If the board of directors of any drainage district incorporated under the provisions of chapter 215 of the Session Laws of 1905, and amendments thereto, shall find and determine by resolution that the sanitary sewers of such drainage district are inadequate to meet the standards of the secretary of health and environment and that the alteration, enlargement, extension, improvement, construction, reconstruction, development or redevelopment of such sewers, including sewage treatment and disposal plants, facilities, interceptor and outfall sewers, are necessary and in the interest of public health and welfare, such board shall employ a competent engineer to make a report on the work necessary to be done and an estimate of the cost thereof, which said report and estimate shall be filed in the office of the secretary of such board.
Thereupon the board of directors of said drainage district shall examine and consider such report and estimate, and if said board shall determine that the proposed work should be done, the board shall so find by resolution and shall file with the secretary copies of the resolutions adopted by said district board and a copy of said engineer's report and estimate, and shall request said secretary to approve said report and estimate. Said secretary shall thereupon examine and consider such report and estimate, and if the secretary shall find and determine that the sanitary sewers of such drainage district are inadequate to meet the standards of the secretary of health and environment and that it is necessary and in the interest of public health and welfare that the work described in said engineer's report be done, the secretary shall approve said report and estimate, and thereupon the drainage district shall have power to do such work and to enter into contracts therefor and to pay the cost thereof, except that no sewage treatment or disposal plant shall be constructed inside a city limits or for the treatment of city sewage by a drainage district without the written approval of the governing body of a city. For the purpose of paying such cost such drainage district shall have power to issue the bonds of said district under any statute applicable to such district authorizing the issuance of bonds by such district.
K.S.A. 24-408a