On or before the first day of August the board of directors of the district shall furnish to the board of supervisors and to the auditor, respectively, in writing:
(a)
An estimate of the minimum amount of money required by Section 7243 to be raised by taxation during the fiscal year.
(b)
An estimate of the minimum amount of money required to be raised by taxation to comply with, but subject to the limitations of, any provision inserted pursuant to Section 7243 in any ordinance or resolution providing for the issuance of revenue bonds.
(c)
An estimate of the minimum amount of money required to be raised by taxation during the fiscal year for all other purposes of the district. Taxes levied for purposes of the district other than pursuant to Section 7243 or Section 7260 shall not in the aggregate exceed in any one year seventy-five cents ($0.75) on each one hundred dollars ($100) of assessed valuation.