HB04340: AN ACT MANDATING THE ESTABLISHMENT AND MAINTENANCE OF A RAINWATER HARVESTING FACILITY IN ALL NEW INSTITUTIONAL, COMMERCIAL, AND RESIDENTIAL DEVELOPMENT PROJECTS IN METRO MANILA
This bill mandates the establishment and maintenance of rainwater harvesting facilities in all new institutional, commercial, and residential development projects in Metro Manila.1 This is a proactive measure to address the perennial problem of flooding in the metropolis.
The most interesting provision of this bill is the requirement for new buildings with an area of at least 1,500 square meters to reserve at least 3% of their total area for a rainwater harvesting facility. This will not only help in flood control but also promote water conservation as the collected rainwater can be used for non-potable purposes.