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| Holes | Special phenomena in the drilling process | DCA | Results (m) |
| Basis for determination | Top boundary depths the CZ (m) | Heights of the CZ (m) | Basis for determination | Top boundary depths the CZ (m) | Heights of the CZ (m) |
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| JE1 | At the depth of 240.00 m, drill dropped with 25 cm distance; at 241.40 m, suction phenomenon | 240.00 | 22.70 | Below 238.00 m, extremely broken core, | 238.00 | 24.70 | 24.70 |
| JE2 | Drill tool was stuck at a depth 240.10 m with strong vibration; at 241.40 m, suction phenomenon | 240.10 | 22.37 | Below 239.00 m, broken core, | 239.00 | 23.47 | 23.47 |
| JE3 | During 237.00~238.00 m, drill dropped with 60 cm distance | 237.00 | 23.55 | Below 238.28 m, fragmental core, | 238.28 | 22.27 | 23.55 |
| JE4 | At 238.12 m, drill dropped with 30 cm distance; at 238.56 m, suction phenomenon | 238.12 | 23.16 | Below 237.20 m, fragmental core, | 237.20 | 23.08 | 23.08 |
| JE5 | None | — | 0 | Integrity core, | — | 0 | 0 |
| JE6 | None | — | 0 | Integrity core, | — | 0 | 0 |
| JE7 | At 240.80 m, drill dropped with 15 cm distance; at 243.15 m, suction phenomenon | 240.80 | 21.30 | Below 239.15 m, broken core, | 239.15 | 22.95 | 22.95 |
| JE8 | At 247.02 m, drill dropped with 35 cm distance; at 239.00 m, suction phenomenon | 247.02 | 19.18 | Below 241.70 m, broken core, | 241.70 | 24.50 | 24.50 |
| JE9 | At 238.00 m, suction phenomenon; at 247.72 m, drill dropped with 15 cm distance, and drill tool was stuck | 238.00 | 20.58 | During 234.80~238.00 m, disorder bedding, | 234.80 | 23.78 | 23.78 |
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