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Nalco Statement on EPA Analysis of Sub-surface Dispersant Use

NAPERVILLE, Ill., May 20, 2010 (GlobeNewswire via COMTEX) --Nalco (NYSE:NLC) today issued the following statement:

We are gratified that the EPA has acknowledged that the use of Nalco's dispersants has been effective and has had no undue impact on the marine environment.

As the agency noted on its website today: "Toxicity data does not indicate any significant affects on aquatic life. Moreover, decreased size of the oil droplets is a good indication that, so far, the dispersant is effective."

These results are from an aggressive dispersant monitoring plan in the Gulf that has been implemented by BP and is regularly and rigorously reviewed. We welcome the test of any alternative use technologies to mitigate the environmental impact of the oil spill on the Gulf of Mexico.

As always, our sole responsibility is to help government responders in any way they deem appropriate.

Test results can be found on the EPA Dispersant webpage:

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 150 countries supported by a comprehensive network of manufacturing facilities, sales offices and research centers to serve a broad range of end markets. In 2009, Nalco achieved sales of more than $3.7 billion. For more information visit

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SOURCE: Nalco Company

CONTACT:  Nalco Company
Media Contact:
Charlie Pajor
630 305 1556
Investor Contact:
Mike Bushman
630 305 1025