Project teams took a well-deserved break recently to celebrate the midpoint milestone in the construction of the Bellingham Water Treatment Plant Dissolved Air Flotation (DAF) system. Harris & Associates—which provides consultative and construction management services—sponsored a barbecue commemorating progress to date.
The $15-million DAF project began in August 2016 and should finish by February 2018. It will transform the Bellingham facility to aid in organic and suspended solid removal prior to the current anthracite filter bed process. This pre-treatment method is the most sustainable solution for mitigating filter-clogging algae.
“We’ve reached the halfway point with great efficiency,” said Sam Yaghmaie, PE, LEED AP, Project Director for Harris & Associates. “We’re helping the City stay on course with world-class project management software, drone photography and video conferencing at weekly meetings.”
Throughout construction, the plant continues to provide drinking water to more than 80,000 people. Once finished, the new DAF unit—the largest in the state—will pre-test the water from Lake Whatcom before it enters the current filtering process. The plant will produce its own hypochlorite, rendering chlorine gas unnecessary as a disinfectant for drinking water in the preliminary, intermediate and final stages before distribution.
Harris is also managing the construction of a new building on site to house the DAF system and its support equipment, along with large bore site piping to re-route the raw water lines.
“We are proud to be part of a project that will bring a more sustainable water treatment solution to the City of Bellingham,” said Lisa Larrabee, CEO and President of Harris. “This event celebrates the teamwork that makes it possible.”