yellow micaceous siltstone |
| 14. | 135 | 170 | light greenish yellow micaceous siltstone |
| 15. | 170 | 173 | coal |
| 16. | 173 | 179 | white fine to coarse grained sandstone |
| 17. | 179 | 180 | white very coarse grained sandstone |
| 18. | 180 | 196 | white medium to coarse grained micaceous sandstone |
| 19. | 196 | 213 | orange fine to coarse grained micaceous sandstone |
| 20. | 213 | 222 | purple to brown fine grained micaceous sandstone |
| 21. | 222 | 229 | Black micaceous mudstone |
| 22. | 229 | 250 | Black micaceous mudstone |
© Botswana Geoscience Institute 2025 | www.bgi.org.bw | Disclaimer