California Code, Streets and Highways Code - SHC § 18162

(a) Describe, in writing or by reference to the map or plat referred to in Section 18161 with any modifications required by the city council, the boundaries of the district, and of any zone included therein, as they may be finally established, and designate the district and each zone therein by name, number or other distinctive method;

(b) State the period of time for which the proposed improvement shall continue and, in the event the maintenance and servicing is to be furnished by the city, the dates of commencement and ending of such period;

(c) Describe briefly the proposed improvement, stating its estimated cost for the first year, and order the proposed improvement to be made;

(d) Specify what portions of the estimated cost for the first year shall be borne by the city and the district respectively, if less than the entire cost is to be borne by the district, and designate the fund to be charged with such cost;

(e) Specify what proportion of the estimated cost for the first year to be borne by the district shall be borne by each zone therein;

(f) Order that portion of the estimated cost proposed to be borne by the district, and by each zone therein, to be paid by special assessment taxes levied upon all the lands, exclusive of improvements, within the district and any zone therein.