A district may construct all works and improvements necessary:
(1) for the prevention of floods;
(2) for the irrigation of land in the district;
(3) for the drainage of land in the district, including drainage ditches or other facilities for drainage;
(4) for the construction of levees to protect the land in the district from overflow;
(5) to alter land elevations where correction is needed; and
(6) to supply water for municipal uses, domestic uses, power and commercial purposes, and all other beneficial uses or controls.