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Hi Focht3, hope you are ok. In fact the subsidence is due to the withdrawal of water, it has been reduced but it won't stop. There is something interesting here, the dam is an homogeneous block compounded by a CL. There is no impervious core or something like that. The material is very dense and...

Hi. At the moment we are using GPR to look buried objects (metallic). We got very good results when we were over a buried pipe, we obtained depth and a nice image. The detail is that we knew the pipe was there, it was just a test. Nothing in particular has been found, even we know that lots of...

Hi all. Thanks for your answers, I'm checking all the stuff you have told me, and all your advices are helping me a lot, specially because there are a few new terms that I didn't know. In fact, we have subsidence there. The land moves down at a rate of 2 to 5 cm per year (I know is a lot, but...

Hi again, thank you very much for your answers!!!! This is an old embankment that doesn't have a homogeneous design, originally it was built during the 40's, following some techniques that were developed by then (wood barriers and some walls). With the time its size has had to be increased (and...

Hi all! There is an old embankment 3H 1V, build circa 40's. Its size an heigth have been changed with the time, due to it moves down, it protects some lowlands and suffers the subsidence effect. Because of that, its internal structure is not what it was in the past. There are sections that have...

I would advice you to check the regional and local geology, in order to determine the recharge zone. If you or your driller know the aquifer characteristics, and they don't match with the analysis of the water you tested, check for rests from the wheel development process.