05.31 Water supply structures : general information.
Present drinking water structures in the project area. This project will be decentralised. About (number) large diameter wells and (number) large diameter boreholes will be dug using local labour, construction methods and materials supplied under the local LETS systems.

About 6-9 solar submersible horizontal axis piston pumps or equivalent technology will be installed in each well. Each of the pumps will supply water to a dedicated water tank serving a local community. The well is the hub of the supply system. The water pipelines radiating from it are its spokes.

Schools will each receive one dedicated tank. Clinics, for further safety, will be served by two tanks each with its own pump.

Each well will be equipped with back-up hand-pumps (see Schedule 5 for a complete description of the hand-pumps).The hand-pumps will provide water during unusually long periods of bad weather.

Where culturally appropriate, there will be a communal washing area near each well so that women used to doing their washing in groups can continue to do so. The backup hand-pumps may also be used to service the washing areas and in cases of emergency.

The water supply is based on a water consumption of 25 litres per person per day. Since solar energy is to be used to pump the water, bad weather must be taken into account. For that reason, the tanks need to have a capacity for three days' use. Each tank will supply about 200 people. The capacity required to give 25 litres per day to 200 people for three days is 15m3, the planned size of the tanks.

05.31 Structures for the drinking water distribution system.
For possible technical solutions for the drinking water distribution system refer to:

DRAWING OF WATER SYSTEM STRUCTURES.
DRAWING OF TYPICAL WATER TANK AREA.

Usually just one Moraisian workshop will be held in a given project area.

Indicative participation

The Moraisian trainers
The project coordinator
Consultant Terry Manning
Consultant EOS advises
At least one representative of the ONG
Representative of the Health Ministry
Representative of the Rural Development ministry
At least 5 observers (possible coordinators for future projects)
30 persons indicated by the tank commissions interested in the systematic maintenance of the structures
100 persons indicated by the tank commissions, interested in drilling boreholes, drilling wells and building the associated civil and associated works

Duration of the workshop: about four weeks.

The Workshop will be expected to produce the following structures:

a) A coordination structure
- definition of the social form
- statutes
- rules
- professional and administrative structures
- financial aspects including payments
- relations with the local money LETS systems

b) Analysis of requirements
Refere to Schedule 1 for full details)

c) Hydrogeological research

d) Preparation of maps showing:
- sites of boreholes and wells
- tank sites
- feed-pipe installation lines

e) Specifications
- Work bases/depots
- Boreholes/wells
- Solar pumps
- Hand pumps
- Washing areas
- Solar panels
- Panel supports
- Borehole/well surroundings
- Laying of pipelines
- Installation tanks
- Eventual installation of UV purification units
- Training of well commissions
- Training of tank commission

f) Permits

g) The civil works
- Base for storage of equipment and materials
- Formation of teams
- Planning of works
- Logistics
- Equipment and materials

h) Installation of the structures

i) Maintenance
- Creation of the maintenance structure
- Relations with suppliers
- Importation and management of spare parts
- Planning of preventive maintenance
- Maintenance kits
- Monitoring system
- System of statistics f) Logistics
- Assembly and stocking of materials
- distribution of mini-briquettes
LIST OF FILES RELATING TO HYGIENE EDUCATION, DRINKING WATER SUPPLY AND SANITATION

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PAGE
PROJECT FEATURES


03.00 Project background


03.02 State of drinking water in the project area


03.08 Hygiene education in the project area


03.09 Sanitation in the project area


03.10 Waste management in the project area


05.10 Social structures


05.12 Hygiene education structures


05.13 Tank commissions


05.14 Well commissions


05.15 Project managment structure


05.30 Service structures


05.31 Drinking water supply structures


05.32 Sanitation structures, including organic and inorganic waste recycling structures


05.33 Waste recycling structures


06.00 Phases of project execution.


06.22 Health clubs and hygiene education


06.26 Waste recycling structures


06.29 Drinking water structures





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Drinking water structures.
The distributed drinking water supply structures are the structures which need the largest formal money capital investments. They will defined by the people themselves during a capacitation workshop following the formation of most of the other structures planned. The following general indications are therefore subject to changes, some of them important, from one project application to another. The following information should, however, give a fair idea of the size and nature of project applications.

See drawings:

PROJECT STRUCTURES
TANK COMMISSIONS – THE KEY STRUCTURES
WELL COMMISSIONS
DRAWING OF DRINKING WATER SUPPLY STRUCTURES
DRAWING OF A DRINKING WATER TANK INSTALLATION AREA

DRAWING OF COMPLETE WASTE RECYCLING STRUCTURE




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00.0.00.0. Water supply summary (example)
Villages Inhabitants Liters/day
Boreholes/wells
Handpumps
Solar pumps
Watts installed

Villages du canton de Sedomi
27071
0781
19
057
120
036000

Villages du canton de Gboto
20424
0515
13
039
069
020700









Total
47495
1296
32
96
189
56700


Basic information for drinking water supply (example):

Inhabitants : 47495
Boreholes : 32
Approximately litres/day 1.296.000 (1296 m3)
Solar pumps installed : 189
Installed photovoltaic power : 56.7 KW
15 m3 water tanks :189
Back-up hand pumps : 96 being 32 triple sets.
Pipelines from boreholes to water tanks (estimation) : 200000m.