Preliminary unaudited numbers for fiscal 2007 indicate another operating surplus of $450,000, further building reserves.

"They are unaudited numbers," he said.

The audited figures confirm a trend first apparent when unaudited numbers were released in October: Charters now enroll 43 percent of the city's public school students, up from 41 percent in 2011.

"While the DWP's unaudited numbers state that they achieved the goal of 20% renewable energy by 2010, it appears that this was likely due more to luck than to strong planning and policies," Greuel wrote.

But to make that determination, Ms. Kapiloff said that Moody's planned to review the county's unaudited numbers for the fiscal year that ended in December, and that audited figures will not be available until May.

At this time the fiscal 2008 audit is still being finalized, but management's unaudited numbers show the unreserved, undesignated general fund balance at $643,000 (or 2.8% of revenues), which when coupled with the $1.3 million stabilization fund comprise nearly $2 million or still satisfactory 8.6% of annual operating revenues.