The excavation is located within 50 feet of the boundary of a disapproving abutter or within 10 feet of the boundary of an approving abutter unless approval of a lesser distance is requested by the abutter.
Issuance of the permit would be unduly hazardous or injurious to the public welfare.
Existing visual barriers would be removed, except as necessary to provide access to the excavation.
The excavation would substantially damage a known aquifer, so designated by the United States Geological Survey.
The excavation is within 150 feet of an existing dwelling or a dwelling for which a building permit has been issued at the time the excavation is begun.
The excavation requires land use permits from state or federal agencies; the Planning Board may approve the application when all the necessary permits have been obtained.
The project cannot comply with the reclamation provisions of Sections 6.0 and 8.0.
The excavation is not permitted by zoning or other applicable ordinance.