8 REMEDIATION OPTIONS - Castings Technology International

8. Remediation Options
8.4.2 Breaking several pollutant linkages
Where a conceptual model involves several pollutant linkages, then either a remediation technique
that deals with all of the linkages or a combination of techniques may be needed. If the linkages on a
site are spatially separated and involve different sources and pathways, then separate solutions may
be more likely than where the same source or pathway appears in several linkages.
In any event the aim is to be able to carry out remediation that demonstrably breaks all the pollutant
linkages in the site conceptual model.
Finally it should be borne in mind that the selection and design of remediation options is as much an
art as a science and there is no necessarily optimal solution. However, there will be many sub optimal
or inappropriate options. Selection of a solution without adequate evaluation could result in residual
contamination that still poses an unacceptable risk and future liability for problems in the future.
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