California Code, Harbors and Navigation Code - HNC § 71.7.5

(a) Sonoma County may maintain an advisory committee for the Spud Point Marina, whose membership is representative of the marina users, and shall give the advisory committee at least 30 days' notice before changing any berthing rates at the Spud Point Marina, and shall consider, but is not obligated to follow, any recommendations of the advisory committee.

(b) Sonoma County may establish different berthing rates and any other charges for commercial, recreational, or other vessels, if the board of supervisors determines that the differing rates or charges are in the public interest, and if any loans from the department are outstanding, are necessary to provide revenue to repay those loans.  However, if any loans are outstanding, berthing rates at the Spud Point Marina for recreational vessels shall not exceed the highest rates charged for berthing within the Spud Point Marina market area for recreational vessels.