WA9302A-CS 980429 Coppell, Texas 75019
972-462-0022
j9COPPELL, TEXAS 75019 G April 29, 1998
Michael G. Daigre
North Texas Municipal Construction Co. Inc.
5614 Dyer Street
Dallas, Texas 75206
Re: Village Parkway Pump Station Project # WA 93-02A
Dear Mr. Daigre:
This letter is written in response to the problems with the new pumps and with the SCADA
System at the Village Parkway Pump Station. These issues make it very difficult to operate the
system with any level of confidence. As we move into the high water usage period of the year,
it's important that these issues be addressed so that the pump station is operating as designed and
that the SCADA System is providing valid information.
Ted Dutt has provided me information on the items that are inoperable. His list includes:
1. Booster Pump Button.
2. Pump #6 wanting to shutdown at 40 feet.
3. Timing and packing on Pumps #5 & #6.
4. The various flows on some of the charts on the SCADA System are not accurate. Those
include flows leaving the lift stations and the flows leaving the Village Parkway Pump
Station. Those flows do not correlate to the incoming flows or the City of Dallas flows. To
provide monthly reports the City of Coppell needs the flow information to be accurate and
valid.
5. Computer/r2 provided for the Teledak System is inoperable, with a hard drive problem.
6. Eye Wash valve is broken.
7. The panel lights on Pumps #5 & #6.
8. The spare drive for the elevation chart needs to be rebuilt and reinstailed.
9. The old sensor needs to be installed as the primary, with the new sensor as the baclatp at
Sandy Lake Lift Station.
These issues need to be addressed as soon as possible. Please contact Ted Dutt at (972)304-3545
as to the date and time of repairs.
Zenneth~2Y'M.F~~i~, P.E.
Director of Engineering and Public Works
cc: Ted Dutt, Water Utilities Sr. Crewleader
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