Section 46797 Of Article 6. Redemption From California Water Code >> Division 14. >> Part 9. >> Chapter 5. >> Article 6.

. An action or proceeding based on the alleged invalidity or irregularity of any agreement of sale, deed, lease, or option executed by a district in connection with land deeded to it by the county treasurer or based on the alleged ineffectiveness of the instrument to convey or affect the title to the land described in it may be commenced only within 180 days after the execution of the instrument by the district.