A. The Employees' Savings Account shall be credited as follows:
1. Employee contributions.
2. Interest credited to employee contributions prior to July, 1970.
B. The Employees' Savings Account shall be charged as follows:
1. Refunds paid to terminated members.
2. Refunds paid to beneficiary or estate of deceased member where no monthly survivors' benefits are payable.
3. Members' accumulated contributions transferred upon retirement or payment of survivor's benefits.
4. Members' accumulated contributions transferred to another system upon transfer of service.