(a) The district may conduct preliminary surveys and develop and map out a plan for the control and use of the water of Kickapoo Creeks to the end that improvements on any part of the watershed will be mechanically and economically related to the improvements of the entire watershed.
(b) On the completion of the survey, map, or plan and the adoption of the survey, map, or plan by the board, a certified copy of the survey, map, or plan must be filed for informational purposes with the Texas Commission on Environmental Quality.