SECTION 1. Subject to the conditions established under this Act and to the provisions of Commonwealth Act Numbered One hundred and forty-six, as amended, and the Constitution, there is hereby granted to Carlos Nable, hereinafter known as the grantee, for a period of twenty-five years from the approval of this Act, the right, privilege, and authority to construct, maintain and operate a water system for the purpose of distributing water for sale within the limits of the municipality of Calapan, Province of Oriental Mindoro. For this purpose the grantee shall have the right and privilege:
To construct, maintain and operate water mains, pipes, conduits, reservoirs, or dams on land owned or duly acquired or obtained by the grantee for said purpose;
To install, lay, and maintain above or below the ground on the right of way duly acquired or obtained by said grantee, or below the ground on all streets, public thoroughfares and public places and along or under the bridges within the limits of the said municipality, water mains, pipes and conduits, and all other necessary apparatus and appurtenances for the furnishing and distribution of water;
To supply, sell, and furnish such water to any person, corporation, or public or private concern within the limits of the said municipality for domestic or manufacturing uses and for any other use to which water may be put, and to charge and collect a schedule of prices and conventional rates for the use of said water, which schedule of prices and rates shall at all times be subject to regulation by the Public Service Commission;
To purify the sources of the water supply, the reservoirs and the dams subject to the approval of the Bureau of Health, and to regulate the control and use, and prevent the waste of water: Provided, That this franchise shall not be effective until the grantee shall have obtained from the Public Service Commission a certificate showing the public necessity and convenience thereof, according to the pose of section fifteen of Commonwealth Act Numbered hundred and forty-six, as amended, and shall have filed such certificate with the Secretary of Public Works and communications, upon accepting this franchise: And provided, further, That if the grantee does not file the proper application for said certificate with the Public Service Commission, within three months from the date of the approval of this Act, this franchise shall become null and void.