SC Water And Sewer Plants Practice Questions - South Carolina Water And Sewer Plants Contractor Examination Exam

Previously disturbed soil may still be classified Type A if it looks cohesive A protective system for an excavation 20 feet or deeper must be designed by a registered professional engineer or based on tabulated data approved by a registered professional engineer Type A soil may always be sloped at 1/2:1 regardless of depth and duration A competent person may waive a protective system in any excavation if no water is visible