Cal. Pub. Res. Code § 7951

When payment has been made in full for any lands which were public lands of the State and a patent has been issued therefor, and the purchaser or his successor in interest has, for a period of five years, been in possession, claiming under such patent the lands intended to be described therein and thereby, but which lands are incorrectly described in the patent, the person so in possession of the lands may have a new and correct survey made of the lands covered by the patent. The plat or map and field-notes constituting the survey shall be made and certified by the county surveyor of the county in which the land is located or by any other surveyor licensed by the State.