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Wastewater Treatment Facility Odor Control Improvements
Haverhill, Massachusetts
CWSRF # 4156

 The Wastewater treatment facility odor control and HVAC improvement project stems from recommendations made in the comprehensive plant evaluation and odor control mitigation plan.  Beginning in the summer of 2015, the city and its consultant Woodard & Curran began sampling of odor emissions at the treatment plant in order to identify significant areas contributing to odor emissions. The City has completed the first phase of this plan, which included adding covers and ventilation on open influent conveyance channels.  The contract to complete the construction of the Phase II improvements was awarded to Waterline Industries Corporation.  Waterline was issued a notice to proceed on October 24, 2018 with an anticipated completion date of January 17, 2020.

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Local funding authorization totaling $8,340,000 was approved by the Mayor and City Council under a loan order in 2017 (Doc 44-C). This authorized the project to obtain financing and move forward to the construction phase.

The project includes a new biofilter at the WWTF to treat odors from the Screenings Area, Primary Clarifier effluent channel, Gravity Thickeners, Centrifuge area and Sludge Garage. Odorous air will be collected from these areas and discharged through the new biofilter, which will biologically treat the air to reduce odorous compounds. A new activated carbon odor control unit will be installed at South Mill St. main pumping station. This unit will reduce odors to the abutters in the South Kimball Street area. The funding also includes allocation for construction of HVAC upgrades to the administration building at the WWTF. The HVAC for this building has required significant maintenance in recent years and is no longer reliable. The contract to complete the construction of the HVAC system was awarded to Ambient Temperature Corp.

Construction of the odor control/HVAC improvement project at the WWTF is financed by the Clean Water State Revolving Fund (CWSRF).  The CWSRF program is administered by the Commonwealth of Massachusetts Department of Environmental Protection with joint funding from the U.S. Environmental Protection Agency and Commonwealth of Massachusetts.

CWSRF programs operate around the country to provide states and communities the resources necessary to maintain and improve the infrastructure that protects our valuable water resources nationwide.  More information about the DWSRF can be found on the EPA website or the MassDEP website.