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Project 2: Orkoilili

Some summary data of the project

Chronology

March 2015                                 Survey

October-November 2015         Drilling, pump test 24 hours    

March-april 2016                        Installation manual pump

                                                      Construction lavatory and 

                                                      Construction protective enclosure

April 2016                                    Inauguration of site

September 2016-April 2017    Construction water tank 35'000 L  

                                                     Purchase and installation motorized  

                                                     pump and 30 solar pannels

April 2017                                   Inauguration of site

Details 

 

Beneficiaries                   ​                                 4'472 personnes

Drill depth                                                        126 m

Water flow                                                        18'000 L/h

Project's total cost                                           44'670.- CHF

Participation Jack Guberan's Foundation    25'000.- CHF

Survey                                                                Hydrogéological Unit                                                                                        Internal Drainage Basin                                                                                    Water Office Singida

Drilling Company                                             Ardhi Water Wells,                                                                                             Dar es Salaam

The project in pictures

Phase I - drilling - October-November 2015

The drilling site of the Orkoilili project is near the Maasai dwellings, 4 km from the village of Lengatei. The road is not easily accessible. In order to ensure that the trucks can pass, the road must be cleared and the tops of the trees cut. The community is there to help.

The trucks arrive on the road that leads to the drilling point

At times, the sandy ground needs to be prepared so that the trucks do not sink into the sand. We put branches and pieces of wood on the path that the trucks will take

First attempt to pass...almost!

We reinforce the passage by adding branches and we try again. This time it passes!

The drill is positioned at the exact point highlighted a few months earlier during the field study (survey)

Krysia Cinelli, president of Elewa-Africa, with Fadhili Magogwa, local engineer supervising the work.

Drilling can begin.

The construction site seen from far

Samples are taken every 3.5 m and are, according to the engineers, very promising

Suddenly the water begins to gush, gently at first

Then strongly

Felix, the engineer who carried out the field survey, exults, because the flow seems important

Phase II - placement of PVC tubes and introduction of gravel - October-November 2015

On the site, Maasai of all ages come to observe what is happening on the site

The PVC tubes should now be placed in the borehole, making sure to put those with slots at the different levels where there is water

In order for the tubes to remain in place, we introduce gravel

Phase III - borehole cleaning (flush) - October-November 2015

When the PVC tubes are in place, it is time to clean the borehole. For this purpose, a pipe connected to the drill is introduced to the bottom, and compressed air is injected in order to remove any residues.

Phase IV - 24-hour test - October-November 2015

In order to be able to establish the exact flow rate of the drilled point, a temporary motorized pump is installed in the borehole. It is run for 24 hours, measuring the flow rate and the decrease in water level every hour. The flow decreases hour after hour, until it stabilizes. Thanks to the data collected, the engineers determine the level of stabilization of the water, which will be the place where the motorized pump will have to be positioned, and the flow.

Installation of the temporary motorized pump

The women take the opportunity to stock up on water

Livestock also benefit from the flowing water

Installation of the probe that measures the depth of the water

Krysia Cinelli is, like the community, very happy to see so much water

Engineers collect data

The results of the 24-hour test will give excellent results: an unexpected and surprising flow rate of 18,000 L/h

Laboratory analyzes of the water will confirm that it is safe to drink.

At the time of the end of the drilling and the different stages described so far, we are in November 2015. At this stage, the community must wait a few more months before being able to benefit from the water. A hand pump must be ordered and installed.

To celebrate the flow of water found, Maasai warriors kill a goat, cook the meat and share it with workers, engineers and people in the community

Phase V - Installation of manual pump, construction of wash house and water trough (March-April 2016)

A manual pump is installed 

Women can finally enjoy the presence of clean water.

The following weeks, a laundry is built

Noemi Cinelli, on a trip to Tanzania, takes the opportunity to visit the sites 

Passionate about photography, Noemi will take beautiful photos during her visit (including the one above), which we will use to make a calendar for sale

In view of the high flow, the Elewa-Africa committee decided to build a drinking trough for the cattle. 

An official ceremony with the representatives of the village of Lengatei is organized

A commemorative panel is installed

We would like to pay tribute to the Jack Guberan Foundation, who supported this project with a generous donation of 15'000.- chf

Phase VI - Construction of 30,000L tank, installation of motorized pump and solar panels - September 2016

After a few weeks of use, it became clear that the manual pump would not make the most of the water flow of 18,000 L/h. This flow rate is considered very high for the region and the borehole is the 3rd best in the Kiteto district!   The committee then decided to replace the manual pump with a motorized one, powered by solar panels, and to build a 30,000L water tank to provide a reserve in case of cloudy weather.

With the support of the Jack Guberan Foundation, we can start improving the Orkoilili project as early as September 2016

The foundations of the reservoir

The tank is on top of a hill.

Trenches will accommodate the pipes that will connect the pump to the water tank

The submersible pump

The 30 solar panels that power the pump so it can send water to the tank. This will then go down to the distribution point located a little lower

The control board

The distribution point, with 2 taps. The engineers find that the pressure is sufficient

The small house that will house the site's night watchman

The project is functional and everyone is taking full advantage of it as of February 2017

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