The board shall have power to provide water wells, water lines and other water production and distribution facilities, and to build, construct, reconstruct, purchase and maintain such facilities by districts, or otherwise, as the board may determine. After the district is established in the manner herein provided for and a part but not all of said facilities have been built which will ultimately serve all the land in such district, then the board may, upon petition of the owner of any real estate of such district who desires to have water lines built to serve his land, proceed to design and plan and build such lines and apportion and assess the cost thereof in the manner herein provided for. The board shall have power to employ engineers or other skilled employees for the purpose of assisting in planning and superintending the construction of such system of water production and distribution facilities.