ST9302-CS 960425SE~T BY:CITY OF DALLAS ; 5-17-96 ; 12:13 ;
Memorandum
April 25, 1996
WATER UTILITIES~
I1ECEIVED APR 2 9
214 304 3570;# 2/
CITY OF DALLAS
TO
$OBJ[CT
Brian Cowan, Project Manager
Relocations/DART
Shutdowns of 30" Flower Mound Water Transmission Main for Paving and Drainage
Improvements:
1. Denton Tap Koad from Highland Drive to S.H. 121;
2. Sandy Lake Road from Denton Tap Road to MacArthur Boulevard
We have rcviewed your two memos dated April 15 and 22 regarding the two paving
improvement projects requiting shutdown of Dallas' 30" Flower Mound water transmission
main for relocation. This water transmission main is the only source of treated water tbr the
Town of Flower Mound, and the shutdowns must be accomplished in a manner that will not
result in Flower Mound running out of water. Flower Mound has enough storage to sustain
a winter-time, low demand, shutdown not lasting much longer than 48 hours. Some
assistance in maintaining a supply to Flower Mound during the 48 hour shutdown can b~
obtained from an emergency connection Dallas maintains with the City of Lewisville near the
intersection of FM 3040 and Valley Parkway, This emergency connection could provide a
minor amount of leeway if the shutdown extends past 48 hours; however, it cannot be relied
upon to maintain a usable supply to Flower Mound.
The following comments apply to both paving projects:
1. A shutdown of 48 hours can be sustained by Flower Mound providing the following
conditions are met:
a. The shutdown is not longer than 48 hours.
b. The emergency connection with Lewisville is activated.
c_ The shutdown occurs when Flower Mound's demand requirements are Iow
enough to allow it. It is anticipated that this period of time would bc during
the lower demand period of October through February.
d. The shutdown is coordinated in advance through Water Operations.
Providing it is necessary to place a note on the design plans and within the project
construction specifications, it should be noted that whoever is in charge of the
construction of the relocation must contact DWU's Water Operations Supervisor,
John Wilson, or his assistant at phone number 670-8063 or 670-8064, at least 10
working days in advance of the required shutdown. John will make the necessary
G~4 2761-04-01. g
"The Only Reason You And I Arc I1¢.: Is TO Serve l~e Citiz~%s Of DIII~S"
SENT BY:CITY OF DALLAS ; 5-17-96 ; 12:13 ; WATER UTILITIES~ 214 304 3570;# 3/ 3
April 25, 1996
Brian Cowan
Page 2
contacts to ensure the shutdown is coordinated with DWU and Flower Mound
personnel.
Additionally, these shutdowns must be coordh~ated in advance with Water Operations (John
Wilson) prior to September 1996 i'or compatibility with DWU's winter maintenance
shutdown and operations schedule.
Please note that a shut-down of approfimately three months is not acceptable or feasible for
the Sandy Lake Road - Denton Tap Road to MacArthur Boulevard paving project.
Please continue to keep me informed of'the progress on these important paving projects. If
you have any questions, please feel free to call me at 670-5887.
Phillip L. Boyd
Manager
Wholesale Services Division
c: Dennis Cave
Mike Rickrnan
Charles Stringer
John Wilson