SWA000171_Email_20221102

Farkas, Jim J
From:Don Sever, PE <[e-mail]>
Sent:Wednesday, November 2, 2022 9:31 AM
To:Farkas, Jim J
Cc:[e-mail]
Subject:\[External\] RE: SWA000171 Faith Charter School
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Jim,

I uploaded the file today onto the repository. I might have inadvertently sent two copies of the same pdf. The pdf has
two sheets to it.

Thanks for the other comments. Regarding your offsite drainage comment, this is something new to us. We have
always had the interpretation that we can design the pond for existing offsite impervious, not proposed impervious. If
the offsite were to add more impervious, then they would have to meet the requirements at that time. To get an
agreement from an adjacent property owner is very difficult at best. In this instance, we feel that the adjacent property
is at its full build out potential since it is a residential home / zoning. Would this response be adequate to you in the
future?

Thanks Don

Donald Sever, PE
Senior Project Manager

Tel: -322-0115 x3239

From: Farkas, Jim J <[e-mail]>
Sent: Monday, October 31, 2022 8:41 AM
To: Don Sever, PE <[e-mail]>
Cc: [e-mail]
Subject: RE: SWA000171 Faith Charter School

Don,

I was looking over the information you provided on 10/10/2022. Everything looks good except for a few small issues:
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Please provide the following:
- 1x electronic copy of the pre- & post-development drainage area plans (Hard copies of these plan sheets were
provided, but the electronic copies do not appear to have been uploaded to our repository.

While not required to be addressed to receive ATC Approval (a technical review/evaluation is not part of the ATC
approval process), the following items were noted during review and may be brought up during Final Approval (other
items may also be brought up at that time):
- Off-site drainage – Per 15A NCAC 02H .1003(3)(b), any off-site areas that are not bypassed around the SCM need
to be accounted for at their full build-out potential. This can either be accomplished by having the property
owners enter into a legal agreement limiting the amount of BUA that can be built in this off-site area or by
assuming that this off-site area is 100% BUA (its full build-out potential).
- 2:1 side slopes – Per General MDC 3, vegetated SCM side slopes cannot be steeper than 3:1 (except on a case-
by-case basis provided that it is demonstrated that the soils and vegetation will remain stable). Plan sheet D-9
indicates side slopes of 2:1 for the SCM (south side of the pond).
- Vegetated shelf width – Per Wet Pond MDC 6, the minimum width of the vegetated shelf is 6 ft. Plan sheet D-9
indicates portions of the vegetated shelf that appear to be less than 6 ft wide (east side of the pond).
- Vegetated shelf plant density – Per Wet Pond MDC 11b, the minimum plant density for the vegetated shelf is 50
plants per 200 sf of shelf area (or 0.25 plants per sf of shelf area). Plan sheet D-9 indicates that the shelf area is
3,450 sf and that 850 plants are proposed \[850 plants / 3,450 sf of shelf area = 0.246 plants/sf < 0.25 plants/sf\].
Plant density is prorated based on the entire shelf area, not just based on the number of 200 sf sections of shelf
area.
- Pond details:
o Forebay – Please ensure that the pond forebay is included on the plans and that the entrance to the
forebay is at a lower elevation than the exit to the forebay (see Figure 5 in Part C-3 of the Design
Manual). NOTE: The main pool sizing criteria for the wet pond do not include the forebay surface
area/volume.
o Cross-sectional view elevations – Some of the elevations shown in the cross-sectional views do not
appear to be correct. For example, the permanent pool surface elevation appears to be shown at 841.0’
while the plan view pond grading appears to be about 30’ lower.
o Outlet drain/structure – Please ensure that the pond outlet drain and/or outlet structure are shown on
the plans. You may also wish to add additional riprap downstream of the emergency spillway if this is
the only means of bypassing flows in excess of the 1.0” design storm.

Hard copies should be mailed to me at the following address:
For FedEx/UPS:
Jim Farkas
512 N. Salisbury Street, Office 640M
Raleigh, NC 27604

For USPS:
Jim Farkas
1612 Mail Service Center
Raleigh, NC 27699-1612

Hand Delivery:
Please reach out to me prior to hand delivering a submission to make sure that I (or someone else in my group)
will be able to receive the submission. Do not leave the package in the foyer with the security guard.

NOTE: Hard copies should not be sent to a Regional Office. Doing so will delay the review process and the
submission package may be lost while being sent from the Regional Office to me in the Central Office.

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Electronic copies should be uploaded at the following location:
https://link.edgepilot.com/s/5aeb174b/6eW3hi2NBUyLjHYBZHMtGQ?u=https://edocs.deq.nc.gov/Forms/SW-
Supplemental-Upload

Since these are really minor things, once I get the hard copies, anything else that may have changed from addressing
these issues, and the documents are uploaded to Laserfiche (Provided everything is still in order), we can issue the
permit without doing another formal review.

Let me know if you have any questions.

Jim Farkas
State Stormwater Engineer
North Carolina Department of Environmental Quality
Office: [phone]
[e-mail]

From: DeBerry, Margie <[e-mail]>
Sent: Monday, October 10, 2022 1:00 PM
To: [e-mail]; [e-mail]
Cc: Khan, Zahid <[e-mail]>; Farkas, Jim J <[e-mail]>
Subject: SWA000171 Faith Charter School

Good afternoon,

We received your post-construction stormwater permit Authorization to Construct (ATC) application for the above
mentioned project on 10/6/2022. Reviews under the fast track permitting process generally take 30 calendar days.
Please upload all documents that you mailed into our office through the link provided below. Be sure to choose the
Central Office as the Primary Contact office.

https://link.edgepilot.com/s/5aeb174b/6eW3hi2NBUyLjHYBZHMtGQ?u=https://edocs.deq.nc.gov/Forms/SW-
Supplemental-Upload

IMPORTANT NOTE: Please ensure that each file is uploaded under its appropriate file type. Additional file types can be
entered into the electronic form by clicking on the “Add Another Post-Construction File Upload” link directly below the
“State Stormwater Information Uploads” section of the form. Please do not upload entire plan sets through this form,
but rather upload the relevant individual sheets under the appropriate file type. Selecting the correct file type ensures
that the files are properly named in the electronic repository and it helps expedite the review process.

Please type in permit #: SWA000171

If you have any questions, please contact Jim Farkas [e-mail] 919-707-3646.

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Thank you,

Margie DeBerry
Environmental Specialist, Division of Energy, Mineral, and Land Resources
North Carolina Department of Environmental Quality
Office: [phone]
[e-mail]

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