We are redoing our basement, removing the existing concrete (no membrane), dropping the soil level by 150mm and relaying the concrete which will hopefully net us an extra 80 square meters of useable space.
Before removing the concrete I knew our main power lines came up through a couple of (no standard) conduits, however are removing the concrete it looks like the power cables come under the foundations and into the house with no protection at all. To make matters worse they come into the house through a pool of water.
See photos (more can be uploaded if need be)

The water comes from an old french drain which is being diverted, but still
should I be concerned?
Should I box around it before relaying the slab?
Contact the power company/council? (note alterations are being done without consent as technically no change of use)
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