MMSD Budget Mysteries #1

This is the first installment of a series on the mysteries of the MMSD Budget.
Mystery #1: The MMSD received $$1,373,333 from a TEACH Grant Fund, and only spent $63,741. The budget document shows no other transfers or expeditures out of the $1,373,333. Where did the balance ($1,309,592) go?
To help solve this mystery, the revenue of $1,373,333 is shown on page 2 of the 2005-2006 Budget Financial Summaries. The expenditure of $63,741 is listed under expenditures for CFO/COO-Summary on page 50 of the same document.
Good sluething, all you Sherlock Holmes wannabe’s.