Bore Hole Depth below ground level (in meters) Depth below ground level (in meters) Lithology based on the Drilling by Direct Rotary cum Down the Hole Hammer Drilling Rig. JNU 1 0 9.14 Top soil dry JNU 1 9.14 18.29 Clay and silt JNU 1 18.29 32.01 Sand and Clay JNU 1 32.01 45.73 Clay, Quartzite JNU 1 45.73 64.02 Weathered Quartzite JNU 1 64.02 82.31 Weathered Quartzite and Feldspar Veins JNU 1 82.31 86.89 Quartzite veins and Feldspar veins JNU 1 86.89 96.03 Weathered Quartzite and Aplite JNU 1 96.03 105.18 Hard compact quartzite JNU 1 105.18 114.32 Fractured quartzite JNU 1 114.32 118.9 Non ferruginous quartzite JNU 1 118.9 137.19 Fractured quartzite JNU 1 137.19 150.91 Non ferruginous quartzite JNU 1 150.91 164.63 Quartz and Feldspar veins JNU 1 164.63 182.92 Coarse quartzite JNU 2 0 4.57 Top soil JNU 2 4.57 9.14 Clay and silt JNU 2 9.14 13.71 Ferruginous intercalation JNU 2 13.71 22.86 Sand and ferruginous quartzite JNU 2 22.86 36.58 Sand , clay and quartzite JNU 2 36.58 41.58 Ferruginous quartzite and mica JNU 2 41.58 50.3 Weathered mica schist JNU 2 50.3 59.45 Weathered mica schist and quartz vein JNU 2 59.45 73.17 Ferruginous quartzite JNU 2 73.17 96.03 Fractured quartzite JNU 2 96.03 100.6 Hard compact quartzite JNU 2 100.6 105.18 Quartzite and mica schist JNU 2 105.18 109.75 Ferruginous quartzite JNU 2 109.75 114.32 Mica schist and quartz vein JNU 2 114.32 128.04 Ferruginous mica schist and quartz vein JNU 2 128.04 132.62 Compact mica schist JNU 2 132.62 137.19 Fractured quartzite JNU 2 137.19 146.34 Ferruginous quartzite JNU 2 146.34 150.91 Compact mica schist JNU 2 150.91 169.2 Compact mica schist and quartzite JNU 2 169.2 182.92 Compact mica schist

Table 1: Details of different drilling sites in JNU New Delhi, India.