1989-1792651L-9/3689
NO n //9
AN ORDINANCE AUTHORIZING THE EXECUTION OF A CHANGE ORDER TO A
CONTRACT BETWEEN THE CITY OF DENTON AND DBS ESCHER WYSS, PROVID-
ING FOR AN INCREASE IN THE CONTRACT PRICE, AND PROVIDING AN
EFFECTIVE DATE
WHEREAS, on December 12, 1987, the City awarded a contract for
the construction of certain improvements to the DBS Escher Wyss in
the amount of $1,358,970 00, and
WHEREAS, the City Manager having recommended to the Council
that a change order be authorized to amend such contract with
respect to the scope and price 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
SECTION I That the change order to the contract between the
City an DBS Escher Wyss, a copy of which is attached hereto, in
the amount of Seventy-Two Thousand Four Hundred Fourteen Dollars
($72,414 00), is hereby approved and the expenditure of funds
therefor is hereby authorized
SECTION II That this ordinance shall become effective
imme ate y upon it passage
PASSED AND APPROVED this
ATTEST
and approval
day of CIt_ 1989
RAY ST S, AYOR
4" TERS, CITY SECRETAKY
APPROVED AS TO LEGAL FORM
DEBRA ADAMI DRAYOVITCH, CITY ATTORNEY
BY
CHANGE ORDER/CON RACT REVISION
r CITY OF DENTON, TEXAS OWNER
DISTRIBUTED TOw OWNER CONTRACTOR
BID# 9735
PROJECT: Lewisville Hydroelectric
ADDRESS= DBS ESCHER WYSS
555 rue Notre Dame
Lachine (Montreal)
Quebec, Canada, HSS 2B1
(514) 485-2700
CHANGE ORDER NO..
DATED.
CONTRACT DATE I December 8, 1987
THIS CHANGE ORDER/REVISION MAKES THE FOLLOWING CHANGES IN THIS
CONTRACT.
1. Brake system $ 8,000
2 Spare parts for turbine generator 35,415
3. Electrical spare parts 14,000
4 Training 15,000
TOTAL $72.415
The original (Contract Sum)
..S
1,358,970 00
Net change by previously authorized Change orders
.,S
123,783 60
I The (Contract Sum) prior to this Change Order...
..S
1,482,753 60
I The (Contract Sum) will be (increased)()
I
Ogmralk79x1gr d) by this Change Order
72,415 00 I
I The new (Contract Sum) including this Change order
will be
...5
I The Contract time will be (xRcsm*n&d) (d*paSSk&*vA)
I
(unchanged) by
DAYS
( The date of substantial completion as of the date
of
this Change order therefore is
December, 1989
-
I
I
I
As above Citv of Denton
I
I CONTRACTOR OWNER
I
901-A Texas
Street
ADDRESS ADDRESS
I
Denton. TX
i
76201
BY
DATE
BY
DATE
004.DOC
Dec, `er 6. 1989
CITY COUNCIL AGENDA ITEM
T0- MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM Lloyd Harrell, City Manager
SUBJ CONSIDER ORDINANCE APPROVING CHANGE ORDER EXERCISING THE OPTION
TO BUY SPARE PARTS AND TRAINING FROM DOMINION BRIDGE SULZER
(DBS), ESCHER WYSS CONTRACT FOR LEWISVILLE HYURDELECTRIC PROJECT.
RECOMMENDATION.
The Public Utilities Board, at their meeting of November 21, 1989,
recommended to the City Council approval of Change Order in the
amount of $72,415 00, to Dominion Bridge Sulzer, contract for a brake
system, spare parts for turbine/generator, electrical spare parts,
and training for Lewisville F(ydroelectric project.
SUMMARY/BACKGROUND. awar furnDishinger turbine/generator CityiCthouncil
its auxiliary heequipment for
Lewisville project to Dominion Bridge Sulzer, Inc , (DBS) The DBS
bid proposal has listed the costs of spare parts for the turbine/
generator and electrical equipment, personnel training for order at a
later date Black A Veatch, Project Consultants, recommends the City
to order the above items, plus a brake disc system for complete stop
of water flow in case of hydro unit shut down for maintenance The
breakdown casts are listed below
1 Brake disc system $ 8.000.00
2 Spare parts for turbine/generator 350415.00
3. Electrical spare parts 14 000 00
4 Personnel training 15.000 00
Total $12,414 00
PROGRAMS, GROUPS OR DEPARTMENTS AFFECTED.
Electric costs for water and sewer rate payers. Electric Utility
Department for maintenance and operation.
FISCAL IMPACT-
The project is in the Capital Improvements Plan in the amount of
$3,953,000. The unit will generate approximately 12,000,000 KWH
annually.
CC Agenda Item
Page 2
Respectfully submitted,
oy arre ,
Manager
Prepared by,
u ` u os, rec or o
Electric utilities
Approved by,
e son, xecu ve rec
Department of Utilities or
Exhibit I DBS Letter Dated October 27, 1989
II Black & Veatch Recommendation
III Subject Change Order
IV PUB Minutes of November 21, 1989
V Ordinance
6573U 3
V'+
r-~
I
D8s CBCH Y8S
555 rue Notre Dame La0hihe(MOntr(Ial) Canada HSS 2B1
TAI (514) 485 2700 Telex 05 822683 T616copieur (514) 634 8644
V v
October 27, 1989
Black & Veatch Engineers
Architects
1500 Meadow Lake Parkway
Kansas City, Missouri 64114
U.S A
J
Via Telecopier
(913-339-2934)
I d9
City of Denton Purchasing
901-8 Texas Street
Denton, Texas
76201, U S.A.
Attn Mr John J Marshall
Purchasilla Agent
Attention: Mr, W.S Rothgeb
Reference: City of Denton, Texas
Lewisville Hydroelectric Project
Specification No, 62 0200
B & V Project No. 10566
DBS EW Contract 720-110
SUBJECT CREEP BRAKE S STEM
Sir,
With reference to your letter of June 16, 1988, we are pleased to
quote a hydraulically operated creep brake system at a price of
$ 8,000 (U.S. Funds), FOB Denton, Texas, excluding state and local
taxes
The brake would be a 24" diameter disc installed behind the
generator flange, held in place by the coupling bolts The disc
will be of split design,
A pressure switch will signal to the governor when the brake is
applied.
The brake to be activated at 30% of rotational speed The stopping
time would be about 60 occonds.
.../2
MG E$WIk WYBs
r^
Black & Veatch
Page 24
Please do not hesitate to contact us if we may be of further
service,
Yours truly,
DBS ESCHER WYSS
Frederik R van der Veen
Project Manager
C.C. Z Burney
J. P. Cloot
T. P. Taylor
FV19/yv
It LACK & VRAT C H
TEL 14131330.2000
city of banton, Texas
Lewisville Hydroelectric Project
Spare Partsl Training, and slake system
City of Denton
Municipal Building, 415 east McKinney
Dentonp Texas 16401
Attentions Mr. Joe Cherri
Cantl spans
ISM MLADOw LAKB PARKWAY
MAILING AOb1efl Po Sox NO NOi
KANSAS CITY 114WR1 44114
80 Project 10566
80 Pile 644400
November 6, 1989
D1111-2fichar Wyss to or request
items certain
deleted delete
raduce the overall
p
purchase ackage cost from $13,000 to $140000. Our recommendation is that the City
discussed in oures SmedJfLs4 eptember 6, n1989kletter t and price
modified 4electrical
package tat a price of $140000).
Des has advised us that the revised price for the optional training program
described in the contract is $15,000. Dee indicated that a decision oa
this should be made soon.
One additional item which we had investigated last year is a hydraulically
operated creep brake system. Dos is now quoting us a price of $8,000 for
this system. Ma recommend that the City purchase this brake system. Due
to wicket gate leakage, the unit will continua to rotate slightly when the
wicket gates are closed. This means that the auxiliary systems, such as
lubs oil supply and cooling water supply will have to continuo operating
when the unit is downy thus using power from the grid. Rotation also
presents safety problems during maintenance activities.
Vary truly yours,
BLACK 6 WATCH
JAV
eel trait Tullos
~F
D. ol,yot
Excerpt from Minutes of Public Utilities
November 21, 1989
11
Laney made a motion to approve the Change order in the
amount of $72,415 to Dominion Bridge Sulzer, for a
contract for a brake system, spare parts for
turbine/generator, electrical spare parts and training
for Lewisville hydroelectric project Second by Chew
All ayes, no nays, motion carried