1988-0260923L
NO fa.~
AN ORDINANCE AUTHORIZING THE EXECUTION OF A CHANGE ORDER TO A
CONTRACT BETWEEN THE CITY OF DENTON AND TONTO CONSTRUCTION, INC
FOR AN INCREASE IN THE CONTRACT PRICE, AND PROVIDING AN EFFECTIVE
DATE
WHEREAS, on February 17, 1987, the City awarded a contract
for the construction of certain improvements to the City's Water
Treatment Plant Project, and
WHEREAS, the City Manager having recommended to the Council
that a change order be authorized to amend such contract and said
change order being in compliance with the requirements of Chapter
252 of the Local Government Code, NOW, THEREFORE,
BE IT ORDAINED BY THE COUNCIL OF THE CITY OF DENTON
SLCTION I That the change order to the contract between the
City an Tonto Construction, Inc , a copy of which is attached
hereto, in the amount of Twenty-one Thousand Five Hundred
Sixty-five Dollars and Eighty-nine Cents ($21,565 89), is hereby
approved and the expenditure of funds therefor is hereby
authorized
SECTION II That this ordinance shall become effective
imme ate y upon its passage and approval
PASSED AND APPROVED this the 2nd day of February, 1988
RAY S FNS, MAYOR
ATTEST
J IFER AL 'RS, CITY SECRETARY
A ROVED AS TO LEGAL FORM
DEBRA ADAMI DRAYOVITCH, CITY ATTORNEY
BY //~KJ v
DATE February 2, 1988
CITY COUNCIL REPORT
TO Mayor and Members of the City Council
FROM Lloyd V Harrell, City Manager
SUBJECT BID# 9657 WATER TREATMENT UPGRADE PHASE II
CHANGE ORDERS #9, 10, 11
RECOM11ENDATION We recommend these change orders be approved to the above
contract to Tonto Construction, Inc as shown on the attached pages The change orders
total $21,565 89
SUMMARY This is Change Order #9 - $4,238 19, Change Order #10 - $1,857 44
ann CFange Order #11 - $15,470 82 These change orders in addition to the change
orders 1 through 8 make a total of $89,402 26 They also add a total of thirty-five work
days for a new completion date of July 18, 1988
BACKGROUND, Copy of Revised Purchase Order #81945 for change orders for this
Ffsal Y-ea and back-up information from the Utilities Department
PROGRAMS, DEPARTMENTS OR GROUPS AFFECTED
Utilities Department and completion of contract for upgrade as
shown above
FISCAL IMPACT There is no additional impact on the General Fund
Respectfully submitted
,
oy Harre 1
City tanager
Prepared by
/Wame John J Marshall, C P M
Title Purchasing Agent
Approved
fame John J Marshall, C P M
'Title, Purchasing Agent
CITY OF DENTON, TEXAS
901-8 TEXAS STREET PURCHASE ORDER DENTON, TX 76201
P 0 NUMBER DATE/VENDOR NO
81945 12/02/81
TON49000
S06
DOCUMENT
TYP
5
VENDOR
TONTO CONSTRUCTION
2417 W9 PARK ROW9SUITE 200
ARLINGTON9TX 76013
4wO V :.aA.
SHIPTO
CITY OF DENTON9
WATER PRODUCTION
1701-B SPENCER ROAD
DENTON, TX 76205
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ITEM
ACCOUNTNUMBER
^
UNITS NUMBER
DESCRIPTION BID NO
LINEAMOUN
01
623
008
0460
9101
1
CHANGE
ORDER
96 COSTIC TANK
299802.14
02
623
608
0460
9101
REPLACEMENT
03
623
008
0460
9101
CHANGE
ORDER
#5
19253.85
04
623
008
0460
9101
CHANGE
ORDER
97
3,204.25
05
623
008
0460
9101
CHANGE
ORDERi8
89520.15
06
623
008
0460
9101
1
CHANGE
ORDER
D 9
49238.19
07
623
008
0460
9101
1
CHANGE
ORDER
A 10
1.857.44
08
623
008
0460
9101
1
CHANGE
ORDER
0 11
159470.26
The City of Denton, Texas Is tax exempt-House Bill No 20 TOTAL FOR R O Ra_3na_fA
Reference P 0 Number on all BIL, Shipments and Invoices
Shipments are F 0 B City of Denton, ores Indicated
By
Send Invoices TO
City of Denton, Accounts Payable
218 E McKinney St, Denton, TX 78201
(or as Indicated on Purchase Order)
Direct Inquiries TO
John J Marshall, C P M Purchasing Agent
Tom D Shaw, C P M Aset Purchasing Agent
8171688-8311 DIFW Metro 287-0042
The City of Denton Is an equal opportunity employer
February 2, 1988
CITY COUNCIL AGFNDA ITFM
TO MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM Lloyd Harrell, City Manager
SUBJECT CONSIDER CHANGE
TREATMFNT PLANT
$21,566 45
ORDERS #9, #10, AND #11, DENTON WATFR
UPGRADE - PHASE II, IN THE AMOUNT OF
RECOMMENDATION
The Public Utilities Board, at their meeting of January 13,
1988, recommended to the City Council approval of Change Orders
#9, #10, and #11 in the amount of $21,566 45
BACKGROUND
Change Order 09 is to modify the bathroom fixtures in the
operations Building addition and also to revise ammonia piping
to provide larger 1" diameter ammonia feed piping throughout the
plant and to provide ammonia gas valves to allow selection of
feed points at the ammoniators
Change Order #10 is to modify the foundation of the Operations
Building so as to avoid conflicts with the power conduit and to
install a 40 amp, 3 phase breaker in the power panel "PA" and to
make necessary connections to secure power to the Air Cooled
Condensing Unit
Change Order #11 is to furnish and install a 3" glavanized
washdown line at the settling basins and replacement anchor
bolts for the sluice gates
SUMMARY
The City Council awarded the contract to Tonto Construction,
Inc on February 17, 1987, in the amount of $3,592,000 With
the previous change orders of $67,835 81 and these change orders
for $21,566 45, we now have a revised contract amount of
$3,681,402 26, and a new completion date of July 18, 1988
Overall percent of change order is 2 49%
PROGRAMS DEPARTMENTS OR GROUPS AFFECTFD
City of Denton, Denton Municipal Utilities, Freese & Nichols,
Inc , Tonto Construction, Inc , and the Citizens
Page 2
FISCAL IMPACT
Budgeted Amount
Original Contract Amount
Change Orders Prior to this Date
Current Contract Amount
Change Order #9
Change Order #10
Change Order #11
Revised Contract Amount
Total Amount of Change orders
to this Date
Change Orders as a Percent of the
Original Contract Amount
Original Completion Date June 13, 1988
Change in Time Due to Previous Change Orders
$49000,000 00
3,592,000 00
67.835 81
4,238 19
1,857 44
15 470 82
$3,, t) S I 2-27
$89,402 26
2 49%
22 days
Change in Time Due to Change orders 09, #10, and #11
Revised Completion Date July 18, 1988
13 days
Pespectfullv submitted,
Iloy arrell, qty Manager
Prepared b ,
R F Nelson, Executive Director
Department of Utilities
Approved by,
R e on, Executive Director
Department of Utilities
Exhibit I Change Orders #9, #10, and #11
II PUB Minutes of January 13, 1988
5274U 1-2
CHARGE OR EXTRA WORK ORDER
PROJECT Denton Water Treatment Plant Upqrade - Phase 2
CONTRACT: No 9657
OWNER City of Denton, Texas
CONTRACTOR Tonto Construction Co
CHANGE ORDER NO Nine 49) DATE November 24 1987
CHANGE OR EXTRA WORK TO BE PERFORMED
1 Modify color selection of bathroom fixtures in the operations
building addition
Amount to be added
2 Revise ammonia ping to provide 1 inch diameter
piping throughout the lant and provide ammonia gas
selection of feed poi is at the ammoniators
Amount to be added
Days to be added
$ 3 219 87
3
The compensation agreed upon in this Chanqe or Extra Work order is a
lull, complete and rinal payment for all costs the contractor may incur
as a result of or relatinq to this chanqe whether said costs are known,
unknown, roreseen or unrorseen at this time includinq without
limitation, any cost ror delay, extended overhead ripple or impact
cost, or any other errect on changed or unchanqed work as a result or
this Change or Extra work order
Previous Contract Amount
Net Increase in Contract Amount
Revised contract Amount
Net Chanqe in Contract Time of Completion
Revised contract time of completion
Recommended by
FREESE AMR jNNII~CCHOb3, INC
By ~L/lam ~zAw
T Date
Approved by
CITY OF DENTON
By
r
$1 018 32
ammonia feed
valves to allow
$ 3,659,835 81
4,238 19
$ 3,664,074 00
3 days
July 8, 1988
Approved by
TONTO CONSTRUCTION INC
By
Date
Date
CHANGE OR EXTRA WORK ORDER
PROJECT Denton Water Treatment Plant Upqrade - Phase 2
CONTRACT No 9657
OWNER. City of Denton Texas
CONTRACTOR Tonto Construction Co
CHANGE ORDER NO Ten (10) DATE December 29 1987
CHANGE OR EXTRA WORK TO BE PERFORMED
1 Modify foundation of Operations Buildinq to avoid conflicts with
power conduit as shown on attached drawings
Amount to be added $1 J70 41
2 Install 40 amp 3 phase breaker in power panel PA and make
necessary connections to secure power to Air Cooled Condensinq
Unit AC/4
Amount to be added $ 467 Os
The compensation agreed upon in this Change or Extra Work order as a
full complete and final payment for all costs the Contractor may incur
as a result or or relatinq to this change whether said costs are known
unknown foreseen or unforseen at this time includinq without
limitation any cost for delay extended overhead ripple or impact
cost or any other effect on chanqed or unchanged work as a result of
this Chanqe or Extra work Order
Previous Contract Amount
Net Increase in Contract Amount
Revised Contract Amount
Net Change in Contract Time of Completion
Revised contract time of completion
$ J 664 074 00
1,857 44
$ J,665 931 44
No Chanqe
July 8 1988
Recommended by
FREESE AND NICHOLS, INC
By /Z1;1-n
Date
Approved by
CITY OF DENTON
By
Approved by
TONTO ONSTRUCTI INC ,7
By / ~ t / ~lJ
/Date
Date
CHANGE OR EXTRA WORK ORDER
PROJECT Denton Water Treatment Plant Upgrade - Phase 2
CONTRACT No 9657
OWNER City o2 Denton, Texas
CONTRACTOR Tonto Construction Cc
CHANGE ORDER NO Eleven (11) DATE December 31 1987
CHANGE OR EXTRA WORK TO BE PERFORMED
1 Furnish and install 3 inch galvanized washdown line at settling
basins in accordance with attached drawinqs
Amount to be added
2 Furnish and install replacement anchor bolts tor
required and authorized by the Enqineer Bolts are
and installed complete at the tollowinq unit prices
5/8 inch dia S S Expansion Bolt $ lb
3/4 inch dia S S Expansion Bolt $ 22
5/8 inch dia S S Epoxy Set Bolt $ 57
J/4 inch dia S S Epoxy Set Bolt $ b5
Total amount authorized for this tor this item shall
5/b inch dia S S epoxy set bolts at $ 57 45 each
will be issued tor a credit tor unused bolts
Amount to be added
Days to be added
$ .1 447 00
10
The compensation agreed upon in this Chanqe or Extra Work Order is a
tull complete and Canal payment for all costs the Contractor may incur
as a result of or relatinq to this change whether said costs are known
unknown foreseen or untorseen at this time includinq without
limitation any cost for delay extended overhead ripple or impact
cost or any other ettect on changed or unchanced work as a result of
this Chanqe or Extra work order
Previous Contract Amount $ .1,6b4,074 00
Net Increase in Contract Amount 15 470 82
Revised Contract Amount $ j 679 544 82
Net Change in Contract Time of Completion 10 days
Revised contract time of completion July 18 1988
Recommended by
FREESE AND NNICHOOLS, INC
By 12131117
Date
Approved by
CITY OF DENTON
By
Approved by
TONTO CONSTRUCTIO , INC
l
BY ~7+e✓ CE-
ate
$ 12 02.1 82
sluice qates as
to be furnished
35
54
45
y0
be based on 60
A chanqe order
Date
rubLIG UTILITIhS BOARD
EXCERPT
MINUTES JANUARY 13, 1988
6
RS #9. #10 and
Dave Ham introduced this item explaining that the City Council
awarded the contract to Tonto Construction, Inc on February
17, 1987, in the amount of $3,592,000 With the previous
change orders of $67,835 81 and these change orders for
21,566 45, we now have a revised contract amount of
$3,681,402 26, and a new completion date of July 18, 1988
Overall percent of change order is 2 49%
The subject change order requests are as follows
1 Change Order #9 is to modify the bathroom fixtures in the
Operations Building addition and also to revise ammonia piping
to provide larger 1 diameter ammonia feed piping throughout
the plant and to provide ammonia gas valves to allow selection
of feed points at the ammoniators
2 Change Order #10 is to modify the foundation of the
Operations Building so as to avoid conflicts with the power
conduit and to install a 40 amp, 3 phase breaker in the power
panel 'PA" and to make necessary connections to secure power to
the Air Cooled Condensing Unit
3 Change Order #11 is to furnish and install a 3 glavanized
washdown line at the settling basins and replacement anchor
bolts for the sluice gates
Budgeted Amount $4,000,000 00
Original Contract Amount 3,592,000 00
Change Orders Prior
to this Date 67,835 81
Current Contract Amount $3,659,835 81
Change Order #9 4,238 19
Change Order #10 1,857 44
Change Order #11 15,470 82
Revised Contract Amount 037981,402 2
Total Amount of Change Orders
to this Date $89,402 26
Change Orders as a Percent of the
Original Contract Amount 2 49%
Original Completion Date June 13, 1988
Change in Time Due to Previous Change Orders 22 days
Change in Time Due to Change Orders #9, #10, and #11 13 days
Revised Completion Date July 18, 1988
LaForte made a motion to recommend to the City Council approval
of subject change order and the revised project completion
date Second by Chew All ayes, no nays, motion carried