With the dipole method, we survey on a multitude of different natural materials. Usually, we walk on gravel or sand, but sometimes it’s clay or dirt, and I have even had projects on salt. In all cases, adjustments are necessary depending on...

Our geosynthetics expert Carl Charpentier has been featured in a paper on Geosynthetica. for his 20 years career.

An article highlighting his journey, from his beginnings as an electronic technician to the specialist he has become in the ELL (Electrical Leak Location) field.

Leak location is frequently used on permanent caps to prevent rainwater infiltration, ensuring that confined materials are allowed to dry out, to prevent biogas leaks and to verify the performance of collection systems.

The electrical isolation of a survey site is much easier to achieve when the site is independent of its surroundings. However, site expansions also often require leak location. Carl Charpentier presents the key steps of a successful campaign on expansion cells.

Mechanical anchor points can register as leaks during leak location, as each screw hole allows current to pass into the foundation beneath the geomembrane layer. Carl Charpentier explains how to preform a successful water puddle survey despite the presence of mechanicanl anchors.

In this article, Carl Charpentier considers the various challenges related to low points in confinement systems when applying the water puddle method.

Our geosynthetics expert Carl Charpentier has been featured in a paper on Geosynthetica (a technical magazine dedicated to geosynthetics)

An interesting portrait of workers in the geosynthetics industry, discussing how they spend their free time and presenting a few of their hidden talents, proving that the world of engineering is not all about calculations and data, but it can also coexist with creative personalities.

The article features the lead of Groupe Alphard's Electrical Leak Location team, Carl Charpentier.

In this article, Carl Charpentier shows us a serie of pictures of a rather rare penetration in a polyethylene geomembrane (HDPE).

The method used to locate that hole is called “dipole”...

We are frequently asked about the impact of a GCL (geocomposite clay liner) on leak location. The answer is always the same : if the product is not completely desiccated...