New PFAS filter system to cost Hudson $1.25 million

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By Justin Roshak, Contributing writer

A photo included in TIGG, LLC’s bid packet to the Town of Hudson showed a filtration system the company had already installed in Issaquah, Washington.
A photo included in TIGG, LLC’s bid packet to the Town of Hudson showed a filtration system the company had already installed in Issaquah, Washington.

HUDSON – The Department of Public Works will contract for a new $1.2 million filtration system after the project received unanimous Select Board approval on Aug. 23. 

The system is designed to remove perfluoroalkyls and polyfluoroalkyls (PFAS) chemicals from water supply. These human-made substances are harmful in high concentrations. 

The Department of Public Works received two bids in response to its request for procurement. 

The low bid was from TIGG, LCC of Oakdale, Pennsylvania for $1.50 million. They manufacture their filtration equipment in an Arkansas facility. 

The second highest bid was from Calgon Carbon Corporation, also of Pennsylvania, for $1.49 million.  

The new filtration system will use a technology called granular activated carbon. It will comprise three dual vessel systems, each with a pair of cylindrical eight-foot tanks and interconnecting pipes. At comparable sites, the tanks stand on concrete platforms.

The same technology is in use in Devens, Barnstable, and Mashpee, Massachusetts, according to the bid report. 

“They’re familiar with the Town,” said Select Board member Fred Lucy, who observed that Hudson had more options for filtration service equipment than in past. 

“When we first started this two years ago, it was a small marketplace in terms of supply,” Lucy said. 

TIGG has committed to a delivery date of December 3 at the latest.

UPDATE: This article has been updated to correct a typo. The second highest bid was from Calgon Carbon Corporation, also of Pennsylvania, for $1.49 million. This was not “a second, higher bid” as originally said.