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Four types of targets are evaluated in each pathway:

  • Nearest individual
  • Population
  • Resources
  • Sensitive environments (Except ground water)

Targets may be subject to actual contamination or potential contamination depending the presence of an observed release and their relationship to the release.

Targets subject to actual contamination are evaluated differently depending on the magnitude of the observed release relative to media-specific benchmarks.

Targets subject to potential contamination are usually distance-weighted:   potential targets further from the site are assigned lower values than targets closer to the site.

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