- 期刊
Relationship between Water Levels and TCE Concentrations during Pump-and-Treat Tests for a TCE-Contaminated Aquifer
並列摘要
Pilot tests of a pump and treat system were performed three times in the wet season and two times in the dry season over 139 days in a trichloroethylene (TCE) contaminated aquifer. Both groundwater levels and TCE concentrations were measured at two pumping and five monitoring wells. The measured data were used to examine the relationships between groundwater levels, TCE concentrations, and pumping rates. In the wet season, the groundwater levels and TCE concentrations showed negative correlations at both pumping wells and some of the monitoring wells due to heavy rainfall by dilution. At the other monitoring wells, they showed positive correlations because of influence of a residual TCE around the wells. In the dry season, they had positive correlations at most wells. TCE concentrations were also influenced by the pumping rates in a zone including residual TCE. However, TCE concentrations did not show any correlation with the pumping rates out of the zone.