HomeMy WebLinkAbout20200930 Ver 1_More Info Received_20200902Strickland, Bev
From: Daniel Kuefler <daniel.kuefler@wetlands-epg.com>
Sent: Wednesday, September 2, 2020 12:50 PM
To: Johnson, Alan
Cc: Len Rindner
Subject: [External] Re: The foundry... Stanly county
Attachments: Oakboro Blue Sky _PCN responses for DWR 090220.pdf
• External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Mff-rt-s—pam@nc.gov
Alan,
We heard back from the engineer today regarding your comments on this project (Oakboro - Blue Sky). To
keep things organized, I've summarized and compiled the explanations / updates in the attached binder. Also
note that they were able to slightly adjust the rail spur alignment to avoid any stream impacts onsite. The total
permanent impacts on site is now limited to 0.079 ac of wetland impacts.
Please let me know if you have any questions with the attached. Also, we've been told that they have equipment
on site, engines running, etc., and are reaching some critical scheduling deadlines - if you are able to take a
look and let us know relatively soon that would be greatly appreciated.
Thanks very much,
Daniel
On Tue, Aug 25, 2020 at 9:32 AM Johnson, Alan <alanJohnson o,ncdenr.gov> wrote:
I believe this is blue sky? Waiting on response. Checking in
Thanks
alan
DWR
WwWon of Water Resources
Alan D Johnson — Senior Environmental Specialist
NC Dept. of Environment & Natural Resources (NCDENR)
Division of Water Resources - Water Quality Regional Operations
610 East Center Ave., Suite 301, Mooresville, NC 28115
Phone: (704) 235-2200 Fax: (704) 663-6040
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 unless the content is exempt by statute or other regulation.
From: Johnson, Alan
Sent: Monday, August 10, 2020 11:34 AM
To: Daniel Kuefler <daniel.kuefler@wetlands-epg.com>; Len Rindner (len.rindner@wetlands-epg.com)
<len. rindner@wetlands-ep g. com>
Subject: The foundry... Stanly county
What is up with this outfall. If it is overland runoff, then it should be allowed to run
overland. Should a french drain be more appropriate to discharge into the weltnad? Is the 36
inche culvert going to be removed?
5
i- * PA *1 ' rim 41 F1
M .. +2 F7, ' - 12.4 N
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RIP RAP APRON
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s 'norm
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HOW are they going to avoid impact more of the wetland if the fill is in the wetland. How are
they going to ensure sediment does erode into the wetland if it is on the wetland.... immediate
matting ... high hazard silt fence??
.XiST. 70P OF
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FLOW DlkM
OVEWI ENT
STREAM
LF)
} Mol AXW
- +
TEVPOWY WYE'TtAbO IMPACT
3
DWR
Dlvislon of Water Resources
Alan D Johnson — Senior Environmental Specialist
NC Dept. of Environment & Natural Resources (NCDENR)
Division of Water Resources - Water Quality Regional Operations
610 East Center Ave., Suite 301, Mooresville, NC 28115
Phone: (704) 235-2200 Fax: (704) 663-6040
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 unless the content is exempt by statute or other regulation.
Daniel Kuefler
Wetlands & Environmental Planning Group
Leonard S. Rindner, PLLC
www.wetlands-epg.com
336.554.2728
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Reviewer Comment #1: What is up with this outfall? If it is overland runoff, then it should be allowed to
run overland. Should a French drain be more appropriate to discharge into the wetland? Is the 36 inch
culvert going to be removed?
Response: The existing culvert is to remain and subsequently the riprap apron has been designed to
decrease velocity from the bypass system, which handles a very large area of runoff, and therefore
prevent erosion and reduce the likelihood of widening any existing, natural flow patterns, and
additionally ensure proper drainage through the existing culvert.
Also note that BMP 1 has been relocated so the outlet for that pond has moved downstream
accordingly. The BMP relocation from the small sand filter at the north end of the stream to the
southern end (larger Wet BMP) was designed for additional growth and additional lay down / storage
yard. Also it is important to note that this was an approved location for a temporary sediment basin so
the conversion into a permanent BMP will actually reduce the overall site disturbance area in the sense
that this eliminates the need to build a temporary basin and fill it then dig out the permanent BMP in a
new location to treat the same proposed runoff.
M . w!a' 214-56j
1
MP q*saPP OR
4,,,-L F7 W-11 Fr
Li7AC1Ei l VAR AM A"&
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SAI Ktt
IM.s.1PON ilt IF
Reviewer Comment #2: How are they going to avoid impact more of the wetland if the fill is in the
wetland? How are they going to ensure sediment does erode into the wetland if it is on the
wetland.... immediate matting... high hazard silt fence??
Response: We ensured a minimum of 10ft clear zone for construction and now show the installation of a
sediment control fence/super silt fence along the entire stretch of stream and wetlands in that area.
Matting can also be added if DRW requires both controls.
III TOPOFFLOW Djk5crd
`+'
STREAM A
boundary??
BANS TYP i
TEMPORARY WF1LANOWPACt
C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑X Wetlands ❑ Streams — tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Temporary T
2b.
Type of impact
2c.
Type of wetland
2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f.
Area of
impact
(acres)
W1 P
Fill
Headwater Wetland
No
Corps
0.034
W2 P
Choose one
Headwater Wetland
No
Corps
0.003
W3 P
Choose one
Headwater Wetland
No
Corps
0.011
W4 T
Choose one
Headwater Wetland
No
Corps
0.012
W5 T
Choose one
Headwater Wetland
No
Corps
0.003
W6 P
Choose one
Headwater Wetland
No
Corps
0.31
2g. Total Wetland Impacts:
0.094
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary (T)
3b.
Type of impact
3c.
Stream name
3d.
Perennial (PER) or
intermittent (INT)?
3e.
Type of
jurisdiction
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
feet)
S1 -
Choose one
-
S2 -
Choose one
-
S3 -
Choose one
-
S4 -
Choose one
-
S5 -
Choose one
-
S6 -
Choose one
-
3h. Total stream and tributary impacts
3i. Comments:
Page 4 of 10
PCN Form — Version 1.4 January 2009
\ `� ` ✓ INTERMITTENT
STREAM M\ PROJECT
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01
i. INTERMITTENT �- ��/ll l 1 f
WETLAND AW�i STREAM A� `� �1/ ���1 /IY� S l� '1
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/ ((0.96 r /, A WETLAND E\\ ��(\ �� ] ) PROJECT
�(0.007AC) :\\\��-� , --'" )\ ��j BOUNDARY
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LL
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SCALE: I" = 700' 0 U) a 0�
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1��BOUNDAARY @�A'�1 \� ) �'� 1 <�-y0�� /i WETLAND
a/ (� �� (NO PROPOSED
IMPACT)
PROJECT"
BOUNDARY u3
PERMANENT WETLAND
IMPACT (0.034 AC) V j '1 ��� 1 (TYP) s E
��G�/� I I(SEESHEETS 3&4) boo
PERMANENT WETLAND IMPACT (0.003 AC)
TEMPORARY WETLAND IMPACT (0.003 AC)` —
l
/ (SEE SHEET 5)
_�_65' DUKE POWER
\� \� -(DB 228-131, 95) / """ ./`�J✓ / / /�
— 150' DUKE POWERETLAND N /
-(DB 209-694,216-35) \ W,
1
\l J '� I� I I I� \� � ��` � � ��j)`\, ii T � �_� ��„✓� � J / �J^I) (NO PROPOSED IMPACT)_
PERMANENT WETLAND IMPACT (0.011 AC)
TEMPORARY WETLAND IMPACT (0.012 AC) / / UINTERMITTENT STREAM O /
(\\SHEET 5) POWER R/W `�\ =- (NO IMPACT PROPOSED) C r f
(DB 315-619) `J�\\V -(l � '.�" '/ / ,`/1
\ PROP. SANITARY 1 1 ...\�\ ` �' % ��
i( SEWER (TYP)
WET
115
i IF
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\
\\\ \�# 1 o pJ PROJECT
1'a OFF"� _ BOUNDARY
��I 1 t >� FOUNDRY & 1 / (TYP)
1 i
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PERMANENT
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% (0.031 AC) � /�/ / `-�'`. ® 1 a / / O 132' DUKE \�♦ ����V f� �' -6
I�I� 1///( POWER R/W I �• /� j�, n — Q SHEET 6 wer"
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�PJ'�/���/�\�J✓ ► // { / r // //i/ l r%J I / \ROJECT
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PROP. SANITARY 77 V O O <
SEWER (TYP) I — j ,� Y W
68' DUKE FUTURE SEWER / f / (SR I8 AD / �l �j
POWER R/W V �PUMP STATION - //// f )_�
T(DB228197) /fI'I �� , �j m
LEGEND:
EXISTING WETLANDS c9
1 W
(0.838 AC) z
PERMANENT WETLAND o 0o No
_ N
n
F
I I \\ J IMPACT (0.079 AC) z N p _o
�\ TEMPORARY WETLAND o LL
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/ \ 350' 0' 350' 7OO' 400� _ _ _ _ 21
STREAM CENTERLINE m
.' SCALE: 1 = 700 ¢ � a N N
65 DUKE POWER R/W v/
_ //✓�� 150' DUKE POWER R/W /
(DB 209-694,216-35)
HW-111
/ PROP. STORM 0661,
0 DRAINAGE (TYP) ,p
4
/ 60" RCP
RIP RAP APRON
La = 38 FT, W = 44 FT
dsa = 1.2 FT, T = 32.4 IN
�/ IMPACTED WETLAND AREA
ADDITIONAL RIP RAP APRON
X X
72"a
cp
PERMANENT \
WETLAND IMPACT
\ \ \\ \ (WETLANDB-TO \, 49' BE FILLED) \ \I \150' DUKE POWER R/WX� J l�
(DB 209-69 \216I35) I ��••77// I /1 0
I49' DUKEI \
�POWERR/W \
(DB 315-619) � \
LFGFNI)-
EXISTING WETLANDS
(0.838 AC)
PERMANENT WETLAND IMPACT
(0.079 AC)
TEMPORARY WETLAND IMPACT
(0.015 AC)
STREAM CENTERLINE
cL6,- NCDOT SPECIAL SEDIMENT
,A CONTROL FENCE #1606.1
UA
DI-130
36" RCP
536
=EXIST. TOP OF
— BANK (TYP.) 526
1
ISTING
'CULVERT 520
\� 520
—WETLAND D — —
(0.2AC)-�
INTERMITTENT
STREAM A /
� J
I I NCDOT SPECIAL SEDIMENT —
/ CONTROL FENCE #1606.1I
50' 0' 50' 100' 200'
SCALE: I" = 100'
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545
545
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TA:10+87.89
INV. IN: 524.50 (JB-110)
INV. IN: 524.50 (HW-111)
INV. OUT: 523.50 (FES-113)
j_'JB-1
PROP.
GRADE
540
540
HW-111
STA: 0+00.15
INV. OUT: 526.00 (JB-112)
FES-113
STA: 1 +71.03
535
INV. IN: 523.08 (JB-112)
535
530
530
Z
O
u
RIP
La =
d50 =
RAP
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1.2
APRON
W
FT,
= 44
T = 32.4
FT
IN
525
EXIST. GRADE
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525
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87.73 LF OF
60" RCP @ 1.71 %
515
515
CL O U
N
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SCALE:
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I" = 6' V 3' 0. 3'
2+00 3+00
b' 12' SCALE: I" = 60' H 30' 0. 30' 60' 120'
DI-128
/
\, �,p
DI-129
i
PERMANENT
\
WETLAND IMPACT
��p (0.003 AC)
PERMANENT
WETLAND IMPACT
NCDOT SPECIAL SEDIM T
DI-131 (0.011 AC)-
CONTROL FENCE #1606.1
DI-130
MW�36RCP
36' RCP
I= PROP. SANITARY
SEWER (TYP)\
I
/ DI-132 \
i
42" RCP
518
EXIST. TOP OF / ' -0 4 _ i — 515
BANK (TYP.) FL DIREC°TI _
_TEMPORARY�`—
INTERMITTENT \ �� ��3 i _ _--WETLAND IMPACT' �� -EXIST. TOP OF
f - STREAM A� \ TEMPORARY �\ `\
�_ —WETLAND IMPACT (0.012 AC) \�— ��BANK (TYP.)
530=� _ _ _WETLAND D /
(0.2 AC)
0 —EXIST. STREAM /
NCDOT SPECIAL SEDIMENT
CONTROL FENCE #1606.1
i�ff h
I
530 ,5c�
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OD
Q W
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7
Z
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F
Z
O
N W
N p O
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o
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50' 0' 50' 100' 200'
F
m o
3k
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SCALE: I" = 100'
¢
16
(' a
U'"'
U)
a
PROP. SANITARY /
SEWER (TYP) gS
yS
FOUNDRY &
SUPPORT yc� `:::;•'•
�
14
g5 PERMANENT
/ WETLAN(MPACT
0 31 AC)
5g yA� (WETLAND K - TO BE
i FILLED)
g PROP. SANITARY
SS / SEWER (TYP)
DI-140
y30
DI-134
P
60 RCP
Rca l
` 68' DUKE I\ \
I N� POWER RAN \ \\
WET POND #2
53a 508 Z
520 J
526 / Q >
516 � �
518 a Q .0
514 0 - 00
LL
�ECTLON
'� T� �_ — 505HW-4 _� O s_?
WETLAND E. �� EXIST. STREAM r /
\05AC) \\\ — CENTERLINE y\� ✓\�
WETLAND F \ \ \ \\ �J \ Y (0
EXIST. TOP OF ^ m O
\ (0.02 AC) \ _PERENNIAL -� V BANK (TYP.) _ - v� / % \
S?\\ --STREAM C ✓ G-- 9.f L Q L
p ' \(2,200 LF) /� == 5 //NCDOT SPECIAL SEDIMENT= — \�� d O ()
51 -� CONTROL FENCE #1606.1
LEGEND: RIP RAP APRON EXIST. TOP OF w
BANK (TYP.) m
EXISTING WETLANDS Ledso F.25 4 IN, T 1 6.75FN Z
�.- - . • W .--.- (0.838 AC) Q
z
PERMANENT WETLAND IMPACT Y
U °4
rn ma er`l
0
z .e
gM
N �
F N p
z O
O N II
F o �� ALL
50' 0' 50' 100' 200' 0 m o O
SCALE: I" = 100' a- ¢
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