Be it enacted by the Senate and House of Representatives in General Court assembled, and by the authority of the same, as follows:
Chapter 322 of the acts of 1873 is hereby amended by inserting after section 5 the following section:-
Section 5A. The city of Westfield may supply water to cities, towns and districts upon such terms, including terms pertaining to quantity and quality, as may be agreed upon by said city of Westfield and each city, town or district so supplied. Any contract containing the terms agreed to shall conform to the requirements of section 4A of chapter 40 of the General Laws or its successor statute, governing intermunicipal agreements. If such statute no longer exists at the time of contract formation, said city of Westfield may enter into a contract if authorized by the city council and approved by the mayor.