20180001 Ver 1_Stormwater Info_20180426

Strickland, Bev
From: Mcdaniel, Chonticha
Sent: Thursday, April 26, 2018 10:06 AM
To: 'Aldridge, Jon'
Cc: Wingo, Stan; Roth, Kelly; Mattingly, Jessica
Subject: RE: [External] RE: Aberdeen Transmission Headquarters
Jon,
That's fine and I have no further comment regarding the proposed riprap berm. Thank you!
Chonticha McDaniel
401 Stormwater Engineer
401 & Buffer Permitting Branch
Division of Water Resources
Department of Environmental Quality
919-807-6379 office
chonticha.mcdaniela-ncdenr.gov
Mailing Address - 1617 Mail Service Center, Raleigh, North Carolina, 27699-1617
Street Address - 512 N. Salisbury St, Raleigh, North Carolina, 27604
Notting Compares
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From: Aldridge, Jon [mailto:[e-mail]]
Sent: Tuesday, April 24, 2018 3:43 PM
To: Mcdaniel, Chonticha <[e-mail]>
Cc: Wingo, Stan <[e-mail]>; Roth, Kelly <[e-mail]>; Mattingly, Jessica
<[e-mail]>
Subject: RE: [External] RE: Aberdeen Transmission Headquarters
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Chonticha,
I've added a riprap berm between the inlet and outlet to act as a pretreatment device and increase the hydraulic
retention time in the basin (see attached sheets). Let me know if this satisfies your concern and will finalize these plans
for submittal.
Thanks in advance.
Jon Aldridge, PE I Senior Project Manager, Water Resources + Infrastructure

McAdams
3436 Toringdon Way, Suite 110, Charlotte, NC 28277
office 704. 527. 0800 x316 I direct 980. 729. 6066 1 mobile [phone] [e-mail]
www.mcadamsco.com I linkedin I twitter I instagram I join our team
MMCADAMS
creating experiences through experience
From: Mcdaniel, Chonticha <[e-mail]>
Sent: Tuesday, April 24, 2018 11:48 AM
To: Aldridge, Jon <[e-mail]>
Cc: Wingo, Stan <[e-mail]>; Roth, Kelly <[e-mail]>; Mattingly, Jessica
<Mattinelv(@mcadamsco.com>
Subject: RE: [External] RE: Aberdeen Transmission Headquarters
Jon,
I'm aware of that and it's ok (for me) if you want to skip the Supplement form. However, I still think we need some sort
of an O&M agreement since the pond is a part of this project and should be maintained so that it can function the way it
was designed. You can modify the languages on the standard O&M form so that it will fit your need or you can come up
with your own O&M plan/agreement.
Thank you!
Chonticha McDaniel
401 Stormwater Engineer
401 & Buffer Permitting Branch
Division of Water Resources
Department of Environmental Quality
919-807-6379 office
chonticha.mcdaniela-ncdenr.gov
Mailing Address - 1617 Mail Service Center, Raleigh, North Carolina, 27699-1617
Street Address - 512 N. Salisbury St, Raleigh, North Carolina, 27604
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Aldridge, Jon [mailto:[e-mail]]
Sent: Tuesday, April 24, 2018 11:27 AM
To: Mcdaniel, Chonticha <[e-mail]>
Cc: Wingo, Stan <[e-mail]>; Roth, Kelly <[e-mail]>; Mattingly, Jessica
<[e-mail]>
Subject: RE: [External] RE: Aberdeen Transmission Headquarters

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Ms. McDaniel,
Before I pull this all together, I want to insure we get you everything you need. The dry pond as designed is proposed as
a means to provide peak flow attenuation to protect downstream infrastructure in Log Cabin Lane and not to meet any
State or local stormwater management requirements as none are required. That being said, is there a need to provide a
Supplement and O&M for the facility? Thanks in advance. Please feel free to give me a call to discuss.
Thanks,
Jon Aldridge, PE I Senior Project Manager, Water Resources + Infrastructure
McAdams
3436 Toringdon Way, Suite 110, Charlotte, NC 28277
office 704. 527. 0800 x316 I direct 980. 729. 6066 1 mobile [phone] [e-mail]
www.mcadamsco.com I linkedin I twitter I instagram I join our team
T]McADAms
creating experiences through experience
From: Roth, Kelly
Sent: Tuesday, April 24, 2018 10:44 AM
To: Aldridge, Jon <[e-mail]>; Mattingly, Jessica <[e-mail]>
Cc: Wingo, Stan <[e-mail]>
Subject: FW: [External] RE: Aberdeen Transmission Headquarters
Jon/Jessie-
Can you please address Chonticha's comments below?
Thank you!
-Kelly
From: Mcdaniel, Chonticha <[e-mail]>
Sent: Tuesday, April 24, 2018 10:08 AM
To: Roth, Kelly <[e-mail]>
Cc: Turlington, Chad <[e-mail]>
Subject: RE: [External] RE: Aberdeen Transmission Headquarters
Kelly,
Thank you for the additional information. Please download and fill out the Supplement EZ form and the O&M EZ form
from our website: https://deg.nc.gov/about/divisions/energy-mineral-land-resources/energy-mineral-land-permit-
guidance/stormwater-bmp-manual.
Also, I have one concern regarding the location of the dry pond inlet and outlet. It seems to me that their current
locations may be prone to short circuiting unless baffles will be placed in the pond to lengthen the flow path.

Chonticha McDaniel
401 Stormwater Engineer
401 & Buffer Permitting Branch
Division of Water Resources
Department of Environmental Quality
919-807-6379 office
chonticha.mcdaniela-ncdenr.gov
Mailing Address - 1617 Mail Service Center, Raleigh, North Carolina, 27699-1617
Street Address - 512 N. Salisbury St, Raleigh, North Carolina, 27604
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North Carolina Public Records Law and may be disclosed to third parties.
From: Roth, Kelly [mailto:[e-mail]]
Sent: Monday, April 23, 2018 2:42 PM
To: Mcdaniel, Chonticha <[e-mail]>
Cc: Turlington, Chad <[e-mail]>
Subject: RE: [External] RE: Aberdeen Transmission Headquarters
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Chonticha-
Please see the sharefile link below for the additional stormwater information you requested for the Aberdeen
Transmission Headquarters project. The folder at this link contains a memo from the stormwater engineer addressing
your questions, a stormwater impact analysis which includes the design calcluations, and design drawings for the
proposed stormwater facility.
https://mcadamsco.sharefile.com/d-sl58fe3ab7eO43cda
Please let me know if you need anything else.
Thank you,
Kelly Roth I Environmental Consultant, Water Resources + Infrastructure
McAdams
2905 Meridian Parkway, Durham, NC 27713
office 919. 361. 5000 x210 I direct 919. 287. 0716 1 [e-mail]
www.mcadamsco.com I linkedin I twitter I instagram I join our team
29MCADAMS
creating experiences through experience

From: Mcdaniel, Chonticha <[e-mail]>
Sent: Thursday, January 25, 2018 12:31 PM
To: Roth, Kelly <[e-mail]>
Cc: Turlington, Chad <[e-mail]>
Subject: RE: [External] RE: Aberdeen Transmission Headquarters
Kelly,
Here are the information we need that I cannot find in the report:
1) A discussion on how the project will not cause degradation of downstream surface waters when considering the
volume and velocity of the increased flows and the current size/condition of the receiving stream.
2) Calculations to show that flow (cfs) from every discharge point will be non-erosive to both the land surface and
the receiving stream during the peak flow from the 10 -year storm event.
3) Calculations to demonstrate that for any discharge points proposed to increase flow rates and volume, the
structural stability of the receiving stream will not be compromised.
4) Designed drawings (both aerial and profile views showing the actual designed dimensions) and detailed
calculations of any proposed detention system (i.e. level spreaders). Any vegetated conveyances (if provided)
should also be depicted on the drawings.
I hope this help. Let me know if you have more questions. Thank you!
Chonticha McDaniel
401 Stormwater Engineer
401 & Buffer Permitting Branch
Division of Water Resources
Department of Environmental Quality
919-807-6379 office
chonticha.mcdaniela-ncdenr.gov
Mailing Address - 1617 Mail Service Center, Raleigh, North Carolina, 27699-1617
Street Address - 512 N. Salisbury St, Raleigh, North Carolina, 27604
--:,'�othlnq Compares:
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North Carolina Public Records Law and may be disclosed to third parties.
From: Roth, Kelly [mailto:[e-mail]]
Sent: Wednesday, January 24, 2018 8:56 AM
To: Mcdaniel, Chonticha <[e-mail]>
Subject: FW: [External] RE: Aberdeen Transmission Headquarters
CAUTION: External email. Do not click links or open attachments unless verified. Send all suspicious email as an attachment to
[e-mail].
Chonticha-

Please see my message to Chad below regarding DWR's request for a stormwater management plan for the Aberdeen
Transmission HQ project.
Thank you.
-Kelly Roth
From: Turlington, Chad [mailto:[e-mail]]
Sent: Wednesday, January 24, 2018 7:19 AM
To: Roth, Kelly <[e-mail]>
Subject: RE: [External] RE: Aberdeen Transmission Headquarters
Kelly,
The review of the stormwater portion of the 401 application is done by Chonticha McDaniel in the Central Office. Please
contact her to discuss your stormwater related questions. Thanks!
From: Roth, Kelly [mailto:[e-mail]]
Sent: Tuesday, January 23, 2018 5:18 PM
To: Turlington, Chad <[e-mail]>
Subject: [External] RE: Aberdeen Transmission Headquarters
CAUTION: External email. Do not click links or open attachments unless verified. Send all suspicious email as an attachment to
[e-mail].
Chad -
Our stormwater folks have prepared the attached Stormwater Impact Analysis for this project. Before I send hardcopies,
can you please tell me whether this SIA has a sufficient level of detail for your needs? If not, could you please let me
know what information is missing and/or provide an example of a stormwater management plan with the appropriate
level of detail?
Thank you.
-Kelly
From: Turlington, Chad [mailto:[e-mail]]
Sent: Tuesday, January 23, 2018 2:30 PM
To: Roth, Kelly <[e-mail]>
Cc: 'Lastinger, James C CIV USARMY CESAW (US)' <[e-mail]>; Mcdaniel, Chonticha
<[e-mail]>
Subject: Aberdeen Transmission Headquarters
Please see attached Request for Additional Information.
Chad Turlington
Environmental Specialist
Division of Water Resources — Water Quality Regional Operations Section, Fayetteville Regional Office
North Carolina Department of Environmental Quality
910-433-3320 office
chad.turlington(cDncdenr.gov

225 Green Street
Suite 714
Fayetteville, NC 28301
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.