The owner or subdivider shall, at the time of his submission of the preliminary plat to the Planning Commission, also include at least four (4) copies of the improvement plans required by these subdivision regulations. Improvement plans shall include, but not be limited to, plans for the following:
A. Street improvements;
B. Sanitary sewer;
C. Water;
D. Drainage; and
E. Erosion and sediment control.
(Code 1991, § 12-438)