CREATE TABLE table_77867 ("CERCLIS ID" CLOB, "Name" CLOB, "County" CLOB, "Proposed" CLOB, "Listed" CLOB, "Construction completed" CLOB, "Partially deleted" CLOB, "Deleted" CLOB)

when was the site partially deleted when the cerclis id is az7570028582?
SELECT "Partially deleted" FROM table_77867 WHERE "CERCLIS ID" = 'az7570028582'
SELECT "Partially deleted" FROM "table_77867" WHERE "CERCLIS ID" = 'az7570028582'