Print
Share page with AddThis

Major Projects and Upgrades

Ongoing Projects    (Updated 4/1/2022 - Rene Robillard, Acting Sewer Superintendent)

We have a number of projects that were funded at the May 2007 Town meeting that will be beginning very soon.

1. South Street Pump Station Rehabilitation (Updated 4/1/2002)

This $400,000 project was a complete success and completed on schedule.

This phase of work will include the following much needed improvements:

  • Removal and replacement of existing influent sluice gates.
  • Removal of existing bar screens and replacement with new stainless-steel bar screens.
  • Removal and replacement of existing handrails and ladders in wet well.
  • Removal and replacement of ductwork, motorized damper and electric unit heater in wet well.
  • Installation of stainless-steel safety chains in the wet well.
  • Removal and replacement of electrical conduits, wiring and lighting in wet well area.
  • Removal and replacement of sump pump and controls.
  • Removal and replacement of existing roof and flashing.

(Additional information: South Street Pump Station Rehab – 4/1/22)

The next step in the complete rehab of this main pump station will be the replacement of 2 shaft driven pumps installed circa 1977. The pumps continue to serve the town very well but are in dire need of retirement. The scarcity of parts and lack of energy efficiency make this an issue that will need to be address in the very near future.

2. Arsene Street Facility Condition Report and Improvement Project (Updated 4/1/22)

This $1.5 million-dollar upgrade was also a complete success. While at times we had a few hiccups trying to find compatibility between old equipment and new technology ultimately the project was complete with no process violations.

  • Removal and replacement of existing influent mechanically-cleaned bar screens.
  • Replacement of existing roofs at the Operations, Sludge Handling (Lime Room) and UV Buildings.
  • Structural repairs to the Preliminary Treatment Building floor slab, existing Aeration Tanks walls and walkways, and leaking floor slab in basement of Sludge Handling Building.
  • Removal and replacement of existing deteriorated 35-year-old aluminum slide gates at the Aeration Tanks.
  • Removal and replacement of sludge valves throughout the existing treatment plant.
  • Replacement of existing HVAC air handling equipment and unit heaters throughout the treatment plant.

3. Comprehensive Wastewater Management Plan, still current 2022.

This $600,000 plan will serve as a road map for future wastewater management through 2030, and is required by state and federal agencies. Some of the key items that will be addressed in the CWMP include:

  • Projection of wastewater flows.
  • Update of Town wide Sewer Plan.
  • Wastewater Treatment Alternatives Analyses to address the Town's needs as well as the request from Mattapoisett for more capacity.
  • Wastewater Treatment Facility rehabilitation, expansion and upgrade.
  • Update of Town wide Infiltration/Inflow removal program.
  • Upgrades and expansion of wastewater collection system and pumping stations.
  • Update of the Intermunicipal Agreement with Mattapoisett.

4. Hydraulic Remediation at the Main Treatment Plant on Arsene Street  (Updated 4/1/22)

We are currently still working on this project. Our most recent steps on this include evaluating our 2 biggest gravity force mains from the South and Taber St. pump stations. Along with building in manholes for access and observation purposes. They will be used to camera the lines for any structural deficiencies.:

  • Evaluate alternate repair and/or replacement methods to improve flow through the pipelines and manholes.
  • Evaluate flow patterns through the new ultraviolet disinfection system channels, verify proper operation of flow control gates, and identify improvements that could result in lowering of the hydraulic profile.
  • Prepare design plans and specifications for the recommended improvements.

5. West Island Optimization Study  (Updated 4/1/22)

$50,000 was appropriated to investigate the options available to us to optimize the treatment and disposal of wastewater at the West Island Treatment Plant.

(Additional information: West Island Optimization Study – 4/1/22)

It was determined that 2 new disposal wells needed to be installed. These wells were installed in 2 years ago and are operating within their designed flow.