Topic summary
Quarries
Extracted from the Wikipedia article Quarry.
Problems
Quarries in level areas that are located in flat terrain, in places where groundwater sits close to the surface, or which are located close to surface water often have engineering problems with drainage. Generally the water is removed by pumping while the quarry is operational, but for high inflows more complex approaches may be required. For example, the Coquina quarry is excavated to more than 60 feet (18 m) below sea level.