Agency’s Mandate and functions, List of Officials with their positions and designation, and Contact information.


We derive our Mandate primarily from Republic Act 6234 which states the basic goals of the System and declares as its major policy the proper operation and maintenance of waterworks system to ensure an uninterrupted and adequate supply and distribution of potable water for domestic and other purposes and the proper operation and maintenance of sewerage systems in its service area which includes the whole of Metro Manila and parts of Cavite and Rizal.


By 2024, MWSS-CO shall be a world-class benchmarked agency for its water security program with technically competent personnel and infrastructure.


  • Optimize and expand our water sources and secure their watersheds and facilities
  • Provide equitable access to clean, potable and affordable water
  • Expand the coverage of sewerage and sanitation services
  • Ensure prudence and efficiency in the implementation of all our plans.

List of Officials:

a. Board of Trustees:

1 PDDG Reynaldo V. Velasco (Ret.)  Chairman
2 Lt. Gen. Emmanuel B. Salamat (Ret.)  Vice Chairman / Administrator
3 Atty. Mariano C. Alegarbes  Member
4 Engr. Merly M. Cruz  Member
5 Atty. Jose R. Hernandez  Member
6 Atty. Melanie S. Lambino  Member
7 Atty. Valeriano F. Pasquil  Member
8 Col. Melchior I. Acosta, Jr.  Member
9 DGCC Elpidio J. Vega  Member

b. Officers:

1 LTGEN EMMANUEL B. SALAMAT (Ret) Administrator
2 LEONOR C. CLEOFAS Deputy Administrator, Engineering and Technical Operations Group
3 ROMEO D. RODEROS Deputy Administrator for Management Services Group
4 RONALD S. ABRIGO OIC, Deputy Administrator for Innovation and Technology Group
5 WALTER M. PARTOSA Manager, Asset Management Department
6 FLORENDO B. BATASIN, JR. Manager, Internal Audit Department
7 SUSANNE S. STA. MARIA OIC, Policy, Planning and Public Relations Department
8 AUGUSTINE M. VESTIL, JR. Manager, Legal Services Department
9 LAURELYNN F. DELOS SANTOS Manager, Human Resources and Organizational Development and Learning Department
10 JOCELYN M. TOLEDO Manager, Finance Department
11 ANABELLA S. ALTUNA Manager, Operations Support Department
12 BYRON A. CARBON Manager, Research and Standards Development Department
13 RAMON R. FABUL Manager, Water and Sewerage Management Department
14 JOSE D. DORADO, JR. Manager, Site Operations Management Department
15 JOSE ALFREDO B. ESCOTO, JR. Manager, Field Operations Management Department

MWSS BOT and Top Officials 2019 Contact Information

II.  DBM Approved Budget and Corresponding Targets for FY 2019

III.  Modification made pursuant to the general and special provisions in the FY 2018 GAA  (Not Applicable)

IV.  FY 2018 Annual Procurement Plan (FY 2018 APP non-CSE), Indicative FY 2019 APP non-CSE; and FY 2019 APP for Common-Supplies and Equipment (FY 2019 APP CSE)


3rd Revised

2nd Revised

1st Revised


V.  Major Projects, Programs and Activities, Beneficiaries, and Status of Implementation for FY 2018.

VI.  Annual Financial Reports

B.  For GOCC/WD (2014-2019 Annual Report)


           Annual Audit Report



  1. MWSS2016_Transmittal_Letters
  2. MWSS2016_Cover
  3. MWSS2016_Executive_Summary
  4. MWSS2016_Table_of_Contents
  5. MWSS2016_Flyleaves
  6. MWSS2016_Part1-Auditor’s_Report
  7. MWSS2016_Part1-Mgmt_Responsibility_for_FS
  8. MWSS2016_Part1-FS
  9. MWSS2016_Part1-Notes_to_FS
  10. MWSS2016_Part2-Observations_and_Recomm
  11. MWSS2016_Part3-Status_of_PYs_Recomm


  1. MWSS2015_Transmittal_Letters
  2. MWSS2015_Cover
  3. MWSS2015_Executive_Summary
  4. MWSS2015_Table_of_Contents
  5. MWSS2015_Flyleaves
  6. MWSS2015_Part1-Auditor’s_Report
  7. MWSS2015_Part1-Mgmt_Responsibility_for_FS
  8. MWSS2015_Part1-FS
  9. MWSS2015_Part1-Notes_to_FS
  10. MWSS2015_Part2-Comments_and_Observations
  11. MWSS2015_Part3-Status_of_PY’s_Recomm


  1. MWSS2014_Executive_Summary
  2. MWSS2014_Independent_Auditor’s_Report
  3. MWSS2014_Mgt_Responsibility_for_FS
  4. MWSS2014_FS_Cash_Flow
  5. MWSS2014_FS_Changes_in_Equity
  6. MWSS2014_FS_Comprehensive_Income
  7. MWSS2014_FS_Financial_Position
  8. MWSS2014_Notes_to_FS
  9. MWSS2014_Observations_and_Recommendations
  10. MWSS2014_Status_of_PY’s_Recommendations

VII.  Annual Reports on the status of income authorized by law to be deposited outside the National Treasury. (Not Applicable)

VIII.  QMS Certification of at least one core process by an international certifying body (ICB)

IX.  System of Ranking Delivery Units for FY 2019 PBB

X.  The Agency Review and Compliance Procedure of Statements and Financial Disclosures

XI.  The Final People’s Freedom Of Information (FOI) Manual signed by head of agency, Agency Information Inventory; 2017 and 2018 FOI Summary Report, and 2017 and 2018 FOI Registry