20220239 Ver 1_More Info Received_20220408

Strickland, Bev
From: Bob Zarzecki <[e-mail]>
Sent: Friday, April 8, 2022 3:48 PM
To: Cohn, Colleen M; Tommy Craven
Cc: Norton, April R CIV USARMY CESAW (USA)
Subject: [External] RE: Kinsley Subdivision DWR#20220239
Attachments: Impact 1 - Perpendicular Measurement.pdf; 13461_03-26-2018 (136).JPG; 13461_
03-26-2018 (137).JPG
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Colleen:
I've copied the project engineer Tommy Craven on this response and asking him to respond to
questions 2 & 3.
As to question 1, Impact #1 crossing was measured as per the attached exhibit. The head of the
stream bends to the southeast. It is close at 76 degrees, but we felt that it just met the requirement.
The buffer impacts at 0.2403 acres are also under 1/3 acres. I've found that crossing meandering
stream origins like this can be tricky compared to a simply crossing with retained stream sections
above the origin.
Attached are some photos of the stream origin and stream. It was excavated and channelized from
past farming practices. It was probably excavated down to seasonal groundwater to help provide
water to the stock pond below.
One thing to point out here is that we took into consideration the fact that we were crossing at the
origin, and as such located a Primary SCM across the road from it, such that the road essentially acts
like a pond dam/road crossing, even though the actual impoundment structure is outside the road
footprint. The discharge from the Primary SCM will also help to ensure hydrology is maintained to the
retained stream section below. The end result will be a pond (Primary SCM), road, +/- 200 If of
stream, then the farm stock pond, which then drains directly to a culvert under North Main Street.
BOB ZARZECKI
Wetlands Department Manager/Principal
Soil & Environmental Consultants, PA
North Quarter Office Park
8412 Falls of Neuse Road, Suite 104
Raleigh, NC 27615
Office [phone]
Direct [phone]
Mobile [phone]
[e-mail]
Visit us at sandec.com
1

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From: Cohn, Colleen M <[e-mail]>
Sent: Friday, April 8, 2022 2:51 PM
To: Bob Zarzecki <[e-mail]>
Cc: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Subject: Kinsley Subdivision DWR#20220239
Good afternoon,
I am reviewing the above reference application, and some additional information is required to complete the review:
1) Please provide additional details on how Road Crossing Impact #1 meets the definition for a perpendicular
crossing of streams or other surface waters. [15A NCAC 02B .0714(11)(y)]
2) Please provide additional information on the SCM and stormwater discharge entering the proposed culvert
under the Road Crossing in Impact #1. Will large storm events result in high velocity discharge from the pipe and
increase the potential for scouring? Will a rip rap dissipator pad be used at the end of the culvert as it discharges
to the stream?
3) Am I understanding correctly that the 30" pipe between impacts 11 and 12 is to be removed completely and not
replaced? Will hydrology between the two sections be maintained?
Thanks,
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
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
2

LEGEND
JURISDICTIONAL CHANNEL PERMANENT IMPACT
JURISDICTIONAL CHANNEL PERMANENT NO -LOSS
JURISDICTIONAL CHANNEL TEMPORARY IMPACT
DL DISTURBED LIMITS
PERMANENT CHANNEL IMPACT AREA
PERMANENT - NO LOSS CHANNEL IMPACT AREA
TEMPORARY CHANNEL IMPACT AREA
RIPARIAN BUFFER ZONE 2 IMPACT AREA
TEMP RIPARIAN BUFFER ZONE 2 IMPACT AREA
RIPARIAN BUFFER ZONE 1 IMPACT AREA
TEMP RIPARIAN BUFFER ZONE 1 IMPACT AREA
WETLANDS
PERM. IMPACTED WETLANDS
L. f — TEMP. IMPACTED WETLANDS
t
NV®Ri;r
I M PACT #2A TO STREAM
FEATURE B SGM OUTLET
PIPE FROM WET POND ,
r . " r.F" � •�,r � ��
�:, ;�,•" ...: •• � ter"
_
I M PACT #3A TO STREAM N
FEATURE B SGM OUTLET �_n�
PIPE FROM WET POND
DISTURBED , / �/'.�r.,.� /'".'' "F."f'•
I LIMIT l �.�`.��.•�`
. .. ' O
IMPACT #1
ZONE 1 IMPACT: 5,603 SF (0.1286 AG)
ZONE 2 IMPACT: 4,867 SF (0.1111 AG)
PERM. WETLAND IMPACT: 551 SF (0.0122 AG) r.a
PERM. CHANNEL IMPACT: 0.0077 AG (q3 LF) /
IMPACT #2A
ZONE 1 IMPACT: 15 SF (0,0003 AG)
ZONE 2 IMPACT: 604 SF (0.013q AG)
IMPACT #2B
ZONE 2 IMPACT: 375 SF (0.0086 AC)
IMPACT #3
ZONE 1 IMPACT: 451 SF (0.0105 AC)
ZONE 2 IMPACT: 657 SF (0.0151 AC)
IMPACT #3B
ZONE 2 IMPACT: 1,17q SF (0.0271 AG)
IMPACT #21
ZONE 1 IMPACT: 1,591 SF (0.0434 AG)
ZONE 2 IMPACT: 1,163 SF (0.0267 AG)
TEMP. CHANNEL IMPACT: 0.0035 AG (31 LF)
IMPACT #313 TO STREAM
FEATURE B GRADING
FOR WET POND
r r_. "F'
GRAPHIC SCALE
1 " = 00,
f
�r
r
—TOP OF
BANK
r
� rl
f%
IMPACT #2 B TO STREAM:
FEATURE B GRADING
FOR WET POND
IMPA #1 TO STREAM -"
F REB•
TLAND q
OR A ROAD
GROSSING .,-
%y�ry � �rf FF"• /"F
,� :••�. •� "� � " �; Ate, '.r�•�J .•
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! :F`'.F' -'". WETLAND
r
IMPACT #1 "` -`" •-' ;- `, " 1 LF OF
q3 LF OF PERM.' •" ' EMPORARY
CHANNEL IMPACT CHANNEL
IMPACT FOR
y�•Y F ' F �F•' F��
. ,
r,•'`'�,•'f•• •�" Jam' s
SEE RICHLAND
GREEK IMPAGTS
IMPACT 21
TO STREAM FEATURE C
SEWER EXTENSION BY
r rr
OPEN GUT
Asa
ZONE 1 $ ZONE 2
BUFFER IMPACTS
SEWER EASEMENT
30' WIDE TOTAL
—TOP OF STREAM
BAN�1 K
1 �1 00' .
30'
SEWER HAS
BEEN DESIGNED
PERPENDICULAR
TO STREAM
TEMP
J GROSSING,
I COFFER DAM
AND PUMP
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DISTURBED
r LIMITS
UP
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