Every person will be required to obtain a land disturbance permit from the City of Belle Meade in the following cases: 1. Land disturbing activity disturbs one-quarter (0.25) or more acres of land; 2. Land disturbing activity of less than one (1) acre of land if such activity is part of a larger common plan of development that affects one (1) or more acre of land; 3. Land disturbing activity of less than (1) acre of land, if in the discretion of the City of Belle Meade such activity poses a unique threat to water, or public health or safety; 4. The creation and use of borrow pits.