Exposure domain definition
Exposure domain means the contaminated geographical area or areas of a site that
Exposure domain means the contaminated geographical area or areas of a site that can result in exposure to a particular receptor by a specified exposure pathway: the soil exposure domain for routine surficial contact with site soils is the soil area impacted by site constituents of concern from the ground surface down to a depth of two feet below ground surface; the soil exposure domain for exposure of construction workers or underground utility workers is the impacted area of site soils from the ground surface down to the depth of construction; and the soil exposure domain for protection of groundwater at an established point of exposure is the impacted area of site soils from the ground surface down to the uppermost groundwater zone.