A.H. Beck drills shafts made to function as wells installed into a pit where storm water is collected from overflowing ponds in Puerto Rico.
This project consisted of twelve (12) drilled shafts to function as wells (to inject storm water back into the local aquifer); plus one (1) dedicated as a vent shaft. All wells were installed inside a pit several feet below ground level where storm water was collected from overflowing holding ponds. Shafts, 30 inches in diameter and with depths of up to 130 feet, were drilled dry. A slotted PVC pipe was installed and encapsulated in pea gravel to allow water flow. The top was covered with several layers of gravel and a geo-synthetic fabric to prevent fines from reaching injection wells.