The Maples Nursing Home was determined by the Massachusetts Department of Environmental Protection (MADEP) and the local Board of Health to have an existing on-lot wastewater disposal system that was failing and out of compliance with Title 5, thereby requiring a groundwater discharge permit and treatment plant.
BETA provided design, construction management, and startup services for a 22,000 gpd wastewater treatment system to replace the failed on-lot system. Since the site is located in the Town’s groundwater protection district for the public drinking water supply (an approved Zone II), a treatment technology that could comply with MADEP’s most stringent groundwater discharge standards and provided a high degree of reliability was needed.
A membrane bioreactor system with enhanced nitrogen removal capabilities, ultraviolet disinfection, and odor control was selected. The comparatively small footprint of this alternative allowed it to be installed inside a small building designed to blend in with the architecture of nearby buildings.
Special features of this project included a hydrogeological investigation and a groundwater mounding analysis of the effluent discharge.
The project was financed through a loan obtained from the Department of Housing and Urban Development (HUD).