see note 4 to the financial statements for a description of the money pool . entergy gulf states louisiana has a credit facility in the amount of $ 100 million scheduled to expire in august 2012 . no borrowings were outstanding under the credit facility as of december 31 , 2008 . in may 2008 , entergy gulf states louisiana issued $ 375 million of 6.00% ( 6.00 % ) series first mortgage bonds due may 2018 . the proceeds were used to pay at maturity the portion of the $ 325 million of 3.6% ( 3