Shawn Calendine at a pond survey site
Image from hydroGEOPHYSICS

International geosynthetics manufacturer Solmax is well known for its barrier technologies, such as its innovative conductive lining systems and geomembranes for use in high-temperature liquid applications. The company is also highly supportive of education endeavors in the field. This month, it is hosting the fourth episode in a running series of electrical leak location (ELL) webinars delivered by experts. Shawn Calendine of hydroGEOPHYSICS takes the lead for this round with a presentation on how ELL technologies can identify leaks in deeply filled ponds.

Date: August 17
Time: 11:00 am EDT
Cost: Free



Calendine and fellow ELL practitioner Abigail Gilson (TRI Environmental) are two of the most versed electrical leak location experts in the world. They have delivered all of the webinars in this series to date. Previous installments, all of which are available for viewing through Solmax’s YouTube Channel, have focused on bare geomembrane survey methods, covered survey methods, and soil-covered ELL surveys.

RELATED: Solmax Unveils Leak Location Suite

The deeply filled ponds installment provides another intriguing topic. These are installations in which survey technicians cannot even wade in the ponds to perform their work. So: What options do they have?

Calendine will discuss the advantages and limitations to surveying methods for deeply filled ponds. Attendees will learn about:

  • How these ponds are approached differently from other installations
  • How ASTM D8265 applies to the work
  • Ion conduction in liquids
  • Required site preparation for performing an ELL survey in these applications
  • How to output and interpret the reports generated by a survey
HGI - Indentifying leaks in pond lining systems
Learn a bit about identifying leaks in pond lining systems right now in this post on HGI’s website.


Shawn Calendine is a geoscientist and the Development Manager at hydroGEOPHYSICS Inc. (HGI), a leading geophysical consulting and geosciences company. He has more than 15 years of experience in geophysical and electrical leak location technologies. He has worked on leak location projects in multiple industries across the globe, including the Hanford nuclear site, and in the mining industry. Shawn is an in-demand speaker and presenter on geophysics and leak location technologies, and has published numerous technical papers on these topics.