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Home My WebLink About1989-1792651L-9/3689 • 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 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 ofCIt_ 1989 RAY ST S, fjAYOR APPROVED AS TO LEGAL FORM DEBRA ADAMI DRAYOVITCH, CITY ATTORNEY BY CHANGE ORDER/CONTRACT REVISION r CITY OF DENTON, TEXAS OWNER DISTRIHDTED 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 s 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 1 4 Training 15,000 TOTAL $72 415 1 The original (Contract Sum) .... ... .. ..S 1,358,970 00 Net change by previously authorized Change Orders .,S 123,783 60 I The (Contract Sum) prior to this Change Order... ..$ 1,482,753 60 I The (Contract Sum) will be (increased)() 1 0gmralk79x1gr d) by this Change Order ....... .... , , S 72,415 00 I I The new (Contract Sum) including this Change Order 1 1 will be ... .. ... . .. .... ...$ 1 I The Contract time will be (xRCZM*a&d) (d*gx & ) I (unchanged) by .. .... ... DAYS I The date of substantial completion as of the date of this Change Order therefore is 1989 1 -December, I I I As above Citv of Denton I RA I CONTCTOR OWNER I 1 901—A Taxae Street 1 ADDRESS ADDRESS i Denton. TX 76201 BY DATE 004.DOC BY DATE Dec, `er 6. 1989 CITY COUNCIL AGENDA ITEM TO- 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 HYUROELECTRIC 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 hydroelectric project. SUMMARY/BACKGROUND. OnDecember turbine/generator the i withouncil its auxiliary hebid equipment 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 350416.00 3. Electrical spare parts 14 000 00 4 Personnel training 15.000 00 Total $72,414 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, Lloyd arre , Manager Prepared by, u ` ullost 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 r-� � 11 I D8� CSCH Yes 555 rue Notre Came La0hihe(Montr(Ial) Canada HSS 2B1 T61 (514) 485 2700 Telex 05 822683 T616copieur (514) 634 8644 October 27, 1989 Black & Veatch Engineers Architects 1500 Meadow Lake Parkway Kansas City, Missouri 64114 U.S A J Via Telecopier (913-339-2934) 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. 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 & VRATC H city of Denton, Texas Lewisville Hydroelectric Project Spare Partel Training, and slake system City of Denton Muaicipal Building, 215 east McKinney Dentonp Texas 76201 Attentions Mr. Joe Cherri Cantlemans TEL 19131330•2000 ISM MLADOw LAKB PARKWAY MAILING AOb1efl IID NOR NO NOi KANSAS CITY M4SOLINI441I4 80 Project 10566 80 Pile 62.0200 November 6, 1989 to D1111-2fichar ,The deletedest to elete itemscertain items raduee the overall Package cost from 413,000 to $140000. Our recommendation is that the City Purchase discussed bin our oth e6 September 6,n1989kletter age tand pthe modified rice Of 4electrical package tat a price of p140000). Des has advised us that the revised price for the options, training program described in the contract is $15,000. Dog indicated that a decision oa this should be made soon. One additional item which we had investigated last year is a hydraulically oparattd creep brake system. Del is now quoting us a price of $)5,000 for this system. Ma recommend that the City purchase this brake system. Due to wicket gate leakage, the unit will continue 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 downp thus using power from the grid. Rotation also Presents safety problems during maintenance activities. Vary truly yours, BLACK 6 WATCH �F D. !. oayot JAV eel trait Tullos 11 Excerpt from Minutes of Public Utilities November 21, 1989 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