HomeMy WebLinkAboutAECOM - Diffuser Wing Dike Improvements Supp Agmnt #1 - 12/10/2018 AECOM 319-232-6531 tel
PECOM
501 Sycamore Street 319-232-0271 fax
Suite 222
Waterloo,Iowa 50703
www.aecom.com
DIFFUSER WING DIKE IMPROVEMENTS
WATER POLLUTION CONTROL FACILITY
CONSTRUCTION-RELATED SERVICES
CITY OF WATERLOO, IOWA
SUPPLEMENTAL AGREEMENT NO. 1
WHEREAS, a Professional Service Agreement was entered into by the City of Waterloo, Iowa,
(Client), 715 Mulberry Street, Waterloo, Iowa, and AECOM Technical Services, Inc. (ATS), 501
Sycamore Street, Suite 222, Waterloo, Iowa, dated April 29, 2016, for design of the Diffuser Wing
Dike, and
WHEREAS, the Client and ATS now desire to enter into Supplemental Agreement No. 1 for
providing construction-related services for the project.
NOW THEREFORE, it is mutually agreed to amend the original Professional Service Agreement as
follows:
A. Project Description
The existing wastewater treatment plant diffuser was constructed over 20 years ago and
has been in continuous operation since that time. When the diffuser was originally
installed, it extended across the entire river. Since that time, the river has eroded past the
downstream end of the diffuser (east side manhole) allowing some flow to bypass around
the diffuser.
The extent of the work includes the installation of a wing dike on the east side of the treated
wastewater diffuser termination manhole in the Cedar River. The project will also include
completing the restorative bank protection work along the east side of the Cedar River
(within the City of Evansdale) to prevent continuing erosion, installation and removal of
construction access road, wetland grass and tree planting, and other associated work
necessary to construct project.
B. Scope of Services
The Scope of Services will encompass and include detailed work, services, materials,
equipment, personnel and supplies necessary to provide construction-related services. The
Scope of Services is further defined as follows:
Task 1 - Assign Project Manager. Assign a project manager who will coordinate project
activities and will be the principal liaison between the Client, City of Evansdale, ATS and
regulatory agencies.
Task 2 - Contract Document Execution. Assist the Client in assembling the contract
documents for execution by the contractor and the Client.
Task 3 - Preconstruction Conference. Conduct a preconstruction conference with
representatives of the contractor, Client, ATS and affected utilities.
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Task 4 - Horizontal and Vertical Control. Provide horizontal and vertical control for the
project including:
• Construction Limits - Identify where needed. (Property staking and surveys are not
included with the scope of this item.)
• Grade Stakes— Provide grade stakes for riverbank protection and wing dike.
Task 5 - 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 6 - Proiect Intentions. Answer design interpretation questions from the Client,
contractor, review staff and appropriate agencies.
Task 7 - 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 8 - 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 9 - 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 10 - Change Order Preparation and Processing. Assist the Client and contractor in
preparing and processing contract change orders.
Task 11 - 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 12 - 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 13 - Evaluate Contractors Suggestions for Modifications. Consider and evaluate
contractor's suggestions for modifications and report them with recommendations to the
Client.
Task 14 - Maintain Files during Proiect. 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.
Task 15 - Review of Proiect. 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.
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Task 16 - 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 17 - Revised Plans Showing Changes Made During 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 18 - Documentation Close-Out. Assist the Client with the final close-out
documentation from the contractor.
111. Compensation
Compensation for the above services will be on an hourly basis in accordance with Part VI
of the original agreement and shall be segregated from the fees in the original agreement.
The estimated fee is Sixty-Two Thousand Four Hundred Dollars ($62,400.00).
IV. In all other respects, the obligations of the Client and the Consultant shall remain as
specified in the Professional Services Agreement dated April 29, 2016.
IN WITNESS WHEREOF, the parties hereto have executed this Supplemental Agreement No. 1 as
of the dates shown below:
AECOM TECHNICAL SERVICES, INC.
2/
By f Date December 13, 2018
Douglas chindel, P.E.
Associate Vice President
APPROVED FOR CLIENT:
By: l_ t��a�csc—c.� Date
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