Email RE State SW Permits SW6190102 and SW6190201

Anen, Steven C
From:Anen, Steven C
Sent:Tuesday, March 26, 2019 5:52 PM
To:'Mayer, F Michael'
Subject:RE: \[External\] State Stormwater Permits SW6190102 and SW6190201
Hi Mike,

We recently updated the Supplement EZ forms, but they contain mostly the same information so what you submitted is
fine. The biggest change is that an option for low density was added to the form so that it will be more user friendly on
those types of projects.

I have a few comments on both projects which are below.

SW6190102 - FB-SOF Special Tactics Facility Phase 3 PN 76514
1. Please submit hardcopy plans that are at least 22” by 34” (15A NCAC 02H .1042). Only the following sheets are
required: CG101, CG110-115, CG508, LP101, and any landscaping plans that are revised as a result of comment
2.
2. The Supplement EZ from for bioretention cells 4-11 indicate that sod is the preferred vegetation; however, the
landscape plan shows them being planted with trees. Bioretention MDC 5 requires the thickness of the media to
be at least 36 inches for all cells with trees and shrubs.
3. The table on Sheet CG508 and the Supplement EZ form for bioretention cell 3 state that the ponding depth is
12”. However, the same table states that the height of the riser for that cell is only 9”.
4. Please provide a detail for bioretention cell 3 that shows the internal water storage.

SW6190201 - PN74813 Parachute Rigging Facility
1. Please submit plans of sheets that are at a minimum of 22 inches by 34 inches. Only the following sheets are
required: CG101, CG508, and LP101.
2. The scale shown on the grading plan appears to be incorrect and doesn’t match other dimensions on the plan.
Based on the roadway stationing it appears it should be 1”=80’ rather than 1”=40’.
3. Assuming a 1”=80’ scale, the surface area of bioretention cell 1 is much smaller than what’s shown in the
calculations and Supplement EZ form (roughly 7350 sf vs. 9200 sf).
4. Please provide a detail of the bioretention cells that show the internal water storage.

Please provide pdfs of all revisions and 2 hardcopies of revised plan sheets. Pdfs must be uploaded using the form at:
https://edocs.deq.nc.gov/Forms/SW_Project_Submittal.

The Stormwater Management regulations provide 30 days for this information to be resubmitted to the Division before
the project is returned as incomplete, but I understand if that’s difficult as you’ll be out of the office. We can work to
extend that deadline if need be.

If you have any questions or want to discuss any of the comments, feel free to get in touch with me.

Corey Anen
Environmental Engineer
North Carolina Department of Environmental Quality
Division of Energy, Mineral & Land Resources Stormwater Program

512 N. Salisbury Street
1

1612 Mail Service Center
Raleigh, NC 27699-1612

919-707-3649
[e-mail]

Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.

From: Mayer, F Michael \[mailto:[e-mail]\]
Sent: Monday, March 25, 2019 10:52 AM
To: Anen, Steven C <[e-mail]>
Subject: \[External\] State Stormwater Permits SW6190102 and SW6190201

CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
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Mr. Anen

I just wanted to check on the status of two permits we have applied for with your office. I am going to be out of town
next week, and wanted to make sure you have all the information you may need, or answer any of your questions.

One thing I have noticed is that the SuppEZ form has been updated for Bioretention areas from the EZ forms that I had
submitted. I was unaware of this during our review of the projects with Fort Bragg DPW Water Management Section,
and they also did not appear to have known that the form had changed as they reviewed and approved of all of the
information and design for the projects before submittal to your office. If you need me to transfer the information from
the old form to the new one for the below projects, please let me know.

Appl./Permit No.: SW6190102
FB-SOF Special Tactics Facility Phase 3 PN 76514
Owner Name: Directorate of Public Works Dpw
Permit Type: State Stormwater

Appl./Permit No.: SW6190201
PN74813 Parachute Rigging Facility
Owner Name: Directorate of Public Works Dpw
Permit Type: State Stormwater

Again, if you need any additional information from me, please do not hesitate to ask.

Thanks!
Mike

F Michael Mayer PE, JD, LEED AP BD+C
Deputy Director of Civil Engineering | Mason & Hanger
A Day & Zimmermann Company
D 859.280.3557 | O 859.252.9980
M 859.202.1838 | F 859.259.2712
300 West Vine Street Suite 1300 | Lexington, KY 40507
masonandhanger.com
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