Abstract: The Town of Spencer, Massachusetts received an Administration Consent Order (ACO) from the Massachusetts Department of Environmental Protection (MassDEP) mandating changes to their water treatment process, and the separation of the Town’s water distribution system into two pressure zones. This paper discusses the completion of this project in three phases. The System Study evaluated the conceptual design criteria needed for the two pressure zones and selection of tank sites. The Design Phase highlights permitting and design challenges encountered, and the Construction Phase discusses the overall final product, construction challenges and project successes.