Light shafts - Accumulating seepage water - What to do?

Dear forum members,

I have my first uncertainty regarding the planning and in this context came across this great forum and hope for ideas and impulses.

Regarding the initial situation:
A soil survey was conducted, from which the following soil conditions result:

0 – 0.2 m: Topsoil
0.2 – 0.6 m: Silt, strongly sandy, weakly gravelly, dark brown, slightly moist, stiff to semi-solid
0.6 – 1.3 m: Fine sand, strongly silty, weakly gravelly, light brown, moist, soft to stiff
1.3 – 2.5 m: Sand, gravelly, clayey, light brown, slightly moist, medium-dense to dense, ST (sand, clayey)
2.5 – 4.0 m: Clay, silty, weakly sandy, gray, moist, soft
4.0 – 4.8 m: Fine sand, silty, weakly gravelly, gray-brown, slightly moist to moist, medium-dense to dense

The load case “temporarily rising seepage water” applies.

A basement is planned, whereby the lower edge of the floor slab is located at about 3 m.

The connection of the basement light wells to the sewer system is not permitted. The infiltration basin for the roof drainage is located above 1.5 m below the ground surface and is therefore too high for drainage of the light wells.
The house planner now basically insists on WU light wells. They are covered at the top with an inclined glass pane. The “gable sides of the glass roof” are open.
How do you see this solution?
From my point of view, among other things, it is to be feared that in case of water ingress, whether through snow or garden hose bursts, there will be a problem with water in the WU light well.
Many thanks in advance for your contributions

Your planner is useless; for such cases there are soakaways. The additional costs for the [wu Lichtschächte] should be about the same level as the costs for creating the soakaway. I know people in the neighborhood who nevertheless connected the drainage to the sewer system, and so far nothing has happened.

Thank you very much, I have taken this as an opportunity to follow up again with the waterworks and confront them with the soil report. Under these circumstances, it is now possible after all to drain the light wells via the sewer system.

So, normal light shafts can be used, which are allowed to drain into the [Kanalisation].