If you've got every DC booster in the game (feats, PL, RXP, augments, Filigrees, ED / Twists) it's possible to hit those numbers, but I'd imagine Pew is probably puffing up his feathers because of how abhorrent some peoples game knowledge is in the thread.
Drop some from having a bard with you and a few more from here and there and he's probably doing about 110 standing with bursts into the 125 range (+5 Verdanite + 3 Reaper boost + 5 from the epic feat + an ED twist or somethin' similar)
He's got about +5 DC from past lives/RXP that I don't have yet as well, but even with all that when I was in Magister with Apothecary I was able to burst way up into the 130's. Alchemist has tight windows of insane power that if you juggle the cycles on you get to do some really awesome stuff.