The board of supervisors may appropriate an additional amount, not to exceed the sum which would result from a tax levy upon all of the property in the county subject to taxation of one-half cent ($0.005) per one hundred dollars ($100) of assessed valuation, to reduce or eliminate any deficit in the fund. The board of supervisors shall deposit monthly all contributions received in the county treasury to the credit of the fund.
Ca. Gov. Code § 32330.5