WA9902-CS 990825August 25, 1999
Mr. Ken Griffin
Director of Engineering & Public Works
City of Copl~ll
P.O. Box 478
Copp~ll, Texas 75019
City of Dallas
Dear Mr. Griffin:
II has boe, n D-qlhg V~'di~r Uiilhies' midc/~clh~g that tlic Ciiy of Copr,~ll's prixuary metering facili~, is fi',c recently constructed
Village Parkway Pump Starion. Previous correspondence from Coppell informed us that the older metering facility located at
Sandy Lake Road should not yet be abandoned (refer to attachment #1.) However, the metering facility at Sandy Lake Road
preSents several operational Concerns to Dallas Water Utilities.
Components of the metering and telemetry are currently inoperable. Therefore, DWU cannot guarantee an accurate
measurement of water.
Due to a realfunctioning valve on the DWU side of the metering facility, there is 'leak by7 into Coppell's. 5 MG reServoir
that is not accurately registering on the totalizer meter. It was our understanding of prior discussions with Coppell staff
that when the Sandy Lake Road reservoir was pumped down by Coppell staff to avoid losing available water, the demand
at the Village Parkway metering facility would be similarly reduced. This would allow the efficient use of the water
available to Coppelt without going over Coppoll' s authorized demand setting.
According to calculations prepared by our Pumping personnel (refer to aUachinent #2), Coppell has consumed 2,085 (xl000)
gallons from the Sandy Lake Road metering facility between July 23 and August 17, 1999. The July billing for the City of Coppell
contained a consumption of 53 (xl000) gallons for that facility (refer to attachment #3); thereby creating a net consumption of
2,032 (xl000) by the City of Coppoll.
We have included a bill in the amount of $659.18 for the net calculated consumption through the Sandy Lake Road metering
facility. ffyou have any questions regarding this additional billing, please feel free to call me or Tonia at 214/670-5886.
Sincerely.
Randy Stalnaker
Interim Manager
Whol6sale Services Division
attachments
c: Larry Patterson, Assistant Director - Waste~vater Operations
Mike Rickman, Assistant Director - Water 0pemtions
Aftred Boateng, Manager - Pmnping
John Wilson, Assistant Manager - Pumping
Water Utilities Department
W I
ho esale Services, City Hall. 1500 Marilia. Room 4AN, Dallas. Texas 75201, 214/670-5888, Fax 214/670-3154
A city utility I:m~4ding regional water and wastewater esrv:ces vital to public health an0 safely.
)~ COPPELL, TEXAS 75019
P.O. Box 478
Coppell, Texas 75019
972-462-0022
April 29, 1998
Phillip L. Boyd, Manager
City of Dallas
Wholesale Services Division
Wamr Utilities Depa~ huent
1500 Marilla Room 4 AN
Dallas, Texas 75201
Re: Rate of Flow Controller (WA 93-01)
Dear Mr. Boyd:
This letter is written in response to your April 21, 1998 letter concerning our intentions for the
existing metering station on Sandy Lake Road once the new meter vault is constructed at the
Village Parkway Pump Station. The City currently has several water projects underway in
addition to the new meter vault at Village Parkway. Those include some transmission lines and
an additional elevated storage tank. It is the City's intention to follow-up the completion of those
projects in addition to the new meter vault at Village Parkway Pump Station with an additional
contract to abandon the exist'rag metering station on Sandy Lake Road. The actual timetable is
unknown, but again it will follow the completion of the aforementioned projects.
If you should have any additional questions or need additional information please feel free to
contact me.
Kenneth M. Griffin, P.E.
Director of Engineering and Public Works
cc: Ted Dull, Water Utilities Sr. Crewleader
~le/kgriffm/wa9301/dalla~ .498
Prepared by I~umping operations 8064
Reservoir Level
change
July 23 1999 Friday 7.3 10,4
July 24 1999 Saturday 10.4 13.5
July 25 1999 Sunday 13.5 14.6
July26 1999 Monday 11,2 14.2
July 27 1999 Tuesday 14.2 15.0
July28 1999 Wednesday 8.2 11.5
July 29 1999 Thursday 11.5 12.5
July 30 1999 Friday 8.2 11.5
July31 1999 Saturday 11.5 14.7
Aug 01, 1999Sunday 14.7 15.7
Aug 02, 1999 Monday 10.0 13.3
Aug 03, 1999Tuesday 13.3 14.0
Aug 04, 1999Wednesday 4.9 7.9
Aug 05, 1999Thursday 7.9 8.9
Aug 06, 1999Fdday 2.5 5.8
Aug 07, 1999Saturday 5.8 8.9
Aug 08, 1999Sunday 8.9 12.0
Aug 09, 1999 Monday 12.0 15.2
Aug 10, 1999Tuesday 15.2 15.9
Aug 11, 1999Wednesday 2.9 6.2
Aug 12, 1999Thursday 6.2 7.1
Aug 13, 1999 Fdday 2.5 5.8
Aug 14, 1999Saturday 5.8 9.2
Aug 15, 1999Sunday 9.2 12.4
Aug 16, 1999Monday 12.4 15.4
Aug 17, 1999Tuesday 15.4 16.1
Subtotal Gain
Coppell #1 reservoir Capasity in M0.5
Reservoir Height 19
MG per ~ 0.026
Coppell # 1 RgFC Leak By
Gain in fi Pump Down Reservoir Level Gain in ft Pump Down
change
3.1
3.1
1.1 Pump Down 12.1 14.0 1.9 Pump Down
3.0
0.8 Pump Down 61 8,2 2,1
3.3
1.0 Pump Down 6.5 8.2 1.7
3.3
3.2
1.0 Pump Down 12.3 13.3 1.0 Pump Down
3.3
0.7 Pump Down 2.7 4.9 2.2
3.0
1.0 Pump Down 1.0 2.5 1.5
3.3
3.1
3.1
3.2
0.7 Pump Down 0.8 2.9 2.1
3.3
0.9 Pump Down 0.4 2.5 2.1
3.3
3.4
3.2
3.0
0.7 Pump Down 3.5 5.6 2.1
Subtotal Gain
Total Gain in ft '
62.1
16.7
0.5
79.3
Reserve,jr LevelG~in in ~
cha lge
' 9.5 10.0 0.~'
Subtol~lGain
Total (:ain in ft79.3
MG 0.026:~
.MGool:g" ed .0,56
_)
water utilities
City FF~q AN · Dallas, Texas 75277 ·
ACCOUNT NUMBER 221-1100900-001
AMOUNT DUE $251,640 . 18
TRINITY RIVER AUTHORITY
%NORTHERN REGION OFFICE
PO BOX 240
ARLINGTON TX 76004-0240
PLEASE RETURN THIS PORTION WITH YOUR PAYMENT
PLEASE KEEPTHIS PORTION FORYOUR RECORDS
Customer: TRINITY RIVER AUTHORITY Account Number:
Service Address: SANDY LAKE RD
WHOLESALE
221-1100900-001
Billing Date: 8-06-99 Days Served: 28
ROFC Setting: 13.0@ $136,234.00 PER MGD DAILY DEMAND CHARGE: $4,912.46
SERVICE METER READ READ USAGE IN
PROVIDED NUMBER 06-30-99 07-28-99 1000 GALS. TOTAL
TREATED WATER 800075 617 617 0
TREATED WATER 800012 7624273 7624326 53
TREATED WATER 800045 2148666 2467114 318,448
TREATED WATER 800046 5341 5341 0
TOTAL VOLUME @ $0.3244 / 1000 GALLONS
318,501
103,321.72
OTHER TRANSACTIONS:
DEMAND CE~RGES FOR THIS PERIOD 28 DAYS @ $4,912.46
137,548.88
Coppell ROFC increase on 7/28/99
10,769.58
TOTAL AMOUNT DUE: $251,640.18
FOR INQUIRIES ABOUT YOUR BILL PLEASE CALL,
]WRITI~ OR ylSIT OUR OFFICE AT QIT,/HAL!,~RVAY ST