Calgon Carbon Corporation on Tuesday cut the ribbon on a refurbished North Tonawanda facility it leased to recycle granular activated carbon used in the treatment of public drinking water.

Upgrades to the 12,500-square-foot building at 830 River Rd., which was previously used for treating wastewater, began in 2010 to allow it to handle outside material used for potable reactivation. It is the third such Calgon Carbon plant in the United States and will service customers east of the Mississippi River.

“We are proud to work with Calgon Carbon on taking an existing asset and putting it to better use,” North Tonawanda Mayor Robert G. Ortt said in a press release.

The products from the North Tonawanda plant protect public drinking water from disinfection by-products and various organic contaminants that find their way into drinking water supplies.

The new facility, which has been operational since March, joins a 160,000-square-foot warehouse at 437 Bryant St. already in use by Calgon Carbon to store production material.

Calgon Carbon employs 16 people at the plant and warehouse.