California Code, Civil Code - CIV § 880.330

(1) The name and mailing address of the claimant.  If the notice is made by or on behalf of more than one claimant the notice shall contain the name and mailing address of each claimant.

(2) A statement of the character of interest claimed.  The statement shall include a reference by record location to the recorded document that creates or evidences the interest in the claimant.

(3) A legal description of the real property in which the interest is claimed.  The description may be the same as that contained in the recorded document that creates or evidences the interest in the claimant.