本論文採集輕非水相油料(LNAPL)污染場址KO未擾動土壤樣本，以實驗室水沖排方法量測殘留含油飽和度。場址KO土壤樣本95.9 %以上重量百分率粒徑分佈皆在在0.425 mm至0.05 mm之間。場址KO土壤介於細砂及中砂。孔隙率介於0.366至0.435之間；飽和滲透率介於1.75*10-5公分/秒至6.08*10-3公分/秒之間；原生含水飽和度介於0.151至0.353之間。實驗結果顯示水沖排殘留含油飽和度介於0.056至0.129之間。

The objective of the present study was to apply a laboratory waterflood method using undisturbed soil samples from the KO site contaminated by light-non-aqueous-phase liquids (LNAPL) to determine the residual oil saturation. The lithology of the shallow aquifer at the KO site is mainly fine to medium sand consisting of 0.959 weight fractions with particle size ranging from 0.42 to 0.05 mm. The porosity, permeability and initial irreducible water saturation were estimated to be in the range of 0.366 – 0.435, 1.75*10-5 – 6.08*10-3 cm/sec and 0.151 – 0.353, respectively. The residual oil saturation determined for the KO site was in the range of 0.056 – 0.129.

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