Your Credit Union Has a New Branch Opening In Central New York If you are a member of First Source Federal Credit Union, you will be pleased to know they are offering an additional branch to their members. The banking institution will soon be opening a 6th location in the Hannaford Plaza in Washington Mills. First Source already has 5 locations, two in Utica, one Rome and one in Herkimer. The new stop will be located where the old Key Bank branch was at the right-hand entrance to the plaza that is home to various businesses, including Hannaford Supermarket. For many this may be a more convenient branch than traveling to the Commercial Drive address in New Hartford.