Washington, D.C. Water Treatment Project Launches

Ground/Water Treatment and Technology LLC (GWTT), based in Wharton, N.J., was contracted in September to provide a 1,500 gpm rental treatment system in support of dewatering operations at one of the largest waterfront development projects in Washington, D.C.

The project kicked off after several years of up front design, tracking and coordination work between the company's owner, general contractor and dewatering contractor. In 2012, the company treated 16.4 billion gallons of water throughout project sites in North America -- an average of 45 mgpd or 31,000 gpm.

In Washington, D.C., GWTT will provide water treatment services for the new $1.5 billion mixed-use waterfront development, which is set to include hotels, condos, restaurants, bars and open space parks, as well as marina and direct boating access. The scope of the project continues to evolve, according to GWTT Vice President Matthew Phillips, because of the complexity of the site and the discharge parameters.

So far, the project's base system consists of influent settling/equalization tanks, sediment filtration via bag filters and six 10,000-lb. carbon adsorption vessels. Sam Colubriale, Mid Atlantic Regional Account Representative, further explained that the dewatering system was also designed to be modular in order to accommodate the possible requirement for the additional treatment of metals via ion exchange resin vessels.

Since the project is located along the Potomac River and the dewatering effort could substantially increase, the system was designed and built with the ability to upgrade in 500 gpm increments.

Source: Ground/Water Treatment and Technology