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

The towns of Westborough and Shrewsbury may amend an agreement entered into by the 2 towns as authorized by chapter 412 of the acts of 1979, entitled "Agreement for the Construction and Operation of the Westborough Treatment Plant," dated September 11, 1979: (i) to include a provision whereby the design flow capacity of the treatment plant shall be allocated between the 2 towns as mutually agreed upon; (ii) to authorize the town of Westborough to adopt sewer regulations or by-laws whereby the design flow capacity allocated to the town of Westborough may be further allocated and reserved for various types of uses and developments within the town, pursuant to the engineering report entitled "Wastewater Allocation Study" completed by Fay, Spofford and Thorndike Engineers, Inc., dated March 2005; and (iii) to provide that, notwithstanding section 3 of chapter 83 of the General Laws or any other general or special law to the contrary, the town's sewer commission shall not be required to connect any home, facility or lot to the town sewer system.