Structural Drying & Dehumidification in Wentzville, MO

On karst that is entirely consistent. Limestone here carries water along solution channels that follow the rock rather than the surface, so flow can arrive from a direction that makes no sense looking at the yard. Rain that fell on another property can reach your foundation with nothing visible in between. Because the water is not on the surface, surface remedies do little, and interception at the wall with a drain and sump is often the practical answer.

Have it looked at rather than filling it. In karst country a new depression can be soil washing into a solution feature below, which is the early stage of a sinkhole, or it can be ordinary settlement over a construction disturbance. Filling it hides the evidence and can accelerate the process by adding weight. Photographs, a measurement, and observation over a season give a geotechnical professional something useful to assess.

More likely than an old one, and not guaranteed by the construction. Newer basements come with drain tile and sumps, which handles the ordinary case well. What construction cannot control is whether the excavation intersected a path that carries water in wet periods, which is a function of the rock rather than the builder. A new house with a genuine water problem is not necessarily a badly built one, and the investigation should look at the ground.