Integrated Hydrogeological Modeling of the General Separation Area. Volume 2. Groundwater Flow Model.

Flach, G. P. ; Harris, M. K.

Technical Information Center Oak Ridge Tennessee

关键词: Hydrogeology;    Ground water;    Flow models;    Modifications;    Monitoring;   

RP-ID  :  DE2004833809

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The 15 mi2 General Separations Area (GSA) contains more than 35 RCRA and CERCLA waste units, and is the focus of numerous ongoing and anticipated contaminant migration and remedial alternatives studies. To meet the analysis needs of GSA remediation programs, a groundwater flow model of the area based on the FACT code was developed. The model is consistent with detailed characterization and monitoring data through 1996. Model preprocessing has been automated so that future updates and modifications can be performed quickly and efficiently. Most remedial action scenarios can be explicitly simulated, including vertical recirculation wells, vertical barriers, surface caps, pumping wells at arbitrary locations, specified drawdown within well casings, and wetland impacts of remedial actions. The model has a fine scale vertical mesh and heterogeneous conductivity field, and includes the vadose zone.