About a dozen staff members are being treated after being exposed to an unknown powdery substance at Perryville Prison in the West Valley. More on the exposure: abc15.com/news/region-west-valley/perryville-prison-staff-members-exposed-to-unknown-substance-taken-to-hospital #breakingnews #arizona #abc15 #goodyear #PerryvillePrison #substance __________________   ABC15 Arizona in Phoenix is your source for local breaking news, in-depth investigations, the latest weather and traffic, and continuous live video.   Subscribe to the ABC15 YouTube channel: bit.ly/3zqfyF0   Watch 24/7 ABC15 live coverage here: abc15.com/live   Download the ABC15 app: abc15.com/apps   Watch more ABC15 on YouTube: Latest ABC15 investigations: bit.ly/3NjEEed Uplifting Arizona-Good news in Arizona: bit.ly/3U8RqhM Your Voice Your Vote-Full Arizona election coverage: bit.ly/3sLsktC