Nothing herein contained shall be construed to limit or abridge the right of any contracting agency to make use of the intercepting sewer to the full extent of its allotted capacity, and if it shall appear that the actual use of such intercepting sewer by any contracting agency is being or probably will be impaired, lessened or destroyed, then the commissioners shall take action to curtail or bring to an end the use of said intercepting sewer by any lessee whose use of the same is, in actual operation, impairing, lessening or destroying or tending to impair, lessen or destroy the actual use of the intercepting sewer by such contracting agency.
N.J.S. § 58:14-34.6