...Sale Date: Negotiated sale on March 14. Series: $190,000,000 General Obligation Bonds, Series 2017A, and $94,880,000 General Obligation Refunding Bonds, Series 2017B. Purpose: Finance various school facility improvements and refund debt for interest cost savings. Security: Unlimited annual property tax levy and guaranty by Colorado School Credit Enhancement Program (rated `AA' by Fitch). The `AA+' Issuer Default Rating (IDR) and GO ratings reflect Boulder Valley School District No. RE-2's strong revenue and expenditure flexibility, modest long-term liability burden, and healthy financial reserves relative to low expected revenue volatility through economic cycles....