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Disclosure Authorized Public Disclosure Authorized  \n67751  \nv1  \nDisclaimer  \nThe findings, interpretations, and conclusions expressed in this work are those of the writer and do not necessarily reflect the views of the World Bank. The information in this work is not intended to serve as legal advice. The World Bank does not guarantee the accuracy of the data included in this work and accepts no responsibility for any consequences of the use of such data.  \nThese manuals may be reproduced in full or in part for non-profit purposes without prior permission provided proper credit is given to the publisher, The World Bank Office Manila.  \nThe World Bank Office Manila  \n23rd Floor, The Taipan Place  \nF. Ortigas Jr. Road, Ortigas Center  \n1605 Pasig City, Metro Manila, Philippines  \nManila, Philippines  \nFebruary 2012  \nCover Design: The images on the cover were derived from two photographs courtesy of the DILG. The inset photo with a girl is from \"The Innocent\" by Mr. Jason Cardente. The boy filling water bottles is from \"Water for Drinking\" by Mr. Dan Ong. Some elements in the originals may have been altered for purposes of the design.  \nForeword  \nPurpose of this Manual  \nThis RURAL WATER SUPPLY DESIGN MANUAL is the first of three related volumes prepared for the use of prospective and actual owners, operators, managements, technical staff, consultants, government planners and contractors of small Level III and Level II water supply systems in the Philippines.  \nIts purpose is to introduce the key concepts and considerations involved in the design of small waterworks facilities for Level II and III systems.1 For the technical persons, hopefully it will facilitate their work by providing them with a ready resource reference for their everyday use. For the non-technical readers, such as the many who are involved in the management and operation of small water supply systems, hopefully it will be an aid in understanding the design process, giving them a basis for participating in decisions that would enable them to avail more usefully of the services of the technical consultants and contractors they must deal with.  \nOverall, the local and international partners who cooperated in making these Manuals possible hope that they will help the participants in the rural water supply sector to understand better the nature of the water supply business, its responsibilities to the stakeholders, and the role of the government agencies and regulatory bodies that seek to help them operate sustainably while protecting the consumers.  \nOn the Use of the Manual  \nThis RURAL WATER SUPPLY DESIGN MANUAL and the companion volumes in the series can at best serve as a general reference and guide. As they refer to the information, recommendations, and guidelines contained in them, readers are urged to consider them always in relation to their own specific requirements, adapting and applying them within the context of their actual situation.  \nEven as they refer to this Manual for information, its users are advised to consult with qualified professionals – whether in the private sector, in the local governments, or in the regulatory and developmental agencies concerned with the water sector – who have had actual experience in the construction, management, operation, maintenance, and servicing of water supply systems and utilities – including those other professionals who can help them in the financial, legal and other aspects of their small water supply business.  \n1 A few of the topics covered may also be relevant to Level I systems, which consist of a single well or pump serving a limited number of beneficiaries at source. 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