Be it enacted by the Senate and House of Representatives in General Court assembled, and by the authority of the same, as follows:

Notwithstanding any general or special law to the contrary, the town of Palmer may establish a special revenue fund into which shall be deposited any net surplus realized from the operation of the town sewer system. The town treasurer shall keep the funds separate and apart from all other monies of the town. The principal and interest of the fund may be expended, subject to appropriation, for new construction and extraordinary maintenance.