20080636 Ver 1_More Info Received_20080812

0-6636
KELLER ENVIRONMENTAL
ENVIRONMENTAL CONSULTANTS
7921 Haymarket Lane, Raleigh, NC 27615
[phone]
Fax[phone]
LETTER OF TRANSMITTAL
TO: DWQ 401 Wetlands Unit
DATE: August 12, 2008
ATTENTION: Staff
RE: The Knoll
AUG 1 2 2008
DENR - MATER QUALfIY
WETLANDS AND STORMYWATER BRANCH
WE ARE SENDING YOU THE FOLLOWING:
? Pre-construction Notification (PCN) M Plans
M Documents ? Other
THESE ARE TRANSMITTED AS CHECKED BELOW:
M For approval M As requested
? Please reply ? See below
? Maps
M For review & comment
M For your files
? Specifications
? Regular Mail ? Fed-Ex M Delivered by KE ? Picked Up
COPIES DATE DESCRIPTION
5 08-08-08 Resubmittal Letter
5 07-30-08 DWQ Request for More Information
5 08-07-08 Pond Detail Plans (4)

Rec'd By:
THANK YOU!
Signed
4

KELLER ENVIRONMENTAL
ENVIRONMENTAL CONSULTANTS
August 8, 2008
Cyndi Karoly
NC Division of Water Quality
401 Wetlands WQ Certification Unit
1650 Mail Service Center
Raleigh, North Carolina 27699-1650
r= r=
Re: The Knoll D 1Q 0_/ m [?, Ke
ller Environmental Job No. 0701
DWQ Project # 08-0636 AUG 1 2 2008
Durham County, North Carolina
UENR - WATER ClUALi lY
VJETI.ANDS AND STORM'RCATER BRMC-1
Dear Ms. Karoly:
Thank you for your staff's assistance with this project during recent phone and email
correspondence and this morning's office meeting. We are submitting the additional
information requested from written correspondence on July 30, 2008. We are requesting
for NC Division of Water Quality (DWQ) written approval under Section 401, Clean Water
Act, 33 USC 1344 and the Neuse River Buffer Rules. We have addressed your included
written comments in the following paragraphs.
1. In the future, please provide a separate required items checklist for
each proposed level spreader.
Thank you for informing us and we will provide separate checklists for future
projects and their proposed level spreader and other BMP structures.
2. As listed in Item 2 of the required items checklist, you must provide
plan details that show one-foot topographic lines between the level
lip and the top of the stream bank. Please provide this in a legible
manner in your re-submittal.
Please refer to the attached 30-scale pond details. One-foot topographic lines
are shown along with 50 and 100-foot riparian buffers between the streams and
level spreaders.
401 Certification &
Neuse R. Buffer Rules Re-Submittal
The Knoll
August 8, 2008
Page 2 of 2
3. For level spreaders 1 and 4, the bypass device infringes on the filter
strip. Please relocate these bypass devices such that they will not
impede diffuse flow downslope of the level lip.
Please refer to the attached 30-scale pond details. To prevent potential short-
circuiting of the diffuse flow area, the input to the forebay from the bypass structure has
been extended and/or slanted away. This should prevent any potential interference.
4. Please provide a separate high flow bypass for the proposed dry
detention basins so that the level spreaders will not be compromised
during larger storms such as the 10-year storm.
Please refer to the attached 30-scale pond details. To prevent potential short-
circuiting of the diffuse flow area, the input to the forebay from the high flow bypass
structure has been extended and/or slanted away. This should prevent any potential
interference.
If you should have questions or require additional clarification please feel free to contact
me at 844-7437 (office), 749-8259 (cell) or email: iayCa?kellerenvironmental.com.
Sincerely,
Keller Environmental, LLC

Jay Keller
Principal
Cc: Amanda Boone, P.E.
Attachments:
• July 30, 2008 DWQ RFMI Letter
• Stormwater Pond & Level Spreader 11"x 17"30-scale Details (4)
William G. Ross .)r, Sccrctary
Borth Carolina Department of Environment and Natural Resources
Co#een H. Sullins, Director
Division of Water Quality
July 30, 2008
DWQ Project # 08-0636
Durham County
CERTIFIED lY AIf,: RETURN RECEIPT REQUESTED
Mr. Dave Hausfeld
The Drees Company
7701 Six forks Road, Suite 132
Raleigh, NC 27615
Subject Pzn.?pc,rty... Thy >Kn?t?... .__ _ _ __ .:.., __. __ .. .,..
CJt to Lick Creek [030401, 27-11-{1.5), WSIV, NSl , CA}
REQUEST FOR MORE INFORMATION
Dear Mr. Hausfeld:
On April 4, 2008, the Division of Waiter Quality (DWQ) received your application. dated sprit 3,
2008, to fill or otherwise impact 0.021 acres of 404/wetland, 73 linear feet of perennial stream,
'73 linear feet of intermittent stream and 9,581 square feet of Zone 1 Neuse River basin protected
riparian buffers and 5,225 square feet of Zone 2 Neuse River basin protected riparian buffers to
construct a residential development at the site. On June 20, 2008, the DWQ received additional
information from you. however, the DWQ has determined that your application remains
incomplete and/or provided inaccurate information as discussed below, The DWQ will require
additional inforn-.ation 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. In the future, please provide a separate required items checklist for each proposed level
spreader.
2„ As listed in Item 2 of the required items checklist, you must provide playa details that
show one-foot topographic tines between the level lip and the top of the stream bank.,
Please provide this in a. legible manner in your re-submittal.
401 t)vcrsight'G'xpress Review Pertnitting Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabirce Boulevard, Suite 250, Raleigh, North Carolina 27604
Phoney 919-733-17861 PAX 919.73+3.6893 / Internet: htt7 Lh2r.±.ertr ?tpt?nc.gsfnewe?iantl2
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ElVfd?lll`C1ftrlf
An l..qual ()pporttinity/,4frirmative Action Employer- 506,,•u Recycled/ 10% Post Consumer Paper
The Drees Compaz;y
Page 2of2
July 30, 2008
3. For level spreaders 1 and 4, the bypass device infringes on the filter strip. Please relocate
these bypass devices such that tbey will not impede diffuse flow downslope of the level
lip.
4. Please provide a separate high flow bypass for the proposed dry detention basins so that
the level spreaders will not be compromised during larger storms such as the 10-year
stoma,
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.
"1°his 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 tithe) by the LWQ. Please call Ms. Cyndi Karoly or Mr. Ian
McMillan at 919-733-1786 if you have any questions regarding or would. lil? to set up a meeting
to discuss this matter. f ,{ ,

Since y
C yndi Karoly, Supervisor
401 OvnrsighUExpress Review Permitting Unit:
CBK1 Jm
cc: Lauren Witherspoon, DWQ Raleigh Regional Office
USACE Raleigh Regulatory Field Office
File Copy
Central Files
Jay Keller, Keller Environmental, LLC, 7921 Haymarket Lane, Raleigh, NC 27615
Filename: 080636'1'heKna1l(Ou:•ham)On_ltold2
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