ALERT ⚠ - DELTA COUNTY FEDERAL CREDIT UNION WILL PERFORM CORE SYSTEM MAINTENANCE ON TUESDAY, 10/08 BETWEEN 4:30PM UNTIL COMPLETED. Please anticipate interruptions to Online Services. The ATM/DEBIT CARDS and ATM MACHINES will process in Stand-in Mode, which Limits the transaction amounts. We apologize for any inconvenience this may cause and Thank you for your patience.