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Home My WebLink About07-249 SEPTEMBER 11, 2007 07 -249 RESOLUTION (CARRIED 7-0 LOST LAID OVER WITHDRAWN PURPOSE: APPROVE AMENDMENT TO AGREEMENT WITH CH2M HILL I KAEMPFER FOR PROFESSIONAL ENGINEERING SERVICES RELATING TO DEMOLITION AND MODIFICATIONS TO WATER FILTRATION PLANT ($178,720.00) INITIATED BY: DEPARTMENT OF PUBLIC WORKS BE IT RESOLVED by the Common Council of the City of Oshkosh that the attached Amendment to the Agreement between the City of Oshkosh and CH2M HILL I Kaempfer for professional engineering services related to demolition and modifications to the Water Filtration Plant is hereby approved and the proper City officials are hereby authorized to execute and deliver the amendment in substantially the same form as attached hereto, any changes in the execution copy being deemed approved by their respective signatures, and said City officials are authorized and directed to take those steps necessary to implement the terms and conditions of the Agreement as amended. BE IT FURTHER RESOLVED that money for this purpose is hereby appropriated from: Accl. No. 541-1810-1799-00000 Water Utility - Construction in Progress ATTACHMENT 1 - AMENDED SCOPEOF SERVICES City of Oshkosh Water Filtration Plant Modifications and Demolition Project Background Under the existing City of Oshkosh Water Filtration Plant (WFP) Modifications and Demolition Project (Project) professional services agreement, the CH2M HILLjKaempfer team was retained to provide engineering services for the design, public bid, and construction of the Project including the following major components: 1. Construction of one new concrete basin (approximately 1 million gallons) for chlorine contact and backwash supply. 2. Yard piping connecting (by gravity flow) the new basin to the GAC filter effluent line and existing finished water clearwells 2 through 4. 3. Demolition of the old plant West Sedimentation basin, East Sedimentation basin, clearwelllA and IB, and filtration facility. 4. Rehabilitation of the existing tower and rehabilitation and restoration of the building to enclose the exposed facilities after demolition. 5. Site grading and landscaping. Subsequent to retaining CH2M HILLjKaempfer for professional engineering services, the State of Wisconsin Department of Natural Resources (WDNR) conducted a sanitary survey of the City of Oshkosh Water Filtration Plan. In the Sanitary Survey Report, April 16, 2007, WDNR identified deficiencies with the Oshkosh waterworks and stipulated a timeline for corrective actions to be taken by the City. These deficiencies, as identified by WNDR, indicate noncompliance with current Wisconsin Administrative Codes. As requested, the City responded to WDNR by July 1, 2007, with a detailed plan for corrective action. This plan includes the following: Rehabilitate and Expand the High Lift Pump Station at the South Clearwell This work involves the demolition of the existing high lift pump station at the south clearwell and construction of a new pump station in the same location. The new pump station includes higher capacity pumps and new electrical service. Higher capacity pumps at the south clearwell are required to replace the high lift pump capacity in the old plant that is not compliant with NR 811, per the Sanitary Survey Report, April 16, 2007. New electrical service is required because the existing service at the south clearwell is a 4,160- volt, 3-phase system that is not compatible with the new WFP electrical system. The existing service will be abandoned and a new 480-volt, 3-phase service will be installed. Rehabilitate and Expand the Low Lift Pump Station in the Old Plant This work involves the partial demolition of the existing low lift pump station in the old plant and construction of new pump station in the same location. The new pump station will reuse the existing shorewells and have the same pumping capacity; however, pumping and electrical equipment will be located above finished grade in compliance with NR 811. The replacement low lift pump station will have new 480-volt, 3-phase electrical service. Improve Finished Water Clearwell Hatches This work involves the extension of existing personnel access hatches on the finished water clearwells to 2-feet above finished grade to positively prevent stormwater flow into the clearwells. Upgraded hatches include hardened locks to prevent intrusion. As a result of the corrective action plan, the scope of the Water Filtration Plant Modifications and Demolition Project was increase. The scope of engineering services is revised as described below. Revised Professional Engineering Services In addition to the Design Scope of Services described in original agreement, CH2M HILLjKaempfer will complete the following: Task 1 - Project Management and Communication To facilitate construction and enhance coordination, project management and communication activities will include participation in monthly progress meetings during construction by the project manager or the design manager. A total of 10 site visits will be made. Task 2.A - Preliminary Design Report The preliminary design report will include design criteria, conceptual facility layout, and process control descriptions for the rehabilitated and expanded low lift pump station, high lift pump station and intake flushing system. For the rehabilitated and expanded low lift pump station, it is assumed that the existing pump wetwells will be reused and that the wetwell walls will be extended to above finished grade to accommodate construction of a new at- grade low lift pump station with three new low lift pumps. For the rehabilitated and expanded high lift pump station, it is assumed that the existing clearwell sump will be reused for the installation of two new vertical turbine pumps. The new high lift pump station will be constructed on the clearwell similar to existing high lift pump station. Preliminary construction cost estimates will be prepared. An overview of the revised project scope and projected costs will be presented to the City Council. Cost proposals for subsurface geotechnical investigation will be solicited and evaluated. Task 2.8 - WDNR Engineer's Report The Project Engineer's Report submission to the WNDR will be revised to include the rehabilitated and expanded low lift and high lift pump stations and clearwell access hatch improvements. Task 3.A - Contract Documents The final contract documents for public bid will be expanded to include the drawings and specifications necessary to address the low lift pump station, the high lift pump station, the clearwell access hatches, and yard piping for intake flushing improvements. The revised anticipated drawing list is shown in Table 1. TABLE 1 Final Design Sheet list 1. Cover 2. Index to Drawings, Legend Designations 3. Abbreviations 4. Civil Legend 5. Structural Legend 6. Structural Notes 7. Mechanical Legend, Flow Stream Identification 8. Electrical Legend 9. Electrical Legend 10. I &C Legend 11. I&C Legend 12. Overall Site Demolition Plan 13. High Lift Pump Station Demolition Plan & Section 14. Low Lift Pump Station Demolition Plan & Section 15. Demolition Details 16. Site Grading Plan 17. Erosion Control & Stormwater Management Plan 18. Civil Details 19. Landscaping Plan 20. Landscaping Details 21. CnBWS Basin Architectural Elevations 22. High Lift PS Architectural Plan and Elevations 23. Low Lift PS Architectural Plan and Elevations 24. Architectural Details 25. Architectural Details 26. CT/BWS Basin Overall Structural Plan 30. CT/BWS Basin Structural Sections and Details 31. High Lift PS Structural Plan and Sections 32. Low Lift PS Structural Plan and Sections 33. Structural Standard Details 34. Structural Standard Details 35. Plant Hydraulic Profile 36. CT/BWS Basin Mechanical & Electrical Plan 37. Flow Meter Vault Plan and Section 38. Flow Meter Vault Sections and Details 39. High Lift PS Mechanical Plan and Sections 40. Low Lift PS Mechanical Plan and Sections 41. High Lift & Low Lift Building Mechanical Plans 42. Mechanical Standard Details 43. Mechanical Standard Details 44. Yard Piping Overall Plan 45. Yard Piping Partial Plans 46. Yard Piping Details 47. Overall Electrical Site Plan 48. Electrical One-Line Diagram 49. Flow Meter Vault Electrical Plan 50. High Lift Pump Station Electrical Plan and Details 51. Low Lift Pump Station Electrical Plan and Details 52. Control Wiring Diagrams 53. Panel Board Schedules 54. Electrical Standard Details 55. Electrical Standard Details TABLE 1 Final Design Sheet list 27. CT/BWS Basin Structural Foundation Plan 28. CT/BWS Basin Structural Roof Plan 29. CT/BWS Basin Structural Sections and Details 56. CT/BWS Basin and Vault P&ID 57. High Lift PS & Low Lift PS P&ID 58. I&C Standard Details Updates to the preliminary design construction cost estimate will be prepared at the 50% and 90% complete milestones. Schedule 50% Complete Design - October 30,2007 90% Complete Design - December 15, 2007 100% Complete Bid Documents - January 7,2008 Bid and Award - January 15 thru February 28, 2008 Construction - March 1, 2008 through March 1, 2009 Task 4 - Bidding Services and Task 5 - Services During Construction The Task 4 - Bidding Services and Task 5 - Services During Construction will be completed as described in the original contract scope of services, except the level of effort for professional engineering services will increase as needed by task commensurate with the expanded amended scope of work. Compensation CH2M HILLjKeampfer was retained to complete final design, bid phase, and construction related engineering services. The revised cost of engineering services and level effort for this contract amendment are presented by task in Table 1 attached and summarized in Table 2 below. Given the original contract amount of $355,670 and the revised engineering services scope of $534,390, the additional compensation required to complete the amended scope of services is $178,720. The terms and conditions of the contract executed by both parties April 20, 2007, is incorporated herein by reference. TABLE 2. WFP MODIFICATIONS AND DEMOLITION PROJECT, AMENDED. COMPENSATION SUMMARY Task Contract Value Original Contract for Professional Engineering Services Amended Contract for Professional Engineering Services Net Additional Compensation - Project Amendment No.1 $355.670 $534,390 $178,720 g e ... c ~ '0 Iii c-, C n:I '8 E E ... ::> '" (f) a ~ "" ... 0 <> - ", '5 fii 0 ::<: 'I:: - g C to W D: '0 c .2 ~ ~ if ", ~ Ql ~ (I) IX> os: c( Ql .... ::: ex: ~; 0)0- ~~ - - ..... ..... ,... 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