Georgia Residential Contractor Practice Exam

The minimum depth of 2 feet above any permanent seasonal ground water table, rock, or other impervious soil layer is critical for ensuring proper drainage and structural integrity in excavated areas. When trenches are too close to these layers, there is a risk of water infiltration, which can lead to erosion or instability of the surrounding soil. Additionally, a depth of at least 2 feet allows for adequate soil settlement and minimizes the likelihood of water accumulation that could impact any underground structures or utilities. This standard is established to protect both the construction site and the integrity of the project being undertaken. Ultimately, adhering to this requirement helps ensure that construction is safe, compliant with regulations, and sustainable in the long term.