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Last Updated on Friday, 16 November 2012 09:18

Management of Human Ressources


As part of its policy of support towards the Cameroonian youth, Camerounaise des Eaux (CDE)  has signed partnerships with public and private university establishments for learners of these institutions to put theoretical concepts into practice and in so doing get to discover the world of the company.

Obtaining an internship at CDE depends on filing of an internship application. Such a file shall include a written application, a recommendation of the institution, a school attendance certificate, a résumé and a photocopy of the national identity card. The application file may be submitted at the CDE General Manager's office, the headquarters of Regional Directorates or by e-mail at the following address: This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

The Human Capital Development Division at the Department of Human Resources is the body in charge of internships at Camerounaise des Eaux (CDE) It attends to and guides Trainees within the various CDE Departments and Services (every working day from 2.00 p.m.).

Students whose candidatures are successful are invited by e-mail or SMS to withdraw their letters of internship.

CDE provides only unpaid academic internship for a non-renewable period of two months. Such internships are sanctioned by the award of an Attestation of Completion of Internship, subject to the submission and approval by the Human Resources Department of an End of Course Report.


Download 2010 Training program.pdf

Last Updated on Monday, 29 September 2014 09:54

Improving water quality


As part of its activities to improve the quality of water produced and distributed CDE strives to strengthen disinfection of water as it comes out of production units and within the distribution networks by raising the dose in the networks to 0.5 mg/l.
Disinfection is the final stage of water treatment. It ensures the microbiological quality of water. On leaving the production unit, there is the need to protect water during its transport to the user. Protection is ensured by maintaining a small quantity of disinfectant in the water designed to combat any bacterial pollution that could happen in the distribution network.
On large distribution networks (cases of Douala and Yaoundé), there are chlorination relay stations to avoid overdosage of disinfectant at the exit of the treatment site while ensuring quality at the extraction point.

•    Cleaning and disinfection of storage infrastructure

CDE has established an action plan for cleaning and disinfection of all water storage structures in all the Regional Directorates This action plan that took off in 2008 and will continue with a minimum frequency of once per year.

At the regulatory level, cleaning and disinfection of tanks are a statutory requirement which aims at:

• Maintaining water quality and contributing to its improvement
• Reducing the dose of Calcium hypochlorite (HTH) used for disinfecting water
• Contributing to better asset management.
• Limiting the risk of contamination.
• Respecting the rules

In accordance with regulations, tanks supplying networks and facilities must be emptied, cleaned, rinsed and disinfected at least once a year. Regularly washing tank makes cleaning easier, therefore faster and hence ensures regular monitoring of works.

These actions have enabled us to:
•    Eliminate the number of inadequacies in the quality of water supplied
•    Strengthen the safety of production and water distribution systems in the centres,
•    Optimize the use of treatment products.


•    Turbid or coloured water

Water from your tap may occasionally be turbid or coloured; this does not mean that the water from the mains is undrinkable. This may be due to a problem in the distribution system or in the pipes inside your home. It may also be as a result of dissolved iron from the walls of the pipes after too long a stay in the internal pipes, for instance after a long absence.

What can be done ?

•    Renew the water in the pipe before using it for human consumption. For this, let your faucets run for 1 to 2 minutes. If the problem persists, waist no time in contacting your local branch.
•    Renew the water in the hot water pipes of your home to prevent the growth of bacteria in warm stagnant water. Besides, it is not advisable to use hot water from the pipes to prepare hot drinks or food. It is better to use cold water that is then heated.

CDE suggests that its customers empty their water-heaters every quarter.

Any non-compliance should be interpreted as a signal that should lead to investigations and immediate corrective actions from the operator in order to return to a situation of compliance.

•    The taste of chlorine in water

Under the plan to strengthen disinfection in distribution systems, the dose of chlorine in the network was increased to 0.5 mg/litre. For comparison, the World Health Organization estimates that chlorine poses no health risk at less than 5 mg/L.

•    What role does chlorine play in drinking water ?

Chlorine is used as a disinfectant to treat drinking water. It is currently the most used product for this purpose and most effective for the elimination of pathogens and the safe transportation of water in pipes. It effectively prevents the multiplication of germs in water pipes, from the treatment plant to the consumer’s tap. The presence of chlorine in drinking water is therefore in response to a health requirement. It is guarantee for the health of consumers. However, tap water can sometimes have a slight taste of chlorine that some consumers cannot withstand. To eliminate this taste, put the water in a jug and let it be aerated for a few minutes before drinking. You can also put your jug of water in the refrigerator: the temperature will neutralize the chlorine taste.

•    Quality Degradation in private facilities:

These are private storage facilities for drinking water comprising of cisterns with a pumping system and storage tanks. Reservoirs are a place of choice for the deposition of sediments and, thereby, a risk zone for the degradation of water quality; they must be cleaned frequently. There should be draining and cleaning of these facilities at least once a year.

Standard procedure for cleaning and disinfection of a tank:

• Isolating the reservoir
• Draining the reservoir
• Maintaining and verifying faucets, stop-gates, valves, mixers, filters, protective devices
• Rinsing the walls and the floor with removal of settled matter
• Spraying the solution of bleach on the walls and floor
• Rinsing the tank
• Renewing the external seal to avoid any infiltration of water that can contaminate the water stored
• Limiting the infiltration of daylight
• Changing the ventilation system of the tank (removing aeration caps above the water level and establishing a ventilation system with horizontal wall-mouth, filters and air ducts).

Last Updated on Wednesday, 16 January 2013 17:06

Water quality

In compliance with World Health Organization (WHO) Guidelines with respect to water intended for human consumption, drinking water quality is of major concern to CDE.

CDE, as a matter of priority, carries out bacteriological and physico-chemical tests on waters collected from underground or surfaces sources with a view to providing the population with quality drinking water. For this CDE is equipped with a Central and decentralized laboratories in the various regions served by its network. Three other laboratories on sub-contract complement this arrangement.

Organization of control
The control of water quality is predicated upon regulations introduced in the World Health Organization (WHO) guidelines. This control depends on the type of resource (groundwater or surface), the flow of resources, the treatment facilities and the populations served. The organization of water quality control is based on a network of monitoring points and consists of 3 levels: the resource at the collection point before treatment, production at the point of release for distribution and distribution.

• The Resource
Monitoring aims to ensure that water quality is proper for drinking water production. It also allows monitoring the quality of resources over time to initiate actions if necessary towards preserving its quality and, where appropriate, adjust the treatment process at the production plant.

Two types of analysis are applied depending on whether the resource is groundwater or surface. The number of tests depends on the extraction flow.

• Production
Similarly, analyses apply at the exit of treatment depending on whether the source of the water is underground or surface. The frequency of tests is linked to the output of the production unit. These controls are used to verify the effectiveness of treatment and the observance of quality requirements before the water is distributed. The number of tests depends on the output.

• Distribution
The frequency of inspection tests depends on the size of the population served. The tests verify that water quality has not deteriorated during storage in reservoirs and transportation pipelines in the public network. They reflect the quality of water at consumer's tap.

Analytical Activities at the Central Laboratory
The analyses and tests performed at the Central Laboratory are:
• Bacteriological
• Physico-chemical
• Physico-chemical

The Central Laboratory also provides additional analysis for parameters that are not yet being handled by regional laboratories, and provides technical supervision, follows their achievements and the training of officials assigned to these laboratories.

Last Updated on Wednesday, 16 January 2013 17:03