HomeMy WebLinkAboutAmendment to Agreement No 6 - AEOCOM engineering services - Calle Joaquin Siphon and Lift StationAMENDMENT TO AGREEMENT NO.6
THIS AMENDMENT TO AGREEMENT is made and entered in the City of San Luis Obispo on
by and between the CITY OF SAN LUIS OBISPO, a municipal corporation,
hereinafter referred to as ity, and AECOM Technical Services, Inc., hereinafter referred to as Contractor.
WITNESSETH:
WHEREAS, on November 15, 2011 the City entered into an Agreement with Contractor for
Engineering Design Services per Specification No. 91133 and
WHEREAS, the City desires to amend the scope of services to include additional Engineering
Design Services and Contractor has submitted a proposal for this purpose that is acceptable to the City.
NOW THEREFORE, in consideration of their mutual promises, obligations and covenants
hereinafter contained, the parties hereto agree as follows:
The scope of services and related compensation is hereby amended as set forth in Exhibit
A attached hereto for additional engineering design work for the Calle Joaquin Lift Station
Replacement, at cost not to exceed $175,827 per memorandum dated November 8, 2018.
2. All other terms and conditions of the Agreement remain in full force and effect.
IN WITNESS WHEREOF, the parties hereto have caused this instrument to be executed the day
and year fust written above.
ATTEST:
Teresa Purrington, City ClerI
CITY OF SAN LUIS OBISPO
By: AL
eidi Harmon a r
CONTRA T¢R
Ben Horn, AECOM Technical Services, Inc.
AcoM
November 9, 2018
Jennifer Metz
City of San Luis Obispo
879 Morro Street
San Luis Obispo, CA 93401
Dear Jennifer,
AECOM 661 2832323 tel
5001 E Commercenter Drive, Suite 100 661 3950359 fax
Bakersfield, CA 93309
www.aecom corn
Calle Joaquin Lift Station Replacement Scope Amendment No. 6
Background
The City of San Luis Obispo (City) has requested AECOM amend our currently authorized Scope of
Work to develop design details and specifications to remove the existing siphon and restore the creek
channel, confirm and finalize the design documents, develop a recommended sequence of
construction, and revise the efforts for construction phase services commensurate with the level
necessary to construct the design.
SCOPE OF WORK
This Scope Amendment includes the following tasks:
TASK GROUP 1: Project Management and Coordination
Task 1.1: Project Meetings
AECOM will attend three (3) progress and coordination meetings during the final design of the
project. Additional meetings for other tasks are included in their respective task.
Task 1.2: Project Management
AECOM will provide additional project management and coordination with the City's Project Manager.
Task 1.3: CEQA and Permitting Support
AECOM will provide additional CEQA and Permitting coordination with the City and their
subconsultant.
TASK GROUP 2: Siphon Removal and Restoration
Task 2.1: Existing Siphon Removal and Creek Restoration Design
In order to comply with a request from the National Marine Fisheries Service (NMFS), AECOM will
provide plans, specifications, and opinion of probable cost (OPC) to remove the existing siphon from
AZCOM
the channel of San Luis Obispo Creek and restore the channel. The design is based on the following
parameters from the City:
• Removal of an approximately 15-20 foot section of the existing sewer pipeline and concrete
encasement from the center of the channel;
• Installation of a water diversion to isolate the instream work area including dewatering;
• Construction of a roughened channel.
For NMFS review purposes, separate set of bid documents will be prepared for Task 2.1
Subtasks include the following:
Channel Design
o Background Review, Hydrologic Data Collection
o Site Reconnaissance, Sampling and Analysis
o Determine Design Flows, Criteria and Constraints
o Hydraulic Modeling (Existing and Iterative Design)
o Fish Passage Assessment and Design
o Grade Control, Channel Substrate and/or Bank Design
o Material Balance Iterations
Revegetation Design
o Planting plan, details, and schedule
o Irrigation plan, details and schedule
o Planting preparation plan
o Seeding and mulching plan
o Willow pole cuttings installation plan
o Container plant and tree seed installation plan
o Plant establishment plan (1 -Year)
o Long term maintenance and monitoring plan (Year 2-5)
o Propagule collection plan
Deliverables:
60% Submittal consisting of the following (7 hard copies):
o Draft half-size (11" x 17") drawings
o Draft technical specifications
o Draft opinion of probable construction costs (OPC)
90% Submittal consisting of the following (7 hard copies)
o Revised half-size (11"x 17") drawings
o Revised technical specifications
o Revised OPC
Once the design documents are approved by the NMFS, the design will be incorporated into Project's
final design documents as part of Task 3.2.
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AL OM
TASK GROUP 3: Finalize 100% Design Documents for Bid
Task 3.1: Develop Recommended Sequence of Construction
AECOM will conduct two meetings with City staff and the City's construction inspector (Filippin
Engineering) to determine a recommended sequence of construction for the project. The meetings
will allow all parties to evaluate the various permit schedule requirements alongside standard
construction practices and continued sewer service requirements to determine the optimum timing for
bidding, construction, and duration of the project. The conclusions from these meetings will be
summarized in an email and incorporated into the Project specifications as part of Task 3.2.
Deliverables:
• Recommended Sequence of Construction email
Task 3.2: Finalize Design Documents for Bid
AECOM will finalize the 100% Design Documents for bid including the plans, specifications, and
OPC. This task includes the following subtasks:
Incorporate approved siphon removal and creek restoration design documents developed in
Task 2;
Y Revise specifications to include the sequence of construction developed in Task 3.1;
O Update design documents based on final permit requirements from all agencies;
• Update design documents based on final agreement with Motel 6;
• Reduce the size of the Highway 101 crossing casing to 24 -inch diameter and revise the
construction method;
Due to the delays in design, review specifications to identify changes in manufacturer product
lines, design standards, and environmental laws that effect the specifications. Update
specifications as necessary;
Incorporate recommended revisions based on the survey consultant review of the project
survey;
• Incorporate recommended revisions based on the geotechnical engineering consultant
review of the project geotechnical report;
• Conduct a constructability review of the design documents;
0 Final QA/QC of the design documents.
AXOM
Deliverables:
Final Submittal consisting of the following (7 hard copies and electronic copy in PDF format)
o Final half-size (11" x 17") drawings
o Final technical specifications
o Final OPC
Additional Engineering Services
If requested by City, AECOM will provide the following additional services, beyond the services
included in our Scope of Work, on a time and materials basis based on the current rate schedule:
A. Attendance to additional meetings beyond those specifically identified.
B. Planning, analysis or design of additional or alternative facilities, including facilities offsite
from the proposed project site.
C. Services associated with prequalification of contractors other than as specifically defined
herein.
D. Any additional project -related services not specifically included in Scope of Work.
Client Furnished Services
The following services or information will be provided by City or its consultants:
A. Information for inclusion in the cost opinion and/or bid item descriptions on project
components not being prepared by AECOM.
B. Copies of all relevant reports, studies, drawings, correspondence, and other relevant
project information or data. We have assumed that the City will provide all relevant
planning information identifying existing and future design flows for the lift station.
Schedule
The preliminary schedule for this scope of work assumes a notice -to -proceed (NTP) date of
December 21, 2018 and bidding for the project to commence June 28, 2019.
Budget
AECOM's budget for the scope items described above is $175,827, and will not be exceeded unless
additional authorization is requested and granted by the City in writing. AECOM's fee and costs will
be invoiced on a Time and Materials basis.
These services will be provided according to the terms and conditions defined in the Agreement
between the City and AECOM for Design Services for the Calle Joaquin and Laguna Lift Station
Replacement project, dated November 15, 2011. Scope and deliverables for this work will be as
described above.
4
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We anticipate this proposed scope of work meets your expectations. Please indicate your
authorization by signing in the space provided below, and return this request, or contact me if the City
requires revisions to the proposed scope of work.
Sincerely,
o_
Daniel S. Cronquist, PE, PLS
Project Manager
' r
1, 2'
Ben Horn, PE
Managing Engineer
Enclosed:
Scope Amendment Budget
Date:
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