20000846 Ver 2_More Info Received_20090323

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ECS CAROLINAS, LLP
Geotechnical • Construction Materials • Environmental
- LLF
March 23, 2009
Mr. John Thomas
Raleigh Regulatory Field Office
Wilmington District U.S. Army Corps of Engineers
33 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Reference: As-Built Information for Brush Creek Mitigation Areas I, II and III
Piedmont Triad International Airport
Greensboro, North Carolina
USACE Action ID 200021655, DWQ # 00-0846
ECS Project No. 09-12666C
Dear Mr. Thomas:
In accordance with Special Conditions "v" of the U.S. Army Corps of Engineers (USACE)
permit and "6" of the North Carolina Division of Water Quality (DWQ) permit, the following
as-built information is attached:
1. Plan View Maps;
2. As-Built Survey Maps;
3. Longitudinal Profile;
4. Cross-Section Profiles;
5. Photographs;
6. Pebble Count Graphs; and,
7. Vegetation Information;
The information was obtained following the construction of each mitigation area. Please
note that construction of Brush Creek Mitigation Area II has been completed with the
exception of the erosion control berm that is to be removed once vegetation has become
sufficiently established and at the approval of the North Carolina Department of Environment
and Natural Resources, Division of Land Quality. Supplemental as-built drawings of BC-II
will be submitted pending the removal of the berm. USACE correspondence regarding berm
removal at BC II is attached.
Due to conditions encountered during construction, the size and extent of wetlands were
altered as necessary. The following alterations were made:
• BC I - Based on the design/permit, the restored wetlands in BC I were scheduled to
be 4.66 acres in area. The actual amount of wetlands as surveyed following
construction is 4.54 acres.
• BC II - Based on the permit, the created wetlands in BC II were scheduled to be 5.3
acres in area. After the berm is removed, the actual amount of wetlands is anticipated
4811 Koger Boulevard • Greensboro, NC 27407 • [phone] • Fax [phone]
to be 9.0 acres in area (less 0.6 acres for USACE Action ID # SAW200641354241
and DWQ # 00-1632).
• BC III - Based on the design/permit, the restored wetlands in BC III were scheduled
to be 2.7 acres in area. The actual amount of wetlands as surveyed following
construction is 2.06 acres.
• BC III - Based on the permit, 200 linear feet of stream were to be restored. The
actual amount of stream restored as surveyed following construction is 450 linear
feet.
• Based on the permit, the overall mitigation compliance for BC I, II and III included
the restoration of 7.4 acres of wetland, the creation of 5.3 acres of wetland and the
restoration of 200 linear feet of stream. As determined by the survey following
construction, 6.60 acres of wetland have been restored and 450 linear feet of stream
have been restored. Based on preliminary estimates, 9.0 acres of wetland have been
created.
If there are questions regarding this information, or a need for further as-built information,
please contact us at [phone].
Respectfully submitted,
ECS CAROLINAS, LLP
r,
Denise M. Poulos, LSS
Principal Scientist
U.-& ? Michael T. Brame
Project Scientist
f
David S. Brame
Project Scientist
cc: Ms. Cyndi Karoly, DWQ
Ms. Sue Homewood, DWQ
Mr. Mickie Elmore, PTAA
Mr. Chris Arrington, Baker & Associates
-TA
PIEDMONTTRIAD
AIRPORT AUTHORITY
February 6, 2008
U.S. Army Corps of Engineers, Wilmington District
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
Attention: Mr. John Thomas
Subject: Mitigation Schedule for FedEx Development Program
Piedmont Triad International Airport, Greensboro, North Carolina
USACE Action ID No. 200021655
DWQ Water Quality Certification No. 3428
Dear Mr. Thomas:
On behalf of the Piedmont Triad Airport Authority (PTAA), I am hereby requesting approval of a
minor mitigation schedule item for the Brush Creek mitigation areas. All three of the Brush Creek
wetland restoration/creation mitigation sites (BC-1, BC-2, and BC-3) have been constructed and are
being planted consistent with the subject permits and subsequently approved schedules. However, the
North Carolina Department of Environment and Natural Resources (NCDENR) Land Quality Section
will not allow removal of the temporary erosion control measures until they have field-approved the
vegetation cover. The additional minor earthwork and replanting required to remove the wetland
separation berms, rock weirs, and turbidity screens is anticipated for summer 2008 at the earliest,
pending NCDENR approval. Please contact me or Richard Darling at <rdarling anbakercorp.com>
or 336-931-1500 with any questions or comments.
Sincerely,
PIEDMOTJT TRIAD
JCA/RBD/MLE:rbd
.T AUTHORITY
cc: Cyndi Karoly; DWQ
Sue Homewood; DWQ-WSRO
Richard Darling, Baker & Associates
Alex Rosser; ECS
IIGreensb=lt vol110000MEMS1104066 - GSO FrVvm Managem9rW0 M0W 00022 (404 401)VWi6gationWW Tom F-V Reg fidoc
r
DEPARTMENT OF THE ARMY ]RECCi VE9 MAR 1 72(
WILMINGTON DISTRICT, CORPS OF ENGINEERS
P.O. BOX 1880
WILMINGTON, NORTH CAROUNA 28402-1890
March 13, 2008
N REPLY REFER TO
Regulatory Division
Action ID. 200021655
Mr. Mickie L. Elmore
Piedmont Triad Airport Authority
Post Office Box 35445
Greensboro, North Carolina 27401
Dear Mr. Elmore:
Reference the Department of the Army (DA) permit issued on December 8, 2003,
which authorized the discharge of 1,450,399' cubic yards of clean fill material into 23.93
acres of jurisdictiond waters of the United, States, including wetlands subject to our
regulatory authority pursuant to Section 404 of the Clean Water Act. The project will
impact 12,719 linear feet (1.25 acres) ofBrush Creek and its unnamed tributaries, and
22.68 acres of wetlands adjacent to those streams. This discharge of fill is associated
with plans for the proposed construction of the new runway 5L123 F, a new overnight
express air cargo sorting and distribution facility, and associated development at
Piedmont Triad International Airport (PT)A), located off Bryan Boulevard, in
Greensboro, Guilford County, North Carolina.
Reference is made to site inspections conducted on February 19, 2008, by myself
and Richard Darling (your consultant.for the project) at all three' of the Brush Creek
wetland restoration/creation mitigation sites {BC-1, BC-2; and BC-3). Site inspections
showed all three sites have been constructed and planted in compliance with your DA
permit conditions. Reference is also made to your letter of February 6, 2008,-informing
us of the North Carolina Department of Environment and Natural Resources (NCDENR)
requirement that the temporary erosion control measures remain in place with the Brush
Creek mitigation sites until field-approval of vegetation of the sites. The letter also
requested our review of the NCDENR requirement in regard to compliance with your DA
permit special conditions. We have reviewed' your proposal to comply with the
NCDENR requirements and have determined that the referenced erosion control
measures are temporary and would not result -in permanent impacts to waters of the
United States. ' Tlierefore,Iwe concur with your request with the condition that upon field-
approval of vegetation of the sites by the NCDENR all erosion` control measures are
immediately removed and mitigation properties restored.
Should you have questions, contact I& John Thomas, Raleigh Regulatory Field
Office at telephone [phone], Extension 25.
Sincerely,
5.
hn Thomas
egulatory Project Manager
Raleigh Field Office
Copy furnished:
Mr. Richard Darling
Baker Engineering NY, Inc.
8000 Regency Parkway, Suite 200
Cary, North Carolina 27518
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Size (mm)
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D35 37
D50
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D65 72
D84 130
D95 180
Size Distribution
mean 35.5
dispersion 4.0
skewness 0.16
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sand 0%
gravel 56%
cobble 39%
boulder 1%
Type Yr 1 (11-05) Yr 2 (11-06) Yr 3 (11-07) Yr 4 (11-08)
silt/clay 2% 7% 0% 4%
sand 16% 6% 0% 0%
gravel 76% 83% 88% 56%
cobble 6% 4% 12% 39%
boulder 0% 0% 0% 1%
bedrock 0% 0% 0% 0%
As-Built 2009 Bankfull Channel Pebble Count, BC III Cross Section 2
100%
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D35 1.8
D50
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D84 23
D95 38
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silt/clay 17% 11% 11% 10%
sand 33% 10% 10% 30%
gravel 47% 75% 77% 59%
cobble 3% 3% 2% 1 %
boulder 0% 1 % 0% 0%
bedrock 0% 0% 0% 0%
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co
0
U
0
Y
O
a