20-Year Capital Improvement Plan
The District prepared a 20-year capital improvement plan (CIP) to improve the wastewater treatment facility to meet more stringent National Pollution Discharge Elimination System (NPDES) permitting requirements and provide a more reliable wastewater treatment facility at its current capacity.
In July 2010, the District was informed of its acceptance on the Massachusetts Department of Environmental Protection (Mass DEP) Bureau of Resource Protection Calendar Year 2010 Intended Use List for State Revolving Funding (SRF). In order to expedite the designs and proceed with the project in a timely manner, the CIP was divided into three phases (A, B and C).
Phase A, which was completed in December 2013, included the replacement of both primary clarifier mechanisms, addition of two screenings washer/compactors in the wet well, primary scum handling improvements, and plant lighting and security improvements. Phase B, the capping of the on-site residuals landfill, was completed in August 2013.
Phase C, which was completed in 2016, focused on improving phosphorus removal, replacing the disinfection system, and extending the life of the facility for an additional 20 years. A District-wide Global Information System was developed as part of this phase to assist with infiltration and inflow reduction requirements.