FREQUENTLY ASKED QUESTIONS

Treatment Costs

What type of a model would you use for determining full-scale costs?

ISOTEC estimates project costs based on numerous site factors. A specific stoichiometry is first determined through a bench-scale lab study, with preliminary treatment quantities calculated. Application is typically tested in the field during a pilot program to determine the efficiency and radial extent of treatment, which varies depending on the site's subsurface characteristics. Based upon a successful lab study and pilot program, design and implementation of full-scale remediation is proposed (if required). The following factors are considered in estimating the full-scale treatment costs: number of injection points required, amount and extent of delineated groundwater contaminant plume/ soil contamination, oxidant to be utilized, subsurface geology, and estimated volume of reagents required.

How do your cost estimates for full-scale treatment address remedial action objectives?

The ISOTEC process is typically a three-step process from laboratory-scale to pilot-scale to full-scale. Each step requires input from the previous. Full-scale treatment typically requires several applications, with each subsequent application treating a smaller area within the former plume. Each treatment application is followed by specific site monitoring to obtain information related to the treatment process, subsurface characteristics and remedial goals.

Initial estimates will reflect the cost of applying the ISOTEC process throughout the entire area of concern. ISOTEC typically performs a pilot study prior to site wide remediation to determine actual radial effects of treatment. The radial treatment estimates contained within any proposal are based upon ISOTEC fieldwork conducted in the past at facilities with similar geology. Actual radial treatment effects are site specific and can only be determined during actual remedial activities. Actual injection point locations will be determined upon a review of subsurface utility maps.

Back to main Frequently Asked Questions Page