All real and personal property acquired by the Passaic valley sewerage commissioners, under the authority of chapter 14 of the title Waters and Water Supply (s. 58:14-1 et seq.) for use as part of or in connection with a main intercepting or trunk sewer, its branches or appurtenances, contracted by the Passaic valley sewerage commissioners to be constructed for two or more of the municipalities lying within the Passaic valley sewerage district, shall be exempt from all taxes levied by the municipality or taxing district in which such property is located.
N.J.S. § 54:4-3.4