Wat. Code, § 13601

The state board, in cooperation with the regional boards, shall survey the statewide need for waste collection, treatment and disposal facilities which will be required during the five-year period, January 1, 1968, to December 31, 1972, inclusive, to adequately protect the waters of the state for beneficial use. The state board shall also, biennially, commencing in 1970, survey the need for facilities which will be required by public agencies for the ensuing five-year period. The state board may request a local public agency operating such facilities to transmit to its regional board a report on the following:

(a) A summary of the construction or improvement of its waste collection, treatment and disposal facilities and amounts expended therefor.

(b) An estimate of its needs for the five-year period, January 1, 1968, to December 31, 1972, inclusive, and for any ensuing five-year period.

The state board shall review the information contained in the reports made by the local public agencies. The state board shall submit to the Legislature findings and conclusions as to the anticipated local, state, and federal financing necessary to provide the needed facilities for such periods.