Your Trusted Partner in
Thermal Remediation

TerraTherm partners with leading engineering firms, government agencies, corporations, and property owners in flexible, cooperative relationships to achieve cleanup goals.

Our experienced project teams and patented technologies are based on over 20 years of successful experience and R&D in the thermal remediation of soil, rock, and groundwater.

Your Trusted Partner in Thermal Remediation

TerraTherm partners with leading engineering firms, government agencies, corporations, and property owners in flexible, cooperative relationships to achieve cleanup goals.

Our experienced project teams and patented technologies are based on over 20 years of successful experience and R&D in the thermal remediation of soil, rock, and groundwater.

TerraTherm treats a wide range of organic chemicals and some metals

Contaminants

Offering dynamic thermal remediation technologies

Providing more technologies than any other thermal remediation company allows us to customize the most advantageous and affordable environmental solutions to fit any site’s soil type, permeability, contaminants, and location.

Recent News from TerraTherm

8 Reasons to Use Thermal Remediation for Redevelopment Projects

09.22.22 |
8 Reasons to Use Thermal Remediation for Redevelopment Projects

Redevelopment projects are typically on tight schedules, and one delay can cost millions of dollars. Learn why thermal remediation should be a top choice for your next brownfield site.

Read More

7 Things You Need to Know About Safety on a Thermal Remediation Project

09.8.22 |
7 Things You Need to Know About Safety on a Thermal Remediation Project

Thermal technology is powerful and rapid. The heat applied to the subsurface has the power to remove many types of contaminants from the subsurface, including VOCs,…

Read More

Can You Combine In Situ Thermal Remediation with other Technologies?

08.25.22 |
Can You Combine In Situ Thermal Remediation with other Technologies?

Addressing Complex Remediation Sites With the onset of improved technology and understanding of remediation processes, sites of increasing complexity and difficulty are now coming into the realm…

Read More

A Global Leader in Thermal Remediation

an overhead view of a thermal project

Thermal Treatment of Deep Bedrock

For the thermal design, every heater boring was equipped with a co-located soil vapor extraction well, allowing for the best pneumatic connection to the bedrock fracture system. The concentration of TCE in these vapor streams from individual wells was used to gauge remedial completeness. Our Tier-One containerized treatment system was utilized to treat the contaminants.

The exact source zone and treatment volume were not fully delineated when the wellfield was installed. TCE was present in fractures deep below the water table. Water was located at 50 ft. bgs. The fracture network was not well understood and as such, a robust vapor recovery system was essential.

After the mass removal had peaked, three successive rounds of sampling of the extracted vapors were completed to document asymptotic TCE concentrations. TCE vapor concentrations at heater locations were decreased 99.98% during operation, while the concentrations at nested soil vapor probes located at the midpoint between heater borings decreased 99.9%.

coal tar remediation

Remediation of Coal Tar in a Manufactured Gas Plant Gasholder

An abandoned gasholder contained approximately 2,200 cy of soil and debris contaminated with coal tar. We utilized our high temperature TCH approach to perform a multi-level in situ heating approach for coal tar remediation.

Prior to the site being heated, coal tar DNAPL had resisted recovery. After dewatering, TCH was applied in a step-wise fashion, without excavation.

To our knowledge, this is the first site where a multi-level in situ heating approach was ever applied. We utilized three levels of heating (Levels 1, 2, and 3) sequentially, achieving low (80°C), moderate (100°C), and higher (325°C) soil temperatures, respectively.

A total of approximately 140,000 lbs of mass was removed from the relatively small gasholder, and as a result of the material removal, the soil in the holder subsided. The subsidence damaged the insulated vapor cover constructed over the treatment zone.

Remediation at the Terminal One Tank Farm in San Francisco Bay

This project was in the beautiful San Francisco Bay adjacent to a marina. The City of Richmond’s 14-acre site, known as the former Terminal One, was operated as a shipping and bulk storage terminal.

A small portion (~1,400 ft2) of the target treatment zone (TTZ) was underneath a 90,000 ft2 warehouse built on concrete pilings. The warehouse was not demolished until after the remediation part was complete, so TerraTherm installed wells inside the warehouse to treat the soil below the building.

  • COCs: PCE, TCE, cis-1,2 DCE, and vinyl chloride
  • Geology: Bay mud and tight clay
  • 138 heater wells were laid out on a 12-feet spacing hexagonal grid. Granular activated carbon and potassium permanganate for off-gas treatment was used to treat the vapor stream.

Thermal Treatment of CVOCs in Overburden Bedrock

Thermal Conduction Heating (TCH) was selected to treat CVOCs from ground surface down into the top of two feet of weathered bedrock. The target treatment zone (TTZ) was located right next to a storm sewer which resulted in a gentle heating strategy around the sewer line.

  • Site specific contaminant of concerns (COCs) were identified as primarily tetrachloroethylene (PCE), trichloroethylene (TCE)
  • The primary objective of in situ thermal remediation (ISTR) was to treat Site COCs in the treatment zone to a concentration equal to or less than 10% of the New Jersey Residential Direct Contact Soil Remediation Standards (RDCSRS).

Webinars & Conferences

TerraTherm provides the expert resources, advice, and designs you need to answer your questions and make the right decisions. We help you to determine which technology options are best for your site, design the optimal project to meet your goals, and find the most cost-effective solution. To sign up for one of our webinars to learn more about us, view our calendar of upcoming webinars and conferences.

Sites cleaned using our thermal technologies
Projects completed utilizing high temperature thermal suitable for PFAS, PCB, Dioxins, and PAHs
Pounds of contaminated mass removed from the environment
OSHA recordables for the past five years
Experience Modification Rate