Allegheny County Chief Executive Dan Onorato (D) unveiled a plan for the county's nine regional parks which advocates public-private partnerships, creation of a park authority and designation of funding to kick off the program. It's similar to an ordinance approved by Allegheny County Council four years ago which called for creation of a non-profit management team that would seek out private funding to enhance the county park system, says one county council member. Public hearings on the drink tax are set for this week.