Boracay poor sewage and septic system of the island. The conditions of Boracay in 1997 led to the installment of a potable water supply system, a sewage treatment plant and a solid waste disposal system in Boracay which was operated by the Philippine Tourism Authority (PTA). The environmental concerns persisted due to noncompliance of numerous business establishments. Then President Gloria Macapagal Arroyo declared Boracay a Special Tourism Zone in 2005 while in April 2006 she gave the PTA administrative control over the island while mandating the agency to coordinate with the provincial government of Aklan. In 2012, the Philippine Department of
Boracay combined with poorly monitored snorkeling activity in coral rich areas. The Boracay Foundation Inc. (BFI) made efforts to remedy the situation by launching a "reefurbishment" program for the corals. In 2017, the BFI claimed the number of corals in Boracay increased from 15 to 20 percent since 2015 due to its project. Boracay has been experiencing an increased coliform bacteria population since the 1990s which contributed to a 60 percent decline in tourist arrivals in 1997. Although a potable water supply system, a solid waste disposal system, as well as a sewage treatment plant which began operation in 2003 were