20081555 Ver 2_Mitigation Info_20110404 (14)

Strickland, Bev
From: Steenhuis, Joanne
Sent: Monday, April 04, 20114:04 PM
To: Strickland, Bev
Subject: FW: Croomsbridge Road Mitigation Plan (UNCLASSIFIED)
DWQ Project # 08 1555 same as last e-mail
-----Original Message-----
From: Smith, Ronnie D SAW [mailto:[e-mail]]
Sent: Thursday, March 31, 2011 1:05 PM
To: Dana Lutheran
Cc: Steenhuis, Joanne; Kyle McIntyre; Bill Cameron; Bruce Cameron; smtp-Syster, David
Subject: RE: Croomsbridge Road Mitigation Plan (UNCLASSIFIED)
Classification: UNCLASSIFIED
Caveats: NONE
All,
Thanks for the information. Conditions s, t, and u of the permit have been satisfied. This email serves as an approval of the
changes to the mitigation plan and the permittee can commence work at the mitigation site.
Ronnie Smith
Project Manager
U.S. Army Corps of Engineers
69 Darlington Avenue
Wilmington, North Carolina 28403
Office: 910-251-4829
Fax: [phone]
Website: http://www.saw.usace.anny.mil/WETLANDS
The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we continue to
do so, please complete the Customer Satisfaction Survey located at our website at http://per2.nwp.usace.army.mil/survey.html
-----Original Message-----
From: Dana Lutheran [mailto:[e-mail]]
Sent: Thursday, March 31, 2011 11:13 AM
To: Smith, Ronnie D SAW
Cc: Joanne Steenhuis; Kyle McIntyre; Bill Cameron; Bruce Cameron; smtp-Syster, David
Subject: Fw: Croomsbridge Road Mitigation Plan (UNCLASSIFIED)
Ronnie,
Thank you for your quick review of the Croomsbridge Mitigation Plan. As discussed during our phone conversation this
morning, the elevations depicted on Appendix B are target elevations and will likely change, during the grading process. The
Corps and DWQ will be notified of any changes from the plan.
Should you have further questions or concerns, please feel free to call.
Dana
SEGi
Southern Environmental Group, Inc.
5315 South College Road, Suite E
Wilmington, NC 28412
Phone: [phone]
Fax: [phone]
Mobile: [phone]
----- Forwarded Message ----
From: Dana Lutheran <[e-mail]>
To: "Smith, Ronnie D SAW" <[e-mail]>
Cc: Joanne Steenhuis <[e-mail]>; Bill Cameron <[e-mail]>; Kyle McIntyre
<[e-mail]>; Bruce Cameron <[e-mail]>; David Syster <[e-mail]>
Sent: Wed, March 23, 20115:30:30 PM
Subject: Re: Croomsbridge Road Mitigation Plan (UNCLASSIFIED)
Hello, Ronnie.
Below are your comments followed by SEGi's response or action taken (in blue
font) to address each concern:
--Monitoring of the development of hydric soil is not required. If the hydrology is there, hydric soil will develop. Hydric soils
profiles may not develop during the monitoring period so we do not want that to be included in the success criteria.
Section 5 C has been removed from the Mitigation Plan (see attached).
--Placement of reference monitoring wells in the existing wetlands on the site will be required.
Section 5 B of the Mitigation Plan and the accompanying Appendix C have been revised to denote/depict 13 wells, of which 3
(three) wells are proposed to be located within the existing wetlands (see attached). As discussed, the final number and locations
will be determined upon completion of the grading work and final approval by the USACE.
--Placement of monitoring wells will be required in the enhancement areas.
See the attached, revised Appendix C
--Placement of monitoring wells will be required in the upper ends of the creation areas in the areas that vary in elevation, i.e.
Creation areas C-7 and C-3. (The amount and locations of the monitoring wells can be discussed prior to installation)
See the attached, revised Appendix C
--The target elevation of C-6 is not shown. The elevation of this creation area should not be lower than the normal water level in
the adjacent pit.
Appendix B has been revised to include this information (see attached).
--Concerned about the target elevation in creation area C1. The wetland boundary appears to be around 12' elevation and your
target elevation is 12.5 feet.
Appendix B has been changed to reflect the change in target elevation (see attached).
--Concerned about the target elevation within the lower portion of the western finger of creation area C-3. The wetland
boundary appears to be around 12' and the target elevation is at 13'.
Appendix B has been revised to reflect the change in target elevation (see attached)
--Target ground elevations are not shown in the enhancement areas and the target elevation of the water level control swales are
not shown on grading plan.
Appendix B has been revised to include this information. In addition, the description "water level controlled wetland swales"
has been removed from Section 3 B of the Mitigation Plan (see attached). It was initially thought that this would be the method
by which the water levels in these areas would be controlled. Upon receipt of the grading plans, it was determined that the
elevations of the water surfaces are very close to the adjacent wetlands and that the impoundment of water would not be as big
an issue as once thought.
Thus, we feel the additional controls, outside of simple grading, are not
necessary.
--The berms that will be located between the temporary diversion ditches and the wetland boundaries should be removed upon
completion of the project so that water from the existing wetlands can interact with the mitigation areas.
A note has been added to Sheet 1 of the Grading Plan (Appendix B) to address this concern (see attached).
I realize the Appendix B is difficult to read as a PDF. Therefore, a hard copy of Appendix B will be submitted to your office
tomorrow. In the meantime, if you have any questions please feel free to call.
Dana
p.s. Appendices A and B are attached to this email as one attachment.
-----Original Message-----
From: Dana Lutheran [mailto:[e-mail]]
Sent: Friday, March 18, 2011 1:50 PM
To: Smith, Ronnie D SAW; Joanne Steenhuis
Cc: Kyle McIntyre; [e-mail]; Bill Cameron; smtp-Syster, David; [e-mail]
Subject: Croomsbridge Road Mitigation Plan
Hello, Joanne and Ronnie.
I have attached the plan for your review and comment. Should you have questions or concerns, please feel free to call.
Dana
p.s. Due to the size of the attachment, please respond to this email upon receipt. Also, if you would like a hard copy, let me
know, I will be happy to send it over.
SEGi
Southern Environmental Group, Inc.
5315 South College Road, Suite E
Wilmington, NC 28412
Phone: [phone]
Fax: [phone]
Mobile: [phone]
Classification: UNCLASSIFIED
Caveats: NONE
Classification: UNCLASSIFIED
Caveats: NONE