Note..to FULLY catch up on what’s going on with the hydraulic conductivity group, go to http://hydraulicconductivity.blogspot.com/2012_07_01_archive.html
As before we used the falling head test at multiple locations in the creek. This section of the creek turned out to contain sediment that was more rocky in nature than the more sandy conditions at the first location. There was a top layer of sand that was rather shallow with a layer of rocks underneath. There seemed to be this layer of rocks at approximately the same depth across the whole area tested, so we expect differences in the values
calculated for this location compared to the first. We collected sand from the location we had tested to bring back to the lab so we could try to confirm the K values by testing the sand in the lab. We set the column up to be tested tomorrow as the water was very murky and we wanted to allow the sand time to settle.
by David Cooper