20040825 Ver 2_Stormwater Approval_20070117

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NCDENR
North Carolina: Department of Environment and Natural Resources
Michael F. Easley, Governor
Division of Water Quality
William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
Merck and Company, Inc.
Attn: Mr. Butch Standerfer
5235 Old Oxford Road
Durham, NC 27712
Subject Property: Merck Vaccine Manufacturing Facility
DWQ Project # EXP 04-0825v2
Durham County
APPROVAL OF MODIFICATION OF STORM WATER MANAGEMENT PLAN
Dear Mr. Standerfer:
The Division of Water Quality (DWQ) has reviewed the January 16, 2007 Modification Request to the
Storm Water Management Plan approved by DWQ on July 12, 2004. You have requested to revise the
plant material for the extended detention wetlands due to the limited availability of some species. DWQ
will approve of this change to the planting plan for the extended detention wetlands. All other structural
stormwater BMPs approved by DWQ must be constructed as originally approved.
This Modified Stormwater Management Plan will satisfy the stormwater conditions required by the Neuse
River Buffer Rule Authorization Certificate issued on May 24, 2004. You are required to meet the
following conditions (as well as the conditions contained within the Authorization):
1. The storm water treatment plan, as approved by this Office, and the drainage patterns depicted on
the plan sheets, must be maintained in perpetuity. No changes to the structural storm water
practices shall be made without written authorization from the Division of Water Quality. The
storm water easements shall allow for the ability to maintain the structures, perform corrective
actions, and shall provide protection of the structures from potential alternations by future
property owners.
2. The applicant and/or authorized agent shall contact the DWQ Express Review Program in writing
at the letterhead address within ten (10) days of the commencement of construction.
401 Wetlands Certification Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] /FAX [phone] I Internet: http://h2o.en r.state. nc. us/ncwetlands
An Equal OpportunitylAffirmative Action Employer- 50% Recycled/10% Post Consumer Paper
January 17, 2007
NorthCarolina
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MODIFICATION to Merck Vaccine Manufacturing Facility Stormwater Management Plans
DWQ No. 04-0825v. 2
Page 2 of 2
January 17, 2007
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water
Act. If you have any questions, please contact Cyndi Karoly at 919.9721 or Cynthia Van Der Wiele,
Ph.D. at 919.715.3473.
Sincerely,
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Cyn~i Bell Karoly, Program Manager
401 Oversight, Express Review Program
CBK/cvdw
cc: USAGE Raleigh Regulatory Field Office
DWQ Raleigh Regional Office
File Copy
Central Files
Kevin Yates, P.E., John R. McAdams Co., Inc., 2905 Meridian Pkwy., Durham, NC 27713