For the purpose of carrying out this article, the Director of Finance may authorize the withdrawal from the General Fund of an amount or amounts, not to exceed the amount of the unsold bonds that have been authorized by the committee, to be sold for the purpose of carrying out this article, excluding any refunding bonds authorized pursuant to Section 125291.75, less any amount loaned pursuant to Section 125291.65 and not yet repaid, and any amount withdrawn from the General Fund pursuant to this section and not yet returned to the General Fund. Any amount withdrawn shall be deposited in the fund. Any money made available under this section shall be returned to the General Fund, plus an amount equal to the interest that the money would have earned in the Pooled Money Investment Account, from money received

from the sale of bonds for the purpose of carrying out this article.