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Home My WebLink AboutAECOM Supp Agmnt #3 FY16 Wet Well Rehab, Cont. No. 907 3.1.2021 AECOM 319-232-6531tel Com 501 Sycamore Street 319-232-0271 fax �L= Suite 222 Waterloo,Iowa 50703 www.aecom.com FY 2016 SATELLITE RAW WASTEWATER WET WELL REHABILITATION WATER POLLUTION CONTROL FACILITY CITY OF WATERLOO, IOWA CONTRACT NO. 907 SUPPLEMENTAL AGREEMENT NO. 3 WHEREAS, a Professional Services Agreement was entered into between the City of Waterloo, Iowa, (Client), and AECOM Technical Services, Inc. (ATS), of Waterloo, Iowa, dated February 1, 2016, for design and bidding services for the FY 2016 Satellite Raw Wastewater Wet Well Rehabilitation Project. WHEREAS, the Client and ATS entered into Supplemental Agreement No. 1 on December 19, 2016, for providing additional engineering design services; and WHEREAS, the Client and ATS entered into Supplemental Agreement No. 2 on June 18, 2019, for providing construction-related services (CRS)for the project; and WHEREAS, the Client and ATS now desire to enter into Supplemental Agreement No. 3 for providing additional construction-related services (CRS)for the project. NOW THEREFORE, it is mutually agreed to amend the original Professional Service Agreement as follows: A. Project Description The project consists of construction-related services for rehabilitation of the existing Satellite Raw Wastewater Wet Well, Sludge Holding Wet Well, Influent Anaerobic Wet Well, Installation of Crossover Structures on domestic and satellite sanitary sewer lines, and miscellaneous piping restorations at the Water Pollution Control Facility(WPCF). Due to the corrosive nature of the wastewater, the wet wells and the majority of the components within it have been severely corroded. The coatings applied on the concrete walls are peeling off and the ductile iron piping shows signs of severe corrosion. Other components within the wet wells, such as the gates and the pump retrieval systems, are also corroded. The project details means for the rehabilitation of the interior of the wet wells. This will include repairing and recoating the concrete surfaces, replacing or coating existing ductile iron piping, installation of new pump removal systems, replacement of existing corroded gates with new gates, and replacement of other items within these wet wells that are found to be corroded and not in good working condition. Also, crossover structures are to be installed to allow for flow diversion between the domestic and satellite sanitary sewer lines. The installation of the crossover structures is currently ongoing. During planning of the crossover structures, there were alternative investigations into the use of a Ferric Chloride feed system to be replaced/refurbished at the anaerobic lagoon site. After investigating the feasibility of this system, it was decided not to pursue rebuilding the entire Ferric Chloride feed system. The use of a smaller temporary system was determined to be more cost effective. The procurement of crossover structure materials involved extensive investigations to verify compatibility of the industrial waste being conveyed through the structures. This extended the delivery times for materials in addition to the construction schedule. The securing of permanent and construction easements at the site with the adjacent landowner also took longer than expected due to extended negotiations. This �L=Com Page 2 supplemental agreement will provide for additional construction-related services required through project completion. B. Scope of Services The Scope of Services will encompass and include detailed work, services, materials, equipment, personnel and supplies necessary to provide additional construction-related services for the project. The Scope of Services is further defined as follows: Task 1 - Submittals. Review shop drawings and other submittals as required of the contractor by the contract documents for conformance with the design concept of the project and compliance with the information given in the contract documents. Task 2 - Horizontal and Vertical Control. Provide horizontal and vertical control for the crossover structure. Task 3 - Project Intentions. Answer design interpretation questions from the Client, contractor, review staff and appropriate agencies. Task 4 - Contractor Payment Applications. Process monthly applications for payment submitted by the contractor and forward to the Client for execution with recommendations for approval and payment. Task 5 - Field Testing Conformance Review Assistance. Witness, where applicable, field testing of the materials furnished under the contract to assist in determining conformance with the contract documents. Task 6 - Site Visits by Design Personnel. Visit the construction site by design personnel at appropriate stages of construction to review the quality of the work and to determine, in general, whether the work conforms to the contract documents. Task 7 - Change Order Preparation and Processing. Assist the Client and contractor in preparing and processing contract change orders. Task 8 - Field Observation. Provide periodic field observation during construction to review the work of the contractor to determine if the work is proceeding in general accordance with the contract documents and that completed work appears to conform to the contract documents. Staffing requirements may be adjusted during the project in relation to the level of construction activity. Task 9 - Conformance Updates to Client as Needed. Report to the Client any work believed to be unsatisfactory, faulty or defective or does not conform to the contract documents, and advise Client of any work that should be corrected or rejected. Task 10 - Evaluate Contractor's Suggestions for Modifications. Consider and evaluate contractor's suggestions for modifications and report them with recommendations to the Client. Task 11 - Maintain Files during Project. Maintain files for correspondence, reports of the job conferences, shop drawings and sample submissions, reproductions of original contract documents including addenda, change orders, field modifications, additional drawings issued subsequent to the execution of the contract, Engineer clarifications and interpretations of the contract documents, progress reports and other project-related documents. �L=Com Page 3 Task 12- Review of Project. Participate in a review of the project with the Client and review staff near project completion and prepare a list of items to be completed or corrected. Task 13 - Field Observation of Completed Project. Participate in a field observation of the completed project with the Client and review staff before a final application for payment is processed for the Contractor. Task 14 - Revised Plans Showing Changes Made Durinq Construction. Provide the Client with a copy of revised drawings of the construction plans for the project based on the construction observation records of the review staff and contractor showing those changes made during construction considered significant. Task 15 - Documentation Close-Out. Assist the Client with the final close-out documentation from the Contractor. Ill. Compensation Compensation for the above services will be on an hourly basis in accordance with Part VI of the original agreement and shall be integrated with the fees in Supplemental Agreement No. 2. The estimated fee is Twenty-Five Thousand Dollars ($25,000.00). 1V. In all other respects, the obligations of the Client and the Consultant shall remain as specified in the Professional Services Agreement dated February 1, 2016. IN WITNESS WHEREOF, the parties hereto have executed this Supplemental Agreement No. 3 as of the dates shown below: AECOM TECHNICAL SERVICES, INC. �LLVBy PDate February 22, 2021 Douglas chindel, P.E. Associate Vice President APPROVED FOR CLIENT: By. �'�� "ter I Date 3/1/2021 0:\Administration\AGREEISUPPLE15A3 Wat Satellite Wet Well CRS.docx