Section 76D. No permit granted under sections seventy-six A and seventy-six B shall authorize the taking of water from said basin to such an extent as substantially to affect the maintenance of the water level in said basin at the height required by chapter four hundred and sixty-five of the acts of nineteen hundred and three and acts in amendment thereof or in addition thereto, or in quantities, or in a manner, inconsistent with the purposes and provisions of the laws establishing and governing the maintenance of said basin.