i bought a new G3 Eagle (aluminum boat) about 3 years ago. It has a Bear trailer under it. Recently, I had to replace the trailer bunks because they were totally rotten and had began to break down and decompose. Upon checking with Bear, I was told that they only used untreated 2x4's because a treated 2x4 would damage the aluminum on the boat. Apparantly the chemical in the wood treatment contains arsenic. I have replaced the bunks with a treated 2x4 covered with marine carpet. Should I be concerned about this treated wood?