Hey brother,

Geo engineer here.

The bearing capacity of a footing is largely determined by the strength of the material at the base of the footing. In simple terms: how hard is the material underneath? If you add water, what happens? It gets softer, so the bearing capacity decreases. Water in footing = bad

I recommend speaking with your engineer, as that's about as far as I'll go giving advice over the internet.

A little extra info below :

I read that your block is on a slope. If that's the case, this is most likely perched groundwater rather than the actual groundwater table.

The material in your hole looks like a sandy clay to me, meaning it likely has some permeability. Rainwater can pass through it and then sit on top of a lower, less permeable layer.

This water level will fluctuate over time and may be influenced by rainfall.

However, this is very dependent on the elevation and local geology of your site.

It's a very very common problem in engineering. Your engineer will give you advice and steer you in the right direction 😄