No mention about why there is copper showing in your reef? I have copper showing on my results at about double yours. Have you found a source?
Some here may remember that I all but completely crashed my reef due to copper about three years ago. Never found the source but as all of my incoming water tested out fine and I definitely ruled out sabotage, I assumed it was coming from somewhere in the tank itself. So I pretty much emptied it of everything except the fish and a couple pieces of LR and found...nothing. I also completely drained the sump and found nothing. After that, I began running a PolyPad and, sure enough, I'd get some blue though every month less and less. Finally, the blue became barely perceptible and according to ENC labs, copper was hovering around 0.03 mg/L. As this was considered borderline good, I slowly started to rebuild my rockscape and, a few months later, even lay in some corals. Again, this was a couple years ago. Today, the corals are growing, coloring up fairly well, and not once has my copper tested below 0.03 mg/L.
So to answer your question, no I haven't found the source but as long as these levels don't begin to creep upwards again, I'm not going to worry about that either.