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Highlight 8-1 of the HRS Guidance Manual

Section 8-1 : Hazardous Substance Migration Path

  • The hazardous substance migration path is comprised of two segments: an overland segment and in-water segment.

  • The overland segment extends from the source to the PPE.

  • The in-water segment extends from the PPE to the TDL.

  • The overland segment determines the distance to surface water; the in-water segment determines the targets that will be evaluated.


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