WA9302A-CS 970228 SHIMEK, JACOBS & FINKLEA, L.L.P.
CONSULTING ENGINEERS
8333 Douglas Avenue, #820 Dallas, Texas 75225-5816 Fax (214) 361-0204 Phone (214) 361-7900
ROSS L. IACOBS, P.E.
RONALD V. CONWAY, P.E.
JOHN W. BIRKHOFF, P.E.
JOE n. CANTER, P.E. February 28, 1997
GARY C. HENDRICKS, P.E.
I. C. FINKLEA, P.E.
Mr. Kenneth M. Griffin, P.E.
City of Coppell
Post Office Box 478
Coppell, Texas 75019
Re: Village Parkway Pump Station Additions
Proposed Change Order No. 4 & 5
Dear Mr. Griffin:
We are enclosing two copies of proposed Change Orders No. 4 & 5 to the City' s contract with North Texas
Municipal Construction Co. for the construction of the Village Parkway Pump Station Additions. Change
Order No. 4 adds several items that have been identified during construction as needed on the project, yet not
included in the original scope of the project. Change Order No. 5 adds components to the SCADA System as
requested by the City. Both change orders more specifically describe the extra work proposed.
Change Order No. 4 adds $2,991.00 to the contract amount which represents less than a 1/2% increase in the
original contact amount. Change Order No. 5 totals $8,960.00, or an approximate 1% increase in the original
contract amount. To date the total of all change orders on the project, including proposed Change Order No. 4
& 5, is $162, 158.00 or approximately 17.38% of the original contract amount. As a reminder, Change Order
No. 2 added the SCADA System to this project and totaled $152,739.00
Please review the proposed change orders and notify us of your findings. The general contractor has stated he
is ready to complete the project within the next few weeks if we can get these outstanding issues resolved. We
are available to discuss this project further at your convenience.
Enclosure
cc: Mr. Larry Davis
CITY OF COPPELL, TEXAS
VILLAGE PARKWAY PUMP STATION ADDITION
PROJECT NO. WA-9302
BID NO. Ql195-02
CHANGE ORDER NQ, 4
A. INTENT OF CHANGE ORDER
The intent of this change order is to modify the provisions of the contract entered into by the City of Coppell,
Texas and North Texas Municipal Construction, Inc., 5614 Dyer Street, Dallas, Texas 75206, for construction
of the Village Parkway Pump Station Addition, dated January 9, 1996.
B. DESCRIPTION OF CHANGE
The City of Coppell desires to add the following additional items to the Village Parkway Pump Station
Additions Project. These items were not included in the original scope of contract work:
a) Furnishing and Installing lighting at the control panel for the disinfection system. The attached memo
dated January 17, 1997 from MrCreary & Associates specifies the work and equipment required.
b) Furnishing and installing Support System for the Cone Valves as shown on the attached Exhibit dated
December 4, 1996
c) For Eliminating the staircase to the motor control center platform and modify the two access ladders to
be no further than 8-inches from the edge of the platform. This work also includes the addition of a
handrail across the opening at the original ladder location.
d) For furnishing and installing insulation for the exposed chemical feed solution, sampling and
waterlines at the disinfection facility.
e) For furinshing and installing power feed to the overhead door opener.
f) For furnshig and installing 4" diameter, liquid filled pressure guages on the discharge headers of
Pumps No. 5 & 6.
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City of Coppell ~ ~
Village Parkway Pump Station Add~ .... ts
Change Order No. 4
C. EFFECT OF CHANGE ON CONTRACT AMQUNT
This change will have the following affect on the final contract amount:
Original Revised Change Revised
Item Contract Contract Order Unit Contract
No. Description Units Quantity Quantity Price Amount
20 For fumishing and installing lighting at the L.S. 0 1 $472 $472
Disinfection System Control Panel
21 For furnishing and installing supports for the L.S. 0 1 586 586
modified cone valve configuration
23 For modifying the motor control center L.S. 0 1 327 327
platform access ladders and handrail
24 For fumishing and installing insulation on the L.S. 0 1 883 883
exposed piping at the Disinfection Facility
25 For providing power feed to the overhead door L.S. 0 1 530 530
26 For adding two pressure gauges on the pump L.S. 0 1 193 193
discharge line
Total Amount of Change I I I $2,991
Original Contract Amount $933,000.00
Amount, Change Order No. 1 (5,000.00)
Amount, Change Order No. 2 152,739.00
Amount, Change Order No. 3 2,468.00
Amount, Change Order No. 4
$2,991
Revised Contract Amount $1,086,198.00
D. EFFECT OF CHANGE ON CONTRACT TIME
The changes identified above has no effect on the revised contract time.
Original Contract Time: 300 Calendar Days
Calendar Days, Change Order No. 1 0 Calendar Days
Calendar Days, Change Order No. 2 60 Calendar Days
Calendar Days, Change Order No. 3 0 Calendar Days
Calendar Days, Change Order No. 4 30 Calendar Days
Revised Contract Time 390 Calendar Days
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City of Coppell
Village. Parkway Pump Station Addi. ,s
Change Order No. 4
By the signatures below of duly authorized agents, the City of Coppell, Texas and North Texas Municipal
Construction Company, Inc., do hereby agree to append this Change Order No. 4 to the original contract
between themselves, dated January 9, 1996.
City of Coppe!l, Texas North Texas Municipal Construction Company, Inc.
Owner Contractor
By: By:
D ate: D ate:
Attest: Attest:
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CITY OF COPPELL, TEXAS
VILLAGE PARKWAY PUMP STATION ADDITION
PROJECT NO. WA-9302
BID NO. Q1195-02
CHANGE ORDER NO, 5
A. INTENT OF CHANGE ORDER
The intent of this change order is to modify the provisions of the contract entered into by the City of Coppell,
Texas and North Texas Municipal Construction, Inc., 5614 Dyer Street, Dallas, Texas 75206, for construction
of the Village Parkway Pump Station Addition, dated January 9, 1996.
B. DESCRIPTION OF CHANGE
The City of Coppell has requested the following additions or modifications to the SCADA System. The
attached proposal from Team Controls more specifically describes the proposed equipment.
a) Adding two (2) pressure point nodes at Coppell Road and Moore Road, utilizing existing phone data
lines and existing equipment where possible.
b) Adding an auto-switch over from the new level controls to the existing level controls at the Sandy
Lake Road and DeForest Lift Stations.
c) Adding HOA status input of each pump to the SCADA system at the Sandy Lake Road and DeForest
Road Lift Stations. The modification requires the addition of an extra mixed I/O module at each site.
This modification will also allow the City to monitor the rain gauge data at the Sandy Lake Road Lift
Station.
d) Installing the proposed RTU and antenna scheduled for the new elevated storage tank at the Sandy
Lake Road Pump Station in order to monitor the Dallas Water Utilities flow rate into Coppell. This is
expected to be a temporary installation and will be moved to the new tank upon construction of the
proposed DWU meter vault at the Village Parkway Pump Station.
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City of Coppell /~' T
Villag~ Parkway Pump Station Add~,ons
Change Order No. 5
C. EFFECT OF CHANGE ON CONTRACT AMOUNT
This change will have the following affect on the final contract amount:
Original Revised Change Revised
Item Contract Contract Order Unit Contract
No. Description Units Quantity Quantity Price Amount
27 Monitoring Pressure Points at Coppell Road L.S. 0 1 (~ St t2. $3,200 $3,200
and Moore Road
28 Sandy Lake Road &Deforest Road Lift L.S. 0 1 ~zt~o 63(~ 630
Stations level lxansmitter auto switch
29 Sandy Lake Road &DeForest Road Lift L.S. 0 1 2,840 2,840
Stations HOA Pump Status
30 Adding the DWU inflow to the SCADA system L.S. 0 1 2,290 2,290
by installing a RTU and Antenna at the Sandy
Lake Road Pump Station~
Total Amount of Change [ I I $8,960.
Original Contract Amount $933,000.00
Amount, Change Order No. 1 (5,000.00)
Amount, Change Order No. 2 152,739.00
Amount, Change Order No. 3 2,468.00
Amount, Change Order No. 4 2,991.00
Amount, Change Order No. 5
$8,960.00
Revised Contract Amount $1,095,158.00
D. EFFECT OF CHANGE ON CONTRACT TIME
The changes identified above has no effect on the revised contract time.
Original Contract Time: 300 Calendar Days
Calendar Days, Change Order No. 1 0 Calendar Days
Calendar Days, Change Order No. 2 60 Calendar Days
Calendar Days, Change Order No. 3 0 Calendar Days
Calendar Days, Change Order No. 4 30 Calendar Days
Calendar Days, Change Order No. 5 Calendar Days
Revised Contract Time 390 Calendar Days
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City of Coppell ?"" ~
Villag~ ParRway Pump Station Add,.. Jns
Change Order No. 5
E. AGREEMENT
By the signatures below of duly authorized agents, the City of Coppell, Texas and North Texas Municipal
Construction Company, Inc., do hereby agree to append this Change Order No. 5 to the original contract
between themselves, dated January 9, 1996.
City of Coppe!l, Texas North Texas Municipal Construction Company, Inc.
Owner Contractor
By: By:
Date: Date:
Attest: Attest:
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