Section 3
SEC. 3. (a) The grantee shall have the right and authority, and is hereby authorized, subject to the laws and ordinances now in force, or that hereafter may be in force, not inconsistent herewith, to make in the manner and in the locations designated by the city engineer in the city of Manila and by the district engineer in the Province of Rizal all needful excavations and constructions in or upon any of the streets, thoroughfares, bridges, and public places designated in the next succeeding paragraph for the purpose of laying, placing, removing, and repairing gas mains and connections for the manufacture, generation, conduction, and distribution of gas for said gas system and in the manner and locations approved by the proper authorities, and for building, maintaining, and operating houses, works, and storage tanks therefor. (b) The streets, thoroughfares, bridges, and public places upon which the grantee is authorized to make such excavations and place etc' mains are as follows: On all streets, thoroughfares, and public places wherein it shall be deemed necessary or convenient by the grantee for the maintenance and conduct of a complete gas service : Provided, however, That the laying and installing of the mains and pipes shall be compulsory on the part of the grantee on any and all streets, thoroughfares, or public places along which a consumption of thirty cubic meters of gas per annum per meter of main pipe shall be guaranteed, and subscriptions for said amount shall be deemed a sufficient guaranty for the purpose of this section: And provided further, That the grantee shall, within the time provided for the beginning of the operation of the plant by section eleven hereof, have constructed and in operation at least fifty kilometers of main pipe lines. Plans for the use of the streets and laying of mains and conduits shall be subject to the approval of the city engineer in the city of Manila and of the district engineer in the Province of Rizal. Mains may be placed on or under such bridges in the said city of Manila as may be indicated by the city engineer, and on or under such bridges in the Province of Rizal as may be indicated by the district engineer. (c) All reasonable or necessary and proper changes in the routes of the pipe lines of the grantee may be made by the grantee with the approval and consent of the city engineer of the city of Manila, or of the district engineer of the Province of Rizal, as the case may be. (d) The grantee shall hold the city of Manila, the Province of Rizal, and the municipalities of the said province harmless from any and all claims, accounts, demands, or actions which may arise out of accidents or injuries, whether to property or persons, caused by the construction, installation, or operation of the plant, and shall place all streets, thoroughfares, roads, and public places upon which excavations have been made or pipes laid, in the same condition in which they were before making said excavations or laying said pipes.