20070173 Ver 5_Modifications_20160912

Kimley>>> Horn
Transmittal
Date: September 12, 2016
Project Name: Bright Sky Project
To: Ms. Jennifer Burdette
NC Division of Water Resources
512 N. Salisbury Street
Raleiah. NC 27604
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the following items:
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Copies Date No. Description
4 8/31/16 - DWR#07-0173v2 Permit Modification Request
1 8/30/16 - NCDWR Application Fee of $240
D E-1
DEQ -WATER RESOURCES
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Signed:

Kimley>»Horn
August 31, 2016
Mr. John Thomas
U.S. Army Corps of Engineers
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
Ms. Jennifer Burdette
NC Division of Water Resources
512 North Salisbury Street
Raleigh, NC 27604
4
V4
RE: SAW -2015-02127 and DWR #07-0173 v2: Individual Section 404/401 Permit
Modification Request
Novo Nordisk Bright Sky Project
Clayton, Johnston County, North Carolina
Dear Mr. Thomas and Ms. Burdette:
On behalf of our client, Novo Nordisk Pharmaceutical Industries, Inc. (Novo Nordisk),
Kimley-Horn is submitting this letter to request a permit modification to the USACE Individual
Permit and NCDWR Certification for the above referenced project. The requested
modification is to account for temporary erosion control and tree protection fencing in
jurisdictional wetland areas since the approval of the above permits.
Based upon final project design, the construction fill slops for several of the interior roads
will need to extend near the edge of the wetland limits requiring the erosion control and tree
protection fencing be placed in the wetlands in three locations (see attached Figure 3 — area
#2A, Figure 4- areas #3A and 4A). In accordance with North Carolina's and Johnston
County's Erosion Control Regulations, a silt fence will be installed to prevent sediment from
migrating into the wetlands. In addition, Novo Nordisk has elected to install a row of Tree
Protection fencing at the Limits of Disturbance (LOD) to prevent work from occurring in the
wetlands, as well as a second row of silt fencing to provide a higher level of protection equal
to a 50' vegetative buffer. The installation of the fencing will require mechanized land
clearing, limited grading, and the placement of mulch between the fencing for additional
sediment protection.
Following the completion of construction, all fencing and associated debris will be removed
from the wetlands, the areas will be restored to natural grade, and as part of the restoration
plan for this project, native wetland vegetation (Acer rubrum, Liriodendron tulipifera, Fraxinus

Kimley»>Horn
Page 2
pennsylvanica, Pinus taeda, Liquidambar styraciflua, Quercus nigra, Nyssa biflora) will be
replanted in the disturbed areas. Based upon discussions with the USACE and the typical
revegetation requirements of 340 trees/acre, for the 0.277 acre of temporary impact,
approximately 85 trees on 6 -foot centers (2-3 year old seedlings) are proposed for the
restoration.
Engineering alternatives were considered to avoid the temporary impacts but were
determined to not be practical due cost. In order to avoid the 0.07 acre temporary impact
#2a shown on Figure 3, a 250 -foot retaining wall approximately six feet in height would be
required. Construction cost for the retaining wall would be approximately $1,200/per foot
totaling approximately $300,000.
In order to avoid the 0.17 acre temporary impact #3A shown on Figure 4, a 600 -foot
retaining wall with a height of approximately six feet would be required. At an approximately
$1,200/per foot construction cost, the retaining wall construction cost would total
approximately $720,000.
Based upon the engineering evaluation discussed above, it was determined that the most
practicable alternative for the proposed temporary impacts, would be to implement the
installation of the erosion control and tree protection fencing as shown on the attached
Figures 3 and 4 and following site construction, restore the disturbed wetland area by
regrading as needed and replanting the area with native wetland vegetation as described
above.
Thank you for your assistance with the permit modification. If you have any questions or
need any additional information, please contact me at [phone] or e-mail at
beth.reed(a_kimley-horn.com
Sincerely,
Kimley-Horn and Associates, Inc.
Beth Reed, PWS
cc: Gary Lohr, Novo Nordisk
Timothy Little, NCDOT

FIGURE 3
REV 2 0 50' 100' 200' 300' 400' 500'
1AUG16
PHASE
is
PHASE RECOVERY RECOVERY
SPINE
REVISED REQUEST
IMPACT AREA #2A
WETLAND CLEARING AND
GRADING = 0.07 AC
VOLUME FILL =
75 CU YD
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Revision date: 7APR76
WATERWAY:
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Drawn : CIT IMPACT 2
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DATE OF PUBLIC NOTICE:
scale: GRAPHIC USACE # SAW -2015-02127
Page no.:
FIGURE 3 of 5

FIGURE 4
REV 3 0 50' 100' 200' 300' 400' 500'
16AUG16
APPROVED' + ,a ' • ,a ' + , = J ' r ' • r " • y ' + , " + , ' • ; ' + ; • a ; ' r r' • r
r r ♦ a
IMPACT AREA#3 •'. "•y •'. r=. '+ •, ''+ ♦•, •
r • y ♦ y • - a' ♦ a r
WETLAND FILL= 1.07 AC ,•=i; •a=+; •."'•, r'= REVISED REQUEST
VOLUME FILL = 18,988 CU YD • a ; ' . ; ' r ; • , ; " J IMPACT AREA #3A
r, a J"• a , • ♦ 'r,r • , WETLAND CLEARING AND
UTILITY+ '+ :..VOLUME
AC r"a♦♦'.; =a
CORRIDOR i + " + VOLUME FILL = 350 CU YD
r
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REVISED REQUEST ♦ ' as ' '
— — — — — — I .y Iry IMPACT AREA #4A
WETLAND CLEARING AND
GRADING = 0.037ACRESVOLUME FILL = 30 CU YDoz
i r r •a
PHASE 1a • _ _ , ' . '
a
ORIGINAL
GRADING PLAN a "
r
REVISED a " + ' ' • a ' ' ; +
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GRADING PLAN r ' ' ' r • ' " ' r = "
+ + Y
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APPROVED
IMPACT AREA #4
WETLAND FILL = 0.12 AC +•' • ' a ' r
10LUME FILL = 823 CU YD
COUNTY: JOHNSTON
WATERWAY:
RIVER BASIN: NEUSE RIVER
DATE OF PUBLIC NOTICE:
0
F-1
APPROVED - IMPACT AREA #5
WETLAND FILL = 0.11 AC
VOLUME FILL = 887 CU YD
ELECTRICAL I GUARD
SUBSTATION HOUSE