20090495 Ver 1_More Info Received_20090817

Strickland, Bev
From: Homewood, Sue
Sent: Monday, August 17, 2009 3:25 PM
To: Dennison, Laurie; Strickland, Bev
Subject: FW: Davie Kidney Center
Attachments: Minimization letter-signed.pdf
For file 09-0495
Please note my new email address
Sue Homewood
NC DENR Winston-Salem Regional Office
Division of Water Quality
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone]
FAX: [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
From: Ken Binkley [mailto:[e-mail]]
Sent: Monday, August 17, 2009 10:54 AM
To: [e-mail]
Cc: Tim Jennings
Subject: Davie Kidney Center
Ms. Homewood,
As per our phone conversation last Friday I have drafted a letter to address the minimization of stream impact. Please
see the attached PDF. If you have any questions or concerns please feel free to contact me.
Thanks,
Ken Binkley
[e-mail]
Stimmel Associates, P.A.
601 N. Trade St. Suite 200
Winston-Salem, NC 27101
v: 336.723.1067 ext.118 f:336.723.1069
www.stimmelpa.com
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Stimmel

Stimmel Associates, PA
Landscape Architecture
Civil Engineering
Land Planning
August 17th, 2009
Sue Homewood
North Carolina Division of Water Quality
Winston-Salem Regional Office
585 Waughtown St.
Winston-Salem, NC 27103
Re: Davie Kidney Center Stream Impact Minimization
Dear Ms. Homewood,
The purpose of this letter is to address the issue of avoidance and minimization of stream impacts
for Davie Kidney Center on Interstate drive.
Two main issues affect the stream impact with the development of this project, grade of the site and
the sanitary sewer service line. The grade from Interstate Dr. to the back of the site has a general
slope upward from the road. Elevations along the frontage of Interstate Drive range from 794+/-
MSL on the Southwest side to 799+/- MSL Northeast side. The back of the site has an elevation of
818+/- MSL. A finished floor has to be established on a level pad which will cause cut in the back of
the site and fill in the front of the site due to this slope. The stream occurs near the front of the site
where the fill will have to occur for access to the site. The stream currently crosses Interstate drive
via culvert near the southern property corner of the site where the 794 MSL elevation occurs. As
part of the initial submittal sent to you, several site plans and stream crossings were explored and
we feel that the current site plan provided a good balance between site conditions and stream
crossing. The placement of the access driveway on the lower end of the frontage near the culvert
will minimize the elevation of the fill necessary to reach the elevation of the designed driveway.
The second issue is the sewer service line. The only connection to the sanitary sewer provided for
the site is by way of the existing sanitary sewer manhole located on the Northeast side of the road
frontage. A sanitary sewer service line will run over the existing location of the creek in order to
access the manhole. This sewer service line must be covered with soil by a depth of at least three
feet to ensure the longevity of the pipe. The placement of the 48" RCP stream pipe is in a location
that will provide the fill needed to cover the sewer service line as necessary to meet these
requirements.
Based on the above information, we feel that our design has addressed the minimization of stream
impacts. Please contact us if you have any questions or comments.
Sincerely,
A
Kenneth A. Binkley, E.I.T.
601 N. Trade Street, Suite 200
Winston Salem, NC 27101
P: 336.723.1067 F: 336.723.1069