HomeMy WebLinkAbout04.b. (Handout) Presentation Item 4.b.
(Handout)
August 31,2022
SOLIDS HANDLING FACILITY
IMPROVEMENTS, PHASE 1A
DISTRICT PROJECT 7348
STATUS UPDATE AND
RECOMMENDED ACTIONS
Engineering and Operations
Committee
Edgar J.Lopez,P.E.
i
Capital Projects Division Manager 1 J
Nathan Hodges,P.E.
Senior Engineer
1
Agenda
1 Background and Drivers
2. Design Status
3. Bid Schedule
4. Project Estimate and Budgets
5. Recommendations
1
Background and Drivers
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1 2 3 4 5 6&7
Background o
Staff recommended to
reject all bids for Phase 1.
Total estimated project
cost of $261,373,000.
O O O 0 O
MODIFY MULTIPLE NEW ASH AIR POLLUTION CENTRIFUGE ELECTRICAL SOLIDS CONDITIONING
SLUDGE HEARTH HANDLING CONTROL DEWATERING SYSTEMS BUILARETROIIT
BLENDING/ FURNACES AND LOADOUT (NEW WET SYSTEM
STORAGE (AND SEISMIC) SCRUBBERS)
2
Drivers for Phase 1A (reduced scope)
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Project Drivers
End of Life Assets, Regulatory, Reliability & _--
Sustainability �-
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New air pollution control equipment to meet air
regulations today and in the future
Cake pumps and centrifuge is beyond useful life
Sludge blending tank cover needs replacement
due to significant corrosion
Incineration burners beyond useful life and
replacement parts are extremely rare to get
Improvements needed to keep solids process
reliable for 15+years 1
Seismic improvements for safety and
sustainability of the Solids Conditioning Building
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3
Design Status
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Design Status
Consulting team:
CDM Smith, Inc. (Lead, model, overall construction sequence and
mechanical systems)
GHD, Inc. (Incinerator and air pollution control equipment)
ArcSine Engineering (Electrical and lead controls designer)
HDR Engineering, Inc. (Structural and Architectural)
Degenkolb Engineers (Seismic Designer )
4
Design Status
Preparing bid documents, technical specifications and drawings
Additional design required and recommended by staff, such as:
Modifications to the new wet scrubber system for reliability and
safety; and improved design for future modifications, if required
More focus on improving project for constructability, equipment
delays, realistic sequencing, and contract provisions
Improved electrical, controls, and instrumental plans, and
coordinated with all other disciplines
Important Note: Design Team coordinated scope with Phase 2
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Project for long term solids alternatives.
Bid Schedule
Final design completed in Bid Project
November 2022 » »
Bid Period December— March
2023
lulmit Final
Tentative bid opening April 2023 « SRF Loan Budget
Amount Amendment«
SRF Review then Award (within Finalized Package
120 days from bid opening)
5
Project Estimate and Budgets
Overall design costs (Phase 1 and 1A) - $21,000,000 (SRF Reimbursed)
Construction Contract (Engr. Estimate) - $90,000,000
Seismic Improvements - $20,000,000
Project Contingency - $16,000,000
Construction Management - $22,000,000
Total Estimated Project Costs - $169,000,000
Fiscal Year 2022-23 Budget and CIP - $168,000,000
SRF Authorized Agreement to date - $173,100,000
Recommendations
6
Recommended Board Actions
Staff recommends the following:
Authorize the General Manager to amend four existing professional engineering
services agreements under the Solids Handling Facility Improvements, Phase 1A for
additional design and bidding services with the following consultants at a cost not to
exceed:
a. CDM Smith, Inc. for $550,000, increasing the agreement to $1,400,000;
b. GHD, Inc. for$200,000, increasing the agreement to $700,000;
C. ArcSine Engineering, Inc. for $200,000, increasing the agreement to
$800,000; and
d. HDR Engineering, Inc. for $200,000, increasing the agreement to $350,000.
1
QUESTIONS
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7