WEST CALDWELL, NEW JERSEY, February 26, 2002 – PCI-WEDECO Environmental Technologies (West Caldwell, New Jersey), has been selected to supply an integrated ozone generation system for the Little Falls Water Treatment Plant in Totowa, NJ, which is owned and operated by the Passaic Valley Water Commission (PVWC).

The advanced treatment technology is part of an upgrade to an existing drinking water treatment plant, which will produce just under 88 MGD of high quality drinking water.

The project will include three state-of-the-art PCI-WEDECO EffizonÒ ozone generators each capable of producing 1,200 pounds per day (22.7 kg/h) of ozone. The entire ozone system will be able to produce up to 3,600 pounds per day (68 kg/h) at high concentrations reaching 12% by weight, using oxygen as the feed gas to maximize plant performance.

Black & Veatch, Kansas City, MO and Killam Associates, Millburn, NJ designed the new ozone system as part of a major plant upgrade . The ozone treatment system is one of many new unit processes being added to the Little Falls WTP.

Ozone is a powerful oxidant, capable of oxidizing naturally occurring constituents that can adversely affect water quality in the form of color, tastes and odor. Ozone is also an extremely efficient disinfectant for controlling harmful bacteria, viruses and protozoa including Cryptosporidium and Giardia. Increasingly, water treatment plants are upgrading to ozone treatment, an environmentally friendly alternative to chlorine. Using ozone significantly reduces the amount of chlorine required minimizing the potential for chlorinated by-product formation, while producing excellent tasting, microbiologically safe drinking water. Ozone is also a cost effective and reliable technology that is playing a greater role in water treatment as municipalities continue to upgrade their systems.

PCI-WEDECO EffizonÒ ozone generators represent the state-of-the-art in terms of reliability and performance. Little Falls Township will continue to benefit long after the plant is commissioned by reducing its cost of ownership, as a result of lower operating and maintenance costs. Adding an ozone based treatment system at the Little Falls Water Treatment Plant will ensure the commission delivers the high quality water to its customers.

Further information about PCI-WEDECO can be obtained by visiting their web site at http://www.pci-wedeco.com or contact:

John Bechtold
Marketing Manager

PCI-WEDECO Environmental Technologies, Inc.