The MWSS officially releases new water rates for the concessionaires via a press conference held at the MWSS Bulwagan on 12 February 2013 by the MWSS Regulatory Office.  The rates, which are approved by the MWSS Board of Trustees, are supposed to be new ones to be used by the two concessionaires in their respective service areas for the next 5 years and were borne out of the rate rebasing exercise held this year.  The exercise is a series of fora wherein the performance of the concessionaires for the last 5 years are reviewed and targets are set for the next 6 years. The new set of rates is actually a step in the opposite direction for the concessionaires as it prescribes a lowering of rates in the next 5 years rather than an increase, which the two concessionaires originally proposed.

Among those present were media personnel of ABS-CBN, GMA 7, TV 5, Solar News from television; DZBM, DWIZ, DZRH from radio; and Philippine Daily Inquirer,  Manila Bulletin and Manila Times from the print media.