To improve, repair, operate, maintain, construct and reconstruct the levees, works, structures, or other facilities that provide flood control and flood protection to the area encompassed by the district, including such levees, works, structures, or other facilities of Reclamation Districts Nos. 317, 407, and 2067.
As used herein, "flood control" shall not be deemed to include drainage of lands lying within the levees from storm, irrigation, or other surface or underground waters but shall include the de-watering of any lands which may be inundated as a result of levee failure.