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This website adopts the Web Content Accessibility Guidelines (WCAG 2.0) as the accessibility standard for all its related web development and services. WCAG 2.0 is also an international standard, ISO 40500. This certifies it as a stable and referenceable technical standard. 

WCAG 2.0 contains 12 guidelines organized under 4 principles: Perceivable, Operable, Understandable, and Robust (POUR for short). There are testable success criteria for each guideline. Compliance to these criteria is measured in three levels: A, AA, or AAA. A guide to understanding and implementing Web Content Accessibility Guidelines 2.0 is available at: https://www.w3.org/TR/UNDERSTANDING-WCAG20/

Accessibility Features

Shortcut Keys Combination Activation Combination keys used for each browser.

	Chrome for Linux press (Alt+Shift+shortcut_key) 
	Chrome for Windows press (Alt+shortcut_key) 
	For Firefox press (Alt+Shift+shortcut_key) 
	For Internet Explorer press (Alt+Shift+shortcut_key) then press (enter)
	On Mac OS press (Ctrl+Opt+shortcut_key)

	Accessibility Statement (Combination + 0): Statement page that will show the available accessibility keys. 
	Home Page (Combination + H): Accessibility key for redirecting to homepage. 
	Main Content (Combination + R): Shortcut for viewing the content section of the current page. 
	FAQ (Combination + Q): Shortcut for FAQ page. 
	Contact (Combination + C): Shortcut for contact page or form inquiries. 
	Feedback (Combination + K): Shortcut for feedback page. 
	Site Map (Combination + M): Shortcut for site map (footer agency) section of the page. 
	Search (Combination + S): Shortcut for search page. 

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Audited Financial Statements in the immediate past three (3) years*

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Current: Audited Financial Statements in the immediate past three (3) years*

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*consolidated with the MWSS Corporate Office

Annual Audit Report for the Years Ended December 31, 2023 and 2022
- Admin Transmittal
- BOT Transmittal
Annual Audit Report for 2022
Annual Audit Report for 2021
Annual Audit Report for 2020
Annual Audit Report for 2019
Annual Audit Report for 2018
Annual Audit Report for 2017
Annual Audit Report for 2016
Annual Audit Report for 2015
Annual Audit Report for 2014
Annual Audit Report for 2013
Annual Audit Report for 2012
Annual Audit Report for 2011
Annual Audit Report for 2010
Annual Audit Report for 2009

The Metropolitan Waterworks and Sewerage System Regulatory Office (MWSS RO) was created in August 1997 by virtue of the Concession Agreements signed between the MWSS and the two Concessionaires: Manila Water Company, Inc. (Manila Water) for the East Zone and Maynilad Water Services, Inc. (Maynilad) for the West Zone.

The MWSS RO is mandated to monitor the performance of the Concessionaires with respect to their contractual obligations under the RCAs. Among its many functions, the MWSS RO reviews, monitors and enforces rates and service standards; arranges and reports regular independent audits of the performance of the Concessionaires; and monitors the infrastructure assets.

ABOUT US

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OFFICE ADDRESS

MWSS RO Building, Katipunan Avenue, corner H. Ventura Street,
Barangay Pansol, Balara, Quezon City 1108