RT @TribLIVE: Natural gas is flowing on Allegheny County Air aspwv1970-01-01T00:00:00-05:00January 1st, 1970|Twitter| RT @TribLIVE: Natural gas is flowing on Allegheny County Airport Authority-owned land https://t.co/zuGtM1iied Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail