20231321 Ver 1_Pre-App Meeting Emails_20230911

Baker, Caroline D
From: Thomas, Zachary T
Sent: Tuesday, September 12, 2023 3:25 PM
To: Becker, Jonathan W.
Cc: Baker, Cameron J.; Talma, Kobi; US - 31405543.02 Crenshaw Stormwater
Improvements; Sullivan, Caleb P.; Goss, Stephanie
Subject: RE: [External] Town of Wake Forest - Crenshaw Stormwater Improvements
Attachments: Crenshaw Stormwater Improvements_60pct Plans_2023-08-14.pdf; Crenshaw Site 5-6
Map.pdf, Site 5-6 Photos _Optimized.pdf, RE: [External] Allowable Buffer Impacts for
SCM Retrofit - Town of Wake Forest
HiJonathan,
I spoke with Stephanie regarding your stormwater and bank stabilization projects. Please see our response below:
• Site #5:
o It appears that this would fit under existing use/existing stormwater conveyance and as long as you stay
within the existing footprint, you would not need a buffer authorization from DWR.
o As long as you do not trigger any of the thresholds in the corresponding GC4239 for the NWP3, mainly
staying under the 40 linear feet impact (Item b), then you should be covered by the GC and not need
written 401 authorization from DWR.
o Please make sure to include information about this site in your PCN application for Site #6 if you plan to
do the work at the same time to help the review understand the impacts (design, non -notifying, etc.)
• Site #6:
o It appears that this one would need written buffer authorization from DWR for the bank
stabilization/protection of existing structures (15A NCAC 02B .0714(11)(s)& (dd)) and a NWP13
corresponding 401 for the stream relocation/restoration portions of the project.
o Please make sure to include information about Site #5 in your PCN application (design, non -notifying,
etc.)
We can consider your pre -file notification date in April when you first notified Stephanie/me via email. Please
make sure to send a notification email to the [e-mail] to meet the requirement and include a
copy as part of your application.
If you have any additional questions or would like to discuss further, please let me know and I can set up a TEAMS
meeting to discuss.
Thank you,
Zach Thomas
Environmental Program Consultant, Division of Water Resources
North Carolina Department of Environmental Quality
Office: [phone]
[e-mail] "Please note my new email address"
Raleigh Regional Office
1628 Mail Service Center
Raleigh, NC 27699-1628

Email correspondence to and from this address is subject to the North Carolina Public Records Law
and may be disclosed to third parties.
From: Becker, Jonathan W. <[e-mail]>
Sent: Monday, September 11, 2023 9:41 AM
To: Thomas, Zachary T <[e-mail]>
Cc: Baker, Cameron J. <[e-mail]>; Talma, Kobi <[e-mail]>; US - 31405543.02 Crenshaw
Stormwater Improvements <[e-mail]>; Sullivan, Caleb P. <[e-mail]>
Subject: [External] Town of Wake Forest - Crenshaw Stormwater Improvements
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Good Morning Zach,
I hope you enjoyed the weekend. I wanted to follow up regarding a project we discussed with you and Stephanie via
email back in April. I have attached that older correspondence for reference.
As part of that project, the Town of Wake Forest had originally identified five existing outfall locations to be improved
(sites #1- #5) and one segment of stream requiring restoration (site #6). At this time, we are planning to pause the
design for sites 1-4 and are moving forward with 5 and 6 only. We are working to expedite our design schedule, and
have been talking with Dicky Harmon (USACE) about the best way to permit these sites. Below is a quick summary of
each:
• Site #5 is located in the backyard of 1301 Clatter Ave. and is an approximately 50LF long ephemeral tributary
requiring reconstruction along with drainage outfall improvements. The tributary receives flow from three dual -
grate reverse flow inlets.
o The existing dual -grate structures, sections of existing pipe connecting the structures, and the existing
riprap lined channel will be removed and replaced with a modified regenerative step pool storm
conveyance (RSPSC).
o Nationwide Permit 3 — Below the threshold for notification
Site #6 is located in the backyard of 922 Jones Wynd and is an approximately 220LF long, perennial stream,
requiring minor relocation and comprehensive bank stabilization. Site 6 is located <300 feet downstream of
proposed work at Site #5.
o The primary objective at site #6 is to restore the stream segment into a stabilized and healthy state and
in doing so will mitigate homeowner concerns as the stream migrates. As evident in the attached
pictures, the bank erosion is rapidly approaching the home's foundation and support columns for the
rear deck. Due to the safety concerns and potential loss of property, Site #6 has become the highest
priority for the town, and has been put on an expedited design schedule.
o Nationwide Permit 13
Based on initial conversations with Dicky, it sounds like he would only expect submission of a 404 application for Site
6. However, I would like to talk with you about the expectations for the 401 permit and buffer authorization. I am
wondering if the impacts would be considered "allowable" and if any kind of permit submission would be required. If
authorization is required, I want to discuss how to handle that with the two sites combined.
Would you be available for a quick call in the next day or two?

Thanks,
Jon
am
Jon Becker, PE
Raleigh Water Resources Lead
Jon.Beckel( wsp.com
T+ 1 919-836-4056
WSP USA Inc.
434 Fayetteville Street, Suite 1500
Raleigh, North Carolina 27601
wsp.com
•
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