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C8 or C-8: PFOA is perfluorooctanoic acid and is sometimes called C8. It is a man-made chemical and does not occur naturally in the environment. The "PFOA" acronym is used to indicate not only perfluorooctanoic acid itself, but also its principal salts.
The PFOA derivative of greatest concern and most wide spread use is the ammonium salt (
Ammonium perfluorooctanoate) commonly known as C8, C-8, or APFO and the chemical of concern in the Class Action suit in Ohio.

Ammonium perfluorooctanoate (APFO or C8)
CAS No. 3825-26-1. Molecular formula:

Perfluorooctanoic acid (PFOA or C8)
CAS No: 335-67-1
. Molecular formula:

The DuPont site where APFO is used as a reaction aid is the Washington Works (Route 892, Washington, West Virginia 26181) located along the Ohio River approximately seven miles southwest of Parkersburg, West Virginia.

The Little Hocking Water Association well field is located in Ohio on the north side of the Ohio River immediately across from the Washington Works facility. Consumers of this drinking water have brought a Class Action suit against the Association and DuPont for the contamination of their drinking water with DuPont's APFO, which residents and media refer to as C8.

PFOA is used as a processing aid in the manufacture of fluoropolymers to produce hundreds of items such as non-stick surfaces on cookware (TEFLON), protective finishes on carpets (SCOTCHGUARD, STAINMASTER), clothing (GORE-TEX), and the weather-resistant barrier sheeting used on homes under the exterior siding (TYVEK).

 

http://www.mariettatimes.com/news/story/0910202004_new03dutpooot.asp

September 10, 2004

The Marietta Times (Ohio)

DuPont OKs C8 suit settlement

By Justin McIntosh, jmcintosh@mariettatimes.com

The settlement of a class-action lawsuit worth nearly $343 million was agreed to Thursday between DuPont and as many as 60,000 area residents who claim a chemical in their drinking water is a risk to their health.

The lawsuit alleged the chemical giant contaminated drinking water supplies in West Virginia and Ohio with the chemical C8, also known as ammonium perfluorooctanoate or PFOA, a key ingredient of its Teflon products. The case was set to go to trial in October.

The settlement must still be approved by a Wood County Circuit Court judge, but if approved it means the company would provide for a cleanup of water systems contaminated with C8 and establish an unbiased scientific panel to look for links between C8 exposure and human disease.

More than 12,000 Washington County residents have some level of C8 in their drinking water.
If a link is found, residents with a disease or health problem related to C8 could seek additional compensation beyond the $343 million settlement.

However, if no link is established, the company would be free from any future lawsuits, said Harry Deitzler, one of the lawyers for the residents.

Paul Bossert, plant manager for the Washington Works facility outside of Parkersburg, said the settlement in no way signifies any guilt on DuPont's behalf.

"We're still very confident in the basis for our beliefs around its safety," Bossert said of C8. "There's really no evidence of any adverse human health effects associated with PFOA."

Some studies have found high levels of C8 to cause cancer in lab animals and at least one study has suggested a link between C8 and ill health in humans. But the chemical is at present unregulated and the federal Environmental Protection Agency is working to establish once and for all what levels of C8, if any, are considered safe.

DuPont has used C8 for more than 50 years in the production of Teflon at the Washington Works plant. The company also operates West Virginia plants in Berkeley and Kanawha counties.

Neighbors of the Washington Works plant allege DuPont polluted their drinking water with unsafe levels of C8. Their lawsuit also says the company has known for decades C8 was harmful to humans but concealed that knowledge from the public. The company was recently fined by the federal EPA for just that reason, although the amount of the fine has not yet been established. DuPont is fighting that finding.

Jane Houlihan, vice president for research at the Environmental Working Group, a non-profit advocacy group, said the settlement is among the highest ever and is an admission of guilt by DuPont.

"I think at this point, DuPont's liabilities are almost limitless," Houlihan said.

Houlihan likened the settlement to the $333 million settlement in Hinkley, Calif., against Pacific Gas & Electric. In 2000 the story behind that lawsuit was made into a movie starring Julia Roberts as legal assistant Erin Brockovich.

If approved by the circuit judge, DuPont would end up paying $343 million. The first payment would fund a $5 million study into whether C8 causes disease in humans.

If a scientific panel finds such a link, DuPont would pay nearly $235 million for medical testing of the 60,000 residents.

Houlihan said that independent study is the most critical part of the settlement because it means citizens will get a fair assessment of C8's health effects.

For years the company has performed its own tests on the chemical and claimed there are no adverse health effects from C8.

After the study, the company would then spend another $10 million to remove as much C8 from the area's water supply as possible.

That chunk of money is what interests Bob Griffin, general manager of Little Hocking Water Association, the most. The $10 million will build state-of-the-art water treatment plants for six public service districts: Lubeck and Mason County in West Virginia and Little Hocking, Belpre, Tuppers Plains and Pomeroy in Ohio.

"Our goal has been all along we felt we should have water that is free of C8," Griffin said. Little Hocking Water serves 12,000 people in Washington County and has one of the highest concentrations of the chemical.

Of the approximate 60,000 people involved in the lawsuit, more than two-thirds are Ohio residents.

Customers of Little Hocking Water had some differing reactions to the news about the settlement.

"It's a bad situation any way you go, whether they settle or not," said Dana Gill, 74, of Little Hocking Route 1. "I think spending the money finding out if there are problems (with C8) is the only thing to do. It's a good idea."

Mark Brown, 45, of Vincent, said he believes the amount of the settlement was not enough.

"The only bad thing about a settlement is that DuPont never really accepts responsibility," Brown said. "If C8 is dangerous, they should have to pay even more to help reverse the damage they've done."

A news release from DuPont said the company would offer "the same technology or its equivalent to residents of those districts whose sole source of drinking water is a private well."

Another $70 million will go into a fund to be overseen by a court-appointed administrator, with at least $20 million of that paying for health and education projects. About $22.6 million of the potential settlement is earmarked for lawyers' fees and expenses.

Deitzler said it would have taken two years to reach this point if the case had been litigated.

"We strongly believe that the proposed settlement is in the best interest of the class," Deitzler said Thursday.

The Ohio EPA has also looked into C8 and DuPont.

Linda Oros, spokeswoman for the Ohio EPA, said it's too early to tell what impact the settlement will have on their actions.

"I don't even know if the settlement would influence what we're doing or not," Oros said.

The Associated Press and reporter Kate York contributed to this report.

C8 case timeline

DuPont began monitoring public water supplies for C8 as far back as 1984, but local water consumers were unaware of its presence until 2001, when it was discovered as a result of testing for a lawsuit brought by neighbors of the Washington, W.Va., plant.

1938 - Teflon discovered by Roy J. Plunkett.

1949 - DuPont introduced Teflon.

1981 - DuPont found C8 in the blood of female plant workers at Washington Works; 50 women reassigned after two of seven children born to female plant workers between 1979 and 1981 had birth defects.

1984 - DuPont found PFOA or C8 in the tap water of the Little Hocking Water Association and other area public water supplies.

1999 - EPA receives new data on PFOS, a related chemical used by 3M Co. in Scotchgard products. The EPA begins an investigation of PFOA and related fluorochemicals.

May 2000 - 3M Co. announces the phaseout of PFOS products.

June 2000 - EPA identifies possible concerns with PFOS and PFOA.

July 2000 - The Telomer Research Group meets with the EPA for the first time to announce a voluntary program to research telomer products.

August 2001 - A class-action suit is filed in Wood County Circuit Court against DuPont on behalf of as many as 60,000 people affected by C8.

January 2002 - A public announcement is made that C8 is discovered in the Little Hocking Water Association system.

April 2003 - EPA releases Preliminary Risk Assessment on PFOA.

May 2003 - Judge George W. Hill orders DuPont to pay for blood testing to monitor exposure in affected people. Hill calls C8 "toxic and hazardous." DuPont appeals the ruling and asks Hill to dismiss himself from the case.

June 2003 - EPA holds first public meeting to engage interested parties in talks to achieve enforceable consent agreements with regard to testing for the toxicity of PFOA.

March 18, 2004 - Wood County Circuit Judge George W. Hill rules three DuPont documents previously sealed should be unsealed in the pending C8 case.

April 29, 2004 - DuPont announces it will undertake an employee health survey to determine if the chemical C8 has an adverse health effect on its workers.

May 7, 2004 - The West Virginia Supreme Court votes to unseal DuPont internal documents that indicate that company employees had concerns for years about health issues surrounding C8.

June 17, 2004 - The U.S. EPA announces it is investigating alleged violations by DuPont for failure to report health related information regarding C8.

July 8, 2004 - The U.S. EPA announces that DuPont will be fined between $1 million and $300 million for failing to report the health information about C8.

Sept. 9, 2004 - DuPont agrees to a proposed settlement totalling $343 million in the class action lawsuit.Source: EPA and staff research