HomeMy WebLinkAbout20071411 Ver 1_More Info Received_20071026Environmental Consultants, PA
:Road Raleigh, North Carolina 27614 Phone: (919) 846-5900 Fax: (919) 846-9467
www.SandEC.com
October 26, 2007
S&EC Project # 6043.W3
DWQ No. # 07-1411
Division of Water Quality - 401 Oversight and Express Review Unit
Attn: Cyndi Karoly/Ian McMillan D ~ ~ ~ ~~(~ D
2321 Crabtree Boulevard t~
Suite 250 O C T 2 6 2007
Raleigh, NC 27604
-v~rl~wns ~o si+~~
Re: Impact Area No. 2 site meeting summary, October 18, 2007, 1:30 pm
Whitehall Manor Greenway
Wake County, North Carolina
Dear Ms. Karoly and Mr. McMillan:
On October 18, 2007, S&EC staff met with Mr. Ian McMillan, Ms. Lia Myott and Mr.
Joseph Gyamfi (NC DWQ), Mr. Peter Cnossen (Jones &Cnossen Engineering) and Mr.
Robert Robertson (BRG Builders and property owner) at the Whitehall Manor
subdivision to review the area referred to as "Impact Area No. 2" on the previously
submitted "After-the-fact" application package. The purpose of this site meeting was to
determine the total length of perennial stream channel impacted by the road crossing
installed at this location.
The application package submitted on August 17, 20071isted this roadway crossing as
148 linear feet of permanent perennial stream impact. Subsequent measurements by Mr.
Cnossen and Mr. Robertson determined the stream impact at this location to be
approximately 155 linear feet. This measurement included the culvert, flared end
sections and rip-rap dissipater pads, both upstream and downstream of the crossing.
In an effort to minimize the amount of impact at this crossing, Mr. Cnossen and Mr.
Robertson suggested the following:
1) Remove rip rap dissipater pad (approximately l O linear feet) at downstream end
of road crossing;
2) Remove one joint (8 linear feet) of culvert pipe at downstream end of road
crossing;
Charlotte Office:
236 LePhillip Court, Suite C
Concord, NC 28025
Phone: (704) 720-9405
Fax: (704)720-9406
Greensboro Office:
3817-E Lawndale Drive
Greensboro, NC 27455
Phone: (336) 540-8234
Fax: (336) 540-8235
3) Replace rip rap dissipater pad (approximately l O linear feet) at downstream end of
shortened culvert pipe and road crossing;
4) Remove rip rap dissipater pad (approximately 5 linear feet) at upstream end of
road crossing.
These modifications at the roadway crossing Impact Area No. 2 will result in a net
decrease in stream channel impacts of 13 linear feet. Therefore, total permanent stream
channel impacts at Impact Area No. 2 will be 1421inear feet. Please see the attached
redesigned Impact Maps for Impact Area No. 2.
Additionally, Mr. Cnossen and Mr. Robertson also agreed to do stream and stream bank
restoration and stabilization where the rip-rap dissipater pads and culvert pipe section
were removed. This plan will be developed by S&EC staff and will be forwarded to you
for your Approval at a later date.
Mr. McMillan, Ms. Myott and Mr. Gyamfi concurred with this approach during the site
visit.
Please call if you have any questions or require further explanation.
Sincerely,
~.~.
Nicole J. Thomson
Regulatory Specialist
Attachments: 5 copies of Summary letter
5 copies of previously submitted Impact Maps
5 copies of proposed revision Impact Maps
5 copies of proposed final Impact Maps
CC: Ms. Lauren Witherspoon (NCDWQ Raleigh Regional Office)
Mr. Jamie Shern (USAGE Raleigh Regulatory Field Office)
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