California Code, Harbors and Navigation Code - HNC § 71.9

A city, county, or district may use any excess revenues from rates enacted pursuant to Section 71.4 or from other fees, rates, rents, or charges for services in excess of those revenues required to comply with Section 71.8 and with any agreement entered into pursuant to Section 70, for waterfront improvements, waterfront recreational programs, and purchases of other waterfront property in the waterfront area under its jurisdiction.

This section does not in any way affect the duties and obligations imposed upon a city, county, or district by any statute granting to any city, county, or district any state-owned tide or submerged lands.