DEQp00021367

Mr. and Mrs. Roy Patterson
263 Windchime Way
Leland, NC 28451
Wn47gbellsouth.net
January 18, 2007
Environmental Management Commission/ NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
To Whom it May Concern,
We live in Magnolia Greens in northern Brunswick County and are deeply concerned about protecting the water
quality in the Cape Fear River. It has been brought to our attention that the NC DuPont Chemical Works plant
in Fayetteville may compromise that quality.
We are concerned about DuPont Fayetteville Works Wastewater draft permit and feel that -
• Limits should be set for all listed substances.
• All substances with daily limits should be tested daily.
• Any testing that was waived for the previous permit should be reinstated. DuPont should have to prove
compliance with each permit renewal.
• The down stream mixing zone of 4500 feet should be completely removed and all testing should be done
at the point where the discharge enters the Cape Fear River.
• The daily maximum for fluoride is 7,917 pound. This is a concern because fluoride accumulates in
animal bones, in plants and in the soil. If possible fluoride accumulation in river sediment should be
tested and addressed as part of this permit.
• The phrase "sufficiently sensitive" in regards to testing for hexachlorobenzene is ambiguous and should
be concretely defined,
• The permit should include standards and permits on PFOA, C8. The fact sheet that goes along with this
permit states that all the discharge from the PFOA plant is treated off site; this should be made a
requirement of the discharge permit. There is currently nothing that would stop DuPont from treating the
PFOA discharge on site and if this is done there is no requirement for DuPont to test for PFOA in their
discharge water,
• The interim ground water standard of 2.0 parts per billion for PFOA, C8 is too lax. This standard
relieves DuPont of nearly all clean up responsibilities for the discharge that has been reported and is
under investigation. There is no good reason for North Carolina to set an interim standard this high this
interim standard is dangerous. NC health officials have stated that the standard for C8 should be zero
until the health risks are fully understood. States that have experienced C8 ground water contamination
have established far more protective ground water standards of 0.5 parts per billion or less.
We respectfully request a public hearing on this permit, and ask that we be notified about the hearing when it is
scheduled.
Thank you for the opportunity to comment on this permit,
r-
Penny and Roy Patterson

DuPont Vteville Works Wastewater Permit
Subject: DuPont Fayetteville Works Wastewater Permit
From: <[e-mail]>
Date: Thu, 18 Jan 2007 11:53:08 -0500
To: <teresa.rodriguez@ncmail-net>
I'd like to share with you the attached letter I have sent to the Environmental Management Commission/
NPDES Unit re the DuPont Fayetteville Works Wastewatre Permit.
Sincerely,
Penny Patterson
'dupont letter 1-18-07 dor.
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