Unfortunately
many recovery wells have been located in similar fashion to that depicted
in this figure. This figure depicts a recovery well located so far upgradient
of the home that it may take years to get clean ground water to flow
 |
beneath your house. The
plume may be split into two portions within a few months. However, the split
(interfluxus) is located so far upgradient of the home that it may take
years for this clean ground water, originating from beyond the sidegradient
extent of the plume, to flow from the area just downgradient of the stagnation
point to your home and then, beneath your home. On an earlier
page (use the back button on your browser to return to this page or
click on Table of Contents to relocate yourself) the stagnation point is
located close to the upgradient side of the home. The stagnation point should
be located sufficiently close, but upgradient of the house so that the clean
ground water from just outside the sidegradient extent of the plume is induced
to flow the shortest distance to the upgradient side of the house through
those soils contaminated by dissolved product. Once the soils on the upgradient
side, and just under the upgradient side, of the house are flushed of their
contaminant load, the clean ground water from just beyond the sidegradient
extent of the plume can now flush the contaminant load in those more distant,
downgradient soils under the basement as depicted on the earlier
page. |
