As you all know, I asked my water company to test my water for mac back in Jan. They called me today with the results. None found in my showerhead, none found in the pipes coming into the house, and none found at the plant itself. If you all will remember our past posts talking about the presence of 'pink slime' negating the presence of mac in your plumbing (per Dr Joseph Falkinham at Va Tech). I do have the pink bacteria present, and sure enough, no detectable mac! The rep from the water company said they have now included a section on their website about mac. She said it was in thanks to me bringing it to their attention. I will look it up tomorrow and see what it says. I was happy that they took this seriously, but even happier it is not in my plumbing!