Water & sanitation handbook

Programme Division
Water, Environment and Sanitation Technical Guidelines Series - No. 2
A Water HandbookA Water Handbook
Towards better programmingTowards better programming
Technical Guidelines Series

Water, Environment and Sanitation Technical Guidelines
Towards better programming
A water handbook
United Nations Children’s Fund
(UNICEF)
1999

WATER HANDBOOK UNICEF
Water, Environment and Sanitation Technical Guidelines Series - No. 2
A Water Handbook
© United Nations Children’s Fund
3 United Nations Plaza, TA-26A
New York, N.Y. 10017
1999
A publication of UNICEF/Programme Division,
Water, Environment and Sanitation Section
(ID No. PD/WES/99/1)
This Water Handbook is the second of the Technical Guidelines Series prepared
by the Water, Environment and Sanitation Section, Programme Division, UNICEF.
Titles of all publications in this series are printed at the end of this Handbook.
Any part of this document may be freely reproduced with the appropriate
acknowledgment. Spanish and French versions of this document will also be
produced.
For further information please contact:
The Chief
Water, Environment and Sanitation Section
Programme Division, UNICEF
3 United Nations Plaza, TA 26-A
New York, N.Y. 10017.
Tel (212) 824-6664
Fax (212) 824-6480
e-mail: wesinfo@unicef.org
Web site: www.unicef.org

Preface
UNICEF Programme Division is pleased to present the Water Handbook - part of the
guidelines series on water, environment and sanitation. The Water Handbook is the result of
wide collaboration within UNICEF, and provides a broad overview of state-of-the-art
programming for water management, protection and supply.
The original programme guidelines for WES were produced more than ten years ago and
stressed what was at that time UNICEF's principal activity in the sector: drilling and
handpump technologies. These programming areas remain important and thus continue to
be covered in the new Water Handbook. However, in recent years other priorities have
emerged from lessons learned over the decade that have changed programming in the
sector. These new areas are reflected in this handbook - and in the guidelines series as a
whole - and include the importance of community management of water resources and the
need for cost-effective solutions and, perhaps most importantly, the need to promote
commitment and involvement in sectoral issues from the highest levels of government to the
smallest communities .
This handbook continues to be, above all, a practical guide for implementing the operational
strategies outlined in the Board-approved WES Strategy Paper (UNICEF Strategies in
Water and Environmental Sanitation - E/ICEF/95/17). As such, it is an important tool for
field professionals implementation of UNICEF Programme Priorities and the acceleration of
progress towards the goals established at the World Summit for Children.
We in Programme Division look forward to receiving your comments on this publication in
particular and suggestions and ideas on how to improve our support to WES interventions
in general.
Sadig Rasheed
Director, Programme Division
UNICEF New York

ii
Acknowledgments
This publication is the product of broad consultation and collaboration. UNICEF
Programme Division would like to particularly acknowledge the contributions of Greg
Keast and Ken Gray who collaborated in the creation of this document.
The following people provided contributions, in many forms, that were invaluable in
producing this handbook: Colin Davis, Brendan Doyle, Gourisankar Ghosh, Colin Glennie,
Christian Hubert, Shamshul Huda, Silvia Luciani, Luzma Montano, Marjorie
Newman-Williams, Ashok Nigam, Mary Pigozzi, Dipak Roy, Jane Springer, Rupert Talbot,
Vanessa Tobin, Phillip Wan.
A number of existing documents have influenced this work, and have been drawn from for
both ideas and examples. Thanks go to the many UNICEF country offices that provided
valuable background material for the document.
Finally, to all those too many to name whose contributions have made this a better
publication, Programme Division extends its grateful thanks.

iii
Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
List of Boxes, Tables and Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Notes on the use of this Handbook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
1. Water and Sustainable Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
A. Water Resources: A New Focus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
B. Community-Based Management of the Water Environment . . . . . . . . . . . 2
C. Water and Health . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
D. Other Benefits from Improved Water Availability . . . . . . . . . . . . . . . . . . . 9
E. Reaching the Unreached . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
F. Summary Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2. Community Participation and Management . . . . . . . . . . . . . . . . . . . . . . . . . 14
A. Community Participation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
B. Improving Community Involvement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
C. From Community Involvement to Community Management . . . . . . . . . . 19
D. Training for Improved Community Management . . . . . . . . . . . . . . . . . . . 26
E. Summary Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3. Cost and Cost Effectiveness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
A. The Cost of Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
B. Improving Cost Effectiveness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
C. Summary Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4. Water Technologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
A. Design Options, Constraints and Choices . . . . . . . . . . . . . . . . . . . . . . . . 37
B. Sources of Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
C. Groundwater Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
D. Pumping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
E. Storage and Distribution Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
F. Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
G. Summary Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

iv
5. Maintenance of Water Supply Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
A. Institutional Arrangements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
B. Technical Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
C. Summary Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Bibliography of Water and Related Environment Books and Reports . . . . . . . . . . . 68
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
List of Boxes, Tables and Figures
Boxes
The Dublin Statement on Water and Sustainable Development (excerpts) . . . . . . . . . . . . 1
Freshwater Management and Attitudinal Change: Emerging Elements of New Thrust with
Old Roots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Guinea Worm Disease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
40 Billion Hours Lost Each Year in Africa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Urban Water Supply: the Guatemala Experience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Community Management in Slums: The Tegucigalpa Model . . . . . . . . . . . . . . . . . . . . . 18
Making Community Management Happen: Lessons from Experience . . . . . . . . . . . . . . . 23
Ten Key Steps to Enhance the Involvement of Women in Water Supply Programmes . . 24
Reducing Drilling Costs in Sudan and Zambia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Women and Rainwater Harvesting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Surface Water Tastes Better . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
UNICEF Guidelines for Handpump Selection and Standardization . . . . . . . . . . . . . . . . . 52
The VLOM Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
What is a VLOM Handpump? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Tables
Water and Health: the View from 1966 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Disease Transmission Mechanisms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Potential Relation between Water and Sanitation Interventions and Morbidity from Selected
Diseases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Big Rigs vs. Small Rigs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Regional Differences in the Cost of Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Well Construction Technologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Handpump Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Indicative Cost Comparison of Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

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Figures
Number of Cases of Dracunculiasis by Year . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Water Supply Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Rural and Urban Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Unit Cost of Handpump-Equipped Borewells in Sudan . . . . . . . . . . . . . . . . . . . . 35
Roof Catchment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Sub-surface Dam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Spring Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Hand-drilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Portable Drilling Rig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Truck-mounted Drilling Rig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Available from UNICEF, PD/WES, E-mail: wesinfo@unicef.org1
vi
Notes on the use of this Handbook
The Water Handbook is part of a series of modules which were written with the objective of
assisting UNICEF programme and project officers in the operationalization of the new
WES strategies as presented in: UNICEF Strategies in Water and Environmental
Sanitation. Although UNICEF POs working with water-related programmes at the country
and sub-country level are the primary target of this handbook, it is also useful for
Representatives and other UNICEF staff members, in addition to government and NGO
partners.
Ideally, UNICEF Strategies in Water and Environmental Sanitation should be read prior1
to using this handbook.
Before proceeding to a specific section of interest in this handbook, Section 1 Water and
Sustainable Development should be read first. For the reader interested in gaining a general
broad understanding of the issues pertinent to UNICEF-assisted water programmes, the
entire handbook should be read. For other readers, any individual section can be read as
each section is self-contained and can stand on its own.
At the end of each section a set of a summary points has been provided to assist the reader
in reviewing the section or of getting an idea of the contents of the section.
Text boxes have been used extensively throughout the handbook. The boxes contain
excerpts from case studies or other documents related to the section material and are
intended to further illustrate or broaden the material presented in the body of the handbook.
Primary references for additional reading are presented in the bibliography at the end of the
handbook. Full details of all references in the text can be found in the bibliography.

1
The Dublin Statement on Water and Sustainable
Development (excerpts)
Scarcity and misuse of fresh water pose a serious and
growing threat to sustainable development and protection
of the environment. Human health and welfare, food
security, industrial development and the ecosystems on
which they depend, are all at risk, unless water and land
resources are managed more effectively in the present
decade and beyond than they have been in the past...
The Conference participants call for fundamental new
approaches to the assessment, development and
management of freshwater resources, which can only be
brought about through political commitment and
involvement from the highest levels of government to the
smallest communities. Commitment will need to be
backed by substantial and immediate investments, public
awareness campaigns, legislative and institutional
changes, technology development, and capacity building
programmes. Underlying all these must be a greater
recognition of the interdependence of all peoples, and of
their place in the natural world.
From: International Conference on Water and the
Environment: Development issues for the 21st century,
Jan. 1992, Dublin, Ireland (World Meteorological
Organization, publisher)
1. Water and Sustainable Development
A. Water Resources: A New Focus
The focus of activities in the drinking water sector since the 1960s has been the provision of
safe and reliable sources of water to unserved segments of the population. The need for
water was often urgent, and many UNICEF country water programmes emerged from
drought relief programmes. Initially, the primary problem faced by many domestic water
supply programmes was overcoming limitations in the availability of water, and the solution
was predominantly technical in nature. If there was no acceptable surface water available,
new technology was introduced (or existing technology from other sectors - such as the
petroleum industry - was adapted) to tap deep groundwater aquifers. When this was
achieved, the focus shifted to making the technologies more efficient and cost effective, and
more appropriate to national and regional conditions and capabilities. Although work in this
area is far from completed (drilling and handpump technologies continue to be improved,
and alternative technologies such as rainwater harvesting and filtration of surface waters
continue to evolve), UNICEF programme emphasis is tending to move away from
technology and towards software
aspects of water supply. Much of the
work in this area has focussed on
maximizing health and other benefits
from water through the synergistic
integration of water supply with
sanitation, health and education
programmes, and striving for long term
self-sufficiency through the
empowerment of communities to
manage their own water supply schemes
(see subsequent sections in this module).
In recent years some of the gains made
in the provision of safe water are being
threatened by over-extraction,
competition and environmental
pollution. In many regions throughout
the developing world, sources of water
traditionally available in abundance for
domestic use is now disappearing. As
technological advances were being made
in the drinking water sector, parallel
advances were being made in the
irrigation sector. These advances,

Excerpted from the outline of the presentation “Community-Based Management of the Water Environment”2
to the World Bank, by Gourisankar Ghosh, Chief, Water Sanitation and Environment Cluster, UNICEF. December
1996.
2
together with the increasing demand to produce more food and cash crops from the same
land has led to massive programmes of intensive irrigation in many countries. While the
technology has allowed drinking water to be pumped from the ground through a borewell
and handpump at the rate of thousands of liters per day, the same technology has provided
the means to pump hundreds of thousands of litres per day from irrigation borewells (or
from surface water sources, whose depletion ultimately affects the groundwater aquifers).
Parallel to the over-exploitation of water is an alarming increase in the pollution of water
from industry and agriculture, and from other sources. As a result, some handpumps which
once provided clean water are now abandoned because of quality problems and people are
forced to return to ponds and streams (which are also likely to be more polluted than they
were 10 or 20 years ago) for their drinking water needs.
In the coming years, the challenge in the sector will be to promote and facilitate the
management of water resources to achieve an equitable balance between competing
consumers. Work in this area will not be purely technological in nature (although water
management methodologies are assisted by technologies such as artificial recharge of
aquifers, groundwater mapping techniques, rainwater catchment, etc.): they will be more in
the social, economic and political realms. And, as has been the case for other activities and
programmes, the focus will be on the management of water resources by the community
itself. As communities acquire the tools and knowledge to manage local water resources,
they will increasingly have a stronger voice in influencing factors and events outside of the
community which affects the community's water balance.
B. Community-Based Management of the Water Environment 2
Integrated water management can only be possible if the community is empowered through
decentralization and is free to make decisions on their natural resource management. The
four main important resources are land, water, livestock and forest which form the village
ecosystem. Without a balanced management of all of these four basic resources, the
development process cannot be sustainable. The development programmes must be built
around a sound land-water-forest-livestock oriented model with decision making at the
micro-level.
Rural water supply should not be treated as a mere service delivery process but as a step
towards household water security. Water security requires household, community and
national actions to protect and preserve water sources, to use water as a scarce resource
and to ensure its equitable supply. Investment in the capacity building of the community in
planning, development, implementation and maintenance of the water supply project is one
of the first steps toward sustainable development. To analyze the complete socioeconomic

3
impact of a water supply, sanitation and hygiene project, the full impact should be taken
into consideration. They include less disease, better education for children (particularly
girls), better nutrition for mothers and children, time energy saving for women and secure
livelihoods. To achieve maximum impact through water and sanitation interventions in rural
communities there is a need for multilevel and intersectoral actions.
The UNICEF conceptual model for water and environmental sanitation (see UNICEF
Strategies in Water and Environmental Sanitation) identifies the conditions that have a
bearing on achieving the desired outcome at three levels---structural, underlying and
immediate. The structural conditions relate to natural, human and economic resources. In
order to influence underlying conditions, it is necessary to have social and gender equity in
the availability, access and control of these potential resources. The resources need to be
organized to cultivate an empowering environment by promoting and supporting self-
motivation, building skills, communicating knowledge and aligning social service systems.
The only way the goal of sustainable development can be achieved especially in fragile eco-
regions is through deepening democratic values and participation at the grassroots level.
Institutional decentralization along with empowerment will ensure the survival base of the
rural economy and will promote growth.

4
Freshwater Management and Attitudinal Change: Emerging Elements of New
Thrust with Old Roots
For centuries water resources have been managed by communities themselves and they have sustained
those living on it. What is now different is that there is increasing pressure on these resources as a
result of advances in technologies for their rapid and widespread exploitation, population growth,
pollution, and emphasis on increasing consumption rather than conservation. In many parts of India, it
was seen that in the absence of these new factors, there was a natural ecological balance that seemed to
prevail. However, with the introduction of unregulated technology and market forces in the productive
sectors, this balance has come under strain. In the past, many communities had found ways and means
of storing and conserving water through catchment protection, small check dams, and growing the
types of crops that they could with the available supply of freshwater resources from surface sources.
There are clearly many lessons to be learned from the old paradigm on sustainable utilization of
freshwater resources. While most communities are well aware of the possibilities and constraints that
they face, what is far less within their control is those imposed from outside and other levels. In the
design of strategies and actions within the new paradigm which has old roots, it will be necessary to
learn lessons at the micro level which will be specific to particular eco-regions. It is from these
lessons that there can be policy formulation and integration at higher levels and across sectors. Thus
for example, some of the lessons that are emerging through a focus on freshwater issues in India in the
case studies being sponsored by UNICEF and WWF relate to:
< technology choices and support to technology development - promotion of catchment
protection, bunds, small check dams, storage reservoirs, rainwater harvesting - in addition to
borewells;
< community awareness of its freshwater resource potential and sustainable rates of extraction;
< community mechanisms, including building institutions and capacities at the local level to
manage freshwater resources;
< advocacy and actions at higher levels to influence policy making towards sustainable
management of water resources at the community level;
< financing of actions needed at the community level;
< actions and market signals for regulating and ‘pricing’ water resources for sustainability;
< linkages between agricultural prices, price of water and rates of extraction;
< mitigating the impact of fertilizers and pesticides on the soil and use of more environmentally
products;
< more efficient utilization of water for irrigation;
< pricing water for irrigation, manufacturing and drinking and designing and using appropriate
mechanisms for this purpose;
< defining legal and property rights and issues on ground water and riparian rights for surface
water;
< defining and enforcing standards for waste water discharge by manufacturing processes and
charging and recovering costs of treatment.
From: Towards Sustainable Financing of Water Supply and Sanitation Through Community Based
Management of the Water Environment, A. Nigam, UNICEF, 1996

5
C. Water and Health
Historically, the principal justification for water supply projects has been to improve health,
and the link between water and health has long been understood. In the 1960s and 1970s,
most water supply projects focussed on the improvement of water quality which, in itself,
was expected to eliminate many of the developing world's most prevalent and debilitating
diseases, as illustrated in the table below.
Water and Health: the View from 1966
Estimated Potential Reduction of Water-related Diseases
in East Africa
Diagnosis Percent Reduction
Expected if Water
Supply were Excellent
Guinea Worm 100
Typhoid 80
Schistosomiasis 80
Trypanosomiasis 80
Trachoma 60
Dysentery 50
Diarrhoea of the Newborn 50
From: "Bulletin of the World Health Organization" , Vol. 63,
No. 4, September 1985
While there were some successes registered with this approach, experience began to
suggest that the implementation of purely technical measures to improve the quality of
water did not go nearly far enough, that, for example, a safe source of water will not
automatically ensure that there will be a 50 percent reduction in diarrhoea (which is among
the biggest killers of children worldwide).
Near the beginning of the International Drinking Water Supply and Sanitation Decade
(IDWSSD), more emphasis began to be placed on the different disease transmission
mechanisms and their interruption (see table below). In addition, studies started to suggest
that increasing the quantity of water available for domestic and personal hygiene was at
least as important - or more important - than improving the quality of water. And the
quantity of water used by consumers is directly related to the distance to the water source,
thus reinforcing the need to have water points as close as possible to households.
The importance of sanitation was also now recognized. In practice, however, the majority

6
of resources continued to be channeled towards water supply alone.
Disease Transmission Mechanisms
Transmission Diseases (examples) Preventative Strategy
Mechanism
Water-borne Diarrhoea, Cholera, Typhoid - improve water quality
- prevent casual use of other unimproved sources
Water-washed Roundworm (Ascariasis), - improve water quantity
Trachoma, Typhus - improve water accessibility
- improve hygiene
Water-based Bilharzia (Schistosomiasis), - decrease need for water contact
Guinea worm (Dracunculiasis) - control snail populations
- improve quality
Water-related Malaria, - improve surface water management
Insect Vector River Blindness (Onchocerciasis), - destroy breeding sites of insects
Sleeping Sickness (Trypanosomiasis) - decrease need to visit breeding sites
- remove need for water storage in the home or
improve design of storage vessels
From: Evaluation for Village Water Supply Planning, Cairncross et al., 1981
As the IDWSSD progressed, further studies suggested that water supply, even when
combined with sanitation, was relatively ineffective as a health improvement measure
without a well-integrated hygiene education programme.
Still, however, most projects continued to emphasize water supply alone with sanitation and
hygiene education as relatively minor and under-funded components. The main reason for
this was that most sector professionals were engineers and hydrogeologists with little
experience that could be applied to the design and implementation of meaningful sanitation
and hygiene education programmes. In addition, health impact studies yielded few definitive
conclusions that could "prove" in quantitative terms the relative importance of water,
sanitation and hygiene education. Even to date, comprehensive and conclusive health impact
studies of water, sanitation and hygiene education have proven to be notoriously difficult to
design and interpret, and expensive to implement.
In the 1990s, experience from many projects, and the cumulative results from an increased
number of health impact studies (taken together to compensate, partially, for the
inconclusiveness of most individual studies), have led to a consensus among most sector
professionals that:
C isolated water supply interventions are not effective in the prevention of disease;
C sanitation alone has a larger impact on health than does water alone;
C hygiene education, together with sanitation, has more of an impact on the reduction

7
of diarrhoea than does water (because many of the causes of diarrhoea are not
water-borne);
C improvements in the quality and quantity of water in communities continues to be
important for public health, if implemented together with effective sanitation and
hygiene education programmes.
As a consequence of this thinking, sanitation and hygiene education are now becoming at
least as important as water supply in UNICEF-assisted programmes, and resources are
being allocated (and appropriately qualified professionals posted) accordingly. Water
continues to be important in public health programmes as a component of integrated WES
programmes, and as a necessary precondition to all hygiene education programmes (which
are impossible without water) and most sanitation programmes (especially in societies
where water is culturally necessary for excreta disposal).
Potential Relation between Water and Sanitation Interventions and Morbidity from
Selected Diseases
Intervention
Improved Water for Water for Human
Drinking Domestic Personal Excreta
Water Hygiene Hygiene Disposal
Ascariasis + ++ - ++
Diarrhoeal Diseases + ++ ++ ++
Dracunculiasis ++ - - -
Hookworm Infections - - - ++
Schistosomiasis - ++ ++ ++
Trachoma - + ++ -
From: UNICEF, Planning for Health and Socio-Economic Benefits from Water and
Environmental Sanitation Programmes Workshop, 1993, presentation by S. Esrey

Number of Cases of Dracunculiasis by Year
1989 - 1998
892
624
423
376
221
165
129
153
78 79
Year
89 90 91 92 93 94 95 96 97 98
0
200
400
600
800
1000
8
Guinea Worm Disease
Guinea Worm disease (Dracunculiasis), unlike all other diseases mentioned in this
chapter, can be prevented exclusively through water interventions. The disease is
transmitted by drinking water that contains a small crustacean infected by a parasitic
worm. Thus, the principal means of prevention is through ensuring access to safe
sources and by motivating people to use the safe sources exclusively.
Significant progress has been made in the eradication of the disease since the 1980s.
In several countries (e.g. Pakistan, Kenya, Yemen) the number of cases have been
reduced to zero through the concentrated efforts of governments, multilateral
agencies (including UNICEF) and other agencies and institutions. All remaining
endemic countries are in Africa, and the majority of cases in Sudan.
(Source: CDC, Guinea Worm Wrap-Up No. 89, April 19, 1999)

9
40 Billion Hours Lost Each Year in Africa
Estimates indicate that some three hours per household
per day are being lost to water hauling by those rural
households in Africa which do not have access to a
minimum level of service such as a hand-dug well or a
handpump-equipped borehole. Some 258 million
people lack access to improved water in rural areas of
Africa today; these people comprise about 37 million
households. At three hours per day, 365 days a year:
40,515 million (40 billion) hours are lost annually to
this necessary but unproductive chore, largely
undertaken by women and girls. This time could
otherwise be used for activities such as child care,
education and agricultural production.
(Adapted from UNICEF, WATERfront, Issue 2)
D. Other Benefits from Improved Water Availability
There are a number of potential benefits to improved access to water supply, in addition to
the reduction of disease. The reasons that many communities give for placing a high priority
on improved water supply usually relate to benefits other than health. These benefits are of
particular importance to women. A closer, cleaner source of water can produce immediate
and far-reaching improvements on women's lives.
Convenience
Most people, when identifying improved access to water as a priority, are thinking of
convenience. Everybody wants water as close as possible to their home, simply because it is
more convenient. As such, convenience is as important a consideration as health benefits. In
some societies and situations, convenience is also related to the security of women: water
closer to home can minimize the chances of abduction or assault.
Time Saved
Women and girls can spend many hours a day collecting water from distant sources and
thus the time saved by having a safe water source closer to the household can be very
significant. The time saved is used for much needed leisure or, possibly (but not necessarily)
activities relating to improved child care, or economic production. Less time spent fetching
water is one less possible excuse for not allowing girls to attend school, or in some extreme
cases, even to marry.
Energy Saved
Studies have shown that women who
walk long distances to collect water can
burn as much as 600 calories of energy
or more per day, which may be one
third of their nutritional intake. Closer
sources of water can thus improve the
nutritional status of women and
children (and hence health and well-
being).

10
Money Saved
In many communities, especially in poor urban areas, households continue to have to buy
water from vendors, often at exorbitant rates. Such direct financial costs can absorb up to
30 percent of total household cash income. Measures that improve the availability of water
reduce its cost and are therefore of direct benefit to families, and particularly to women,
who are often responsible for finding the funds to pay for water.
Prevention of Injury
When girls are forced to carry heavy loads of water over large distances, there is a danger
of lasting spinal column and pelvis injury and deformations. Closer water sources minimize
this.
Agricultural Use
When water supplies are inadequate for domestic use, they are often also lacking for
irrigation, food processing and the rearing of livestock. It has been found that some of the
increased quantities of water made available through water supply improvement schemes
are in fact used for such "other" purposes, to which the community attach high priority.
As an "Entry Point"
Water supply is often a high priority for communities. In addition, water supply
improvements are very tangible and, when well organized, may represent the first occasion
when a community has been truly mobilized to cooperative action. In such cases, the
programme sets a valuable precedent and can indeed serve as a "leading edge" for further
community-based social and economic development. A well-prepared water programme
provides experience in the key elements of community participation: community discussion
and decision making, participation in planning, contribution of labour and local resources
for construction, arrangements for protecting the installation from pollution, and community
responsibility for maintenance. In Zambia, initial UNICEF involvement in a drought relief
programme led to the more comprehensive and highly successful WASHE programme that
now includes hygiene, sanitation and environment components, and has become the
standard with government and other donor partners.
It should be noted that water is not always the highest priority for communities, and thus it
can not always be used as an entry point. In such cases, another programme intervention
(like a community health post), may be more appropriate and effective as the lead
programme.

42
61 71
0
25
50
75
100
Percentage (%)
1980 1990 1994-
96
Water Supply Coverage
(Developing Countries excluding CEE-CIS)
11
Source: WHO End of Decade Review; UNICEF/WHO Joint Monitoring Programme; Implementing the 20/20
Initiative (UNDP, UNESCO, UNICEF, WHO, WB)
E. Reaching the Unreached
During the IDWSSD, approximately 1.2 billion people gained access to improved water
supply. While this was a tremendous achievement, in 1990 one third of the developing
world's population - 1.3 billion people - still did not have access to a safe water source.
According to data from both the WHO/UNICEF Joint Monitoring Programme and
UNICEF MICS (multi indicator cluster surveys), by mid-decade the coverage rate had risen
above 70%. While this represents a significant increase in coverage since 1990, much work
remains to be done if the goal of safe water for all is to be reached. While achieving
universal coverage is a significant challenge, an even greater challenge is sustaining the
gains made to date through community maintenance of water systems and community
management of freshwater resources.
Although nominal coverage in urban areas is better than in rural areas (as shown in the
figure), due to the difficulties of collecting de-segregated data that distinguishes between
poor urban areas and richer urban areas such data does not illustrate the whole picture. In
fact, as cities grow, increasingly "the unreached" are living in slums and peri-urban areas.

Rural Coverage
Served
60%
Unserved
40%
Urban Coverage
Served
88%
Unserved
12%
12
Urban Water Supply: the Guatemala Experience
Due to the war in the countryside and other factors, the slum population of Guatemala City has grown in
recent years to one million people, a number which was overwhelming the city's municipal services. A very
small proportion of dwellings have house connections and there are few public standpipes - many people are
forced to purchase water from private traders at a cost of over 25 times that of the water supplied through the
municipal network. With a programme initiated by the Inter-institutional Commission for Marginal Urban
Areas (COINAP) and assisted by UNICEF, a community cooperative in the slum of El Mezquital succeeded
in providing water to over 2,000 families through the construction of a local water system. Funds collected
from the beneficiaries will be used to operate, maintain and expand the system, or for other community
projects. There are three keys to this successful model: commitment to the methodology of community
participation; coordination among a variety of governmental and non-governmental institutions with
experience in the relevant techniques and skills; and the presence of a community organization willing to
collaborate in improving their own local conditions.
From: Improving Water and Sanitation through Urban Basic Services Programme in Guatemala: A Case
Study, UNICEF WATERfront, Issue 7 (May 1995)
This accelerating trend will challenge UNICEF country programmes to give increasing
attention to ways of meeting the water supply needs in these areas. In some countries
(notably in Latin America - see the example below and elsewhere in this handbook),
UNICEF already has gained a wealth of experience in urban water projects which can be
applied successfully by other country programmes. Country programmes can also draw on
their own experiences in rural areas - many methodologies and technologies successfully
used in rural areas (like community based handpump maintenance programmes for example)
can be modified and applied in urban areas as well.
Water Supply Coverage
Rural and urban: 1994-1996
Sources: UNICEF/WHO Joint Monitoring Programe; and UNICEF MICS

13
F. Summary Points
‚ due to over-pumping and increased pollution, the protection and management of
freshwater resources is rapidly becoming the overall sectoral priority
‚ freshwater management will be most effective if carried out by communities
‚ water interventions are an important component of public health programmes but
only if integrated with hygiene education and sanitation interventions
‚ water interventions are justifiable solely on the basis of convenience, but additional
benefits can also result
‚ approximately 25% of the developing world's population still do not have access to
a safe source of water
‚ there is an accelerating trend of growing unreached populations in slums and peri-
urban areas

This whole section adapted from Sessions 10 to 13 of the WES Training Package, 1992, WES Section, New3
York
14
2. Community Participation and Management
A. Community Participation 3
Community participation arose as a concept in the mid-1960s. It was not adopted by the
IDWSSD until the mid-eighties after it became apparent that governments and donors could
no longer afford totally centralised operation and maintenance systems for water and
sanitation. Planners began to realize that in order to share the responsibilities for
maintenance, beneficiaries or users would have to be involved in some way in the on-going
maintenance of their own community systems.
It is now realized that if communities are expected to take responsibility for maintenance,
they must also be involved in planning and implementation of projects from the initial
stages. They must develop a sense of "ownership" and understand that maintenance is
essential, and is a community responsibility.
Communities should be perceived as informed consumers, clients and managers, capable of
making choices as to the type of services they have the capacity to provide rather than
passive receivers. Communities must also acquire management and organisation skills with
leadership capable of defining tasks and managing facilities. It should be recognized that
many communities may already have considerable management and organizational skills.
Central agencies responsible for water and sanitation must change from "benefactors" who
make all the decisions to "facilitators" who enable communities to make their own
decisions. Agencies must learn to be responsive to consumer-client demands.
Self-help activities in the construction phase are often ambiguous, calling for analysis on a
case-by-case basis. Some projects mention voluntary labour and contributions in cash or
kind as a cost saving element. This approach can increase local pride and commitment, offer
training possibilities and stimulate proper use and maintenance. However some managers
maintain that private contractors are more efficient as they avoid delay, increased costs,
over-burdening the community and poor construction leading to frequent breakdowns.
There is also a temptation for governments to expect too much from poor communities.
Self-help should not be used as an excuse to avoid giving poor communities a fairer share of
tax revenues.

Whyte, A. Guidelines for Planning Community Participation Activities in Water Supply and Sanitation4
Projects, WHO, Geneva. Offset Publication No. 96. 1986.
15
A classification of different types of community participation, developed in 1981 , is listed4
below:
1. consultation
2. a financial contribution by the community
3. self-help projects by groups of beneficiaries
4. self-help projects involving the whole community
5. community specialised workers
6. mass action
7. collective commitment to behaviour change
8. endogenous development
9. autonomous community projects
10. approaches to self-sufficiency
A discussion follows describing issues associated with each classification.
Consultation
Consultation is a basic means of giving communities some voice, of involving them in
decision-making. Its main rationale is to ensure that projects or programmes introduced by
outside agencies are adapted to meet community needs as well as to avoid difficulties in
implementation. Consultation may involve:
! consultation with community representatives or leaders only. Such
consultation does not amount to real community participation unless the
decisions formally made by representatives or leaders are the result of wide
consultation and consensus within the community, and unless the community
is involved in decision-making on significant aspects of the project.
! consultation with all sections of the community. This involves ascertaining
the view of those sections of the community which may normally be
excluded form decision-making (women, certain ethnic minorities or low
caste groups, the poorer sections), whose interest may not be genuinely
represented in the existing processes of decision-making in the community.
The rationale is to ensure that projects meet their needs also. This is not
always easy, and there are differing views on how important broad
involvement is.
A Financial Contribution by the Community

16
Cash collection made by and within the community, generally prior to or at the time of
implementation of a project, usually as a contribution to capital construction. Excluded, as
not really constituting community participation, are cases which amount to a payment by
individual families for service, even when it is an advance payment.
Self-help Projects by Groups of Beneficiaries
In these projects a specific group of local inhabitants contribute their labour (and perhaps
other inputs) to its implementation, while there is also the assistance of an external agency.
Those who contribute will be recompensed by reduced fees for the services they receive
while non-members pay more.
Self-help Projects Involving the Whole Community
Projects in which every family in the community is expected to make a contribution (usually
in labour), while there is also an input from an external agency. Food-for-work projects may
be included here, though the element of community participation may be considered slight if
it consists only of labour which is paid in cash or kind.
Community Specialised Workers
The training and appointment of one or a few community members on a voluntary basis to
perform specialised tasks (e.g. as community health worker, or operator of a community
water supply system). Training and technical supervision are carried out by an external
agency but some form of community authority is usually also exercised over specialised
workers.
Mass Action
Collective work in the absence of a major input from an external agency. Often such actions
are directed at environmental improvements (e.g. to drain waste water).
Collective Commitment to Behaviour Change
Cases where a community makes a collective decision to change customs or personal habits
and collective social pressure is exercised for the realization of such changes. Examples
range from penning of domestic animals to construction and use of latrines, or to the
reduction of excessive expenditures in connection with weddings, funerals, etc. While
changes of behaviour may occur in other ways, community participation is involved when
an explicit decision is collectively taken.

17
Endogenous Development
Cases in which there is an autonomous generation of ideas and movement for the
improvement of living conditions within the community as opposed to stimulation by
outside agents. The community may, however, have recourse to external agencies to help
with implementation, or indeed press for such help. On the other hand, where this is simply
pressure for services to be provided, it hardly qualifies for the term "community
participation," though in a wider sense this is an example of political participation.
Autonomous Community Projects
Projects where an external resources are paid for by the community with funds raised
internally, including the hiring of outside expertise or professional staff. Such projects are
therefore under community control.
Approaches to Self-Sufficiency
Projects in which the objective is to satisfy local needs as far as possible by using local
materials and manpower directly, not by purchasing good and services from outside. "Self-
reliance" is also sometimes understood in these terms.
B. Improving Community Involvement
Information Gathering
In order to plan effectively for community participation, a considerable amount of
community information must be gathered by the agency.
Firstly, there is the information about a community which it may be useful to possess before
any approach is made to that community in order to ensure it is made in an appropriate way.
Secondly, there is the information which may be required to determine if community
conforms to agency selection criteria, or to determine if special subsidies are required.
Thirdly, information is required by supporting agencies in planning and design of the
projects. Most of this can be provided by the community during consultation but will need
to be supplemented with information gathered by staff in informal contact with community
members.

18
Community Management in Slums:
The Tegucigalpa Model
In Tegucigalpa, the capital of Honduras, a special unit
(UEBM) was created by the National Water and
Sewerage Service (SANAA) specifically to serve the
rapidly expanding poor urban communities. With
support from UNICEF, UEBM provided safe water to
45,000 people in 25 low-income neighborhoods in less
than four years. All of the operation and maintenance
costs of the systems are recovered from the beneficiaries
as well as some of the capital and future replacement
costs through monthly water billing and a special
revolving fund. The success of the project has largely
been attributed to the fact that UEBM did not act as a
service provider, but as a facilitator encouraging
community participation and management in its projects.
From: The Tegucigalpa model: Water and sanitation
through community management, UNICEF
WATERfront, Issue 1
Consultation
Consultation means involving communities to some degree in decision making concerning
proposed projects. If a water supply and sanitation project is to achieve its health objectives,
facilities must be properly and consistently used and other hygiene-related behaviour must
change. Optimal use can be maximized by prior consultation with users concerning their
needs, and by devising a projects which meets the needs of the community as far as
possible.
Consultation to meet the users needs is
an essential form of community
participation. It should be present in all
water supply and sanitation projects.
The dialogue should achieve mutual
understanding through a dynamic
learning process for all those involved
rather than a simple exchange of
information and suggestions.
Dialogue between an agency and the
community will inevitably have an
element of negotiation. It should not be
forgotten in the rhetoric of cooperation
that communities will generally be
interested in obtaining the maximum
contribution or subsidy from support
agencies. This may well be the main
reason influencing a community's
preference for one technical solution
over another, or how a community plans to organize and contribute to a project.
Each water agency will have to balance its need for a degree of uniformity in a large-scale
programme with the community's need to have a real voice in decision making. One must
also consider how water and sanitation projects relate to broader primary health care or
developmental activities.

19
Administrative Arrangements
Community participation techniques require dialogue with community members in which
their ideas are treated as valuable contributions. These dialogues are conducted by lower-
level staff whose own social position may lead them to emphasize superiority of their
technical training. The solution may lie in developing a special cadre of
promoters/community development staff within a technical agency.
Representative Bodies in the Community
It is essential to consider which community groups are to be the focus of consultations and
will have responsibility for community actions.
Local authorities: While some consultation take place with local authorities as a
matter of course in the introduction of a new water supply or other facility, in many
countries local authorities work at levels considerably removed from that of the
ordinary villagers or low-income urban residents. Consultation with local authorities
cannot realistically be regarded as community consultation.
Development committees: Where they exist and cover an area which coincides with
that of the projected water or sanitary improvement, a development committee is the
obvious community focus for the project. A committee started for the
water/sanitation project may subsequently take on other functions. Development
committees are often founded with broad aims including that of health, raising
agricultural or other economic production. But it is precisely in the area of
communal services such as water and sanitation that they are often found to have
their greatest potential.
"Traditional" bodies: In some countries, traditional institutions - chiefs, councils of
elders - retain considerable authority. It may be expected that initial community
approaches will be made through them. In fact, it may be difficult for outsiders to
penetrate beyond the appearance of full harmony and unanimity presented by the
community's formal spokesmen. Yet, again, there may be undercurrents of dissent
within the community.
C. From Community Involvement to Community Management
In light of the Decade's experiences, terminology is needed which addresses communities as
not mere users or beneficiaries. Some now favour employing the word "clients". However,
even that term, rooted in the Latin word clinare ... to lean upon, can be misleading.
Dictionary definitions of "client" include: (1) person under protection of authority; (2)
person who engages a professional; (3) person served by or utilizing service of social

McCommon, C., Warner, D. and Yohalem, D. Community Management of Rural Water Supply and5
Sanitation Services UNDP/World Bank. WASH Technical Report No. 67. 1990
20
organizations. Perhaps terms such as "partners," "co-owners" or even "community owners"
deserve consideration in developing participatory models and community management
strategies for the 1990's.
According the 1992 IRC workshop on community management, "there is no fixed formula
for community management. It is an approach seeking to make the best use of resources
available within the community with support from government agencies, NGOs, the private
sector, and other communities. Relationships among the partners may change and evolve as
communities become better able to manage their own affairs. Some key characteristics are
common to all forms of community management, but no single model can adequately
encompass all the possible variations".
If real community participation and management are accepted as essential to the global
thrust toward universal access to water supply and sanitation, it must be recognized that
concepts of empowerment and equity cannot end at the water source. Traditional power
structures can be threatened by new pumps and latrines which benefit the poor.
Communities who learn to manage safe water will go on from there to make other demands
on the system, and to demand management of other aspects of their individual or
community lives. People can be motivated to participate and manage only up to a given
point in a given direction.
UNICEF-assisted programmes should be clear regarding the definition of community
management. Obviously, it is implied that communities should be more actively involved in
all aspects of programme development, including situation analyses, development of
programme strategies, monitoring, evaluation, and influencing management and
administration, including being able to expect timely responses to expressed concerns.
According to McCommon et al. , "the distinctive feature of community management is the5
nature of decision making and the locale of responsibility for executing those decisions.
Community management refers to the capability of a community to control, or at least
strongly influence, the development of its water and sanitation system. Community
management consist of three basic components:
! Responsibility: the community takes on the ownership of and attendant
obligations to the system.
! Authority: the community has the legitimate right to make decisions
regarding the system on behalf o the users.
! Control: the community is able to carry out and determine the outcome of
its decisions."

21
An emphasis should be placed upon establishing good communications between
professionals and communities facilitating closer dialogue and partnership, helping
governments to move from being providers to becoming promoters and facilitators.
According to McCommon et al., important preconditions for community management are
likely to include the following:
! "there must be community demand for an improved system;
! the information required to make informed decisions must be available to the
community;
! technologies and levels of service must be commensurate with the
community's needs and capacity to finance, manage, and maintain them;
! the community must understand its options and be willing to take
responsibility for the system;
! the community must be willing to invest in capital and recurrent costs;
! the community must be empowered to make decisions to control the system;
! they should have the institutional capacity to manage the development and
operation of the system;
! the community should have the human resources to run these institutions;
! there should be a policy framework to permit and support community
management;
! effective external support services must be available from governments,
donors, and the private sector (training, technical advice, credit,
construction, contractors, etc.)."
The benefits of community management should include the following (McCommon et al.,
1990):
! short term improvements in system performance such as greater use of water
and sanitation facilities, adoption of improved hygiene practices, and greater
community support for system maintenance;
! changes in support conditions: long term improvements in available
resources and complementary investments;
! long term impacts: anticipated health, social well-being, economic and
environmental quality changes.

22
The workshop held in The Hague, The Netherlands (1992) studied in depth seven case
studies from developing countries including Honduras, Guatemala, Cameroon, Yemen,
Indonesia, Pakistan and Uganda. The principal findings were the following:
Community Management goes beyond community participation and equips
communities to take charge of their own water supply improvements.
Some critical features distinguish community management from community participation
and are at the heart of successful community managed water systems.
! The community has legitimate authority and effective control over
management of the water supply system and over the use of the water.
! The community commits people and raises money toward the
implementation and upkeep of the water system. The link between the scale
of community contribution and the resulting sense of ownership is not yet
well understood, but the need for a significant contribution is well
established.
! Supporting agencies provide advice and technical support, but all key
decisions are taken with the community. This means that real choices must
be offered, backed by a full appraisal of all the resources needed for each.
! Development of people is a parallel goal with development of water.
Community management is "people-centered". Its success depends on the
user community and support agency staff acquiring new skills and
confidence in applying them. Special capacity-building techniques are
required.
! Local organisations for water management are in tune with existing
community decision making structures and ensure that the views of all
section of the community are reflected in management decisions. Strong
community leadership, or the continuous involvement of a charismatic
individual, has been shown to be a major factor in the success of many
community-managed water supplies. Women are known to be highly
influential in community-managed water supplies, though the influence is not
always apparent in organizational structures.

23
Making Community Management Happen: Lessons
from Experience
Successful community management does not happen by
accident. Projects and programmes must actively and
systematically pursue it as a goal, and create the right
conditions in which a self-reliant, community-based
approach can work. A study of 122 completed rural
water supply projects from around the developing world
revealed that the following factors positively contribute
to raising the level of popular participation:
C The establishment of clear project goals and
strategies, based on a consensus of agency and
community views
C A strong commitment by project managers to a
participatory process and willingness to
respond positively to community views
C Willingness by managers and supervisors to
listen to and respect the views of field based
staff
C The development of flexible project strategies,
with a high degree of decentralized control
C A balance between community and agency
decision making powers which favours the
community
C The extensive use of local knowledge and
existing forms of local organization
C Project approaches which fit comfortably into
existing social and cultural contexts
C The existence of a broader social and political
context which is conducive to popular
participation and control
From Appleton, B. (ed). The Role of Communities in
the Management of Improved Water Supply Systems,
Community Management Workshop Report, IRC, The
Hague.
Community Management involves a long-term and changing partnership between
communities and supporting agencies. It strengthens the capacity of each partner and
enables their combined resources to be used more effectively.
A community's partners in the
management of its water supply system
may include government agencies,
NGOs, the private sector and crucially,
other communities. Relationships
change as the community develops
greater capacity to manage its own
affairs and to choose for itself where to
acquire the support services it needs to
keep its water system functioning
reliably. Inter-community collaboration
can add a new dimension in terms of
both resource sharing and replicability.
The case studies include a wide variety
of community management applications
matched to particular cultural and
socio-economic settings. In Guatemala,
Pakistan and Indonesia, support from
national and international NGOs enable
communities to implement and sustain
cost-effective water projects and in
some cases to replicate those projects
through evolving community networks.
In Yemen, Honduras, Uganda and
Cameroon, government agencies
successfully transfer control of water
projects to communities while
enhancing their own performance and
status.

24
Ten Key Steps to Enhance the Involvement of Women in
Water Supply Programmes
The following steps can be taken by water agencies as a means of
advancing women's involvement:
C Orient male management and staff in how women's
involvement helps to realize project objectives
C Work with women field workers, both from the agency
itself and from other services and/or with local
intermediaries
C Discuss with local leaders and authorities why women
should be involved in the planning and management of
water services, and how this can best be achieved
C Inform women about project and programme meeting,
using a variety of different channels, and encourage
their participation
C Organize meeting at times and places suitable for
women to attend
C Make it easy for women to hear and to be heard at
meetings, by sitting them together in the main gathering,
not at the back, and by conduction meetings in the
vernacular or arranging translation
C Stimulate dialogue by presentation techniques, inviting
comments/questions/criticism, inserting discussion
breaks, and involving respected and representative
spokeswomen
C If the participation of women in general, or poor women
in particular, is difficult, organize separate meetings at
more convenient times and places
C Explain the tasks and the authority involved in system
maintenance, management, hygiene education, and
system finance before choosing local candidates;
discuss which roles are best performed by women and
who are the most suitable candidates
C Give training adapted to women's conditions and roles,
and include follow-up visits for monitoring and support
Source: C van Wijk, 1989, Community Management and
Sustainable Water Supply in Developing Countries, Mimeo,
IRC, The Hague
Community Management can
mean more widespread
implementation of sustainable
water supply systems.
In the past, community
management has often been
seen as an approach which
requires repeated time-
consuming activities in one
community at a time. The case
studies provide important new
evidence that successful
community management can
stimulate inter-community
activities which in turn foster
more rapid replication.
Community organizations can
combine to form associations to
share knowledge and
experience and build local
capacities to manage.
Community Management
means a new role for support
agencies as facilitators rather
than providers, demanding
new skills and offering greater
opportunities.
There is a powerful logic to
community management of
water supplies. The resource is
local, its use is local and its
effects are local. Nevertheless,
it has to be recognized that
there are genuine fears among agency staff (and at higher levels of government) that
empowerment of communities to manage their own systems may diminish the role of and
respect for water agency staff or conflict with national government priorities. In Cameroon,
Yemen, Uganda and Honduras, such fears have proved unjustified. Support for community
managed water supplies has brought more effectiveness and greater job satisfaction in the
implementing agencies while the community water management organization have remained
non-political.

25
Community management does not mean less work for agencies. It means a greater emphasis
on the development of supporting and enabling skills and less on routine management and
maintenance. This frees institutional, human and financial resources to enable agencies to
reach more communities. Government has a vital continuing role in establishing the policy
and legislative framework to enable community management to work. It also retains the
duty to protect water resources ant the environment and to maintain public health standards.
Benefits of community management can extend beyond water into other development
activities.
The skills and knowledge acquired in building a community's capacity to manage its water
system can become a stimulus for further community-led development. In Indonesia and
Honduras, access to a convenient water supply plus awareness gained in project self-
surveys led to the self-help construction of sanitary latrines and changes in hygiene
behaviour. In Guatemala, successful water development was followed by income generation
from coffee production which provided further support for the upkeep and extension of the
water system. In Pakistan, there are examples of water development following from other
community activities based on income generation, when the village organizing committee
acquired the skills and the resources to implement programmes based on its own priorities.
The scope for community management extends beyond rural water supplies.
Most current models for community management are based on rural experience. However,
successful community management is also being achieved in peri-urban areas with Honduras
being a good example. Further study is needed to establish the criteria which make
community management effective in peri-urban situations.
Conventional progress indicators need to be adjusted to monitor and evaluate
community management.
Mobilizing and equipping communities for water system management takes time.
Indications are that this initial investment is paid back in greater cost effectiveness. Further
work is needed to provide conclusive demonstration of the economic benefits in the long
term. Conventional indicators are not an appropriate way to monitor progress in community
management in which capacity building is a major component. Alternative progress
indicators are being developed and need to be tested along with innovative participatory
evaluation techniques.

Srinivasan, L. Tools for Community Participation: A Manual for Training Trainers in Participatory6
Techniques PROWWESS/UNDP. 1990
26
D. Training for Improved Community Management
In any sector where the focus is on achieving large scale physical targets within a set time
frame, there may be a tendency to treat attitudinal constraints lightly. Project personnel may
be aware of community resistance and behaviours which run counter to project objectives.
But many believe that these attitudes and behaviours will change when the facilities or
devices are in place.
According to Srinivasan , "the overriding goal of community participation in the water and6
sanitation sector is not simply to ensure sustainability of a system by teaching people how to
function in a committee or how to fix a pump. Rather it is to help people to develop the
outlook, the competence, the self-confidence and the commitment which will ensure a
sustained and responsible community effort in the sector."
If a project comes up against fears, doubts, suspicion, lack of self-assurance or traditional
beliefs and values that run counter to the proposed change, a participatory approach can be
vital. In communities where such attitudes commonly prevail, behaviourial change is
unlikely to take place unless a sufficiently sensitive and facilitative approach is used to
uncover, examine and address social constraints as cited below:
! diffidence in the presence of authority
! fear of speaking up in group meetings
! low self-esteem
! distrust of the motives of those in power
! reluctance to take risks
! fear of economic consequences or social loss of face
! fear of criticism for overstepping customary roles
! factional differences
! a sense of powerlessness or fatalism
! lack of experience in working with groups
! lack of skills in planning and problem solving

27
! conflicting beliefs, customs, "superstitions"
Trainers assume a large measure of responsibility for the quality of community participation.
A participatory training programme cannot take place in isolation. Training programmes
exist within a project context which involves many other people who affect project
outcome.
One cannot rely upon training alone to change the way extension staff relate to local
communities. They need support, guidance and a continuing flow of inspiration from those
who make policies and set standards.
Participatory Training
A participatory training strategy can be incorporated into ongoing programmes. It is
pointless to train communities unless there is adequate follow-up and some structure
whereby the training can be assessed and further training given at later stages of the project.
Training programmes involve many people who affect project outcomes. All these people
must become familiar with the goals of participatory training if the project is to succeed.
The participatory approach uses a learner-centered approach in which the focus is on the
learner developing ability and skills to diagnose and solve their own problems. The trainer
merely facilitates a process of competency-building and self-discovery for the learners
whose needs, experiences and goals are the focus of the training.
In order to train communities effectively, one has to train field staff to become aware of
how to work more effectively at the community level. Trainers should include not only
those who are on the faculty of training institutions but also all those who provide in-service
guidance and support through field supervision, programme monitoring and evaluation. This
includes engineers, technicians, community development officers, agronomists,
environmental sanitarians and health assistants.
Without this kind of back-up from policy makers and trainers, they are not likely to innovate
or make special efforts to involve people, particularly if a good performance is judged
mainly in quantitative terms e.g. number of meetings held, demonstrations given or pump
caretakers trained.
Many agencies, especially UNDP/Promotion of the Role of Women in Water and
Environmental Sanitation (PROWWESS), have developed methods to train trainers to work
more effectively with communities. They have developed a manual titled "Tools for
Community Participation" by L. Srinivasan which outlines different methods that can be
used including innovative exercises which allow project staff and communities to analyze
their problems more effectively.
E. Summary Points

28
‚ there are many types of community participation including:
! consultation
! a financial contribution by the community
! self-help projects by groups of beneficiaries
! self-help projects involving the whole community
! community specialized workers
! mass action
! collective commitment to behaviour change
! endogenous development
! autonomous community projects
! approaches to self-sufficiency
‚ improving community involvement involves information gathering, consultation,
the making of administrative arrangements and a full consideration of
representative bodies in the community
‚ UNICEF programmes must actively promote a shift from community involvement
to community management
‚ while programmes cannot "create" real community management, they can assist in
the formation of important preconditions such as ensuring access to information,
institutional capacity and effective external support services
‚ training should no longer focus on the technology (how to fix a pump) but rather as
a tool to assist in the development of the communities' competence, self-confidence
and commitment
‚ participatory, learner-centered approaches to training should be developed and
implemented for greater effectiveness

29
3. Cost and Cost Effectiveness
A. The Cost of Water
Establishment and Operation and Maintenance Costs
The establishment costs (or capital costs) of a water system include the more obvious costs
such as the cost of the labour, materials and equipment needed for the construction of the
system but also include less transparent (and more easily forgotten) costs such as those
associated with project planning and administration, donor agency overheads, import duties,
equipment amortization, etc.
Operation and maintenance costs are frequently higher than originally anticipated and not
fully taken into account at the project planning stage. Although the situation has improved
in recent years with the application of lessons learned over the last two decades, there are
still many water supply projects that ultimately fail because of inadequate provisions for
these costs. The classic (and still too common) example of this is a rise in the cost of fuel or
electricity for pumps in a piped water system. However there are also many examples of
"low maintenance" options such as handpumps or photovoltaic solar systems in which the
operation and maintenance costs become far higher than originally planned.
Variables Affecting Cost
The cost of water can vary from a couple of dollars to several hundred dollars per person
served and depends on a number of variables:
Technology Choice
There is always a choice of technologies for new water supply systems that affects
the final cost of the system. This choice is often related to the level of service
desired (e.g. in-house connections vs. handpumps) but can also be influenced by
other factors such as the type of source (see below), government and donor agency
preference, and the lack of awareness of or unavailability of alternatives.
Level of Service
The two basic indicators for level of service are the quantity of water per person per
day (often expressed as the number of people served by each water point) and the
minimum distance from a water point. A country that has defined the minimum level
of service to be 500 people per water point within 2 kilometres will pay less than a

30
neighbouring country that has defined the minimum as 150 people within half a
kilometre. Or, within the same country, the cost of an urban system based on in-
house connections (one family per water point within 0 kilometres) will be
significantly higher than the cost of rural systems.
Labour and Material Costs
These cost are highly variable within and between countries and regions and have a
major influence on the final cost of the system. The degree to which a project
depends on highly skilled national or expatriate technicians influences the overall
cost. Another important factor is the amount of material and equipment which must
be imported from abroad. While importing equipment such as handpumps may be
economically justifiable (and may be the only option available) during the
construction phase of the project, it can create problems later with the maintenance
of the system, especially if no provision has been made for the continuing import of
spare parts once the project has finished.
Accessibility and Quality of the Water Source
The least expensive water supply systems are, with few exceptions, based on
shallow-to-medium depth groundwater sources. This is because there are a variety
of inexpensive technologies to tap and pump the water (hand-dug wells or borewells
with handpumps) and, of equal or greater importance, the water does not often have
to be treated before use. The use of other water sources such as deep groundwater
that is beyond the range of handpumps, bacteriologically polluted ponds or streams,
or groundwater with high concentrations of iron or fluoride, can significantly
increase system costs. Even water sources which, at first glance, appear to be
plentiful and of good quality can be much more expensive to tap than shallow
groundwater. Examples include rainwater-based systems, which can become very
expensive because of the need to construct large storage reservoirs, and springs,
which are often too far from beneficiaries and thus require expensive piped systems.
In all cases the specific situation determines the final choice of water source - in hilly
areas, for example, a spring-fed piped water system may be more cost effective than
hand-dug wells or borewells.
Efficiency and Cost Effectiveness of Project Management
The cost of management can be a significant proportion of the overall project cost.
Overhead costs of government, NGOs and donor agencies contribute to, and thus
must be included, in the overall cost of a water system. Management expenses and
overheads in some projects can easily add 25 percent or more to the total project
cost, and can thus significantly affect its cost effectiveness. Inefficient project
management is often a factor that results in costly projects. Poor logistics resulting
in equipment down-time, non-standardization of equipment, problems relating to
transportation or port clearance, and the under-utilization of labour or equipment

The seven points below are adapted from Improving Cost-effectiveness of Rural Water Supply and7
Sanitation Programmes by Nigam/Heyward, UNICEF, 1993
31
are all common examples of inefficient project management.
Community Management
Numerous examples have shown that a project that is managed by the community
itself is much more cost effective in the long run than a "top down" project. When
the community is involved at every stage from planning to operation and
maintenance, and thus has a real sense of ownership of the system from the outset,
many costs are minimized or eliminated. Cost savings can be direct such as when the
community provides volunteer or low-cost labour during construction or contributes
locally available materials. Indirect cost savings are often more important: for
example, when the community is involved in the planning stage of the project, it may
provide the local knowledge necessary to avoid using a water source that would be
inappropriate for cultural reasons or identifying a water source such as a spring
which may have been overlooked by outsiders. Cost savings through community
management are often significant in the area of operation and maintenance: a routine
maintenance programme designed and implemented by the community itself will
function much better than a system imposed from outside and will result in a
reduction in repair and replacement costs.
Involvement of Women
Women are the primary stakeholders in the area of domestic water supply. They are
responsible for water at the household level, and are traditionally influential in any
decisions regarding communal water supplies. If women are fully involved at all
stages of project implementation, the risk of costly errors in system design will be
minimized. In addition, the active participation of women in community
management bodies will ensure that these bodies are effective, and therefore cost
efficient.
B. Improving Cost Effectiveness 7
Large per capita cost variations between water supply projects in the same region and
experience of successful cost reductions within individual projects illustrates that cost
effectiveness can be dramatically improved if appropriate measures are taken.

32
Systems Management
Control of system management costs can reduce the unit cost of a water point significantly.
However, there are limits depending upon the technical and management capacity available
in the country and the quality of programme management. Countries which generally have
the capacity, such as Pakistan, can deliver the output using more local staff instead of costly
expatriate staff. In other countries, where there is insufficient local system management
expertise, the use of expatriate staff is imperative for success. While system management
costs can be controlled to a certain extent, much of the effort in the short run could usefully
be directed at ways and means of increasing output using available manpower resources
which could contribute to both an increase in the number of facilities and unit cost
reduction. In this context, greater coordination between donor agencies active within the
country and their long-term commitment of resources in the provision of rural water supply
can contribute to a significant reduction in system management costs.
Capacity Building
Long-term cost reduction and sustainability in the sector can only be achieved if national
capacity for delivery of these services is enhanced through training, planning and
organization. Capacity building should ideally be carried out at the community, technical
and managerial levels.
Ensuring Community Management and the Participation of Women
Ensuring that communities are the managers of their own water supply systems should be
given high priority, as a means of reducing long-term costs. The formalization of the
differing roles of government, the donor agency, private contractors and the community
through contractual agreements is a good first step towards achieving true community
management. Project design must also address the key role of women as water providers.
The full and meaningful participation of women in community management structures is
essential for long-term efficiency and success.
Technical and Logistical Considerations
Even when considering only one technical option, that of the borewell handpump, a variety
of cost-saving measures can be applied. The largest single cost item in the handpump
option, and one which acts as a constraint to expansion, is the drilling operation and drilling
success rate. Correct choice of drilling equipment, drilling area, and drilling rig movement
can reduce overall costs. Selection of the right equipment depends on the geological
conditions and anticipated drilling depths. Proper surveys prior to drilling can contribute
significantly to cost reduction. For example, in Nigeria the failure rate in the government
programme, due to inadequate surveys, has been particularly high with a number of

33
boreholes running dry after a short period of time. Since drilling costs are the single major
component of cost, actions to optimize the use of surveys, rig movement and monitoring
can have a major impact.
Experience suggests that improvements can be made in the purely technical and engineering
aspects for lowering costs of a borewell with handpump. Some key factors are:
C Yield of the well - The target yield in borewell design should be only that required
by the handpump to be installed, which is usually in the range 750 to 1,000 litres an
hour. Taking additional measures to increase the yield to, say, 2,000 litres an hour
"just in case," is unnecessary and often costly. This practice can become a major
drain on resources, especially in projects drilling large numbers of borewells.
C Diameter and depth of the well - Doubling the diameter of a well, or increasing its
depth will substantially increase the costs. In most situations, the diameter of the
well is the sole function of the handpump to be installed (100mm to 125mm
diameter borewell is sufficient for most handpumps). The depth range of the wells
should be defined by scientific investigations and proper surveys in accordance with
the design yield.
C Equipment selection - Commonly there is an over-specification of equipment
required for drilling "just in case" it is needed. Large equipment not only requires
greater capital investment but also means higher running costs, as seen from the
example of Ethiopia in the table below.
Big Rigs vs. Small Rigs
Rig Type Capital Cost Daily Depreciation Consumables Fuel Cost
(US$) (over 7 years, US$) per metre per Hour
(US$) (US$)
Big Rigs 700,000 274 81 57
Small Rigs 520,000 204 43 23
Equipment selection should be based on the diameter of the wells to be drilled, the
average depth to be drilled, the geological formation to be drilled and the
accessibility of the drilling sites. For wider coverage smaller rigs should be used
with larger rigs for drilling in certain areas only.
C Standardization - Non-standardization of drilling equipment, materials and
handpump models increases the spare parts requirements, increasing operation cost.
The successful expansion of the rural water supply programme in India, for example,
was due to a great extent to the use of one type of handpump, the India Mark II.
The production of hardware, the design of maintenance systems, and the spare parts
procurement and distribution systems were all built around this one pump,
simplifying and improving the cost effectiveness of the programme.

34
C Logistics - The timely availability of materials, particularly imported items, can also
help reduce costs. If economies of scale are to be realized and drilling costs
reduced, there should be sufficient advance planning and lead time for obtaining the
supplies. In one large long-running UNICEF-supported drilling programme, spare
parts are ordered eight to ten months in advance. Developing countries also need to
be provided some form of "certainty" of financial support from donors to enable
proper logistical planning. If financial support for programmes is cut or reduced
mid-stream, the costs of rural water supply increases considerably. Idle rigs, due to
poor logistics, add significantly to costs. There are numerous examples of rigs which
are technically capable of drilling 100 wells a year producing only 5 or 6. Reducing
rig downtime, efficient back-up service, operating a shift system so that borewells
are completed without stopping, and planning rig movements based on logistical and
not political considerations can also reduce costs.
C Productivity - Low productivity with high systems costs adds to the unit cost of a
water point. There is often a case for building an incentive system for local staff to
increase output. This will have to be carefully designed to fit in the institutional and
wage structure in cases where the water supply is provided by government teams so
that it does not conflict with the sustainability of the overall government
programme.
Local Production Of Materials and Spare Parts
Imported inputs add both to the capital and maintenance costs and are a constraint to
sustainability. The scope for medium-term cost reduction in countries which have the
capacity for local production of materials - including spare parts, without sacrificing quality
- should be investigated. It should be noted, however, that in smaller countries the
economies of scale necessary to justify local production may be difficult to achieve.
Tariff Reduction
In countries where local production is not feasible, it will be necessary to import equipment
and materials. The cost of importing can be substantially reduced if the government reduces
or eliminates tariffs on imports for this purpose. UNICEF is often uniquely qualified to
advocate with government for such changes.

Unit Costs of Handpump-equipped Borewells - Sudan
8,1 8,7 9,0 8,5
9,5
7,6
2,8
1977 1979 1981 1983 1985 1987 1989
0,0
2,0
4,0
6,0
8,0
10,0
In thousands of US$
35
Reducing Drilling Costs in Sudan and Zambia
Over a two-year period, from 1987 to 1989, UNICEF Sudan succeeded in decreasing the unit cost of handpump-
equipped borewells by 63 percent through a series of measures, including:
C Convergence of resources (consolidation of several small displaced drilling projects into one larger project),
leading to reduction of overheads and the cost of logistical support.
C Production incentives (a bonus wage system linked to productivity), leading to increased output.
C Community participation and cost recovery, allowing government to optimize capital resources and
minimize recurrent cost disbursements, it also fosters community ownership and control and hence
sustainability.
In Zambia, drilling costs were reduced from an average of US$5,000 per borewell to US$2,600 from 1996 to 1998
through the application of a series of reforms in UNICEF-supported programmes including:
C reducing specifications of borewells to a level more appropriate for handpumps;
C the issuance of a single contract for both hydrological survey and drilling;
C drilling payments based on unit tasks instead of lump sums;
C and no payments made for dry wells.
Not only are more boreholes being drilled because of reduced costs, but the number of contracts being awarded by
other donors has also risen, because of increased confidence in getting value for money.

36
Regional Differences in the Cost of Water
In the 1995 paper "A Model of Costs and Resources for Rural
and Peri-urban Water Supply and Sanitation in the 1990s"
(Nigam/Ghosh), an attempt was made to estimate cost
differences between the regions of Africa, Latin America and
Asia. The results, summarized below, illustrate the major
differences between the regions and between rural and peri-
urban areas.
Cost per Capita
in US$
Africa Asia Latin
America
Rural Water 15 6 30
Peri-Urban
Water
95 6 100
Contracting
The use of private sector
contractors may increase the cost
effectiveness of a programme in
certain situations. It may be
necessary to support the private
sector through incentives for a
limited period and to ensure the
conditions and environment exist
for their operation. It could
include the provision of an
adequate market size to make it
attractive for private contractors
to invest in expensive drilling rigs
and other equipment. At the
same time, it is essential that
capacity building of government is
provided to ensure the effective
monitoring and supervision of the contractors.
C. Summary Points
‚ operation and maintenance costs frequently are greater, over the long term, than
capital costs and thus should be fully considered during planning
‚ there are many variables that affect the cost of a water project, including:
! technology choice
! level of service
! labour and material costs
! accessibility and quality of the water source
! efficiency and cost effectiveness of project management
! community management
! involvement of women
‚ project costs can be significantly reduced if appropriate measures are taken within
the following areas:
! systems management
! capacity building
! ensuring community management and the participation of women
! technical and logistical considerations
! local production of materials and spare parts
! tariff reduction
! contracting

37
4. Water Technologies
A. Design Options, Constraints and Choices
Design Options
Water can be "produced" from different sources by various technical means. The supplies
can then be "delivered" to consumers in different ways. Whatever the technical solution
adopted, the aim is to make adequate quantities of water, which is safe for human
consumption, reasonably accessible to all, including especially, the underprivileged groups
of society.
Decisions on the level of service to be provided - how, where and in what quantities water
will be delivered to users - are crucial in the planning of any water supply project. System
design options are:
C Single Point systems, which usually consist of dug wells or small-diameter drilled
wells from which water is drawn using a handpump.
C Standpipes: piped distribution systems which feed a limited number of public taps,
each of which serves all households - and other users - in the vicinity.
C Household Connections: piped systems which deliver water to taps in individual
household compounds or homes.
Piped systems are fed by gravity-flow directly from the source (e.g. a mountain spring) or
from an elevated tank into which water is pumped from, for example, a deep borewell.
Treatment of the supplies, where necessary, is possible in intermediate storage tanks.
Public water points, whether open wells, handpumps or standpipes, must always be
provided with solid, watertight platforms (aprons) from which waste water is drained away.
These can also be supplemented with laundry, bathing and other facilities, including troughs
for watering animals and collection systems for watering small vegetable gardens.
Piped systems, especially with household connections, provide greater convenience and are
thus preferred by people in most communities. Increased convenience always results in
increased consumption/usage, which in itself can be expected to have an impact on health
status and yield other benefits. Consumption increases of up to 500 percent have been
recorded following the introduction of yard taps.

38
Whether the extra cost of pumping, elevated tanks and yard taps can be justified depends on
the natural or external resources available for large-scale coverage and the capacity and
willingness of users and communities to pay the much higher operating costs of motor
pumping.
Constraints and Choices
The idea of making large quantities of safe water readily accessible to all households is often
not easily realizable. In many situations:
C The resources of safe water available in the area are limited, situated at some
distance and/or difficult to access;
C Financial resources are limited, and insufficient to meet the high costs of extensive
pipe-work and pumping;
C The technical expertise - the trained workforce and institutional capacity - required
to design, establish and operate extensive pumping and piped systems may also be
lacking.
The existence of adequate water resources in the locality is, of course, an essential
prerequisite. Some programmes have, however, spent much time and money drilling
without locating any worthwhile quantities of groundwater. This unproductive effort is not
only costly but discouraging for the communities; it can be reduced by proper surveys.
Elsewhere, in the Sahel and Bangladesh for example, the level of the groundwater table has
fallen considerably since the rates of drilling and pumping, especially of larger wells with
power pumps for irrigation or industry, have increased. In consequence, many existing
village wells run the risk of drying up. The required water resources legislation and
management may be difficult to institute. Deeper set handpumps are often the only solution.
The need for good survey data and careful exploration before major drilling activities are
undertaken is obvious. Careful and continuous monitoring of the condition of groundwater
reserves and control of pumping, where necessary, are no less important.
The limitation on funds available is an obvious major constraint. Where programmes have
been planned to provide high levels of service, the number of communities covered has
often been small and high proportions of the total population have remained without any
reasonable access to safe supplies.
As a general rule, piped systems are more costly to establish and maintain than single point
systems. However, there are situations where standpipe systems are the most economical
alternative. Most commonly this occurs in areas with high population densities, such as
poor urban areas. There are also cases where communities are willing and able to pay the
increased cost for the added convenience of standpipes or yard taps. Finally, in some areas

39
in which point sources are not feasible for technical reasons (usually the absence, or the
chemical contamination of groundwater) piped systems are a necessity.
Notwithstanding such instances, sturdy and reliable handpumps installed in small-diameter
wells are probably the main way in which water can be provided, at a reasonable cost, close
to the homes of the majority of rural people who are presently lacking adequate, safe water
supplies.
B. Sources of Water
There are basically three categories of naturally occurring water resources: groundwater,
rainwater and surface water.
Groundwater occurs under most of the world's land surface, but there are great
variations in the depths at which it is found, its mineral quality, the quantities present
and the rates of infiltration (thus yield potential) and the nature of the ground above
it (thus accessibility). In hilly areas it emerges from the ground in places as natural
springs, otherwise wells have to be constructed and pumps or other lift mechanisms
installed.
Rainwater collection, from roofs or larger catchment areas, can be utilized as a
source of drinking water, particularly where there are no other safe water sources
available (for example in areas where groundwater is polluted or too deep to
economically tap). In extreme situations, small quantities of water can be condensed
from the atmosphere (as dew) on screens or similar devices.
Surface Water, in streams, lakes and ponds is readily available in many populated
areas, but it is almost always polluted, often grossly so. It should only be used if
there are no other safe sources of water available.
The amount and reliability of background data on water resources varies between countries.
In many, a certain amount of additional surveying and exploration is necessary before
projects can be planned in detail, especially where groundwater is concerned.
Groundwater
Groundwater is the primary source of water in UNICEF-assisted projects. Such sources are
usually bacteriologically pure, so disinfection is not necessary. However, groundwater
aquifers can become bacteriologically polluted from sources of contamination such as
latrines, garbage dumps, corrals and cemeteries, and through poorly constructed wells. For
example, a deep borewell that has been improperly sealed can serve as a conduit that
transmits polluted surface water into the aquifer. It must be remembered that

40
Roof Catchment (Source: Water Supply Options for Guinea
Worm Eradication, UNICEF et al)
Women and Rainwater Harvesting
At Nagercoil, in India, during 1994, a group of women
previously engaged by masons as head load carriers were
trained in the construction of ferro-cement structures with the
objective of ensuring the sustainability of rainwater
harvesting systems. Over a 15-day period they learnt to
construct doors, roofing sheets and water- retaining ferro-
cement tanks.
This small group of women gained skills in the construction,
maintenance and repair of their own rainwater harvesting
systems and were subsequently able to find jobs themselves
as masons. UNICEF supported training enabled several
communities to provide themselves with safe drinking water
in addition to enhancing the confidence and status of the
women who were trained.
bacteriologically pure groundwater
that is drawn from a well is often
polluted during its transport and
storage and thus the identification and
tapping of a pure water source does
not automatically guarantee safe
drinking water.
Groundwater may also be chemically
contaminated, making it unfit for
consumption without treatment. As
described later in the chapter,
common contaminants include iron,
excessive dissolved salts and fluoride.
In many areas groundwater is, in
principle, accessible at relatively low
cost, but the technology to reach it
and get it out of the ground in most
cases requires considerable skill.
There are also limits to all
groundwater resources, even when
they appear to be plentiful. Over-pumping can result in a lowering of groundwater levels to
a point where it is no longer feasible or possible to continue pumping. This has become an
increasingly common occurrence
throughout the world, where over-
pumping for irrigation, industry or
large-scale urban water supply
systems results in rural handpump-
equipped wells going dry.
Groundwater resources must
therefore be properly managed, and
conservation measures be enforced
where necessary, including control
of exploitation and the use and re-
infiltration of contaminated surface
water. The management of
groundwater resources should be
assured by appropriate institutions
and legislation.
Since groundwater is the most
common source of water in UNICEF sponsored projects, methods for exploiting it are
covered in detail later in the section.

41
Rainwater
Rainwater may be collected ("harvested") from surfaces by:
- Roof Catchment: After passing through a screen and/or filter, the water is
conducted through gutters to cisterns. These cisterns can be large enough to serve a
community or institution (such as a school) or relatively small, for single-family use.
Innovative designs, and the use of ferro-cement in cistern construction in some
countries (Indonesia, Thailand, India) have reduced costs and popularized this
solution, especially for family use.
- Ground Catchment: The run-off from hard ground during heavy rains may be caught
in lined pits, or may be diverted into a special borewell as a means of artificially
recharging a groundwater aquifer. In addition, dams can be constructed to retain
water flowing in gulleys and valleys. The environmental impact of larger dams and
any artificial recharge system must be carefully examined at the design stage.
Once designs appropriate to local conditions are available, collection systems can be
constructed at relatively low cost by communities themselves with the help of local
craftsmen.
Surface Water
Where no other sources are readily available, surface water can be contained, collected and
used after some form of filtration.
Large-scale treatment is generally feasible only in major urban contexts: the installations are
costly and require very close and continuous technical supervision to ensure correct, reliable
functioning. In areas where there is no other option but the village pond or stream, lower
cost slow sand filtration systems (see the section on water quality below) have been
installed and operated with some degree of success. It should be noted however, that
operation and maintenance of such systems is often problematic and requires more
resources and attention than the initial construction of the units.

42
Surface Water Tastes Better
"It is five PM in the village of Jhadol, Rajasthan, India. Kavita, 25 years old and the mother of three young
children, carries a large brass water jug on her head. She leaves her hut to fetch water for cooking and
drinking. She passes by a handpump which, although it is in working condition, in not her destination.
Ten minutes later she arrives at the village nari - a large pond which has collected rainwater - where she
sees several women taking water from it. She catches a glimpse of some cows and goats drinking, their
legs submerged in the water. She fills her jug with water but does not notice that the water is murky and
dirty. After her jug is filled, she stops awhile to chat with her neighbour, and then heads on home."
Although groundwater is usually a better option than surface water from a public health engineering
standpoint, there is often some resistance by villagers who have traditionally had a surface water source to
using a new, groundwater source. This is most often the case in areas (as in the example above) where the
groundwater has a high level of salt, iron or other mineral. But in some cases, people simply prefer the taste
of the surface water.
(Source: UNICEF WATERfront, Issue 6, pg. 22)
Sub-Surface Dam (Source: Water Supply Options for Guinea Worm
Eradication, UNICEF et al)
C. Groundwater Systems
Sub-Surface Dams
Sub-surface dams trap groundwater where it flows close to the surface in valleys or dried-
up river beds. The water is
stored as a shallow aquifer
beneath the surface and
therefore very little water is
lost through evaporation,
and there is a natural
purification of the water as it
filters through the ground.
The dam must be
constructed across the width
of the valley and down to an
impermeable layer to be
effective. The water is
accessed by wells -
preferably combined with
infiltration galleries -
constructed upstream of the
dam.

43
Spring Protection (Source: A Design Manual, UNICEF-
Pakistan)
Spring Protection
A spring occurs where the groundwater table intersects the surface. Springs are often the
traditional source of water, especially for communities living in hilly areas and thus are
already a culturally acceptable water supply solution.
Only springs which match the
following criteria should be
considered for improvement:
- the spring should provide
a minimum yield of water
throughout the year
(except in specific cases
where the spring is being
developed to increase the
community's water
security for a portion of
the year - 9 to 10 months
for example);
- there should be no major sources of contamination (such as a town, factory, cattle
yard, etc.) upstream of the spring, and the water quality should be checked and
found acceptable;
- the distance between the spring and the beneficiary community should be within the
national norms (unless a gravity feed system is being contemplated - see below).
The protection of the spring usually involves the construction of a sealed "spring box"
which traps the water, provides for some basic filtration and sedimentation through the use
of a gravel filter and sump, and, in some cases, provides water storage space to satisfy peak
demand. It can be constructed using locally available resources and expertise.
The yield of some springs can be improved through the construction of a "filtration gallery,"
the insertion of filter pipe around the spring, leading to the spring box.
In all cases, the area immediately upstream of the spring should be protected from the
defecation of animals through the use of a fence or hedge. Erosion can also be a problem in
spring areas: the area upstream from the spring should be protected with vegetation and
bunds if necessary, while the excess flow from the stream should be channeled into an
existing stream or drain, or directed back into the ground using a soakage pit.
A protected spring can also be used as a source for a gravity-flow piped water system
leading to a village below. Since no pumping is required, spring-fed piped systems are
generally less costly and simpler than pumped piped systems.

44
Hand-Dug Wells
Hand-dug wells are widely used in developing countries, and in many areas for hundreds of
years. There are also a large number of donor-funded rural water supply projects based on
the construction of hand-dug wells.
There are many advantages to this technology:
- it does not require highly skilled labour;
- the level of community involvement and ownership can be enhanced through
the appropriate participation of beneficiaries in the actual construction of the
water point;
- an efficiently managed hand-dug well construction programme can be the
most inexpensive water supply option;
- the improvement in an existing hand-dug well is often the first step towards a
safe water source for the community;
- unlike most borewells, water can continue to be drawn from a hand-dug well
even if the pump is broken or where a pump has never been installed;
- much of the well can be constructed using locally available material;
- since hand-dug wells are of a larger diameter than borewells, a certain
amount of water storage space is available which can help to provide
sufficient water for peak use times.
However, the disadvantages of hand-dug wells must also be taken into account:
- in the absence of appropriate safety measures and equipment, the
construction of wells can be dangerous;
- although there are many cases of very deep hand-dug wells, most are
relatively shallow (less than 15 to 20m) and tend to tap water from the
uppermost (unconfined) aquifer, and are thus more susceptible to
bacteriological contamination and the effects of falling water tables;
- unsealed hand-dug wells are especially susceptible to contamination from
people and animals;
- the fact that this technology is only efficient in soft geological formations
with relatively high groundwater levels restricts its application to specific
areas and regions.
Although there are a wide range of construction methods and materials that can be used to
construct hand-dug wells, most larger well programmes make use of circular concrete well
"rings" that are pre-cast (on site or in a local production centre) and sunk into the ground.
In very soft formations, the rings are sunk starting from the surface: digging from the inside
of the ring, removing the material with a bucket (usually with the help of a tripod and
pulley), and adding new rings as required. In harder, semi-consolidated formations, an
unlined hole can be excavated down to the water table and only then are the ring liners
inserted. In any case, the concrete rings are usually 1 to 1.3 metres in diameter and 0.5 to 1

45
Hand-drilling (Source: Water Supply Options for Guinea
Worm Eradication, UNICEF et al)
metres high (large enough to allow a person to work inside it, but small enough to be
economical and easily transported).
In most cases a motorized pump is required to de-water the well to allow excavation below
the water table; however, in some cases high-flow handpumps (such as diaphragm pumps)
can also be successfully used. A filter at the bottom of the finished well is often necessary,
especially in formations with fine sand or silt particles. The filter can be a layer of gravel and
coarse sand or a porous concrete plug (some of the lower well rings can also have porous
areas to allow greater flow in poorer aquifers).
The well is finished with a headwall, a sealing slab and a surrounding apron with a drain.
Care must be taken that the drain ultimately directs water to a natural or artificial drainage
system and that the apron drain does not create a pool of water three metres away from the
well. Although some new wells are still constructed without the installation of a handpump
(instead relying on a windlass or bucket and pulley system), a handpump is preferable to
avoid contamination but only in areas where handpumps are already prevalent.
It is sometimes appropriate, and economical, to concentrate on the improvement or
rehabilitation of existing wells rather than the construction of new wells. This usually
involves the deepening and disinfection of the existing well, the repair or replacement of the
well lining, and the installation of a sealing slab, an apron and a handpump.
Hand-Drilled Borewells
The drilling of borewells using
simple, inexpensive hand-operated
equipment is a very appropriate
technique under certain conditions:
the aquifer must be relatively
shallow (usually less than 25 to 30
metres), and the formation must be
soft. Under these conditions, hand-
drilled borewells can be completed
much faster than hand-dug wells,
and can reach slightly greater
depths.
The most common type of hand-
drilling equipment consists of a
tripod and winch with drill rods and bits. The rods are manually turned (usually by four
people) and extra downward force is applied by people sitting on the cross bars.

46
Well Construction Technologies
Hand- Hand- Cable-tool rig Small air-flush Multi-purpose
digging drilling rotary rig rotary rig
Approx. capital cost range in US$ $1,000 $1,000-5,000 $20,000-100,000 $100,000-250,000 $200,000-500,000
Running cost very low low low medium very high
Training needs for operation very low low low-medium medium very high
Repair skills very low low low-medium medium very high
Back-up support very low low low-medium medium very high
Approx. range of penetration rates in 0.1-2.0m 1-15m 1-15m 20-100m 20-100m
metres per 8-hr day
200 mm* holes to 15m in unconsolidated - fast fast impossible very fast**
formation
200 mm* holes to 50m in unconsolidated - slow and fairly fast impossible very fast**
formation difficult
200 mm* holes to 15/50m in semi- - impossible fairly fast impossible very fast**
consolidated formation
100 mm holes to 15/50m in consolidated - impossible very slow very fast** very fast**
(hard) formation (not gravel packed)
* 200 mm holes to give 100 mm diameter finished well after screening and gravel packing. ** constrained by logistical support
From: Arlosoroff, S. et al. Community Water Supply, The Handpump Option, UNDP/World Bank.
As in all borewells, the design and completion of the hand-drilled well is vitally important.
The appropriate type and length of well screen (slotted well-casing pipes) must be placed at
the correct depth, and, in most cases, a gravel pack must also be applied. An improperly
designed or finished well is sometimes a cause for failure when drilling is carried out by less-
skilled labour. As such, the hand-drilled well is less "forgiving" and more dependent on
skilled labour than is the hand-dug well. However, the hand-drilled well does share with the
hand-dug well, to a large extent, the advantage of being very suitable for a high degree of
community participation as people can assist in the actual construction of the well.
A related technique, hand-jetting or sludging, is widely used in some alluvial areas. Hand-
jetting is only suitable in very soft formations. However hand-jetted borewells have been
constructed as deep as 200 metres and have served large numbers of people living on river
flood-plains and deltas (in India and Bangladesh, for example).
Jetting involves pumping water into drill pipes, which allows them to be forced downward
with a turning motion. Additional pipes are added as jetting proceeds. Upon reaching the
desired depth, the drill pipes are removed and well casing is inserted into the hole. The
pump most commonly used is a high flow handpump (usually operated by two people
simultaneously), but small diesel or petrol centrifugal pumps can also be used.

47
Portable Drilling Rig (Source: Water Supply
Options for Guinea Worm Eradication,
UNICEF et al)
Machine-Drilled Borewells
The majority of water points constructed in
UNICEF-assisted programmes are machine-
drilled borewells. Mechanized drilling is chosen
over hand-digging or hand-drilling for three
principal reasons: borewells can be drilled much
faster than with the other two methods, much
greater depths can be achieved, and drilling rigs
are available which can efficiently produce
borewells in semi-consolidated and consolidated
(hard) formations. In fact, in many regions,
mechanized drilling rigs are the only choice for
groundwater-based water supply programmes.
The main disadvantage is that the capital,
operating and maintenance costs are much
higher with mechanized drilling rigs than with
hand-drilling or digging. An efficient drilling
programme offsets these costs by the speed of
drilling, and can produce water points for less
than $1,000 each in some cases. On the other
hand, the speed of a drilling rig is always limited
by the efficiency of the logistical infrastructure it
operates within. There are cases where drilling
rigs theoretically capable of drilling 150
borewells a year only drill 10 or less because of the lack of fuel, spare parts, skilled
operators or poor planning and management. The operation of drilling rigs, and the
management of mechanized drilling programmes, are complex occupations requiring skilled
and experienced personnel.
Two types of mechanized drilling rigs are most commonly used in UNICEF-assisted
programmes: cable-tool rigs and small rotary rigs:
Cable-tool rigs, or percussion rigs, are of very simple design and have been used for many
years. The machine drills a hole by repeatedly driving a heavy drill string and bit into the
ground, removing the cuttings with a bailer, and repeating the process until the desired
depth is reached. The drill string is not rotated (some natural rotation takes place which
assists in the cutting operation) - the rigs engine is used for repeatedly raising the heavy drill
string through a winch and cable system. Since the rigs, although mechanized, are of very
simple design, capital and operating costs are reasonable low. High drilling speeds can be
achieved in unconsolidated and semi-consolidated formations, but this drilling method is not
suitable for hard formations.

48
Truck-mounted Drilling Rig (Source: UNICEF India)
Unlike cable-tool rigs, rotary rigs
drill by boring - the engine turns the
drilling stem and bit at high torques
to produce a hole. There are many
types and designs of rotary rigs. A
common subdivision of type is into
rigs which use mud (water mixed
with clay) for the removal of
cuttings ("flushing") and those
which use air (usually mixed with a
foaming agent to increase
efficiency). In all cases the air or
mud is forced down the drilling
stem and then returns back up the
stem carrying the cuttings to the
surface. In addition to flushing, the
drilling fluid (mud or air) also
serves to cool and lubricate the
drilling bit and stabilize the hole and
prevent it from collapsing (in
unconsolidated and semi-consolidated formations) until the drilling operation is finished and
the casing installed.
Air-flush rotary rigs are used mainly in hard-rock formations, and are capable of
efficiently drilling to great depths at high speeds (especially with the now commonly
used "down-the-hole hammer" which provides percussion at the foot of the drill
stem, and is powered by the same compressed air used for flushing). Although not
overly complex in themselves, air-flush rigs require a separate air compressor unit
which are typically expensive, bulky and complex.
Mud-flush rigs are most efficient in unconsolidated to semi-consolidated formations,
but can also be used in hard rock. A "mud pump," which is expensive and often
maintenance intensive, is required for circulating the drilling fluid. A logistical
bottleneck often encountered with mud-flush rigs, particularly in dry areas, is the
need for fairly large amounts of water for operation.
All categories of drilling rigs come in a variety of models and sizes. Rigs can be so large as
to require a 20-ton carrier truck, or small enough to fit in the back of a pick-up truck.
UNICEF has been purchasing (and even designing) drilling rigs for thirty years, and there is
consequently a wealth of resources available (in Copenhagen and elsewhere), for assistance
in purchasing rigs and initiating a drilling programme.

49
Due to the continuing importance of drilling in UNICEF WES programmes, the cost and
management of drilling programmes is covered extensively in the next section.
D. Pumping
With a few exceptions (springs and artesian wells), all groundwater systems must make use
of pumps to draw the water to the surface (non-pumping solutions such as lowering buckets
into dug wells, or large open step-wells where people walk down inside the well to collect
water are highly prone to contamination and thus should not be considered as viable
options).
Handpumps
Handpumps are the most common and, in most cases, the only economically feasible water
lifting device for community needs. Yield depends on the depth and design, normally in the
range of 600 to 1,500 litres per hour during constant use. Thus the maximum number of
users for any one pump should, ideally, be not more than 150 persons. However in many
countries, and especially in Africa, the actual number of users per handpump is 500 or
higher.
The first force-mode handpumps used in UNICEF-assisted water projects in the 1960s were
based on single-family cast-iron pumps used in the developed nations for more than a
century. These pumps were quickly demonstrated to be inappropriate for community water
supply projects because they were unable to withstand being used by hundreds of people a
day, and because they were difficult to maintain. As the result of this, an effort initiated in
the 1970s was launched to develop a handpump that was sturdy, easy to maintain, and that
could be manufactured in developing countries. The first and most successful outcome of
this effort was the India Mark II handpump which became the standard pump in India and
many other countries in the late 1970s and the 1980s.
While suction pumps can only lift water from a maximum depth of about seven metres, they
are still widely used and continue to serve hundreds of millions of people (many of which
live on the Gangetic plain and delta in Bangladesh and India). Where groundwater levels are
falling (or where shallow groundwater is becoming polluted), these pumps are gradually
being replaced with force-mode pumps like the Tara. However, suction pumps continue to
be appropriate in many situations and they remain the easiest pump to maintain due to the
fact that all moving parts are above ground.
The handpump development effort also led to new thinking in the area of maintenance
programmes and the realization that a decentralized management of maintenance structure
is the most successful model, and that the most important design criteria for a handpump is
its maintainability (see the following chapter on maintenance).

50
During the 1980s a UNDP global project for handpump testing and development (executed
by the World Bank and with active UNICEF input) further studied and developed the
design and manufacture of handpumps. It established standards and testing procedures that
are used by UNICEF and other organizations for the selection and procurement of
handpumps (see the box in this section on UNICEF-specific selection and standardization
guidelines). The findings of the project are contained in the book Community Water Supply
- The Handpump Option (Arlosoroff et al, UNDP/World Bank), which remains one of the
most important texts in the sector to this day.
Handpump Classification
Type Description Depth Range Common Examples
Suction Raise water to the surface through a vacuum (sucking) Shallow - Nepal No. 6
action. All moving parts are above ground. Typically (0 to 7 m)
in the form of cast iron pumps, but also come in
different forms such as the plastic Rower pump and
diaphragm pumps.
Force- Create a force lift of the water, most commonly using Low-lift - Tara, Maya
mode a piston with leather, rubber or plastic washers (cup (0 to 25 m) - Nira
(lift) seals) located in a pump cylinder below groundwater (Direct Action)
level. The piston travels up and down in the cylinder
through a up and down motion at the pump head
(direct action), a lever type handle, or a circular
motion handle. Other mechanisms include spiral or
helical stainless steel rotors encased in a rubber stator
in the cylinder, and rubber diaphragms actuated
hydraulically.
Intermediate-lift - India Mark II and III
(25 to 50 m) - Afridev
- Vergnet
Deep-set - India Mark II Extra
(50 to 90 m) Deep Well
- Volanta
Although much handpump development work is still being carried out, it is mainly in the
area of improving or modifying existing handpumps rather than "inventing" a new
handpump. Good handpumps for most applications already exist, and efforts to design a
"new" handpump for a specific project or country are misguided and wasteful. UNICEF
issued guidelines for handpump selection and standardization issued as a memo from
Programme Division to all UNICEF Representatives and Assistant Representatives. (10
June 1996, Ref: 96/402/TEC.CO., excerpted in the box below) to assist country offices
involved in handpump policy and technology. These guidelines should be used to avoid
costly repetition and unnecessary experimentation.
Most effort in the area of handpumps in the coming years will be in the implementation of a
workable management of maintenance structure and the promotion of a nation or region-
wide standardization. The in-country production of handpumps, while desirable in
principle, is only potentially feasible in medium and larger countries with an established
manufacturing base and a market large enough to support it. Experience has shown that it

51
is more efficient for smaller countries to procure handpumps from abroad, especially from
other developing nations with long experience in the production of public domain
handpumps (India is the notable example here, producing - and exporting - thousands of
Mark II/III, Afridev and Tara handpumps at prices significantly lower than anywhere else
in the world).
Other Pumping
Systems
The handpump is, and will remain, the pump of choice for most UNICEF sponsored water
supply projects. All other pumping systems, including those based on alternative energy
sources, have greater capital and operating costs associated with them and in most cases,
greater maintenance costs as well. However there are specific situations where power
pumps can be more appropriate than handpumps, such as:
- areas where a storage and distribution system is necessary (e.g. rural
hospitals), economically feasible (e.g. high density poor urban
neighborhoods), or desired by a community willing and able to pay the
higher capital, operation and maintenance costs associated with such a
system;
- areas with a relatively inexpensive and reliable source of energy (usually
electricity);
- situations where greater yields than that available from a handpump is
required (e.g. communities with only one borewell which require water for
additional needs such as cattle and irrigation);
- areas where the only available water is groundwater which is deeper than
90 m;
- some emergency situations (e.g. rapidly expanding refugee camps);
- in some areas where the only source is surface water.
Electric pumps are reliable, easy to operate and require little maintenance. Where villages
and urban neighborhoods are connected to an electric grid network, the installation of piped
systems with an electric pump can be appropriate. However, the electricity supply must be
reliable, and the additional operation and maintenance costs must be taken into account
during the project design phase. There are a wide variety of electric pumps available,
including shaft drive, centrifugal and submersible (which is the most common). A type of
electric pump known as the jet pump, which pumps water down a well through a venturi
forcing more water up the well, is becoming more common and, in some areas, very
inexpensive.

52
A. UNICEF’s Role
UNICEF, in most cases, is a major partner with host Governments, and a powerful advocate for low cost
technologies and community based strategies in the Rural Water Supply and Sanitation sector.
Advocating for a better handpump that is cost effective, reliable and affordable by user groups is part of
UNICEF’s role. However, UNICEF should facilitate appropriate decisions such as technology choice through
negotiations between the host Government, potential manufacturers, sector partners, donors and communities. UNICEF
should offer unbiased support, maintaining at all times, objectivity. UNICEF staff members should in no case advocate
for a new handpump based solely on individual preference but be guided by the UNICEF strategies in Water and
Environmental Sanitation and this guideline.
B. Handpump Technology Choice
A number of handpump designs both branded (proprietary) and public domain are available to meet various
field conditions. The Handpump Project of World Bank/UNDP extensively documented laboratory and field test results
from 70 different handpump models from developing and developed countries. It is not easy to choose a handpump
unless a proven selection process is followed. The salient features of UNICEF’s handpump selection process, proven over
25 years, are summarized below.
Define Field Conditions: Collect field data on water quality, static water level during the dry season, type of borehole
(lined or unlined), number of users per pump, local resources (technical and financial) available for maintenance and local
capacity and capability for manufacture. If the water is corrosive, for example, the use of handpumps with non-corrodible
components will be preferable.
Establish Selection Criteria: Define the selection requirements, which will include minimum acceptable discharge
against the maximum head, reliability (number of maintenance interventions per year), maintainability (level of skill and
number of tools required to carry out normal maintenance ) and robustness (to withstand expected usage), resistance to
corrosion and abrasion and suitability for local manufacture.
Carry out Literature Search: Prepare a list of handpumps broadly meeting the selection requirements. Compare the
handpumps based on reliable field data available within UNICEF and outside in order to select pumps that have
performed well under similar field conditions. Select maximum two handpump designs for pilot scale trials.
Prefer a Public Domain Handpump Design: Public domain handpumps ( Afridev, India Mark II, India Mark III and
Tara and their local brand names like U2, etc.) developed as a result of concerted efforts of many years by donors,
governments and manufacturers have been adopted on a large scale in several countries and a vast amount of reliable data
is available on their performance. These designs are updated regularly and detailed product specifications are available.
Moreover, a number of manufacturers make each of these public domain handpumps in many countries. Competition
results in lower prices and faster deliveries. Additionally, there is no need for the payment of royalties in case a
manufacturer in a country wishes to start local production. Unless there are overriding reasons, a public domain
handpump design, backed by R&D for the continuous fine tuning of the design, is preferred. However, depending on the
country situation, well established pumps like Vergnet and Nira are not discouraged. But the decision has to be based on
many factors including affordability.
Pilot Scale Testing: A small number (maximum 50) of each handpump selected as per the process described above
should be field tested (under maximum static water level [SWL] and high usage conditions) and monitored meticulously
for at least two years to assess the pump’s performance in terms of reliability, maintainability, cost effectiveness and
sustainability. This field testing is considered sufficient to make a decision for introducing a handpump on a larger scale in
a rural water supply project.
UNICEF Guidelines for Handpump Selection and Standardization (issued 09/96)

53
Large-scale Testing: However, if it is intended to adopt a handpump design on a national scale, it is necessary to carry
out large-scale field trials. In such a case, the most successful handpump in the pilot testing should then be installed and
monitored for at least two years for its Village Level Operation and Management of Maintenance (VLOM) performance
in greater numbers (say 500 to 1,000), preferably spread over three or four locations representing various hydrogeological
and cultural conditions. The performance should be assessed in terms of maintainability, reliability, maintenance costs
and user acceptability. If the large-scale trials are successful, the handpump design may be considered for adoption at the
national level.
C. Standardization
Handpump standardization on a national scale requires a firm and long term commitment from the government
and donors on the use of a particular handpump. However, to eliminate ambiguity during procurement, production and
quality control, it is necessary to define the handpump adequately and document it in the form of a standard covering
material specifications, design, quality control, packaging, performance and warranty aspects. Establishing a handpump
standard in a country is a major accomplishment and is the final step in the handpump selection process.
Standardization on the use of a handpump at the national level offers valuable benefits. These include, limiting
the variety of spare parts and training that is required, easier inventory control, reduced training costs, preventing
fragmentation of market demand thereby increasing economic viability of local production and reduction in handpump
and spare parts costs.
Experience over the last two decades indicates that several countries have benefitted immensely by
standardizing on one handpump. Standardization of a handpump - the India Mark II/III in India and Nigeria, the Tara
handpump in Bangladesh and the Afridev in Pakistan and the Mark II in Sudan and Uganda - has proven the single most
important factor leading to programme sustainability.
The visible benefit of standardization on public domain handpumps is reduction in handpump prices - the India
Mark II was priced at U.S. $180 in the early 1980s; in 1996 it is available for U.S. $98 without rising main pipes. The
Afridev handpump price reduced from over U.S. $600 in the early 1980s to U.S. $250 in 1996.
D. Lessons Learned
Country level handpump choice and standardization may take 4 to 5 years. There are no short cuts to attain
standardization. No matter how strong the desire is to introduce a new handpump or make a change in the design, the
time tested process of choosing an appropriate handpump must precede standardization. Any compromise will result in
loss of faith in handpump technology and the technical capability of UNICEF.
Note: Although the standardization on one pump in a country is the most desirable outcome, there are cases where it is
necessary to standardize on two pumps. Such cases are most common in countries where there are two or more
significantly different hydrogeological zones -- for example, a hilly or high plain area characterized by deep static water
levels and a coastal or alluvial zone with shallow water levels. If these zones are large enough (and with large enough
populations) it can be more economically efficient to standardize on two different pumps. An example where this has
happened is India where the India Mark II/Mark III is the standard in most of the country, but the lower lift Tara
handpump is now becoming the standard in the Gangetic alluvial plain. If it is found to be necessary to choose two
pumps, it is best to choose two pumps from the same family. For example, if some very deep SWL zones exist in a
country which is using the India Mark III in all other areas, it makes more sense to choose the India Mark II Extra Deep
Well handpump to cover these zones rather than choosing a completely unrelated pump like the Volanta.
From UNICEF Guidelines for Handpump Selection and Standardization, UNICEF NYHQ, 1996

54
Diesel and petrol powered pumps are usually more expensive to operate and maintain than
those using electricity. Maintenance frequently poses problems, and fuel supplies are often
difficult to assure as well as being expensive. Only in exceptional circumstances should they
be considered, and then only the simplest possible technology - a reciprocating pump
powered by a single-cylinder diesel engine.
Windmills have been experimented with in many water supply projects throughout the
world and are most commonly attached to a handpump-like force lift pump in a borewell.
The fact that there are no energy costs associated with this technology makes it very
attractive. However, windmills have gained a reputation of being very difficult to maintain
and there are many cases where they have broken down permanently after a relatively short
life span. Nevertheless, much work is being carried out with the technology, and improved
models are beginning to address the high capital cost and maintenance problems. A result of
this work is that there are now many companies manufacturing windmills, some of which
donate windmills to UNICEF for testing. While interesting and potentially useful in
UNICEF-assisted projects, it should be noted that such testing programmes can be very
time-consuming and thus, in some cases, counterproductive.
Solar power pumps have been used in many parts of the world, but are very expensive and
continue to share, to a large extent, the windmill's reputation of unreliability. The most
common solar pump is based on photovoltaic cell technology and power electric
submersible pumps. Much of the expense (and breakdowns) associated with the technology
is related to the fact that the DC power produced by the photovoltaic cells must usually be
stored in batteries and/or converted to AC power. The large photovoltaic cells required are
fragile and very susceptible to vandalism. A new, less expensive type of solar pump which
uses the sun's heat to displace a liquid which powers a submersed piston pump, rather than
using photovoltaic cells, is now being field tested and may prove to be a successful
technology. Solar pumping systems are often most successful in institutional settings
(schools, health posts, etc.) where resources are available for their proper operation,
maintenance and protection.
Hydraulic rams consist of a special pipe assembly with a single moving valve which enables
a part of the water in a fast-flowing stream at a low level to be pushed up and delivered at a
higher level, using only the force of the original flow for energy. Although these pumps
provide a relatively inexpensive and reliable pumping solution, they can be used only in very
specific and limited situations. In some cases, the stream can be modified through the use of
aqueducts, ditches and piping to produce the necessary head to power the hydraulic ram.
Indicative Cost Comparison of Pumps
Handpumps Suction Pump (Nepal No. 6) 0.3
Tara 0.9

55
Nira 1.4
India Mark II 1.0
India Mark III 1.3
Afridev 1.4
Mark II Extra Deep Well 1.7
Volanta 10.0
Power Pumps Electric Jet Pump 2 to 10
Hydraulic Ram 3 to 15
Electric Submersible 8 to 20
Diesel Reciprocating 10 to 25
Windmill Pump 15 to 100
Solar (Photovoltaic) 50 to 175
Baseline of 1.0 is the India Mark II Handpump with 30 m rising main (FOB Bombay) at
a cost of $US 175 in 1996. Costs change constantly but the indicative ratios remain
roughly the same.
E. Storage and Distribution Systems
Storage systems are required in the following situations:
C for most standpipe and household connection piped systems and for some systems
designed to serve an institution like a school or health post (in some cases storage is
not required: for some gravity flow spring catchment systems where water is
flowing continuously, and where automatic electric pressure pumps are used to
replace storage systems);
C in rainwater collection systems, whether for individual households or for
communities;
C on some single point source systems, usually when a power pump is used to draw
water from a deep borewell at set times throughout the day (often corresponding to
electricity availability).
Storage tanks are usually elevated, and water is drawn from them by gravity.
Most commonly, storage tanks and elevation towers are constructed from reinforced
concrete or steel. However, lower cost options - such as ferrocement (thin-walled concrete
structures with chicken wire or bamboo reinforcing) and, in some countries like India,
medium density polyethylene (MDPE) or other plastic pre-fabricated tanks - are becoming
increasingly available.
Distribution systems should always be designed by experienced professionals or artisans to
ensure economy and reliability.

WHO. Guidelines for drinking-water quality, 2nd ed. Geneva. 1993/96/97 (Volume 1:8
Recommendations, Volume 2: Health criteria and other supporting information, Volume 3: Small
Community Supplies)
56
Pipes come in a variety of materials, appropriate for different uses.
C Galvanized iron (GI) pipes are used for high-pressure pipeline stretches and for
areas where pipes cannot be buried. GI pipes are much more expensive than most
other pipes.
C Poly vinyl chloride (PVC) pipes are used for lower water pressures, and must be
buried as the material deteriorates with prolonged exposure to sunlight and is easily
broken by impact.
C High density polyethylene (HDPE) pipes are often used as an alternative to GI pipes
as they can withstand similar pressures and are less expensive. They are often more
appropriate than PVC pipes because they come in rolls which are easier to transport
and handle than lengths of PVC pipe, and they do not deteriorate in sunlight.
C Bamboo trunks formed into pipes are appropriate only in the following specific
situation: in a very isolated area with no road access (making other pipes unavailable
or prohibitively expensive), with plenty of bamboo, and for use in a low pressure
system (usually gravity spring fed systems). Problems with bamboo include its rapid
deterioration unless chemically treated, and difficulties in connecting the bamboo
pipes to fittings such as valves.
Standpipes must be of sturdy design and include an apron and drain for waste water. As in
the case of hand-dug wells and borewells, care should be taken to ensure that the water is
drained completely away, that it reach some ultimate drainage system. In most systems,
standard taps are not used as they are easily damaged and tend to be left open, wasting
water. "Waste-not" taps are usually employed instead. These taps are of two designs: a
spring loaded or a weighted system which ensures that taps cannot be left on. Standpipe and
tap design is ultimately less important than the degree of community management and
ownership for the success of the system. There are many cases, for example, where standard
taps are used successfully on standpipes as the system stakeholders are careful to turn them
off, and are able and willing to repair them when necessary.
F. Water Quality
All UNICEF offices with past or ongoing water programmes of cooperation should take
adequate steps to ensure that the water quality of systems supported by UNICEF is within
acceptable limits as defined by government standards. Such standards are commonly based
on WHO guidelines and local considerations. In cases where government standards have8

57
not been established, or are in need of revision, UNICEF offices (in consultation with
WHO) may consider providing technical support to government for the development of
standards and/or monitoring systems. UNICEF has significant experience in the promotion
of community-based water quality surveillance systems in India and elsewhere that may be
highly applicable in other countries.
The discussion in the bacteriological and chemical quality sections below is a practical
introduction to water quality issues and common pollutants and contaminants typically
encountered in UNICEF-supported programmes. The WHO guidelines should be used for
the more detailed information necessary for programme design and implementation.
Bacteriological Quality
Bacteria and other pathogens are the greatest threat to the quality of water for domestic
consumption. Bacteria originating from human faeces is a leading cause of child mortality,
and water is a common transmission route. This faecal-oral cycle can best be broken by
preventing bacteria from entering water for domestic consumption or, if necessary, by
purifying water which is already contaminated.
The first step towards achieving this is by ensuring that the water source is protected.
Groundwater systems are relatively easy to protect, if a few simple guidelines are taken into
account:
- aprons with drains should always be constructed around the well;
- the well should be properly sealed: cement or clay grouting should be used
to seal borewells and impervious well lining (usually concrete) should be
used for hand-dug wells;
- the new well should be disinfected after completion, and cleaned annually
during the dry season;
- there should be no sources of contamination (latrines, garbage dumps,
corrals, etc.) close to or up hill of the well;
- people, and especially children, should be prevented from contaminating the
well through community education and mobilization;
- the well should be fenced off in areas with a high concentration of
domesticated animals such as cattle or swine;
- the provision of separate facilities for washing (washing platforms) and
livestock watering (drinking troughs) also help to protect the water source.
Surface water sources are harder to protect, and most efforts centre around preventing
people and animals from entering the pond or stream through the construction of fences and
even, in some extreme cases, the posting of guards. Sources of contamination close to the

58
surface water source should also be removed.
It should be emphasized that a protected source will help to reduce health problems only if
it is used continuously and exclusively by the community. If the water source dries up
seasonally, is too far away or is unacceptable in some other way, people will be forced to
use another, unprotected water source.
Protecting the source does not ensure that the water people drink will be bacteria free.
There are many cases of water which is bacteria-free at the source becoming contaminated
during transportation, storage and consumption. Any water supply project that neglects this
aspect will be ineffective.
Most efforts to reduce or eliminate the contamination of water during storage,
transportation and consumption are centred around the provision of effective hygiene
education in the community. The message is simple: dirty hands or implements should
never touch drinking water. However, the fact that the message is simple does not mean
that the hygiene education programme is easily carried out or, as is often the case, that it is
merely a small component of a large project and it is ill defined and poorly financed and
staffed. The hygiene education programme must be designed and implemented by field
professionals in close consultation with, and with the willing participation of, the community
stakeholders. See the Hygiene Promotion Manual in this series for a complete description of
the design and implementation of hygiene programmes.
The provision and promotion of covered receptacles for water storage in the home, and
long-handled ladles for use with the storage pots, can assist families in keeping their water
clean.
Although the prevention of bacteria from entering water supplies is the most effective
solution, there are cases where it is necessary to purify water that is already contaminated.
Some methods for this include:
C Chlorination: while technically very effective, a functional chlorination system is
often difficult to implement, especially in rural areas. However, some successes
have been achieved with simple pot chlorinators on wells and storage tanks (often
using bleaching powder as the source of chlorine). The treatment of water with
chlorine can also be effective in institutional settings such as health posts and
schools where resources are available and supervision is assured. The use of chlorine
tablets to purify small amounts of drinking water in households is not effective as a
long-term measure and should only be used in emergencies.

59
C Boiling: in most cases boiling is not a sustainable option because of the difficulty in
obtaining firewood (and the resulting damage it causes to the environment), and the
expense of other fuels.
C Slow sand filters: in areas where the only source of water is contaminated, such as a
village pond, community-scale filters have been constructed and used successfully.
These filters require considerable care and thus their success hinges upon a
community managed maintenance system. Another option is household sand filters,
usually based on traditional water containers. These filters are only effective if used
continuously and maintained properly by the family.
C Solar disinfection: a simple technology using natural solar radiation to inactivate and
destroy pathogenic microorganisms in water through a combination of ultra-violet
(UV) rays and heat. The treatment essentially consists of filling transparent
containers with water and exposing them to full sunlight for several hours; usually at
the household level. This is a promising, very low-cost system that is gaining
acceptance in several countries throughout the world. To be effective, this system
must be part of an intensive community mobilisation and education programme to
ensure correct and consistent application. It is also highly sensitive to seasonal,
climatic and geographahic factors.
Chemical Quality
Although chemically contaminated water supplies are less widespread and more localized
than bacteriologically contaminated water, specific contaminants can greatly affect the
quality of water in different areas. The most common contaminants found in water sources
throughout the world are iron and dissolved salts. Others include fluoride, arsenic and
chromium.
Iron, while not harmful to the human body except in very high concentrations (and in fact is
necessary for good health), clogs up well installations, pumps, pipes and storage tanks,
discolours laundry and gives a distinct taste to the water. The result is that people may
abandon the new source that contains iron and return to a traditional source which may be
bacteriologically contaminated. Removing iron from water is a problem. In small rural
systems simple aeration devices can be built but need frequent cleaning and maintenance.
Small iron removal plants have been set up at reasonable cost in Bangladesh, Sri Lanka and
India.
High concentrations of dissolved salts in water (above 2,000 ppm) is a widespread problem
for which there is no low-cost solution. In many areas the problem can be minimized
through hydrogeological investigation and well siting to find sweet water zones (which
often overlie saline aquifers). It should be noted that in areas with chronic brackish water
problems, people have become accustomed to consuming water with a salt content of 5,000
ppm or higher with no reported ill effects.

60
Corrosion and other chemical damage, notable incrustations of calcium, iron or other
deposits, can render any water installation - pumps, pipes, pump rods and fittings -
inoperable within a short time. The use of plastic and stainless steel instead of metal parts
greatly reduces these problems. Some handpumps, like the Afridev, are built entirely of
corrosion-resistant components. However, plastic riser mains are usually not as durable as
steel pipes and are prone to abrasion, especially in unlined hard-rock borewells. Where
borewells are lined, the use of PVC casing and screen is now widespread. Stainless steel
pump rods and riser mains, while very effective and durable, are prohibitively expensive in
most situations.
In areas with high concentrations of fluoride in water sources - which can cause very
serious public health problems - solutions have been principally based on finding alternatives
to the contaminated sources. However advances have been made in the area of water
treatment using activated alumina filtration media. Low-cost community-maintained filters
(at the source itself or in households) have been field tested on a large scale in India with
positive results.
Some geological formations contain naturally-occurring inorganic arsenic compounds that
can contaminate groundwater aquifers in concentrations high enough to pose a serious
public health risk. Such contamination has been recorded in small scattered locations
throughout the world, including in Taiwan and Chile where the element has been identified
as the cause of a number of health problems including cancer. More recently, groundwater
aquifers in geological zones not previously associated with inorganic arsenic have also been
found to be contaminated in Bangladesh, India, China and Vietnam. Arsenic has now been
recognised as being a major public health threat, with tens of millions of people potentially
at risk. Arsenic is relatively difficult to detect in water because of the very low
concentrations involved (the WHO recommended limit for arsenic is 0.01 mg/l or 10 parts
per billion - although most country standards remain at 50 ppb). Detection is further
complicated by the fact that symptoms in people may not appear for 5 to 15 years of
drinking contaminated water. The fact that some of the arsenic contaminated wells were
drilled through UNICEF-supported programmes highlights the need for country
programmes to place greater emphasis on water quality issues.
Water Quality Monitoring
As water quality problems become more widespread, water quality monitoring will
necessarily become a more important component of national water resources management
programmes and UNICEF will likely be called upon to play an increasingly active role in
this area. Given UNICEF's traditional strengths, a natural focus area could be on promoting
grassroots-level water quality monitoring initiatives in the form of community-based water
quality surveillance systems. Such systems have the potential to strengthen the existing
national water quality monitoring systems by providing the means for better and more
timely sampling and analysis by stakeholders themselves. An additional benefit of such
community-based systems is that people will gain direct knowledge of the quality of water

61
in their own sources. This knowledge can then be put to good use by the community as a
tool for negotiating with governments for service improvements, or for monitoring the work
of contractors from the private sector
A necessary pre-condition for the success of community-based monitoring systems is the
availability of user-friendly, simple and cheap water quality test kits. Recently such kits are
becoming better and more common, and in several countries UNICEF is actively involved in
test kit development. In the past, testing for bacteriological contamination of water supplies
was relatively difficult and time consuming as it was necessary to send water samples to a
properly equipped laboratory. In recent years, however, less cumbersome testing
procedures have become available. In India, for example, a system that uses hydrogen
sulphide (H S) impregnated strips of paper as an indicator of coliform bacteria has been2
developed. This simple system is being used successfully not only by technicians, but by the
community itself to evaluate its own water sources and to advocate with political leaders for
improved sources (by proving that an existing source is contaminated). Similar advances
have been made for chemical quality parameters as well. In Bangladesh, for example,
UNICEF and partners have developed a simple and inexpensive arsenic field test kit.
G. Summary Points
‚ all projects start with a decision on the level of service to be provided: single point
systems, standpipes or household connections
‚ in many situations there are three principal constraints affecting the
implementation of a water system: water resource availability and quality,
financial resources and technical and managerial skills of the community and the
service providers
‚ there are three basic categories of water sources: groundwater, rainwater and
surface water
‚ groundwater is the most commonly used source for water supply projects due to its
general good quality and wide availability
‚ there are five principal methods for extracting groundwater:
! sub-surface dams
! spring protection
! hand-dug wells
! hand-drilled borewells
! machine drilled borewells

62
‚ handpumps are the most common and, in most cases, the only economically
feasible water lifting device for community needs
‚ the UNICEF guidelines for handpump selection and standardization should be
used by all country programmes involved in handpump policy and technology
‚ while other pumping systems such as diesel, petrol, electric, wind and solar
powered pumps are available and appropriate in specific situations, handpumps
are generally an order of magnitude cheaper
‚ water storage systems are required for most piped systems, all rainwater collection
systems and on some single point systems
‚ bacteria from human faeces are the most serious threat to water quality and are
best eliminated by breaking the faecal-oral cycle through source protection,
periodic disinfection, removal of contamination sources and, most importantly,
through community education and mobilization
‚ chemical contaminants such as iron, fluoride and dissolved salts are more widely
affecting community water systems and must be minimized or eliminated through
appropriate technologies and methodologies
‚ Water quality monitoring should become a more important part of UNICEF water
programmes, in the light of increasing pollution and contamination.
Community-based quality surveillance systems can help to empower communities
with knowledge about the quality of their own systems.

63
The VLOM Concept
Village Level Operation and Maintenance (VLOM) is a strategy to
help in solving the widespread problems experienced with
centralized maintenance.
Experience in one country after another has shown that a central
maintenance system, requiring a motor vehicle and crew to move out
from a base camp, is unable to keep pumps in satisfactory operational
condition. The large expense of such maintenance and the logistical
and staffing needs to supply enough experienced and motivated teams
of mechanics to carry out repairs promptly have proved very difficult
to sustain. But the desirable alternative of village-level maintenance
is only feasible if the pump design allows for it.
A common feature of successful handpump projects is the emphasis
on village management of maintenance, reducing the dependence on
central government support of essential functions. In the extended
VLOM concept, where "M" means management of maintenance, these
elements have been added:
C Community choice of when to service pumps
C Community choice of who will service pumps and
C Direct payment to repairers by the community.
Extracted from Community Water Supply - The Handpump Option, UNDP/WB
(Arlosoroff et al)
5. Maintenance of Water Supply Systems
A. Institutional Arrangements
The majority of failures in water supply projects, over the long term, are attributable to
problems with maintenance; and most of these problems are institutional rather than
technical in nature. A successful, cost-effective maintenance programme is often much
more difficult to achieve than the installation of the water system itself.
Systems of maintenance and repair which depend upon mechanics going out from a limited
number of centres (e.g. district level workshops) have often been found to entail:
C high costs - mainly from transportation;
C long system down-times because of long waits for mechanics to arrive;
C reluctance of communities to take any initiatives to protect and prevent misuse of
installations which are considered to be the responsibility of a distant government.
In recognition of these
problems, most governments
and country programmes are
now establishing systems of
village level operation and
maintenance where community
members are primarily
responsible for the operation and
maintenance of installations.
One of the most common
institutional arrangements is the
three-tier system, originating in
India and used there and
elsewhere, where:
C handpump caretakers,
selected from among the
villagers, are responsible
for the general care and
routine maintenance of
the handpumps in their
own villages;
C pump mechanics at the sub-district level regularly inspect all installations and make

64
minor repairs as and when necessary;
C teams of more highly trained mechanics based at state/provincial level are called in
for major repair and replacement work; they are equipped with all the necessary
tools and machinery.
In some countries and regions, it has been found that even a fairly general institutional
framework like that of three-tier maintenance cannot be applied everywhere. The
institutional arrangements should be made (or modified) on a case-by-case basis, as far as
possible. The ultimate decision of the form of the maintenance system should be made by
the community itself. In India, for example, even though the three-tier system is long
established and widely implemented throughout the country, in some areas communities or
districts are using different systems that are more locally appropriate, such as combining the
first two tiers and training "caretaker cum mechanics" instead of separate groups of
caretakers and mechanics, or eliminating caretakers altogether and expanding the duties of
the mechanic.
Training of personnel at all levels should include operation and maintenance. Technicians
should be specifically trained in these techniques and selected community members trained
to undertake specific tasks within their capabilities.
In some cases the government pays local-level pump mechanics and repair teams and
subsidizes prices of spare parts which are made available at different levels; in other cases,
communities have to pay. Caretakers are remunerated by their communities which also pay
for spare parts, either out of communal funds (from regular payments by households) or by
collecting money when necessary for repairs. While project planners and government staff
can provide training and suggestions to the community in the area of managing the financial
arrangements for maintenance, the final decision on the structure and details of the financial
system used is best left to the community itself.
Over-reliance on central government bodies should be avoided for managing individual on-
site projects and ongoing operation and maintenance of systems. The development of local
government and community capacity to operate and maintain the system and design the
institutional arrangements, will help to ensure long system lifetimes.
B. Technical Issues
All water supply systems require some maintenance and occasional repairs. Some need
frequent attention even when there are no problems of misuse. Typical maintenance
programmes include:
C Handpumps: periodic lubrication of above-ground components, replacement of

65
washers and seals, replacement of plastic bearings, occasional replacement of
individual riser mains;
C Borewells: occasional re-development (or rejuvenation) of borewells with
compressed air and, if necessary, hydrofracturing to increase yield;
C Aprons and drains (around hand-dug wells, borewells and standpipes): regular
cleaning, repair of cracked and broken concrete, unclogging of drains;
C Hand-dug Wells: repair of concrete lining, cap and head wall, deepening if
necessary, replacement of gravel filter;
C Spring Boxes: regular cleaning, repair of masonry, unclogging of drain;
C Motorized Pumps: extensive mechanical maintenance;
C Rainwater Systems: regular cleaning and repair of guttering, replacement or cleaning
of filters;
C Distribution Systems: inspection and repair of leaks in pipelines, replacement and
repair of taps and fittings;
C Storage and Filtration Tanks: regular cleaning, replacement of filter media.
Maintenance difficulties and problems with frequent breakdowns are multiplied by selecting
inappropriate pumps and other materials. Handpumps, in particular, are not always
appropriate for the heavy intense use to which they are subjected as communal facilities.
Pumps which require specialised tools and equipment are sometimes selected, so that even
the smallest maintenance task is beyond the capability of willing community members.
In the selection and procurement of pumps there should be the maximum possible
standardization on one or a small number of models which are robust, appropriate to the
local situation, simple and on which maintenance can be undertaken by community members
with a minimum of tools and training. To ensure a consistent level of quality in the
handpumps used in water supply programmes, a national quality assurance and inspection
system should be established in all countries which have large-scale handpump programmes,
using international standards and quality control procedures which are available for most
popular handpumps.

66
What is a VLOM Handpump?
No single set of features or technical characteristics makes one pump a "VLOM pump" and another a "non
VLOM pump". A VLOM handpump is simply a pump that can be, and is being, maintained by the
community itself, using predominately local resources. Thus it depends more on the community - its
collective skills, resources and degree of mobilization - than on the pump. There are many examples of one
model of handpump being successfully maintained at the community level in one country, but not in another.
There are however, a couple of common and general technical features that have clearly been proven to
reduce the degree of difficulty of pump maintenance, and thus contribute to the success of a decentralized
maintenance programme. Another aspect of the technical simplification of maintenance is that in societies
where women have less technical or mechanical experience than men, there is a tendency not to train them as
handpumps mechanics because "it is too complicated". Simplified maintenance procedures is one good
response to this argument. Again it should be noted that these technical characteristics do not, in themselves,
assure a successful maintenance programme, nor are they absolutely necessary in all situations.
C Open-top Cylinders: The diameter of the riser main is less than the diameter of the cylinder in most
earlier handpumps like the India Mark II. This design necessitates the removal of the rods and riser
pipes to gain access to the cylinder components for maintenance or replacement. Since the riser
pipes are heavy (especially with the added weight of the water contained in them), in many cases it
is not possible to lift them by hand and thus lifting tackle and a tripod is necessary. Given that most
routine maintenance involves these cylinder components, this situation is a serious deterrent to
community maintenance in some areas. In open-top cylinder design, the diameter of the cylinder and
the riser main are the same which allows the cylinder to be removed, without removing the riser
pipes; only the rods must be removed. Since this operation can be done by hand, maintenance is
simplified. Many newer handpumps (India Mark III, Afridev, Nira, Tara, Volanta, etc.) are of open-
top cylinder design.
C Fewer Tools: The fewer tools needed, the less likely a pump will go without maintenance or repair
for want of a missing tool. Fewer tools also cuts down on capital costs of a project and, in some
cases, the cost of transportation (some handpumps require so many tools that traveling by bicycle,
or even motorcycle, is not viable for pump mechanics). Some handpumps (Afridev, Tara, etc.)
require only one or two tools for all maintenance and most repairs.
C "Hook and Eye" Rod Connectors: In some countries the use of threaded rod connectors has never
been an obstacle for decentralized maintenance: communities possessed or acquired the necessary
skills and tools to successfully install or dismantle threaded rods. However, in other countries the
use of these connectors has been problematic and has resulted in failed maintenance programmes
(and the costly replacement or repair of damaged rods). The use of threadless rod connectors (like
the Afridev's hook and eye system, or in pumps using Mondesh connectors) minimizes or eliminates
this problem.
Even when responsibility for maintenance and repairs is clearly defined and accepted, and

67
funds, and technical skills are available, neither routine maintenance nor repairs will be done
promptly unless the necessary tools and spare parts are also on hand at the local level, and
at reasonable and affordable prices.
The types and quantities of spare parts which must be kept need to be specified on the basis
of the manufactures' recommendations as well as in-country experience. These stocks may
be held by the communities themselves (which implies adequate planning, financing and
storage facilities), by the caretakers or mechanics, or by private merchants who sell them to
the community or mechanic when required. The use of the private merchandise distribution
system is probably the most desirable alternative, given that government-managed systems
are expensive and often inefficient. However, such private channels only exist in some
countries and regions; and the volume of the spares to be sold must be high enough to be
commercially viable.
Tools must, similarly, be immediately available. Provision may be made to supply each
community with the tools necessary for routine maintenance and simple repairs.
C. Summary Points
‚ a successful, cost-effective maintenance programme is often much more difficult to
achieve than the installation of the water system itself
‚ institutional arrangements should be made on a case-by-case basis, as far as
possible, and the ultimate decision of the form of the maintenance system should be
made by the community itself
‚ maintenance difficulties and problems with frequent breakdowns are multiplied by
selecting inappropriate pumps and other materials and by the failure to establish
an appropriate spare parts distribution network

68
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Solar Radiation, Assessment and Application. Ottawa: IDRC, 1989. Agency: IDRC
Acra, A., Raffoul, Z., and Karahagopian, Y. Solar Disinfection of Drinking-water and Oral
Rehydration Solutions: Guidelines for Household Application in Developing
Countries. New York: UNICEF, 1984. Agency: UNICEF
Adams, John . Sanitation in Emergency Situations: Edited papers from a 1995 Oxfam
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105
Glossary
apron a concrete platform built around wells and standpipes to
prevent the infiltration of contaminated water into the well
and to ensure that the area around the structure remains dry
aquifer an underground formation of permeable material containing
water
borewell a machine or hand-drilled well (usually small diameter)
Collaborative Council Water Supply and Sanitation Collaborative Council (an
umbrella grouping of sectoral agencies and professionals)
consumable fuel, oil and other inputs consumed by a piece of equipment
(like a drilling rig) during operation
ferro-cement thin-walled concrete structures using chicken wire or a
bamboo lattice as reinforcement
GI galvanized iron
hand-dug well a well (usually large diameter) constructed by hand
HDPE high density polyethylene (a type of plastic)
IDWSSD International Drinking Water Supply and Sanitation Decade
(sometimes referred to as "the Decade")
IRC International Water and Sanitation Centre
NGO Non-Governmental Organization

106
PROWWESS Promotion of the Role of Women in Water and
Environmental Sanitation Services (UNDP)
public domain a handpump design for which there is no privately held
handpump patent and is thus freely reproducible by anybody
PVC poly vinyl chloride (a type of plastic)
standpipe a water tap in either a communal area or a yard
SWL Static Water Level
UNDP United Nations Development Programme
UNICEF United Nations Children's Fund
VLOM Village Level Operation and (Management of) Maintenance
WASH Water and Sanitation for Health Project
WATSAN Water and Sanitation
WES Water, Environment and Sanitation (a cluster in UNICEF
New York - formerly known as Water and Environmental
Sanitation)
WHO World Health Organization
WWF World Wildlife Fund
yield, well yield volume of water per unit of time produced by a water well

Water, Environment and Sanitation Technical Guidelines Series
# Towards Better Programming
Implementing Water, Environment and Sanitation Strategies: An Overview*
Water, Environment and Sanitation Technical Guidelines Series No. 1
A Water Handbook
(ID No. UNICEF/PD/WES/99-1)
A Sanitation Handbook**
A Manual on Mainstreaming Gender in Water, Environment and Sanitation
Programming*
A Manual on School Sanitation and Hygiene
A Manual on Hygiene Promotion*
A Manual on Communication in Water and Environmental Sanitation Programmes*
* Publication upcoming.
** This joint UNICEF/USAID/EHP manual was first published in April 1997 under the title "Better
sanitation programming: a UNICEF handbook (EHP Applied Study No. 5)".

Water & sanitation handbook

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