SAN FRANCISCO (Standard&Poor's CreditWire) Sept. 24, 1999-Standard&Poor's today assigned its triple-'B'-minus rating to Colorado Educational&Cultural Facilities Authority's $2.6 million charter school revenue bonds series, issued for Jefferson Academy -- a charter school created by Jefferson County School District No. R-1. The bonds are secured by charter school lease payments subject to annual appropriation. The bond are scheduled to sell October 6, 1999. The rating reflects: -- A strong and positive environment for charter schools in Colorado as demonstrated through a supportive legal framework and stable financial arrangements; -- A positive relationship between the schools and its sponsor district, Jefferson County School District No. R-1; -- Successful renewal of the initial charter through 2002; --