HRS Guidance Manual, Highlight 8-50, page 301
|Level of Contamination||Food Chain Individual Factor Value||Population Factor Value||Minimum Surface Water HWQ Factor ValueA|
|Level I Concentrations||50||10 x Level I Human Food Chain Population Value||100|
|Level II Concentrations||45||1 x Level II Human Food Chain Population Value||100|
|Potential Food Chain Contamination||0 to 20 — depends on dilution weight and whether there is an observed release||0.1 x Potential Human Food Chain Population Value x Dilution Weight||10|
a Only applies if Tier A is not adequately determined.