20081832 Ver 1_More Info Letter_20100224

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North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H, Sullins Dee Freeman
Governor Director Secretary
February 24, 2010
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
T. Allen Pipkin
11030 Raven Ridge Road, Suite 109
Raleigh, NC 27614
Subject Property: SE 40 Centre
Poplar Branch [030402, 27-34-11-1, C, NSW]
REQUEST FOR MORE INFORMATION
Dear Mr. Pipkin:
DWQ Project # 08-1832
Wake County
On December 16, 2008, the Division of Water Quality (DWQ) received your application dated December 12,
2008, to fill or otherwise impact 4,312 acres of 404/wetland, 170 linear feet of reportedly ephemeral stream, and
0.00 square feet of Zone 1 Neuse River basin protected riparian buffers and 0.00 square feet of Zone 2 Neuse
River basin protected riparian buffers to construct the proposed residential/commercial project at the site. On
January 12, 2010, the DWQ returned your project to you, however, based on discussions with your attorney,
Steve Levitas, the DWQ has agreed to reinstate your project and requests the following information as
discussed below. The DWQ will require this additional information in order to process your application to
impact protected wetlands and/or streams on the subject property. Therefore, unless we receive five copies of
the additional information requested below, we will place this project on hold as incomplete until we receive
this additional information. If we do not receive the requested information, your project will be formally
returned as incomplete. Please provide the following information so that we may continue to review your
project.
Additional Information Requested:
1. The document "Downstream Channel Calculations for Southeast 40 Centre,' dated July 17, 2009, and
submitted by your consultant, Bass, Nixon, Kennedy, Inc. shows that the flows are being discharged to
the ephemeral channels at an erosive velocity. Therefore, the current configuration of the stormwater
outfalls is not be considered by the DWQ to meet the criteria for "Existing drainage ditches, roadside
ditches and stormwater outfalls" in Item (6) of the Neuse Riparian Buffer Rule (15A NCAC 2B .0233).
2. The riparian buffers are too steep to allow for diffuse flow in these locations. Please provide a BMP or
series of BMPs that removal a minimum of 85 percent TSS and 30 percent TN from the stormwater
discharged from the roadways. For each proposed BMP, please provide a completed BMP Supplement
Form, with all the required items. The BMP Supplement Forms are available at:
http://portal.ncdenr.org/web/wq/ws/su/bmp-manual. Please include both the Design Summary and the
Required Items Checklist along with all the required items listed therein.
4010versighUExpress Review Permitting Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
Location: 2321 Crabtree Blvd., Raleigh, North Carolina 27604
Phone: [phone] ? FAX: [phone]
Internet: http:l/h2o.enr.state.nc.us/ncwetlands/
NhCarolina
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An Equal Opportunity 1 Affirmative Action Employer
T. Allen Pipkin
Page 2 of 2
February 24, 2010
Please provide a conceptual stormwater management plan for the project that includes the following:
a. A depiction of the drainage areas on the site.
b. An estimation of the percentage imperviousness associated with each of the drainage areas.
c. A preliminary calculation of the water quality volume associated with each drainage area.
d. A depiction of the proposed BMPs (state the type of BMPs you plan to use) on the site plan that
is correctly sized based on the water quality volume.
Please submit this information within 30 calendar days of the date of this letter. If we do not receive this
requested information within 30 calendar days of the date of this letter, your project will be withdrawn and you
will need to reapply with a new application and a new fee.
This letter only addresses the application review and does not authorize any impacts to wetlands, waters or
protected buffers. Please be aware that any impacts requested within your application are not authorized (at this
time) by the DWQ. Please call Ms. Cyndi Karoly or Mr. Ian McMillan at 919-733-1786 if you have any
questions regarding or would like to set up a meeting to discuss this matter. A
Sinc ely,
Cyndi Karoly, Supervisor
1 Oversight/Express Review Permitting Unit
CBK/Ym
cc: Lauren Witherspoon, DWQ Raleigh Regional Office
USACE Raleigh Regulatory Field Office
File Copy
Jay Keller, Keller Environmental, 7921 Haymarket Lane, Raleigh, NC 27615
Filename: 081832_SEMCentre(W ake)On_HOM
■ Complete Items 1, 2, and 3. Also complete . Sig u
Item 4 if Restricted Delivery is desired. ❑Agent
■ Print your name and address on the reverse L - ❑Addressee
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so that we can return the card to you. B. Received by (Prine) C. Date of Delivery
■ Attach this card to the back of the mailpiece, `G�{�
or on the front if space permits. _—
D. Is deli drggaellilbre m iffi� ? ❑Yes
1. Article Addressed to: if Y2 tet elivery address lova9 ❑ No
T Allen Pipkin 2/25/10
11030 Raven Ridge Rd Ste 109
Raleigh NC 27614
DWQ 08-1832 Wake County
FEB 2 (" 2010
3. SeNGe-
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❑ Regi um F
13 insured Ma
4. Restricted Delivery? (Extra Fee)
2. Article Number
(rransfer from service label) ?008 2 810 0000 117 8 2326
for Merchandise
❑ Yes

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NC DENR Division of Water Quality
401 Oversight/Express Unit
2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604