Twenty mature pine trees were removed from the backyard.  The basement
now has water seepage.  Please provide an answer detailing how the
removal of the trees may have affected the seepage of water into the
basement. i.e.  flow of surface water and sub-surface water etc.The trees
formed an arc starting at the corner of the
attached garage and went into the side yard.  The trees were not
directly in front of the basement wall but were to the side.The
removed trees were about 75 feet from where the basement is leaking.

Before I got to the comment, that was just my thought, too, that the
trees were holding down the local ground water lever.  Maybe they were
there before you moved in or even before the house was built, so you
never had a chance to know if the basement really was dry or the
seepage was small enough that it evaporated without being noticed.

Strange, why was the inocuous comment that I was agreeing with dileted??