Taxes for a district which is situated in more than one county as provided in this article shall be levied in accordance with the following procedure:
(a)
The board of directors shall annually, before the time of fixing the general tax levy for county purposes, estimate the amount of money necessary to be raised by taxation to meet the requirements for operation, maintenance, and payment of principal and interest on outstanding bonds which will become payable before the proceeds of another tax levy made at the time of the next general tax levy for county purposes can be made available for payment of such operation, maintenance, principal and interest.
(b)
The total estimate shall be divided by the board of directors in proportion to the value of the real property of the district and any improvement district in each county. The value shall be determined from the equalized values of the last assessment rolls of the counties. When the division of the estimate has been made, the board of directors shall promptly certify to the boards of supervisors of the counties in which the district is situated the respective parts of the estimate apportioned to each county.
(c)
The board of supervisors of each county in which is situated any part of a district shall annually, at the time of levying county taxes, levy a tax upon all the property within the district or any improvement district situated in the county sufficient to raise the amount so certified to the board of supervisors by the board of directors.
(d)
The tax shall be collected by the same officers and in the same manner as other county taxes, and the money so collected shall be deposited in the county treasury of the county in which the original district was created and credited to the account of said district.
(e)
The treasurer of the county in which is situated the annexing territory shall at any time, but not oftener than twice a year, upon order of the board of directors, settle with the board of directors and pay over to the county treasurer, who is the repository of the funds of said district, all money in his possession belonging to said district.