| SN | Place | Depth (Feet) | Radon (Bqll−1) |
| 1 | Rajapura | 1000 | 32.40 |
| 2 | Yarandalli | 300 | 48.00 |
| 3 | Yarandalli | 730 | 32.90 |
| 4 | Yarandalli | 350 | 52.10 |
| 5 | Arasanahalli | 1050 | 46.60 |
| 6 | Siddanahalli | 190 | 28.10 |