Clay,

 

Referring to PK's Meeting Memorandum dated August 24, 2011:

·         Comment 1.d – we have overlaid our best estimate of the area draining to the south in the area west of the airport, east of Midway and north of DART onto PK's drainage area
map (see attached Revised PK Figure 3).  I also attached the archived drawings on which this is based.  We did not find any actual drainage plans for the system contributing to the 30"
outfall to the ditch paralleling DART, so we geo-referenced the DA maps for the adjoining systems (Midway Rd and the airport itself).

·         Comment 6 – I have not been able to track down the source of this comment.  I don't think that the differences are significant.  This comment can be disregarded.

 

Thanks,

                

Walter E. Skipwith, PE, D.WRE

Vice President

 

	
HALFF ASSOCIATES, INC.

Phone 214-346-6220

Fax 214-739-0095

www.halff.com

	

 

 

 

 

 

 

From: Skipwith, Walter 
Sent: Monday, August 29, 2011 11:56 AM
To: Buchanan, Robert
Cc: Gaspard, Noelle
Subject: FW: Addison - Arapaho DA Map

 

Robert,

 

Drainage Area PDF's for use in developing DA for triangle bounded by Airport, Midway and DART.  Come see me and I'll show you what I want.

 

--Walter

 

From: Gaspard, Noelle 
Sent: Monday, August 29, 2011 11:19 AM
To: Skipwith, Walter
Cc: Hajek, Eric
Subject: Addison - Arapaho DA Map

 

N:\27000s\27717\DataIn\Plans\Plan Room Plans\FLAT FILES_01-25\FF_18\FF-18 Arapaho Road Phase III Record Drawing 2-15-05

 

Page attached. 

 

Noelle Gaspard, PE, GISP, CFM

Project Manager

 

	

	
HALFF ASSOCIATES, INC.

1201 North Bowser Road

Richardson, Texas 75081

Phone 214-346-6200

Direct 214-346-6313

Fax 214-739-0095

www.halff.com