A planned special North Central Public Health District board meeting to discuss becoming a department of Wasco County that was scheduled for Thursday has been cancelled.  The district issued notice of the cancellation Wednesday afternoon, but no reason was given, and there was no mention of when it might be rescheduled.  The question of whether the district should become a department of Wasco County has been discussed since Gilliam County withdrew from the district that also includes Sherman County last year.  The topic was the focus of a lengthy district board meeting in August, but there was no clear indication of what the decision might be.