20171464 Ver 1 _Express Application _20171114

Strickland, Bev
From: Roth, Kelly <[e-mail]>
Sent: Monday, November 06, 2017 3:32 PM
To: Pullinger, Robert C; Hardison, Lyn
Cc: Yates, Kevin
Subject: RE: [External] RE: Neuse buffer authorization - express review for Durham project
Attachments: Neuse Buffer Authorization Request - Duke Health-Arringdon 11-06-2017.pdf
CAUTION: External email. Do not click links or open attachments unless verified. Send all suspicious email as an attachment to
[e-mail].
Lyn and Chris -
Please see the attached PDF of our submittal package for a Neuse buffer authorization express review for the Duke
Health-Arringdon project. Please feel free to call or email me if there is any additional information you need.
Thank you!
-Kelly
From: Pullinger, Robert C [mailto:[e-mail]]
Sent: Tuesday, October 31, 2017 2:04 PM
To: Roth, Kelly <[e-mail]>; Hardison, Lyn <[e-mail]>
Subject: RE: [External] RE: Neuse buffer authorization - express review for Durham project
Kelly,
Just guessing, but I wouldn't think my initial review of any electronic submittal would take longer than a day, 2 at max if I
happened to be out on the field on the day you sent it.
Chris Pullinger
Environmental Senior Specialist
Division of Water Resources — Water Quality Regional Operations
Department of Environmental Quality
252 948 3922 office
�Ihiris.:..pulliu� eir u�cdeu�ir.gov
943 Washington Square Mall
Washington, NC 27889
From: Roth, Kelly [rnailtcr:rcrth(c�rncadarnsecr �carn]
Sent: Tuesday, October 31, 2017 11:05 AM
To: Hardison, Lyn <1yn._hardscrn_(ndenr.gcrv>
Cc: Pullinger, Robert C <chris.p.g.I_I.inge_r(c nedenr.gcav>
Subject: [External] RE: Neuse buffer authorization - express review for Durham project
CAUTION: External email. Do not click links or open attachments unless verified. Send all suspicious email as an attachment to
[e-mail].

Lyn/Chris-
Quick question ... do you have an idea of how long your initial review of the electronic submittal might take once I get it
to you? The project manager for the project is asking so he can give the client a general timeline.
Thank you again for your willingness to take on this project for express review. It's a huge help and greatly appreciated!
-Kelly
From: Roth, Kelly
Sent: Monday, October 30, 2017 12:03 PM
To:'[e-mail]' <1yn._hardison_Cj2!n d_en_r. cav>
Subject: Neuse buffer authorization - express review for Durham project
Hello Lyn -
As we discussed over the phone, McAdams has a project in Durham in the Neuse that will require a buffer authorization,
and we would like to get an express review, if possible, due to an expedited construction timeline. The site, called Duke
Health—Arringdon, is on the southwest corner of Page Road and Arringdon Park Drive in Durham, NC. The proposed
project consists of an office building, parking deck, and a stormwater management facility. The only proposed impacts
are Neuse buffer impacts related to one riprap outfall from the stormwater facility, shown on the attached plan sheet
and in the snipit below. There are no stream or wetland impacts associated with this project. We are seeking an express
review for the buffer authorization because the construction of the project is on a very tight timeline. The client already
has grading permits in hand and is on pace to begin site work in 2-3 weeks, with the stormwater outfall installation
scheduled to occur in 4-6 weeks. We would be grateful if your office were able to handle an express review for this
project in order to keep the construction on schedule. Thank you for your consideration of this project. Please let me
know if there is any other information you need.
Kelly Roth I Environmental Consultant, Water Resources + Infrastructure
McAdams
2905 Meridian Parkway, Durham, NC 27713
office 919. 361. 5000 x210 I direct 919. 287. 0716 I [e-mail]
www.mcadamsco.com I linkedin I twitter I instagram I join our team

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'J McADAMS
November 6, 2017
Ms. Lyn Hardison
NC Division of Water Resources
Washington Regional Office
943 Washington Square Mall
Washington, NC 27889
Re: Neuse Buffer Authorization — Express Review
Duke Health - Arringdon
Durham, North Carolina
DKH-17010
Dear Ms. Hardison:
On behalf of Duke University Health Systems, Inc., we are applying for a
Neuse River Riparian Buffer Authorization for permanent impacts to Zone 1
and Zone 2 of the Neuse Buffer associated with installation of a stormwater
outfall for the Duke Health-Arringdon project. The subject property is located
off Page Road just east of its intersection with Arringdon Park Drive in
Durham, North Carolina. The approximately 10.30 -acre site is owned by
Duke University Health Systems, Inc. and will be developed by JDavis. The
subject property contains a tributary to Brier Creek within the Neuse River
basin. The following items are included in this Neuse Buffer Authorization
application package:
• Signed Agent Authorization
• Fig. 1 - USGS Quad — SE Durham
• Fig. 2 - Durham County Soil Survey (Sheets 36 & 40)
• Fig. 3 - Existing Conditions Map
The John R. McAdams
• Fig. 4 - Overall Impact Map
Company, Inc.
• Riparian Buffer Authorization Form
• Previously authorized DWR buffer permit (DWR Project #00-1248)
Raleigh! Durham, He
. Original Neuse Buffer Determination (NBRRO 99-107)
2905 Meridian Parkway
Durham, North Carolina 27713
• Level Spreader Design Summary
[phone]
WETLAND/STREAM MAPPING: All wetland and stream location work
Charlotte, NC
was originally conducted by S&EC in 1999. McAdams has the buffer
3436 Toringdon Way
Suite 110
Charlotte, North Carolina 28277
[phone]
McAdamsCo.com
Designing Tomorrow's Infrastructure & Communities

�J McADAMS
Ms. Lyn Hardison
NC Division of Water Resources — Washington Regional Office
Duke Health-Arringdon Neuse Buffer Authorization Express Review
November 6, 2017
Page 2 of 5
determination that was obtained by S&EC (NBRRO 99-107), but does not
have the USACE JD maps. The USACE Action ID for this project is
200020096. The stream mapping and existing conditions are based off
previously approved site plans and work carried out by S&EC for the Lichtin
Corporation. McAdams concurs with the original Neuse Buffer stream and
wetland determinations.
An onsite investigation for jurisdictional wetland and stream features was
performed by Wendell Overby of S&EC, Inc. on May 5, 1999 for a project
called Page Road/Comstock Road Property, which included the subject
property, as well as adjacent properties to the south and east. The Page
Road/Comstock Road project included wetland and stream buffer permitting
for the construction of Arringdon Park Drive. The NC Division of Water
Resources (DWR; then the Division of Water Quality) field verified the
presence of stream features on the site on May 5, 1999 and documented their
findings in a letter dated June 2, 1999 (NBRRO #99-107). On October 26,
2000, DWR issued a Neuse buffer authorization and a General Water Quality
Certification 3287 for impacts related to the construction of Arringdon Park
Drive (DWQ #00-1248). S&EC also submitted an application to the USACE
on September 27, 2000 for authorization under NWP 39 of impacts to 0.112
acres of wetlands associated with the construction of Arrigndon Park Drive
(USAGE Action ID #200020096). See Figures 1-3 and the enclosed
documentation for existing conditions.
EXISTING CONDITIONS: The subject property is vegetated with a mix of
young trees and scrubby vegetation. The site was cleared between 1998 and
2002 (based on Google Earth imagery), but the property was never developed.
Arringdon Park Drive and a residential development southeast of the subject
property were constructed in the early 2000s. A residential development east
of the subject property was constructed within the last year. Land use in the
vicinity is a mix forested areas and residential uses, with some
commercial/industrial uses primarily on the south side of I-40 and northeast of
the project site.
DKH-17010

�J McADAMS
Ms. Lyn Hardison
NC Division of Water Resources — Washington Regional Office
Duke Health-Arringdon Neuse Buffer Authorization Express Review
November 6, 2017
Page 3 of 5
The site drains into an unnamed tributary to Stirrup Iron Creek that runs
southwest along the southeastern property boundary before meeting Stirrup
Iron Creek, which then runs beneath I-40. Stirrup Iron Creek is designated
Class C/NSW and is within the Neuse River basin (HUC 03020201). The
unnamed tributary to Stirrup Iron Creek is the only stream feature on the site.
It is an intermittent stream feature that originates northeast of the property,
between Page Road and NC 147, and flows southwest along the southeast
property boundary before flowing into Stirrup Iron Creek. The unnamed
tributary to Stirrup Iron Creek is depicted on both the USGS quadrangle and
the Durham County Soils Survey map, and is therefore subject to the Neuse
River Riparian Buffer Rules (Figures 1 & 2). The site is not subject to
Durham's Watershed Protection Overlay standards. There are no wetlands
within the project boundary.
PROPOSED PROJECT & IMPACTS: Proposed development on this site
will consist of the construction of a 200,000-sf 5 -story office building, a
116,410-sf 2 -story table top parking deck, and associated driveways,
sidewalks, and supporting utility/stormwater management improvements. In
the post -development condition, the site will be approximately 55 percent
impervious with most of the site discharging into one proposed stormwater
pond located on the south side of the development.
The entire site was designed to minimize impacts to aquatic resources while
utilizing the remaining parcel. There is just one buffer impact area associated
with the outfall from the stormwater pond. The proposed Neuse buffer
impacts consist of 462 sf in Zone 1 and 244 sf in Zone 2. No stream or
wetland impacts will result from this project. All sedimentation and erosion
control measures will be implemented before construction to minimize runoff.
Typical construction equipment, such as a long-arm track -hoe, front end
loader, and bush hog will be used for the initial clearing.
DKH-17010

�J McADAMS
Ms. Lyn Hardison
NC Division of Water Resources — Washington Regional Office
Duke Health-Arringdon Neuse Buffer Authorization Express Review
November 6, 2017
Page 4 of 5
TOTAL BUFFER IMPACTS:
Buffer Impact Type Zone I impact (sjl Zone 2 impact (sj?
Stormwater outfall (perm.) 462 244
TOTAL 462 244
AVOIDANCE and MINIMIZATION: Impacts to jurisdictional streams and
wetlands have been completely avoided, while impacts to stream buffers have
been minimized to the maximum extent practicable. There is a total of 462 sf
of Zone 1 Neuse buffer impacts, and 244 sf of Zone 2 Neuse buffer impacts
associated with the proposed stormwater outfall. There are no proposed
impacts to streams or wetlands. The proposed stormwater outfall is an
allowable use in Zones 1 and 2 according to the Neuse River Riparian Buffer
Rules Table of Uses.
DIFFUSE FLOW: Since the proposed project is located with the Neuse
River Basin, it is subject to the diffuse flow requirements; therefore, a level
spreader will be constructed to diffuse storm flows from the proposed project.
STORMWATER MANAGEMENT: The proposed development is located
within the Neuse River basin and will be subject to the stormwater
management performance standards for development set forth in Durham City
Code Chapter 70, Article X, Sections 70-736 through 70-741 (effective July 6,
2012). The City of Durham is a delegated authority to administer the NCDWR
Neuse River Nutrient Sensitive Waters stormwater rules. Per City of Durham
regulations, stormwater management on this site shall achieve two primary
objectives: (1) peak runoff control, and (2) nutrient loading and total
suspended solids (TSS) removal. A stormwater pond and level spreader will
be employed to meet these requirements.
A detailed Stormwater Impact Analysis has been submitted to the City of
Durham and contains final hydrologic and hydraulic calculations detailing the
expected stormwater impacts from the proposed development, including final
DKH-17010

�J McADAMS
Ms. Lyn Hardison
NC Division of Water Resources — Washington Regional Office
Duke Health-Arringdon Neuse Buffer Authorization Express Review
November 6, 2017
Page 5 of 5
design of the proposed stormwater pond and level spreader that will be used to
treat the site. The Level Spreader Design Summary is enclosed.
MITIGATION: All buffer impacts are deemed "Allowable" under the Neuse
River Riparian Buffer Rules — Table of Uses. Therefore, no mitigation is
proposed.
Consideration of this project is greatly appreciated. If you should have any
questions or require additional information, please do not hesitate to contact
me at [phone].
Sincerely,
The John R. McAdams Company, Inc.
4
Kelly Roth
Environmental Consultant
Enclosures
DKH-17010

WADAMS
AGENT AUTHORIZATION FORM
All Blanks to Be Filled In
Property Legal Description:
Parcel IDs:
0757-01-06-3834 & 0757-01-06-5655
Street Address:
5601 & 5703 Arrin don Park Drive, Durham, NC
Property owner name:
Duke University Health System, Inc.
Property owner address:
Duke University Real Estate, 324 Blackwell St., St. 950, Durham,
NC 27701
Phone:
I
Email: I
lockv, C d env
Project Information:
Project Name/Descri tion: Duke Health Arrin don
Project Number: DKH-17010
Project Manager: Stan Wingo
U.S. Army Corps of Engineers
Attn: Ross Sullivan
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
Re: Wetlands Related Consulting and Permitting
To Whom It May Concern:
I, the undersigned, registered property owners of the above noted property, do hereby authorize Kevin
Yates and Kelly Roth of The John R. McAdams Company, Inc. to act on my behalf and take all actions
necessary for the processing, issuance, and acceptance of this permit or certification and any and all
standard and special conditions attached. I hereby certify the above information submitted in this
application is true and accurate to the best of my knowledge.
This notification supersedes any previous correspondence concerning the agent for this project.
NOTICE: This authorization, for liability and professional courtesy reasons, is valid only for
government offici to enter the property when accompanied by The John R. McAdams Company,
Inc
Authoriz re Qvk99.1 4%_m Drr l NN(i VH Authorized Signature
ko_.z . k -
Date Date
Raleigh-Durham
2905 Meridian Parkway
Durham, North Carolina 27713
[phone]
Charlotte
3436 Toringdon Way, Suite 110
Charlotte, North Carolina 28277
[phone]
Designing Tomorrow's Infrastructure & Communities
McAdamsCo.com

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NOTES:
1. USGS, SOIL SURVEY SHEETS 36 AND 40, DURHAM COUNTY, NORTH CAROLINA
2. LAT. 35.884117 N, LONG: -78.829717 W
" 0 150 300
NEUSE BUFFER AUTHORIZATION Feet
FIGURE 2. NRCS SOIL SURVEY 1 inch = 300 feet
DUKE HEALTH - ARRINGDON DATE: 10/31/2017
McADAMS DURHAM, NORTH CAROLINA JOB NO: DKH-17010
DRAWN BY: roth
X:\Projects\DKH\DKH-17010\Storm\Wetlands\GIS\DKH17010 Fiqure 2 Soil Survev.mxd, 10/31/2017 11:55:32 AM, roth

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PARCEL PIN:
0757-01-06-3834
0757-01-06-5655
SITE DATA
OWNER
DUKE HEALTH
2220 WEST MAIN STREET
SUITE 650
DURHAM, NC 27705
PARCELS
0757-01-06-3834, 0757-01-06-5655
PIDs
158112, 158113
TOTAL SITE AREA
448,799 SF / 10.30 AC
EXISTING ZONING
MU(D) WITH MTC 1-40 OVERLAY
TIER
SUBURBAN
EXISTING USE
VACANT COMMERCIAL
RIVER BASIN
NEUSE
WATERSHED
OVERLAY
N/A
EX. IMPERVIOUS
SURFACE
0 AC
GENERAL NOTES:
1. BOUNDARY AND TOPOGRAHIC INFORMATION TAKEN FROM SURVEY PERFORMED BY THE
JOHN R. MCADAMS COMPANY JULY, 2013.
2. SURROUNDING PLANIMETRIC INFORMATION OBTAINED FROM DURHAM COUNTY GIS.
3. ALL DEVELOPMENT WITHIN THE FLOODWAY OR NON -ENCROACHMENT AREA OR FLOODWAY
FRINGE AND NON -ENCROACHMENT AREA FRINGE, INCLUDING FILL, NEW CONSTRUCTION,
SUBSTANTIAL IMPROVEMENTS, MANUFACTURED HOUSING, STORAGE OR MATERIALS AND
STORAGE OF TOXIC OR FLAMMABLE SUBSTANCES, IS PROHIBITED EXCEPT AS PROVIDED BY
APPLICABLE FLOOD HAZARD REGULATIONS OF LIDO SECTIONS 3.22 AND 8.4.
FLOODPLAIN ELEVATION(S): 323.8
FLOODPLAIN ZONE: AE__A
FEMA MAP NUMBER: 3720075700)
FEMA MAP DATE: MAY 2. 2006
4. THIS SITE IS IN NOT IN A WATERSHED OVERLAY DISTRICT.
5. THERE ARE NO NATURAL STEEP SLOPES ON SITE.
6. THERE ARE NO WETLANDS ON SITE.
7. NO NATURAL OR HISTORIC INVENTORY SITES HAVE BEEN IDENTIFIED ON SITE.
8. TTA BUS SERVICE (SHUTTLE 46) RUNS ALONG PAGE ROAD BUT THERE ARE NO STOPS
IN THE VICINITY OF THE SITE.
AREA #1 (20'x20')
(2) 2" SWEETGUM
(3) 1" SWEETGUM
(1) 6" PINE
(4) 5" PINE
(7) 4" PINE
(15) 3" PINE
(8) 2" PINE
(3) 1" PINE
(20) SAPLING/SHRUB
TREE SAMPLE AREA #1
NOT TO SCALE
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2) 2" MAPLE
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EX. TOP=353.52' ®o\
INV IN=347.67' / y --_---
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SS / E TREELIN� _ = FREE SAMPLE - _ / / \ - - - - - - BUFFER (TYP �' lJ —� P� D - /
AREA #4 �i % - - - 90� / ' - ��_ �4 i ° \ 'o ELEVATION DETE INED v /
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o o h BFE=323.8' BASED
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(1) 3" OAK
(2) 1" SWEETGUM
TOO DENSE (2) 1" ELM
TO MAP (2) 6" PINE
(3) 5" PINE
(4) 4" PINE
(13) 3" PINE
(15) 2" PINE
(6) 1" PINE
(11) SAPLING/SHRUB
TREE SAMPLE AREA #2
NOT TO SCALE
25" OAK
2" MAPLE
1" MAPLE
4" SWEETGUM
10" BLACK GUM
3" BLACK GUM
2" BLACK GUM
4" CEDAR
9) SAPLING/SHRUB
TREE SAMPLE AREA #4
_ NOT TO SCALE
LEGEND
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(SIZE IN
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SURVEY TOPO
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PROJECT N0. DKH-17010
FILENAME: DKH17010-XC1
DESIGNED BY: ARP
DRAWN BY: RLU
SCALE: 1 "= 40'
DATE: 07-10-2017
SHEET N0.
C-1
0 MCADAMS
CURVE TABLE
CURVE
RADIUS
ARC LENGTH CHORD LENGTH
CHORD BEARING
DELTA ANGLE
Cl
1059.78'
424.72' 421.88'
N 3930'06” E
22'57'43"
C2
20.00'
30.52' 27.64'
S 07.16'04" W
87'25'48"
C3
575.00'
103.60' 103.46'
S 41'36'32" E
10'19'24"
GRAPHIC SCALE
40 0 20 40 80
1 inch = 40 ft.
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PROJECT N0. DKH-17010
FILENAME: DKH17010-XC1
DESIGNED BY: ARP
DRAWN BY: RLU
SCALE: 1 "= 40'
DATE: 07-10-2017
SHEET N0.
C-1
0 MCADAMS

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DUKE PIN0747-011-97-5179EM INC
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PIN: 0757-01-07-7236
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TIER: SUBURBAN
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INV IN=347.82' - -
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I TRE CO AG
I' A 1 51. DI RB CE 73.
I I I i I II IIII I FL E EGULATORY R
_\\_ ODPLAI 1. NO MATERIALS
N D TR LL D ABOVE THE
TE TI P ON TI GR
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VACAN
I I I I �� \ \� I I .. .. • • _ N. Z057G, 1MU(D 9
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N ER. JB BA
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NI
No
•
PARCEL PIN:
0757-01-06-3834
0757-01-06-5655
NOTES:
1. GRADING IN THE VICINITY OF PARKING DECK IS APPROXIMATE. CRITICAL
SPOT ELEVATIONS HAVE BEEN INDICATED ON THE PLANS: REFER TO FULL
PARKING DECK DESIGN FOR CONSTRUCTION.
2. STORM DRAINAGE THROUGH PARKING DECK IS APPROXIMATE AND IS
SUBJECT TO CHANGE BASED ON PARKING DECK PLANS.
3. TRENCH DRAIN TO BE ACO POWERDRAIN S300K OR APPROVED EQUAL.
4. CONTRACTOR TO TIE FOUNDATION DRAINS FOR PARKING DECK TO STORM
DRAINAGE SYSTEM.
EW -100
DI -112
�0
\ \
INV IN=360.70 (JB -104)
\
368.90
INV OUT=374.69
T/G=353.00
INV OUT=347.79
CB -1
JB -113
INV IN=344.17 (DI -115)
RIM=387.50
INV OUT=342.92
O 0
CB -105
INV OUT=377.09
CB -102
INV OUT=368.72
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INV IN=347.82' - -
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I' A 1 51. DI RB CE 73.
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_\\_ ODPLAI 1. NO MATERIALS
N D TR LL D ABOVE THE
TE TI P ON TI GR
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VACAN
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I- I I I � I I I I I � • � • • N US . T C MM CIA
N ER. JB BA
�I I I� � � III I I II I •- •_.
NI
No
•
PARCEL PIN:
0757-01-06-3834
0757-01-06-5655
NOTES:
1. GRADING IN THE VICINITY OF PARKING DECK IS APPROXIMATE. CRITICAL
SPOT ELEVATIONS HAVE BEEN INDICATED ON THE PLANS: REFER TO FULL
PARKING DECK DESIGN FOR CONSTRUCTION.
2. STORM DRAINAGE THROUGH PARKING DECK IS APPROXIMATE AND IS
SUBJECT TO CHANGE BASED ON PARKING DECK PLANS.
3. TRENCH DRAIN TO BE ACO POWERDRAIN S300K OR APPROVED EQUAL.
4. CONTRACTOR TO TIE FOUNDATION DRAINS FOR PARKING DECK TO STORM
DRAINAGE SYSTEM.
EW -100
DI -112
I N V=342.30
T/G=380.60
INV IN=360.70 (JB -104)
INV IN=374.89 (JB -113)
DI -101
INV OUT=374.69
T/G=353.00
INV OUT=347.79
INV IN=346.84 (CB -102)
JB -113
INV IN=344.17 (DI -115)
RIM=387.50
INV OUT=342.92
INV IN=377.29 (DI -114)
CB -105
INV OUT=377.09
CB -102
INV OUT=368.72
T/C=363.00
DI -114
INV IN=357.75 (JB -103)
T/G=381.40
INV OUT=348.13
INV OUT=377.99
JB -103
FLARED END SECTION
RIM=366.85
DI -115
INV IN=360.70 (JB -104)
T/G=352.00
INV OUT=360.50
INV IN=347.99 (CB -116)
JB -104
INV OUT=347.79
RIM=368.90
INV IN=362.09 (CB -105)
CB -116
INV OUT=361.86
T/C=371.05
\TW=223.00-TOP
INV IN=365.29 (CB -117)
CB -105
INV OUT=356.40
T/C=368.82
INV OUT=368.72
INV IN=362.58 (JB -106)
CB -117
INV OUT=362.38
T/C=372.50
INV IN=369.01 (CB -118)
JB -106
INV OUT=368.80
RIM=369.85
EXISTING 10' CONTOUR
INV IN=363.09 ()
CB -118
INV OUT=362.89
T/C=376.70
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INV IN=373.30 (CB -119)
CB -107
INV OUT=373.10
T/C=370.50
SURVEY TOPO
INV IN=363.98 (CB -108)
CB -119
T/C=378.50
CB -108
INV IN=375.43 (CB -120)
T/C=370.00
INV OUT=374.69
INV IN=365.98 (CB -109)
INV OUT=365.69
CB -120
T/C=381.65
CB -109
INV IN=376.53 (CB -121)
T/C=375.80
INV OUT=376.33
INV IN=372.03 (CB -110)
INV OUT=371.83
CB -121
CB -110
T/C=381.65
T/C=379.40
INV OUT=377.45
INV IN=373.44 (DI -112)
INV IN=373.88 (DI -111)
TRENCH DRAIN
INV OUT=373.24
INV=366.98
DI -111
T/G=377.50
INV OUT=374.30
GRADING LEGEND
CA
FLARED END SECTION
-RD-RD-RD-
CATCH BASIN
DROP INLET
O
JUNCTION BOX
\-2 5-0-50
COVER PVC SCHEDULE 40 IN
TOP & BOTTOM CURB ELEVATIONS
250.00
STORM SERVICE LINE
\TW=223.00-TOP
OF WALL ELEVATION
BW=213.00-BOTTOM OF WALL ELEVATION
LIMITS OF DISTURBANCE
(NOTE: BOTTOM OF WALL IS GROUND
TREE PROTECTION/
ELEVATION NOT WALL FOUNDATION)
+ 250.60
SPOT ELEVATION
ISTREAM BUFFER
TREE COVERAGE/
1�
OPEN SPACE AREA
CITY OF DURHAM
PUBLIC WORKS DEPARTMENT
APPROVED
ENGINEERING: -
STORM WATER -
TRANSPORTATION
DATE
DATE
DATE
GRAPHIC SCALE
40 0 20 40 80
Iinch = 40 ft.
FINAL DRAWING - RELEASED FOR CONSTRUCTION
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FILENAME: DKH17010-G1
DESIGNED BY: A R P
DRAWN BY: RLU
SCALE: 1 "=40'
DATE: 09-26-2017
SHEET N0.
C-5
TIMCADAMS
STORM DRAINAGE
-RD-RD-RD-
ROOF DRAIN, 8" ADS
NON -PERFORATED TUBING OR
EQUAL 1.0% MIN. SLOPE 3' MIN.
COVER PVC SCHEDULE 40 IN
TRAFFIC AREAS
STORM SERVICE LINE
TP TP TP
TREE PROTECTION
LD LD
LIMITS OF DISTURBANCE
TP/LD-TP/LD
TREE PROTECTION/
LIMITS OF DISTURBANCE
250
10' CONTOUR
252
2' CONTOUR
250
EXISTING 10' CONTOUR
---252_ _
EXISTING 2' CONTOUR
EASEMENT LINE
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__••__••_
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SURVEY TOPO
FEMAMAPED
100 YEAR FLOODPLAIN
ISTREAM BUFFER
TREE COVERAGE/
1�
OPEN SPACE AREA
CITY OF DURHAM
PUBLIC WORKS DEPARTMENT
APPROVED
ENGINEERING: -
STORM WATER -
TRANSPORTATION
DATE
DATE
DATE
GRAPHIC SCALE
40 0 20 40 80
Iinch = 40 ft.
FINAL DRAWING - RELEASED FOR CONSTRUCTION
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PROJECT N0. D K H -1 701 0
FILENAME: DKH17010-G1
DESIGNED BY: A R P
DRAWN BY: RLU
SCALE: 1 "=40'
DATE: 09-26-2017
SHEET N0.
C-5
TIMCADAMS

DWR
State of North Carolina
Department of Environment and Natural Resources
Division of Water Resources Division of Water Resources
15A NCAC 02B .0233 (8)(b), .0243 (8)(b), .0250 (11)(b), .0259 (8)(b), .0267 (11)(c), .0607 (e)(2) - Buffer Authorization
FORM: BA 10-2013
A.
Applicant
Riparian Buffer Authorization Form Information
1.
Project Information
la.
Name of project:
Duke Health - Arringdon
1b.
County:
Durham
1c.
Nearest municipality:
Durham
1d.
Subdivision name:
1e.
Is the project located in any of North Carolina's
twenty coastal counties. If yes, answer 1f below.
❑ Yes ® No
1f.
Is the project located within a NC Division of Coastal
Management Area of Environmental Concern (AEC)?
❑ Yes ® No
2.
Owner Information
2a.
Name on Recorded Deed:
Duke University Health Systems Inc.
2b.
Deed Book and Page No.
DB: 8211 DP: 109
2c. Map Book and Page No.
(include a copy of the recorded
map that indicates when the lot
was created):
2d.
Responsible Party
(for Corporations):
Barry Clyde
2e.
Street address:
2200 West Main St., Suite 650
2f.
City, state, zip:
Durham, NC 27705
2g.
Telephone no.:
919-286-8326
2h.
Fax no.:
2i.
Email address:
[e-mail]
3.
Applicant Information (if different from owner)
3a.
Applicant is:
❑ Agent ® Other, specify:
3b.
Name:
Barry Clyde
3c.
Business name
(if applicable):
Duke University Heath Systems, Inc.
3d.
Street address:
2200 West Main St., Suite 650.
3e.
City, state, zip:
Durham, NC 27705
3f.
Telephone no.:
919-286-8326
3g.
Fax no.:
3h.
Email address:
[e-mail]
4.
Agent/Consultant Information
(if applicable)
4a.
Name:
Kelly Roth
4b.
Business name
(if applicable):
McAdams Co.
4c.
Street address:
2905 Meridian Parkway
4d.
City, state, zip:
Durham, NC 27713
4e.
Telephone no.:
919-361-5000
4f.
Fax no.:
919-361-2269
4g.
Email address:
FORM: BA 10-2013 Page 1 of 9

B.
Project Information and Prior Project History
1.
Property Identification
1a.
Property identification no. (tax PIN or parcel ID):
075701063834 and 075701065655
1 b. Site coordinates (in decimal degrees):
Latitude: 35.884117
Longitude: -78.829717
1 c.
Property size:
10.30 acres
2.
Surface Waters
2a.
Name of nearest body of water to proposed project:
Stirrup Iron Creek
2b. Water Quality Classification of nearest receiving
water:
C; NSW
2c.
River basin:
Neuse (Upper Crabtree Creek; HUC 030202010801)
FORM: BA 10-2013 Page 2 of 9

Project Information and Prior Project History
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of
this application:
The subject property is located off Page Road just east of its intersection with Arringdon Park Drive in Durham,
North Carolina. The approximately 10.30 -acres is owned by Duke University Health Systems, Inc. and will be
developed by JDavis.
The subject property is vegetated with a mix of young trees and scrubby vegetation. The site was cleared
between 1998 and 2002 (based on Google Earth imagery), but the property was never developed. Arringdon
Park Drive and a residential development southeast of the subject property were constructed in the early
2000s. A residential development east of the subject property was constructed within the last year. Land use in
the vicinity is a mix forested areas and residential uses, with some commercial/industrial uses primarily on the
south side of 1-40 and northeast of the project site.
The site drains into an unnamed tributary to Stirrup Iron Creek that runs southwest along the southeastern
property boundary before meeting Stirrup Iron Creek, which then runs beneath 1-40. Stirrup Iron Creek is
designated Class C/NSW and is within the Neuse River basin (HUC 03020201). The unnamed tributary to
Stirrup Iron Creek is the only stream feature on the site. It is an intermittent stream feature that originates
northeast of the property, between Page Road and NC 147, and flows southwest along the southeast property
boundary before flowing into Stirrup Iron Creek. The unnamed tributary to Stirrup Iron Creek is depicted on
both the USGS quadrangle and the Durham County Soils Survey map, and is therefore subject to the Neuse
River Riparian Buffer Rules (Figures 1 & 2). The site is not subject to Durham's Watershed Protection Overlay
standards. There are no wetlands within the project boundary.
All wetland and stream location work was originally conducted by S&EC in 1999. McAdams has the buffer
determination that was obtained by S&EC (NBRRO 99-107), but does not have the USACE JD maps. The
USACE Action ID for this project is 200020096. The stream mapping and existing conditions are based off
previously approved site plans and work carried out by S&EC for the Lichtin Corporation. McAdams concurs
with the original Neuse Buffer stream and wetland determinations.
An onsite investigation for jurisdictional wetland and stream features was performed by Wendell Overby of
S&EC, Inc. on May 5, 1999 for a project called Page Road/Comstock Road Property, which included the
subject property, as well as adjacent properties to the south and east. The Page Road/Comstock Road project
included wetland and stream buffer permitting for the construction of Arringdon Park Drive. The NC Division of
Water Resources (DWR; then the Division of Water Quality) field verified the presence of stream features on
the site on May 5, 1999 and documented their findings in a letter dated June 2, 1999 (NBRRO #99-107). On
October 26, 2000, DWR issued a Neuse buffer authorization and a General Water Quality Certification 3287 for
impacts related to the construction of Arringdon Park Drive (DWQ #00-1248). S&EC also submitted an
application to the USACE on September 27, 2000 for authorization under NWP 39 of impacts to 0.112 acres of
wetlands associated with the construction of Arrigndon Park Drive (USACE Action ID #200020096). See
Figures 1-3 and the enclosed documentation for existing conditions.
3b. Attach an 8'/2 x 11 excerpt from the most recent version of the USGS topographic map indicating the location
of the site. See Figure 1.
3c. Attach an 8'/2 x 11 excerpt from the most recent version of the published County NRCS Soil Survey Map
depicting the project site. See Figure 2.
3d. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
889 If
3e. Explain the purpose of the proposed project:
The proposed project will provide commercial/medical uses to southeast Durham County.
FORM: SSGP3080 8-13 Page 3 of 9

Project Information and Prior Project History
3f.
Describe the overall project in detail, including the type of equipment to be used:
Proposed development on this site will consist of the construction of a 200,000-sf 5 -story office building, a
116,410-sf 2 -story table top parking deck, and associated driveways, sidewalks, and supporting
utility/stormwater management improvements. In the post -development condition, the site will be approximately
55 percent impervious with most of the site discharging into one proposed stormwater pond located on the
south side of the development.
The entire site was designed to minimize impacts to aquatic resources while utilizing the remaining parcel.
There is just one buffer impact area associated with the outfall from the stormwater pond. The proposed Neuse
buffer impacts consist of 462 sf in Zone 1 and 244 sf in Zone 2. No stream or wetland impacts will result from
this project. All sedimentation and erosion control measures will be implemented before construction to
minimize runoff. Typical construction equipment, such as a long-arm track -hoe, front end loader, and bush hog
will be used for the initial clearing.
4.
Jurisdictional Determinations
4a.
Have jurisdictional wetland or stream determinations by the
® Yes ❑ No ❑ Unknown
Corps or State been requested or obtained for this property/
Comments:
project (including all prior phases) in the past?
4b.
If yes, who delineated the jurisdictional areas?
Agency/ Consultant Company: S&EC, Inc.
Name (if known): Wendell Overby
Other:
4c.
If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach
documentation.
-DWR issued buffer determination letter on June 2, 1999 for the subject property and neighboring properties
(NBRRO 99 107; no expiration).
5.
Project History
5a.
Have permits or certifications been requested or obtained for
® Yes ❑ No ❑ Unknown
this project (including all prior phases) in the past?
5b.
If yes, explain and detail according to "help file" instructions.
-S&EC requested authorization from the USACE under NWP 39 for impacts to 0.112 acres of wetlands
associated with the construction of Arrigndon Drive (USACE Action ID #200020096).
-DWR (then DWQ) issued a Neuse buffer authorization and a General Water Quality Certification 3287 for
impacts related to the construction of Arringdon Drive on October 26, 2000 (DWQ #00-1248).
6.
Future Project Plans
6a.
Is this a phased project?
❑ Yes ® No
6b.
If yes, explain.
FORM: SSGP3080 8-13 Page 4 of 9

C. Proposed Impacts Inventory
1. Buffer Impacts
1a. Project is in which protected
® Neuse
❑ Tar -Pamlico ❑ Catawba
basin?
❑ Randleman
❑ Jordan ❑ Goose Creek
1 b. Individually list all buffer impacts below. If any impacts
require mitigation, then you MUST fill out Section D of
this form.
Buffer impact
Reason for
Type of impact
Stream name
Buffer
Zone 1
Zone 2
number —
impact
(exempt, allowable,
mitigation
impact
impact
Permanent (P)
allowable w/
required?
(sq ft)
(sq ft)
or Temporary
mitigation)
T
B1 ® P ❑ T
Riprap outfall for
Allowable
UT to Stirrup
❑ Yes ® No
462
244
stormwater pond
Iron Creek
B2 ❑ P ❑ T
❑ Yes ❑ No
B3 El El
El Yes El No
B4 ❑ P ❑ T
❑ Yes ❑ No
B5 El El
El Yes El No
B6 ❑ P ❑ T
❑ Yes ❑ No
Total
buffer impacts
462
244
1 c. Comments:
FORM: BA 10-2013 Page 5 of 9

C. Impact Justification and Mitigation, continued
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Impacts to jurisdictional streams and wetlands have been completely avoided, while impacts to stream buffers
have been minimized to the maximum extent practicable. There is a total of 462 sf of Zone 1 Neuse buffer
impacts, and 244 sf of Zone 2 Neuse buffer impacts associated with the proposed stormwater outfall. There are
no proposed impacts to streams or wetlands. The proposed stormwater outfall is an allowable use in Zones 1
and 2 according to the Neuse River Riparian Buffer Rules Table of Uses.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction
techniques.
All proper sedimentation and erosion control measures will be implemented, and there is a stormwater
management facility designed to treat and minimize runoff. The implementation of a level spreader will improve
downstream bank stabilization during high-flow storm events.
The proposed development is located within the Neuse River basin and will be subject to the stormwater
management performance standards for development set forth in Durham City Code Chapter 70, Article X,
Sections 70-736 through 70-741 (effective July 6, 2012). The City of Durham is a delegated authority to
administer the NCDWR Neuse River Nutrient Sensitive Waters stormwater rules. Per City of Durham
regulations, stormwater management on this site shall achieve two primary objectives: (1) peak runoff control,
and (2) nutrient loading and total suspended solids (TSS) removal. A stormwater pond and level spreader will
be employed to meet these requirements. A detailed Stormwater Impact Analysis has been submitted to the
City of Durham and contains final hydrologic and hydraulic calculations detailing the expected stormwater
impacts from the proposed development, including final design of the proposed stormwater pond and level
spreader that will be used to treat the site. The Level Spreader Design Summary is enclosed.
Proper sedimentation and erosion control methods will be utilized during all phases of construction and
installation, as described in the Erosion Control Plan sheets to be reviewed and approved by the NC Division of
Land Quality and/or the Durham County Stormwater and Erosion Control Division. All work will take place
during dry conditions and can be facilitated from high, non -jurisdictional, stable ground adjacent to the
shoreline. The contractor shall install silt fence, inlet protection, sediment traps, diversion ditches, tree
protection, and other measures as shown on the erosion control plans, clearing only as necessary to install
these devices. All erosion and sediment control measures will be checked for stability and operation following
every runoff producing rainfall, but in no case less than once every week. Any needed repairs will be made
immediately to maintain all measures designed. An erosion control inspections report is required and will be
kept by the owner's representative.
All slopes shall be graded no steeper than the angle that can be retained by vegetative cover or other adequate
erosion control devices or structures. No material for construction will be placed in wetlands, streams, or Neuse
Buffers at any time. Excavation will be limited to the area necessary for site preparation; all excavated material
will be placed and retained on high ground above the flood pool elevation. All excavated material will be placed
landward of the normal pool elevation contour on high ground and confined by adequate dikes or other
retaining structures to prevent erosion and sedimentation into adjacent waters, wetlands, or Neuse Buffers.
FORM: SSGP3080 8-13 Page 6 of 9

C. Impact Justification and Mitigation, continued
2.
Buffer Mitigation
2a.
Will the project result in an impact within a protected riparian buffer that requires buffer
mitigation?
❑ Yes ® No
2b.
If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation and
calculate the amount of mitigation required in the table below.
Zone Reason for impact Total impact Multiplier Required mitigation
(square feet (square feet
Zone 1 3 (2 for Catawba)
Zone 2 1.5
Total buffer mitigation required:
2c.
If buffer mitigation is required, is payment to a
mitigation bank or NC EEP proposed?
❑ Yes ❑ No
2d.
If yes, attach the acceptance letter from the mitigation bank or NC EEP.
2e.
If no, then discuss what type of mitigation is proposed.
2f.
Comments:
FORM: SSGP3080 8-13 Page 7 of 9

E. Diffuse Flow Plan
All buffer impacts and high ground impacts require diffuse flow or other form of
® Diffuse flow
stormwater treatment. Include a plan that fully documents how diffuse flow will be
❑ Other BMP
maintained. If a Level Spreader is proposed, attach a Level Spreader Supplement Form.
1 a.
If due to site constraints, a BMP other than a level spreader is proposed, please provide a
❑ Yes ® No
plan for stormwater treatment as outlined in Chapter 8 of the NC Stormwater BMP
of public (federal/state) land?
Manual and attach a BMP Supplement Form.
1 b.
The proposed project is located within the Neuse watershed and will be subject to the
❑ Yes ❑ No
Neuse Riparian Buffer Rules. One stormwater management facility with a level spreader
environmental document pursuant to the requirements of the National or State (North
is proposed on this site. The proposed stormwater management facility is designed in
accordance with the N.C. Stormwater Design Manual (NCDEQ). The Level Spreader
Design Summary submitted to the City of Durham is attached.
If you answered "yes" to the above, has the document been finalized by the State
F.
Supplementary Information
1.
Environmental Documentation
1 a.
Does the project involve an expenditure of public (federal/state/local) funds or the use
❑ Yes ® No
of public (federal/state) land?
1 b.
If you answered "yes" to the above, does the project require preparation of an
❑ Yes ❑ No
environmental document pursuant to the requirements of the National or State (North
Carolina) Environmental Policy Act (NEPA/SEPA)?
1 c.
If you answered "yes" to the above, has the document been finalized by the State
❑ Yes ❑ No
Clearing House? (If so, attach a copy of the NEPA or SEPA final approval letter.)
Comments:
2.
Violations
2a.
Is the site in violation of DWR Wetland Rules (15A NCAC 02H .0500), Isolated Wetland
❑ Yes ® No
Rules (15A NCAC 02H .1300), DWR Surface Water or Wetland Standards, or Riparian
Buffer Rules (15A NCAC 02B .0200)?
2b.
Is this an after -the -fact permit application?
❑ Yes ® No
2c.
If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
Kelly Roth �e 11/06/2017
Applicant/Agent's Printed Name pplica Agen 's Si nature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Send 3 complete sets of this form and accompanying documents to the following:
For government transportation projects sent For government transportation projects sent by
by First Class Mail via the US Postal Service: delivery service (UPS, FedEx, etc.).-
NC
tc.):NC DWR, Transportation Permitting Unit OR NC DWR, Transportation Permitting Unit
1617 Mail Service Center 512 N. Salisbury Street
Raleigh, NC 27699 - 1617 Raleigh, NC 27604
For all other projects sent by First Class Mail
via the US Postal Service
OR For all other projects sent by delivery service
(UPS, FedEx, etc.).-
FORM:
tc.):
FORM: BA 10-2013 Page 8 of 9

Karen Higgins Karen Higgins
NCDWR — 401 & Buffer Permitting Branch NCDWR — 401 & Buffer Permitting Branch
1617 Mail Service Center 512 N. Salisbury Street
Raleigh, NC 27699 - 1617 Raleigh, NC 27604
FORM: SSGP3080 8-13 Page 9 of 9

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
Adam Lichtin
Lichtin Corporation
3110 Edwards Mill Road
Raleigh, NC, 27612
APPROVAL of Neuse River Buffer Rules
Dear Mr. Lichtin:
D E N R
October 26, 2000
DWQ# 00-1248
Durham County
You have our approval to construct a road crossing over Stirrup Iron Creek at the Arringdon project in
Durham County, as described in your application received by the Division of Water Quality on September 27,
2000. After reviewing your application, we have determined that this fill is covered by General Water Quality
Certification Number 3287. This approval is valid for the Neuse River Buffer Rules (15A NCAC 2B .0233). In
addition, you should get any other federal, state or local permits before you go ahead with your project including
(but not limited to) Sediment and Erosion Control, Non -Discharge and Water Supply Watershed regulations.
This approval is only valid for the purpose and design that you described in your application. If you
change your project, you must notify us and you may be required to send us a new application for a new approval
or certification. If the property is sold, the new owner must be given a copy of the Certification and approval letter
and is thereby responsible for complying with all conditions. If total wetland fills for this project (now or in the
future) exceed one acre, compensatory mitigation may be required as described in 15A NCAC 2H.0506 (h).
If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing.
You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition
conforming to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, P.O.
Box 27447, Raleigh, N.C. 27611-7447. This certification and its conditions are final and binding unless you ask
for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act.
If you have any questions, please telephone John Dorney at 919-733-9646.
Sincerely,
. Steven
Non -Discharge Branch 1621 Mail Service Center Raleigh, North Carolina 27699-1621
Telephone [phone] FAX # [phone]
An Equal Opportunity Affirmative Action Employer 5096 recycled/ 10% post consumer paper

cc: Corps of Engineers Raleigh Field Office
Raleigh DWQ Regional Office
Central Files
File Copy
Kevin Martin, 11010 Raven Ridge Road, Raleigh, NC, 27614
001248

Environmental Consultants, Inc.
Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
September 27, 2000
S&EC, Inc. Project #99-4509
US Army Corps of Engineers -Regulatory NCDENR-DWQ ®^ 1 2 4 g
Attn: Mr. Todd Tugwell Attn: Mr. John Dorney U
6508 Falls of Neuse Road, Suite 120 4401 Reedy Creek Rd.
Raleigh, NC 27615 Raleigh, NC 27607
Dear Mr. Tugwell and Mr. Dorney:
The purpose of this letter is to notify the US Army Corps of Engineers (USACE) of our client's request to
use Nationwide Permit 39 for the proposed mixed-use project known as Arringdon. Additionally, we
request confirmation of compliance with the Neuse River buffer regulations from the NC Division of Water
Quality (DWQ). The property is located east of Page Road (SR 1973) and north of Interstate 40 along the
Durham and Wake County line. The site is shown on the attached plans and USGS Topo Quad vicinity
map. Impacts totaling 0.112 acres of vegetated wetland and 0 linear feet of Waters are proposed (see
impact map). Proposed impacts will be in the form of lot fills. A proposed road crossing over
jurisdictional `Waters' will occur in the form of an arched culvert resulting in no stream impact (see impact
map). 'Because proposed impacts are below NW 39 DWQ wetland impact notification thresholds (less
than 113 acres and 150 linear feet) this application does not require written concurrence from the
DWQ for use of the 401 certification. The DWQ is being notified of the proposed impacts for
Arringdon due to Neuse River buffer impacts for 1 road crossing (see attached). Stormwater
treatment should not be required since a 401 is not required.
Surface waters subject to the Neuse River buffer regulations have been confirmed by the DWQ (NBRRO
99 107 -see attached letter). Proposed impacts to the riparian buffer are one perpendicular road crossing
with 140 feet clearing limits (see attached). The proposed impacts are allowed under the current Neuse
River buffer regulations without requiring a variance from the Environmental Management Commission
and without buffer mitigation.
S&EC believes no further mitigation should be required for the Arringdon project based on the amount of
impacts proposed. Minimization and avoidance has been demonstrated by the location of structures
relative to wetlands and the use of arched culverts for a proposed stream crossing (see attached). If for
some reason mitigation is required by the USACE, our client proposes payment into the North Carolina
Wetland Restoration Fund.
Included are: (1) a completed Pre -Construction Notification application, (2) Agent Authorization Form, (3)
USGS Site Vicinity Map, (4) Site Plans, (5) DWQ Neuse River buffer letter, and (6) Wetland Delineation
Forms.
Please call if you have questions or require further information. If you intend to perform site visits please
call and we will arrange for someone to accompany you.
Sincerely,
A� 'al
Wendell Overby
wo
Wetland Delineation/Permitting/Mitigation Soil/Site Evaluations On -Site Septic S
Neuse Basin and Watershed Buffer Evaluations Groundwater Hvdro
k SEP 2 7 2000
Western Branch Offices: [phone] • [phone] • [phone]
P,,

DWQ ID:
�)o1248
Corps Action ID: 200020096
Nationwide Permit Requested (Provide Nationwide Permit #): 39
Pre -Construction Notification Application
For Nationwide Permits that Require:
1) Notification to the Corps of Engineers
2) Application for Section 401 Certification
3) Coordination with the NC Division of Coastal Management
Send the original and (1) copy of this completed form to the appropriate field office of
the Corps of Engineers (see agency addresses sheet). Seven (7) copies should be sent to
the NC Division of Environmental Management (see agency addresses sheet). PLEASE
PRINT.
1. Owner's Name: Lichtin Corporation (Adam Lichtin)
2.
Mailing Address: 3110 Edwards Mill Road
Subdivision Name: Arringdon
City: Raleigh State: NC
Zip Code: 27612
Project location address, including subdivision name (if different from mailing address
above): North of I-40, West of 540, East of Page Rd in Durham (SR 1973), south of
Comstock Rd (SR 1972).
3) Telephone Number (Home):
(Work): 919.783.6000
4) If applicable, agent's name or responsible corporate official, address, phone
number:
Soil and Environmental Consultants, Inc Phone: [phone]
11010 Raven Ridge Road Fax: [phone]
Raleigh, NC 27614
5. Location of work (provide a map, preferable a copy of USGS topographic map or
aerial photograph with scale):
County: Durham Nearest town or city: Durham

Specific Location (include road numbers, landmarks, etc.):
see above and enclosed USGS vicinity map
6. Impacted or nearest stream/ river: Stirrup Iron
River Basin: Neuse
7a. Is project located near water classified as trout, tidal saltwater (SA), high quality
waters (HQW), outstandiresource waters (ORW), water supply (WS -I or WS -
II)? YES ❑ NO a If yes, explain:
7b. If the project is located within a North Carolina division of coastal management
area of environmental concern (AEC)? YES ❑ NO
7c
If the project is located within a coastal county (see page 7 for list of coastal
counties), what is the land use plan (LUP) designation?
8a. Have an Section 404 permits been previously requested for use on this property?
YES ❑y NO ® If yes, provide Action ID number of pervious permit and
any additional information (including photocopy of 401 certification).
8b. Are additional permit requests expected for this property in the future?
YES ❑ NO ® If yes, describe anticipated work:
9a. Estimated total number of acres in tract of land
96.15
9b. Estimated total number or acres of wetlands located on project site: 0.38

10a. Number of acres of wetlands impacted by the proposed project by:
Filling: 0.11
Flooding:
Drainage:
Excavation:
Other:
Total acres to be impacted: 0.112
10b. (1) Stream channel to be impacted by the proposed project (if relocated,
provide distance both before and after relocation):
Length before: n/a
After: n/a
Width Before (based on normal high water contours)
Width After: n/a
Average depth before: n/a
After: n/a
n/a
(2) Stream channel impacts will result from: (check all that apply)
Open channel relocation: ❑ Placement of pipe in channel: ❑
Channel Excavation: ❑ Construction of a Dam/Flooding: ❑
Other: no channel impacts proposed
11. If construction of a pond is proposed, what is the size of the watershed draining to
the pond? no pond proposed
What is the expected pond surface area? n/a
12. Description of proposed work including discussion of type of mechanical
equipment to be used (attach plans 81/2" x 11" drawings only):
Construction of mixed-use project. Heavy machinery will be used for grading and
clearing of areas shown on site plan.

13. Purpose of proposed work: Construction of commercial and mixed use facilities
14. State reasons why it is believed that this activity must be carried out in wetlands
(include any measures taken to minimize wetland impacts): No channel impacts
other than <150' of buffer clearing for 1 road xing. Crossing will involve arched
culverts that span creek. Avoidance of largest wetland area 'D'.
15. You are required to contact the U.S. Fish and Wildlife Service (USFWS) and/or
National Marine Fisheries Service (NMFS) (see agency addresses sheet) regarding
the presence of any federally listed or proposed for listing endangered or
threatened species or critical habitat in the permit area that may be affected by the
proposed project. Date contacted: (attach responses from these agencies).
To be done by USACE
16. You are required to contact the state historic preservation officer (SHPO) (see
agency address sheet) regarding the presence of historic properties in the permit
area which may be affected by the proposed project. Date contacted: To be done
USACE
17. Does the project involve an expenditure of public funds or the use of public (state)
land?
YES ❑ NO ® If no, go to 18.
a. If yes, does the project require preparation of an environmental document
pursuant to the requirements of the North Carolina Environmental Policy
Act?
YES ❑ NO ❑
b. If yes, has the document been reviewed through the North Carolina
Department of Administration State Clearinghouse?
YES ❑ NO ❑
If answers to 17b is YES, then submit appropriate documentation from the state
clearinghouse to division of environmental management regarding compliance
with the North Carolina Environmental Policy Act.

Questions regarding the State Clearinghouse review process should be directed to
Ms. Chrys Baggett, Director State Clearinghouse, North Carolina Department of
Administration, 116 West Jones Street, Raleigh, North Carolina 27603-8003,
telephone [phone].
18. The following items should be included with this application if proposed activity
involves the discharge of excavated or fill material into wetlands:
a. Wetland delineation map showing all wetlands, streams, lakes and ponds on
the property (for Nationwide Permit numbers 14, 18, 21, 26, 29 and 38). All
streams (intermittent and permanent) on the property must be shown on the
map. Map scales should be 1 inch equals 50 feet or 1 inch equals 100 feet or
their equivalent.
b. If available, representative photograph of wetlands to be impacted by project.
C. If delineation was performed by a consultant, include all data sheets relevant
to the placement of the delineation line.
d. Attach a copy of the stormwater management plan, if required.
e. What is land used of surrounding property? Commercial, residential, and
farmland
f. If applicable, what is proposed method of sewage disposal? Municipal
g. Signed and dated agent authorization letter, if applicable.
NOTE: Wetlands or Waters of the U.S. may not be impacted prior to:
1. Issuance of a Section 404 Corps of Engineers Permit,
2. Either the issuance or waiver of a 401 Division of Environmental
Management (Water Quality) certification, and
3. (in the twenty coastal counties only) A letter from the North Carolina
Division of Coastal Management stating the proposed activity is consistent
with the NoFt C olina Coastal Management program.
Owner's/Agent' S Sig a re Date
(Agent's signature valid only if Agent Authorization Letter from the owner is provided
(18 g.))

09/?1/2000 09:38 9198525534 BBM ASSOCIATES INC PAGE 02
Sep 19 00 11:484 Lichtin Corporation 919-763-7220 p.2
09/15/2000 '66:47 9196525594 SBM ASSOCIATES TNC PAGE 02
09/12/2000 08:47 9198469467 S EG PAGE 02
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GOVERNOR r
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
RALEIGH REGIONAL OFFICE
DIVISION OF WATER QUALITY
May 28, 1999
T2,
Mr. Wendell Overby
S&EC, Inc. �1
244 West Millbrook Road ---
Raleigh, NC 27609
Subject: Neuse River Basin
Riparian Buffer Rules
NBRRO 99 107
Page Road / Comstock Road Property
Wake County
Dear Mr. Overby:
On May 5, 1999, I conducted a site visit of the stream features involved in the above
referenced project. It was determined as a result of the site visit that the water body
channels present on the property were intermittent streams and therefore subject to the
Neuse River Basin: Nutrient Sensitive Waters Management Strategy; Protection and
Maintenance of Existing Riparian Areas, Administrative Code T15A:02B.0233 (NCAC
0233). The intermittent channels and the approximate placement of the buffer area is
defined on the attached plan. The entire length of channel A is shown protected. The
starting point of the Neuse Buffer on the remaining channels are located as follows flag #47
on channel B, flag #32 on channel C, and flag #200 on channel D.
This office has assigned the reference number of NBRRO 99 107 to this project.
Thank you for your attention to this matter and if this Office can be of any assistance or if
you have any additional questions concerning this letter, please do not hesitate to contact
me at 571-4700 ext. 245.
Sincerly,
(I /
6-Z--
harles Brown
Environmental Specialist
cc: John Dorney, DWQ
\neusbuf.let\nbr99107.let
3800 BARRETT DRIVE, SUITE 101, RALEIGH. NORTH CAROLINA 27609
PHONE [phone] FAX [phone] B
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/109x' POST -CONSUMER PAPER

Delineation Performed by: Soil & Environmental Consultants, Inc.
W01L AN D 244 West Millbrook Road 231 16th Avenue NE
Raleigh, NC 27609 Hickory, NC 28601
N "(Z F -LA& 35 Phone: [phone] Phone: [phone]
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manuals/s /"��q
Project/Site: A41; P-17Date:
Applicant/Owner: Pavdlm F`wtc County: Pel"—
Investigator:
W k'r- mel-( State: NG
Do normal circumstances exist on the site?
Is the site significantly disturbed
(A typical situation)?
Is the area a potential problem area?
(If needed, explain on reverse.)
10 No Community ID:
yes do Transit ID:
Yes d!n Plot ID: _
VEGETATION
Dominant Plant Species
tratum
i r
Dominant Plant Species
1 �c.vws Aw+c►2tcM+A
T
FAc+N
9. UAV --;'!2W M-a-to'p
10. AAUVLn--tn
3. NYss� SYcv�-crc14
T
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11. S/Y11 LA k Rf3TViJOit/+i
4.
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1/
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14.
15.
7.
8.
16.
StrdicaWr
� u o
�— FAc
Percent of dominant species that are OBL, FACW or FAC (excluding FAC-):
Remarks:
HYDROLOGY
Recorded Data (describe in remarks)
Stream, Lake or Tide Gauge
Aerial Photographs
Other
X No Recorded Data Available
Field Observations:
Depth of Surface Water: 2-0 (m.)
Depth to Free Water in Pit: 0-12. (in.)
Depth to Saturated Soil:
Remarks:
0 --1? (in.)
•r
Wetiand Hydrology Indicators:
Primary Indicators:
X Inundated
X Saturated in Upper 12 Inches
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Sc con IM Indicators: (2 or more required)
X Oxidized Root Channels in
Upper 12 Inches
Water -Stained Leaves
Local Soil Survey Data
Pe FAC Neutral Test
Other (explain in remarks)
WLdata.frm

SOILS
Map Unit Name
(Series and Phase): WeKeco M=t, Drainage Class: f t -,q
Field Observations
Taxonomy (Subgroup): F1-uVAwewT1f NbcA-�1S Confirm Mapped Type? I8 No
Profile Description:
DWAh Matrix Color
(ing.
D - (a H A on ( )
toyR /t
b- I -e _15, I)O y R 4/1
Histosol
Histic Epipedon
Sulfidic Odor
Aquic Moisture Regime
✓ Reducing Conditions
Gleyed or Low-Chroma Colors
Remarks:
• • • ►/• MAMPALWO i N MM. • 1_
L
_ Concretions
— High Organic Content in Surface Layer in Sandy Soil
_ Organic Streaking in Sandy Soils
Listed on Local Hydric Soils List
✓ Listed on National Hydric Soils List
— Other (explain in remarks)
Wetland Determination
(circle yes or no)
Hydrophytic Vegetation Present? YV No
Wetland Hydrology Present? No
Hydric Soils Present? No
is This Sampling Point Within a Wetland? No
Remarks:
WLdata.frm

Delineation Performed by: Soil & Environmental AvenueConsultants, Inc.
244 West Millbrook Road NC 28601
U PC A N p Raleigh, NC 27609 Hickory,
Phone: [phone] Phone: [phone]
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: PA" W Date: 51f /99
Applicant/Owner: been 5 County. ou!'HIvq
Investigator:
w u n BY State: Nc
Do normal circumstances exist on the site?
Is the site significantly disturbed
(A typical situation)?
Is the area a potential problem area?
(If needed, explain on reverse.)
VEGETATION
Dominant
Plant Species
traW
1.
PINUS •rrtepA
T
2.W110Of-WO Rcrj
T
3•
'TUVI PtRPA
4.
NuCA P u gPow,
T
5.
CARPwO CA (Jo �N1AMl:
i
6.
c,4t w jS pw,: 4014
5
7.
LUNu eVA .3"&&ICA
8.
1L" OPACq
5
ao No CommunityID:
Yes a Transit ID:
Yes 6P Plot ID: UPi"OWo
Indicator pominant nt Species , tratum n i r
Fhc' 9. Favus 6""PIMu1111 T F�W-o
F4K
11
Percent of dominant species that are OBL, FACW or FAC (excluding FAC-):
Remarks:
HYDROLOGY
Recorded Data (describe in remarks)
Stream, Lake or Tide Gauge
Aerial Photographs
Other
_ No Recorded Data Available
Field Observations:
Depth of Surface Water: (in.)
Depth to Free Water in Pit: (in.)
Depth to Saturated Soil:
Remarks:
EX
Wetland Hydrology..Indicators:
r
Inundated
Z— Saturated in Upper 12 Inches
Water Marks
Drift Lines
�— Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators (2 or more required)
Oxidized Root Channels in
Upper 12 Inches
Water -Stained Leaves
Local Soil Survey Data
FAC Neutral Test
Other (explain in remarks)
WLdata.frm

SOILS
Map Unit Name
(Series and Phase): M A`t' Op Rte Drainage Class: w 1L4 -
Field Observations
Taxonomy (Subgroup): --i-` f iL HAP i V 0VL-T Confirm Mapped Type? (a No
Profile Description:
D-eptl Matrix Color Mottle Colors Mottle Texture Concretions,
(us,) Horizon (Munsell Moist) (Munsell Moist) Abundance/ Contras Structure etc.
0-4 A lo`(R g/Z Sl,
4---10 E B iolp 5L
Io -IH YR S/g scc
- I -t.. �.
Histosol
i Histic Epipedon
Sulfidic Odor
Aquic Moisture Regime
Reducing Conditions
Gleyed or Low-Chroma Colors
Remarks:
Concretions
High Organic Content in Surface Layer in Sandy Soil
Organic Streaking in Sandy Soils
Listed on Local Hydric Soils List
Listed on National Hydric Soils List
Other (explain in remarks)
Wetland Determination
(circle yes or no)
Hydrophytic Vegetation Present? )qD No
Wetland Hydrology Present? Yes d9"d
Hydric Soils Present? Yes 10
Is This Sampling Point Within a Wetland? Yes d.STD
Remarks:
WLdata.frm

MEMORANDUM
TO: John Dorney Regional Contact: Charles Brown
Non -Discharge Branch WO Supervisor: Ken Schuster
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name Arrin2don c/o Lichtin Cor
Project Number 00 1248
Recvd From APP
Received Date 9/27/00 Recvd By Region
Project Type commercial
County Durham
County2
Region Raleigh
Certificates Stream Stream Impacts (ft.)
Permit Wetland Wetland Wetland Stream Class Acres Feet as
Type Type Impact Score Index Prim. Supp. Basin Req. Req.
–73-9F—PT OO N F 27-33-4-2 C NSW 30,402. 0.11 F r— �—
NBR F_OY (D" F F—F—F—F—F—F— F_F__
Mitigation Wetland
MitigationType Type Acres Feet
Is Wetland Rating Sheet Attached? 0 Y (0 N Did you request more info? 0 Y (0 N
Have Project Changes/Conditions Been Discussed With Applicant? 0 Y 0 N
Is Mitigation required? 0 Y 0 N Recommendation: * Issue 0 Issue/Gond 0 Deny
Provided by Region: Latitude (ddmmss) 355249 Longitude (ddmmss) 784926
Innnarts are less Than 1/3 of an acre an"ad crossi-io are allowable–.TWev are 4stalfta_oDe-i
•. .0 �-• • �• .o• IN -1 1 W-11toil 111TAYN iM 11-- is
cc: Regional Office
Central Office Page Number 1

Facility Name Arringdon c/o Lichtin Corp County Durham
Project Number 00 1248 Regional Contact: Charles Brown
Date:
Comments (continued from page 1):
cc: Regional Office Page Number 2
Central Office

Re: Arringdon Project
Subject: Re: Arringdon Project
Date: Wed, 13 Sep 2000 08:53:43 -0400
From: John Dorney <[e-mail]>
To: tstjohn <[e-mail]>
CC: Andy Padiak <[e-mail]>, [e-mail]
I'd say better leave room for a constucted wetland if the river basin is nutrient
sentitive or a wet pond if not.
tstjohn wrote:
> I am on vacation right now... but i'll be back friday... then i'll be gone 'till
> October... if you have to notify you'll likely have stormwater... if this
> doesn't answer your question feel free to call me on friday... if you need an
> answer sooner, please call John Dorney or Cyndi Karoly at [phone] or
> email them... tell them what river basin you're in and what permit the the USACE
> is going to use (ie NW 14, NW 39, etc.)
> Andy Padiak wrote:
> > Todd:
> > We are working on a master plan for a large mixed-use development (96 acres)
> > in Durham. We are going to be notifying that we need to fill in a small
> > amount of wetlands in order to construct a roadway crossing very soon. We
> > would like to set up a meeting with you in order to get your thoughts on
> > whether or not we will need water quality ponds.
> > Please give me a call or send me an e-mail.
> > Thank you,
> > Andrew Padiak
> > Project Manager
> > BBM Associates, Inc.
> > 527 Keisler Drive, Suite 104
> > Cary, North Carolina 27511
> > 919-852-5540
1 01,1 10/26/00 4:50 PM

DURHAM
City of Durham
Public Works Department
Stormwater Services Divisions
C
CRY a MEDICINE 101 City Hall Plaza, Durham, North Carolina, 27701
Telephone [phone] FAX [phone]
Level Spreader* Design Summary
Stormwater Management Construction Plan Review:
A complete stormwater management construction plan submittal includes a design summary for
each stormwater BMP, design calculations, plans and specifications showing BMP, inlet and outlet
structure details.
I. PROJECT INFORMATION
Project Name:
PIN:
Design Contact Person:
Legal Name of Owner:_
Owner Contact:
Owner Address:
Case #:
Phase
Phone #: (�
Phone #: O
Deed Book Page # or Plat Book Page# for BMP Property
For projects with multiple facilities, specify which facility this worksheet applies to:
*Water Quality Treatment: % TSS Nitrogen Phosphorous _ other
*Pollutant removal credits are achieved ONLY when the Vegetated Filter Strip (VFS) is an
engineered filter strip
Is there a BMP Upstream of the proposed Level Spreader? Yes / No
If yes, *Type of BMP
Drawdown Flow from the BMP cfs
* Per the buffer rules, a level spreader is NOT needed down slope of a stormwater wetland,
bioretetention area or any other BMP that removes a minimum of 30% TN and 30% TP.
If No, Please provide below drainage area information:
Drainage area
ft,
Impervious area
ft2
Percent Impervious
%
Peak flow
cfs (flow from 1 -inch per hour storm)
Peak flow
cfs (flow from 10 -year storm)
**When it appears that the location of a level spreader may be infeasible or inappropriate,
coordination with the Stormwater Services Division to discuss alternative solutions (i.e., the
provision of alternative water quality BMPs, etc) shall be required.

"Please see Section 8.3 for information on Level Spreader design. Note that Preformed Scour
holes are NO longer allowed in lieu of LS. Where does the Level Spreader Discharge i.e. the type of
Vegetated Filter Strip (VFS)
_Engineered Filter Strip, _Riparian Buffer 2 Where does the Level Spreader
Discharge i.e. the type of Vegetated Filter Strip
Slope within the VFS _ %
'Max Average Slope cannot exceed 8% ; a minimum level spreader length of at least 10 linear
feet shall be provided for each I cfs of design flow; the design flow entering the level spreader
cannot exceed 10 cfs; and
2 Max Average Slope cannot exceed S%; the design flow entering the level spreader (typically,
the 1 -inch per hour event) cannot exceed 2 cfs; a minimum level spreader length of at least SO
linear feet shall be provided for each I cfs of design flow.
Are there any naturally occurring channels downstream of the level spreader present? _Yes No
If yes, explain how sheet flow condition is sustained
Level Spreader design
Forebay Surface area
Design flow entering level spreader
Length of level Lip
Bypass channel length
Invert elevation of I -inch per hour (flow splitter)
Invert elevation of 1—inch per hour bypass
Peak velocity in the bypass channel
Reinforcement for bypass channel
II. REQUIRED ITEMS CHECKLIST
ft2
cfs
ft
ft
ft
ft
ft/sec (10 -year event)
(provide calculations)
The following checklist outlines design requirements. Initial in the space provided to indicate the
following design requirements have been met and supporting documentation is attached.
Applicant's initials
a. A description of the VFS characteristics downstream of the proposed level
spreader location has been provided.
b. Sizing of the level spreader (e.g., proposed length) based on design flow has
been provided.
c. Level Spreader shall be concrete
d. A blind swale is required immediately upslope of the lip for stromwater
distribution. Blind swales shall be designed as 10 -ft wide linear wetlands and
shall be planted as such.
e. Forebay has been provided with a surface area of 0.2% of the contributing
drainage area's impervious surface

f.
g. Evaluation (i.e., discharge rates, erosive potential, etc.) of the high-flow bypass
channel has been provided.
h. When an engineered filter strip is to be used, this strip shall be placed in an
easement and this filter strip area shall be maintained as a dense grass in
perpetuity. The design drawings should reflect this as well.
i. A construction sequence that shows how the level spreaders will be protected
from sediment until the entire drainage area is stabilized is provided.
j. Riprap outlet protection, if provided, reduces flow to non-erosive velocities.
k. A recorded drainage easement is provided for each level spreader including
access to the nearest right-of-way and is graded per Section 8.3, Stormwater
Control Facilities (BMPs).
1. An annual operation and maintenance plan is provided.
in. A plan view of the level spreader system is provided.
n. Details for the flow bypass structure are provided. Invert elevations are shown.
o. A #57 stone is specified downstream of the level spreader.
p. Runoff from storms larger than the 1 -inch per hour storm is routed around the
level spreader,
Note: Executed Stormwater Facility Operation and Maintenance Permit Agreement,
payment of $700 permit fee per facility are required prior to construction drawing approval.

�y. 1 J •.LCI DAi.1..S
� av
NOV 14 2017
a `r 77Qmber 6, 2017
Ms. Lyn Hardison
NC Division of Water Resources
Washington Regional Office
943 Washington Square Mall
Washington, NC 27889
Re: Neuse Buffer Authorization — Express Review
Duke Health - Arringdon
Durham, North Carolina
DKH-17010
Dear Ms. Hardison:
On behalf of Duke University Health Systems, Inc., we are applying for a
Neuse River Riparian Buffer Authorization for permanent impacts to Zone l
and Zone 2 of the Neuse Buffer associated with installation of a stormwater
outfall for the Duke Health-Arringdon project. The subject property is located
off Page Road just east of its intersection with Arringdon Park Drive in
Durham, North Carolina. The approximately 10.30 -acre site is owned by
Duke University Health Systems, Inc. and will be developed by JDavis. The
subject property contains a tributary to Brier Creek within the Neuse River
basin. The following items are included in this Neuse Buffer Authorization
application package:
• Signed Agent Authorization
• Fig. 1 - USGS Quad — SE Durham
• Fig. 2 - Durham County Soil Survey (Sheets 36 & 40)
• Fig. 3 - Existing Conditions Map
The John R. McAdams • Fig. 4 - Overall Impact Map
Company, Inc. • Riparian Buffer Authorization Form
• Previously authorized DWR buffer permit (DWR Project #00-1248)
Raleigh 7 Durham, INC . Original Neuse Buffer Determination (NBRRO 99-107)
2905 Meridian Parkway
Durham, North Carolina 27713 • Level Spreader Design Summary
19191361-5000
WETLAND/STREAM MAPPING: All wetland and stream location work
Charlotte,
3436 Toringdon Way was originally conducted by S&EC in 1999. McAdams has the buffer
Suite 110
Charlotte, North Carolina 28277
[phone]
MCAdantsCo.com Designing Tomorrow's Infrastructure & Communities

U MCADAMS
Ms. Lyn Hardison
NC Division of Water Resources — Washington Regional Office
Duke Health-Arringdon Neuse Buffer Authorization Express Review
November 6, 2017
Page 2 of 5
determination that was obtained by S&EC (NBRRO 99-107), but does not
have the USACE JD maps. The USACE Action ID for this project is
200020096. The stream mapping and existing conditions are based off
previously approved site plans and work carried out by S&EC for the Lichtin
Corporation. McAdams concurs with the original Neuse Buffer stream and
wetland determinations.
An onsite investigation for jurisdictional wetland and stream features was
performed by Wendell Overby of S&EC, Inc. on May 5, 1999 for a project
called Page Road/Comstock Road Property, which included the subject
property, as well as adjacent properties to the south and east. The Page
Road/Comstock Road project included wetland and stream buffer permitting
for the construction of Arringdon Park Drive. The NC Division of Water
Resources (DWR; then the Division of Water Quality) field verified the
presence of stream features on the site on May 5, 1999 and documented their
findings in a letter dated June 2, 1999 (NBRRO #99-107). On October 26,
2000, DWR issued a Neuse buffer authorization and a General Water Quality
Certification 3287 for impacts related to the construction of Arringdon Park
Drive (DWQ #00-1248). S&EC also submitted an application to the USACE
on September 27, 2000 for authorization tinder NWP 39 of impacts to 0.112
acres of wetlands associated with the construction of Arrigndon Park Drive
(USAGE Action ID #200020096). See Figures 1-3 and the enclosed
documentation for existing conditions.
EXISTING CONDITIONS: The subject property is vegetated with a mix of
young trees and scrubby vegetation. The site was cleared between 1998 and
2002 (based on Google Earth imagery), but the property was never developed.
Arringdon Park Drive and a residential development southeast of the subject
property were constructed in the early 2000s. A residential development east
of the subject property was constructed within the last year. Land use in the
vicinity is a mix forested areas and residential uses, with some
commercial/industrial uses primarily on the south side of I-40 and northeast of
the project site.
DKH-17010

'J McADaMs
Ms. Lyn Hardison
NC Division of Water Resources — Washington Regional Office
Duke Health-Arringdon Neuse Buffer Authorization Express Review
November 6, 2017
Page 3 of 5
The site drains into an unnamed tributary to Stirrup Iron Creek that runs
southwest along the southeastern property boundary before meeting Stirrup
Iron Creek, which then runs beneath I-40. Stirrup Iron Creek is designated
Class C/NSW and is within the Neuse River basin (HUC 03020201). The
unnamed tributary to Stirrup Iron Creek is the only stream feature on the site.
It is an intermittent stream feature that originates northeast of the property,
between Page Road and NC 147, and flows southwest along the southeast
property boundary before flowing into Stirrup Iron Creek. The unnamed
tributary to Stirrup Iron Creek is depicted on both the USGS quadrangle and
the Durham County Soils Survey map, and is therefore subject to the Neuse
River Riparian Buffer Rules (Figures 1 & 2). The site is not subject to
Durham's Watershed Protection Overlay standards. There are no wetlands
within the project boundary.
PROPOSED PROJECT & IMPACTS: Proposed development on this site
will consist of the construction of a 200,000-sf 5 -story office building, a
116,410-sf 2 -story table top parking deck, and associated driveways,
sidewalks, and supporting utility/stormwater management improvements. In
the post -development condition, the site will be approximately 55 percent
impervious with most of the site discharging into one proposed stormwater
pond located on the south side of the development.
The entire site was designed to minimize impacts to aquatic resources while
utilizing the remaining parcel. There is just one buffer impact area associated
with the outfall from the stormwater pond. The proposed Neuse buffer
impacts consist of 462 sf in Zone I and 244 sf in Zone 2. No stream or
wetland impacts will result from this project. All sedimentation and erosion
control measures will be implemented before construction to minimize runoff.
Typical construction equipment, such as a long-arm track -hoe, front end
loader, and bush hog will be used for the initial clearing.
DKH-17010

2 MCADAMS
Ms. Lyn Hardison
NC Division of Water Resources — Washington Regional Office
Duke Health-Arringdon Neuse Buffer Authorization Express Review
November 6, 2017
Page 4 of 5
TOTAL BUFFER IMPACTS:
Buffer Impact Type
Zone I impact (s)
Zone 2 impact (sf)
Stormwater outfall (perm.)
462
244
TOTAL
462
244
AVOIDANCE and MINIMIZATION: Impacts to jurisdictional streams and
wetlands have been completely avoided, while impacts to stream buffers have
been minimized to the maximum extent practicable. There is a total of 462 sf
of Zone 1 Neuse buffer impacts, and 244 sf of Zone 2 Neuse buffer impacts
associated with the proposed stormwater outfall. There are no proposed
impacts to streams or wetlands. The proposed stormwater outfall is an
allowable use in Zones 1 and 2 according to the Neuse River Riparian Buffer
Rules Table of Uses.
DIFFUSE FLOW: Since the proposed project is located with the Neuse
River Basin, it is subject to the diffuse flow requirements; therefore, a level
spreader will be constructed to diffuse storm flows from the proposed project.
STORMWATER MANAGEMENT: The proposed development is located
within the Neuse River basin and will be subject to the stormwater
management performance standards for development set forth in Durham City
Code Chapter 70, Article X, Sections 70-736 through 70-741 (effective July 6,
2012). The City of Durham is a delegated authority to administer the NCDWR
Neuse River Nutrient Sensitive Waters stormwater rules. Per City of Durham
regulations, stormwater management on this site shall achieve two primary
objectives: (1) peak runoff control, and (2) nutrient loading and total
suspended solids (TSS) removal. A stormwater pond and level spreader will
be employed to meet these requirements.
A detailed Stonnwater Impact Analysis has been submitted to the City of
Durham and contains final hydrologic and hydraulic calculations detailing the
expected stormwater impacts from the proposed development, including final
DKH-17010

NOV 14 ?-;17
Ms. Lyn Hardison
NC Division of Water Resources — Washington Regional Office
Duke Health-Arringdon Neuse Buffer Authorization Express Review
November 6, 2017
Page 5 of 5
design of the proposed stormwater pond and level spreader that will be used to
treat the site. The Level Spreader Design Summary is enclosed.
MITIGATION: All buffer impacts are deemed "Allowable" under the Neuse
River Riparian Buffer Rules — Table of Uses. Therefore, no mitigation is
proposed.
Consideration of this project is greatly appreciated. If you should have any
questions or require additional information, please do not hesitate to contact
me at [phone].
Sincerely,
The John R. McAdams Company, Inc.
� / fes
Kelly Roth
Environmental Consultant
Enclosures

NOV 14 2011
Property Leeal Description:
WADAMS
AGENT AUTHORIZATION FORM
All Blanks to Be Filled In
Parcel IDs:
0757-01-06-3834 & 0757-01-06-5655
Street Address:
5601 & 5703 Arrin don Park Drive, Durham, NC
Property owner name:
Duke University Health System, Inc.
Property owner address:
Duke University Real Estate, 324 Blackwell St., St. 950, Durham,
NC 27701
Phone:
q10LLA(6.057.6
Email:
e{v
Project Information:
Project NamelDescri tion: Duke Health Arrin don
Project Number: DKH-17010
Project Manager: Stan Wingo
U.S. Army Corps of Engineers
Attn: Ross Sullivan
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
Re: Wetlands Related Consulting and Permitting
To Whom It May Concern:
I, the undersigned, registered property owners of the above noted property, do hereby authorize Kevin
Yates and Kelly Roth of The John R. McAdams Company, Inc. to act on my behalf and take all actions
necessary for the processing, issuance, and acceptance of this permit or certification and any and all
standard and special conditions attached. I hereby certify the above information submitted in this
application is true and accurate to the best of my knowledge.
This notification supersedes any previous correspondence concerning the agent for this project.
NOTICE: This authorization, for liability and professional courtesy reasons, is valid only for
government offices to enter the property when accompanied by The John R. McAdams Company,
Raleigh-Durham
2905 Meridian Parkway
Durham, North Carolina 27713
[phone]
Authorized Signature
Charlotte
3436 Toringdon Way, Suite 110
Charlotte, North Carolina 28277
[phone]
Designing Tomorrow's Infrastructure & Communities
McAdamsCo.com

SUBJECT PROPERTY —,
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'41 .fir 1 � •� i \ ay. ICARza/-.+11
i
INTEPCN AN 6
Geographic Society, 1;cubetl.
NOTES:
1. USGS; 7.5 MINUTE, QUAD,'SE DURHAM", NORTH CAROLINA; 2013 NATIONAL GEOGRAPHIC SOCIETY
2. LAT: 35.884117 N, LONG: -78.829717 W
0 1,000 2,000
eet
"" NEUSE BUFFER AUTHORIZATION �mFeet
J FIGURE 1. USGS TOPOGRAPHIC VICINITY MAP t inch=2,000
DUKE HEALTH-ARRINGDON DATE: 10/31/2017
DURHAM, NORTH CAROLINA JOB NO: DKH-17010
DRAWN BY: roth
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INTEPCN AN 6
Geographic Society, 1;cubetl.
NOTES:
1. USGS; 7.5 MINUTE, QUAD,'SE DURHAM", NORTH CAROLINA; 2013 NATIONAL GEOGRAPHIC SOCIETY
2. LAT: 35.884117 N, LONG: -78.829717 W
0 1,000 2,000
eet
"" NEUSE BUFFER AUTHORIZATION �mFeet
J FIGURE 1. USGS TOPOGRAPHIC VICINITY MAP t inch=2,000
DUKE HEALTH-ARRINGDON DATE: 10/31/2017
DURHAM, NORTH CAROLINA JOB NO: DKH-17010
DRAWN BY: roth

r
n Y
k r F
k ,.1
�r SUBJECT P PERTY
1
Ch• Y RMMn
d
f
P f
• M1 � Yw
7
UNNAMED TRIBUTARY TO
STIRRUP IRON CREEK
MfC
C r B,
NOTES:
1. USGS; SOIL SURVEY SHEETS 36 AND 40, DURHAM COUNTY, NORTH CAROLINA
2. LAT: 35.884117 N, LONG: -78.829717 W
0 150 300
NEUSE BUFFER AUTHORIZATION �FBet
FIGURE 2. NRCS SOIL SURVEY 1 inch =300 feet
ill DUKE HEALTH -ARRINGDON DATE: 10/31/2017
DURHAM, NORTH CAROLINA JOB NO: DKH-17010
DRAWN BY: roth
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DWR
Division of Water Resources
State of North Carolina
Department of Environment and Natural Resources
4 2017 Division of Water Resources
15A NCAC 02B .0233 (8)(b), .0243 (8)(b), .0250 (11)(b), .0259 (8)(b), .0267 (11)(c),.0607 (e)(2) - Buffer Authorization
FORM: BASO -2013
A.
Applicant
Riparian Buffer Auth_rization Form
Information
1.
Project Information
1a.
Name of project:
Duke Health - Arringdon
1b.
County:
Durham
1c.
Nearest municipality:
Durham
1d.
Subdivision name:
1e.
Is the project located in any of North Carolina's
twenty coastal counties. If yes, answer 1f below.
El Yes
No
1f.
Is the project located within a NC Division of Coastal
Management Area of Environmental Concern (AEC)?
❑ Yes
®No
2.
Owner Information
2a.
Name on Recorded Deed:
Duke University Health Systems Inc.
2b.
Deed Book and Page No.
DB: 8211 DP: 109
2c. Map Book and Page No.
(include a copy of the recorded
map that indicates when the lot
was created):
2d.
Responsible Party
(for Corporations):
Barry Clyde
2e.
Street address:
2200 West Main St., Suite 650
2f.
City, state, zip:
Durham, NC 27705
2g.
Telephone no.:
919-286-8326
2h.
Fax no.:
2i.
Email address:
[e-mail]
3.
Applicant Information (if different from owner)
3a.
Applicant is:
❑ Agent ® Other, specify:
31b.
Name:
Barry Clyde
3c.
Business name
(if applicable):
Duke University Heath Systems, Inc.
3d.
Street address:
2200 West Main St., Suite 650.
3e.
City, state, zip:
Durham, NC 27705
3f.
Telephone no.:
919-286-8326
3g.
Fax no.:
3h.
Email address:
[e-mail]
4.
Agent/Consultant Information (if applicable)
4a.
Name:
Kelly Roth
4b.
Business name
(if applicable):
McAdams Co.
4c.
Street address:
2905 Meridian Parkway
4d.
City, state, zip:
Durham, NC 27713
4e.
Telephone no.:
919-361-5000
4f.
Fax no.:
919-361-2269
4g.
Email address:
FORM: BA 10-2013 Page 1 of 9

B.
Project Information and Prior Project History
1.
Property Identification
1a.
Property identification no. (tax PIN or parcel ID):
075701063834 and 075701065655
1b.
Site coordinates (in decimal degrees):
Latitude: 35.884117 Longitude: -78.829717
1c.
Property size:
10.30 acres
2.
Surface Waters
2a.
Name of nearest body of water to proposed project:
Stirrup Iron Creek
2b.
Water Quality Classification of nearest receiving
water:
C; NSW
2c.
River basin:
Neuse (Upper Crabtree Creek; HUC 030202010801)
FORM: BA 10-2013 Page 2 of 9

B. Project Information and Prior Project History
3.
Project Description
3a.
Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of
this application:
The subject property is located off Page Road just east of its intersection with Arringdon Park Drive in Durham,
North Carolina. The approximately 10.30 -acres is owned by Duke University Health Systems, Inc. and will be
developed by JDavis.
The subject property is vegetated with a mix of young trees and scrubby vegetation. The site was cleared
between 1998 and 2002 (based on Google Earth imagery), but the property was never developed. Arringdon
Park Drive and a residential development southeast of the subject property were constructed in the early
2000s. A residential development east of the subject property was constructed within the last year. Land use in
the vicinity is a mix forested areas and residential uses, with some commercial/industrial uses primarily on the
south side of 1-40 and northeast of the project site.
The site drains into an unnamed tributary to Stirrup Iron Creek that runs southwest along the southeastern
property boundary before meeting Stirrup Iron Creek, which then runs beneath 1-40. Stirrup Iron Creek is
designated Class C/NSW and is within the Neuse River basin (HUC 03020201). The unnamed tributary to
Stirrup Iron Creek is the only stream feature on the site. It is an intermittent stream feature that originates
northeast of the property, between Page Road and NC 147, and flows southwest along the southeast property
boundary before flowing into Stirrup Iron Creek. The unnamed tributary to Stirrup Iron Creek is depicted on
both the USGS quadrangle and the Durham County Soils Survey map, and is therefore subject to the Neuse
River Riparian Buffer Rules (Figures 1 & 2). The site is not subject to Durham's Watershed Protection Overlay
standards. There are no wetlands within the project boundary.
All wetland and stream location work was originally conducted by S&EC in 1999. McAdams has the buffer
determination that was obtained by S&EC (NBRRO 99-107), but does not have the USACE JD maps. The
USACE Action ID for this project is 200020096. The stream mapping and existing conditions are based off
previously approved site plans and work carried out by S&EC for the Lichtin Corporation. McAdams concurs
with the original Neuse Buffer stream and wetland determinations.
An onsite investigation for jurisdictional wetland and stream features was performed by Wendell Overby of
S&EC, Inc. on May 5, 1999 for a project called Page Road/Comstock Road Property, which included the
subject property, as well as adjacent properties to the south and east. The Page Road/Comstock Road project
included wetland and stream buffer permitting for the construction of Arringdon Park Drive. The NC Division of
Water Resources (DWR; then the Division of Water Quality) field verified the presence of stream features on
the site on May 5, 1999 and documented their findings in a letter dated June 2, 1999 (NBRRO #99-107). On
October 26, 2000, DWR issued a Neuse buffer authorization and a General Water Quality Certification 3287 for
impacts related to the construction of Arringdon Park Drive (DWQ #00-1248). S&EC also submitted an
application to the USACE on September 27, 2000 for authorization under NW P 39 of impacts to 0.112 acres of
wetlands associated with the construction of Arrigndon Park Drive (USACE Action ID #200020096). See
Figures 1-3 and the enclosed documentation for existing conditions.
3b.
Attach an 8 %: x 11 excerpt from the most recent version of the USGS topographic map indicating the location
of the site. See Figure 1.
3c.
Attach an 8 '/2 x 11 excerpt from the most recent version of the published County NRCS Soil Survey Map
depicting the project site. See Figure 2.
3d.
List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
889 If
3e.
Explain the purpose of the proposed project:
The proposed project will provide commercial/medical uses to southeast Durham County.
FORM: SSGP3080 8-13 Page 3 of 9

B. Project Information and Prior Project History
3f.
Describe the overall project in detail, including the type of equipment to be used:
Proposed development on this site will consist of the construction of a 200,000-sf 5 -story office building, a
116,410-sf 2 -story table top parking deck, and associated driveways, sidewalks, and supporting
utility/stormwater management improvements. In the post -development condition, the site will be approximately
55 percent impervious with most of the site discharging into one proposed stormwater pond located on the
south side of the development.
The entire site was designed to minimize impacts to aquatic resources while utilizing the remaining parcel.
There is just one buffer impact area associated with the outfall from the stormwater pond. The proposed Neuse
buffer impacts consist of 462 sf in Zone 1 and 244 sf in Zone 2. No stream or wetland impacts will result from
this project. All sedimentation and erosion control measures will be implemented before construction to
minimize runoff. Typical construction equipment, such as a long-arm track -hoe, front end loader, and bush hog
will be used for the initial clearing.
4.
Jurisdictional Determinations
4a.
Have jurisdictional wetland or stream determinations by the
® Yes ❑ No ❑ Unknown
Corps or State been requested or obtained for this property/
Comments:
project (including all prior phases) in the past?
41b.
If yes, who delineated the jurisdictional areas?
Agency/ Consultant Company: S&EC, Inc.
Name (if known): Wendell Overby
Other:
4c.
If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach
documentation.
-DWR issued buffer determination letter on June 2, 1999 for the subject property and neighboring properties
(NBRRO 99 107; no expiration).
5.
Project History
5a.
Have permits or certifications been requested or obtained for
® Yes ❑ No ❑ Unknown
this project (including all prior phases) in the past?
5b.
If yes, explain and detail according to "help file" instructions.
-S&EC requested authorization from the USACE under NWP 39 for impacts to 0.112 acres of wetlands
associated with the construction of Arrigndon Drive (USACE Action ID #200020096).
-DWR (then DWQ) issued a Neuse buffer authorization and a General Water Quality Certification 3287 for
impacts related to the construction of Arringdon Drive on October 26, 2000 (DWQ #00-1248).
6.
Future Project Plans
6a.
Is this a phased project? ❑ Yes ®No
6b.
If yes, explain.
FORM: SSGP3080 8-13 Page 4 of 9

C. Proposed Impacts Inventory
1. Buffer Impacts
1a. Project is in which protected
® Neuse
❑ Tar -Pamlico ❑ Catawba
basin?
❑ Randleman
❑ Jordan ❑ Goose Creek
1b. Individually list all buffer impacts below. If any impacts
require mitigation, then you MUST fill out Section D of
this form.
Buffer impact
Reason for
Type of impact
Stream name
Buffer Zone 1 Zone 2
number—
impact
(exempt, allowable,
mitigation impact impact
Permanent (P)
allowable w/
required? (sq ft) (sq ft)
or Temporary
mitigation)
T
B1 ® P ❑ T
Riprap outfall for
Allowable
UT to Stirrup
❑ Yes ® No 462 244
stormwater pond
Iron Creek
B2 ❑ P ❑ T
❑ Yes ❑ No
B3 0 0
❑Yes El No
B4 ❑ P ❑ T
❑ Yes ❑ No
B5 ❑ P ❑ T
I ❑ Yes ❑ No
B6 ❑ P ❑ T
1 ❑ Yes ❑ No
Total buffer impacts 462 244
1c. Comments:
FORM: BA 10-2013 Page 5 of 9

C. Impact Justification and Mitigation, continued
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Impacts to jurisdictional streams and wetlands have been completely avoided, while impacts to stream buffers
have been minimized to the maximum extent practicable. There is a total of 462 sf of Zone 1 Neuse buffer
impacts, and 244 sf of Zone 2 Neuse buffer impacts associated with the proposed stormwater outfall. There are
no proposed impacts to streams or wetlands. The proposed stormwater outfall is an allowable use in Zones 1
and 2 according to the Neuse River Riparian Buffer Rules Table of Uses.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction
techniques.
All proper sedimentation and erosion control measures will be implemented, and there is a stormwater
management facility designed to treat and minimize runoff. The implementation of a level spreader will improve
downstream bank stabilization during high-flow storm events.
The proposed development is located within the Neuse River basin and will be subject to the stormwater
management performance standards for development set forth in Durham City Code Chapter 70, Article X,
Sections 70-736 through 70-741 (effective July 6, 2012). The City of Durham is a delegated authority to
administer the NCDWR Neuse River Nutrient Sensitive Waters stormwater rules. Per City of Durham
regulations, stormwater management on this site shall achieve two primary objectives: (1) peak runoff control,
and (2) nutrient loading and total suspended solids (TSS) removal. A stormwater pond and level spreader will
be employed to meet these requirements. A detailed Stormwater Impact Analysis has been submitted to the
City of Durham and contains final hydrologic and hydraulic calculations detailing the expected stormwater
impacts from the proposed development, including final design of the proposed stormwater pond and level
spreader that will be used to treat the site. The Level Spreader Design Summary is enclosed.
Proper sedimentation and erosion control methods will be utilized during all phases of construction and
installation, as described in the Erosion Control Plan sheets to be reviewed and approved by the NC Division of
Land Quality and/or the Durham County Stormwater and Erosion Control Division. All work will take place
during dry conditions and can be facilitated from high, non -jurisdictional, stable ground adjacent to the
shoreline. The contractor shall install silt fence, inlet protection, sediment traps, diversion ditches, tree
protection, and other measures as shown on the erosion control plans, clearing only as necessary to install
these devices. All erosion and sediment control measures will be checked for stability and operation following
every runoff producing rainfall, but in no case less than once every week. Any needed repairs will be made
immediately to maintain all measures designed. An erosion control inspections report is required and will be
kept by the owner's representative.
All slopes shall be graded no steeper than the angle that can be retained by vegetative cover or other adequate
erosion control devices or structures. No material for construction will be placed in wetlands, streams, or Neuse
Buffers at any time. Excavation will be limited to the area necessary for site preparation; all excavated material
will be placed and retained on high ground above the flood pool elevation. All excavated material will be placed
landward of the normal pool elevation contour on high ground and confined by adequate dikes or other
retaining structures to prevent erosion and sedimentation into adjacent waters, wetlands, or Neuse Buffers.
FORM: SSGP3080 8-13 Page 6 of 9

C. Impact Justification and Mitigation, continued
2. Buffer Mitigation
2a. Will the project result in an impact within a protected riparian buffer that requires buffer
mitigation?
❑Yes ® No
2b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation and
calculate the amount of mitigation required in the table below.
Zone Reason for impact Total impact Multiplier
(square feet
Required mitigation
(square feet
Zone 1 3 (2 for Catawba)
Zone 2 1.5
Total buffer mitigation required:
2c. If buffer mitigation is required, is payment to a
mitigation bank or INC EEP proposed?
❑ Yes ❑ No
2d. If yes, attach the acceptance letter from the mitigation bank or NC EEP.
2e. If no, then discuss what type of mitigation is proposed.
2f. Comments:
FORM: SSGP3080 8-13 Page 7 of 9

E. Diffuse Flow Plan
All buffer impacts and high ground impacts require diffuse flow or other form of
® Diffuse flow
stormwater treatment. Include a plan that fully documents how diffuse flow will be
E] Other BMP
maintained. If a Level Spreader is proposed, attach a Level Spreader Supplement Form.
la.
If due to site constraints, a BMP other than a level spreader is proposed, please provide a
❑ Yes ® No
plan for stormwater treatment as outlined in Chapter 8 of the NC Stormwater BMP
of public (federal/state) land?
Manual and attach a BMP Supplement Form.
1b.
The proposed project is located within the Neuse watershed and will be subject to the
❑ Yes ❑ No
Neuse Riparian Buffer Rules. One stormwater management facility with a level spreader
environmental document pursuant to the requirements of the National or State (North
is proposed on this site. The proposed stormwater management facility is designed in
accordance with the N.C. Stormwater Design Manual (NCDEQ). The Level Spreader
Design Summary submitted to the City of Durham is attached.
If you answered "yes" to the above, has the document been finalized by the State
F.
Supplementary Information
by First Class Mail via the US Postal Service:
1.
Environmental Documentation
OR NC DWR, Transportation Permitting Unit
la.
Does the project involve an expenditure of public (federal/state/local) funds or the use
❑ Yes ® No
Raleigh, NC 27604
of public (federal/state) land?
OR For all other projects sent by delivery service
1b.
If you answered "yes" to the above, does the project require preparation of an
❑ Yes ❑ No
environmental document pursuant to the requirements of the National or State (North
Carolina) Environmental Policy Act (NEPA/SEPA)?
1c.
If you answered "yes" to the above, has the document been finalized by the State
❑ Yes ❑ No
Clearing House? (If so, attach a copy of the NEPA or SEPA final approval letter.)
Comments:
2.
Violations
2a.
Is the site in violation of DWR Wetland Rules (15A NCAC 02H .0500), Isolated Wetland
❑ Yes ® No
Rules (15A NCAC 02H .1300), DWR Surface Water or Wetland Standards, or Riparian
Buffer Rules (15A NCAC 02B.0200)?
2b.
Is this an after -the -fact permit application?
❑ Yes ® No
2c.
If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
Kelly Roth -, / 11/06/2017
Applicant/Agent's Printed Name ppliesgen's Si nature Date
(Agent's signature is valid only If a uthorintlon lager from the applicant Is provided.)
Send 3 complete sets of this form and accompanying documents to the following:
For government transportation projects sent
For government transportation projects sent by
by First Class Mail via the US Postal Service:
delivery service (UPS, FedEx, etc.):
NC DWR, Transportation Permitting Unit
OR NC DWR, Transportation Permitting Unit
1617 Mail Service Center
512 N. Salisbury Street
Raleigh, NC 27699 - 1617
Raleigh, NC 27604
For all otter projects sent by First Class Mail
OR For all other projects sent by delivery service
via the US Postal Service
(UPS, FedEx, etc.):
FORM: BA 10-2013 Page 8 of 9

Karen Higgins Karen Higgins
NCDWR-401 & Buffer Permitting Branch NCDWR-401 & Buffer Permitting Branch
1617 Mail Service Center 512 N. Salisbury Street
Raleigh, NC 27699 - 1617 Raleigh, NC 27604
FORM: SSGP3080 8-13 Page 9 of 9

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
Adam Lichtin
Lichtin Corporation
3110 Edwards Mill Road
Raleigh, NC, 27612
APPROVAL of Neuse River Buffer Rules
Dear Mr. Lichtin:
;I
NOV 14 2011
E N R
October 26, 2000
D W Q# 00-1248
Durham County
You have our approval to construct a road crossing over Stirrup Iron Creek at the Arringdon project in
Durham County, as described in your application received by the Division of Water Quality on September 27,
2000. After reviewing your application, we have determined that this fill is covered by General Water Quality
Certification Number 3287. This approval is valid for the Neuse River Buffer Rules (15A NCAC 2B .0233). In
addition, you should get any other federal, state or local permits before you go ahead with your project including
(but not limited to) Sediment and Erosion Control, Non -Discharge and Water Supply Watershed regulations.
This approval is only valid for the purpose and design that you described in your application. If you
change your project, you must notify us and you may be required to send us a new application for a new approval
or certification. If the property is sold, the new owner must be given a copy of the Certification and approval letter
and is thereby responsible for complying with all conditions. If total wetland fills for this project (now or in the
future) exceed one acre, compensatory mitigation may be required as described in 15A NCAC 214.0506 (h).
If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing.
You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition
conforming to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, P.O.
Box 27447, Raleigh, N.C. 27611-7447. This certification and its conditions are final and binding unless you ask
for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act.
If you have any questions, please telephone John Domey at 919-733-9646.
Sincerely,
'
Steven'
Non -Discharge Branch 1621 Mail Service Center • Raleigh, North Carolina 27699-1621
Telephone [phone] FAX H 733-9959
An Equal Opportunity Affirmative Action Employer 50% recyclealtn% post consumer paper

cc: Corps of Engineers Raleigh Field Office
Raleigh DWQ Regional Office
Central Files
File Copy
Kevin Martin, 11010 Raven Ridge Road, Raleigh, NC, 27614
001248

No //0/ NOt/a/ f:j�� eAICL.oSEp
Soil & Environmental Consultants, Inc.
11010 Raven Ridge Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
Web Page: www.SandEC.com
September 27, 2000
S&EC, Inc. Project #99-4509
US Army Corps of Engineers -Regulatory NCDENR-DWQ 001248
Attn: Mr. Todd Tugwell Attn: Mr. John Dorney
6508 Falls of Neuse Road, Suite 120 4401 Reedy Creek Rd.
Raleigh, NC 27615 Raleigh, NC 27607
Dear Mr. Tugwell and Mr. Domey:
The purpose of this letter is to notify the US Army Corps of Engineers (USACE) of our client's request to
use Nationwide Permit 39 for the proposed mixed-use project known as Arringdon. Additionally, we
request confirmation of compliance with the Neuse River buffer regulations from the NC Division of Water
Quality (DWQ). The property is located east of Page Road (SR 1973) and north of Interstate 40 along the
Durham and Wake County line. The site is shown on the attached plans and USGS Topo Quad vicinity
map. Impacts totaling 0.112 acres of vegetated wetland and 0 linear feet of Waters are proposed (see
Impact map). Proposed impacts will be in the form of lot fills. A proposed road crossing over
jurisdictional 'Waters' wil I occur in the form of an arched culvert resulting in no stream impact (see impact
map). •Because proposed Impacts are below NW 39 DWQ wetland impact notification thresholds (less
than 1/3 acres and 150 linear feet) this application does not require written concurrence from the
DWQ for use of the 401 certification. The DWQ Is being notified of the proposed impacts for
Arringdon due to Neuse River buffer impacts for 1 road crossing (see attached). Stormwater
treatment should not be required since a 401 is not required.
Surface waters subject to the Neuse River buffer regulations have been confirmed by the DWQ (NBRRO
99 107 -see attached letter). Proposed impacts to the riparian buffer are one perpendicular road crossing
with 140 feet clearing limits (see attached). The proposed impacts are allowed under the current Neuse
River buffer regulations without requiring a variance from the Environmental Management Commission
and without buffer mitigation.
S&EC believes no further mitigation should be required for the Arringdon project based on the amount of
impacts proposed. Minimization and avoidance has been demonstrated by the location of structures
relative to wetlands and the use of arched culverts for a proposed stream crossing (see attached). If for
some reason mitigation is required by the USACE, our client proposes payment into the North Carolina
Wetland Restoration Fund.
Included are: (1) a completed Pre -Construction Notification application, (2) Agent Authorization Form, (3)
USGS Site Vicinity Map, (4) Site Plans, (5) DWQ Neuse River buffer letter, and (6) Wetland Delineation
Forms.
Please call if you have questions or require further information. If you intend to perform site visits please
call and we will arrange for someone to accompany you.
Sincerely,
l Ll
Wendel I Overby
wo RL $Ep 2 72000
J
Wetland Delineation/Pennitting/Mitigation Soil/Site Evaluations On -Site S
Neuse Basin and Watershed Buffer Evaluations Groundwater
Western Branch Offices: [phone] • [phone] - [phone]

DWQ 1D: 0o 124 8
Corps Action ID: 200020096
Nationwide Permit Requested (Provide Nationwide Permit #): 39
Pre -Construction Notification Application
For Nationwide Permits that Require:
1) Notification to the Corps of Engineers
2) Application for Section 401 Certification
3) Coordination with the NC Division of Coastal Management
Send the original and (1) copy of this completed form to the appropriate field office of
the Corps of Engineers (see agency addresses sheet). Seven (7) copies should be sent to
the NC Division of Environmental Management (see agency addresses sheet). PLEASE
PRINT.
9
Owner's Name: Lichtin Corporation (Adam Lichtin)
Mailing Address: 3110 Edwards Mill Road
Subdivision Name: Arringdon
City: Raleigh State: NC Zip Code: 27612
Project location address, including subdivision name (if different from mailing address
above): North of I-40, West of 540, East of Page Rd in Durham (SR 1973), south of
Comstock Rd (SR 1972).
3) Telephone Number (Home):
(Work): 919.783.6000
4) If applicable, agent's name or responsible corporate official, address, phone
number:
Soil and Environmental Consultants, Inc Phone: [phone]
11010 Raven Ridge Road
Raleigh, NC 27614
Fax: [phone]
5. Location of work (provide a map, preferable a copy of USGS topographic map or
aerial photograph with scale):
County: Durham Nearest town or city: Durham

Specific Location (include road numbers, landmarks, etc.):
see above and enclosed USGS vicinity map
6. Impacted or nearest stream/river: Stirrup Iron
7a.
River Basin:
Is project located near water classified as trout, tidal saltwater (SA), high quality
waters (HQW), outstandiresource waters (ORW), water supply (WS -I or WS -
II)? YES ❑ NO a If yes, explain:
7b. If the project is located within a North Carolina division of coastal management
area of environmental concern (AEC)? YES ❑ NO
7c.
If the project is located within a coastal county (see page 7 for list of coastal
counties), what is the land use plan (LUP) designation?
8a. Have an Section 404 permits been previously requested for use on this property?
YES 17 NO ® If yes, provide Action ID number of pervious permit and
any additional information (including photocopy of 401 certification).
Are additional permit requests expected for this property in the future?
YES ❑ NO ® If yes, describe anticipated work:
9a. Estimated total number of acres in tract of land
96.15
9b. Estimated total number or acres of wetlands located on project site: 0.38

10a. Number of acres of wetlands impacted by the proposed project by:
Filling: 0.112 Excavation:
Flooding: Other:
Drainage: Total acres to be impacted: 0 112
10b. (1) Stream channel to be impacted by the proposed project (if relocated,
provide distance both before and after relocation):
Length before: n/a
After: n/a
Width Before (based on normal high water contours): n/a
Width After: n/a
Average depth before: n/a
After: n/a
(2) Stream channel impacts will result from: (check all that apply)
Open channel relocation: ❑ Placement of pipe in channel: ❑
Channel Excavation: ❑ Construction of a Dam/Flooding: ❑
Other: no channel impacts proposed
11. If construction of a pond is proposed, what is the size of the watershed draining to
the pond? no pond proposed
What is the expected pond surface area?
12. Description of proposed work including discussion of type of mechanical
equipment to be used (attach plans 81/2" x 11" drawings only):
Construction of mixed-use project. Heavy machinery will be used for grading and
of areas shown on site plan.

13. Purpose of proposed work: Construction of commercial and mixed use facilities
14. State reasons why it is believed that this activity must be carried out in wetlands
(include any measures taken to minimize wetland impacts): No channel impacts
other than <150' of buffer clearing for 1 road xing. Crossing will involve arched
culverts that span creek. Avoidance of largest wetland area'D'.
15. You are required to contact the U.S. Fish and Wildlife Service (USFWS) and/or
National Marine Fisheries Service (NMFS) (see agency addresses sheet) regarding
the presence of any federally listed or proposed for listing endangered or
threatened species or critical habitat in the permit area that may be affected by the
proposed project. Date contacted: (attach responses from these agencies).
To be done by USACE
16. You are required to contact the state historic preservation officer (SHPO) (see
agency address sheet) regarding the presence of historic properties in the permit
area which may be affected by the proposed project. Date contacted: To be done
by USACE
17. Does the project involve an expenditure of public funds or the use of public (state)
land?
YES ❑ NO ® If no, go to 18.
a. If yes, does the project require preparation of an environmental document
pursuant to the requirements of the North Carolina Environmental Policy
Act?
YES ❑ NO ❑
b. If yes, has the document been reviewed through the North Carolina
Department of Administration State Clearinghouse?
YES ❑ NO ❑
If answers to 17b is YES, then submit appropriate documentation from the state
clearinghouse to division of environmental management regarding compliance
with the North Carolina Environmental Policy Act.

Questions regarding the State Clearinghouse review process should be directed to
Ms. Chrys Baggett, Director State Clearinghouse, North Carolina Department of
Administration, 116 West Jones Street, Raleigh, North Carolina 27603-8003,
telephone [phone].
18. The following items should be included with this application if proposed activity
involves the discharge of excavated or fill material into wetlands:
a. Wetland delineation map showing all wetlands, streams, lakes and ponds on
the property (for Nationwide Permit numbers 14, 18, 21, 26, 29 and 38). All
streams (intermittent and permanent) on the property must be shown on the
map. Map scales should be 1 inch equals 50 feet or 1 inch equals 100 feet or
their equivalent.
b. If available, representative photograph of wetlands to be impacted by project.
C. If delineation was performed by a consultant, include all data sheets relevant
to the placement of the delineation line.
d. Attach a copy of the stormwater management plan, if required.
e. What is land used of surrounding property? Commercial, residential, and
farmland
If applicable, what is proposed method of sewage disposal? Municipal
g. Signed and dated agent authorization letter, if applicable.
NOTE: Wetlands or Waters of the U.S. may not be impacted prior to:
1. Issuance of a Section 404 Corps of Engineers Permit,
2. Either the issuance or waiver of a 401 Division of Environmental
Management (Water Quality) certification, and
3. (in the twenty coastal counties only) A letter from the North Carolina
Division of Coastal Management stating the proposed activity is consistent
/
with
the No C olina Coastal Management program.
UV y1 z/�
Owner's/Agent's Sig a re Date
(Agent's signature valid only if Agent Authorization Letter from the owner is provided
(18 g•))

09/'21/2000 09:38 9198525534 BBM ASSOCIATES INC PAGE 02
Sep 19 00 11:48a Lichtin Corporation 919-783-7220 P.2
09/15/2000 ' BG:47 9198515534 BEM A550CIATES rNC PAGE 02
89/12/2808 08:47 9198469467 6 EC PAGE 02
., 1 11010 Rlwa Riate Rola adllea. 1ter6 (}ue8ns 1')61 PMiax 011911/6!400 •'!4i (919)sw 47
- w�� ++Fr.FMdiCM�n
ACENT AU MORTZAN FORM
All §1Vjg rh @RFI) " 1be Qufff TdjRd iXW
Name: l/�tf�lrN ('-r,20J4Ar/0..t/
Addkessi. 494L eO ACS ,9 .A/C Z �c
Phone: 919'793-6doa
f'toj4ceNum/0escriptiare kkea),QON 41horo tgg 0Eutty/1m£
Dat *rCMO'zR 2e/ WO
The �?eI%rtment of the Army
U.S. rniy Corps of Engl[ieet's; Wilittington Distrkt
P.O.•flox
Wih4:on, NC 28402
Afti
Field Office: Fw
Re: �/etlands Related Consulting slid F*Mtttag.
To 4ho111 It May Cottcom:
1, m� Curren[ pka towner, hereby.desfpAie and aut iorize $oil & &lvironmenplCansultetlts, ltw:
pact tw mg behalf as soy agent in the procesOng of permit applidtiSna, to-Ffrobh upon request .
sut$ rk itetltal information in support of applkations, tk from th s dory forward. 71+e day 4 1'
i
Thisjnotification supersedes any previous eorallpondence c9lYr v'dAg the agent for this ptojeCt
R041C* 3Ws sudwsiaatluw for gab(* and pro4tesiorraf coarW 11001 s.:ii VO4 nnlY for i
60vfradiea6 oftkgb M euhctheeperty when acwatp�niad by S)k8� tsalF. You aherfd <a[I fikT
m aj.rangs a the meeting prior to vfsikiag the site.
sf�N�7N�i�"/•vG�t(/
`Priv Proper Owners Name I'ssipature
ee: Mr: John Darnay cc: Mr. Kevin Markin
I NCDEH & NR - DWQ, Water Quality Planning SMl * 8nvironwark el Con+ultmts, Inc.
4401 Ready Creek Rod
Ra"K NC 270W 'M"u1m
tta0ind'Ge1Naalfont"eeelatnl/IM an "ke u4eWx)o,r owsim "f Aorsta+ 6avkWI Mel APe mnw/AWift
� ttwn BIEla 1M6 WNmMO Yatler Bvsfmdent GnauM�N.Me Hyt �1Y 1>�t� sP•�K+
i Clailone Oake: (701)SIa•S9EE' WE*%s Oo)te (12f)312iM
� i

WE 1 -1 -AND IMPACT `A'
SCALE, 1`50'
ARRINGDON DEVELOPMEN', PAGE ROAD, DURHAM, NORTH CAROLINA
BBM ASSOCIATES, INC. 919-852- 5540

o!r
/
II
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1
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AD IMPACTED ARCHED
CROSSING
AREA
B
SCALES 1"=5C'
ARR''NGDOh DEV=LOPMENT,
PAGE ROAD, DLRHAM, NORTH
CAROLINA
BBM ASSOCIATES, INC.
9"9-852-5540

WETLAND IMPACT `C'
SCALE: 1"=50'
ARRINGDON DFVE._OPMENT, PAGE ROAD, DURHAM, NORTH CAROLINA
59M ASSOCIATES, INC. 919 852 -5540

M. -I -LAND IMPACT `D'
SCALE: 1"=50'
ARRINGDON DEVELOPMENT, PAGE ROAD, DURHAM, NORTH CAROLINA
I3BM ASSOCIATES, INC. 919--852--5540
-
COM S TOCK-'----- _
ROAD
- DISTURBED AREA -0.0/ ACRES
OR 3,169 SF
TOTAL AREA=0.2C4 ACRES `-.-
OR 8,886 SIF
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M. -I -LAND IMPACT `D'
SCALE: 1"=50'
ARRINGDON DEVELOPMENT, PAGE ROAD, DURHAM, NORTH CAROLINA
I3BM ASSOCIATES, INC. 919--852--5540

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.s
JAMES B. HUNTJRI"'5
GOVERNOR t
II,ICDEVM
Mr. Wendell Overby
S&EC, Inc.
244 West Millbrook Road
Raleigh, NC 27609
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
RALEIGH REGIONAL OFFICE
DIVISION OF WATER QUALITY
May 28, 1999
= ` Subject: Neuse River Basin
Riparian Buffer Rules
A
NBRRO 99 107
Page Road / Comstock Road Property
Wake County
Dear Mr. Overby:
On May 5, 1999, I conducted a site visit of the stream features involved in the above
referenced project. It was determined as a result of the site visit that the water body
channels present on the property were intermittent streams and therefore subject to the
Neuse River Basin: Nutrient Sensitive Waters Management Strategy; Protection and
Maintenance of Existing Riparian Areas, Administrative Code T15A:02B.0233 (NCAC
0233). The intermittent channels and the approximate placement of the buffer area is
defined on the attached plan. The entire length of channel A is shown protected. The
i starting point of the Neuse Buffer on the remaining channels are located as follows flag 947
on channel B, flag #32 on channel C, and flag #200 on channel D.
�� This office has assigned the reference number of NBRRO 99 107 to this project.
...... Thank you for your attention to this matter and if this Office can be of any assistance or if
`:;; IFi . you have any additional questions concerning this letter, please do not hesitate to contact
me at 571-4700 ext. 245.
Sincer ly,
(/ L
,h
Charles Brown
Environmental Specialist
cc: John Dorney, DWQ
\neusbuf. let\nbr99107.let
3800 BARRETT DRIVE, SUITE 101, RALEIGH, NORTH CAROLINA 27800
L?� PHONE 9I9-971-4700 FA%019.971-4719
AN EQUAL OPPORTUNITY/ AFFIRMATIVE ACTION EMPLOYER - 90% RECYCLED/10% POST-CON..MER PAPER

Delineation Performed by: Soil & Environmental Consultants, Inc.
v L71L Ars D 244 West Millbrook Road 231 16th Avenue NE
Raleigh, NC 27609 Hickory, NC 28601
w"a F,,, 95 Phone: [phone] Phone: [phone]
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual) /•�q
Project/Site: A&¢ RP Date:
Applicant/Owner: DRUUua2 Fguc County: Pu"Inn
Investigator:
W wWoej State: NC
Do normal circumstances exist on the site?
Is the site significantly disturbed
(A typical situation)?
Is the area a potential problem area?
(If needed, explain on reverse.)
VEGETATION
a No Community ID:
yes do Transit ID:
yes ® Plot ID: _
r I Mminant YlanC JDeI:ICS
l�nminan Pt last
Stratum Indicator
N ooC
�— FAC
Percent of dominant species that are 06L, FACW or FAC (excluding FAC-):
Remarks:
HYDROLOGY
Recorded Data (describe in remarks)
_ Stream Lake or Tide Gauge
_ Aerial Photographs
_ Other
y( No Recorded Data Available
Field Observations:
Depth of Surface Water: 2 - O (in.)
Depth to Free Water in Pit: 0-12. (in.)
Depth to Saturated Soil:
Remarks:
0 - I? (in.)
i3
We�Hydrology Indicators:
pricey Indicators:
X Inundated
X Saturated in Upper 12 Inches
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Srcondau Indicators: (2 or more required)
X Oxidized Root Channels in
Upper 12 Inches
Water -Stained Leaves
Local Soil Survey Data
14 FAC Neutral Test
Other (explain in remarks)
WLdala.frm
Stratu
1, W..s�vs 6t ww7luANA
T
FACO/
9.
2. QV LV•. �1t' -✓i
-V
FAW�
10. hltWlYY'[A
3.NYSt/t sjLy/q-7it11
T
FAL—
11.rtUryNoinMq
4, Vi-rus 901,, 04t!µ
y
FAC
12.
5.Ji1m04rn9aR STY.
-r
FAC4
13.
6.ruc2 S`retrru...
N
NI
14.
7.yIMINWM
15.
8. ACM aveav�
16.
Stratum Indicator
N ooC
�— FAC
Percent of dominant species that are 06L, FACW or FAC (excluding FAC-):
Remarks:
HYDROLOGY
Recorded Data (describe in remarks)
_ Stream Lake or Tide Gauge
_ Aerial Photographs
_ Other
y( No Recorded Data Available
Field Observations:
Depth of Surface Water: 2 - O (in.)
Depth to Free Water in Pit: 0-12. (in.)
Depth to Saturated Soil:
Remarks:
0 - I? (in.)
i3
We�Hydrology Indicators:
pricey Indicators:
X Inundated
X Saturated in Upper 12 Inches
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Srcondau Indicators: (2 or more required)
X Oxidized Root Channels in
Upper 12 Inches
Water -Stained Leaves
Local Soil Survey Data
14 FAC Neutral Test
Other (explain in remarks)
WLdala.frm

SOILS
Map Unit Name veR4Y
(Series and Phase): WeNM�k�L Drainage Class: r'
Field Observations
Taxonomy (Subgroup): F"vpquCNTlc N"AVA;Ff5 Confirm Mapped Type? IS No
.. _ .. iu _.: u.
F.. '
_ Histosol _ Concretions
_ Histic Epipedon _ High Organic Content in Surface Layer in Sandy Soil
Sulfidic Odor _ Organic Streaking in Sandy Soils
Aquic Moisture Regime ✓ Listed on Local Hydric Soils List
✓ Reducing Conditions ✓ Listed on National Hydric Soils List
_,�- Gleyed or Low-Chroma Colors _ Other (explain in remarks)
Remarks:
Wetland Determination
(circle yes or no)
Hydrophytic Vegetation Present? YV No
Wetland Hydrology Present? � No
Hydric Soils Present? No
is This Sampling Point Within a Wetland? 4!!!F No
Remarks:
WLdalafrm

Delineation Performed by: Soil & Environmental Consultants, Inc.
244 West Millbrook Road 231 16th Avenue NF,
UPLANP Raleigh, NC 27609 Hickory, NC 28601
Phone: [phone] Phone: (7D4) 322-6700
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Date: s/r/q9 -----
Project/Site: PA"Coun : oueµ
Applicant/Owner: b¢ uczn F+atK
County: �
Nc
Investigator:
w u eY1BY State:
Do normal circumstances exist on the site?
Is the site significantly disturbed
(A typical situation)?
Is the area a potential problem area?
(If needed, explain on reverse.)
VEGETATION
Doninant Plant Species
1. plmi)S -rAc DA _
2. L4ILICOGNORCN
3. Tu1.IP&04
4. MCA RuPsl2vr
5. lAR(1IN YS (tRO ,MAYA
6. clalus rwt,nA
7. LuNp.1�9A .3"wICA
8. 1Lc'IL oPA(A
aq No Community ID:
Yes 0 Transit ID:
Yes tP Plot ID: 11''400
Stratum
Indy
-minwItPlantSoecies
r
rhG
9. FAcuS GAANDIrouA
T
FSK
10.
11.
T
FAc
12.
T
MAc
13.
z
Fkc a
14.
V,
FAc-
15. —
g
FAc-
16.
tratum Indic;atQ
r F;'�-­
Percent of dominant species that are OBL, FACW or FAC (excluding FAC-):
Remarks:
HYDROLOGY
Recorded Data (describe in remarks)
_ Stream, Lake or Tide Gauge
Aerial Photographs
_ Other
_ No Recorded Data Available
Field Observations:
Depth of Surface Water: ((n•)
Depth to Free Water in Pit: (in-)
Depth to Saturated Soil:
Remarks:
W Land Hydrology Indicators:
Inundated
Saturated in Upper 12 Inches
Water Marks
— Drift Lines
-- Sediment Deposits
r— Drainage Patterns in Wetlands
S ondary Indicators: (2 or more required)
Oxidized Root Channels in
Upper 12 Inches
4EWater -Stained Leaves
Local Soil Survey Data
PAC Neutral Test
Other (explain in remarks)
WLdata.frm

SOILS
Map Unit Name
(Series and Phase): M I "N 00 M,l Drainage Class: W i Lt
Field Observations
Taxonomy (Subgroup): —"Pie HAPLuoULT Confirm Mapped Type? (a No
Profile Description:
Depth Matrix Color Mottle Colors M4ttlTexture. oncretions,
(im) Horiz (l) (Munsell Mo' t) Abundance/ intra t Structure etc.
0-4 A 10 R S/Z SL
4-10 EB 1019 (,/,J 5L
Io-It3 Bt �,sYc s/6 su.
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer in Sandy Soil
Sulfidic Odor Organic Streaking in Sandy Soils
Aquic Moisture Regime Listed on Local Hydric Soils List
Reducing Conditions Listed on National Hydric Soils List
Gleyed or Low-Chroma Colors _ Other (explain in remarks)
Remarks:
Wetland Determination
(circle yes or no)
Hydrophytic Vegetation Present? Yid No
Wetland Hydrology Present? Yes H1H
Hydric Soils Present? Yes 140
is This Sampling Point Within a Wetland? Yes d9D
Remarks:
Wl-data.trm

MEMORANDUM
TO: John Dorney Regional Contact: Charles Brown
Non -Discharge Branch WO Supervisor: Ken Grhijster
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name Arringdon c/o Lichtin Corp County Durham
Project Number 00 1248 County2
Recvd From AI'P Region Raleigh
Received Date 9/27/00 Recvd By Region
Project Type commercial
Certificates
Permit Wetland Wetland Wetland Stream
Type Type Impact Score Index
Mitigation Wetland
MitigationType Type Acres Feet
Stream
Class Acres Feet
Prim. Supp. Basin Req. Req.
C NSW .10,402. 0.11 F
Stream Impacts (ft.)
Is Wetland Rating Sheet Attached? Q Y 0 N Did you request more Info? O Y 0 N
Have Project Changes/Conditions Been Discussed With Applicant? O Y O N
Is Mitigation required? O Y (0 N Recommendation: Q Issue O Issue/Gond O Deny
Provided by Region: Latitude (ddmmss) 355249 Longitude (ddmmss) 784926
Inni2arls are less Than 1/3 of .• •r.. . . . ...... • a,. .• .
cc: Regional Office
Central Office Page Number 1

Facility Name
Arringdon
c/o Lichtin Corp
County
Durham
Project Number
00
1248
Regional Contact:
Charles Brown
Date:
Comments (continued from page 1):
cc: Regional Office Page Number 2
Central Office

Re: Aningdon Proicct
Subject: Re: Arringdon Project
Date: Wed, 13 Sep 2000 08:53:43 -0400
From: John Dorney <[e-mail]>
To: tstjohn <[e-mail]>
CC: Andy Padiak <apadiak@bbmassocia(es.com>, cyndi.karoly@ncmai].net
I'd say better leave room for a constucted wetland if the river basin is nutrient
sentitive or a wet pond if not.
tstjohn wrote:
> I am on vacation right now... but i'll be back friday... then i'll be gone 'till
> October... if you have to notify you'll likely have stormwater... if this
> doesn't answer your question feel free to call me on friday... if you need an
> answer sooner, please call John Dorney or Cyndi Karoly at [phone] or
> email them... tell them what river basin you're in and what permit the the USACE
> is going to use (ie NW 14, MW 39, etc.)
> Andy Padiak wrote:
> > Todd:
> > We are wozking on a master plan for a large mixed-use development (96 acres)
> > in Durham. We are going to be notifying that we need to fill in a small
> > amount of wetlands in order to construct a roadway crossing very soon. We
> > would like to set up a meeting with you in order to get your thoughts on
> > whether or not we will need water quality ponds.
> > Please give me a call or send me an e-mail.
> > Thank you,
> > Andrew Padiak
> > Project Manager
> > BBM Associates, Inc.
> > 527 Keisler Drive, Suite 104
> > Cary, North Carolina 27511
> > 919-852-5540
I of I 10/26/004:50 PM

M11M.T.WMI
City of Durham
Public Works Department
^ Storm water Services Divisions
cm OF B MEVDIC E 101 City Hall Plaza, Durham, North Carolina, 27701
Telephone [phone] FAX [phone]
Level Spreader" Design Summary
Stonnwater Management Constriction Plan Review:
A complete stormwater management construction plan submittal includes a design summary for
each stormwater BMP, design calculations, plans and specifications showing BMP, inlet and outlet
structure details.
I. PROJECT INFORMATION
Project Name: Duke Health Arringdon Phase
PIN: 0757-01-06-3834,-5655 Case #: Z0900015
N/A
Design Contact Person: Joshua C. Allen, PE CFM Phone #: (_T04 ) 527 - 0800
Legal Name of Owner: Duke Health
Owner Contact: Barry Clyde Phone #: (_91 9 ) 286 - 8326
Owner Address: 2200 West Main Street Durham, NC 27705
Deed Book 8211 Page # 109 or Plat Book 154 Page# 33 for BMP Property
For projects with multiple facilities, specify which facility this worksheet applies to: N/A
*Water Quality Treatment: _ % TSS X Nitrogen X Phosphorous —other
*Pollutant removal credits are achieved ONLY when the Vegetated Filter Strip (VFS) is an
engineered filter strip
Is there a BMP Upstream of the proposed Level Spreader. Yes / No
If yes, *Type of BMP Wet Pond Drawdown Flow from the BMP 0.07 cfs
* Per the buffer rules, a level spreader is NOT needed down slope of a stormwater wetland,
bioretetention area or any other BMP that removes a minimum of 30% TN and 30% TP.
If No, Please provide below drainage area information:
Drainage area ft2
Impervious area ft2
Percent Impervious %
Peak flow cfs (flow from 1 -inch per hour storm)
Peak flow cfs (flow from 10 -year storm)
**When it appears that the location of a level spreader may be infeasible or inappropriate,
coordination with the Stormwater Services Division to discuss alternative solutions (i.e., the
provision of alternative water quality RMPs, etc.) shall be required.

"Please see Section 8.3 for information on Level Spreader design. Note that Preformed Scour
holes are NO longer allowed in lieu of LS.Where does the Level Spreader Discharge i.e. the type of
Vegetated Filter Strip (VFS)
X Engineered Filter Strip, _Riparian Buffer , Where does the Level Spreader
Discharge i.e. the type of Vegetated Filter Strip
Slope within the VFS 6.67 %
IMax Average Slope cannot exceed 8%; a minimum level spreader length ofat least 10 linear
feet shall be provided for each 1 cfs of design flow; the design flow entering the level spreader
cannot exceed 10 cfs; and
1 Max Average Slope cannot exceed 5%; the design flow entering the level spreader (typically,
the 1 -inch per hour event) cannot exceed 2 cfs;a minimmn level spreader length of at least 50
linear feet shall be provided for each 1 cfs of design flow.
Are there any naturally occurring channels downstream of the level spreader present? X Yes No
If yes, explain how sheet flow condition is sustained The buffer downstream of the Engineered
Filter Strip is level and less than 8% slope.
Level Spreader design
Forebay Surface area
Design flow entering level spreader
Length of level Lip
Bypass channel length
Invert elevation of I -inch per hour (flow splitter)
Invert elevation of l—inch per hour bypass
Peak velocity in the bypass channel
Reinforcement for bypass channel
II. REQUIRED ITEMS CHECKLIST
60 ftz
0.07
cfs
10
ft
77
ft
N/A
ft
N/A ft
4.41 ft/sec (10 -year event)
Rip Rap (provide calculations)
The following checklist outlines design requirements. Initial in the space provided to indicate the
following design requirements have been met and supporting documentation is attached.
Applicant's initials
JCA a. A description of the VFS characteristics downstream of the proposed level
spreader location has been provided.
JCA b. Sizing of the level spreader (e.g., proposed length) based on design flow has
been provided.
JCA c. Level Spreader shall be concrete
JCA d. A blind swale is required immediately upslope of the lip for stromwater
distribution. Blind swales shall be designed as 10 -ft wide linear wetlands and
shall be planted as such.
JCA e. Forebay has been provided with a surface area of 0.2% of the contributing
drainage area's impervious surface

JCA f.
JCA g. Evaluation (i.e., discharge rates, erosive potential, etc.) of the high-flow bypass
channel has been provided.
JCA It. When an engineered filter strip is to be used, this strip shall be placed in an
easement and this filter strip area shall be maintained as a dense grass in
perpetuity. The design drawings should reflect this as well.
JCA i. A construction sequence that shows how the level spreaders will be protected
from sediment until the entire drainage area is stabilized is provided.
JCA j. Riprap outlet protection, if provided, reduces flow to non-erosive velocities.
JCA k. A recorded drainage easement is provided for each level spreader including
access to the nearest right-of-way and is graded per Section 8.3, Stormwater
Control Facilities (BMPs).
JCA 1. An annual operation and maintenance plan is provided.
JCA in. A plan view of the level spreader system is provided.
JCA n. Details for the flow bypass structure are provided. Invert elevations are shown.
JCA o. A #57 stone is specified downstream of the level spreader.
JCA p. Runoff from storms larger than the I -inch per hour storm is routed around the
level spreader,
Note: Executed Stormwater Facility Operation and Maintenance Permit Agreement,
payment of $700 permit fee per facility are required prior to construction drawing approval.

M C A ivis
LETTER OF TRANSMITTAL
To: Ms. Lvn Hardison & Mr. Chris Pullinaer
NC Division of Water Resources
Washington Regional Office
943 Washington Square Mall
Washington, NC 27889
Re: Neuse Buffer Authorization - Express Review
Duke Health -
I am sending you the following item(s):
NOV 14 2017
f
Date: November 10, 2017
FEDERAL EXPRESS**
Job No.: DKH-17010
COPIES
DATE
NO.
DESCRIPTION
1
11/10/17
Check for $2000 (express review application fee
4
11/10/17
Riparian Buffer Authorization Form
4
11/10/17
Supporting Documentation
1
11/10/17
24'x36" plan set (Fig 3. Existing Conditions & Fig. 4
Overall Impact Ma
These are transmitted as checked below:
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