New Technology Saves Dow Plant One Billion Gallons of Water – and $4 Million

Midland, MI and Naperville, IL - January 28, 2010

The Dow Chemical Company (NYSE:DOW) and Nalco Company (NYSE:NLC) announced today their cooperative efforts have resulted in annual water savings of one billion gallons of fresh water at Dow’s largest production site.  That’s enough water to supply nearly 40,000 people in the U.S. for one year.

Dow implemented Nalco’s innovative 3D TRASAR® Technology for Cooling Water to treat the 80 process and comfort cooling tower systems for the 5,000-acre Freeport, Texas site after designating it a Dow MET (Most Effective Technology). A Dow/Nalco team adapted the award-winning 3D TRASAR technology using Six Sigma methodology to classify cooling tower systems based on a variety of control parameters to optimize operations.

"Dow provides some of the basic building blocks for the chemistry the 3D TRASAR system uses to achieve these water savings at Freeport and other Nalco customer locations around the world," said Gary Hockstra, vice president and Site Leader of Dow’s Freeport operations. "The collaborative efforts used at Freeport were built on our longstanding supplier/customer relationship to provide a leading-edge solution that benefits both companies while contributing to our 2015 Sustainability goals."

"Working with our customers is a key part of our product innovation and improvement process," said J. Erik Fyrwald, Nalco Chairman and Chief Executive Officer. "Developing the innovative solutions that help our customers save water and energy and protect the air can’t happen without key customers like Dow allowing us to refine our technologies in real world situations at their sites."

"Responsible operations are a pillar of our commitment to sustainability," said Neil Hawkins, Dow’s vice president of Sustainability and EH&S. "Dow’s commitment to addressing the global water crisis includes game-changing technologies, partnerships in strategic regions, and collaboration with industry leaders like Nalco to reduce our own environmental footprint."

3D TRASAR Cooling Water Technology has been recognized with a United States Presidential Green Chemistry Challenge Award. More than 10,000 3D TRASAR cooling water automation units at sites around the world allowed customers to save more than 75 billion gallons of water in 2009.  3D TRASAR technology automatically maintains optimal chemistry of the water used in cooling systems, greatly reducing the quantity of water needed, maximizing the efficiency of the processes and reducing the energy necessary to run them. At the Dow Freeport facility it all translates to a $4 million per year reduction in maintenance costs, reduced energy cost, reduced water use and reduced greenhouse gas emissions – which makes it good for the environment and good for business.

About Dow
Dow is a diversified chemical company that combines the power of science and technology with the "Human Element" to constantly improve what is essential to human progress. The Company delivers a broad range of products and services to customers in approximately 160 countries, connecting chemistry and innovation with the principles of sustainability to help provide everything from fresh water, food and pharmaceuticals to paints, packaging and personal care products. In 2008, Dow had annual sales of $57.4 billion and employed approximately 46,000 people worldwide. The Company has 150 manufacturing sites in 35 countries and produces approximately 3,300 products. On April 1, 2009, Dow acquired Rohm and Haas Company, a global specialty materials company with sales of $10 billion in 2008, 98 manufacturing sites in 30 countries and approximately 15,000 employees worldwide. References to "Dow" or the "Company" mean The Dow Chemical Company and its consolidated subsidiaries unless otherwise expressly noted.  More information about Dow can be found at

About Nalco
Nalco is the world’s leading water treatment and process improvement company, delivering significant environmental, social and economic performance benefits to our customers. We help our customers reduce energy, water and other natural resource consumption, enhance air quality, minimize environmental releases and improve productivity and end products while boosting the bottom line. Together our comprehensive solutions contribute to the sustainable development of customer operations. Nalco is a member of the Dow Jones Sustainability World Index. More than 11,500 Nalco employees operate in 130 countries supported by a comprehensive network of manufacturing facilities, sales offices and research centers to serve a broad range of end markets. In 2008, Nalco achieved sales of more than $4.2 billion. For more information visit Follow us on Twitter

For Editorial Information:

Mike McCaffrey
The Dow Chemical Company
+1 989 636 0626

Charlie Pajor
Nalco Company
+1 630 305 1556