Table: superfund_sites_illinois
Columns: cerclis_id
county
listed
construction_completed
partially_deleted
deleted

Question: What was the value for deleted for CERCLIS ID of il0210090049?
SQL: SELECT "deleted" FROM superfund_sites_illinois WHERE "cerclis_id" = 'il0210090049'

Question: What is the date construction is completed in Jo Daviess county?
SQL: SELECT "construction_completed" FROM superfund_sites_illinois WHERE "county" = 'jo daviess'