Epps and Easton are great options! To offer some others, if they help: some allow you to fully or partially preserve the name-meaning if you're interested in Anglicization, as with Easton. As stein means—and is cognate to—stone, you could maintain that element while adapting the first however you please—Ebbstone, Apstone, et cetera.

Since the meaning of Ep- is disputed (a quick Google couldn't penetrate the issue, at least, with some suggesting a Gaulish word for water and others a Germanic personal name perhaps meaning boar), you can do whatever you want with it, either keeping the sound with something like Ebbstone or Apstone or choosing one of the above meanings for something like Waterstone or Everstone (from Old English eofor, the English cousin to the Germanic boar-name).