WA9903-AG 991012CITY COUNCIL MEETING:
AGENDA RE~.UEST FORM
October 12, 1999 ITEM #
ITEM CAPTION:
Consider approval of awarding a contract to Shimek, Jacobs and Finklea Consulting Engineers to provide
professional services assdciated with the design and installation of Pump #4 at Village Parkway Pump Station
in an amount not to exceed $34,500; and authorizing the Mayor to sign.
suB~rr~D ~Y: K?~ ~.o'R~, ~..~...
See attached memo. ~~, ~! ~
BUDGET AMT. $
FINANCIAL COMMENTS:
AMT. EST. $
+\-BUD $
DIR. INITIALS: ~ FIN. REVIEW: CITY MANAGER REVIEW:
Agenda Request Form - Revised 2/99 Document Name: #10123
I ] i'
To:
From:
Date:
RE:
MEMORANDUM
FROM THE
DEPARTMENT OF ENGINEERING
Mayor and City Council
Kenneth M. Griffin, P.E., Dir. of Engineering/Public Works ~/,/
October 12, 1999
Consider approval of awarding a contract to Shimek, Jacobs and Finklea Consulting
Engineers to provide professional services associated with the design and installation
of Pump #4 at Village Parkway Pump Station in an amount not to exceed $34,500;
and authorizing the Mayor to sign.
In a continuing effort to upgrade the City' s water pumping capabilities and to continue to stay within
State guidelines as mandated by the Texas Natural Resources Conservation Commission (TNRCC)
the City of Copper needs to pursue the installation of the fourth large pump at Village Parkway
Pump Station. Currently there are 3 large pumps and 2 smaller pumps at the pump station. The
pump station was designed to install a fourth large pump and based on the growth in the City and
peak demands, it is time to install it. In addition to that work, several other items will also be
addressed at the pump station. One item that has been a concern of staff in the past is that there are
no isolation valves on the other three large pumps. In essence, this means that if a problem were to
arise with one of the three large pumps that necessitated removing the pump, then the entire pump
station would have to be shut down for a period of time. Obviously, this would be devastating
during peak water usage in the summer. The isolation valves would allow us to isolate any of the
three pumps to perform either maintenance or emergency work. We will also be upgrading the
power feed to the station based on review of the current usage and the anticipated usage with the
fourth large pump. Because we have a dual feed to the station, there is a need to replace two smaller
transformers with two larger transformers. The above work will bring the Village Parkway Pump
Station to its capacity in regard to pumping and storage.
The City of Copper is also in the process of updating our Water Master Plan to address other
pumping and storage needs. In the past few years, Council may recall that we have completed a six
million gallon ground storage tank, added two additional pumps, and replaced our Rate of Flow
Controller to allow us flow up to 28 million gallons a day, as opposed to the old Rate of Flow
Control which could only deliver 13.5 million gallons a day. We have also recently completed the
two million gallon elevated storage tank on the west side of Coppell and upgraded our SCADA
System. As can be seen by all these projects, there has been a steady progression of upgrades to the
water system to keep up with' demand. While the addition of the fourth pump is the next step in the
process, by no means is it the final step. The Water Master Plan update, which should be before
Council at the October 26, 1999 meeting for approval, will more than likely recommend a second
pump station along with additional ground storage at the second pump station.
To continue the progress on updating the City's water system, staff recommends approval of the
contract with Shimek, Jacobs and Finklea Consulting Engineers in an amount not to exceed $34,500,
and authorizing the Mayor to sign. Staff will be available to answer any questions concerning this
item at the Council meeting.
SHIMEK, JACOBS & FINKLEA, L.L.P.
CONSULTING ENGINEERS
8333 Douglas Avenue, #820
Dallas, Texas 75225-5816
Fax (214) 361-0204
Phone (:;14) 361-7900
ROSS L. JACOBS, P.E.
RONALD V. CONWAY, P.E.
JOHN W. BIRKHOFF, P.E.
JOE R. CARTER, P.E.
GARY C. HENDRICKS, P.E.
I. C. FINFLEA, P.E.
PAUL A. CARLINE, P.E.
MATT HICKEY, P.E.
September 29, 1999
Mr. Kenneth M. Griffin, P.E.
City of Coppell
Post Office Box 478
Coppell, Texas 75019
Re:
Engineering Services Proposal
Village Parkway Pump Station
Installation of Pump Number 4 and Isolation Valves for Pumps 1, 2 and 3
Dear Mr. Griffin: ~
As we discussed in our meeting dated September 16, 1999, we have evaluated the requirements for the
installation of Pump Number 4 at the Village Parkway Pump Station along with the insertion of pump isolation
valves on the existing pumps 1 through 3. The anticipated project scope includes:
0
Installation of Pump Number 4 to generally match the flow and head of the existing three pumps. Our
records indicate the pump size would be approximately 450 horsepower and deliver 7,000 gpm at 200 feet
total dynamic head. At this stage of preliminary evaluation, we have selected a Ingersoll-Dresser
(Worthington) model 10LR-18A pump with a 16-inch impeller as the basis for our preliminary cost
estimates and capacity calculation. Based on our evaluation of the existing hydraulic model, with all four
large pumps running, the Village Parkway Pump Station is expected to deliver in the range of 25 mgd
(17,400 gpm) during the maximum hourly demand condition.
In the meeting, the City confirmed the desire to utilize a pump control valve of a design other than the
cone valves currently in operation at the station. We recommend the City consider utilize a 16-inch tilted
disk check valve with a bottom-mounted dashpot in combination with a "soft start" motor control center.
This type of pump control produces a relatively low headloss across the valve. We have specified this
type of control valve operation for several other Cities with reasonable success.
Installation of this new fourth pump will require the replacement of the existing TxU 750 KVA
transformers with two new 2,000 KVA transformers. Normally, TxU does not charge for this change over
due to anticipated revenue for the expanded service. However, since the service is dual fed to this pump
station, we recommend that no less than one of the larger transformers be included in the project budget.
We have included both.
With the addition of pumps 5 and 6 and the greater flows now anticipated out of the Village Parkway
Pump Station, we discussed the replacement of the venturi flow meter station with a transit time meter.
This type of meter can accurately monitor a wide range of flows, produces essentially no headloss and is
easily maintained. The new meter can be installed in the existing meter vault and be readily connected to
Mr. Kenneth M. Griffin, P.E.
City of Coppell
September 29, 1999
Page Number 2
the existing SCADA System. For budget purposes we recommend the Badger Model 4500 transit time
meter with a windowed spool piece to replace the venturi tube.
Installation of isolation valves for Pumps 1, 2 and 3. This scope of work includes the re-configuration of
the pump discharge piping and the installation of 24-inch butterfly valves between the pump control valve
and the discharge header. This work must be carefully coordinated so that the pump station can remain in
service and most likely will include the temporary installation of 24-inch diameter blind flanges on the
discharge header.
Other miscellaneous items of work include Pump Station Piping, insulation, fittings and painting,
construction of a new concrete pad for Pump Number 4, construction of new concrete valve supports for
Pumps 1-3, and SCADA System modifications to monitor the new flow meter, pump and motor starter.
Based on the scope of the project and assumptions outlined above, our opinion of probable conslruction cost
for the addition of Pump Number 4 and the isolation valves for Pumps 1-3, exclusive of engineering, material
testing and quality control, is in the range of $310,000. We are enclosing our itemized opinion of construction
cost for your use and review. ~
We understand time is of the essence on the project. The following project schedule was discussed and is
anticipated:
Advertise Project:
Bid Opening:
Council Award:
Work Order Issued:
Pump Number 4 in Service:
Project Complete:
Nov. 26hh and Dec. 3'd, 1999
December 3, 1999
January 1 I, 2000
February l, 2000
May 1, 1999
May 31, 1999
After visiting with a pump manufacturer's representative, we have learned the lead time a standard 450
horsepower pump and motor, from purchase order to delivery to the project site, is between 16 to 18 weeks.
With the scheduled outlined above, the pump would not be delivered to the project site until the end of May
assuming the purchase order matched the work order date.
We have discussed this project schedule with our electrical sub-consultant and have reviewed our own
workload. With a focused effort, we believe we can have this project 95% complete within 10 working days
after notice to proceed is authorized. Assuming that occurs before October 15, 1999, we should be able to
advertise this project for bids by the end of October. The schedule could be moved forward even further if the
City was able to provide a purchase order to the contractor in advance or of even date with the award date.
Our engineering services for this project shall include the following:
BASIC SERVICES
A. DESIGN PHASE
Preparing plans and specifications for the installation of Pump Number 4 and isolation valves for
Pumps 1-3 at the Village Parkway Pump Station. If the project schedule dictates, we will prepare a
Mr. Kenneth M. Griffin, P.E.
City of Coppell
September 29, 1999
Page Number 3
separate bid package for the pumps, control valves and major electrical equipment. The design
phase services include:
· Construction Plan Sheets prepared at a scale of not less than 1"= 20'
· Standard Details
· Special Details, coordination requirements and construction sequencing
· Cover Sheet, Location Map and Sheet Index
· Submittals to State Regulatory Agencies, as required
· Preparation of required Highway and Utility Permits, as required
· Coordination with Utility Companies
· Design review meetings
· Opinion of Probable Construction Estimate
· Preparation of Specifications and Contract Documents
· Printing of preliminary l~ans and specifications for review by the City and Utility Companies
B. CONSTRUCTION ADMINISTRATION · Assist in Advertising for Bids
· Opening, Tabulation and Evaluating Bids received
· Consult with Owner as to actions based on Engineering matters
· Assist in execution of Contract Documents
· Make periodic visits to the job site
· Preparing and issuing routine Field Changes with the Owners approval
· Preparing and issuing routine Change Orders with the Owners approval
· Review of Shop Drawings, Test Reports and other data
· Preparation of Monthly and Final Pay Requests
· Conduct a Final Inspection with the Owner
· Preparation and delivery of one set of record drawings on mylar sepias to the City
II. SPF. CIAI. SF. RVICFS
· Design Surveys
· Printing of f'mal plans and specifications for distribution to prospective bidders and the successful
contractor
Mr. Kenneth M. Griffin, P.E.
City of Coppell
September 29, 1999
Page Number 4
For the above described services, we propose to be compensated on the following basis:
BASIC SF, RVICES:
Compensation for basic services shall be on a lump sum basis of $32,500 in accordance with the schedule
below.
A. Design Phase: ..................................................................$24,375
B. Bidding Phase ..................................................................$1,625
C. Construction Administration Phase: ..................................$6,500
H. SPECIAl. SERVICES:
Compensation for Special Services shall be based on salary cost times 2.30, with expenses at actual
invoice cost times I. 10. We suggest you budget approximately $2,000 in the following amounts for the
Special Services:
A. Design~r~_eys ........................................................$1,200
B. Printing of Final Plans and Specifications $800
Subtotal, Pump Station: $2,000
Payments are to be made on a monthly based on the percent complete of the design or construction phase for
the Basic Services, and based on the actual hourly expenditures for the Special Services.
If you are in agreement with this proposal, please have one copy executed on behalf of the City of Coppell and
returned to our office. We again look forward to working with you and the City of Coppell on this important
project and stand ready to begin work upon your authorization to proceed.
Gary C./~dricks
APPROVE F TI-IE~ CITY OF COPPELL
/
SHIMEK, JACOBS & FINKLEA, L.L.P.
CONSULTING ENGINEERS
Project No.
Client:
Project:
City of Coppell
Village Parkway Pump Station Additions
Installation of Pump Number 4 and Isolation Valves on 1, 2 and 3
Date:
By:
ENGINEER'S OPINION OF CONSTRUCTION COST
Item No. I Description ] Quantity [ Unit ] Price
Brief Project Description: ] [ I
Installation of Pump Number 4 to operate at 7,000 gpm at 200 TDH (450HP Ingersoll-Dresser 10LR-
18A) along with Tilted Disc Pump Control Valve and Soft Start Motor Control Center. Project includes
the installation of 24-inch butterfly valves on the discharge side of Pumps 1, 2 and 3.
Furnish 450 HP Pump and Motor: 7,000 gpm @ 200 Ft TDH
(Ingersoll-Dresser 10LR-18A) 1 L.S.
Installation of Pump Number 4 and Motor
Fumish and Install 16" Tilted Disk Pump Control Valve with
Bottom Mounted Dash-pot
9/29/99
3 Pump Number 4 - 4160v Motor Control Center and Soft Start
Replace existing TXU 750 KVA Transformer with 2000 KVA
4 Transformer
Remove existing Venturi Flow Tube and Transmitter and Replace
with Badger 4500 Transit Time Flow Meter with Windowed Spool
5 Piece
Furnish and Install 24" butterfly Isolation Valves on Discharge
6 Header of existing Pumps
7 Pump Number 4 - 30" Suction Side Isolation Valve
8 Pump Number 4 - 24" Discharge Side Isolation Valve
9 30" pump suction piping
10 24" pump discharge piping
11 Bends, Fittings, Reducers and Couplings
12 30-inch suction side pipe insulation
13 Pipe and Equipment Painting
14 SCADA System Modifications
Contingencies and Miscellaneous Items
Subtotal:
1
3
1
1
20
10
1
l
1
1
10%
GCH
Total:
Amount
$ 45,000.00 $ 45,000.00
l L.S. $ 25,000.00 $ 25,000.00
I Ea. $ 16,000.00 $ 16,000.00
1 L.S. $ 50,000.00 $ 50,000.00
2 Ea. $ 33,000.00 $ 66,000.00
$ 17,500.00 $ 17,500,00
$ 10,000.00 $ 30,000.00
$ 7,500.00 $ 7,500.00
$ 6,500.00 $ 6,500.00
$ 175.00 $ 3,500.00
$ 150.00 $ 1,500.00
$ 7,500.00 $ 7,500.00
$ 1,500.00 $ 1,500.00
$ 1,500.00 $ 1,500.00
$ 3,000.00 $ 3,000.00
$ 282,000.00
$ 28,200.00
$ 310,200.00
USE: $ 310,000.00
L.S.
Ea.
Ea.
Ea.
L.F.
L.F.
L.S.
L.S.
L.S.
L.S.
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