20221692 Ver 1_More Info Received_20230127

PILOT GEOLOICALPLLC
January 27, 2023
Mr. David Bailey
US Army Corps of Engineers
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Ms. Sue Homewood
Division of Water Resources, Winston-Salem Regional Office
Department of Environmental Quality
Reference: Request for Additional Information
Beckett Townes Subdivision
4321 Johnson Street
High Point, Guilford County, North Carolina
SAW-2022-01124/DWR 401 Project #20221692
Pilot Project 6573.3
Dear Mr. Bailey and Ms. Homewood:
Pilot Environmental Inc. ("Pilot") has prepared this response on behalf of LeoTerra Johnson
Street, LLC to address a Request for Additional Information from the USACE/NCDEQ dated
December 29, 2022 (attached). The information requested and our responses/comments are
included below.
1) Wetland Impact 1 would require a culvert to allow maintenance of hydrologic
connectivity per NWP General Conditions 2 and 9, and NWP 29 Regional Condition B.9.a.
Please update the plan view accordingly, and provide a profile view showing the culvert
location, size, and grade.
Response: A culvert has been added under the roadway. Please see the attached culvert
exhibit.
2) Based on proposed grading and re-routing of drainage into stormwater ponds, the project
appears to eliminate the drainage area/hydrology source for the remainder of the
Wetlands WC and WE downslope of proposed fille slopes in the vicinity of proposed
Wetland Impacts W3 and W4. Can measures be taken to re -introduce surface or
subsurface hydrology to these wetlands at the toe of fill? Typical measures include a
French drain from the seep point/wellpoint to an outlet at the toe of fill and/or low
velocity discharge from a stormwater pond to the toe of fill. If such changes are
practicable, please describe and update the plansheet(s) accordingly.
PO Box 128, Kernersville, NC 27285
www.pilotenviro.com

Request for Additional Information
November 18, 2022
Unless otherwise justified per the above, the Corps would consider the remainder of the
wetland downslope of the toe of fill as reasonably foreseeable indirect impacts (see NWP
General Conditions "District Engineers Decision") resulting from a loss of hydrology.
Compensatory mitigation would be required for such indirect impacts resulting in a loss
of aquatic function, typically required at a 1:1 ratio depending largely on resource quality;
Response: French drains have been incorporated into the design of the retaining walls
(attached). The French drains will daylight beneath the retaining walls upgradient of the
wetlands and supply hydrology back to the heads of the wetlands. Additionally, the
hydrology of these wetlands also occurs from surfacing groundwater. While some of the
surface hydrology may be rerouted during heavy rain events, the wetlands will continue
to receive hydrology from the groundwater table. The drainage areas located up gradient
of wetland WC will remain approximately 55 percent pervious and the drainage area
upgradient of wetland WE will remain approximately 60 pervious. While some of the
upgradient surface water may be redirected, there will be no dewatering or disturbance
to the groundwater table. Over 55 percent of each of the wetlands drainage area will
continue to recharge the groundwater table and the hydrology of these wetlands. As
such, hydrology to wetlands WC and WE will continue to be supplied by the groundwater
table in addition to the French drains that will daylight upgradient of these wetlands. No
significant impacts to these wetlands are anticipated due to indirect impacts. Please see
the attached exhibit of French drains that will discharge beneath the retaining walls up
gradient of the wetlands.
3) It is your responsibility to contact the North Carolina Division of Water Resources
(NCDWR) Winston Salem Regional Office to determine the 401 requirements for this
project. Please note that, if an Individual 401 Water Quality Certification (WQC) is
required from NCDWR (as appears to eb the case), the Corps cannot verify the use of any
NWP without a valid 401 WQC.
Response: Noted. The NCDWR is reviewing in conjunction with and had the same
comments as those of the USACE.
2

Request for Additional Information
November 18, 2022
Closing
We appreciate your time and consideration of this matter. Please contact us at 336.310.4527 if
you have any questions concerning the proposed plan.
Sincerely,
David S. Brame, PWS
Senior Project Manager
Attachments:
tked-1 7 X4—
Michael T. Brame, PWS
Principal
Culvert Exhibit
AB-11 Slope Grade Drain
USACE and NCDWR E-mail dated December 29, 2022
3

Scale: 1 " = 100'
\\\ .N CARO '0•cl,/
� oFEssia 9.-7
SEAL
052534 : _
.'GINE��'
Scale: 1" = 40'
z
N
Bowman
Bowman Consulting Group, Ltd.
10130 Perimeter Pkwy, Suite 100
Charlotte NC, 28216
Phone: [phone]
www.bowman.com
CULVERT EXHIBIT
BECKETT TOWNS
High Point, NC
Q Bowman, Ltd.

885
885
PROPOSED GRADE
EXISTING
GROUND
No
N�
880
r
aD
880
2.aco
I
II
k,
11 ii
W
11 i_
—W
Z
W O
co
E —
•° DOUBLE BARREL 18" °
EQUALIZER CULVERT :
6 18" RCP CLASS
III @ 0.04%
—0+25 0+00
1+00 1+25
Alicnment — Culvert PROFILE VIEW
HOIZO\TAL SCALE: 1 "=40'
VERTICAL SCALE: 1 "-4'
Bowman
Bowman Consulting Group, Ltd.
10130 Perimeter Pkwy, Suite 100
Charlotte NC, 28216
Phone: [phone]
www.bowman.com
CULVERT EXHIBIT
BECKETT TOWNS
High Point, NC
© Bowman, Ltd.

Allan Block
unit
Concrete collar
Rodent screen
Finished grade
// /
7/
/
•
•
• .:a
•p 4 t
Filter fabric to be
placed between topsoil
and wall rock
//\/\/\\/\ j\\ j\/ j\\ j\\ j\\ j\\ j\/:
•
4 in (100 mm) toe drain
pipe vented to daylight
Well -graded granular wall
rock 0.25 to 1.5 in
(5 mm to 38 mm)
less than 10% fines
4 in (100 mm) heel drain
pipe vented to daylight
Designed By:
Title:
AB-11 SLOPE GRADE DRAIN
Date:
Checked By:
Scale:
Not to Scale
BLOCK
allanblock.com
The purpose of this drawing is for preliminary design only. This should not be used for final design or
construction without the certification of a professional engineer registered in the state in which the wall
will be built. The accuracy and use of details contained in this document are the sole responsibility of the
user. The user must verify each detail for accuracy as they pertain to their particular project.
© 2021 Allan Block
Project No:
Drawing No:

David Brame
From: Homewood, Sue <[e-mail]>
Sent: Thursday, December 29, 2022 12:47 PM
To: David Brame; Clay Mize
Cc: Heather LaGamba; Samuel Hinnant; [e-mail]
Subject: Request for Additional Information for Beckett Town Townes SD - Guilford County -
DWR#20221692
All,
DWR has completed it's review of the above noted project. We have the same concerns as noted by the USACE in Items
1 & 2 below. Please copy me on your response to David's email. Please note that the application will be considered "on
hold" until receipt of a complete response.
Thanks,
Sue Homewood
Division of Water Resources, Winston Salem Regional Office
Department of Environmental Quality
336 776 9693 office
336 813 1863 mobile
[e-mail]
450 W. Hanes Mill Rd, Suite 300
Winston Salem NC 27105
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Bailey, David E CIV USARMY CESAW (USA) <[e-mail]>
Sent: Thursday, December 29, 2022 11:57 AM
To: David Brame <[e-mail]>; Clay Mize <[e-mail]>
Cc: Homewood, Sue <[e-mail]>; [e-mail]; Samuel Hinnant
<[e-mail]>
Subject: [External] Request for Additional Information: SAW-2022-01124 (Beckett Townes Subdivision / 4321 Johnson
Street / High Point / Guilford County)
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
All,
Thank you for your PCN, dated 11/30/2022, for the above referenced project. I have reviewed the information and need
clarification before proceeding with verifying the use of Nationwide Permit (NWP) 29 (https://saw-
reg.usace.army.mil/NWP2021/NWP29.pdf). Please submit the requested information below (via e-mail is fine) within 30
days of receipt of this Notification, otherwise we may deny verification of the use of the Nationwide Permit or consider
your application withdrawn and close the file:
1

1) Wetland Impact 1 would require a culvert to allow maintenance of hydrologic connectivity per NWP General
Conditions 2 and 9, and NWP 29 Regional Condition B.9.a. Please update the plan view accordingly, and provide
a profile view showing the culvert location, size, and grade.
2) Based on proposed grading and re-routing of drainage into stormwater ponds, the project appears to eliminate
the drainage area/hydrology source for the remainder of the Wetlands WC and WE downslope of proposed fille
slopes in the vicinity of proposed Wetland Impacts W3 and W4. Can measures be taken to re -introduce surface
or subsurface hydrology to these wetlands at the toe of fill? Typical measures include a French drain from the
seep point/wellpoint to an outlet at the toe of fill and/or low velocity discharge from a stormwater pond to the
toe of fill. If such changes are practicable, please describe and update the plansheet(s) accordingly.
Unless otherwise justified per the above, the Corps would consider the remainder of the wetland downslope of
the toe of fill as reasonably foreseeable indirect impacts (see NWP General Conditions "District Engineers
Decision") resulting from a loss of hydrology. Compensatory mitigation would be required for such indirect
impacts resulting in a loss of aquatic function, typically required at a 1:1 ratio depending largely on resource
quality;
3) It is your responsibility to contact the North Carolina Division of Water Resources (NCDWR) Winston Salem
Regional Office to determine the 401 requirements for this project. Please note that, if an Individual 401 Water
Quality Certification (WQC) is required from NCDWR (as appears to eb the case), the Corps cannot verify the use
of any NWP without a valid 401 WQC.
Please let me know if you have any questions.
Sincerely,
Dave Bailey
David E. Bailey, PWS
Regulatory Project Manager
US Army Corps of Engineers
CE-SAW-RG-R
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Mobile: [phone]
Email: [e-mail]
We would appreciate your feedback on how we are performing our duties. Our automated Customer Service Survey is
located at: https://regulatory.ops.usace.army.mil/customer-service-survey/
Thank you for taking the time to visit this site and complete the survey.
From: RaleighNCREG <[e-mail]>
Sent: Wednesday, November 30, 2022 3:00 PM
To: [e-mail]
Cc: Bailey, David E CIV USARMY CESAW (USA) <[e-mail]>
Subject: SAW-2022-01124 (4321 Johnson Street / High Point / Guilford County)
Good afternoon,
We have received your Pre -Construction Notification (PCN) NWP request for the above project and forwarded it to Dave
Bailey for further processing.
Thank you,
2

Josephine Schaffer
From: [e-mail] <[e-mail]>
Sent: Wednesday, November 30, 2022 2:09 PM
To: RaleighNCREG <[e-mail]>
Cc: SAW-PCN-RG <[e-mail]>
Subject: [Non-DoD Source] More Information Received - Non -DOT - Guilford
New Project has been received on 11/30/2022 2:07 PM for Beckett Townes Subdivision/Johnson Street. The link below
will take you to the project folder.
https://edocs.deq.nc.gov/laserfiche/index.aspx?db=WaterResources#id=546066;view=browse
This email was automatically generated by Laserfiche workflow. Please do not respond to this email address, as
responses aren't monitored.
3