Some of the problems with pollution along Plum Creek, which is in the Chesapeake Bay watershed, are easy to see, like the eroding banks and debris in the water as shown above.  Other areas are not as easy to see, but are there.  A lot of trees along the banks are having their soil along the creek washed out from under them.  In some cases this is leading to situations like shown below.  This tree recently broke and fell from the wind, but the main cause wasn’t the wind.  The tree was hollow at it base and the hollow area was open all the way to the water.  The water in the creek had washed the dirt out from under the tree.  The last two pictures were made looking down through the broken stump clear to the water.