Sorry I'm late to the party after the ICP results came in.
IMO, the only thing that's definitely a concern is the copper level (and maybe aluminum). Your DT water has 31 ppb copper which is roughly 65 times lower than the level of copper used to treat fish diseases (2 ppm) but is also still about 65 times higher than what's found in natural seawater (according to ATI anyway). Is that level enough to harm corals over long periods of time? I don't know, but my guess is that it's not good for them. It's also possible that the level was higher in your water in the early days than when you eventually took your test sample because your copper contamination has been reduced by water changes.
Regarding aluminum, I know a lot of people get up in arms about it, but what I've read (including an old paper by Randy Holmes-Farley
https://reefs.com/magazine/chemistry-and-the-aquarium-aluminum-in-the-reef-aquarium/) suggests that it's not a huge deal until levels get up near 1 ppm. Your level is elevated against baseline, but at 14 ppb you're about 70X below that level. Again, could prolonged exposure at even such a low level harm corals, I don't know---but same thoughts as stated above regarding copper.
None of the other results worry me. I think silicon is nothing to worry about particularly at your level (
https://reefs.com/magazine/silica-in-reef-aquariums/). Same with Manganese (
https://www.faunamarin.de/en/knowledge-base/manganese/). Zinc is a necessary element, but too much (50-100X seawater) can be a bad thing. (
https://reefs.com/2017/03/10/be-careful-with-zinc-levels-in-your-reef/) You're level isn't that much higher than seawater. Regarding Tin, I have to do more research.
OVERALL: I'D SUGGEST YOU DO ANOTHER ICP TEST ON YOUR DT WATER BEFORE YOU MAKE ANY DRASTIC CHANGES. We don't know what ATI's error rates are for the various parameters they test or if there were other variables in play here. If you do another test before changing things and similar results come back, you can have very high confidence in the results. If they come back significantly different, it's a different ballgame. In carpentry, the old saying is "measure twice, cut once". I highly encourage you follow that advice here before you throw away expensive stuff.