Chap. 0397 An Act relative to sewer assessments in the town of ayer. Be it enacted, etc., as follows: Section 1. Within six months after the passage of this act, the town of Ayer may by vote determine by which of the methods referred to or authorized by the provisions of section seven of chapter two hundred and fifty-five of the acts of nineteen hundred and forty-one the remaining portion of the cost of the system or sj^stems of main drains and common sewers authorized to be constructed or constructed in accordance with the provisions of said chapter two hundred and fifty-five, as amended by chapter two hundred of the acts of nineteen hundred and forty-five, shall be provided for, and the sewer commissioners of said town may determine the value of the benefit or advantage to every parcel of real estate in the town, beyond the general advantage to all real estate therein, from the construction heretofore of any sewer, drain or system of sewage disposal or extension of any existing sewer or drain or from the doing of any other work authorized by the provisions of said chapter two hundred and fifty-five, or any act in amendment thereof or in addition thereto, shall cause to be recorded in the registry of deeds of the district in which said town is situated a statement of their action with reference to such construction, which shall specify the public ways in which such sewer or drain is located, and may assess on every such parcel a proportionate share of such part, not exceeding three fourths, as said commissioners shall deem just, of the expenses incurred by the town for the improvements aforesaid; provided, that no assessment on any parcel of real estate shall exceed the value of such special benefit to that parcel, and provided further, that if any real estate determined to be specially benefited as aforesaid has been alienated between the date of such construction and the date of passage of this act, said town shall assume the assessments thereon. Every assessment made hereunder upon any such parcel, except one assumed by the town as aforesaid, shall constitute a lien on such parcel from the date of recording of the statement aforesaid. Except as herein otherwise provided, the provisions of general law shall apply to such assessments. Section 2. This act shall take effect upon its passage. Approved May 27, 1948.