| MWSS BOARD OF TRUSTEES | ||
| Name (Click name to view resume) | Positions | Contact Number |
| Elpidio J. Vega | Chairperson MWSS Board of Trustee | 8929-5551 |
| Leonor C. Cleofas | MWSS Administrator/Vice Chairperson MWSS Board of Trustee | 8922-2969 |
| Melchior I. Acosta Jr. | Board of Trustee | 8929-5551 |
| Merly M. Cruz | Board of Trustee | 8929-5551 |
| Jose R. Hernandez | Board of Trustee | 8929-5551 |
| Melanie S. Lambino | Board of Trustee | 8929-5551 |
| Dale Brian T. Go | Board of Trustee | 8929-5551 |
| Darlina T. Uy | Board of Trustee | 8929-5551 |
| Rogelio V. Quevedo | Board of Trustee | 8929-5551 |
MWSS BOARD COMMITTEES
| Committee | Member | Position |
| Executive and Governance Committee (EGC) | Elpidio J. Vega | Chair |
| Leonor C. Cleofas | Vice-Chair | |
| Jose R. Hernandez | Member | |
| Merly M. Cruz | Member | |
| Melanie Sia-Lambino | Member | |
| Rogelio V. Quevedo | Member | |
| Audit and Risk Managament Committee (ARMC) | Mariano C. Alegarbes | Chair |
| Jose R. Hernandez | Member | |
| Elpidio J. Vega | Member | |
| Leonor C. Cleofas | Member | |
| Melchior I. Acosta Jr. | Member | |
| Merly M. Cruz | Member | |
| Melanie Sia-Lambino | Member | |
| Darlina T. Uy | ||
| Human Resource Committee (HRC) | Melanie Sia-Lambino | Chair |
| Merly M. Cruz | Member | |
| Mariano C. Alegarbes | Member | |
| Elpidio J. Vega | ||
| Darlina T. Uy | Member | |
| Rogelio V. Quevedo | Member | |
| Concession Monitoring Committee (CMC) | Melchior I. Acosta Jr. | Chair |
| Jose R. Hernandez | Member | |
| Leonor C. Cleofas | Member | |
| Mariano C. Alegarbes | Member | |
| Rogelio V. Quevedo | Member | |
| Darlina T. Uy | Member |
Board Committee Membership 2022
Board Committee Membership 2021
Board Committee Membership 2020
Board Committee Membership 2019
Board Committee Membership 2018
Board Committee Membership 2017
MWSS REGULATORY OFFICE OFFICIALS
| Name / Position | Contact Number | GovMail (@ro.mwss.gov.ph) |
| Patrick Lester N. Ty Chief Regulator | 3435-8900 | patrick.ty |
| Evelyn B. Agustin Deputy Administrator for Technical Regulation | 3435-8904 | evelyn.agustin |
| Lee Robert M. Britanico Deputy Administrator for Customer Service Regulation | 3435-8903 | leerobert.britanico |
| Claudine B. Orocio-Isorena Deputy Administrator for Administration and Legal Affairs | 3435-8902 | claudine.isorena |
| Christopher D. Chuegan Acting Deputy Administrator for Financial Regulation | 3435-8901 | christopher.chuegan |
| Joan Michelle S. Antonio Dept. Manager A – Public Information Dept.(OCR) | 3435-8900 | joanmichelle.antonio |
| Crescenciano B. Minas Jr. Dept. Manager A – Legal (ALA) | 3435-8898 | crescenciano.minas |
| Ramon A. Javier Dept. Manager A – Administration (ALA) | 3435-8898 | ramon.javier |
| Joel A. Dominguez Dept. Manager A – Operations Monitoring (TRA) | 3435-8904 | joel.dominguez |
| Maricris T. Laciste Dept. Manager A – Water Quality Control (TRA | 3435-8904 | maricris.laciste |
| Rosendo O. Alegre Dept. Manager A – Complaints Services Monitoring (CSR) | 3435-8903 | rosendo.alegre |
| Francis Ayapana Dept. Manager A – Metering Efficiency (CSR) | 3435-8903 | francis.ayapana |
| Joriel Dagsa Dept. Manager A – Financial Audit and Asset Monitoring (FRA) | 3435-8901 | joriel.dagsa |
| Mark Billy Antonio Acting Dept. Manager A-Tariff Control And Monitoring (FRA) | 3435-8901 | markbilly.antonio |