Category: Uncategorized

Transformation of the former illegal landfill site underway

On Thursday 19 May, ECT organised a visit to the rehabilitation site at Boissy/Puiseux with the Prefect of Val-d’Oise in attendance.

At the end of January 2022, clean-up operations began at the former illegal dump. The management, sorting, and evacuation of the 14,000 m3 of waste is an essential step in the transformation of this site.

The visit enabled Philippe Court, Prefect of Val d’Oise, Michel GUIARD, Mayor of Boissy-l’Aillerie, Thierry THOMASSIN, Mayor of Puiseux-Pontoise, as well as members present from the municipal councils, the Cergy-Pontoise Urban Community and the Val d’Oise Departmental Council, to see the progress of the work. They were also able to see the advanced state of waste removal and efficiency of the sorting platform, carried out by the company REVA.

It was an opportunity to present to the landowner and vice-president of the Val d’Oise Chamber of Agriculture and the president of the French Vexin Regional Nature Park, the future points of interest of the landscape, as well as the environmental renewal and agricultural redevelopment plan.

The site renovation project is financed by the inert soil inputs made by ECT, which will begin in the second half of 2022.

The Val d’Oise Prefecture and Gendarmerie Nationale discussed the challenges of combating illegal dumping, a major environmental threat.

Take a look ECT’s video showing the transformation of the site.

Opening of a new ECT site in Porcheville (78)

ECT opens a new site in Yvelines, Porcheville (78).

The purpose of this site is to secure and enhance the southern entrance to the Porcheville leisure park to improve the residential environment and offer a new place for relaxation and leisure. This new space offers various facilities:

  • A viewpoint offering 180° views of the surroundings and leisure centre
  • Two landscaped terraces, overlooking the children’s play area
  • Two anti-intrusion gates to protect the entrance to the new space

Access to the Porcheville site

To access the Porcheville site, it is mandatory to have validation from the ECT reservation team.

The site will also be equipped to scan e-vouchers for offloading, as part of the implementation of our full dematerialisation and land traceability approach.

For more information on the conditions of access to the site: address, approved land, opening hours, type of trucks etc, click here

Creating an urban forest in Lens (62) with the EPF Hauts-de-France (Public Land Institution)

The urban forest in Lens: 3 questions to EPF Hauts-de-France

In the municipality of Lens (62), the project to create an urban forest has been taking shape since September 2021. This project, led by the EPF Hauts-de-France, also includes the City of Lens and the Lens-Liévin Urban Community, in collaboration with the Hauts-de-France Region through the French Regional Forestry Plan. The EPF Hauts-de-France is represented by Guillaume Lemoine, development officer and biodiversity-ecological engineering referent.

Could you introduce us to the EPF Hauts-de-France?

The EPF Nord-Pas-de-Calais was created in 1990, to implement the requalification of mining and industrial wastelands. The region was hit very hard by the coal, metal and textile crises. A State public institution operationally implements a policy shared by the State and the Region. Its action for the restoration of the living environment and urban renewal is based on 7 major axes, including:

  • Development of the land supply for housing and accommodation.
  • Support for major regional economic projects.
  • Strengthening of central areas.
  • Improving the living environment and biodiversity.
  • Management of natural or technological risks.

In August 2021, it became EPF Hauts-de-France.

Could you introduce us to the Van Pelt wasteland and its restoration project?

These were abandoned factories and buildings on the outskirts of the city. EPF Hauts-de-France’s involvement was to demolish the site. Then to recycle demolition materials and treat concentrated soil pollution. The Lens city council’s order was to restore value to this space located on the edge of the mining ring road. Creating an urban forest on this wasteland is part of the Region’s Reforestation Plan to combat climate change. This renaturation will also be part of the Chaîne des Parcs, a vast metropolitan project.

Why did you decide on a project with ECT?

Once the EPF is awarded the project, there is little budget. And from the outset, the reuse of backfill and the circular economy of land from construction sites are mentioned. In order to create this urban forest, the EPF organised a call for expressions of interest. ECT responded and the project took shape in a great collaborative dynamic.

Renaturation of an unauthorised landfill site gets off to a flying start

Site clean-up, a key step in healing the landscape

In Boissy l’Aillerie and Puiseux Pontoise, in the Val d’Oise, clean-up operations have begun. This is an essential step in moving to the landscape restructuring phase. The disposal of the 14,000m3 of waste started at the end of January 2022. This should last between 4 and 6 months. ECT bears the cost of this disposal and treatment. 

A look back at the creation of one of the largest unauthorised dumps in the Ile-de-France

  • December 4, 2017: Start of illegal land occupation and intensive dumping activities.
  • May 5, 2018: The Prefecture puts an end to illegal dumping. The entrance to the site is secured by the installation of concrete blocks at the entrance to the farm road.
  • In 6 months: 6,000 tonnes / 14,000 m3 of waste was deposited on the site.

The unauthorised landfill site that has developed in the municipalities of Boissy-l’Aillerie and Puiseux-Pontoise has caused a lot of damage. It could lead to irreparable degradation of the site if no action is taken.

Municipalities helpless in the face of illegal dumping

“The amount of illegal dumping has degraded the site. I would like to thank the Val d’Oise prefecture for taking charge of the case and finding a solution with ECT to restore the site. The fight against this scourge must be based on prevention, by strengthening surveillance and cooperation with law enforcement. Our small communes have no means of reacting to the treatment of unauthorised dumping, which is why it should be considered at the level of the inter-municipalities
Thierry Thomassin, Mayor of Puiseux-Pontoise

“300 people were occupying the premises in this case. The illegal dumping activities started very quickly, without any intervention to stop the waste traffic. The illegal dump lasted five months and the extensive degradation of the site left the municipality and the owner with thousands of tons of waste.”
Michel Guiard, Mayor of Boissy-l’Aillerie

Inert soil inputs for an ambitious project

A broad consultation was carried out: 

  • The private owner.
  • Cergy-Pontoise Agglomeration.
  • The municipalities of Boissy-l’Aillerie and Puiseux-Pontoise.
  • The Val d’Oise department.
  • The decentralised services of the State.

Thus, it was determined that the site had sufficient available surface area to provide an adequate volume of inert soil. The purpose? To carry out a qualitative, agricultural and landscape project. The reuse of inert soil provides ECT with financial capacity for the project. The challenge is precisely to balance the costs of waste disposal and treatment and the renaturation of the site with the volume of land received.

ECT has several tasks to carry out in the rehabilitation of the illegal dump:

  • Support in taking into account urban planning and environmental constraints related to the PLU (the local urban plan). In consultation with the Val-d’Oise (CD 95) and the State services.
  • Financial and technical responsibility for the removal and processing of waste.
  • Quality redevelopment of the site through a development permit. The development permit is examined by the municipalities. It is accompanied by an environmental authorisation request (Water Law in France) examined by the State services.
  • The disposal and treatment of this waste.

An ambitious landscape restructuring project

  • The project provides for the reconstitution of agricultural areas and the recreation of a mosaic of natural environments (grassy, shrubby and wooded).
  • It takes into account, on a scale-up basis, the land, heritage and environmental constraints specific to the site and the NRP framework.
  • Given the current instability of the slope, the project proposes to consolidate it by filling it in, while at the same time restoring suitable hydraulic management.


An ECT site becomes a favourable environment for the Eurasian stone-curlew bird


ECT teams and DiRiF ecologists have recreated a nesting area for the Eurasian stone-curlew bird on the ECT site in Villeneuve.


The former landfill site will give way to an agricultural, landscape and hydraulic renewal project within the framework of the Parc Naturel Régional du Vexin Français.

An ECT site becomes a favourable environment for the Eurasian stone-curlew bird

Meeting with Eddie Farcy-Jirot, ecologist at the Direction des Routes d’Ile-de-France (DiRIF)


The Eurasian stone-curlew is a bird with large yellow eyes and a shrill cry. This migratory bird is a protected species in Europe. It is on the global and European red lists of threatened species. The Ile-de-France Roads Directorate and ECT have been working together for several years to establish a sanctuary compensation area for this bird. By creating a favourable environment for the bird to establish itself. Where? On the ECT site for the recovery of excavated soil in Villeneuve sous Dammartin (77).


What background is there to the creation of a compensation area for the Eurasian stone-curlew at an ECT site in Villeneuve-sous-Dammartin?


As part of the work to build the Roissy East bypass, which is an extension of the Francilienne and should provide the airport with new access, particularly in the context of the 2024 Olympic Games, the ecological inventory revealed the presence of Eurasian stone-curlew birds. At the roadworks site, it was not possible to preserve all of the areas suitable for the Eurasian stone-curlew, so it was important to create a new area suitable for this species.

This bird likes thermophilic environments. That is to say, dry, rocky environments, rather exposed to the sun and therefore warm. It is a crepuscular and nocturnal bird. We don’t see it much, but we can easily recognize it by its cry. It is a migratory bird and is a protected species at a European level. It has the particularity of nesting in the crevices of the ground. This makes the eggs and chicks very vulnerable. It has almost disappeared from Germany and the Netherlands. There is therefore a strong heritage interest in protecting the species.  Indeed, the Plaine de France now appears to be the most northerly population boundary of the Eurasian stone-curlew in Europe.


Why did it choose the Villeneuve-sous-Dammartin site?

An ecological compensation area recreates a space favourable to the species. With the Aliséa design office, we sought to recreate an ecologically equivalent environment. This is why the ECT site in Villeneuve-sous-Dammartin seemed perfectly suited. It is located close to the original habitat. It allows the reproduction of a thermophilic environment. ECT was very sensitive to the issues at stake for the bird. The company agreed very quickly to dedicate 2 hectares. And it has created a favourable environment: a large, sunny, stony, sloping area, which can attract the Eurasian stone-curlew.

In order to create and perpetuate this ecological compensation site, an agreement was drawn up between the State and ECT. This agreement describes the ecological and environmental commitments linked to the compensation and establishes a 2-hectare sanctuary area for thirty years.


What did the annual monitoring of the area reveal?

The regulations governing this compensation area provide for annual monitoring. In 2020 and 2021, monitoring was carried out in summer, at dusk and night, and concluded that the stone-curlew was present, but in an area close to the one directly dedicated to it. The idea was to make the compensation area more attractive. The planned site was probably too exposed to predators.

The ECT teams have done a remarkable job and modified the site. It now has a profile that more closely resembles the bird’s original environment: an embankment of earth and rubble. Interestingly, three different areas have been remodelled by ECT, with varying degrees of exposure. In this way, ecologists will be able to observe the bird’s behaviour in this mosaic of environments. Ecological engineering is not an exact science. It is rather a science of hypotheses. Such a device will allow us to learn more about the bird.


And what do we hope for next?

All the teams hope that the stone-curlew will be attracted by the new facilities. And that we will be able to observe the bird during the next annual monitoring directly on the compensation area. The creation of sanctuary areas for an endangered species is in the interest of biodiversity in general. This is because these areas also become home to a cohort of other species, some of which are also in danger. Therefore, the efforts made for the Eurasian stone-curlew at Villeneuve-sous-Dammartin are also favourable for protected species that are fond of the same type of environment, such as the Oedipoda caerulescens, a blue-winged cricket, or the Little-ringed plovert, a bird that has already been sighted on the site.

Note: Eurasian stone-curlew is listed in Annex I of the 1979 EU Birds Directive. The 74 species classified in Annex I benefit from special protection measures for their habitats, which will therefore be classified as Special Protection Areas (SPA). These are endangered species, species vulnerable to certain changes in their habitat, species considered rare (low population or restricted local distribution), and species requiring special attention because of the specificity of their habitat, as well as migratory species that come regularly.


Assessing the environmental and societal benefits and impacts of ECT sites

ECT assesses the environmental and societal footprint of projects with a new tool

As part of its environmental approach, ECT uses an indicator for the design and construction of its sites. This indicator makes it possible to assess the environmental and societal impacts of its non-built development projects carried out with soil from construction sites.

The construction of the evaluation methodology was built through the involvement of all the company’s departments. And with the help of experts (sociologist, ecologist, farmer, acoustician, etc.) to guarantee a high level of robustness of the method.

An evaluation in 15 indicators 

The15 indicators cover a wide range of ESG issues. Environmental issues such as the protection of biodiversity or the reuse of excavated materials. And societal issues range from the well-being of populations to the support of local agriculture or the integration of the site into its environment.

They are divided into 5 categories:

  • the preservation of ecosystems
  • the fight against climate change
  • improving people’s well-being
  • support for the local and circular economy
  • the integration of the site into its environment

Each indicator has a specific assessment. The whole is aggregated and consolidated according to the project’s use typology.

These 15 indicators are operational, and ECT teams use them to assess the added value and impact of the project. This tool makes it possible to optimise design and management choices. It is also a means of providing the various stakeholders with a map of the value generated.

Preserving ecosystems

  • Surface Biodiversity: Measures the functionality of the habitats, the coherence with the surrounding environment and the contribution to the ecological functionality of the site’s surroundings. If a 4-season survey is carried out, measures the protection of threatened species on the site.
  • Infiltration & water retention: Compares the capacity of the soil to infiltrate stormwater before and after the development of the site and assesses the potential creation of additional water and flood management facilities.

Tackling climate change

  • Greenhouse gases: Measures the amount of GHG emitted/amount of soil reused on-site (or hosted), as well as the difference in sequestration between the initial and final state.
  • Freshness island: Evaluates the contribution of the site in terms of albedo, permeability and ground vegetation cover for cooling the surrounding urban areas.

Improving people’s well-being

  • Green spaces: Validate ECT projects that increase the ratio of green space. A green space is a space with plants in the open air, except for agricultural spaces.
  • Recreational equipment:  Evaluate the provision of facilities per individual, the quality of these facilities and the accessibility and complementarity of the offer about that of the municipality
  • Landscape insertion: Evaluate the integration of the site into its surrounding environment and the wider landscape, the diversity of planting and the work done on the external boundaries of the site

 Supporting the local and circular economy

  • Job creation: Estimate the number of jobs created for the operation and development of ECT sites, as well as the external jobs needed to manage the development once it is completed.
  • Land reuse: Assesses the site’s volume of reclaimed land per unit area, and the maximum land holding capacity of the site in absolute terms.
  • Local agriculture: Evaluate the project’s contribution to the increase in agricultural land and the eco-friendly or non-compatible production method used.
  •  Renewable energy: Evaluate the renewable energy production capacity installed on the site (photovoltaic, wind, methane) and their contribution to local energy needs.

Integrating the site into its environment

  • Noise pollution: Evaluate the level of risk of noise pollution linked to the activity on-site (arrival and departure of trucks, operation of machinery.)
  • Impact on roads: Evaluate the impact of heavy goods vehicle (HGV) traffic generated by ECT’s activity on roads that have not been designed to support such traffic and integrate the measures taken by ECT to improve the condition of the road (repairing, cleaning, etc.)
  • Accessibility of the site: Assess the accessibility of the site by truck and the associated level of inconvenience to residents in terms of noise pollution and traffic congestion.
  • Dusting: Measures the contribution of on-site ECT operations to the local fine particle concentration.

In Iverny (77), the mayor is enthusiastic about the creation of a new municipal park

3 questions to Olivier Stehlin, Mayor of Iverny

The project led by Iverny town council and ECT offers a new 8700 m² communal space, which is based around a tree-lined promenade with more than 800 trees and a health course with 8 different apparatus. Let’s take a look at this project carried out during the summer of 2021, in a short period of time with regulated and compulsory access to the site to generate the least amount of nuisance in the village.

How did this health pathway come about? 

At the western end of the village, we had an old football pitch. There was talk of refurbishing it. But this did not happen. The land was abandoned and there was a risk of it becoming unsafe.
For a long time, I had in mind to build a health course there. But how to finance it? This is where the meeting with ECT was decisive. ECT’s reuse of excavated soil from nearby construction sites made it possible to create and fully finance the development and equipment of the fitness trail. There was no cost to the municipality.

Was there any reluctance because the reuse of inert soil is often a poorly understood practice?

Indeed, ECT had to be convinced of its ability to characterise the soil and to use only unpolluted, inert soil for development. We were convinced by the reliability of the teams and the conditions of the building site controls. The project was carried out with confidence. The soil inputs took just over two months. Then it was time to install the equipment and in late autumn it was time for planting.

And what do you think about the completion of the health pathway?

The village was missing an open, friendly and sporty space. The overhang of the hillock provides a view of the surrounding countryside. In the end, it turned out to be even better! The inhabitants of Iverny have adopted it and already come to play sports or go for a walk.

The support and attentiveness of the ECT teams in the design and implementation were remarkable. We were able to choose each of the apparatus. The pathways are finally made of stabilised soil. We were also able to select all the trees. The sports course is very successful. It’s great to be able to do something in such a short space of time.

Public Works Forum: “Investing in the ecological transition”

The FNTP is organising the Forum des Travaux Publics on February 24, 2022, at the Grand Palais Éphémère in Paris.

This year’s event is dedicated to the ecological transition. It culminated in a plenary session with the presidential candidates.

The Federation’s members will present around 60 innovations in the exhibition programme. They illustrate the transformation of the worksites, the city and the territories in favour of this great objective.

One example is the “Parc de l’Arboretum” in Moissy-Cramayel. A space for relaxation, biodiversity, sport and leisure, entirely developed by ECT using inert soil.

This day is an opportunity to participate in workshops. These workshops provide a better understanding of the paths and territories of the future. Thus, projecting into the world of tomorrow for public works. Socio-environmental ecological transitions could be accelerated by innovations.

It is also an opportunity to preview the documentary series Wonderworl. Produced by the FNTP to discover French public works engineering on an international scale.

UNEV (National Union of Valorisation Companies) and FNTP (National Federation of Public Works)

On 13 October 2021, UNEV becomes the 17th public works speciality union to join the FNTP. 

UNEV was founded in 1972 and brings together companies involved in recovering and treating waste from the construction sector, particularly inert waste such as concrete and excavated earth.

This recovery is possible thanks to specific infrastructures such as the installation of storage points meeting the best available techniques, regrouping and sorting facilities or landscaping.

UNEV has at the heart of its policy the protection of the environment through virtuous waste management. It is implemented through a voluntary commitment to the circular economy, through the promotion of the stakeholders’ responsibility, but also through fairness for all, which translates into identical regulations for all installations of the same nature.

Springtime on the meadow in front of the Chateau de Vincennes

Two years ago, the City of Paris began planting the Saint-Louis esplanade, opposite the Château de Vincennes. ECT was called in to produce a fertile substrate on-site to support the new cultivation. ECT’s fertile substrate consists of inert soil from construction sites and green waste compost. It combines the recycling of locally sourced data with the refusal to import distant topsoil, in a circular economy approach to construction land.

The green transformation of the former car park now offers a new green space in the city. The former car park has been transformed into a meadow, an environment favourable to biodiversity and a space ready to welcome the public during open-air events

ECT explains regulatory changes in the traceability of excavated soil

ECT puts its expertise to good use for its construction and public work clients


As a major player in the recovery of excavated soil from the construction industry, ECT offers to support its clients, earth workers, transporters and project managers in complying with the new traceability obligations. Particularly in terms of establishing and filling in their digital and chronological registers.

This support takes the form of webinars, methodological brochures and the dematerialisation of exchanges with clients.

Strengthening the traceability of excavated soil

The anti-waste and circular economy law (AGEC) of February 2020 reinforces the traceability of waste and by extension, excavated soil.

Their goal? To improve knowledge of these deposits so that they can be taken into account in the circular economy. Preventing environmental harm also means being accountable for every player involved in this process – including producers, holders, transporters, and disposal sites – which ultimately impacts the whole chain of responsibility.

Practically, what has changed for excavated soil?

  • Modification of the contracts between the producer and the waste manager
  • Modification of pre-acceptance requests (DAP)
  • Obligation for all companies in the sector (transporters included) to maintain a chronological register.
  • Creation of a National Register of excavated soil and sediments. All excavations, recovery or disposal must be tracked and recorded in a digital national register by producers and disposal sites.
  • Facilitation of the removal of waste status (SSD) for all waste. It is important to note that for excavated soil and sediments, monitoring by an accredited third party is required.

Traceability and record keeping 


The data from these registers must be used to populate the “national register of excavated soil and sediments”.

Its implementation will be mandatory from 1 January 2023 with retroactive data from 1 January 2022. 


Effective January 1, 2022, all companies involved must maintain a chronological register.

ECT has had its chronological register for several years. The Extranet customer area provides customers with all time-stamped information regarding the receipt of their excavated soil on our sites: DAP, certificate with unloading dates, detailed report etc.



Reopening of the ECT site in Chevannes (91)

Development of the equestrian sports centre by reusing excavated soil

As of Monday, February 28, the ECT site located in Chevannes (91- Essonne) reopened its doors to the inflow of excavated soil from construction sites. The excavated soil from the sites in the south of Ile-de-France will be used to create the shapes and slopes required for dressage, training and cross-country competition. 

For more information on the conditions of land input and access restrictions

An eco-designed project in line with the circular economy

On this site, the principle of the circular economy of the excavated earth allows conceiving a project that increases the commune’s attractiveness and answers the request of the future operator of the equestrian centre.

To carry out this project, ECT relies on the expertise of several partners:

  • the Essonne Departmental Riding Committee
  • the town of Chevannes (91-Essonne)
  • landscape architect Laurent Latte of CPA Conseils.

Here are 2 videos presenting this exemplary project and interviewing the stakeholders

In Lens (62), children plant the future forest

On Saint Catherine’s Day, it is time to plant”

On the former industrial site, avenue de Van Pelt in Lens (62), the children of Emile Basly school came to plant a hundred trees. These trees are the first to form the future urban forest.  This renaturation and awareness-raising action is part of the French Festival de l’Arbre, (Tree Festival) organised by the Lens town council and the EPF Hauts-de-France. This event is a symbol of the ongoing transformation of this wasteland into an urban forest.

Renaturalizing a wasteland to create the future urban forest

The rehabilitation of the former Van Pelt industrial site managed by the EPF des Hauts-de-France is taking shape. 

The goal is to create an urban forest. More than 8,000 trees will be planted:  oak, beech, alder, maple. Some of the trees will be moved from a neighbouring plot, to ensure local management of the species and better tree recovery.  This diversity will create a wide variety of forest environments. The project will provide the Lens-Liévin conurbation with a new biodiversity area in addition to the “Chaine des Grands Parcs”.

ECT is the intervening operator, to create this “heart of nature” through the contribution of land. The materials used are inert earth from local construction sites. Land traceability is a major issue. The expertise of ECT’s services ensures the analysis, characterisation and traceability of materials from the excavation site to the reception site.

[ECT professions] Employees and partners take to the floor

In partnership with Magazine Mag Journal 77, every month for the past year, ECT employees and partners have been speaking out. A great way to discover the company and its different expertise. Through the testimonies of the men and women who work there. And also by meeting our partners in the field.

Land traceability is a major challenge for ECT and its customers

Our sites are developed using soil from construction sites. The first stage of planning is to characterise and control the land.

  • Alexandre checks beforehand and validates the land’s original site and the earthwork’s mesh. Find out more here.
  • Céline has been a receptionist for over 20 years. She checks the truck’s loads as they arrive on site.  Find out more here.
  • Marc is an environmental technician. He works for ECT on our customers’ sites, where he makes sure that the materials are loaded at the correct receiving sites. Find out more here

Receiving and shaping the land for value 

  • Luc is a machine operator. He shapes the site to receive our clients’ land. He sets up the land for future work. A job with a passion, to discover here.
  • Justine is a surveyor. In the office and the field, she outlines the layout curves to create new landscapes. Find out more here.

Replanting and promoting biodiversity

  • Delmindo works in the green spaces department. Every year, he and his team plant more than 20,000 plants during the winter. A job that reflects his respect for biodiversity, to be discovered here.
  • José is a beekeeper. He has beehives on the edge of the reforested areas of the ECT site in Villeneuve-sous-Dammartin.  A successful experience, to be discovered here.
  • Joaquim leads the Equalis team, an association promoting professional integration, which manages the maintenance and harvesting of the orchard replanted on 4 hectares of renatured mounds on the ECT site in Villeneuve-sous-Dammartin. Find out more here.

Interacting with communities to develop projects

As a developer of undeveloped land, ECT offers communities sustainable developments to boost the attractiveness of the area. The mayor of Iverny contacted ECT to develop a sporty and tree-lined promenade in its municipality, which will open in 2022. His testimony can be found here.

At Epône (78), the MTB-Trial stadium, a partnership, local and sporting success

The inauguration of the stadium in October 2021 features the Julien Absalon stadium in Epône (78) developed on city-owned land. On this occasion, the French Cycling Federation rewarded the sports design work carried out in partnership with the ORC Epône club with the double VTT-Trial label.

Watch a video of the project partners’ testimonies.

Guy Muller, Mayor of Epône and Departmental Councillor of the Yvelines
A symbol of sport in the city and sustainable development

“This development is a symbol of genuine cooperation and consultation. This stadium is part of the city’s sports and attractiveness policy, which meets our sustainable development challenges. We worked with ECT to find a site where inert soil from local construction sites could be used. This is in response to our need to redevelop a former training ground. This teamwork is a success story.

Franck Prestat, President of ORC Epône
New training and competition ground

“Our club is the label of the Ecole de Vélo (Cycling School ) and the Club de Compétition (Competition Club). It now benefits from a rare, complete site for training and competition. The partnership with ECT has been very collaborative since the design of the stadium. The “Julien Absalon” stadium was created by adding soil. This represents a great opportunity to turn a flat area into a very varied area and to fund 5 different apparatus clusters. ”

Éric Jacoté, Vice-President of the French Cycling Federation in charge of mountain biking
The FCF label, the recognition of a success 

“Following the work done by the club, the community and ECT, this project deserves its double-label as the first MTB-Trial stadium. We would be very interested in multiplying this type of project.

ECT and Urbafertil at Paysalia 2021

ECT presents its activity to stakeholders in the landscape sector

ECT is at Paysalia to present its activities as a developer and re-user of excavated soil. And also, to present its new product, Urbafertil, a growing medium and alternative to topsoil.

Several workshops were held on our stand with our partners Les Alchimistes and Astredhor:

  • “The challenges of food waste recovery, synergies and waste recovery” by Camille Lepoutre, Les Alchimistes
  • The “Tree in the City” project by Camille Soulard, Astredhor
  • Feedback on the Urbafertil experiments by Benjamin Tilliet, ECT

The circular economy of excavated soil for ‘greener cities”

The reuse of inert soil is an opportunity for the development of natural, agricultural or recreational areas. In addition, the development of a fertile substrate suitable for planting in an urban environment has been the subject of several years of research and development. ECT has therefore created Urbafertil, its brand of substrate. Its composition is adapted to every project while meeting the NF U44-551 standard (culture media).

The fertile substrate is a solution to reconstitute the soil and its agroecological qualities.

The fertile substrate is produced at its point of use, reducing the carbon footprint of its use. Urbafertil is an eco-responsible product. It is derived from the recycling of green waste and building materials. The creation of this technosol makes it possible to vary the qualities of the soil according to the expected services, vegetation, biodiversity, drainage and bearing capacity. The manufacturing process is adjusted to meet the client’s specifications. Objective: To produce the right growing medium

ECT and Urbafertil at Paysalia

Inauguration of the Cycle Terre factory in Sevran (93)

November 29, 2021 – At the inauguration of the Fabrique Cycle Terre (Earth Cycle Factory) in Sevran, Laurent Mogno, President of ECT, reminded us about the importance of developing all forms of the circular economy for excavated soil in Ile-de-France. For this reason, ECT has invested in the Cycle Terre project and raw earth construction, a vector for a greener and sustainable city.

Constructing with raw earth has significant ecological benefits. Raw earth has a very low carbon footprint, is recyclable, very health-friendly to live in and acts as a natural water regulator.  It can be used as cladding or infill. 

The inauguration took place with all the project partners.

Particularly in the presence of: 

  • Stéphane Blanchet, Mayor of Sevran,
  • Jean-Philippe Dugoin-Clément, Vice-President of the Île-de-France Region,
  • Clémentine Autain, Member of Parliament for Seine-Saint-Denis,
  • Emmanuel Launiau, President of QUARTUS
  • Paul-Emmanuel Loiret, President of Cycle Terre.
  • Laurent Mogno, President of ECT

The splendid building, built by Quartus and designed by the Joly-Loiret architectural firm, allows, in a very urban environment, to produce plaster and raw earth blocks. This production recycles 10,000 tonnes of excavated soil per year.

A look back at the inauguration

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

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