How available are the various kinds of equipment and technology that might be used in a remedial action?
For example, clamshell dredges are widely used and widely available, but some types of specialty hydraulic dredges are quite rare and may not be accessible without a long wait. Similar problems can arise with the equipment needed for various treatment technologies. • How much money is available? In most situations, this is the biggest question of all. Treating sediments to remove or neutralize contaminants is expensive. And the more material that needs dredging or treatment, the more expensive the operation The rest of this section of the Citizen’s Guide will be devoted to a discussion of the various technologies available to reduce or eliminate the hazards created by contaminated sediments We will describe the situation as of early 1994. But things are changing fast in this area. New technologies are being introduced regularly while other ideas once thought promising are being dropped. However, through all these changes, the broad categories are likely to remain the same. New dredging
