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Home My WebLink AboutItem III (D) Acceptance and Authorization to Execute Final Change Order to CenState Contractors for WWTP #2 in the Amount of $13,063.23 AGENDA 8-20-91 Ocoee Item III D • �yo t, �+ o N.?2 James W. Shira P.E. of Goo' CITY ENGINEER/UTILITIES DIRECTOR 150 N. LAKESHORE DRIVE OCOEE, FLORIDA 34761 (407)656-2322 DATE: August 12, 1991 TO: The Honorable Mayor and Board of City Commissioners FROM: James W. Shira, P. E 6 ' City Engineer/Utilities Director SUBJECT: Final Change Order - WWTP # 2 The first of two planned phases of the expansion of Wastewater Treatment Plant # 2 is now complete. During the course of construction, numerous issues arose that individually, were too minor to justify the time and expense of individual change orders. Now that construction is complete, we have consolidated all of these changes into one group which comprises a Final Change Order, in the amount of $13,063 .23 . The Final Change Order is 1.21% of the initial contract amount of $1, 076, 600.00, which is a very low percentage for a project of this size and complexity. I recommend that the City Commission authorize the Mayor and City Clerk to execute this Final Change Order in the amount of $13, 063.23 . JWS/jr THE PRIDE OF WEST ORANGE Adjustment as of Final Change Order Change Order No. 1 (Short title of Change Order) CHANGE ORDER FORM CITY OF OCOEE PROJECT: WASTEWATER TREATMENT PLANT NO. 2 PHASE IA EXPANSION CHANGE ORDER NO. 01 DATE: 7/16/91 CONTRACTOR: CenState Contractors, Inc. OWNER: CITY OF OCOEE, FLORIDA AGREEMENT DATE: Oct. 2 . 1990 The following changes are hereby made to the CONTRACT DOCUMENTS: )riginal CONTRACT PRICE $ 1, 076. 600.00 Current CONTRACT PRICE ADJUSTED by previous CHANGE ORDER* $ -0- Net (Increase) (Dccrca=c) Resulting from this CHANGE ORDER $ 13 ,063 .23 The current CONTRACT PRICE including this CHANGE ORDER $ 1, 089.663.23 ORIGINAL CONTRACT TIME: 240 Days Date May 31. 1991 Current CONTRACT TIME adjusted by previous CHANGE ORDERS Date Mav 31, 1991 Net (Increase) (Dccrcto) Resulting from this CHANGE ORDER Days 55 days Current CONTRACT TIME Including this CHANGE ORDER Date July 25, 1991 CHANGES ORDERED: 00842-1 OE-130/3.0 I. GENERAL This change order is necessary to cover changes in the work to be performed under this Contract. The GENERAL CONDITIONS, SUPPLEMENTARY CONDITIONS, SPECIFICATIONS and all parts of the Project Manual listed in Article 1, Definitions, of the GENERAL CONDITIONS apply to and govern all work under this change order. Change Order No. 01 Item 3I. REQUIRED CHANGES III. JU• STIPICATION No. ............. .. 1. Revisions in Chlorination System Per O.C. Environmental Protection (Scales) Dept. Permit 2. Replace shingles on lab/office roof Initiated by City to repair old roof 3. Delete 18" G.V. from feed line from Initiated by PEC to save cost of this process tank temporary valve 4. Add cost of larger electrical pull box- Initiated by PEC to save cost for next es phase of Project 5. 30" pipe tie-in to 10" pipe to avoid Unknown site conditions dictated this existing water line change. 6. Addition of two steps for clarifier Initiated by PEC to eliminate unsafe walkways step-up 7. Relocation of chlorine control panel & Initiated by City to avoid possible wire alarm damage by chlorine cylinders 8. Delete resurfacing of paving in road This road work would have been damaged during next phase 9. New ultrasonic flow meter for chlorine Existing flow meter had been damaged contact chamber by lightning 10. Provide gate, ladder and grate in both Initiated by City to provide safe ac- clarifiers cess into clarifier trough 11. Change electrical service to scum Initiated by City as an added safety trough to 24 volts precaution 12. Change all hose bibs from 3/4" to 1" Initiated by City to provide increased water supply capacity 13. Install vented plate over mixed liquor Initiated by PEC to avoid possible effluent box splash-out 14. Delete filters and testing of existing Initiated by City to save unnecessary blower cost 15. Provide new chlorine cylinders grab bar Initiated by City due to inadequate existing grab bar 16. Delete cost of extra Engineer review Initiated by PEC to recover cost for time for clarifier equipment excessive review time* * Item No. 16 was added to recover for the City the cost of excessive review and coordination time necessary for PEC to work out problems initially encountered with the clarification equipment. 00842-2 0E-130/3.0 1 IV. PAYMENT Following Change Order approval, the Contract Price will be increased accordingly. V. NARRATIVE OF NEGOTIATIONS Itea .Amount Time Amount (Time : No. .i Description of Change • submitted . Requested Approved: . Approved.,'. 1. Revisions in chlorination system 5991.31 -0- 5991.31 -0- (scales) 2. Replace shingles on lab/office 2896.79 2 2896.79 2 roof 3. Delete 18" G.V. from feed line (5698.62) -0- (5698.62) -0- from process tank 4. Add cost of large electrical pull 742.86 -0- 742.86 -0- boxes 5. 30" pipe tie-in to 10" pipe to 875.00 -0- 875.00 -0- avoid exist. water line 6. Addition of two steps for clari- 437.32 14 437.32 14 fier walkways 7. Relocation of chlorine control 1183.39 -0- 1183.39 -0- panel & alarm 8. Delete resurfacing of paving in (780.00) -0- (780.00) -0- road 9. New ultrasonic flow meter for 4373.16 30 4373.16 30 chlorine contact chamber 10. Provide gate, ladder and grate in 3222.42 30 3222.42 30 both clarifiers 11. Change electrical service to scum 602.19 30 602.19 30 trough to 24 volts 12. Change all hose bibs from 34/" to 570.41 -0- 570.41 -0- 1" 13. Install vented plate over mixed 570.00 ? 570.00 -0- liquor effluent box 14. Delete filters and testing of ex- (1106.09) -0- (1106.09) -0- isting blower 15. Provide new chlorine cylinders 416.09 -0- 416.09 -0- grab bar 16. Delete cost of extra engineer re- (1,233.00) -0- (1,233.00) -0- view time for clarifier equipment TOTAL 13,063.23 55 _ $13,063.23 55 Invoices for additional materials were supplied by the Contractor and verified by PEC. As reflected in the proceeding chart, none of these prices needed to be reduced, as they all appeared fair. The additional time requested and approved was based on the latest long lead item given tentative approval by the City of Ocoee. On June 24, 00842-3 0E-130/3.0 1991, oral approval of the proposed cost was obtained to change the electrical service to the clarifier scum trough from 110 volt to 24 volts. Thirty days from June 24, 1991 allows for a final completion date of July 25, 1991. Actual installation for Item numbers 9 and 10, Flow Meter and Gate/Ladder respectively, might not occur until August 6, 1991, due to manufacturer's delay in delivery of these items to the Contractor. VI. APPROVAL AND CHANGE AUTHORIZATION Item ,: Initiation of Tentative•Approv No Description of Change ! Change al .< BY Data BY,.. ..:`. Date: 1. Revisions in chlorination system (scales) Ocoee 9/20/90 Ocoee 2/7/91 2. Replace shingles on lab/office roof Ocoee 11/26/90 Ocoee 2/11/91 3. Delete 18" G.V. from feed line from pro- PEC 2/21/90 PEC 2/18/91 cess tank 4. Add cost of larger electrical pull boxes PEC 2/21/91 Ocoee 6/24/91 5. 30" pipe tie-in to 10" pipe to avoid ex- PEC 3/6/91 PEC 5/2/91 ist. water line 6. Addition of two steps for Clarifier walk- PEC 5/2/91 Ocoee 6/24/91 ways 7. Relocation of chlorine control panel & Ocoee 6/3/91 Ocoee 6/24/91 wire alarm 8. Delete resurfacing of paving in road PEC 6/3/91 Ocoee 5/2/91 9. New ultrasonic flow meter for chlorine Ocoee 6/4/91 Ocoee 6/19/91 contact chamber 10. Provide gate, ladder and grate in both Ocoee 6/7/91 Ocoee 6/25/91 clarifiers 11. Change electrical service to scum trough Ocoee 6/10/91 PEC 6/24/91 to 24 volts 12. Change all hose bibs from 3/4" to 1" Ocoee 6/10/91 PEC 7/12/91 13. Install vented plate over mixed liquor PEC 6/5/91 PEC 7/16/91 effluent box 14. Delete filters and testing of existing Ocoee 6/25/91 Ocoee 7/12/91 blower 15. Provide new chlorine cylinders grab bar Ocoee 6/19/91 Ocoee 7/12/91 16. Delete cost of extra engr. review time for PEC 7/11/91 PEC 5/17/91 clarifiers 00842-4 0E-130/3.0 Acknowledgements: The aforementioned change, and work affected thereby, is subject to all provisions of the original contract not specifically changed by this Change Order; and, It is expressly understood and agreed that the approval of the Change Order shall have no effect on the original contract other than matters expressly provided herein. CONTRACTOR acknowledges, by its execution and acceptance of this Change Order, that the adjustments in Contract Price and Time shown hereon constitute full and complete compensation and satisfaction for all costs and modifications of performance time incurred by the CONTRACTOR as a result of this Change Order. No other claim for increased costs of performance or modifications of time will be granted by the OWNER for the Work covered by this Change Order. The CONTRACTOR hereby waives and releases any further claims for cost or time against the OWNER arising from or relating to the matters or Work set forth or contemplated by this Change Order. Change Order Request by: City of Ocoee, Florida Change(s) Ordered by: RECOMMENDED BY: ACCEPTED BY: PROFESSIONAL ENGINEERING CONSULTANTS, INC. CenState Contractors, Inc. Engi r41 / / , Contractor �� , Bf. By: y: Signature B.SCOTT SHORT S ign¢ature Date: O( O7'd1 Date: August 7. 1991 Title: 'Vc,E Title: President APPROVED BY: City of Ocoee, Florida Owner By: Date Signature Lester Dabbs, Jr. , Mayor Change Order No. Attest: Jean Grafton, City Clerk 00842-5 0E-130/3.0