Category: Uncategorized

Nature in town – extension of the Parc Départemental of the Fosse-Maussoin (93)

The Parc Départemental of the Fosse-Maussoin at Clichy-sous-Bois (93, Seine-Saint-Denis) is open to the public, who are able to enjoy this managed wooded area. In a very dense urban region, it extends over 35 acres and represents a very lovely natural space in the city. In January 2021, the département of Seine-Saint-Denis officially opened this first extension of the park.

Other development work is under way to provide 55 acres of “green lung” including a biodiversity zone. To this end, 17 additional acres are being developed. This new space will offer a panoramic view over Seine-Saint-Denis and Paris with the completion of a landscaped lookout point. New leisure facilities complement the promenade, including a games zone and a picnic area. Access will be enhanced, with two new entry points to the Park. Finally, 2,000 trees have just been planted. 

ECT created the landforms and facilities for this eighth regional park for the Seine-Saint-Denis département by providing inert soil from local construction sites.

A milestone for the partnership between Astredhor Seine-Manche and ECT

As part of its partnership with Astredhor Seine-Manche, ECT visited the horticultural research station at Saint-Germain-en-Laye. The experiment under way analyses various plots that have been vegetated using topsoil and fertile substrates produced by ECT. The protocol looks at the development of perennials and turf. Three types of fertile substrate are under test: Marl-chalk, silt-clay and sand-silt.

This visit was an opportunity to take stock: The first results on the various types of fertile substrate seem quite conclusive.

Restoration of land for agriculture, and the first harvest at Louvres (95)

On the former ECT site at Louvres, the harvest of maize went well.

Having finished bringing in inert soil to rehabilitate the site, ECT reconstituted the upper layer of the agricultural horizon. That meant re-laying the topsoil that had been stripped off at the start of the works. To return the land to cultivation, the farmer was able to sow maize despite a very rainy weather forecast for the start of May. 6 months later, in October under a threatening sky, the maize was successfully harvested.

Here are the comments of the farmer on this first harvest:

“To appreciate the quality of a harvest, you need to consider the particular context of the site and of the year. For this harvest, the maize was sown a bit late in the season (on 5 May 2021) on ground that had been freshly turned up and which had not, at least in part, been “rested”.

Bearing this context in mind and keeping interventions to a minimum, the emergence of the maize and the preparation of the ground were satisfactory. And the weeding was dealt with. In general, the technical and agronomic management were optimal, well thought out, and a match for the “probable potential of this farmland”.

The maize grew at the right rate, linked to favourable rainfall at the end of spring and in summer: 337.2 mm of rain fell between 5 May and 20 October, which is half the annual average rainfall. Substantial rainfall was, however, a handicap at harvest time, with some wet areas. That said, conditions during the harvest were satisfactory overall.

The result, for a first year after return to cultivation, met the target that had been set.

Now it is a matter of trying to plant a winter crop (barley or wheat) so as to promote the physical reconstruction of the soil and to make it possible to plant oilseed rape in autumn 2022 with the aim of benefitting from the taproot of this plant. Organic fertilisers, both nitrogenous and phosphate-potash based, will be used, based on analyses that will be carried out next spring.

There are some low parts that are a bit wet, and it’s necessary to protect the structure of these soils as much as possible.

To sum up, the first harvest did not give rise to any particular concerns for future years.”


ECT had the pleasure of participating in this first harvest, which you can see in photos by clicking here.

An archery range rehabilitated by ECT with inert soil

The archery club the “Compagnie d’Arc de Morangis” opens the gates its archery range.

Since the beginning of the year, the archers have been practicing on this rehabilitated archery range. ECT created this facility by re-using excavated soil from construction sites in the Essonne département. This area covering nearly 10,000 m2 gives a fine 360° view, and allows for safe practice thanks to a safety dike which surrounds it. The flanks of the plateau are wooded, to recreate spaces for biodiversity.

“This sport is addictive”, explains Aurélie Carpentier, an archer and a volunteer at the club. The club is open to young people from 9 upwards. 

This is a fresh illustration of ECT’s ability to promote outdoor sports in the city

Explore the archery range and the Compagnie d’Arc de Morangis in video, here.


Two new publications from the “Earth & Landscape” business chair

In 2021, two new publications enrich the thinking of the business chair “Terres et Paysage” (Earth & Landscape) about excavated soil and landscape.

“Soil and Relief as Heritage”, a conversation with Alain Freytet: 

Following the 2019 exhibition “Terres en Mouvement” (Earth Moving) and for her thesis “Rethinking the Cycle of Inert Soil, from Excavation Site to Landscaping Project”, the landscaping doctoral student Marie-Laure Garnier met the landscape architect Alain Freytet, who explained his convictions about ‘made ground’ and the landscape.

The work of Alain Freytet is inspired by the science of earth and ground so as to produce work that is nearer to the landscape: a project that you don’t see. In this conversation, he talks of his relationship with the ground and its relief in his work as a landscape architect.

Click her for the full version of this highly-motivated discussion.

“A Park in the City”, perspectives on workshop no. 5 

Students in their second year at ENSP, the national landscape gardening school at Versailles, were invited to work from September to November 2020 on one of the most typical landscaping situations: The city park.

A leaflet sums up the work of a group of students who looked specifically at the site of Mortemets in Versailles so as to answer the question: “How can you relocate a surplus of soil within a park?

In their work, which was done entirely in English, and coordinated and directed by the landscape architect and teacher Lauri Mikkola, the students developed a narrative going from landscaping diagnosis to spatial project.

And they presented their visions of the park of tomorrow. Supervised by two landscape designers, Helen Stokes and Marie-Laure Garnier, the work of the students specifically incorporated, in each of their projects, the inclusion of surplus soil so as to look more deeply at the relationship between earthmoving spoil and made ground.

Through topographic work, the students created various ambiances in their projects, with a nod to the work of André Le Nôtre, and proposed innovative solutions for a 21st-century park. This leaflet brings together the responses of the students to a major current challenge, by making earthmoving a significant project resource.

Click here to read the workshop summary in full, in French or English

The four research directions of the “Earth & Landscape” business chair

  • The use of inert soil in landscape design, or how to make a “waste product” from the process of construction into a resource to be re-used in development projects;
  • The fertility of soil, or how a landscaping project can contribute to enhancing the resilience of soil, and how to ensure and reinforce the protection of fertile soil in the physical implementation of a project;
  • Landscape as a means of guiding projects for the rehabilitation of polluted soil
  • A study of the Potager du Roi as a historic terrain for observation and experimentation on the relationship between soil and the make-up of a productive garden

‘Humanité & Biodiversité’ raises the biodiversity awareness of ECT’s employees

Training and raising awareness for ECT’s field teams

Why and how can we support nature in our everyday lives and on ECT’s sites?

Bernard Chevassus-au-Louis, chairman of the NGO ‘Humanité & Biodiversité’, attended for two training sessions. The goal was to raise awareness of biodiversity and to understand more about what biodiversity is. What are the roles of mammals and vertebrates, insects and micro-organisms? What are the relationships in natural environments? It’s about a better understanding of the need to conserve living things.

These mornings of training and discussion are complemented by unique discovery walks on our site at Villeneuve-sous-Dammartin. The site has been partly re-wilded. It has many natural environments: Woodland, forest border, wetland zones, and zones where the vegetation is establishing itself. An opportunity to learn to look at the various layers of plant growth. And to put a name to the trees and other plants.

A motivating and lasting partnership with ‘Humanité & Biodiversité’ 

In 2019, ECT and the NGO ‘Humanité & Biodiversité’ signed a charter of commitment to biodiversity.

The year 2020 marked a new stage in this partnership: The charter was reinforced with methodological points and a very practical approach for the design of ECT sites.

In 2021, these commitments took shape on the ground. After the roll-out of a questionnaire to the people and organisations we work with, to assess their awareness of environmental issues, it was time for morning training sessions.

Meeting the mayors of the Île-de-France region

For many years UMYs, or ‘Universités des Mairies d’Yvelines’ (conference days organised by the municipalities of the département of Yvelines), have featured in the calendars of the elected representatives of the Île-de-France region. In 2020, the calendar was thrown off by Covid-19.

ECT’s teams were glad, this year, to be able to go again to meet representatives, communes and intermunicipal organisations.

First meeting: 24 September at Dammary-les-Lys. This was the 59th mayoral convention, organised by the association of mayors of the Seine-et-Marne département and the president of EPCI, an intermunicipal organisation.

Then, on 16 October, an UMY brought together the communities and local authorities of the Yvelines and Hauts-de-Seine départements beneath the Pyramids at Port-Marly. We ran a well-received workshop on the theme “Developing the Regions by Upcycling Excavated Soil from the Construction & Public Works Sector”.

These short-format meetings encourage large audience numbers and make it possible to establish contacts of quality. They are a great occasion for presenting, face to face, our development solutions for environmental or functional purposes that increase the attraction of the regions.

UNEV joins the FNTP

On 21 October 2021 UNEV, the national union of upcycling businesses, joined the FNTP, the national public works federation.

The FNTP board voted unanimously in favour of making UNEV (the Union Nationale des Entreprises de Valorisation) the 17th union of public works specialists to join the FNTP.

UNEV is ECT’s union.

To read the press release in full, click here

UGOLF Sénart: Recontouring achieved using ECT’s inert soil

Enhancing the game experience for golfers.

Damien Rosello, manager of UGOLF at Sénart, opened the gates of his course to us so that we could photograph and film the four holes that have been recontoured using inert soil. The new landforms, designed by the golf architect Olivier Dongradi, offer fresh challenges to golfers. And now the course finishes with a signature hole for the 18th.

These new features are the product of the technical skill and accuracy of ECT’s teams. Our experienced bulldozer drivers know how to shape the relief of a course with great precision. ECT’s acquired experience in the traceability, the classification and the use of inert soil provides the necessary assurance that golf projects will be well handled. A dedicated team manages the inflow of soil and paces its arrival. It also coordinates the progress of the development work.


Click here to see course photographed beneath a glorious sun by Pierre Charlier,

or, for a more immersive experience, watch the video:

The mountain-biking + trials riding stadium at Epône (Yvelines, 78) now recognised by the FFC

Recognition by the national governing body for this mountain biking and trials riding stadium.

The official opening of the Julien Absalon Stadium, named after the double world champion in mountain biking and cross-country, took place in October 2021, beneath a magnificent autumn sun and in the presence of Guy Muller, the mayor of Epône, and Éric Jacoté, the vice-president of the FFC responsible for mountain biking. Parliamentary deputies Bruno Millienne and Michel Vialay were present. Franck Prestat, the president of the ORC Epône club, and Guillaume Pasquier, ECT’s director of development, also spoke.

On this occasion, Éric Jacoté made it official: The label of “Mountain Biking and Trials Riding Stadium” has been awarded by the Fédération Française de Cyclisme. It’s the first time that the FFC has awarded this double title. It’s a fine acknowledgment of the quality of the facilities. 

Official speeches and the cutting of the traditional ribbon were followed by demonstrations of mountain biking and trials riding, with free access throughout the day.

It’s a winning partnership between the town of Epône, the ORC mountain biking and trials riding club, and ECT 

It all started when the town council put its trust in ECT to develop a new stadium for mountain biking and trials riding. ECT proposed re-using inert soil excavated from nearby construction sites to create a new landform on which the stadium would take shape. The stadium itself, the slopes and the sports features were designed by the ORC (‘Off Road Cyclist’) association of Épône.

This project is part of a truly responsible ‘circular economy’ for soil. It success reflects the involvement of local organisations and the three partners’ shares ambitions for the facility.

Practice sessions, training and competitions: The future of the stadium.

This new 4.5 acre site will be used for practice sessions and local sports events. The Julien Absalon Stadium is also capable of hosting major competitions, thanks to this new label and its new features:

  • 150 m² of rock garden with boulders part-buried in the ground
  • 300 m² of trials zone
  • 600 m² of ‘pump track’ with a section of various moguls.

Discovering paragliding despite disability

At the start of 2021, thanks to its partnership with ECT, the Crécelles paragliding club of the Yvelines region has been able to treat itself to a brand-new two-person paraglider.

In October the club, together with the Thermique Francilien paragliding club, organised a discovery day for people with disabilities. About twenty people, mostly in customised wheelchairs, were able to take advantage of this initiative.

ECT is very happy to have been able to contribute to its success. 

ECT and Urbafertil, partners of the Hortis convention 2021

Hortis : un acteur clé de la filière horticole et du paysage

L’association Hortis réunit plus de 600 responsables d’espaces nature en ville, dans les Collectivités. Elle est présidée par Pascal Goubier. Son congrès annuel  a eu lieu du 14 au 16 octobre, à l’Orangerie du Domaine départemental de Sceaux, avec pour partenaire, le département des Hauts des Seine . 

Urbafertil et ECT partenaire du congrès Hortis.

C’est la deuxième année qu’ECT participe à ce congrès pour présenter Urbafertil, un support de culture, normé, recyclé et écoresponsable. Urbafertil est né de la volonté de proposer une solution locale et économique, véritable alternative à l’importation de terre végétale. Ce substrat fertile est issu du recyclage de terres inertes et de compost de déchets verts.

Végétalisation et de retour à la fertilité des sols 

La démarche Urbafertil accompagne la végétalisation des villes et propose des solutions, adaptées à la création d’espaces de nature en ville et de sport en ville

Ce produit est le fruit d’une recherche et développement. Diverses expérimentations sont en cours avec nos partenaires d’Astredhor Seine Manche, le Potager du Roi à Versailles ou encore l’Institut de Recherche et Développement de Bondy.

–>  Lire la plaquette Urbafertil


Opening of a new site at Lens

ECT opens a new site at Lens (62, Pas de Calais), on the avenue Alfred Van Pelt.

The purpose of this development is to transform a former industrial site into an urban forest. This rehabilitation project is part of a local environmental dynamic:

  • To create extensive green spaces by planting 8,000 trees,
  • To factor biodiversity into the project,
  • To reduce the nuisance impact of the A21 Lens-Valenciennes highway

This new natural space will be developed by upcycling inert soil excavated from local sites of the construction & public works sector. It is expected that soil will be brought into the site over a 3-month period.

For all access to the Lens site, prior authorisation must be obtained from ECT’s Bookings department.

For all information about the terms of access to the site (address, opening hours, soil and truck types accepted), click here

Creation of a sports and landscape space at Iverny (Seine-et-Marne, 77)

To provide a new green communal space

In the département of Seine-et-Marne and the commune of Iverny, ECT opens a new site for the reception of excavated soil. The purpose of this site for upcycling inert soil from local construction sites is the development of a space for sports and landscape.

This project has been “eco-designed” with the commune of Iverny. The objective is to offer a new communal space with nature and sport in mind. This park, open to all and with an area of 8,700 m², is designed around a wooded promenade and a fitness trail.

The project in figures:

  • Start date for the project: July 2021
  • Duration of provision of soil: One month
  • Developing the park: Autumn 2021
  • Planting trees: Winter 2021, in partnership with Iverny’s school.
  • Opens to the public in spring 2022

To find out more about the future country park, click here

Inert soil and green land-use developments: ECT talks to AMIF live

During the AMIF (Association of Mayors of the Île-de-France region) conference, to journalist Florence Duprat-Galinier, ECT explained that “you can do just about anything with soil!”

This round table presents the great potential of re-using excavated inert soil – a powerful driver for local, social and environmental development.

Indded, our land-use developments enhance a region’s appeal. Essentially, we offer to redevelop derelict land for communities and local authorities so as to carry out environmental and recreational projects on the site.

It’s all founded on the principle of ‘circular economy’. Soil from urban construction sites makes it possible to fund developments that are eco-designed with the local authority.

Find out about six examples of re-use and upcycling of soil in the Île-de-France region, including completed developments and some which are under way. Country park, reclamation for agriculture, solar power station, riding centre, and space for biodiversity.





Urban Soil: An asset for the sustainable city

A new EIVP / ECT conference: “Urban Soil: an asset for the city of tomorrow”

Within the context of the business chair “Upcycling Soil from Urban Construction Sites”, the École des Ingénieurs de la Ville de Paris (the City of Paris School of Engineering) and ECT organised a new conference on 22 and 23 June, in partnership with the École Nationale Supérieure du Paysage (the national landscape gardening school at Versailles) and with the participation of Cycle Terre. It was an opportunity for ECT and the EIVP to deepen and communicate a thought process which places soil at the heart of various aspects of the current debate on the sustainable city: 

  • As a driver for the rehabilitation of derelict sites
  • As a defining element for new landscape in the regions
  • As a construction material that respects the environment
  • As an essential element in the urban integration of green spaces of varying kinds, and of biodiversity.

A multi-disciplinary approach to the benefit of the sustainable city

These different aspects suggest that urban soil can turn a new and positive approach into reality. They are part of the policy of the sustainable city. With the twin approaches of economising on resources and re-using materials in a way that respects the environment. A wide variety of theoretical and historical approaches were considered, and national, international and Île-de-France examples given by way of illustration.

These four half-days advocated the development of a multidisciplinary approach combining urban engineering, ecological engineering, town planning and landscaping.


Land, Soil and the Sustainable City – part 1 of 2

  • Conference opened by L. Mogno (chairman of ECT) and F. Jung (director of the EIVP)
  • Overview of the conference and of the business chair ‘Upcycling Urban Soil’: Antoine Grumbach (AG Territoires) and Youssef Diab (manager of the ‘Upcycling Urban Soil’ chair at the EIVP, lecturer in urban engineering, Université Gustave Eiffel)
  • For a ‘circular economy’ in land use: Marc Kaszynski (chairman of LIFTI)
  • Support biodiversity with made-land developments: Bernard Chevassus-au-Louis (biologist, chairman of Humanité & Biodiversité)
  • The innovative ‘circular economy’ model for excavated soils: Laurent Mogno, chairman of ECT
  • Re-using soil in support of urban revitalisation: The Al-Azhar Park in Cairo, Christophe Bouleau (senior conservation officer, Aga Khan Trust for Culture)

Making Landscape; a positive impression of the place of excavated soil (in partnership with the École Nationale Supérieure de Paysage, the French national school of landscape gardening)

  • Building Landscape: A short history of earthworks and landscaping, Michel Audouy (lecturer at the ENSP)
  • Fabricated Hills: Gaalad Van Daele (architect and researcher, ETH Zürich, editor of Accattone magazine)
  • Inert soil: opportunities for making landscape, Loïc Pianfetti (head of the Paysage & Biodiversité department, SNCF Networks)
  • Round-table discussion between urban engineering and landscape, between a landscape architect, Henri Bava; an architect, Antoine Grumbach; and two researchers, Mathieu Fernandez, engineer and historian; and Hong Zhu, landscape architect
  • Conclusion by Vincent Piveteau (director of the ENSP) and Youssef Diab

Soil as a material: The Cycle Terre project (an Urban Innovative Action)

  • Soil, a living material for constructing a town: Jean Dethier, architect, author of ‘The Art of Earth Architecture: Past, Present, Future’; commentaries by Romain ANGER, engineer (Amaco).
  • Presentation and progress report for Cycle Terre, an Urban Innovative Action (UIA): Silvia Devescovi (project officer for the Cycle Terre project, Ville de Sevran); Magali Castex (project officer for Cycle Terre, Grand Paris Aménagement)
  • Reproducing the Cycle Terre model/approach, and securing its future: Question and answer session, Sophie Schlewitz (Quartus).
  • Reactions of two key observers: Raffaele Barbato (coordinator of UIA projects) and François Ménard (scientific director, PUCA)
  • Conclusion of the morning by Benoist Apparu (chairman of the board of In’li)

Land, Soil and the Sustainable City – part 2 of 2

  • Dynamics of the worsening landscape situation in the industrial section of the Meuse valley around Liége : Reclaiming degraded land is a central issue for the region. Joël PRIVOT (architect and town planner, consultant and researcher at the Université de Liège)
  • The art of the urban hedgehog. Diplomacy and sharing the basis of life. Nicolas Gilsoul (Architect, science PhD, landscape architect and lecturer at the Ecole Nationale Supérieure d’Architecture de Paris-Malaquais.)
  • Urban soils, a fertile and durable base: Jacqueline Osty (landscape architect, winner of the Grand prix de l’Urbanisme 2020)
  • New approaches to make town planning sustainable: Thinking from humanities & social sciences meets thinking from nature in a dialogue between Luc Abbadie (ecologist, professor at the Sorbonne University) and Alain Bourdin (sociologist and town planner, professor at the Université Gustave Eiffel)
  • Summary and conclusion of the conference by Jérôme Gleizes (chairman of the EIVP, elected member for Paris), Youssef Diab

Download the full programme



Objectif : une filière de transport zéro émission

Signature d’un protocole entre ECT, GAUSSIN et BOUYGUES ENERGIES & SERVICES

ECT, GAUSSIN (EURONEXT GROWTH : ALGAU – FR0013495298) et BOUYGUES ENERGIES & SERVICES annoncent la signature d’un protocole de coopération portant sur le développement de solutions de mobilité à hydrogène dans le secteur des travaux publics – hydrogènes et électriques – en 2022

Ce protocole prévoit, au cours de sa première phase, qu’ECT confie à BOUYGUES ENERGIES SERVICES le développement d’une station de production et de distribution d’hydrogène renouvelable de 2 MW.

En parallèle, ECT confie à GAUSSIN les études de conception et de réalisation pour s’équiper de 3 types de camions GAUSSIN à hydrogène, destinés à deux types de flux :

  • Un flux interne (transport sur site) composé d’une dizaine de véhicules 10×4 benne 70 tonnes avec 10h d’autonomie et d’un porteur 10×4 benne en version autonome sans cabine permettant d’embarquer 25% de charge utile supplémentaire
  • Un flux externe (transport routier à destination du site) composé de plusieurs tracteurs 4×2 44 tonnes avec une autonomie de 500 km

Les partenaires envisagent les premières mises en service dès 2022.

Un écosystème de mobilité propre dans les travaux publics

ECT, BOUYGUES ENERGIES & SERVICES et GAUSSIN résolument engagés dans la transition écologique, visent à créer un écosystème de mobilité propre dans les travaux publics.

ECT a pour activité le réaménagement environnemental de sites dégradés, dans un but de reconquête paysagère, écologique, agricole et d’intérêt sociétal. Ces réaménagements sont réalisés dans le cadre d’une économie circulaire du réemploi des terres excavées des chantiers du BTP. Les terres transitent et sont mises en œuvre par des engins de transport et de chantier.

BOUYGUES ENERGIES & SERVICES dans le cadre de ce partenariat apporte son expertise pour la production d’hydrogène renouvelable et dans la distribution de ce carburant alternatif pour des besoins industriels existants.

Un objectif de déploiement à grande échelle de ces solutions

Ce projet doit permettre d’industrialiser la production d’un modèle de poids lourds dédié à la filière Travaux Publics, avec un prix de vente optimisé et compétitif. Le parc éligible pour un modèle de ce type représente plusieurs centaines d’unités. L’objectif étant de contribuer à la création d’une filière de mobilité hydrogène pour le secteur des travaux publics et de susciter l’intérêt auprès des acteurs terrassiers et transporteurs de la filière. Ce développement à grande échelle pour la filière TP est nécessaire pour apporter des solutions concrètes de mobilité durable.

Le projet fera l’objet d’un dépôt de dossiers auprès l’ADEME dans le cadre des appels à projet visant à promouvoir les solutions de mobilité à l’hydrogène.

Un triple partenariat 

« La signature de ce protocole de coopération est une étape essentielle en vue de la création d’une filière de travaux publics propre et responsable. ECT est heureux de mener ce projet avec deux acteurs clés de la transition environnementale – BOUYGUES ENERGIES SERVICES et GAUSSIN – qui apportent les meilleures technologies en termes de mobilité propre », déclare Laurent Mogno, Président d’ECT.

« Nous avons la conviction que l’hydrogène est un levier incontournable pour décarboner la mobilité. A travers ce protocole de coopération, nous souhaitons mettre à profit du projet notre expertise sur l’installation, la maintenance et l’exploitation de centrales de production et de stations d’hydrogène vert avec un haut niveau de service nécessaire à la satisfaction de nos clients », explique Caroline Mazzoleni, Directrice Nouvelles Energies Renouvelables de BOUYGUES ENERGIES & SERVICES.

« Ce premier contrat pour le « skateboard » modulaire hydrogène et électrique de GAUSSIN et sa déclinaison en porteurs et tracteurs TP intervient moins d’un mois après la présentation officielle de ce véhicule révolutionnaire. C’est une grande satisfaction de voir émerger une première application dans un secteur aussi important que celui des travaux publics. Nous ne doutons pas que beaucoup d’autres suivront », souligne Christophe Gaussin, PDG de GAUSSIN.

Atelier ECT aux E-Universités de l’Union des Maires des Yvelines et des Hauts-de-Seine

Un atelier, pour mieux comprendre l’aménagement du territoire.

Comment aménager les territoires par valorisation des terres excavées BTP ? 

Jeudi 25 mars, ECT a animé un atelier 100% numérique aux E-Université de l’Union des Maires et des Yvelines et des Hauts-de-Seine.

Notre envie était de faire mieux comprendre la place des terres excavées dans l’aménagement du territoire.

Un territoire transformé grâce au modèle de l’éco-conception

ECT conçoit des projets d’aménagement non-bâtis réalisés par la réutilisation de terres issues des chantiers urbains.

Ces projets sont respectueux de l’environnement et favorisent la biodiversité.

C’est ainsi qu’ECT propose de redonner vie aux sites délaissés en réalisant des projets concertés et environnementaux.

Et que nous réalisons des parcs paysagers, des espaces de nature en ville, de sports et de loisirs ou d’agriculture urbaine.

Un exemple concret de réaménagement du territoire :  le projet d’Epône

Il y a deux ans, au sein de ce même salon que naissait le projet d’Epône. Un projet emblématique pour ECT et inédit sur le territoire des Yvelines. Créer le 1er site de trial et de VTT d’Ile-de-France.

Monsieur Ivica Jovic, 1er Adjoint au Maire d’Epône est intervenu sur cet atelier, pour faire part de son retour d’expérience très positif.

Pour revoir le live de cet atelier, cliquez ici


Agricultural rehabilitation of the site at Louvres: A harvest of maize is expected in autumn

Restoring agricultural vitality: The goal of rehabilitating land at the Louvres site (Val d’Oise – 95)

Restoring agricultural vitality: The goal of rehabilitating land at the Louvres site (Val d’Oise – 95)

Before rehabilitation, this land had been used to dump bad spoil during the construction of the adjoining Francilienne (the Paris outer ring road). The soil was of low agricultural value. ECT stepped in to finance and commence the agricultural rehabilitation of the land. The works lasted 5 years.

Some agricultural holdings are going to regain their fertility by the creation of a top layer of fertile substrate carried out in situ by ECT’s R&D and operational teams. 

On one part of the land, ECT concentrated the recovery of topsoil. That is where the farmer sowed at the beginning of May, despite a very unfavourable weather forecast. The harvest of maize will take place in autumn.

Click here to follow in photos the restoration of the site for agriculture, and here for the video made at the Louvres site.

Green fuel on the ECT site at Villeneuve-sous-Dammartin

With Oléo 100, ECT makes the change to green energy.

Through a partnership with Groupe Avril, ECT installs an Oléo 100 tank at its site at Villeneuve-sous-Dammartin (Seine-et-Marne – 77).

100% colza (also called rapeseed) and 100% French. Oléo 100 fuel is entirely produced from French colza oil. 

Compatible site vehicles will be the first to benefit from this green fuel. It’s a first step towards reducing the CO2 impact of site plant. An initiative which reflects the environmental commitment of the business.

Click here to explore this installation in images.


In California, ECT joins CalCIMA as a new member

ECT joins  CalCIMA, The California Construction and Industrial Materials Association, in the frame of its activities. 

Henceforth, ECT has a key partner to advance its interests and support the company activities and projects locally. 

With over 500 local plants and facilities throughout the state, CalCIMA’s members play a strong role in economy, ecology and sustainable developpment.

Firstly, its members continued availability materials ensures California meets its renewable energy. 

Secondly, they provide the materials that build the state’s infrastructure, including public roads, bridges, rail, and water projects; homes, schools and hospitals.

Finally, they assist in growing crops and feeding livestock; and play a key role in manufacturing consumer products as well. 

To know more about CalCIMA : 



Partnerships renewed in 2021 with Humanité & Biodiversité, the ENSP, and the EIVP

ECT is delighted to pursue these fascinating and demanding partnerships.

Renewing our partnership with the association Humanité & Biodiversité 

In 2019, ECT and the association Humanité & Biodiversité signed a charter of commitment to Biodiversity. This charter was completed, at the end of 2020, by the addition of methodological guidance. And the publication of an in-house operational method for the design of our land-use developments.

Prepared in ‘guidance sheet’ format, it forms a guide for carrying out the commitments undertaken in the charter. For the business, it’s a proactive policy which aims to go beyond the regulations in force under the Code de l’Environnement and the town planning code, the Code de l’Urbanisme. 

In 2021, ECT renews its partnership with Humanité & Biodiversité.

“Earth & Landscape” business chair at the ENSP

The renewal for 2 years of the “Earth & Landscape” business chair is the result of a fruitful partnership with the national landscape gardening school, the ENSP or ‘École Nationale Supérieure du Paysage’ at Versailles. Since its launch in 2019, our ambition has been to explore the interactions between the landscape and earthmoving. And to promote consideration of landscaping and the creation of new landscapes by the re-use of soil.

“Upcycling soil from urban work sites” business chair

In 2021 and 2022, this chair for teaching and research will set about disseminating knowledge about upcycling soil. 

This business chair, which is unique in France, has given rise to several interdisciplinary projects involving cooperation between ECT and the City of Paris School for Engineers, the EIVP or École des Ingénieurs de la Ville de Paris, relating to EIVP ‘s courses in urban engineering:

  • Incorporation of the theme of excavated soil in the teaching of the engineering degree course
  • Organisation of meetings and a science conference
  • The publication at the end of 2020 of a joint work, “La terre dans tous ses états” (Earth in All Its States), under the direction of Bernard Landau and Youssef Chahine

Fertile substrate, an alternative to using topsoil? A morning of discussion at the École du Breuil

To sign up for the event, click here

Fertile substrate, an alternative to using topsoil?

The École du Breuil (the school of horticulture for the City of Paris) and ECT offer a morning of discussion. This conference takes place on Thursday 18 March from 09:00 to 11:30. The event is open for physical attendance by students of the École du Breuil, and it’s open by way of videoconferencing to all who sign up.

The participants will present their experiences and give examples of use of this growing medium.

To sign up for the event, click here

The programme includes time for questions and discussion

  • Welcoming the participants
  • Introduction by Alexandre Hennekinne, director of the École du Breuil
  • Introduction by Laurent Mogno, chairman of ECT
  • Initial findings from experiments: “Composition of the fertile substrate and plant cover” Camille Soulard and Flore Diradourian, experimental supervisors – ASTREDHOR Seine-Manche and Benjamin Tilliet, director of research & development at ECT
  • Questions and discussion with the audience
  • A landmark: “Using fertile substrate in the Georges-Valbon Park”- a video interview with Benoit Pinsseau, director of the Georges-Valbon Park.
  • Recent examples: “Greening the Esplanade Saint-Louis in the Bois de Vincennes” – Eric Lamelot, manager of the Bois de Vincennes
  • Questions and discussion with the audience
  • Input from François Nolde, head of the agronomy laboratory, manager of the Soil Centre of the Division des Expertises Sol et Végétal of the Direction des Espaces Verts et de l’Environnement for the City of Paris
  • Questions and discussion with the audience

To sign up for the event, click here

Education in sustainable development: ECT sets up initiatives aimed at young people

Take part in Education for Sustainable Development (‘éducation en vue du développement durable’ or EDD)

ECT offers primary schools facilities for education in sustainable development. The idea is to inform pupils about ECT’s ongoing projects in their commune. This makes it possible to raise their awareness of the principle of circular economy that underpins ECT’s land-use developments: Derelict sites take new form thanks to the re-use of soil from urban work sites. 

As part of this, during December of last year, the pupils of the Vasarely primary school in Annet-sur-Marne (77, Seine-et-Marne) had an opportunity to learn about two projects that re-use soil excavated from sites in the Île-de-France region: The Les Gabots solar park (a partnership with Akuo) and the Les Carreaux site, which is currently under development.

Awareness of environmental issues managed by ECT has also been raised at the schools of Villeneuve-sous-Dammartin and Mesnil-Amelot. 

Organise educational outings in the local area

When young people attend visits organised on ECT’s sites near their schools, it’s clear that they are interested in initiatives to protect the environment. ECT arranges nature discovery sessions. Tree-planting by the pupils contributes directly to bringing nature back to the site.

From design to implementation, every stage of ECT’s development projects takes account of environmental issues.

Illegal dumping in Boissy/Puiseux (Val d’Oise): The press look at a solution

Illegal dumping: A national scourge.

Illegal dumping in the communes of Boissy-l’Aillerie and Puiseux-Pontoise has caused considerable damage and degraded the site so much that it could become irretrievable if no action is taken.

4 December 2017: Illegal occupation of the land begins, with intensive illegal dumping. Dumping extends over 30% of land owned by the local authority (the CACP or Communauté d’Agglomération de Cergy-Pontoise) and 70% of private land in the communes of Boissy l’Aillerie and Puiseux-Pontoise.

5 May 2018: The Prefecture stops illegal dumping and secures the site by installing concrete blocks. In five months, 6,000 tonnes / 14,000 m3 of waste have been dumped on the site.

In view of the cost of rehabilitation, the public authorities seek the help of ECT. The Prefecture of the Val d’Oise seeks a solution for the removal of the waste and restoration of the site. A solution starts to emerge.

Following ECT’s participation in the 2nd Regional Forum for Combating Illegal dumping, the press reports on the solution proposed by ECT.


France Inter: “In the Val-d’Oise, an illegal waste dump is going to disappear.”

Read the report in the Matinale de France Inter of 17/02/2021, by Alexandra Lagarde


Le Parisien: “In the Val-d’Oise, one of the biggest illegal waste dumps in the Île-de-France region may disappear.”

Read the article in Le Parisien of 14/02/2021, by Marie Persidat 


La Gazette, the weekly newspaper for the Val d’Oise: “The dump at Puiseux-Boissy is going to disappear.”

Read the article in La Gazette, the weekly newspaper for the Val d’Oise, for 13 to 19 January 2021, by Jérôme Cavaretta

Watch video of the illegal dump site at Boissy l’Aillerie / Puiseux-Pontoise (Val d’Oise)

Feature on the 2nd Regional Forum for Combating Illegal Dumping

ECT is honoured with ‘Solar Impulse Efficient Solution’ label

ECT is a “Solar Impulse Efficient Solution”

We are proud to announce that the Solar Impulse Foundation has awarded the ‘Solar Impulse Efficient Solution’ label to ECT.

ECT thus joins the club of 1000 solutions for sustainable development.

The label is awarded by a panel of independent experts, based on an assessment of:

  • Positive environmental impact
  • Financial viability and circular economics
  • Effectiveness and feasibility.

The label is a recognition of these qualities in ECT’s model for reusing excavated soil to carry out environmental developments.

ECT works in environmental development

Combining ecology with financial viability, this award affirms ECT’s ability to provide communities and local authorities with effective solutions that form part of a circular economy for excavated soil.

Here is what the label identifies in the ECT model: “This solution responds to a challenge. It re-uses soil from construction sites to create self-financing land-use developments that make a great environmental and societal contribution. The developments are in the fields of renewable energy, creation of nature parks and sports parks in the city, urban farming, and the conservation of flora and fauna. Thanks to the ECT business model, communities and local authorities are able to finance green developments for their region. This turnkey solution for cities has no financial constraints, because the projects are self-financing and ECT takes care of their operational implementation.” 

Click here to access the Solar Impulse Foundation website

ECT Talk: “Les enjeux du vert en ville” (“Greening the City: The Issues”) available to watch on YouTube

Greening the City, a powerful vision

To watch the ECT talk: “Les enjeux du vert en ville” (“Greening the City: The Issues”), click here.

According to a survey by NewCorp Conseil, 75% of people in France will be living in urban areas by 2050. And 53% of them define the city of the future as one that puts nature at the heart of the city.

In France, between 20,000 and 30,000 hectares (50K-75K acres) of natural space are lost each year as a result of increasingly intense urban land-use.

Loss of natural soil cover is proceeding at a rate three or four times higher than population growth, and is having a negative impact on the environment. The green city and the sustainable city are becoming key issues of our time.

A talk to better understand urban issues

On Thursday 28 January, ECT organised a talk on the issues around ‘greening the city’. 

Our goal was to achieve a better understanding of the role that green spaces, agriculture, biodiversity and outdoor sport will play in the city of tomorrow.

And to better anticipate their incorporation into town planning, citizen initiatives and the ecological transition.

With the objective that greening the city should be a part of constructing the positive city of tomorrow.

Laurent MOGNO, chairman of ECT, hosted the discussion alongside:

  • Laura Flessel, former minister for sport, double Olympic champion, president and founder of Sport’S
  • Maud Ridoux, director of programmes for citizen mobilisation for sustainable regions with the MakeSense association
  • Jean-Pierre Gueneau, director of green spaces for the town of Créteil and former chairman of Hortis, the association for managers of natural spaces in town
  • Jean-Patrick Scheepers, founder of Peas&Love, chairman of the European federation for urban and vertical agriculture.

ECT, committed to bringing nature back to the city

Working as part of the circular economy, ECT designs projects for developing non-built environment by reusing soil from urban work sites, within a model of eco-design that respects the environment and promotes biodiversity.

ECT brings nature back into the city, and gives a new lease of life to derelict sites by carrying out collaborative, eco-friendly projects: Country parks, areas for nature in town, for sport, for leisure and for urban agriculture.

To watch the ECT talk: “Les enjeux du vert en ville” (“Greening the City: The Issues”), click here.


For the 9th year running, ECT has had its ISO 14001 certification renewed. The scope of the certification covers ECT’s Development, Quality, Operations and HR departments, meaning that all the ECT sites that upcycle materials are certificated. This is the result of the commitment of the departments concerned, and it is an explicit statement of the importance of minimising or eliminating the impact of our work on the environment.

In November 2020, Anaïs AUBRÉE joined ECT as environmental project officer. Responsible for directing our approach to ISO 14001, she gives us an overview:

For ECT, what are the issues with ISO 14001 certification?

ECT upcycles soil excavated from sites in the Île-de-France region. Our work is an application of ‘circular economics’. [Note: Circular economics uses maximum recycling with the minimum addition of raw materials, water and energy, unlike the extraction-manufacture-consumption-disposal model of linear economics.] That’s why, for ECT, the two core issues of certification are:

  • To demonstrate to interested parties our commitment to the protection of the environment

How? As regards the quality of materials we re-use, by reinforcing the chain of traceability. On our operational sites, by upcycling soil on many useful and collaborative development projects. During the design phase, by undertaking land-use developments that promote biodiversity and respect the landscape. And our R&D is focused on the recycling of spoil. ‘Urbafertil’, ECT’s fertile substrate, is a successful demonstration of this.

  • To evaluate the impacts of our work on the environment

By assessing impacts, we are able to apply initiatives to minimise or eliminate them. On those of our sites where soil is upcycled, for example, we measure air quality and acoustic impact relating to movements of trucks and the use of earthmoving plant.

How do you get ISO 14001 certification?

By implementing, within the business, an environmental approach based on a management system. Our environmental management system (the Système de Management Environmental or SME) meets the requirements of the 2015 edition of ISO 14001. An accredited certification body comes to check that our work and our sites are compliant with these requirements. INTERTEK is the certification body for ECT. Each certificate lasts 3 years, with an audit every year.

What does your role as ECT’s environmental project officer involve?

It’s a wonderful role! I have to manage the SME and constantly adapt it to the work being done. I work with the departments concerned to put indicators and corrective action in place. My objective is to keep ECT working within a framework of continual improvement: Keeping our promises and standardising our best practices. The business has also looked into an ecosystems qualification relating to the impact of its projects. It’s a real challenge to align this with our SME. 

For ECT’s ISO 14001 certificate, click here


2nd Regional Forum on Combating Illegal Dumping

A forum to support communities and local authorities 

The situation is just getting worse. Illegal dumping or fly-tipping is a national scourge and it is increasing. Alongside illegal occupation of land, illegal dumping is increasingly intense. This antisocial activity destroys the landscape and the environment. The assessment and removal of waste is very expensive for public authorities, and so is the rehabilitation and redevelopment of sites. It was in this context of support for communities and local authorities that the Île-de-France region organised, on 3 December 2020, the 2nd Forum on Combating Illegal Dumping (‘Forum de Lutte contre les Dépôts Sauvages’).

ECT’s involvement: Rehabilitating and bringing nature back to a site where there has been illegal dumping in the Val d’Oise département.

Laurent MOGNO, chairman of ECT and Clara DIDIER, ECT’s director of projects, presented this project to the interested parties:

  • Gérard SEIMBILLE, vice-chairman of the Conseil for the Val d’Oise département, whose portfolio is Finances, General Administration, Innovation and Evaluation of Public Policy.
  • Michel GUIARD, Mayor of Boissy-l’Aillerie (Val d’Oise)
  • Thierry THOMASSIN, Mayor of Puiseux-Pontoise (Val d’Oise)
  • Jean-Pierre DUBRAY, agricultural representative and private landowner.

Michel GUIARD, Mayor of Boissy-l’Aillerie (Val d’Oise), summarised the problems that this situation presents to the communes.
“There is very little that a commune can do when confronted by illegal occupation of land. In this instance, 300 people were occupying the area. Illegal dumping started very rapidly, with no real possibility of intervening to stop the flow of waste. In this instance, the occupation lasted 5 months, the degradation of the site is significant, and the commune has been left in a position that is very hard to resolve. The Prefecture intervened to evict the occupants, but has not been able to resolve the problem of waste.
The question remains: How to rehabilitate the site?”

Watch video of the illegal dump site at Boissy l’Aillerie/Puiseux-Pontoise (Val d’Oise)

The ECT model re-uses soil from urban work sites to restore brownfield sites

ECT finances the project by bringing in soil excavated from nearby urban work sites.

The goal of the ECT project at Boissy/Puiseux is to heal a very damaged landscape. The proposed approach takes into account all the constraints applicable to the site: Landscaping, ecological and hydrological issues, on the scale of the individual site and on a regional scale.

The project focuses on three main areas: 

  • Removing the waste from the site
  • Redeveloping the site and adding value 
  • Ensuring that the project is viable, by financing it in full.


ECT adds an operational methodology to its commitment to biodiversity

In 2019, ECT and the Humanité & Biodiversité association signed a charter for commitment to biodiversity. 2020 marks a new stage in this partnership; the charter contains methodological guidance with very practical applications for the design and development of ECT sites.

Methodological guidance for operational implementation

Working with Humanité & Biodiversité, ECT defined its various commitments to biodiversity. The business then looked at the development of methodology to promote the practical implementation of these commitments in the design of its projects. The broad principles and ambitions for ECT’s land-use developments are defined in the search and development phases of the project, so it is essential that biodiversity considerations play a central role during these phases. The purpose of this guidance is to propose ways and means to deal with this.

The projects carried out by ECT must comply with the law in force, both in terms of the Code de l’Environnement and the town planning code, the Code de l’Urbanisme. The objective of these guidance sheets is to propose a proactive approach that makes it possible to go beyond the requirements of the regulations. Projects carried out by ECT are well suited to taking biodiversity into account and promoting it, because the goal of the projects is to transform industrial or degraded sites into multifunctional developments that favour societal and environmental well-being.

Biodiversity can thus be taken into account at each stage of the development of a project.

Prepared in a ‘guidance sheet’ format to form a guide for the use of ECT’s development departments, this methodology is intended to be applied in a practical way and to evolve to reflect user feedback.

A reminder of the 9 commitments in the charter co-signed by ECT and Humanité & Biodiversité:

FOCUS 1: Fully realise the potential of ECT sites for promoting biodiversity

E1 – Incorporate biodiversity issues into the strategy of the business, and take advantage of the development of ECT projects to achieve positive initiatives for biodiversity, from the search phase up to completion and subsequent follow-up.
E2 – Adopt a regional vision, and combat the fragmentation of landscapes, reduction in natural soil cover and loss of biodiversity. ECT’s sites are an opportunity to increase the area favourable to biodiversity and to work on reinforcing ecological continuity.
E3 – Develop a shared vision across the Group so as to incorporate all the environmental elements, and the interdependence between man and nature, into the design, execution and follow-up of projects.

FOCUS 2: Provide education concerning biodiversity issues, and make people aware of the possibilities that ECT sites offer for biodiversity

E4 – Inform, train and mobilise personnel (both administrative and operational) concerning biodiversity issues at every stage of land-use developments (invasive species, protected species, etc.) and make them aware of the potential and opportunities presented for biodiversity of ECT’s sites.
E5 – Work with the interested parties (local authorities, town halls, local bodies, residents, associations, etc) to incorporate biodiversity issues into the design of the projects. There may be room to create a charter with the various interested parties for a particular project.
E6 – Promote full consideration of biodiversity on all sites, and communicate as much as possible concerning the issues of biodiversity, in particular by highlighting and developing flagship initiatives, increasing awareness and informing other users of the sites about the importance of conserving biodiversity.

FOCUS 3: Participate in the development of knowledge about biodiversity

E7 – In the context of scientific research programmes relating to biodiversity, and to meet the needs of associations, ECT makes available those sites that the business believes are of interest for the development of knowledge relating to biodiversity issues.
E8 – With a view to increasing knowledge of biodiversity, ECT develops partnerships, to ensure follow-up so as to understand changes in biodiversity and to adapt initiatives for the conservation and protection of the living world.
E9 – So as to allow for the dissemination and organisation of scientific knowledge relating to biodiversity, ECT undertakes to collect data that is relevant to biodiversity, regional policies, the circular economy, regional development and the consolidation of resources. This data, acquired in the context of projects pursued by ECT, will be placed at the disposal of public research programmes working in the fields mentioned above.


About the Humanité & Biodiversité association

Humanité & Biodiversité is an association which has the primary purpose of reinforcing awareness and consideration of all the synergies and inevitable links between humanity and biodiversity. In particular, it works for the conservation of diversity of living things and to promote the incorporation of biodiversity into all fields of activity, taking economic and social issues into account.


An external dock reduces unloading times by more than 80%

In operation since the end of 2019, this innovative solution makes unloading very fast and safe. 

Unloading now takes 8 minutes instead of the previous 45 minutes.

See video on the customer benefits and other advantages of the unloading dock.




The “EarthMakers” group commissions its demonstrator of fertile substrate that is 100% recycled, local and community-based.

On the Lil‘Ô site in Île-Saint-Denis (93), the “Faiseurs de Terres” or “EarthMakers” roll out their fertile substrate pilot scheme or demonstrator. The EarthMakers group is made up of Neo-Eco, Halage and ECT and it pools their skills and resources. The objective: To prove the process of producing a fertile substrate; a growing medium consisting entirely of recycled products. It’s made from inert soil, crushed concrete and compost from green waste.

The EarthMakers firmly believe that this fertile substrate, which is recycled, local and community-based, should become the growing medium for ‘greening’ the regions, and that it will be an important driver for the development of training and jobs.

Proving the process of producing the fertile substrate

This demonstration facility is co-financed by Plaine Commune and the EarthMakers. It’s the fruit of two distinct initiatives – Plaine Commune’s consultations and reflections on urban metabolism, and more specific discussions between the three members of the consortium about ‘technosols’.

The goal of this initiative is to carry out experiments and testing, and to establish where, when and how to create a fertile substrate. This substrate is to meet national standards and to be able to satisfy different requirements for use in green spaces and natural spaces. This experimental pilot scheme will be used to create a technical and scientific framework.

The EarthMakers training programme is an integral part of the project. It’s a programme of skills training aimed at people doing work experience. Training is a full part of the pilot scheme and represents its human resources.

A project to promote re-planting in the regions

This pilot scheme forms part of a ‘circular economy’ approach to materials and planting in urban areas. The fertile substrate produced by the EarthMakers is derived entirely from recycled materials:

    • Soil and crushed concrete from urban construction sites.
    • Compost made from plant waste, again from urban areas.

One goal of the pilot scheme is to ensure strict traceability for the product, all the way from the producer of the waste to the site where the product is used.

Lastly, through these experiments the EarthMakers intend to produce fertile substrate locally, as part of the urban metabolism for the Île-de-France region. The substrate is to be the growing medium for greening both large and more modest regional projects, thus avoiding the ecological own-goal of importing topsoil on a large scale.

For more about the other members of the group, see:


Akuo Energy and ECT, through their subsidiary ACT-E, built the solar power station at Annet-sur-Marne. Construction work for the solar park started in 2019 and finished in summer 2020. Production of electricity started from August 2020.

Installing the solar park on landforms created with spoil made it possible to optimise the positioning of the photovoltaic panels. This is an important asset for solar energy developments in the Île-de-France region.

The 44,000 solar panels of this power station can produce enough electricity to supply 3,700 homes. That represents the consumption of 10,000 residents, making Annet-sur-Marne a green energy town. 

Explore the ambitions of this renewable energy site.



ECT is proud to present its latest completed project: A stadium for mountain biking and trials riding at Epône in the département of Yvelines (78)

The work was carried out between June and September 2020. Thanks to the provision of excavated soil from the construction & public works sector in the western Paris area, it took only a short time.

This project, backed by the council of Epône, was constructed on land belonging to the commune. The site was designed in consultation with ORC Epône, the local cycling group for mountain biking and trials riding, with the aim of creating the first complete stadium for trials riding and mountain biking in the Île-de-France, for training and competitions.

The construction of workout facilities for trials riding and training tracks for mountain biking had to be done accurately and to specification. The teams worked together to produce the right outcome. 

ECT’s fertile substrate – Urbafertil – was used to restore vegetation to the site

This development also stands out at as a site where ECT has made use of its fertile substrate, “URBAFERTIL”. Created on site, this growing medium recycles inert soil mixed with compost made from green waste. At Epône, the use of this ‘technosol’ made it possible to deal with the absence of topsoil (and to avoid bringing it in from elsewhere) when finalising the planting scheme.

Explore this completed project in video by clicking here.

Release of book “TERRES – Sols profonds du Grand Paris”, a work by the photographer Anne-Marie Filaire

In 2019, the photographer Anne-Marie Filaire explored six sites being operated by ECT. Today, ECT is very proud to announce the appearance of the book resulting from her investigations.

Every year, 22 million tonnes of soil are excavated for construction projects within the capital and as part of the expansion of the boundaries of Paris.

Our collective mental image when we hear the words “excavated soil” is the imposing appearance of the spoil heaps in former industrial areas of Nord-Pas-de-Calais, so we have an understanding of the potential visual impact and environmental issues. Here, however, we’re not dealing with black soil extracted from coal mines but with diverse and colourful soils from the lower levels of multiple public works in Greater Paris, and particularly those from railway tunnel operations for the new Grand Paris Express.

There are three challenges. Tracing, sorting and analysing all these soils as they move from one place to another; making fertile those which can be; and relocating them in consultation with communities and local authorities. They can become parks, woodland, sports fields, land for urban agriculture or zones for free development or biodiversity in the fields.

Anne-Marie Filaire chose to photograph the soil as it reaches the development sites, and she explored six sites currently in operation in Greater Paris. She shows the moments when the soil is tipped and spread out, and the landforms as they come into being under the eyes of the engineers. She provides an interpretative vision that places the sites firmly in the context of the wider landscape, navigating between the hundreds of trucks and site vehicles, returning several times to reflect life on the site on days of mud, fog or drought. It’s a valuable photographic work, committed to showing a landscape in transition, before it takes on its new form. It is, she says, “a study of the future”. Her photographs relate the intrinsic beauty of the sites and the beauty of their raw material, and reveal their shape.

Apart from purely technical challenges, the total amount of soil amassed is also, for an artist, an object of potential poetry, a place out of time, a temporary world which will fade away to leave place for a new landscape. From this point of view, it’s also an artists’ book; many connections with contemporary art, and especially Land Art, are apparent.

Anne-Marie Filaire is a photographer. She has been preoccupied with the question of landscape for more than twenty years, starting with several series taken in her native region of Auvergne on behalf of the Observatoire Photographique du Paysage programme. Since 1999, she has been engaged on a long-term project in the Middle East, Israel and West Africa to recount the factual reality of interminable wars and the very personal preoccupations of populations confronted by geopolitical upheavals. Her work is a poetic exploration of man face to face with his environment. In 2017, she exhibited and published a work on the demarcation zones (Zone de Sécurité Temporaire, Textuel/Mucem).

Claude Eveno is a film-maker, town planner and writer. He founded and directed the journal of the Cahiers du Centre de Création Industrielle (Notebooks of the Centre for Industrial Design) at the Pompidou Centre in Paris. He taught in the department of town planning at the Paris VIII university and at ENSNP, the École Nationale Supérieure de la Nature et du Paysage (university for nature and landscape engineering) at Blois. He has also been a programme adviser for France-Culture and director of studies at ENSCI, the Ecole Nationale Supérieure de Création Industrielle (university of industrial design). He is the author of many works: recent publications from Christian Bourgois Publishing are Revoir Paris or ‘To see Paris again’ (2017) and L’Humeur Paysagère or ‘Reflections on Landscaping’ (2015).

A book from Éditions La Découverte / Dominique Carré

A literary event reported by the press 

Logo presse : Libération

“Town planning: Construction spoil makes fine soil for all purposes”, read the article, here.

Listen to the radio broadcast of Homo Urbanicus from 14 September 2020, Earth by Anne-Marie Filaire, here

“The deep soils of Greater Paris”: Read here

“Photo Terres”: Read here

In time for the autumn literary publishing season – ” La Terre dans tous ses États” (‘Earth in all its States’)

In 2019, a first conference was held about upcycling soil, seen through the lens of urban engineering

The EIVP (City of Paris School of Engineering), a leading university for urban engineering, and ECT, the French leader in the upcycling of excavated soil, organised the first conference in April 2019, “La Terre dans tous ses États” or “Earth in all its States.”

This conference gave rise to the idea of a collective publication to be published by Presses des Ponts. This work was put together under the direction of Bernard Landau, president of EIVP’s department for teaching and research into public space, planning and mobility, and Youssef Diab, EIVP’s director of science. It has a preface by Antoine Grumbach, winner of the Grand Prix de l’Urbanisme town planning award, and president of the scientific committee of the ECT/EIVP academic chair.

1001 ways to upcycle soil

Every year in the Paris region, nearly 10 million m3 of inert soil, the equivalent of four Great Pyramids of Giza, are produced by public and private works – a quantity that is an indicator of the sheer volume of public works currently happening in the Paris metropolitan area.

This work, arising from the conference “Earth in all its States”, reveals the thousand and one ways in which inert soil can be upcycled. It’s a golden opportunity to shine a light on the principles of ‘circular economy’ and ecological mitigation that are at the heart of these often unsung activities.

Soil is a very valuable resource

This publication explores a wide variety of solutions, ranging from remediation of polluted zones and backfilling of mines and quarries to the creation of planted parkland, the restoration of farmland, the transformation of soil into a construction material or topsoil, and the creation of works of art or works of urban engineering.

Now available from all good bookshops 

Re-greening the Bois de Vincennes using a fertile substrate: What the press say

ECT initiative boosts the upcycling of inert soil.

The business offers non-built developments to communities and local authorities, by using excavated soil. Since 2019, it has been producing a fertile substrate that is 100% recycled, called Urbafertil.

Produced purely by recycling, Urbafertil is the result of mixing inert soil with compost from green waste. It’s a very topical illustration of ‘circular economics’ for soil from the construction & public works sector, putting it to work to re-green urban spaces. There are well-attested benefits for:

  • The climate,
  • The creation of islands of freshness,
  • Soil permeability, enabling it to absorb rainwater
  • And for biodiversity.

This ‘technosol’ offers an alternative approach to importing topsoil, being both ecological and economical.

In the Bois de Vincennes, the city of Paris has applied this Urbafertil approach to the Esplanade Saint-Louis, creating a technosol that meets a complex technical specification.

The media came to see the on-site fabrication process.

“Fertile technosol for the esplanade of the Château de Vincennes”: Read here 

 “Greening the surroundings of the Château de Vincennes with inert soil”: Read here

V3C Environnement - Parution dans Recyclage Récupération Magazine

“A right royal site for Urbafertil“: Read here 

Matériel & Paysage | Le magazine de référence des paysagistes

“A fertile substrate created from inert materials”: Read here : le média professionnel des agricultures urbaines

 “A responsible solution for greening the city”: Read here

To find out more about Urbafertil, click  here

Nature in the city: The Arboretum Park at Moissy-Cramayel

To coincide with European Sustainable Development Week, ECT returns to the Arboretum Park at Moissy-Cramayel in the département of Seine-et-Marne. The Park was opened to the public a year ago. This landscaped area, which was entirely developed by ECT using excavated soil from nearby sites of the construction & public works sector, offers both natural space and places for sports activities and relaxation.

A video looks at the development concepts that came into play, and local biodiversity needs on a site where ECT has planted more than 11,000 trees.

Media focus on ECT’s centre for the biological treatment of soil polluted with hydrocarbons

ECT’s centre for the biological treatment of soil contaminated with hydrocarbons opened 3 years ago at La Courneuve. The first and only indoor facility of this type in France, the centre can now treat 180,000 tonnes of contaminated soil per year. It often attracts the attention of the media and experts. Here’s an overview of recent visits.

July 2020: Construction Cayola

A complete written report and video report by the journalist Charlotte Divet about how the centre works. 

August 2020 : Convergence: symposium of iXi experts

Experts from iXi came to the ECT treatment centre to better understand the treatment and re-use of contaminated soil. Guillaume Paradis of ECT replies to questions from Pierre Lebrun of CPA-Expert. This report comes from the Convergence symposium organised by the iXi network.

and in January 2020: France Inter

We never get tired of listening to the dynamic radio journalism of Juliette Prouteau, who devoted an episode of La Terre au Carré to the soil of Greater Paris at the ECT soil treatment centre

The series of reports is available in podcast form, here

At Epône, in the département of Yvelines, ECT completes a stadium for mountain biking and trials riding in 4 months

A stadium for mountain biking and trials riding, the only facility of this type in the Île-de-France region, completed in 3 months between June and October 2020

On 15 June last year, ECT announced the opening of a new site to upcycle inert soil excavated in the département of Yvelines and the commune of Epône.

That was how this project, supported by the town hall, began, and so commenced, on land belonging to the commune, ECT’s development of the first site for trial riding and mountain biking in the Île-de-France region. 

Three months later, we could look back on a project where the works were being finalised to offer Epône and its cycling club ORC Epône this stadium for training and competition – the only such place in the Île-de-France. The ORC club will now have 1000 m² of installations for training and preparing for future inter-regional competitions.

4 key stages in the works carried out by ECT

The work got under way during the summer, in several stages:

  • The provision of inert soil from sites of the construction & public works sector of western Paris

Starting from the month of June, the provision of soil made it possible to extend the area and remodel its surface to be the site for various workout installations for trial riding and training tracks for mountain biking.

  • Laying the fertile substrate 

The fertile substrate manufactured on site by ECT is a growing medium that makes it possible to avoid importing topsoil. This substrate is a fertile mix of inert soil and compost made from green waste. It will be the growing medium for trees on the sloping parts of the site.

  • Finishing the landforms and creating the stadium

The expertise of ECT’s bulldozer drivers made it possible to create the landforms of the site with great skill and precision, and in particular the shapes of the banked bends.

  • Installing the workout facilities 

Currently, the workout installations are being placed in accordance with a specific technical brief from the ORC Club. The area of nearly 5 acres has 150 m² of rock garden, 300 m² of trials zone and 600 m² of pump-track.


“Soil from construction sites in the Yvelines used for a trials riding terrain”


“Epône will be the location of the first site for mountain biking and trials riding in the Île-de-France”


“A large-scale site for riding trials “


Site visit by the mayor of Epône in July 2020 – © ECT 


The Arboretum Park – a park accessible to people with all kinds of disability

A park open to all – families, sportspeople and people with disabilities.

The Arboretum Park at Moissy-Cramayel, in the département of Seine-et-Marne, was developed over a period of eighteen months by ECT using excavated soil from nearby sites of the construction & public works sector.

To determine how best to meet local needs, this park was a true eco-design project between ECT and the town of Moissy-Cramayel. The town council was keen to make the park accessible to all residents, including those with all kinds of disabilities.

That’s why there was a process of reflection and consultation, jointly undertaken by all those involved, for every kind of disability. That’s how the park became a great shared area for outings, accessible to all and proudly aiming to get the ‘Tourisme et Handicap’ label.

That means providing facilities suitable for this section of the public. Half of the routes are accessible to all, and they make it possible to visit the whole park. The signage, and the access to signage, have been developed specifically with this in mind.

A video looks at the way this community need was reflected in the design.

ECT and Akuo officially opened one of the two largest solar power stations in the Île-de-France region

Opening of the solar park at Annet-sur-Marne on 29 September 2020

14 November 2019 saw the official installation of the first solar panel of the solar park, and ten months later, ECT and Akuo inaugurated the “Les Gabots” photovoltaic power station, located in the commune of Annet-sur-Marne.

One of the largest solar parks in the Île-de-France region

The solar park, consisting of 44,000 photovoltaic panels, covers 45 acres. It will save 847 tonnes of CO2 emissions per year. Its output will meet the electricity needs of 3,700 homes, or about 10,000 inhabitants. It makes the commune of Annet-sur-Marne (with 3,300 inhabitants) a net producer of electricity.

Giving a second life to derelict land

The power station is the fruit of a partnership between Akuo and ECT through their jointly-owned subsidiary ACT-E. The solar panels are installed on landforms made up of inert soil, which makes it possible to optimise the angle of their slopes, thus giving the site a second life. Akuo and ECT intend to repeat the “Les Gabots” project on other sites in the Île-de-France region. The goal is to expand, in particular the production of solar energy, and achieve a peak output of 100 MW from the sites operated by ACT-E.

A crowdfunding campaign has been launched and is open to all citizens

Apart from participatory investment by regional authorities, Akuo and ECT have decided to give all citizens the opportunity to benefit from the profitability of the “Les Gabots” solar park by letting them invest in the refinancing of the project via a participatory loan on the AkuoCoop digital platform. More than €500,000 has been collected in less than 30 days.

This is intended to promote investment by individuals in ‘energy transition’ with a connection to the regions directly involved. Since it was set up, the platform has made it possible to collect more than €7M in just 4 years, to finance 13 solar power stations for the production of green energy.

Jean-Philippe Dugoin-Clément, Vice-President of the Île-de-France Region: This ambitious development is part of the expansion of our Region into the domain of renewable energy. It’s an iconic project made possible by investment from the Region via Île-de-France Energies with a stake of €450,000. The bottom line is that this is our solar plan in physical form”.

Stéphanie Auzias, mayor of Annet-sur-Marne: “Annet was keen to be part of the process of ‘energy transition’ that is so urgently needed […]. Annet now has one of the most substantial solar parks in the Île-de-France region, and its maintenance costs are offset by grazing animals on the site. We’re participating in sustainable development”. Christian Marchandeau, former mayor and now deputy mayor of Annet-sur-Marne, concludes: “This solar park is our commune’s greatest asset.”

Eric Scotto, chairman and co-founder of Akuo: “This power station, born from our partnership with ECT, is a source of pride for the Akuo group because it’s our first photovoltaic power station in the Île-de-France region, and to date it’s one of the largest there. The quality of its visual insertion into the landscape is exceptional. It makes us fully part of the dynamic of the mobilisation plan for the ecological transformation of the Île-de-France region being driven by the Region’s president, Valérie Pécresse. We firmly believe that the development of photovoltaics in the Île-de-France region will expand significantly in the coming years, especially on land which is derelict or not in a natural state”.

Laurent Mogno, chairman of ECT: “ECT’s development model is to identify land needing to be enhanced and to devise projects for open-space developments involving the upcycling of excavated soil from sites of the construction & public works sector in the Île-de-France region, and doing so in full consultation with local representatives. We felt it was important to broaden the range of our services to communities and local authorities by adding solutions for renewable energy. Bearing in mind our skills in creating and shaping soil to give them a suitable slope, we were naturally attracted by solar energy. ECT is very proud of this first joint operation with Akuo, which has resulted in this powerful solar park at Annet-sur-Marne”.


[Press release] Akuo and ECT declare the ‘Les Gabots’ solar park open

On 29 September 2020, Akuo and ECT officially opened the “Les Gabots” solar park at Annet-sur-Marne (Seine-et-Marne)

This power station, with its 44,000 solar panels, covers 45 acres of former ECT landfill, making it one of the two largest renewable solar energy sites in the Île-de-France region. Its output equates to the energy needs of 3,700 homes, making Annet-sur-Marne a net producer of green energy.

See what the press had to say by clicking here.


In the commune of Epône (78) ECT has worked with the bike club ORC Epône to create the first sports facility in the Île-de-France region for mountain biking and trials riding.

The club has more than 70 members. It does various forms of the sport (cross-country mountain biking, trials riding, cyclo-cross and adult sport touring). The ORC is designated as a bike school and competition club by the national governing body, the FFC or Fédération Française de Cyclisme.

4 questions for ORC Epône, for its president Franck Prestat and vice-president Philippe Gaudens.

Logo ORC club Epône

Can you tell us about the various branches of mountain biking and trials riding?

Trials riding is done with a specific bike (with no saddle). It’s a spectacular sport, which requires flexibility, agility and balance to get round an obstacle course without putting a foot on the ground.

The mountain bike, which is much more common, is a bicycle for use on rough ground, off metalled roads.

ORC Club Epône - Vélo

What makes ECT’s involvement interesting for the ORC?

ECT’s involvement is what makes the project possible. Bringing inert soil to the site is financing the new developments. It means that the club will become the first in the Île-de-France region to have a terrain specifically for sport on two wheels – mountain biking and trials riding. It will also be the ideal location for hosting competitions.

How does the design of the new site work with bringing in soil from outside?

It’s bringing in inert soil that provides the opportunity to transform flat terrain into a very varied terrain almost like a stadium. It will make it possible for us to use the entire area of the terrain, and make the technical sections better spread out, more varied and more numerous. The height of the terrain lets us offer climbs and descents, and gives us more options in terms of the creation of technical sections.

What do you want the club to get from this new project?

The project aims to meet the needs of our two branches of cycle sport. Trials riding experts are always looking for new technical zones with obstacles, to add variety to their training, gain experience and improve their performance in competitions.

The total redevelopment of the site will let us completely rethink the zones so as to achieve better, more progressive technical levels. They will also delight our riders with new routes, whether using existing obstacles or new ones.

For mountain biking, we used to have to go elsewhere to find terrain with good training qualities.

Thanks to this project, we will have a wide range of technical sections for all levels right here on this site.

That means we’ll become more efficient in training our youngest members, as it will limit the travel distance to technical sections and at the same time increase safety (no roads to cross, etc.).

And aside from our youngest members, having a selection of benchmark technical sections means we’ll be able to assess riders as they progress through the various levels, and make up our groups accordingly – and prepare our competitors for the level of technical achievement that is expected.

Our adult mountain bikers will also be able to perfect their technique on a terrain that sets the standard.

Read more about the future mountain bike/trials riding facility at Epône.




A site to be rehabilitated 

At Roissy-en-Brie in the département of Seine-et-Marne (77), ECT is opening a new site on 27 July. The re-use of excavated soil will restore and conserve degraded farmland. Before starting, ECT cleaned up the site, removing waste that had been tipped there. The purpose of this development is to restore the land’s vitality. It will create an area of farmland, and areas devoted to biodiversity.

Conserving and improving an area of farmland

It’s about restoring agricultural holdings for their original purpose. This means restoring the productivity of the soil. The process of rehabilitation thus requires appropriate grading to create fertile soil, for a new agricultural area extending over 37 acres. When our involvement is over, the farmer will be able to resume operations on this land, and its agricultural role will have been secured for the future.

Recreating ecological continuity

The development recreates ‘ecological coherence’. It supports and is consistent with the living past and present of the commune. The goal is to ensure the future of natural habitats, with:

  • Conservation of existing natural environments (wetlands, small lakes, watercourses and neighbouring woods).
  • The reconstitution of a mosaic of environments, restoring ecological corridors and biodiversity in this district.

The project in figures

  • Launch date for the project: July 2020
  • Period of works: 2 years
  • Restoring 37 acres and returning it to agriculture
  • Creating ecological developments of grassland and wetland over 8 acres
  • Planting 11 acres of wooded slopes.

Read more about this restoration of farmland


On 27 July 2020, ECT opened a new site at Roissy-en-Brie in the département of Seine-et-Marne (77).

Bringing soil to this site will restore the productivity of an agricultural holding.

The works will last for 2 years.

For access to the Roissy-en-Brie site, prior approval is needed from the ECT’s Reservations department.

The site is equipped with scanners to read ECT’s electronic delivery tickets, as part of our contactless initiative for fully paperless working.

For all information about the terms for discharging soil (address, soils accepted, opening hours, truck types) click here.


ECT is a member of UNEV (the national union of upcycling operators or Union Nationale des Exploitants de la Valorisation). In this video, UNEV’s president Albert Zamuner puts the spotlight on the sectors represented by UNEV.

He describes the work of its members, who have been very active during the health crisis to ensure that the construction & public works sector and local authorities could keep going.


[IN THE NEWS] “Covid-19: A good time to reflect on strategy”

Laurent Mogno, chairman of the ECT Group, spoke to Franck Boittiaux of

This discussion was an opportunity for the ECT chairman to give an initial financial assessment of lockdown and social distancing measures, and to explain the business’s approach to paperless and online communications with its customers in the construction & public works sector.

What are the consequences, especially in financial terms, of the health crisis and lockdown on the activities of your business, and the way you relate to your customers ?

“The consequences have been significant. We shut down all our sites from 17 and 18 March, while we set up new working procedures so as to safeguard the health of our and our customers’ workforces. We took about a week to re-open three sites, from 24 March, well spread across the Île-de-France in the 77, 91 and 95 départements. These sites seem well suited to ‘no contact’ working, and have adequate reception capacity, given that the ECT model consists of receiving soil excavated by construction and public works operators and offering solutions within a short travel distance.”

What steps did you have to take during lockdown ?

“Wherever possible, we shifted workers to teleworking, and set up strict procedures for the operational sites, with absolute ‘no contact’ working, in other words without using paper vouchers, without contact between members of our workforce or with customers, and with no shared equipment, whether that’s a computer keyboard or a bulldozer ! “

How long do you think it will be before you can get back to a normal level of working, or even to get back to the 2019 level ?

“Probably not before September, and we will continue to monitor the situation thereafter because of the effects of Covid-19 and the municipal elections, so that we don’t experience a drop-off in 2021 arising from a lack of construction works, given that the various sectors involved are focussing very much on events unfolding today, and in particular on additional costs and the drop in productivity. Negotiations between the project supervisors and the construction and public works businesses on these subjects are complex and continually updated. As far as we are concerned, we have decided to absorb the costs arising from the new procedures.”

How has this period been for you? Has it given you an opportunity to think about possible reorganisations? Or changes to working methods ?

“It has been an opportunity to accelerate the process of going fully paperless, which was already at an advanced stage. We’re finalising our IT solution, which will be operational at the beginning of June and which will have an effect on productivity. It has also been a good time for reassessing the strategy of the business, especially in terms of the environment and biodiversity, because on 22 May the European Union published a roadmap which, in particular, promotes urban nature via the creation of plans for an ecological approach to urban and near-urban spaces in communes with more than 20,000 inhabitants, by the end of 2021. It’s a very interesting development for us, because its goal is the landscaping of spaces like those we make. Mankind needs nature in the city !”

See the full article by clicking here


Developing the first site for mountain bike and trials riding in the Île-de-France region

ECT opened the new site, in the Yvelines département and more specifically in the commune of Epône, on 15 June. The site upcycles inert soils from construction works in the west of the Île-de-France region, and it will include the first mountain bike and trials riding venue in the Île-de-France.

A quick introduction to the two sports :

  • ‘Trials riding’ is done with a special bike that makes it possible to tackle a series of different obstacles without setting foot on the ground.
  • Mountain biking, which is better known, consists of learning to handle a bicycle on rough ground from an early age.

A sports development in the Yvelines département

This stadium project has been “eco-designed” in conjunction with the club ‘Off Road Cycliste d’Epône’ (ORC Epône) and the Epône town council. The aim was to reconfigure the sports facility to provide the club with new technical zones and obstacles so as to give more variety to their training, increase their experience and enhance their performance in competitions.

Reshaping the site involves providing soil, making it possible to extend the mountain bike and trials riding area by nearly 5 acres. The development is fully financed by upcycling the soil.

The project will create a number of different zones. There will be technical zones with workout installations, ‘pump track’ and rock garden zones, and tracks with moguls and bends.

The project in figures

  • Project start date: June 2020
  • Duration of works: 4 months
  • 4.7 acres of training and competition terrain
  • 150 m² of rock garden, 300 m² of trials zone, and 2 pump track zones of 300 m²

Read more about the future cycle trials stadium at Epône.

New ECT site at Epône in the département of Yvelines (78)

ECT starts work at a new site at Epône, in the département of Yvelines.

The purpose of this site is to create the first mountain biking and trials riding centre in the Île-de-France region. It will be developed by upcycling soil excavated during construction works in the west of the Île-de-France region. The works are expected to last four months.

All access to the Epône site must be pre-booked with ECT’s Reservations department.

The site will also be equipped to scan e-tickets for soil deliveries, as part of our ‘Full Dématérialisation’ (Fully Paperless) initiative.

For all information about the conditions for access to the site (location, types of soil accepted, opening times, truck types), click here