The 32-year-old ensemble Hudson River Playback Theatre presents three local shows in June and July. All will feature personal stories told by audience members, transformed by the performers into memorable theatre and music on the spot. Funny, poignant, thought-provoking—it all depends on what audience members tell. “STORIES ON THE WATER” will inaugurate Arm of the Sea Theater’s atmospheric new outdoor space on the Rondout, the Tidewater Center.