20130223 Ver 7_More Info Requested_20190128

Carpenter,Kristi
From:Norton, April R
Sent:Monday, January 28, 2019 12:59 PM
To:Thomson, Nicole J; Cheely, Erin K
Cc:[e-mail]; Patterson, Robert D;
Moon, Chris D; Parker, Jerry A; Carpenter,Kristi;
Moore, Byron G
Subject:RE: Request for Additional Information_20130223v7
_U-2524CD Modification_Guilford
Follow Up Flag:Follow up
Flag Status:Flagged
Nikki – please provide the calculations for the proposed boulder step-downs.

Thanks,
April

From: Thomson, Nicole J
Sent: Monday, January 28, 2019 10:58 AM
To: Norton, April R <[e-mail]>; Cheely, Erin K <[e-mail]>
Cc: [e-mail]; Patterson, Robert D
<[e-mail]>; Moon, Chris D <[e-mail]>; Parker, Jerry A
<[e-mail]>; Carpenter,Kristi <[e-mail]>; Moore,
Byron G <[e-mail]>
Subject: RE: Request for Additional Information_20130223v7_U-2524CD
Modification_Guilford

April –
Just some clarification questions:

Are you looking for sizes/calculations of the proposed boulder step-downs or are you
questioning the size of the rip rap on the banks (bank stabilization detail 25)? Or are
you looking for both?

Thanks in advance – we are working on getting you a response.

Nikki

Nicole J. Thomson, PWS
Division Environmental Supervisor Assistant
Division Environmental Office

919-754-7806 Mobile
[e-mail]

PO Box 14996
Greensboro, NC 27415-4996

1

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

From: Norton, April R <[e-mail]>
Sent: Friday, January 25, 2019 2:56 PM
To: Cheely, Erin K <[e-mail]>
Cc: [e-mail]; Patterson, Robert D
<[e-mail]>; Moon, Chris D <[e-mail]>; Thomson,
Nicole J <[e-mail]>; Parker, Jerry A <[e-mail]>;
Carpenter,Kristi <[e-mail]>
Subject: RE: Request for Additional Information_20130223v7_U-2524CD
Modification_Guilford

Erin,

The Division of Water Resources received your application dated January 11, 2019,
requesting a 401 Water Quality Certification for the subject project. The Division has
determined that your application is incomplete and cannot be processed. The
application is on-hold until all the following information has been addressed.

1. Please provide calculations to ensure that the rocks/boulders are appropriately
sized, based on stream flow/velocity/shear stress. \[15A NCAC 02B .0216\]

2. It appears as though a geotextile is not proposed for stability within the rock
step-down structures. If this is the case, please explain why geotextile is not
proposed. \[15A NCAC 02H .0506\]

3. If riparian buffers are impacted, please locate all of the protected riparian
buffers as overlays on the site plan, clearly showing Zone 1 and Zone 2 and
enumerate all riparian buffer impacts on the site plan and clearly label impacts
(Buffer Impact 1, etc.). The Division recommends highlighting by hatching or
shading all impacts areas for temporary impact areas and permanent impact
areas. Please keep in mind that any new buffer impacts may not fall under the
previous buffer exemptions for this project. \[15A NCAC 02 .0262\]

Please respond within 30 days in writing.

Thanks,
April

From: Cheely, Erin K
Sent: Thursday, January 24, 2019 11:27 AM
To: Norton, April R <[e-mail]>
Cc: [e-mail]; Patterson, Robert D
2

<[e-mail]>; Moon, Chris D <[e-mail]>; Thomson,
Nicole J <[e-mail]>
Subject: RE: Request for Additional Information_20130223v7_U-2524CD
Modification_Guilford

April,

I reached out to the Division with regard to your questions and below is the response I
received from Chris Moon. Let me know if further information or changes are needed:

------------------------------------
1. The As-Built plan drawing I created was based on the conversation between David
Bailey and I. I wasn’t given any design criteria/calculations to go by other than to draw it
based on the same drawing I created for Permitted site 7. The rock size was based on:
(A) What can be typically found in Class 1 (sifting through loads of rock to meet the
parameters in the drawing) length, width, height.
(B)Trying to find flat tops and bottoms and being wide enough to meet the embedment
to hold the rocks in place during heavy flow in the stream.

2. There was no geotextile utilized because it wasn’t requested when it was done at site
7 so it wasn’t drawn for this site as well. If it is something that needs to be incorporated
we will use it.

Basically I have drawn the As-Built per the agency request. If I need to mock up the
drawing just let me know what I need to add.
------------------------------------

Thanks,
erin

From: Norton, April R <[e-mail]>
Sent: Tuesday, January 22, 2019 9:38 AM
To: Cheely, Erin K <[e-mail]>
Cc: [e-mail]; Patterson, Robert D
<[e-mail]>
Subject: Request for Additional Information_20130223v7_U-2524CD
Modification_Guilford

Erin,

Thank you for your 401 Water Quality Certification application, dated January 11, 2019.
To continue the 401 Water Quality Certification review for the subject project, please
provide the below additional information:

1. Please provide calculations to ensure that the rocks/boulders are appropriately
sized, based on stream flow/velocity/shear stress.
2. It appears as though a geotextile is not proposed for stability within the rock
step-down structures. If this is the case, please explain why geotextile is not
proposed.

Thanks,
3

April

April R. Norton
Environmental Senior Specialist
Transportation Permitting Unit
Division of Water Resources
NC Department of Environmental Quality

919-707-9111 office
919-710-6516 mobile
[e-mail]

th
512 North Salisbury Street, 12 Floor (physical)
1617 Mail Service Center (mailing)
Raleigh, NC 27699

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

Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third
parties.
4