HomeMy WebLinkAboutC2016-298 - 6/2/2016 - NA CITY OF CORPUS CHRISTI
AMENDMENT NO. 8
CONTRACT FOR ENGINEERING DESIGN
The City of Corpus Christi, Texas, a Texas home-rule municipal corporation ("City") and Carollo Engineers, Inc.
("Consultant"), agree to the following amendments to the Contract for Professional Services for New Broadway
Wastewater Treatment Plant(Project No. 7293):
Original Contract December 1, 2006 Administrative Approval $24,915.00
Amendment No. 1 February 12, 2008 Motion No. 2008-033 $7,306,047.00
Amendment No. 2 September 18, 2009 Administrative Approval $34,801.00
Amendment No. 3 November 10, 2009 Motion No. 2009-314 $855,669.00
Amendment No. 4 February 3, 2010 Administrative Approval $45,000.00
Amendment No. 5 August 9, 2011 Administrative Approval $48,750.00
Amendment No. 6 September 28, 2012 Administrative Approval $49,980.00
Amendment No. 7 Administrative Approval $49,980.00
Exhibit "A", Scope of Services shall be amended as set forth in the attached Amendment No.8, Exhibit "A".
Exhibit "A", Fees shall be amended based on the modified scope of services in the attached Amendment No. 8,
Exhibit "A" for a fee not to exceed $12,180, for a total restated fee not to exceed $8,427,322.
All other terms and conditions of the December 1, 2006 Contract for Professional Services between the City and
Consultant, and of any amendments to that contract, which are not specifically addressed herein shall remain in full
force and effect.
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V lerie H. Gra , P.E. /Ue Date Jas Anderson, P.E. Date
Ex utive Director 01 Public W rks Associate Vice President
8911 Capital of Texas Hwy North, Suite 2200
RECOMMENDED Austin, TX 78759
(512) 882-0469 Office
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APPROVED
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Project Number 7293
Office of Managemet and Budget Date Accounting Unit 4249-064
Account 550950
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Fund Name Wastewater 2012B RVBD
2016-298
6/02/16
Carollo Engineers Inc. INDEXED
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Attachment A
AMENDMENT NO. 8-SCOPE OF SERVICES
CITY OF CORPUS CHRISTI
NEW BROADWAY WASTEWATER TREATMENT PLANT
PROJECT NO. 7293
UV SYSTEM DESIGN MODIFICATIONS
1.0 BACKGROUND
The CITY of Corpus Christi (CITY) has retained Carollo Engineers, Inc. (ENGINEER)to provide
professional engineering services to address the performance issues with the UV System of the
New Broadway Wastewater Treatment Plant(NBWWTP). This Amendment No. 8 provides for
Design Engineering Services associated with the installation of new channel baffle plates,
deflector plates, and associated channel improvements to the existing UV System.
2.0 PURPOSE
This Amendment No. 8 establishes the Scope of Work, the Time of Performance, and the
Engineering Services Budget for Design Services to be provided by the ENGINEER for the
CITY. The engineering services will consist of the following:
• Task 200—Quality Management
• Task 300— Design Modifications: UV System Baffle Plate, Deflector Plate and Channel
Fillet Improvements
3.0 PROJECT ELEMENTS
The scope of services presented herein is based on a project that consists of the major
elements summarized below:
1. Work Change Directive Document Preparation:
a. Design a new baffle plate to improve the flow characteristics through each of the
existing channels.
b. Design a deflector plate to improve the flow characteristics through each of the
existing channels.
c. Design the concrete fillet areas downstream of the flume discharge and before the
baffle plate in each of the channels to improve the flow characteristics through each
of the existing channels.
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AMEND. NO. 8
EXHIBIT"A"
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4.0 SCOPE OF SERVICES
TASK 200 QUALITY MANAGEMENT
Task 201 - Internal Quality Management
Perform quality management activities on ENGINEER tasks including on-going discipline
coordination, technical review, document review, quality assurance/quality control activities, and
checking.
TASK 300 DESIGN MODIFICATIONS
Task 301 - UV System Baffle and Deflector Plate Modifications
It is anticipated that at least two sheets of the existing mechanical Drawings must be modified to
detail the construction and installation of the baffle plate and deflector plate for the UV System
channels. Modify existing Drawings, and develop additional drawings or details as necessary to
show construction of the revised baffle plate and deflector plate.
Deliverables:
Final Drawings for the Project Elements associated with Task 301 (MicroStation, and PDF)to
be presented as a Work Change Directive.
Task 302 - UV System Channel Modifications
It is anticipated that at least two sheets of the existing structural Drawings must be modified to
detail the construction of the concrete corner fillets at the discharge of the Parshall Flume and
the sloped fillets from the Parshall Flume to just before the baffle plate. Modify existing
Drawings, and develop additional drawings or details as necessary to show construction of UV
System channel modification details.
Deliverables:
Final Drawings for the Project Elements associated with Task 302 (MicroStation, and PDF)to
be presented as a Work Change Directive.
ASSUMPTIONS AND CITY RESPONSIBILITIES
In addition to specific assumptions presented within Tasks 200 through 300 above and the
following major assumptions apply to the scope of services:
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EXHIBIT"A"
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•
1. Schedule: It is assumed the Work will be completed within one month of Notice to
Proceed.
2. Decision Log: The Engineer will maintain a log of major decisions made throughout the
project. The Decision Log will be reviewed with the CITY for concurrence. Changes to the
agreed-to decisions or retroactive decisions may result in an increase to the schedule
and/or fee.
3. File Management: ProjectWise®will serve as the file management system for all project
documentation. All drawings and specifications will be saved to the ProjectWise®files
created specifically for this project.
4. Site and Project Elements: The scope of services will be limited to those sites and project
elements identified under the Project Elements listed above.
5. Deliverables: Up to four(4) paper copies of all deliverables will be provided to the CITY.
Final drawing sets will be produced at half-size (11"x 17") scale. All deliverables will also
be posted to ProjectWise®.
6. Changes in Laws or Regulations: In the event that changes in Laws or Regulations after
the effective date of the authorization impose taxes, fees, or costs on Engineer's services,
the costs shall be in addition to the Engineer's estimated total fee presented herein.
7. It is assumed that all structures, equipment, piping, valves, and appurtenances required
for the UV System have been properly installed and maintained as per the Contract
Documents, and are in proper condition for installation and operation in order to fully
evaluate the performance of the system.
8. It is assumed that all Shop Drawings and Submittals required for construction of the UV
system have already been approved.
9. Quality Management(Task 200):
a. Internal Quality Management: ENGINEER will designate a quality management
team to perform overall project review, and quality assurance/quality control of
ENGINEER's tasks. Further, each subconsultant team will be responsible for quality
management related to their tasks.
10. Design Modification (Task 300):
a. 100% Deliverables: These deliverables will include the Drawings necessary to
provide direction to the existing Contractor for the modifications to the UV System
as part of a Work Change Directive.
b. Bid-ready Contract Documents for bidding purposes are NOT provided by this
Scope of Work.
c. The existing Specifications and details are still in effect, as are all existing Drawings
not modified under this Scope of Work.
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AMEND. NO. 8
EXHIBIT"A"
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COMPENSATION
Compensation for the above Scope of Services shall be on a lump sum basis with payment
made monthly on the basis of progress achieved. The Engineer shall prepare a schedule of
values for review by the CITY. Upon acceptance, the schedule of values will be used to
establish monthly progress payments versus percent complete.
The projected cost for this amendment has been calculated and is defined in Attachment B. The
total compensation for the above Scope of Services, including allowances and special services,
shall be twelve thousand, one-hundred eighty dollars ($12,180) and shall not be exceeded
without prior written authorization from the CITY.
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AMEND. NO. 8
EXHIBIT"A"
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