Prepare for the Georgia Residential Contractor Exam with our comprehensive review. This resource includes quizzes, flashcards, and essential study materials to boost your confidence and help you excel on test day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


Trenches must be installed a minimum of ____________ above any permanent seasonal ground water table, rock, or other impervious soil layer.

  1. 1 foot

  2. 2 feet

  3. 3 feet

  4. 4 feet

The correct answer is: 2 feet

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.