Hello, new here haven't seen any forums discussing this topic and not sure where to look.
Soil borings are collected throughout different locations in different places, depending on what is being built. And generally, these are thrown out eventually after enough years has passed. But I am only pointing out that soil samples exists for 50 ft to 150 ft below ground elevation.
example here: South east of the states ... [imgur.com]
Soil borings are collected throughout different locations in different places, depending on what is being built. And generally, these are thrown out eventually after enough years has passed. But I am only pointing out that soil samples exists for 50 ft to 150 ft below ground elevation.
example here: South east of the states ... [imgur.com]