The road construction program in every new subdivision shall include such drainage structures and storm sewers as required for the removal of surface water through the subdivision. When open ditches are permitted for surface water drainage, they shall not be more than four feet (4') below the established grade.
When lots are less than forty thousand (40,000) square feet in area, storm sewers shall be required which discharge into natural and adequate drainage channels. (Ord. 0-77-57A, 2-9-1977)