In this research potential liquation of contaminants from surrounding soil to a reservoir in an island
was studied to investigate the cause and route of contamination of Baengyeong-myeon reservoir.
Soil of Baengyeong-myeon reservoir consists of SiO2 and has a high iron content because of
geological characteristics of its country rock.
From the field investigation and simulation study it was found that highly accumulated
carbon content in the reservoir sediment was incurred from ground water, which provides a
good habitat for microbes.
And the liquation, the cause of organics growth, occurs mainly on the bottom of the reservoir
consisting marine clay layer once used as farmland.
So dredging of the sediment of reservoir and replacing with valley soil is suggested to
prevent continuous contamination of a reservoir in an island due to COD production.