20070452 Ver 1_Emails_20070712

RE: DWQ EXP No. 07-0452v2 (Wal-Mart Store No 1337-06)
Subject: RE: DWQ EXP No. 07-O452v2 (Wal-Mart Store No 1337-06)
From: "Dirk Siebenbrodt" <DSiebenbrodt c~fk-inc.com>
Date: Thu, 12 Jul 2007 09:34:51 -0400
To: "Cynthia F Van Der Wiele" <[e-mail]>
Cynthia,
The 45.80 CFS is the discharge rate at the outlet of the detention pond.
I checked the report yesterday and verified it again.
Well, here would be the plan:
We are thinking about using the High Flow Bypass structure in
combination with the 130' long level spreader.
That means that an orifice will direct flows under 10 CFS to the level
spreader and everything over it to the bypass channel.
Please let me know your thoughts on this.
Again, I appreciate that you are taking the time for my questions and
thank
you for working with us on this project,
Dirk Siebenbrodt
Freeland and Kauffman, Inc.
209 West Stone Avenue
Greenville, SC 29609
864-672-3408
fax [phone]
-----Original Message-----
From: Cynthia F Van Der Wiele [mailto:Cynthia.vanderwieie'_~ncmail.net]
Sent: Wednesday, July 11, 2007 3:03 PM
To: Dirk Siebenbrodt
Subject: Re: DWQ EXP No. 07-0452v2 (Wal-Mart Store No 1337-06)
Dirk: Wouldn't you use the discharge rate at the outlet of the
detention basin???
Cynthia
Dirk Siebenbrodt wrote:
Cynthia,
I hope you are doing fine. We are currently working on the comments
for the above mentioned project. One of them was the addition of a
filter strip at the basin discharge.
As advised in the NCDENR SW BMP Manual, I used the 45.80 CFS that
occur during the 10-year storm to calculate the total length of filter
strip/level spreader and got 595'.
The maximum length per the manual is 130'. So the filter strip alone
will not be sufficient for the 10-year storm. Although not necessary
if used in combination with wet detention basins, I was thinking about
using the High Flow Bypass System as mentioned in Chapter 8 of the
manual.
I was also wondering where I could find more detailed plans of the
filter strip and level spreader on the Internet or if you might have
standard working drawings of these structures in your office.
I appreciate that you are taking the time for my questions and thank
you for working with us on this project,
Dirk Siebenbrodt
Freeland and Kauffman, Inc.
209 West Stone Avenue
1 of 2 7/16/2007 12:09 PM

RE: DWQ EXP No. 07-0452v2 (W al-Mart Store No 1337-06)
Greenville, SC 29609
864-672-3408
fax [phone]
The files attached hereto are and shall remain the exclusive property
of Freeland and Kauffman, Inc. Recipient is granted, and by opening
the attached files agrees that recipient only has, a non-exclusive and
non-assignable or transferable license to use, copy and reproduce
these files solely in connection with the construction, repair,
maintenance, and/or occupancy of the premises represented in the
attached files. Any re-use, changes, amendments, derivations or other
I re-transmission of these files, without the express written consent of I
Freeland and Kauffman, Inc., is prohibited and the recipient shall
indemnify Freeland and Kauffman, Inc. for any claims or liability
arising from unauthorized used. The controlling instruments of
service and/or hardcopy of the construction documents controls over
the attached electronic files and the attached files are not and
should not be considered reliable.
2 of 2 7/16/2007 12:09 PM