(a) The authority may acquire or construct, inside or outside the authority, any work, well, plant, transmission line, or other facility necessary or useful to divert, impound, drill for, store, treat, or transport water to the cities for municipal, domestic, agricultural, industrial, or any other useful purposes.
(b) The authority may develop or otherwise acquire underground sources of water.
(c) The authority may acquire land, or an interest in land, inside or outside the authority for any reservoir, work, well, plant, transmission line, or other facility necessary or useful to impound, store, treat, or transport water to the cities and others for municipal, domestic, agricultural, industrial, mining, oil flooding, or any other useful purposes.
(d) The authority may lease, purchase, or otherwise acquire rights in and to storage and storage capacity in any reservoir constructed or to be constructed by any person.