20200096 Ver 1_More Info Received_20200203

Strickland, Bev
From: Scott Burwell <[e-mail]>
Sent: Monday, February 3, 2020 4:57 PM
To: Johnson, Alan
Cc: Ben Yarboro; Nathan Sawyer; Jon Swaim
Subject: [External] Plato Lee Industrial Site
Attachments: Stormwater Approval Letter for Shell 3.pdf, 19.00153 - C-Site Plans-C-101 Overall Site
Plan.pdf
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]
Alan,
Hope you are well! I wanted to follow up from your email last week to outline our design considerations which may help
clarify your concerns:
In regards to the comment about the wetland to be avoided, due to the future expansion of the first Shell Building and
providing 30' of clearance around the building for a fire truck loop, as well as the other future pad site for another
100,000 SF of building plus parking/fire loop, this pushed our toe of slope out for the 29 linear feet of stream impact and
.03 acres of wetland impact. We attempted to lower the site to help avoid this situation; however, due to the slope
from Plato Lee, the driveways into the site were becoming too steep for large truck maneuvers to the loading dock
areas. The area for the sediment basin that impacts the wetland is actually to be installed to also account for
disturbance for the future wet pond that will be the BMP to meet stormwater requirements for the future pad site on
the northern portion of the site. The gap between the toe of slope and silt fence will be completely disturbed with the
future wetpond based on our preliminary sizing with proposed impervious areas. The current wetpond shown will cover
both the current Shell Building plus the future expansion to the north, attached is our stormwater approval from the City
of Shelby for this set up. I have also attached the overall site plan for reference to help orient the various areas.
In regards to the slope and buffers, the unnamed tributary to Beaverdam Creek is a Class C - NC Surface Water with no
known buffer requirements. While the stream is deeply incised, it does have mature and dense riparian vegetation along
both banks. We included an undisturbed buffer for permanent grading along the stream banks to prevent off -site
sedimentation and to aid in preventing further erosion. After several design modifications it was determined that a 25
foot buffer was the maximum allowable due to site limitations and the necessity for stormwater BMPs to the east of the
proposed development (currently proposed and future). The only disturbance within the self-imposed buffer is for silt
fence required for the sewer line extension from the south of the site to the first shell building shown on the site plan
and the sewer line stream crossing as shown in the PCN documents. We are also proposing that for every 10 feet of
vertical fill to be installed during the erosion control phase of the project, that North American Green S75 Matting be
installed with appropriate seed mix applied to stabilize slopes that may erode.
Hope this helps clarify the design decisions that went into our current plans to try and minimize the impacts we have as
much as possible. Feel free to give me a call if we need to discuss further.
Thanks!

MI
Scott Burwell, PE
Project Manager
McGill Associates, P.A.
Asheville, NC 28801
T 828-252-0575
C 828-707-6749
scott. burwell(cDmcgillassociates.com
mcgillassociates.com
We launched a refreshed brand. Please note email / web address changes above.

NORTH CAROUNA � ~
Post Office Box 207 - Shelby, NC 28151-0207
January 31, 2020
Nathan Sawyer
McGill Associates, P.A.
55 Broad St.
Asheville, NC 28801
RE: Stormwater Approval for Shell Building #3- 620 Plato Lee Rd.
Dear Mr. Sawyer:
On January 22, 2020 the City of Shelby Stormwater Division received a Stormwater
Management Permit Application for the subject project. Staff review of the plans
stamped by Scott Burwell on 1-6-20, specifications, and calculations has determined
that the project, as proposed, will comply with the Stormwater Regulations as
defined in the City of Shelby Phase II Stormwater Ordinance and North Carolina
General Assembly Session Law 2006-246. In the review, staff determined the
proposed stormwater system and wet pond meets all MDCs for wet ponds laid out in
the NCDEQ Stormwater Design Manual.
If you have any questions or concerns regarding this project, please contact Tyler
Brooks at [phone] or via email at [e-mail].
Respectfully,
I
Tyler Brooks
Stormwater/Engineering Coordinator
www. 1 coni

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PROJECT INFO
PARCEL AREA: 47.4AC
DISTURBED AREA: 23.3AC
PERVIOUS AREA: 14.2AC
IMPERVIOUS AREA: 9.1 AC (INCLUDES FUTURE BUILDING AND
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Date Issued: JANUARY 6, 2020
Revisions:
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OVERALL SITE PLAN
Sheet Title
CONSTRUCTION DOCUMENTS
C-101
WHN ARCHITECTS hereby reserves their common law copyright
and other property rights in these plans, ideas and designs.
These plans, ideas and designs are not to be reproduced,
changed or copied in any form or manner whatsoever, nor are
they to be assigned to any third party without first obtaining
the express written permission from WHN ARCHITECTS. Written
dimensions on these drawings shall have precedence over scaled
dimensions. Contractors shall verify and be responsible for all
dimensions and conditions on the job and WHN ARCHITECTS
must be notified in writing of any variations from the
dimensions, conditions and specifications on these drawings.
MI
SCALE 1 " = 2000'