Each and all of the respective areas of land heretofore attempted to be organized into water districts or into local improvement districts or utility local improvement districts under the provisions of Pierce's Perpetual Code 994-1 to -53, chapter 114, Laws of 1929, and amendments thereto (sections 11579 to 11604, Remington's Revised Statutes), are hereby validated and declared to be duly existing water districts, or local improvement districts, or utility local improvement districts, as the case may be, having the respective boundaries set forth in their organization proceedings as shown by the files in the office of the board of county commissioners of the county in question and of such water districts.