K.S.A. 19-2838

Such bonds shall in no event draw in excess of the maximum rate of interest prescribed by K.S.A. 10-1009 and shall mature within fifteen (15) years, but may be made to mature serially of approximate equal amounts each year after date, and the board of county commissioners is authorized to levy a special park improvement tax to retire such bonds and interest as the same mature, and which tax levy may be in addition to all other levies now authorized by law: Provided, That in no case shall the cost of such project to the county exceed the sum of one hundred fifty dollars ($150) per acre area of water surface as is disclosed by such maps, plans and specifications.