If a district has no revenue or if the revenues of the district are, or in the judgment of the board of directors are likely to be, inadequate to pay the interest on or principal of any bonded debt as it becomes due, or any other expenses or claims against the district, or if there are delinquent and unpaid charges, as defined in subdivision (e), outstanding, the board of directors shall, annually, on or before August 1st, furnish to the board of supervisors and to the auditor of each county, respectively, in writing:
(a)
An estimate of the minimum amount of money required to be raised by taxes in the county for the payment of its proportion of the amount required to pay the principal of or interest on any bonded debt of the district or of an improvement district therein as it becomes due.
(b)
A description of the improvement district benefited by the purposes of the bonded debt as stated in the resolution declaring the necessity to incur the bonded indebtedness, or, if the whole district was benefited by incurring it, a statement of that fact.
(c)
An estimate of the minimum amount of money required to be raised by taxes in the county for the payment of its proportion of the amount required to meet all the charges, claims, expenditures and expenses, other than a bonded debt, of each improvement district created in the county pursuant to this division, together with a description of each such improvement district as determined by resolution of the board.
(d)
An estimate of the minimum amount of money required to be raised by taxes in the county for the payment of its proportion of the amount required by the district for other expenses and claims against it.
(e)
A statement of those delinquent and unpaid charges for water and other services, or either, requested in writing by the owner of the property that remain delinquent and unpaid for 60 days or more on July 1st determined by the board to be included therein.
(f)
The estimate of the minimum amount of money required to be raised by taxes in the county under subdivisions (c) and (d) shall not exceed the amounts permitted by any maximum property tax rate limitation in the Revenue and Taxation Code, provided however, that if no tax was levied by the district for either the 1971–1972 or the 1972–1973 fiscal year and the district incurred expenses in such years which expenses were paid from revenues other than taxes, then the maximum levy shall not exceed fifty cents ($0.50) per one hundred dollars ($100) of assessed valuation per year.