Winchester - Subject to local approval, expands the board of public utilities' jurisdiction to wastewater treatment systems; requires the mayor to serve as a standing member of the board during the mayor's term; creates four-year terms for members; and makes various other changes. - Amends Chapter 34 of the Private Acts of 2019.

SB 2707 amends Winchester's utility governance by expanding the Board of Public Utilities to include wastewater treatment systems and requiring the mayor to serve as a permanent board member during their term. It establishes four-year terms for the other four board members (with rotating expirations), mandates City Council approval for appointments, and requires the City Council to review and approve utility rates and annual budgets. These changes directly affect Winchester residents through the city's utility services, as the board now oversees water, wastewater, electricity, and other public utilities. The bill also clarifies that utility revenues must cover operational costs, debt, and infrastructure needs, with any surplus deposited into the city's general fund.