SAW-2023-01894 Cardinal Pipeline ROW Cardinal Extension Company Apex Wake County NC_NWP 18 VERIFICATION.pdf

DEPARTMENT OF THE ARMY
'1 U.S.ARMY CORPS OF ENGINEERS,WILMINGTON DISTRICT
- WILMINGTON REGULATORY OFFICE
69 DARLINGTON AVENUE
WILMINGTON NORTH CAROLINA 28403
November 16, 2023
Regulatory Program/Division
Raleigh Regulatory Field Office
SAW-2023-01894
Laura Rudolf
Cardinal Extension Company, LLC.
2800 Post Oak Road
Level 11
Houston, Texas 77056
Via Email: [e-mail]
Dear Laura Rudolf:
This letter is in response to the Pre-Construction Notification (PCN) you submitted to
the Wilmington District, Raleigh Regulatory Office on September 21, 2023, for a
Department of the Army Nationwide permit (NWP) verification. This project has been
assigned the file number SAW-2023-01894 and is known as None. This file number
should be referenced in all correspondence concerning this project.
A review of the information provided indicates that the proposed work would include
the temporary impact to 130 linear feet of intermittent stream channel (390 square feet)
to provide protection and stream stabilization associated with an exposed natural gas
line (Impact S1). To access the site, two intermittent streams along the existing right-of-
way would be clear-spanned from bank to bank with no impact to these features
anticipated. The project area for this determination includes 2.32 acres which is
illustrated on the enclosed site plans/maps. The project/review area is located 0.17
miles north-northeast of the intersection of Franconia Way and Apex Barbecue Road, at
Latitude 35.723771 and Longitude -78.899978; in Apex, Wake County, North Carolina.
We have determined that the proposed work would be authorized by Nationwide
Permit 18 pursuant to authorities under Section 10 of the Rivers and Harbors Act of
1899 (33 U.S.C. § 403), and/or Section 404 of the Clean Water Act (33 U.S.C. § 1344)
and Section 14 of the Rivers and Harbors Act of 1899 (33 U.S.C. § 408). The proposed
work must be accomplished in strict accordance with the general permit conditions, any
regional conditions, the special conditions listed in this letter, the application materials,
and the enclosed plans, "Approximate Aquatic Resources" (Project Area), and
"Conceptual Stream Restoration Cardinal Pipeline Company, LLC ROW". If the extent
of the project area and/or nature of the authorized impacts to waters are modified, a
revised PCN must be submitted to this office for written approval before work is initiated.

Any violation of permit conditions or deviation from your submitted plans may subject
the permittee to enforcement action.
This verification is valid until March 14, 2026, unless prior to this date the subject
NWP(s) is suspended, revoked, or is modified such that the activity no longer complies
with the terms and conditions of this NWP. If you commence or are under contract to
commence this activity before the date that the relevant NWP is modified or revoked,
you will have 12 months from the date of the modification or revocation of the NWP to
complete the activity under the present terms and conditions of this NWP.
Project Specific Special Conditions:
1. Suitable habitat for tricolored bat (Perimyotis subflavus) may be present at the
site. On September 14, 2022, the USFWS published a proposal in the Federal
Register to list the tricolored bat as endangered under the Endangered Species
Act (ESA). The permittee understands and agrees that all work associated with
the clearing and removal of trees and removal or modification of culverts must be
completed prior to the effective date of the final listing in the Federal
Register. Work associated with the aforementioned activities not completed by
that time must cease and the permittee must contact the Corps' (insert PM
contact information here) to determine if additional coordination with the United
States Fish and Wildlife Service is required under Section 7 of the Endangered
Species Act prior to continuing work.
Activities subject to Section 404 (as indicated above) may also require an individual
Section 401 Water Quality Certification. You should contact the NC Division of Water
Resources (telephone [phone]) to determine Section 401 requirements.
For activities occurring within the twenty coastal counties subject to regulation under
the Coastal Area Management Act (CAMA), prior to beginning work you must contact
the N.C. Division of Coastal Management in Wilmington, NC, at [phone].
This NWP verification does not preclude the necessity to obtain any other Federal,
State, or local permits, licenses, and/or certifications, which may be required.
If you have any questions related to this verification or have issues accessing
documents referenced in this letter, please contact Christopher Hopper, Team Lead of
the Technical Regional Execution Center on behalf of the Raleigh Regulatory Office at
[phone], by mail at 100 West Oglethorpe St., Savannah, GA 31401 , or by email
at christopher.d.hopper�usace.army.mil.

If you have any questions related to follow-up actions associated with this permit, such
as compliance inspections, please contact Lyle Phillips, PM of the Raleigh Regulatory
Office at [phone], by mail at 3331 Heritage Trade Drive, Suite 105, Wake
Forest, North Carolina 27587, or by email at [e-mail]. Please
take a moment to complete our customer satisfaction survey located at
https://regulatory.ops.usace.army.mil/ords/f?p=136:4.
Sincerely,
Christopher Hopper
TREC Team Lead / Wilmington District
Liaison
Enclosures
Cc (w/enclosures)
George Junkin, American Land Concepts, Inc. (via
[e-mail])

General Conditions (33 CFR PART 320-330):
1. The time limit for completing the work authorized ends on March 14, 2026.
2. You must maintain the activity authorized by this permit in good condition and in
conformance with the terms and conditions of this permit. You are not relieved of this
requirement if you abandon the permitted activity, although you may make a good faith
transfer to a third party in compliance with General Condition 4 below. Should you wish
to cease to maintain the authorized activity or should you desire to abandon it without a
good faith transfer, you must obtain a modification of this permit from this office, which
may require restoration of the area.
3. If you discover any previously unknown historic or archeological remains while
accomplishing the activity authorized by this permit, you must immediately notify this
office of what you have found. We will initiate the Federal and state coordination
required to determine if the remains warrant a recovery effort of if the site is eligible for
listing in the National Register of Historic Places.
4. If you sell the property associated with this permit you must obtain the signature
of the new owner as required by General Condition 29 and forward a copy to this office
to validate the transfer of this authorization.
5. You must allow a representative from this office to inspect the authorized activity
at any time deemed necessary to ensure that it is being or has been accomplished in
accordance with the terms and conditions of your permit.

Compliance Certification Form
Action ID Number: SAW-2023-01894 County: Wake
Permittee: Cardinal Extension Company, LLC., Laura Rudolf
Project Name: None
Date Verification Issued: 11/16/2023
Project Manager: Chris Hopper
Within 30 days of completion of the activity authorized by this permit and any mitigation
required by the permit, sign this certification and return it to the following address:
US ARMY CORPS OF ENGINEERS
Wilmington District
Attn: Lyle Phillips
Raleigh Regulatory Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
or
George.L.Phi [e-mail]
Please note that your permitted activity is subject to a compliance inspection by a U. S.
Army Corps of Engineers representative. Failure to comply with any terms or conditions
of this authorization may result in the Corps suspending, modifying or revoking the
authorization and/or issuing a Class I administrative penalty, or initiating other
appropriate legal action.
I hereby certify that the work, and mitigation (if applicable), authorized by the above
referenced permit has been completed in accordance with the terms and conditions of
the said permit including any general or specific conditions.
Date Authorized Work Started: Completed:
Describe any deviations from permit (attach drawing(s) depicting the deviations):
*Note: The description of any deviations on this form does not constitute approval by the Corps.
Signature of Permittee Date

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CONCEPTUAL STREAM RESTORATION
CARDINAL PIPELINE COMPANY, LLC ROW
AT
TRIBUTARY TO BEAVER CREEK
WAKE COUNTY, NORTH CAROLINA
Site Location: August 2023, Revised October 2023
�:.. INDEX
Site
Location
r >_ Sheet I Title Sheet
"�rx Sheet 2 Existing Conditions
Sheet 3 Proposed Conditions
APEX Sheet 4 Cross-Sectional View and Sequence of Construction
a ,
-�
Sheet 5 Profile View
I
r
Topographic Map Scale: 1"=5,000'
*topo shown is prior to development in the vicinity.
Prepared For:
Cardinal Pipeline Company,LLC
2800 Post Oak Road,Level 11
Houston,Texas 77056
AMERICAN LAND CONCEPTS
238 B MAIN STREET
REISTERSTOWN, MARYLAND 21136
PHONE: [phone]
Sheet 1 of4

---
--- - ;
Existing Conditions
-------�_ Nam
Conceptual Stream Stabilization ';
----- 540
Cardinal Pipeline Company, LLC ROW , y
--- - at Trib to Beaver Creek /►
0
Apex Barbecue Rd
Wake County North Carolina 1
"" August 2023, Revised October 2023 p-N-.Pa*
Milane m
' _____ _ w
'
EXISTING: Vicinity Map Scale: I"=3,000'
------------ The Site is located approximately 14.5 miles southwest of Raleigh, Wake County, Virginia, on the
Cardinal Pipeline Company, LLC Right-Of-Way(ROW). There is one natural gas pipelines that run
the length of the ROW in this location and the ROW is routinely maintained. The pipeline was
________________ `, installed prior to development in the vicinity.
-------------
The development to the south constructed a SWM pond immediately adjacent to the ROW with a rip
rap outfall channel that flows northwest and ends at the ROW limits. At this point an intermittent
1 stream forms that makes a sharp turn to the north onto ROW where erosive conditions have resulted
------- in large drops and a large erosion gully in the middle of the ROW. The channel then turns to the
Existing Maintained northwest where the pipeline crosses the channel and flows on or parallel to the pipeline for
i \ RAW(50') approximately 100 feet befor turning into the treeline and off the ROW. This portion of the channel i
' relatively 2-3 feet wide and 2.5-3.5 feet deep with steep banks. The approximate drainage to the
`- Project Area is 0.02+/- square miles.
----- PHOTOGRAPHS:
------
----- —---------------
_ --
= ----
Photo 1:View of Photo 2:View looking upstream Photo 3:View of stream channel and
-------- WM outfall. downstream
S where stream curve onto the ROW pipeline location looking
-_-------------------
and erosive condtions in the middle from end of large erosion gully.
PLAN VIEW SCALE: 1 "=25' 0' 25' 50' 75'
Photo 4:View looking downstream Photo 5:View looking upstream Photo 6:View large erosion gully
from the 2.5 foot drop. where stream curves into the treeline. and slope of the SWM pond.
AMERICAN LAND CONCEPTS * Prepared For:
238 B MAIN STREET Conceptual plans for permitting purposes only.
REISTERSTOW N, MARYLAND 21136 "Elevations are based on assumed datum and have Cardinal Pipeline Company,LLC
2800 Post Oak Road,
PHONE: [phone] been approximated from a cursory field investigation. Houston,Texas 77056
Sheet 2 of 5

- --------------------- General Location Map:
----
Proposed
--------
lo
Conceptual Stream Stabilization S40
Z", X Cardinal Pipeline Company, LLC ROW I�PT E
----------------- at Trib to Beaver Creek
Existin d Proposed Sandbag diversion Wake County, North Carolina '4Pex Barbe-e Rd
amInvert -------------------------------------------
Ele 86.7'+/- August 2023, revised October 2023 Ape N­m P,,k
Existing and osed -------------
Stream ert
Existing and pro b ------
StrearkI --------
Elev.=88.4'+Existing and Propos o PROPOSED: Vicinity Map Scale: 1 00,
Stream Inve
Elev.=89.2'+/- To stabilize the stream and minimize future erosion at the existing pipeline and within the ROW, installation of
four step-pool drop structures is proposed to be constructed between the existing pipeline and the treeline,
--------------------- downstream of where the pipeline turns and crossed the the channel.
------- --------- The step-pool structure will be constructed approximately 35+/-LF upstream from where the stream curves into
the eastern treeline. The top of the structure will be at an elevation of approximately 90.0'. This step-pool
structure will drop approximately 9.9 inches with a pool 5+1-FT in length and I+/-FT deep. The bottom of the
--------------- -- structure will return the channel to the existing grade, approximately 86.7'. To further minimize stream migration
-------- ...... --------------
--___________------------ Dewatering D6vice and protect the pipeline,the top of the step-pool structure will extend rock an additional 7.5-8 feet from the top of
stream bank to maintain water flow through the step-pool structure. The step-pool structures will dissipate the
water velocity creating a natural riffle-pool scenario providing habitat for species.
------------------------------ LOD
LOD LOD LOD LOD— Immediately upstream of the step-pool structure,the channel will be filled with clean fill/bed stability mix and
any excavated material to the top of the 2.5 foot drop downstream of the rip rap,95+/-LF. The filled channel
-- ...........
------- ----------
------ ......i... will incorporate a 6 inch deep channel ranging from 2-3 wide to allow water to flow across the ROW to the drop
One.. structure,minimize future erosion, and protect the pipeline.
P
------------------------------- DO '"one. ao-I ao-I 00 1 Armor Stone will be utilized for step-pool construction. Armor Stone will range from 300-700 lbs.The
Sandtiag diversi i I------------ I PICE
S 06 K
variations in the surface of the Armor Stone will be utilized to create a low flow channel through the step-pool
A structure during construction. After proposed construction is complete,all disturbed areas will be seeded with a
----------------- 0 9, DOI native seed mix post construction. No trees will be removed to construct the stream stabilization.All work will
be completed within the routinely maintained ROW or the stream channel itself
-------
----- ---------------------- Access to the stream stabilization will be via the ROW from 2293 Toad Hollow Trail driveway, approximately
--------- -------------
------ ----------- 0.35 miles east southeast from the project area. Intermittent streams located within the ROW as shown on the
------------ -----------------------
Aquatic Resources Map dated August 2023,Revised October 2023 to access the site will be spanned utilizing
---------------
mats to avoid any additional stream impacts for site access. All work will be initiated during a 3-day NOAA No
--------------------------- Rain Period.Pump around and dewatering practices will be utilized as necessary to allow work to be completed
Z
---------------- in the dry and maintain flow downstream.Any sediment-laden water from the work area will be pumped
downstream through a sediment filter bag to reduce sediment transport.
PLAN VIEW SCALE: I "=25' of 25' 50' 75, Note: A stream specialist must be onsite during construction to successfully implement this design and ensure
proper installation of the armor stone. This conceptual design is a guide. Design tolerance will allow for minor
variations in grade control elevation,pool depths,pool drops, and pool lengths. These variations are unaviodable
due to the variations of the rock surface and current stream conditions during construction. This tolerance allows
for a more natural,less engineered look to the remedial actions proposed.
IMPACTS:
The proposed activities will impact approximately 130 LF(330 SF)of perennial stream resulting in
approximately 3.0 CY of fill placed below the plane of OHWM to complete the proposed activities.
AMERICAN LAND CONCEPTS *Conceptual plans for permitting purposes only. Prepared For:
238 B MAIN STREET Cardinal Pipeline Company,LLC
REISTERSTOWN, MARYLAND 21136 "Elevations are based on assumed datum and have 2800 Post Oak Road,
PHONE: [phone] been approximated from a cursory field investigation. Houston,Texas 77056 Sheet 3 of 5

Cross-Sectional View and Sequence of Construction
Conceptual Stream Stabilization
Cardinal Pipeline Company, LLC ROW
CROSS-SECTION ELEVATION at Trib to Beaver Creek
SCALE: HORIZ: I "= 10', VERT: I "= 10'
CS CS
100 Pr
100
96 Grad 96 Pro 5ed
94 94 Grade
-- ---
ILI
92 92
E i 8
88 Grade 8
8G 8G
84 84 LX15t1n6j ape ine
82 82 Approx UTpth
80 5 10 15 20 25 30 35 40 45 50 80 5 10 15 20 25 30 35 40 45 50
SEQUENCE OF CONSTRUCTION
1. Call NC 811(or 1-800-632-4949) at least 72 hours prior to beginning work.
2. Mobilize equipment.
3. No more area shall be disturbed than can be completed and stabilized by the end of each work day.
4. Install bypass pumping, if necessary. At the end of each work day, the work area must be stabilized, any sediment accumulated within the work areas should be removed prior to
removal of the pump around and restoring stream flow. Work should not be conducted in the channel during rain events.
5. Construct the step pool rock structures per these plans.
6. Fill upstream of the step pool structures to grade per these plans.
7. Perform final grade earthwork.
8. Stabilize all disturbed areas with temporary seed and permanent native seed mix.
9. Thoroughly clean the site removing all debris and miscellaneous construction materials.
*Conceptual plans for permitting purposes only.
**Elevations are based on assumed datum and have been approximated from a cursory field investigation.
AMERICAN LAND CONCEPTS Wake County, North Carolina p
Pre ared For:
238 B MAIN STREET August 2023, Revised October 2023 Cardinal Pipeline Company,LLC
REISTERSTOWN, MARYLAND 21136 2800 Post Oak Road,
?U!!O- PHONE: [phone] Houston,Texas 77056
Sheet 4 of 5

Profile View
Conceptual Stream Stabilization
PROFILE ELEVATION Cardinal Gas Pipeline Company, LLC ROW
SCALE: f10RIZ: I "= 1 0', VERT: I °= 10' at Trib to Beaver Creek
PRO
ELEV
,-Rip Rap from SWM Pond Outfall-4
100
98 w
96 w Bed Stability Mix/ ill
94
92 - - - - --- ----- - - ---- - - ------- ---------- a
---- --
----------------------
90
77
88
86
84 Z
82 W xistin Pip line
olu
800 O O O O O O O O O O O O O O
�-
+ + + + + + + + + + + + + + +
O O O O O O O O O O — — — — —
Step-Pool Sequence IExisting Grade
100
C 98 -------------------------- Proposed Grade
96
00 �
inp O_ .9N cp_
tu) m (n . 94
_ -- O..:.w----- J j- w t+nwo
9 0
J
' �w u QJ
86
84
0 82
O O O O O 080
d Ln 0
+ + + + + + *Conceptual plans for permitting purposes only.
**Elevations are based on assumed datum and have been
approximated from a cursory field investigation.
Wake County, North Carolina
AMERICAN LAND CONCEPTS Prepared For:
238 B MAIN STREET August 2023, Revised October 2023 Cardinal Pipeline Company,LLC
H Post O
REISTERSTOWN, MARYLAND 21136 Road,
PHONE: [phone] Hoouu0 Houston Texaass 77057056 Sheet 5of5