[1]
For law of the Commonwealth authorizing the city to sell water to other municipalities, see G. L., C. 40, § 38.
The water department acting by and through the commission of public works, may sell water to the several adjacent towns and its inhabitants for the extinguishment of fires and domestic and other purposes, upon petition of the selectmen of such towns.
Subject to the provisions of General Law, chapter 40, sections 4A and 38 the sale of water under this article shall be upon such written terms and conditions as may be agreed upon by the town and by the mayor all such agreements shall be approved by a majority vote of the city council, prior to execution.
The agreement referred to in the preceding section shall contain among other conditions, the following:
(a) 
The entire cost of constructing and maintaining connections with and alterations of the water supply system of the city within the territory of the town for the purpose of supplying water to the town and its inhabitants shall be borne by the town.
(b) 
The charges for furnishing and selling water to the town and its inhabitants shall be at such rates as established from time to time by the commissioner of public works with the approval of the city council.
(c) 
The city shall have the right, without incurring any liability to the town or its inhabitants by reason thereof, to discontinue supplying water, whenever in the opinion of the commissioner of public works such discontinuance is deemed necessary in order to conserve water for the use of the residents of the city.
(d) 
Such other terms and conditions as the mayor may determine necessary.