20061376 Ver 1_More Info Letter_20060912

~Q' ~ William G. Ross Jr„ Secretary
~~.- North Carolina Deparbnent of Environment and Natural Resources
=~
D .~ Alan W. Klimek, P.E. Director
Division of Water Quality
September 12, 2006
DWQ EXP No. 06-1376
Wake County
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
Novartis Vaccines and Diagnostics
Attn: Mr. Jerry Hoekwater
4560 Horton Street, M/S Z-100
Emeryville, CA 94608
Subject Property: Proposed Novartis Vaccines and Diagnostics Facility Holly Springs
REQUEST FOR MORE INFORMATION-EXPRESS REVIEW PROCrRAM
Dear Mr. Hoekwater,
On September 12, 2006, the Division of Water Quality (DWQ) received your PCN application for the
above-referenced project through the Express Review Program. The DWQ has determined that the
application will require additional information in order to review and provide an approval to impact these
resources. Failure to provide this information may result in denial of your application as required by 1 SA
NCAC 2H .0506.
Please provide the following information so that we may continue to review your project:
1. Stormwater Management Plan:
a. Please submit a stormwater management plan for the subject property as per the guidelines
below. Under Condition No. 4 of GC 3402, the Division will require stormwater
management plans for developments that have, or are anticipated to have, 30% or greater of
impervious surface area. Furthermore, it is the Division's policy that areas of concentrated
development within a project must treat stormwater runoff. Stormwater management shall
be designed to remove 85% TSS according to the latest version of DWQ's Stormwater Best
Management Practices manual at a minimum. Please submit stormwater management
plans that include site plans (with the structural practices utilized), worksheets and
supporting calculations, signed and notarized operation and maintenance agreement.
2. Retaining Wall Requirements:
You have proposed a 1:1 slope reinforced earthen retaining wall in order to minimize
impacts to a perennial stream. DWQ is concerned about the high erosion
potentiaUsusceptibility to failure of the proposed wall and its consequences down slope to
the stream. We request the plans and supporting geotechnical information for this
retaining wall to determine if this is an acceptable option.
Please respond within three (3) days of the date of this letter by sending five (5) copies of the above
information in writing.
4010verslght I Express Review PermRting Unit
1650 Mall Serve Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] FAX [phone] lntemet: httn://h2o.enr.state.nc.us/ncwetlands
N°ne Caro ' a
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An Equal Opportunity/Affirmatlve Action Empbyer- 50% Recydedll0% Post Consumer Paper

Page 2 of 2
September 12, 2006
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 contact Cynthia Van Der Wiele at [phone] or Lia Myott at [phone] if you have any
questions regarding or would like to set up a meeting to discuss this matter.
Sincerely, J~
J~
Cyndi Karoly, / 1
401 OversightBxpress Review Permitting Unit
CBKlcvdw/lem
cc: USACE Raleigh Regulatory Field Office
DWQ Raleigh Regional Office
File Copy
Central Files
Harold Brady, Mulkey Engineers & Consultants, Inc., 6750 Tryon Rd., Cary, NC 27511
Filename: 061376Novattis(W a ke)EXP+hold