20071177 Ver 1_More Info Received_20070925

WITHERS t~ RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
704o WRIGHTSVILLEAVENUE, SUITE 1oi
WILMINGTON, NORTH CAROLINA, 28403
(9io) 256-9277
FAX (9io) 256-2584
T0: NC Division of Water Quality - 4oz Wetlands Unit
2321 Crabtree Drive
Raleigh, NC 27604
Wilmington, NC 28403
WE ARE SENDING YOU
^ Shop Drawings
^ Copy of Letter
® Attached
^ Prints
^ Change order
~~~~IJ~ OD ~ ~~ ~ ~~uVIJ~~G~1~
DATE /20/O JOB N0. 03060102.01
ATTENTION
Ms. C ndi Karoly
PHONE#
RE: Cobblestone Cove -Revised Site Plan
^ Under separate covervia
^ Plans ^ Samples
^ Diskette ^
the following items:
^ Specifications
COPIES DATE N0. DESCRIPTION
2 0 /20/07 0 060102.01 Revised Site Plan and Letter of Ex lanation

K
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THESE ARE TRANSMITTED as checked below:
^ For approval ^ Approved as submitted
® Foryour use ^ Approved as noted
^ As requested ^ Returned for corrections
^ For review and comment ^
^ FOR BIDS DUE 20 ^ PRINTS RETURNED AFTER LOAN TO US
REMARKS:
Signature
Date
COPY TO: Fle SIGNED: Troy Beasley
If enclosures are not as noted, kindly notify us at once.
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WITHERS RAVENEL
ENGINEERS I PLANNERS I SURVEYDRS
September 20, 2007
US Army Corps of Engineers NC-Division of Water Quality
Regulatory Field Office 401 Wetlands Unit
Attn: Ms. Kim Garvey Attn: Ms. Cyndi Karoly
69 Darlington Avenue 2321 Crabtree Blvd.
Wilmington, NC 28403 Raleigh, North Carolina 27604-2260
Re: Cobblestone Cove
Previous AID# SAW-2006-41094
W&R Project #03060102.01
Dear Ms. Garvey and Ms. Karoly,
On behalf of Southern Villages, LLC, I am providing a revised site plan for the Cobblestone Cove
project. A copy of this letter and revised site plan has also been provided directly to Ms. Joanne
Steenhuis in the Wilmington Field Office.
During the initial environmental fieldwork, surveying and Corps site review, the offsite
connection of the two ditches extending from the northwestern properly boundary had been
severed by the construction of an offsite fill road. It was recently discovered that culverts had
been installed under the road after the initial fieldwork, which has reconnected the ditches and
restored the flow of the runoff onto the proposed project. In order to maintain the existing flow
of offsite runoff, the site plan has been revised to redirect offsite runoff through a pipe along the
rear of lots 24 through 28, and into a pipe running between lots 27 and 28 which will discharge
into the onsite wetlands. This design will maintain existing drainage patterns and prevent runoff
from backing up on adjacent properties.
In order to prevent erosion and downstream sedimentation, rip rap will be placed at the end of
the discharge pipe to dissipate the energy of the outflow. The placement of the rip rap at the end
of the culvert will result in an additiona10.011 acres of impacts to jurisdictional wetlands in
addition to the 0.128 acres of wetland impacts proposed in the original application.
The current request is for 0.139 acres of impacts to jurisdictional wetlands (see the attached
plans for details).
Please feel free to call if you have questions or require additional information.
5..,.nc°er y..~--~----°--
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Troy B asley
Environmental Scient'
Attachments: Revised Site Plan
Cc. Joanne Steenuis - DWQ Wilmington Field Office
704o Wrightsville Avenue, Suite ioi Wilmington, North Carolina 28yo3 tel: 9io-256-9277 fax: 9io-256-2584
www.withersravenel.com