SAN FRANCISCO (Standard&Poor's CreditWire) Nov. 19, 1999--Standard&Poor's today assigned its `SP-1+' rating to West Contra Costa Unified School District, Calif.'s $20 million 1999-2000 TRANs due Dec. 6, 2000. The notes are scheduled to sell Nov. 23, 1999. The rating reflects: -- The district's pledge of unrestricted taxes, revenues, and other monies attributable to fiscal 2000, -- The district's early set-aside of TRAN repayment amounts, and -- Strong coverage of the TRAN repayment amount by projected available net general fund cash balances at fiscal year-end 2000. The district has pledged to set aside repayment amounts equal to 50% of the principal amount of the notes in January 2000, 50% in May 2000, and an amount equal to