(Hillsboro, OR)  -- Hillsboro's assistant city manager is on administrative leave pending an investigation.  The Washington County Sheriff's Office says it's investigating allegations of contact between Steve Greagor and an underage person through a dating website.  The sheriff's office says Greagor's name was found on the website during an unrelated investigation.  Officials say they're taking the allegations seriously, though there's no information to show Greagor believed the person he was contacting was underage.