Human Resource Office is located at 83 Grayling Ave., Groton, CT 06349. Human Resource Office can be reached by their main phone number at (757) 444-1906. Alternatively, you can reach Human Resource Office by phone at (860) 694-3936. You can also reach Human Resource Office by phone at (860) 694-3936. The listed DSN line is 1-844-762-6572 | National Labor Relations Board. Visit the Human Resource Office website by clicking here.