CREATE TABLE table_9431 ("CERCLIS ID" CLOB, "Name" CLOB, "County" CLOB, "Proposed" CLOB, "Listed" CLOB, "Construction completed" CLOB, "Partially deleted" CLOB)

What name was proposed on 09/08/1983 in hillsborough county?
SELECT "Name" FROM table_9431 WHERE "County" = 'hillsborough' AND "Proposed" = '09/08/1983'
SELECT "Name" FROM "table_9431" WHERE "County" = 'hillsborough' AND "Proposed" = '09/08/1983'