user: Question: What construction has a CERCLIS ID of ARD092916188?
Columns: ['CERCLIS ID', 'Name', 'County', 'Proposed', 'Listed', 'Construction completed', 'Partially deleted', 'Deleted']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['ARD084930148', 'Arkwood, Inc.', 'Boone', '09/18/1985', '03/31/1989', '06/28/1996', '–', '–']
SQL:

assistant: SELECT "Construction completed" FROM "Table" WHERE "CERCLIS ID" = 'ARD092916188';