SW6221202_Email_20230727 (2)

Peck, Kaitlin
From:Farkas, Jim J
Sent:Thursday, July 27, 2023 11:50 AM
To:John Oglesby
Cc:Robert Sanders
Subject:RE: \[External\] RE: SW6221201 Ample Storage
John,

Supplement-EZ Form, Wet Pond Page, Line 37 – The provided value, 2.5” orifice diameter, does not correspond to the
revised plans/calculations (showing a 2.0” orifice diameter).
Supplement-EZ Form, Wet Pond Page, Line 40 – The provided value, 2.3 day drawdown time, does not correspond to the
revised calculations (showing a 3.18 day drawdown time).

With your permission, I can revise the hard copy of this form that was provided to our office today (changing Line 37 to
2.0” and Line 40 to 3.18 days to correspond to the provided calculations). Please make sure that the electronic copy is
corrected before uploading (if you have already uploaded the electronic files for this submission, you can just correct
and re-upload this page of the form and I will add it to the otherwise correct one that is in there).

Once the electronic copies get uploaded and get QA/QC’d by us, we can issue the permit for this project as there are no
other outstanding comments.

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

From: Farkas, Jim J
Sent: Thursday, July 27, 2023 9:05 AM
To: John Oglesby <[e-mail]>
Cc: Robert Sanders <[e-mail]>; Peck, Kaitlin <[e-mail]>
Subject: RE: \[External\] RE: SW6221201 Ample Storage

Sorry for not getting back to you sooner. The temporary pool is set by the invert of the lowest bypass invert (in this case,
the bypass weir at elevation 193.7’). The minimum required treatment volume may pond to a shallower elevation
(193.36’ per the calculations), but the design volume is based on the temporary pool surface elevation (which is based
on the invert of the lowest bypass).

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We will be in the office today & Kaitlin will be in tomorrow. Please reach out to Kaitlin to arrange the submission drop
off.

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

From: John Oglesby <[e-mail]>
Sent: Thursday, July 27, 2023 8:58 AM
To: Farkas, Jim J <[e-mail]>
Cc: Robert Sanders <[e-mail]>
Subject: \[External\] RE: SW6221201 Ample Storage
Importance: High

CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.

Good morning, will you be in the office today or tomorrow to receive the resubmittal? Did you or someone in your office
see my message below?

Thank you,
John

John F. Oglesby, PE

[phone] mobile
[e-mail]

csd-engineering.com

It is the professional opinion of CSD Engineering that this electronic information provides design information current as of the date of its release. It is the
responsibility of the receiver of this document to examine it and determine whether it is the information requested. In the deliverance of this file we make
no promise as to the usability or compatibility of this file. This file shall not be considered a certified document.

From: John Oglesby
Sent: Wednesday, July 12, 2023 4:00 PM
To: Farkas, Jim J <[e-mail]>
Cc: Robert Sanders <[e-mail]>
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Subject: RE: SW6221201 Ample Storage
Importance: High

Dear Jim,

Thank you again for the review and providing the final comments below. I noticed that the temporary pool was
calculated at 193.36 and this is consistent across all calculations, narrative, and plans. However, the O-M-EZ form is
reporting 193.7. Based on the checking and rechecking of calculations, may I just update the O-M-EZ form and resubmit
that? Also, I have done as recommended and resized the drawdown to 2.0” after analyzing the treatment volume. I will
submit the following based on this revision:

 Revised O-M-EZ and SuppEZ forms (from 193.70 to 193.36)
 Revised narrative reporting drawdown volumes and times.
 Revised drawdown calculation for design and treatment volumes.
 Revised plan sheet C4.2 (from 2.5” orifice to 2.0” orifice)

Please advise if this will be sufficient for the final approval. Also, will you be available tomorrow for hand delivery?

Regards,
John

John F. Oglesby, PE

[phone] mobile
[e-mail]

csd-engineering.com

It is the professional opinion of CSD Engineering that this electronic information provides design information current as of the date of its release. It is the
responsibility of the receiver of this document to examine it and determine whether it is the information requested. In the deliverance of this file we make
no promise as to the usability or compatibility of this file. This file shall not be considered a certified document.

From: Farkas, Jim J <[e-mail]>
Sent: Wednesday, June 28, 2023 10:27 AM
To: John Oglesby <[e-mail]>
Cc: [e-mail]; [e-mail]; Robert Sanders <[e-mail]>
Subject: RE: SW6221201 Ample Storage

John,

I was looking over the additional information you provided on April 4, 2023. Everything looks good except for a few small
issues:

Please correct the following:
- Prior Comment 1d – There still appears to be an issue with the drawdown calculations, The starting water
elevation is shown as 193.36’ which does not correspond to the temporary pool surface elevation (193.7’) which
impacts the driving head used to determine the rate of drawdown of the design volume. Please ensure that the
starting water elevation (and by extension, driving head and drawdown rate) is based on the temporary pool
surface elevation (193.7’ per the invert of the bypass mechanism on the outlet structure). NOTE: While not
required per the MDC, it is recommended to size the drawdown orifice so that both the design volume (21,695
3

cf) and minimum required treatment volume (13,651 cf) drawdown within the required 2-5 day window
(reducing the size of the drawdown orifice from 2.5” to 2.0” should address this). Please revise as needed.

Please provide the following:
- 1x hard copy & 1x electronic copy of the revised calculations.
- 1x hard copy & 1x electronic copy of the revised Supplement-EZ Form Pages.
- 2x hard copies & 1x electronic copy of the revised plan sheets (if applicable).
- 1x hard copy & 1x electronic copy of any other items needed to address this issue.

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.

Electronic copies should be uploaded at the following location:
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]

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From: Farkas, Jim J
Sent: Tuesday, March 7, 2023 7:48 AM
To: [e-mail]; [e-mail]; [e-mail]; robert@csd-
engineering.com
Cc: Joyner, Melissa <[e-mail]>
Subject: RE: SW6221201 Ample Storage

Good Morning,
The Division of Energy, Mineral and Land Resources (DEMLR), received additional information for a Stormwater
th
Management Permit Application for the subject project on December 6, 2022. A review of that information has
determined that the application is not complete. Attached is a letter describing the items that need to be submitted. If
you have any questions, please feel free to contact me. My contact information is listed below.
Thank you,

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

From: DeBerry, Margie <[e-mail]>
Sent: Tuesday, December 6, 2022 1:31 PM
To: [e-mail]; [e-mail]; [e-mail]; robert@csd-
engineering.com
Cc: Lawyer, Mike <[e-mail]>; Farkas, Jim J <[e-mail]>
Subject: SW6221201 Ample Storage

Good afternoon,

We received your post-construction stormwater permit application for the above mentioned project on 12/6/2022.
Reviews under the standard permitting process generally take 75 calendar days, but can take up to 90 calendar days per
statute (our other reviewer, Corey Anen, no longer works for the State, so this review may exceed 75 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://edocs.deq.nc.gov/Forms/SW-Supplemental-Upload

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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 #: SW6221201

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

Thank you,

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

Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.
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