ADI's MEDIA G2® has been used worldwide since 1998.

Institutional:
The first installation in the United States occurred in early 1999 with the retrofit of an existing activated carbon filtration plant at Rose Hill Center, a small health care facility in Michigan. The plant consists of six 36" diameter filters; retrofit included replacement of the activated carbon with MEDIA G2® and installation of an automated pH control system to maintain filter inlet pH at 6.5. The plant has been monitored by the USEPA since start-up, and continues to reduce arsenic from 30 ppb to <3 ppb.

Commercial:
Two arsenic removal systems were installed at a bottled water facility in California in 1999. Each system consists of two 8' diameter stainless steel filter vessels operating in parallel, and treats 250 gpm, reducing arsenic from 10 ppb to 2 ppb. Since the filters do not alter the chemistry of the water, except removing arsenic, the water is able to maintain the important natural spring water designation.

Municipal:
The first international use of this technology occurred in March, 1999 with the installation of a 100gpm plant in New Zealand. Arsenic at this location averages 26 ppb. A plant consisting of two 5' diameter vessels was installed outdoors on a concrete slab. It operates unattended, except for backwashing every 2 - 3 months. Outlet arsenic is <5 ppb.

There are now over two dozen plants installed worldwide, all reducing arsenic to less than 5 ppb. A sampling of results: