BUENA VISTA — Chaffee County’s three commissioners late Monday handed down strict conditions on the organizer seeking a repeat of the Vertex music festival that drew 8,000 attendees to a ranch outside Buena Vista last August. The conditions — a one-year permit extension, not the requested three, ending the music earlier and limiting noise to 85 decibels — could kill the festival, festival director Michael Sampliner warned the commissioners. Boulder’s Madison House Presents wanted a three-year extension for a festival drawing 12,000 attendees — with a cap of 20,000 tickets. Madison House has potential musicians ready to play the festival, but those musicians need confirmation on Tuesday, Sampliner said. “Beyond this date, we are no longer able to successfully organize this festival,” Sampliner said during a marathon commissioners meeting where dozens of supporters and opponents clashed.