SECTION 1. Subsection (c) of Section two of Republic Act Numbered Sixty-two hundred and thirty-four, as amended, is hereby amended to read as follows:
"(c) The System shall own and/or have jurisdiction, supervision and control over all waterworks and sewerage systems in the territory comprising the cities of Manila, Pasay, Quezon, Cavite and Caloocan, the municipalities of Las Piñas, Makati, Malabon, Mandaluyong, Marikina, Navotas, Parañaque, Pasig, Pateros, San Juan, Taguig, Valenzuela, all of Metropolitan Manila, the entire province of Rizal, and the municipalities of Bacoor, Imus, Kawit, Noveleta, Rosario, all of Cavite Province. The System shall also own and/or have jurisdiction, supervision and control over all waterworks and sewerage systems in Lungsod Silangan, Muntinlupa and, subject to the approval of the President, other areas that may come within the development path of the expanding Metropolitan Manila Area, which areas the Board of Metropolitan Waterworks and Sewerage System may, from time to time, determine and declare as contiguous to its service area and requiring immediate attention by the System, under such terms and conditions as may be agreed upon by the parties concerned. All other waterworks and sewerage systems now under the supervision and control of the Metropolitan Waterworks and Sewerage System (MWSS), are hereby returned, ceded, transferred and turned over to the provinces, cities and municipalities for their supervision, control and administration, until such time that they qualify within the program of development under the Local Water Utilities Administration (LWUA). The transfer and turnover to the local governments concerned shall be completed within the period of ninety (90) days from the promulgation of the decree."