Masangkay, N. L. (2017). Utilization of drip water system in the mine rehabilitation during the dry season (Unpublished master's thesis). Public Management Development Program, Development Academy of the Philippines.

Public Management Development Program Middle Managers Class Batch 13 Thesis (MMC)--Development Academy of the Philippines.

Pursuant to Chapter XI Section 71 of the republic Act (R.A.) No. 7942 otherwise known as the Philippine Mining Act of 1995, mining contractors and permittees are required to rehabilitate excavated, mined-out, tailings and disturbed areas. The Mines and Geosciences Bureau (MGB), an attached agency of the Department of Environment and Natural Resources (DENR), si mandated by the above law to monitor the compliance of the mining permittees in undertaking rehabilitation activities as contained in their submitted and approved Annual Environmental Protection and Enhancement Program (AEPEP). The compliance of the permittees is one of the Major Final Output (MFO) of the agency. In as much as the rehabilitation activities are being conducted annually, the effects of climate change all over the world have debilitating effects on the planted trees that resulted in high mortality. Due to climate change, there are less rain and longer dry months. As a result of this, mining contractors cannot sustain watering the planted trees during the lean season because of insufficient water supply. Normally, the company supplies eight (8) liters a day per planted tree using flooding method, and for a hectare with 2,500 endemic trees planted, the water requirement for a hectare is 20,000 liters of water equivalent to Php542,485.80 for the three-month project implementation. The drip water system was installed in the pilot test rehabilitated area to bridge the gap between the rainy and the dry season. The system was not only economical in terms of water consumption where only 2.83 liters of water was being required and directed to the rooting system of the tree through micro hoses, thereby eliminating wastage through unintended water channeling, but also required less capital. For a hectare planted woth 2,500 trees, the total amount is only Php41,245.62 for a five-year life of the system. As a result of the application of the drip water system where all the planted trees survived the dry summer months, the DENR, the lead government agency in the monitoring of the status of rehabilitated disturbed areas, recommended the installation of the drip system to other disturbed areas before the next dry months.