20090411 Ver 1_More Info Letter_20090722

NCDETIR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H.Sullins Dee Freeman
Governor Director Secretary
July 22, 2009
DWQ Project# 09-0411
Wake County
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
State of North Carolina
Department of Health and Human Services
101 Blair Road
Raleigh, NC 27699-2001
Subject Property: State Laboratory for Public Health and Medical Examiner's Office
Ut to Richmond Creek [030402, 27-21-(0.5), C,NSW]
REQUEST FOR MORE INFORMATION
Dear Sir or Madam:
On April 15, 2009,the Division of Water Quality(DWQ)received your application dated February 26,
2009, to fill or otherwise impact 20 linear feet of perennial stream, and 6,352 square feet of Zone 1 Neuse
River basin protected riparian buffers and 6,126 square feet of Zone 2 Neuse River basin protected
riparian buffers to construct the proposed State Laboratory For Public Health and Medical Examiner's
Office at the subject site. On June 22, 2009, your response to the May 13, 2009 DWQ request for more
information was received. The DWQ has determined that your application was incomplete and/or
provided inaccurate information as discussed below. The DWQ will require 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. As listed in the Required Items Checklist, please provide plan details for the bioretention cells at
a scale of 1"=20'.
2. Please specify provide a larger diagram of the bioretention cross-section.
3. Please re-design the outlet of the proposed Wet Detention Pond to protect against erosion in the
riparian buffer. The DWQ suggests extending the discharge pipe to discharge stormwater to a
flatter area. In addition, please provide a dissipater pad with supporting calculations to show that
the flow will be maintained at a non-erosive velocity(2 fps or less)during the peak flow from the
10-year storm.
401 Oversight/Express Review Permitting Unit One
1650 Mail Service Center,Raleigh,North Carolina 27699-1650 NorthCarolina
Location:2321 Crabtree Blvd.,Raleigh,North Carolina 27604
Phone:[phone] FAX:[phone] atura�Ilf
Internet:http://h2o.enr.state.nc,us/ncwetlands/
An Equal Opportunity 1 Affirmative Action Employer

Department of Human Services
Page 2 of 2
July 22,2009
4. Please re-design the outlet devices from the bioretention cells to ensure that the water depth will
not exceed 12 inches. This could be achieved through the use of a level concrete berm or a drop
inlet set at the appropriate elevation.
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.
Sincerely,
WJA*�o
Cyndi Karoly, Supervisor
401 Oversight/Express Review Permitting Unit
CBK/�m
cc: Lauren Witherspoon, DWQ Raleigh Regional Office
USACE Raleigh Regulatory Field Office
File Copy
Stephen C. Brown, Terracon Consultants, Inc., 2020-E Starita Road,Charlotte,NC 28206
Filename: 090411 stateLaboratoryForPublicHealthAndMedicalExaminersOffice(Wake)On_Hold2.doc

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