Except in connection with normal construction work for which site plan approval has been granted, or for work exempt from site plan approval, where permits have been granted, the removal or filling of soils or changing of grade shall be permitted only under a renewable annual permit issued by the Division of Engineering, provided that the proposed operation and the conditions of the excavated or filled site shall not be detrimental to surrounding land uses or public health. Conditions may be imposed to ensure such operations do not pose any hazards.