ERG designs, builds and operates thermal and heat-based remediation systems for chlorinated solvents, petroleum hydrocarbons, SVOCs and other contaminants that resist conventional treatment. We work from low temperature, heat-enhanced approaches at 35 °C to 400 °C source zone treatment of recalcitrant compounds such as PFAS and creosote waste. With guaranteed remediation contracts and firm fixed price, lump sum pricing, the performance risk sits with us.
At ERG, we start from the cleanup objective, the geology and the contaminant chemistry, then select the temperature, the heating method and the supporting mechanisms that reach that objective efficiently and at the lowest lifecycle cost practicable. When another approach reaches the goal more efficiently, we say so.
Closure criteria, schedule, budget, logistics and site constraints set the design. The heating method follows from them, not the other way around.
Biodegradation, hydrolysis, desorption, volatilization and physical degradation (pyrolysis, mineralization, etc.) each run in their own temperature window. We heat only as far as the endpoint requires.
Most ERG projects are firm fixed price. The team that designs the system builds it, operates it and answers for the result. ERG offers guaranteed remediation contract options on most sites.
Thermal conduction heating powered by multiform energy from combustive and/or electrical sources. Built for high temperature source zones, and for sites where grid power is limited, expensive or not available.
A closed-loop groundwater recirculation and heating platform for low to mid temperature remediation. One skid delivers heat, amendments and hydraulic control, so the treatment mechanism can change as the site changes.
From ambient groundwater to 400 °C, each step up the scale switches on a different set of treatment mechanisms. Our designs target the optimal temperature window for each project, reducing energy consumption and project cost while improving overall efficacy.
Seventy-six electrodes treated 21,900 cubic yards of glacial till and perched groundwater to 52 ft below ground. About 19,000 lbs of contaminants were removed and dissolved TPH-G and BTEX fell 99%.
A phased remedy beneath an operating dry cleaner cut PCE and TCE about 99% in soil, groundwater and vapor. DTSC issued No Further Action for unrestricted land use in August 2026.
Send us the basics: contaminants, depth, geology and the cleanup goal. A principal will review the site and tell you whether heat fits, which approach, and what a full evaluation involves.