The erosion, sediment and pollutant control plan shall be reviewed by the Director.  If the Director finds that the plan complies with this Title, it shall be approved.  Such approval shall be indicated on the plan documents.  The approved plan shall not be changed, modified, or altered without authorization from the Director.  All development regulated by this Title shall be done in accordance with the approved plan.  If the Director approves only a portion of the plan, development may commence on only that portion of the site for which the plan that has been approved.