Term EE eligibility

What does the Plan say about breaks in service and rehires?

Based the information you've listed, the participation date was 11/1/09 and the participant had a vested balance.  The vested balance means the rule of parity in your document section 3.5(d) does not apply.  Then, 3.5(a) tells you immediate participation on rehire, unless the employee rehired in an excluded category of employees.

Once eligible; always eligible.  If s/he was eligible when s/he left, s/he is eligible at rehire.