HomeMy WebLinkAboutAECOM - Supplemental Agmnt No. 3 - Dry Run Creek Interceptor - 3/4/19AECOM
AECOM 319-232-6531 tel
501 Sycamore Street 319-232-0271 fax
Suite 222
Waterloo, Iowa 50703
www.aecom.com
CITY OF WATERLOO
DRY RUN CREEK INTERCEPTOR
FLOW CAPACITY INCREASE TO ACCOMMODATE
POTENTIAL DEVELOPMENT
SUPPLEMENTAL AGREEMENT NO. 3
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 August 18, 2014, for design of the Dry Run
Creek Interceptor, and
WHEREAS, the Client and ATS entered into Supplemental Agreement No. 1 on May 16, 2016, for
providing construction -related services for the project and State Revolving Fund application
assistance; and
WHEREAS, the Client and ATS entered into Supplemental Agreement No. 2 on August 20, 2018,
for design and construction -related services for the installation of a stand-by emergency generator
to provide the electrical requirements for the City of Waterloo's Hawkeye Lift Station as part of the
Dry Run Creek Interceptor project; and
WHEREAS, the Client and ATS now desire to enter into Supplemental Agreement No. 3 for
upgrading the design of the Dry Run Creek Interceptor project to accommodate greater wastewater
flows from potential development within the collection area.
NOW THEREFORE, it is mutually agreed to amend the original Professional Service Agreement as
follows:
1. Project Description
The project consists of providing design services for upgrading the design of the Dry Run
Creek Interceptor project to accommodate greater wastewater flows from potential
development within the collection area.
II. Scope of Services
The Scope of Services will encompass and include detailed work, services, materials,
equipment, personnel and supplies necessary to provide design for upgrading the design to
allow for greater flows to the Dry Run Creek Interceptor project. The Scope of Services is
further defined as follows:
Task 1 - Review and Upgrade Pump Station Design. Due to the possibility of high water -
use development along the corridor, the proposed pump station is now anticipated to
receive an ultimate flow of 3.6 million gallons per day (MGD). The original design was for
1.8 MGD. This task will include reviewing and resizing the pumps and pump station as
needed to account for higher flows. Updating all civil and process drawings and
specifications will be included in this task.
Task 2 - Review and Upgrade Force Main and Gravity Sewers. This task will include
reviewing and updating the force main and gravity sewer sizing to accommodate higher
flows and revising plan and profile sheets as needed. Updating specifications for these
changes will be included in this task.
AECOM
Page 2
Task 3 - Structural Design. This task will include reviewing and updating
architectural/structural drawings and specifications for the equipment building (dependent
on sizing change of the building). The required upgrades to the mechanical design will be
included in this task.
Task 4 - Electrical Design. This task will include reviewing and updating the electrical
design. This will include revising electrical and instrumentation and control components
that are required due to the larger pump sizes. Updating the generator sizing will be
completed as part of this task. Electrical and IC drawings and specifications will be updated
as part of this task.
Task 5 - Update SRF (State Revolving Fund) Documents. A Facility Plan Amendment, an
environmental review for any additional areas used (if needed), and a revision of the IUP
(Intended Use Plan) will need to be completed to allow for SRF funding to be used for this
project.
Task 6 - Plans and Specifications. As part of this task, plan sheets and specification
sections will be updated and compiled for the items listed in Tasks 1 through 4.
Task 7 - Update Sanitary Sewer Report. This task includes updating the Dry Run Creek
Sanitary Sewer Report (dated September 2015) to reflect additional wastewater flow
demands from potential development.
III. 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
Nos. 1 and 2. The estimated fee is Eighty -Two Thousand Five Hundred Dollars
($82,500.00).
IV. In all other respects, the obligations of the Client and the Consultant shall remain as
specified in the Professional Services Agreement dated August 18, 2014.
IN WITNESS WHEREOF, the parties hereto have executed this Supplemental Agreement No. 3 as
of the dates shown below:
AECOM TECHNICAL SERVICES, INC.
By
e
Douglas L..chindel, P.E.
Associate Vice President
APPROVED FOR CLIENT:
By:
O:\Administration\AGREE\SUPPLE\SA3 Waterloo Dry Run Creek.docx
Date February 27, 2019
Date