11.05.2008

Monitoring Wells


Now that the reservoir can retain water again, we need to monitor the flow of water through the embankment.


So during this last trip we began the installation of a monitoring well than can be used to measure the depth of water at a particular location. The diagram above is what a monitoring well should look like. Water is supposed to seep into the pipe without the fine soil clogging the perforations in the pipe. Then you can take off the cap and measure the water depth.


So we embarked on another fun Cambodian adventure of improvised technology. This is a photo of wiL cutting the perforation slits into the PVC pipe in front of the Human Translation office.


We used our old hand auger to dig the hole, Jenn picked out this beautiful purple synthetic fabric at the old market that we used for a filter fabric. Then we used sand left over from the concrete construction to pack around the PVC pipe.


Finally, we mixed the concrete on site and poured the pad around the top of the well. Chai helped us install this one monitoring well so he will be able to install the 8 additional wells required in the near future.

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