MWSS RO Regulators

The MWSS RO Regulators collectively steer the regulatory functions, maintain transparency, ensure compliance, resolve disputes, and work toward the goal of providing efficient and sustainable water services to the public. Their roles involve management, oversight, policy formulation, and technical expertise to achieve the regulatory objectives set by the government.

Patrick Lester N. Ty

Patrick Lester N. Ty

Chief Regulator

    Claudine B. Orocio-Isorena

    Claudine B. Orocio-Isorena

    Deputy Administrator for Administration and Legal Affairs

      Evelyn B. Agustin

      Evelyn B. Agustin

      Deputy Administrator for Technical Regulation

        Lee Robert M. Britanico

        Lee Robert M. Britanico

        Deputy Administrator for Customer Service Regulation

          Christopher D. Chuegan

          Christopher D. Chuegan

          Acting Deputy Administrator for Financial Regulation

            MWSS RO Department Managers

            Joan Michelle S. Antonio

            Joan Michelle S. Antonio

            Department Manager A, Public Information


            Office of the Chief Regulator


              Ramon A. Javier

              Ramon A. Javier

              Department Manager A, Administration


              Administration and Legal Affairs Area


                Crescenciano B. Minas Jr.

                Crescenciano B. Minas Jr.

                Department Manager A, Legal Affairs


                Administration and Legal Affairs Area


                  Maricris T. Laciste

                  Maricris T. Laciste

                  Department Manager A,
                  Water Quality Control


                  Technical Regulation Area


                    Joel A. Dominguez

                    Joel A. Dominguez

                    Department Manager A,
                    Operation Monitoring


                    Technical Regulation Area


                      Francis Eduardo P. Ayapana Jr.

                      Francis Eduardo P. Ayapana Jr.

                      Department Manager A,
                      Metering Efficiency


                      Customer Service Regulation Area


                        Clarissa T. Jallorina

                        Clarissa T. Jallorina

                        Department Manager A,
                        Complaints Services Monitoring


                        Customer Service Regulation Area


                          Mark Billy B. Antonio

                          Mark Billy B. Antonio

                          Acting Department Manager A,
                          Tariff Control And Monitoring


                          Financial Regulation Area


                            Joriel M. Dagsa

                            Joriel M. Dagsa

                            Department Manager A,
                            Financial Audit and Asset Monitoring


                            Financial Regulation Area