Drilling of approx. 400 boreholes to probe for unexploded bombs down to a suspected horizon of 8.00m below ground level. Borehole sealing with a clay-dust-cement suspension using the contractor method.
A suspected anomaly was detected at a depth of 4.00m. The suspected anomaly was uncovered and recovered using water surcharging and diving. After recovery, the hydraulically effective separation layer was restored using the above-mentioned clay-flour-cement suspension.
