20220471 Ver 1_More Info Received_20220526

Strickland, Bev
From: Harbour, Jeff W <[e-mail]>
Sent: Thursday, May 26, 2022 9:24 AM
To: Cohn, Colleen M
Cc: Dailey, Samantha J CIV USARMY CESAW (USA)
Subject: [External] RE: Belle Grove DWR#20220471 - REQUESTED INFO ATTACHED
Attachments: belle grove.pdf; IM-BUFF-3.0.pdf; IM-OVERALL-1.0.pdf
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Colleen,
Attached please find the revised buffer impact maps along with a revised page from the PCN with the buffer impact
table revised. Going back through the Table of Uses, I'm proposing using the Non -Sewer Utility Line category for the
outfall pipe. The impacts proposed are Deemed Allowable under this category; if you agree.
Thanks
Jeff Harbour, PWS
Senior Scientist I Natural Resources
2401 Brentwood Road, Suite 107 I Raleigh, NC 27604
D [phone] I M [phone]
jeff.harbour©terracon.com I Terracon.com
Ill 0 CI
From: Cohn, Colleen M <[e-mail]>
Sent: Friday, May 20, 2022 11:16 AM
To: Harbour, Jeff W <[e-mail]>
Cc: Dailey, Samantha J CIV USARMY CESAW (USA) <[e-mail]>
Subject: Belle Grove DWR#20220471
Good morning,
I am beginning my review of the above referenced project, and in order to complete the review, some additional
information is required:
1) Zone 1 of the buffer is shown as 20' and Zone 2 is shown as 30' on impact map IM-3.0. Zone 1 should be 30' and
Zone 2 should be 20'. Please revise the impact maps, and if necessary, provide an updated impact table. [15A
NCAC 02B .0714(8)]
2) Please provide a description and/or citation for the impact types shown in the Buffer Impact Table. "Deemed
allowable" and "Allowable w/ mitigation" do not convey which item in the rules or table of uses that the impact
type falls under. [15A NCAC 02B .0714]
Thanks,
1

Colleen Cohn
Environmental Specialist II
North Carolina Department of Environmental Quality
Division of Water Resources
Raleigh Regional Office
380o Barrett Drive
Raleigh, NC 27609
Office: 919-791-4258
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2

6a. Project is in which protect basin(s)? *`
Check all that apply.
Neuse Tar -Pamlico
Catawba Randleman
Goose Creek Jordan Lake
Other
6b. Impact Type* (?) 11
Deemed allowable
6c. Per or Temp"(?)
P
6d. Stream name" 11
UT of Buffalo Creek
6e. Buffer mitigation required?"
No
6f. Zone 1 impact"
0
(square feet)
6g. Zone 2 impact"
643
(square feet)
Allowable w/mitigation
P
UT of Buffalo Creek
Yes
215
(square feet)
0
(square feet)
6h. Total buffer impacts:
Zone 1 Zone 2
Total Temporary impacts: 0.00 0.00
Zone 1 Zone 2
Total Permanent impacts: 215.00 643.00
Zone 1 Zone 2
Total combined buffer impacts: 215.00 643.00
6i. Comments:
E. Impact Justification and Mitigation U
1. Avoidance and Minimization
la. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project: *
The project was designed with avoidance and minimization as a top priority. A single open water impact for a road crossing is proposed. The outlet for
the storm water pond could not be configured any other way after extensive studies by the engineer. Approximately 240,000 cubic yards of offsite fill
material would be needed to construct the site without this impact.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques:
Stringent ESC measures will be used during construction. Wetland to remain undisturbed will be marked with tree protection fencing. Temporary wetland
impact areas will be returned to original contours and revegetated with native seed mix. The area below the open water road crossing will be allowed to
revert to a natural wetland state, thus adding to the amount of vegetated wetlands remaining undisturbed on the site.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State?
Yes No
2b. If this project DOES NOT require Compensatory Mitigation, explain why:
The 404 impact amount does not exceed the mitigation threshold under NWP 29
NC Stream Temperature Classification Maps can be found under the Mitigation Concepts tab on the Wilmington District's RIBITS website.
F. Stormwater Management and Diffuse Flow Plan (required by DWR) -
*** Recent changes to the stormwater rules have required updates to this section .***
1. Diffuse Flow Plan
la. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules?
Yes No
1 b. All buffer impacts and high ground impacts require diffuse flow or other form of stormwater treatment. If the project is subject to a state implemented riparian buffer protection program,
include a plan that fully documents how diffuse flow will be maintained.
All Stormwater Control Measures (SCM)s must be designed in accordance with the NC Stormwater Design Manual. Associated supplement forms and other documentation shall be
provided.

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TEMPORARY WETLAND IMPACT y-\
PROPOSED AREA B - (EXCAVATION)
20' BUFFER 1,330 SF
(TYP)
PROPOSED
STORM
SEWER
PERMANENT BUFFER IMPACT
AREA B-ZONE 1
423 SF
Tos
-- ---- - -
\1
�x �\
WETLAND CONVERSION IMPACT
AREA B - CLEARED MAINTENANCE
3,729 SF y ��
PERMANENT BUFFER IMPACT BUFF
AREA B - ZONE 2 - — (TYP)ER �\\
435 SF
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/ F7 ,i77/f �00 FXYP STREAM i y� o EX. STREAM
/j�7 � BUFFER (TYP) I _ _ _ -� — (TYP)
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.
REFER TO SHEET IM-1.0
FOR PROFILE VIEW
BELLE GROVE SUBDIVISION
I M PACT MAP
SCALE: 1"
THE SPAULDING GROUP, PA
planning - civil engineering
1611 •Jones Phvshlin Road Suite 101 Raleigh, NC27606
Phone[phone] Fax[phone]
IMPACT MAP TOTALS
TOTAL WETLAND CONVERSION IMPACT (CLEARED = 3,729 SF
(MAINTENANCE)
TEMPORARY WETLAND IMPACT (EXCAVATION) = 1,330 SF
TOTAL PERMANENT BUFFER IMPACT - ZONE 2 = 435 SF
TOTAL PERMANENT BUFFER IMPACT - ZONE 1 = 423 SF
PREPARED FOR:
CAROLINA LAND GROUP
341 KILMAYNE DRIVE STE. 201
CARY, NC 27511
DATE : 03/14/2022
S&N FIRM CERT. #: C-1875
PROJECT ENGINEER:
THOMAS J. SPAULDING
PROJECT CADD DESIGNER:
IRIS MITCHELL
PROJECT SURVEYOR:
SURVEYOR
e'1 A \ All In
JfICC l
M-3.0
PROJECT NUMBER
979-20

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HORIZONTAL SCALE: 1" = 50'
I M PACT MAP TOTALS
TOTAL PERMANENT OPEN WATER IMPACT (ROADWAY) = 3,407 SF
TOTAL TEMPORARY OPEN WATER IMPACT = 650 SF
(OPEN WATER FILL)
TOTAL PERMANENT WETLAND IMPACT (ROADWAY) = 441 SF
TOTAL TEMPORARY WETLAND IMPACT = 67 SF
(WETLAND FILL)
TOTAL WETLAND CONVERSIONS IMPACT = 3,729 SF
(CLEARED MAINTENANCE)
TOTAL BUFFER IMPACT - ZONE 2 = 435 SF
TOTAL BUFFER IMPACT - ZONE 1 = 423 SF
NOTE:
POND WILL BE DRAINED FOR
CONSTRUCTION. AREA BELOW THE
IMPACT WILL BE ALLOWED TO REVERT L
TO WETLAND CONDITIONS AND WILL Z
REMAIN UNDISTURBED.
THIS DRAWING IS THE PROPERTY OF:
The Spaulding Group, PA
AND IS NOT TO BE REPRODUCED OR COPIED IN WHOLE OR IN PART
WITHOUT PERMISSION FROM THE SPAULDING GROUP, PA. THIS
DRAWING IS NOT TO BE USED ON ANY OTHER PROJECT AND IS TO
BE RETURNED TO SPAULDING & NORRIS, PA, UPON REQUEST.
GRAPHIC SCALE
100 0 50 100 200
( IN FEET )
1 inch = 100 ft.
400
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PROJECT NUMBER
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REFER TO SHEET IM-3.0