News & Events

Dracut Water Supply District Breaks Ground on Treatment Plant

The Dracut Water Supply District (DWSD) recently broke ground at the site of their planned water treatment plant (WTP) in Tyngsborough, MA. Tighe & Bond’s President & CEO Bob Belitz and members of the project team, Senior Project Manager Louis Soracco, Project Engineer Mary Danielson, and Senior Consultant John McClellan were present to celebrate the project milestone. The new WTP will include a 2.65 MGD biological pressure filtration treatment system to be used for the removal of iron and manganese from the existing public water supply wells in the Tyngsborough wellfield.

Tighe & Bond has provided permitting, pilot testing, and design services and is currently overseeing the construction administration of the WTP. The design included sizing and layout of a biological filtration process with the ability for future expansion for PFAS treatment, a recycle system to minimize process waste streams, and residual drying beds to manage the materials being removed. Chemical feed systems for potassium hydroxide, calcium hypochlorite, sodium fluoride, and phosphate were also designed. The finished water clearwell was sized and designed to provide 4-log inactivation of viruses.

Tighe & Bond, DWSD, the Town of Tyngsborough, the Town of Dracut, and MassDEP have forged a successful partnership to preserve water quality and supply for the Towns of Tyngsborough and Dracut while also being fully funded through the MassDEP Drinking Water State Revolving Fund. This facility will allow the DWSD to return the wellfield output to its full permitted capacity while meeting effluent water quality standards for manganese.