20110905 Ver 1_WiRO Email_20120904

Strickland, Bev
From:Henderson, Ginny
Sent:Tuesday, September 04, 2012 8:37 AM
To:Ted Sampson, Sr; Steenhuis, Joanne; Willis, Linda
Cc:[e-mail]; 'Office Manager'
Subject:RE: Ft Macon Dredging project DWQ # 11 -0905
Ted,
I think the 4-mil might suffice for the cover plastic, but I would still highly recommend at least 10-mil for the plastic that
the soil will be stockpiled on. The sediment samples had arsenic, chromium and thallium above our unrestricted use
standards, so we wouldn’t want to risk causing any issues at the sand mine. Let me know if you have any questions.

Ginny Henderson, P.G.
Hydrogeologist
North Carolina Dept. of Environment & Natural Resources
Div. of Waste Mgt. - Superfund Section - Inactive Hazardous Sites Branch
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, NC 28405
Ph: [phone] Fax: [phone]
[e-mail]

E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.

From: Ted Sampson, Sr \[mailto:[e-mail]\]
Sent: Friday, August 31, 2012 4:58 PM
To: Steenhuis, Joanne; Henderson, Ginny; Willis, Linda
Cc: [e-mail]; 'Office Manager'
Subject: RE: Ft Macon Dredging project DWQ # 11 -0905

JoAnne, Linda, Ginny,

JoAnne, again thank you so much for your efforts to get this matter addressed prior to the onset of the Labor Day long
weekend. We appreciate being able to move forward with our planning without having to wait until next Tuesday.

For moving forward I want to ensure that I understood correctly what you conveyed to me on the telephone just now. It
was my understanding that you indicated that what was being provided in the attachment to your email were
recommendations, and not requirements, and that the recommendations were to provide some guidance that should be
sufficient to alleviate any concerns that the Mining Commission may have relative to leachate or stormwater runoff.

In the Dredging Plan that we put forward to the Coast Guard, we had already planned to address these issues in the
same manner as the suggestions put forward, and intend to ensure that our operations will not be able to result in the
spoil mixing with onsite soils, or the leachate or stormwater moving through the spoil and into onsite soils, and aquifers.
About the only area in which our plans differed from the recommendations is in the mil of the plastic that we intended
to use. We had proposed to use 4 mil plastic, and believe that this should be adequate in that we do not plan to operate
equipment on top of the spoil, and the lower mil will allow us to more easily handle this material over the extent of the
spoil pile.

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Linda, and/or Ginny, given the above, does the 4 mil plastic sound ok to you?

As for the turbidity boom/turbidity curtain, there already exists a permit requirement for a turbidity barrier to be in
place around the dredging operations, and we intend to fully comply with this requirement.

I noticed in the email attachment that a concern was raised for whether the sand mine was within the counties for
which your Wilmington Regional Office has responsibilities. The sand mine is in Carteret County, which is one of your
counties.

Thank you again, for the assistance that all of you have provided on this matter.

With best regards,
Ted Sampson
Sampson Contracting, Inc.

-----Original Message-----
From: Steenhuis, Joanne \[mailto:[e-mail]\]
Sent: Friday, August 31, 2012 4:05 PM
To: [e-mail]
Cc: Gregson, Jim; Wicker, Christine W SAW
Subject: Ft Macon Dredging project DWQ # 11 -0905

Ted,
I am attaching all the comments I have gotten concerning the dredge sediments and how to handle them during
the drying process as to ensure that they will not cause additional issues with the leachate and potential
stormwater runoff.
The DWQ also would like to request that you keep a boom/turbidity curtain in place to keep down the turbidity
as much as possible as well as the sediment contaminants from migrating elsewhere. Please do not hesitate to
call me, Linda Willis or Ginny if you have any other issues. 910.796.7215 is the general number you can reach
any of us.
Sincerely,
Joanne Steenhuis
Senior Environmental Specialist
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