High-tech gadgets usually used to detect minerals underground are being tapped to uncover hidden pipes discharging untreated wastewater into the sea off this resort island. Members of a DENR team use a high-tech ground penetrating radar device to detect underground pipes illegally discharging into the waters of Boracay Island. At least 33 sites believed to be with buried illegal pipes have been detected along the island’s beach by ground-penetrating radar (GPR) devices. Three of the sites have been confirmed and dug up, according to Environment Secretary Roy Cimatu.

Burgos, N. P. Jr. (2018, May 19). Search for poop pipes starts: DENR sees 33 Boracay sites where feces, other untreated wastes pass through to the sea. Philippine Daily Inquirer, p. A10.