20081814 Ver 2_401 Application_20100617

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ENGINEERING
WE Design Your Tomorrow ...
June 15, 2010
Mr. Ian McMillan
NCDENR - Water Quality
401 Oversight/Express Permitting Review
1650 Mail Service Center
Raleigh, North Carolina 27699-1650
Re: City of Raleigh Project - House Creek Greenway
House Creek (030402, 27-33-13, C, NSW)
DWQ Project #08-1814
Dear Mr. McMillan:
Transportation
Planning
Bridge/Structural
Civil/Site
Construction Observation
U31-
JUN T i 20110
DE?.vu4TEatwALlTY
WETLANDS AND STCR",vlYr ".TER 6RANCN
A 401 Water Quality Certification was originally approved for this project on February 18, 2009.
Since the project was permitted originally the greenway has been revised in the vicinity of Blue
Ridge Road. This would result in additional Zone 1 Neuse River riprarian buffer impacts of 4,540
square feet and additional Zone 2 Neuse River riprarian buffer impacts of 6,579 square feet.
There are no additional stream or wetland impacts associated with this revision.
Enclosed you will find the following:
1. Half size copies of the revised sheets 21, 22, and 23.
2. Narrative.
If you have any questions please contact me at 919-851-8077 or gpurvisgwetherilleng com or
Max Price (mpricegwetherillen com). Thanks in advance for your help.
Sincerely,
WETHERILL ENGINEERING, INC.
Greg . Purvis, PE
Project Manager
Attachment
559 Jones Franklin Road
Suite 164
Raleigh, North Carolina 27606
Phone: [phone]
Fax: [phone]
[e-mail]

Narrative for Project Revision
Re: City of Raleigh Project - House Creek Greenway
House Creek (030402, 27-33-13, C, NSW)
DWQ Project #08-1814
Please note that Max Price of our office discussed this revision with Ian McMillan of NCDENR -
Division of Water Quality on 6/15/10. A 401 Water Quality Certification was originally approved for
this project on February 18, 2009. Since the project was permitted originally the greenway has been
revised in the vicinity of Blue Ridge Road. This would result in additional Zone 1 Neuse River
riprarian buffer impacts of 4,540 square feet and additional Zone 2 Neuse River riprarian buffer
impacts of 6,579 square feet. There are no additional stream or wetland impacts associated with this
revision. The greenway leading up to Blue Ridge follows an existing City of Raleigh Sanitary Sewer
easement which was previously permitted. Only areas outside of that easement were counted as
impacts for the greenway.
All constructed stormwater conveyance outlets shall be directed and maintained as diffuse flow at
non-erosive velocities through the protected stream buffers such that it will not re-concentrate before
discharging into the stream.
Erosion and sedimentation control practices shall be in full compliance with the specifications
governing the proper design, installation and operation and maintenance of the Best Management
Practices in order to protect surface water standards. The erosion and sedimentation control measures
shall be designed, installed, operated, and maintained in accordance with the North Carolina Sediment
and Erosion Control Planning and Design Manual.
The outside buffer, wetland or water boundary and along the construction corridor within these
boundaries approved shall be clearly marked with orange warning fencing (or similar high visibility
material) for the areas that have been approved to infringe within the buffer, wetland, or water prior to
any land disturbing activities.
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