Cal. Harb. & Nav. Code § 134

Every person who throws, deposits, or permits another in his employ to throw or deposit, any sawdust, slabs, or refuse lumber, in any place where it may be carried or fall into the waters of Humboldt Bay, without first having constructed piers, bulkheads, dams, or other contrivances, approved by the board of supervisors of Humboldt County, to prevent their escape into the channels of the bay, is guilty of a misdemeanor.