Altereo G2C ingénierie Eau Inventaire patrimonial plan réseau GPS cartographie

Asset inventory and network map

Lay the fondations of your asset management

Preparing and updating maps

Precision surveying with GPS

Asset inventory

Reconstitution of network history

Updating asset knowledge

Non-revenue water

Boost your yield !

District area metering

Leakage detection

Pressure regulation

Design of permanent diagnosis systems

Auditing NRW management services

Altereo G2C ingénierie maîtrise des pertes rendement réduction de fuites
Altereo G2C ingénierie montée en compétence gestion patrimoniale

Capacity building for advanced asset management

You don’t feel pready yet ? We have the key to your success

Rationalise your data and workflows

Effective training programs to rapidly increase your proficiency

Optimisation methods :

for new investments
for replacing existing assets

Perspectives and awareness for decision-makers

Engage decision-makers with a long-term vision

Evaluation of medium/long term rehabilitation needs

Projection of pipeline service lives

Simulation of impact on water tariffs

Calculation of self-financing capacities

Identification of critical situations

Altereo G2C ingénierie projection renouvellement et budget à long terme
Altereo G2C ingénierie inventaire comptable évaluation financière du patrimoine

Financial approach towards asset management

The fair value of assets is restored

Unit cost database

Determining replacement costs

Determining historic value

Bringing together technical and accounting inventories

Residual accountable value of asset


Asset intelligence
for High-Performance water networks

Multiply the efficiency of your investments to replace your water supply networks

Accessible, even to data-poor water utilities

Discover HpO®
HpO intelligence artificielle pour l'optimisation du renouvellement des réseaux d'eau potable
Indigau gestion patrimoniale assainissement optimisation renouvellement RERAU ASTEE



Optimised inspection and rehabilitation of your wastewater networks

Aim for asset performance

Gain time, efficiency and reliability

Discover Indigau


Get the necessary expertise to tackle the main challenges in water services

Altereo provides training programs to suit your needs :

  • Inventory and GIS consolidation
  • NRW management strategy
  • Network rehabilitation
  • Water tariff and finance
Altereo G2C ingénierie formation gestion patrimoniale montée en comptétences
Our primary references

“The method provided by Altereo is now the reference basis for our assets”

Christian CLÉMENT, director

Preparing pricing basis to prepare for the updating of water and sanitation service assets inventory

In 2010, in anticipation of the creation of the Eau du Ponant SPL, Brest Métropole began work on reconstituting a database of its fixed assets, enabling the local public company to manage its depreciation and provisions in accordance with accounting rules. In particular, was necessary to reconstitute a financial database from the technical databases of the community to reconstitute its original value for each section of the network and to deduct its net book value. Altereo employees undertook this task with professionalism and with positivity. They explored our archives and prepared a methodology for modeling historical costs. This method has been validated by the Treasurer and is currently the reference basis for our assets.


“I would like to thank you for the quality of the training and the pedagogy”

Jean-Marc GOARNISSON, head of drinking water and sanitation services (SEA)

Training for the staff of the Departmental Council on mini water cycles – from resources to network and infrastructure asset management comprising of technical and financial aspects

From the entire team of the SEA, I would like to thank you for the high quality training and pedagogy employed by Altereo while explaining a complex subject in a span of 3 days!! Bravo for having mobilised a team of experts to provide us with the keys for understanding and for highlighting the areas needing attention while monitoring studies and projects on drinking water. We can now collectively lead by example on how to avoid running into the “wall” and aim towards “just” pricing of water for intergenerational solidarity! Thank you again and see you very soon for more Finistrian studies.


National Water & Sewerage Corporation / Kampala (Uganda)


Deployment of the HpO® Artificial Intelligence system to improve the efficiency of the Kampala water supply network



National Water & Sewerage Corporation (NWSC) is the public entity responsible for water services in over 250 municipalities in Uganda. The project covers the capital city of Kampala, which is operated by a sub-entity of NWSC, Kampala Water.
The drinking water network under the study consists of several thousand kilometers of pipes. The ageing of the networks, which were first laid in 1930, is affecting the performance of the drinking water supply.
The rate of unbilled water (NRW) is 40%. The share due to leakage is estimated at over 20%, or 75,000 m³ lost per day. Kampala Water repairs 4000 leaks per month, with no significant improvement. These are only visible or easily identifiable leaks.
The rational and targeted renewal of the network is thus a major challenge for Kampala Water. Altereo has therefore proposed an expert approach to network asset management based on its patented and award-winning HpO® artificial intelligence technology.
The project is funded by the French Ministry of Economy & Finance through the FASEP scheme.


Project overview

The project lasts 18 months and is divided in 2 main missions:

  • Mission A : Understanding and data improvement
    An essential step with the deployment of the HpO Collect® mobile application for field agents.
  • Mission B : Optimised network renewal programme
    Valuation of network failure data by HpO® artificial intelligence to predict the future risk of failure and to target and optimise leakage detection and network replacement.


Description of the mission

Mission A : Understanding & Data improvement (1 year)

Phase 1 : Understanding the context and the organisation (6 months)

The project starts by understanding the context of NWSC/Kampala Water in terms of existing practices, processes, skills, IT tools and data:

  • Understanding focused on the asset management and leakage control team
  • Familiarity with the leak detection and repair unit
  • Analysis of existing software, in particular the Geographic Information System (GIS)
  • Audit of existing data and measurement of discrepancies with the prerequisites for the implementation of HpO® AI

Phase 2 : Improvement of data describing networks and anomalies (6 months)

Existing knowledge about the network and its failures needs to be strengthened before any analysis can be made. It is necessary to have complete knowledge on two aspects:

  • Pipes (diameter, length, materials, installation or laying date)
  • Failures (date, location, type of anomaly, reason)

Data improvement work is done in collaboration with Kampala Water at 3 levels:

1. Field surveys and investigations to recover missing information

2. Deployment of the mobile application HpO® Collect

HpO® Collect has been specially designed to ease the collection of relevant data at the time of leak repair.
In less than a minute, HpO® Collect enables the field agent to collect data about the failures of mains, service connections and fixtures: GPS location, material, diameter, type of leak, cause, photos, etc.
The data capitalised by HpO® Collect is stored in a secure database which will be used for visualisation and simplified analysis.
The richer the history of failures, the better the asset is known and the more it will be possible to optimise the replacement strategy. Once a sufficient amount of failures has been collected, Altereo will be able to implement the rest of the HpO® approach, including the use of artificial intelligence to predict the risk of failures in the future.

3. Deployment of the HpO® Citizen mobile application to the population

Altereo also plans to deploy a public application that will allow the population to instantly report to Kampala Water any leaks visible on the public domain.

4. Support for updating the missing networks in the GIS

The mapping of the pipes in the geographic information system is not exhaustive. Only 3,000 km of pipes have been digitalised to date. Altereo will identify the sectors where the networks are not digitised in the GIS. Altereo will then oversee Kampala Water’s teams to survey the networks in the field and complete the GIS. This process will be continued over time by Kampala Water.

Mission B : Change management and asset replacement programme

Phase 1 : Implementation of a renewal programme on the Kampala network

During the second year of the project, after having upgraded the descriptive data of the drinking water network and built up a exploitable stock of failures, Altereo will be able to implement the rest of the HpO® approach, including the use of artificial intelligence to calculate the risk of failure in the future.

The benefits of this innovative approach are:

  • Optimising leakage search and detection
  • Targeting the pipes to be replaced as a priority
  • Drastically increasing the efficiency of the renewal budget

Kampala Water will therefore be able to significantly optimise its operations and investment programmes based on the results provided by HpO®. These results will be able to be articulated with pipeline replacement projects for which financing has already been secured from the AFD (French Development Bank).

Phase 2 : Capacity building and sustainability of skills

In parallel with the renewal programme, Altereo, in partnership with Watura, will provide Kampala Water and NSWC with an e-learning platform that will enable them to follow the training sessions. The training & capacity building programme in English will include the principles of asset management and water system performance, the importance of the key phases of the project and the use of the HpO® module interfaces left at Kampala Water.


Training Program La Réunion


Training Program for local water utility managers on water network performance and asset management

A 100% capacity building mission by definition

Water supply network asset management training session
Sewer network asset management training session



The Reunion Water Office is a local public institution of an administrative nature, attached to the Department of Reunion Island. Playing somewhat the role of the existing water agencies in mainland France, it is in charge of facilitating the various actions of common interest in the field of water and aquatic environment management.



The objective of these training sessions was to give Reunion Island water utility managers a complete vision of the issues and technical solutions within their reach to improve performances and implement real asset management strategies.
Above all, it was a question of giving them the keys to engage in a process of continuous improvement to master asset knowledge up to the optimisation of its replacement in order to achieve high levels of technical and economic performance of their drinking water services.


CD de la Meuse


Mise à jour de l’inventaire des canalisations d’eau potable du département

Actualisation des données AEP annuelles sous SIG

235 unités distributrices
3 420 km de réseau
339 forages et captages
477 réservoirs
306 stations de pompage


Nantes Métropole


Mise en œuvre d’un système expert d’analyse et d’aide à la gestion patrimoniale de réseaux d’assainissement

Création d’un système d’aide à la gestion patrimoniale
Formation au logiciel

1 jour de formation


Noumea (New Caledonia)


Study on the optimisation of pipeline replacements with HpO® within the framework of a drinking water supply master plan

Application of an inovating system based on Artificial Intelligence

45 network replacement projects



The City of Noumea selected the Thésée Ingénierie (subsidiary of Altereo in New Caledonia) – SAFEGE – Altereo consortium for preparing the drinking water supply master plan.

Altereo participated, among others, specifically in the asset management component for optimizing the pipeline renewal programme. For this, the HpO® system based on artifical intelligence was applied.

The City of Noumea has a well managed asset dataset and network leak history for the past 18 years. This high quality data has thus helped demonstrate the power of the HpO® predictive model.


Project Description

45 network replacement projects have been planned for the coming 20 years.

They represent around 35 km of networks. It is recommended that the work program be updated and adjusted every 2-3 years based on renewed data enriching the model and the evolving local priorities.


Brest Métropole Océane


Élaboration de bases de prix en vue de la réactualisation des inventaires du patrimoine des services de l’eau et de l’assainissement

Bases de prix de renouvellement à neuf des réseaux AEP & EU
Méthode de désactualisation des coûts
Calcul de la valeur résiduelle des canalisations

1 400 km de réseau AEP
1 300 km de réseau EU


SMG35 Ille et Vilaine


Étude patrimoniale et financière des services d’eau potable

Étude du patrimoine eau potable à l’échelle du département sur les plans technique et financier
Dimension prospective visant à anticiper les besoins en renouvellement des réseaux et ouvrages
Sensibilisation des élus à la problématique de gestion patrimoniale des infrastructures (investissements et évolution du prix de l’eau)

38 entités distributrices
5 syndicats mixtes de production
1 collectivité productrice et distributrice




Recherche de fuites et réparation du réseau d’eau potable

Recherche de fuites en domaine public et privé sur plusieurs années
Élaboration des programmes de travaux annuels

25 interventions par an sur plusieurs dizaines de km


Caen la Mer Urban Community


Setting up an advanced asset management system through the deployment of the Indigau® expert system

Treatment of 100 km of CCTV inspected networks via Indigau®
Applying the RERAU method to prioritise network rehabilitation

100 km of networks


SIVOM of the Issoire Region


Consolidating the asset database and preparing an optimised pipeline renewal program

Construction, update and operation of a GIS database
Multiannual pipeline replacement program via SIROCO®

1,800 km of networks
157 reservoirs
100 infrastructures for drinking water production


Mont de Marsan


Asset management study for the water network of Mont de Marsan and Saint Pierre du Mont

Constructing an optimised pipeline renewal programme via SIROCO®

300 km of networks
15 boreholes
7 reservoirs


Nha Trang (Vietnam)


Study and support in the modernisation of the management techniques to improve the water supply service

Deployment of  Cartajour Water Supply GIS
Setting up an autonomous GIS team within the water utility
Optimised water network replacement strategy using the SIROCO® expert system

750 km of networks



Nha Trang, The Government of Vietnam has set forth a target policy to phase out subsidies to water supply services. Decree 117 has granted the financial autonomy to water supply companies to stimulate the development of their financial independence. To achieve this target, the water supply companies need to modernize their management techniques to reduce their operating costs and design more cost-effective investment program. The project will provide tools to the beneficiary to improve the water supply system efficiency.
The project is implemented in 3 phases:

  • Phase 1: Institutional analysis – Needs assessment – Preparation of technical specifications
  • Phase 2: Design and implementation of the GIS – Provision of training courses
  • Phase 3: Use of the GIS for asset management and preparation of investment plan


Project Description

The project implementation comprised the following three phases:

  • Mission A: Assessment of the beneficiary’s needs in terms of GIS
    Survey of the water supply service organization, the available data and the workforce competence; redaction of the specifications for the implementation of the GIS during the project
  • Mission B: Implementation of the GIS and data acquisition
  • Mission C : Elaboration of an optimized investment strategy for network rehabilitation

Detailed study to establish an optimised network rehabilitation program, SIROCO®

Modelling of the impact factors causing interventions on the network and prediction of future breaks

Multi-criteria analysis for several criteria in terms of reduction of breaks impact on the network


PIPDA (Belgium)


Pilot asset management project for PIPDA (Anvers Province) networks with the joint support of KANEW and SIROCO®

Pilot project on 937 km of networks
Projection and long-term planning for the 50 upcoming years with KANEW
Short-term programming with SIROCO®



Following the International Water Association’s reference conference on wealth management, LESAM 2009 in Miami, Altereo and its partner Baur+Kropp were among the six organizations worldwide invited by the Dutch research center KWR to present their wealth management solutions. The aim was to participate in a workshop gathering the 10 water utilities of the Netherlands, as well as water utilities from Northern Belgium. Altereo and Baur+Kropp presented a joint approach for optimised planning of short- and long-term renewal through the application of their respective expert systems SIROCO® and KANEW®.

This approach appealed to the Belgian operator PIDPA, which operates no less than 12 500 km of drinking water networks and 2 500 km of wastewater networks in the province of Antwerp. PIDPA proposed to Altereo and Baur+Kropp to carry out a pilot project on its network.


Project Description

The pilot project was framed by three workshops:

  • Workshop to explain the methodology for identifying data
  • Workshop to present preliminary results, reframe the approach and refine the analysis by completing the data and hypothesis formulation
  • Feedback workshop with the results on the pilot area, conclusions and recommendations for wide application

The specific results on the pilot area were as follows:

  • Failure prediction for all sections of the pilot area
  • Short-term renewal programming with SIROCO® which targeted critical pipes according to performance objectives
  • Visibility on long-term renewal efforts with KANEW®

The pilot project has given full satisfaction to PIDPA, which has integrated the recommendations of Altereo and Baur+Kropp and is preparing the next steps in the consolidation of its asset management.



Quimper Communauté


Assistance pour l’élaboration de l’état des lieux des infrastructures eau potable

Inventaire des ouvrages
Détermination des coûts de construction
Mise à jour de la valeur d’amortissement

824 km de réseau


Saint Rémy de Provence


Asset study for drinking water networks

Analyzing asset management and preparing an inventory
Support for implementing a GIS
Defining an action plan to reduce NRW
Methodology for establishing a renewal program for pipelines

97 km of network




Étude économie d’eau

Mise en place d’un système de suivi performant des fuites en réseau d’eau potable
Élaboration d’un plan d’actions d’économies d’eau
Travaux de mise en circuit fermé des fontaines d’eau

176,2 km de réseau étudiés




Drinking water supply system diagnosis

Initialisation of an asset management strategy through upgrades in knowledge and forecasting of failures

264 km of networks
11 reservoirs


CC des Crêtes Préardennaises


Diagnostic des systèmes d’adduction en eau potable

État des lieux/levés GPS des ouvrages + branchements
Campagne de mesures + modélisation
Recherche et localisation de fuites
Programme d’actions

2 SIAEP : Rocquigny et Attigny (40 communes)
50 ouvrages (réservoirs + captages)
317 km de réseau


Régie de Fès (Maroc)


Water network performance audit for Fes City and definition of strategic orientations for the improvement of drinking water supply network yield

Diagnosis and audit of current performance
Performance Improvement Proposal
Reorganization of network operations
Establishment of a charter for performance maintenance

2,615 km of network



The project aimed to define strategic orientations for the future in order to continue with the improvement of the distribution network efficiency for the city of Fez, so as to reach 75% by 2015 and 80% by 2020.

Description du projet

The network’s initial yield is close to 60%, thanks to an action plan launched in 2002 with an overall budget of Dhs 240 million partly financed by an AFD loan (10 million euros).

  • Mission A: Diagnosis and audit of current performance
  • Mission B: Proposals for improving performance
  • Mission C: Reorganisation of the operations activity
  • Mission D: Preparation of a yield performance maintenance chart


Focus étude des défaillances de branchement

Altereo observed:

  • A very high number of failures, exceeding the repair capacity
  • The preponderance of failures on connection elements
  • Among these, a 50% breakage or cracking rate of the PE pipe of the connection

Altereo recommended:

  • A sampling campaign during repairs and laboratory analysis
  • Precautions for storage of PE rolls and installation of new connections



SIAEP de Guerbigny


Étude du patrimoine eau potable avec cartographie des réseaux et ouvrages

Recueil et analyse des données
État des lieux des ouvrages et équipements
Cartographie du réseau, modélisation hydraulique
Analyse du fonctionnement
Mesures de maîtrise des risques
Proposition de sectorisation et de pose de comptages
Synthèse et proposition de programmation pluriannuelle

262 km de réseau


CA de Bourges Plus


Diagnostic et planification de la mise en œuvre d’une politique patrimoniale des réseaux d’eau potable

Mise à jour du logiciel de simulation dynamique du réseau
Mise à jour du diagnostic de la défense incendie
Proposition technique de gestion patrimoniale du réseau
Formation du personnel

14 communes
929 km de réseau
13 réservoirs


Syndicat d’Eau de Lezay


Audit patrimonial pour la gestion de l’Eau Potable

État des lieux complet des ouvrages et du service AEPA
Géoréférencement du réseau de 4 nouvelles communes
Analyse et hiérarchisation des risques sanitaires de la production à la distribution
Modélisation des ouvrages
Mise à jour du Schéma Directeur Eau Potable

308 km de réseau
3 forages + 1 captage
4 ouvrages de stockage + 4 surpressions
1 900 points GPS relevés


Bois le Roy


Recherche de fuites sur le réseau d’eau potable

Recherche de fuites et réparations
Mise à jour du programme de travaux

14,5 km de réseau

Sustainable Development Goals UN HpO and Network Asset Management