Compared to environmental dredging, in situ capping with AquaBlok®, either as a final or an interim measure, can often be a cost effective way to manage contaminated sediments in place - particularly when costs related to sediment disposal (and potential pre-treatment) are considered, as well as significant costs related to natural resource damage claims that could be associated with substantial if not complete ecosystem destruction during implementation of removal-based remedies.

Costs for implementing an AquaBlok®-based capping remedy will vary widely depending on a number of project- and site-related factors that will collectively dictate the most appropriate AquaBlok® formulation, cap design, and method(s) for cap installation.

Other factors, including the relative scale and location of the project, will also dictate whether product is manufactured at or near the site, which will also influence project cost. For example, on- or near-site manufacture (assuming appropriate support facilities and space are available) may not require product packaging and/or significant material transport, but would include costs associated with mobilization of AquaBlok® equipment and personnel to the manufacture location. In contrast, product manufacture away from the site would include costs for product packaging and transport (e.g. over road, by rail, etc.), but would typically not involve any mobilization costs.

Costs associated with: project planning and management; preliminary laboratory and/or field pilot studies (if required); cap design; permitting; construction QC; long-term performance monitoring; and cap maintenance should also be considered.