자원환경지질 (Economic and Environmental Geology)
- 제23권4호
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- Pages.425-452
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- 1990
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- 1225-7281(pISSN)
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- 2288-7962(eISSN)
지하수 오염 가능성 평가 -수리지질 및 부지특성 조사와 경험적 평가 방법을 이용한 지하수 요염 가능성-
An Assessment of Groundwater Pollution Potential of a Proposed Petrochemical Plant Site in Ulsan, South Korea Hydrogeologic and site characterization and groundwater pollution potential by utilizing several empirical assessment methodologies
- Han, Jeong Sang (Technical members of HANS Engineering Co., Ltd.) ;
- Han, Kyu Sang (Technical members of HANS Engineering Co., Ltd.) ;
- Lee, Yong Dong (Technical members of HANS Engineering Co., Ltd.) ;
- Yoo, Dae Ho (Samlim Consultant Co., Ltd.)
- 투고 : 1990.08.20
- 발행 : 1990.08.31
초록
지하수 환경의 오염 가능성에 대한 정량적인 전산분석을 실시하기 이전 단계로 경험적인 평가방법을 이용하여 조사대상 지역 지하수환경의 오염 가능성을 광범위한 수리지질 및 수리분산 실험을 실시하여 평가하였다. 그 결과 최상위 대수층은 포화 비고결 퇴적물과 풍화대 및 수리적으로 연결성이 양호한 상부 파쇄암으로 구성되어 있다. 최상위 대수층의 대표적인 수리전도도는
A tentative hydrogeologic and hydrodispersive study was carried out to evaluate the groundwater pollution potential at a selected site by utilizing empirical assessment methodologies in an advanced stage of quantitative computer aided assessment. The upper most aquifer is defind as saturated overburden and weathered zone including the upper part of highly fractured rock. Representative hydraulic conductivity and storativity of the uppermost aquifer are estimated at 2.88 E-6 m/s and 0.09, respectively. Also calculated Darcian and average linear velocity of groundwater along the major pathway are 0.011 m/d and 0.12 m/d with average hydraulic gradient of 4.6% in the site. The results of empirical assessment methodologies indicate that 1) DRASTIC depicts that the site is situated on non-sensitive and non-vulnerable area. 2) Legrand numerical rating system shows that the probability of contamination and degree of acceptability are classed to "Maybe-Improbable, and Probable Acceptable and Marginally Unacceptable" with situation grade of "B". 3)Waste soil-site interaction matrix assessment categorizes that the study site is located on "Class-8 Site".
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