1300 Clay Street, Suite 1000 | Oakland, California 94612 | www.terraphase.com August 13, 2024
Hayes Morehouse
Water Pollution Control Plant Manager
City of San Leandro
3000 Davis Street
San Leandro, California 94577
sent via email to: [email protected]
Subject: Proposal for Implementation the Pilot Test of Sludge-Soil-Cement Sludge Stabilization and Preconstruction Design Support at the City of San Leandro Water Pollution Control Plant (WPCP), San Leandro, California Dear Mr. Morehouse:
This proposal describes the scope of work and requested budget for Terraphase Engineering (Terraphase) to provide to the City of San Leandro (City) engineering and project management services to implement the sludge-soil-cement stabilization pilot test at the WPCP former polishing pond and to provide engineering design support during construction procurement for the planned full-scale sludge-soil-cement stabilization and treatment wetland construction projects.
Terraphase has provided engineering, planning, and compliance support for the City for planning, design, and engineering of the City’s WPCP treatment wetland project since 2019, including development of the following previous key deliverables:
• Treatment Wetland Design Options Evaluation
• Treatment Wetland Preliminary Design Report
• Treatment Wetland 30% Design Plans, Specifications, and Engineers’ Cost Estimate (PS&E) • Treatment Wetland 60% Design PS&E
• Treatment Wetland 90% Design PS&E
• Treatment Wetland 100% Design PS&E
• WPCP Soil Stockpile Evaluation
• WPCP Soil Stockpile and Former Polishing Pond Sludge Risk Evaluation • WPCP Section 404 Jurisdictional Delineation (with LSA) • Treatment Wetland New Point-of-Discharge NPDES Permit, SFRWQCB • CEQA compliance evaluations and air quality compliance documents • WPCP Biological Assessment (with LSA)
• Bay Restoration Regulatory Integration Team compliance and permitting • WPCP Former Polishing Pond Sludge Stabilization Pilot Study Work Plan • WPCP Former Polishing Pond Sludge-Soil-Cement Pilot Study (in progress) • BAAQMD permitting documents
Based on recent discussions with the City, we understand that the overall project will be constructed under three separate construction contract packages, summarized as follows:
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1. WPCP Former Polishing Pond Stabilization Pilot Test: This scope of work is included as Task 1 of this proposal and includes execution of the pilot test under contract to Terraphase.
2. WPCP Former Polishing Pond Stabilization and Earthwork (Stabilization Project): This contract will cover soil stabilization, and fill import/placement and associated earthwork in and around the WPCP former polishing ponds in preparation for treatment wetland construction in the former polishing pond area. Construction scope will include:
a. Demolition, clearing and grubbing, of the entire perimeter and surrounding working area of the former polishing pond.
b. Sludge-soil-cement stabilization of the former polishing pond surface. c. Import, management, and placement of earth fill atop the stabilized pond surface using import fill up to proposed final pond surface design elevation.
3. Treatment Wetland Construction and Startup (Treatment Wetland Project): This contract will cover all civil, mechanical, water treatment process, and electrical construction for the treatment wetland system, including:
a. Construction of the secondary effluent tie-in from the WPCP and associated pumping and dechlorination system.
b. Construction of the Membrane Aerated Biofilm Reactor (MABR) nitrification system. c. Construction of conveyance and distribution piping and appurtenances to convey water from the nitrification system to the treatment wetland and distribute water throughout the treatment wetland area.
d. Construction of the treatment wetland in the stabilized and filled former polishing pond, including grading of the pond side slopes, installation of subgrade liner, installation of modular treatment bioreactor elements, irrigation piping, topsoil, and erosion control equipment. e. Planting of the treatment wetland including the surrounding side slopes. f. Construction of modifications to the existing outfall vault and pipe system.
The City will serve as Owner of the project and hold all construction contracts, with Terraphase implementing the pilot test under Task 1 of this proposal, providing engineering design support during procurement of the Stabilization Project under Task 2 of this proposal, and providing engineering design support during procurement of the Treatment Wetland Project under Task 3 of this proposal. Terraphase will provide programmatic project management and coordination for this scope of work under Task 4 of this proposal.
Task 1: Sludge-Soil-Cement Stabilization Pilot Test
Terraphase has continued to work with the City to develop and plan a pilot test for sludge-soil-cement stabilization of the former polishing pond at the City WPCP. The objective of stabilizing the former polishing pond is to strengthen the surface of the pond to a minimum unconfined compressive strength of at least 1,000 pounds per square foot (psf), within an operationally acceptable curing time, to support fill placement and construction of the planned treatment wetland.
Terraphase previously prepared and submitted a Pilot Test Work Plan (Work Plan) and developed and issued a Request for Proposal (RFP) for implementation of the pilot test. This proposal describes the scope of work and August 13, 2024
Proposal for Implementation the Pilot Test of Sludge-Soil-Cement Sludge Stabilization and Preconstruction Design Support at the City WPCP, San Leandro, California
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requested budget for implementation of the pilot test, with the selected stabilization contractor under contract to and under the oversight of Terraphase.
Summary of Pilot Test RFP Process and Subcontractor Selection Terraphase prepared an RFP based on the Work Plan, which was reviewed by the City, and issued the RFP to two prequalified stabilization contractors with the required experience, equipment, and local capacity. The RFP was issued on June 10, after which the City and Terraphase met with both potential bidders for a preproposal meeting at the WPCP to walk the site, discuss the scope and gather questions. Three addenda to the RFP were issued on June 17, June 21, and June 28. The RFP and addenda are included as Attachment A.
Proposals were due on July 15, and Terraphase received one proposal, from Odin Environmental, Inc. (Odin).
The Odin proposal was reviewed by the City and Terraphase and was deemed responsive to the RFP.
Terraphase met with Odin on July 24 to discuss Terraphase and City questions and provide additional scope clarification. Odin submitted an addendum to their proposal on July 25. The final Odin proposal is included as Attachment B. Terraphase reviewed the revised proposal and recommended awarding the work to Odin; Odin was notified that they were selected to perform the work in accordance with their final proposal on July 29, 2024.
Task 1 Scope of Work
The proposed scope of work to implement the pilot test is broken into the following tasks:
Task 1.1: Premobilization
Immediately upon completion of the City-Terraphase contract, Terraphase will complete subcontract execution with Odin and issue a formal Notice to Proceed to Odin. Terraphase and Odin will complete premobilization activities, including:
• Revision of the Terraphase Health and Safety Plan for the site to cover pilot test implementation. • Preparation for and attendance of a 1-hour project kickoff meeting to be attended by the City, Terraphase, and Odin. Terraphase will prepare the meeting agenda, lead the meeting, and issue meeting minutes. The meeting will be held over teleconference. o Terraphase attendees will include Lucas Paz, Shakeel Jogia, and Terraphase’s project engineer.
o Odin attendees will include their operations manager, project superintendent, and project engineer.
• Terraphase review of Odin technical submittals as described in the Work Plan and RFP and follow up coordination with Odin. The following submittals will be submitted by Odin and reviewed by Terraphase (see Attachment 1 for the description of each submittal):
o Pilot Test Implementation Work Plan
o Pilot Test Quality Control Plan
o Contractor’s Proposed Geotechnical Testing Laboratory o Materials submittals
o Implementation Schedule
Terraphase will issue Approval to Mobilize upon acceptance of all preconstruction submittals.
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Proposal for Implementation the Pilot Test of Sludge-Soil-Cement Sludge Stabilization and Preconstruction Design Support at the City WPCP, San Leandro, California
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Task 1.2: Pilot Test Implementation and Oversight
Odin will implement the Pilot Test under Terraphase oversight and in accordance with the Terraphase-Odin contract and approved submittals. This task includes the value of the Odin subcontract. In their proposal, Odin estimates field implementation of the pilot test to require one work week on site (see Attachment 2 for Odin’s proposal schedule) with 10-hour workdays.
Terraphase will provide full time operational, safety, and quality assurance oversight during field implementation. A field engineer will be present during all field operations, and the proposed budget includes funding for full-time field engineer oversight for up to 6 workdays.
Shakeel Jogia will also be on-site during the first day of mixing operations, and both Shakeel Jogia and Lucas Paz will perform 2 total additional partial-day site visits during implementation. Shakeel Jogia will also provide office-based technical support, response to any subcontractor Requests for Interpretation or technical requests, and logistical coordination throughout field implementation.
During field implementation, Terraphase will prepare and submit a daily report to the City that documents pilot test implementation progress, quality control activities performed and data, technical issues, safety observations, and includes a schedule lookahead through completion of field activities. The daily report will include representative photos of the day’s operations.
Task 1.3: Post-Test In-Situ Sampling
After implementation, a Terraphase field engineer and Odin personnel will mobilize to the site at 3 days, 7 days, and 14 days after demobilization to collect samples of stabilized soil-sludge mixture from each test cell for unconfined compressive strength analysis.
Task 1.4: Closeout and Completion Reporting
After demobilization, receipt of Odin closeout reporting, and receipt of post-test sample analytical results, Terraphase will close out the Odin subcontract and prepare a closeout report that summarizes the pilot test operation, production rate data, as-built site conditions, quality control activities and conclusions, pilot cell unconfined compressive strength data and conclusions, safety and logistical lessons learned, and technical recommendations for full scale implementation. A draft closeout report will be submitted for City review and finalized per City review comments.
Task 1.5: Pilot Test Contingency
Terraphase has developed a contingency task to respond to additional unforeseen scope of work that requires additional Terraphase labor level of effort. Terraphase will only access this budget upon approval from the City. Please note that this task does not include additional contingency funding for the Odin subcontract. Any required additional funding for Odin will only be based on an approved change order request to the Odin subcontract.
Task 2: Stabilization Project Preconstruction Design Support Terraphase expects the Stabilization Project will be constructed first; after which the stabilized surface will be allowed to undergo settlement before mobilization of the Treatment Wetland Project August 13, 2024
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Task 2 Scope of Work
Task 2.1: Development of Issued for Bid (IFB) Plans, Specifications, and Cost Estimate (PS&E) The existing design documents for the project do not currently include bid-ready PS&E for the Stabilization Project. Terraphase will prepare the following IFB PS&E documents for use in the Stabilization Project bid package and to review bidder proposals:
• Scope Delineation: Terraphase will work with the City to confirm the breakdown of specific construction tasks to be completed in the Stabilization Project contract vs. the subsequent Treatment Wetland Project contract based on the overall scope organization described in this proposal.
Construction task delineation will be based on the type of work, necessity of specialized skillset/methods/equipment, when the task needs to be completed within the overall project sequence of work, and physical location of the task. Scope delineation will be documented in a brief technical memorandum and will be approved by the City before proceeding with IFB PS&E development.
• IFB Design Plans: Terraphase will compile and adapt existing 100% design drawings and develop up to five new design drawings that depict pond stabilization work areas, soil stockpile locations, staging/support areas, pond clear/grub/demolition areas, design stabilization and post-stabilization clean fill elevations, stabilization/fill sections and details. Adaptation of existing 100% drawings will include minor revisions to these drawings only as needed to clearly depict/delineate the scope of work of the Stabilization Project. Draft IFB design plans will be submitted to the City for review and comment, and this scope of work includes one round of final revisions to incorporate City review. • IFB Specifications: Terraphase will compile and adapt existing 100% project specifications and prepare a new Soil Stabilization specification section. Revision of existing 100% project specifications are assumed to be limited to Division 00, 01, and 02 and are primarily meant to update project and contract information. Development of the new Soil Stabilization specification section will be informed by technical and logistical findings from the earlier soil stabilization pilot test. Draft IFB specifications will be submitted to the City for review and comment, and this scope of work includes one round of final revisions to incorporate City review. The compiled IFB specifications set will be submitted to the City for formatting and incorporation into City format by others. • IFB Engineers Cost Estimate: Terraphase will develop an Engineer’s Cost Estimate for the Stabilization Project scope of work as described and delineated in the Stabilization Project IFB Design Plans and Specifications. The estimate will utilize cost and quantity takeoff data from the existing 100% Design Cost Estimate to the extent possible. This task does not include substantial revision of the engineering design being estimated, including substantial revision of quantity takeoffs, except for development of new quantity takeoffs associated with stabilization and overlying fill construction tasks. Unit cost data will be escalated as needed to reflect 2025 economic factors. The draft IFB estimate will be submitted to the City for review and comment, and this scope of work includes one round of final revisions to incorporate City review.
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Task 2.2: Design Support during RFP1 Development
Terraphase will provide engineering design support during preparation of the RFP for construction of the Soil Stabilization project. The RFP1 will be prepared by others, with Terraphase providing engineering support as requested by the City. This task includes:
• Respond to technical requests during RFP1 preparation by others. • Complete one round of review of the draft RFP1 from an engineering/design perspective prior to City issuance.
Task 2.3: Bid Period Design Support
Terraphase will provide engineering design support during the construction bid period, including:
• Pre-bid conference: The pre-bid conference will be planned, scheduled, and led by the City or others, with Terraphase project leads, including the project manager and design lead, to provide technical support at the City’s direction. The conference agenda and all other materials will be prepared by others. Post-conference summary and actions will be provided by others. • Bidder question response and RFP1 addenda: Terraphase project leads will review bidder questions as they are submitted to the City and support the City in development of up to three RFP1 addenda.
Addenda will consist of written/narrative question responses, recommended revisions to technical content in the RFP, or revision markups to IFB plans and specifications. • Proposal review and evaluation: Terraphase will review all proposals received by the City and attend one teleconference to discuss any engineering/design feedback arising from proposal review.
All communication with bidders during the bid period will be led by the City or others.
Task 3: Treatment Wetland Project Preconstruction Design Support The Treatment Wetland Project will mobilize after an assumed 6-month stabilized surface settlement period after completion of the Stabilization Project.
Task 3 Scope of Work
Task 3.1: Development of IFB PS&E
Terraphase will complete minor updates to the existing 100% design documents for use in the Treatment Wetland Project bid package:
• IFB Design Plans: Terraphase will complete minor revisions to the 100% design drawings as needed to incorporate into the Treatment Wetland Project RFP1. Terraphase expects design plan revisions to be limited to hatching out work completed under the earlier Stabilization Project and updating project title blocks for IFB version control. This task does not include substantial revision of the actual engineering design elements depicted in the existing 100% plans. The compiled IFB plan set will be submitted to the City for incorporation into the RFP1.
1 Or other City-designated construction bid/procurement document (e.g. Request for Bid).
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• IFB Specifications: Terraphase will complete minor revisions to the 100% project specifications as needed to incorporate the specifications into the Treatment Wetland Project RFP1. Terraphase expects specification content revisions to be limited to removing content associated with work completed under the earlier Stabilization Project. This task does not include substantial revision of the actual engineering elements depicted in the existing 100% specifications. The compiled IFB specifications set will be submitted to the City for formatting and incorporation into City format by others.
• IFB Engineers Cost Estimate: Terraphase will update the 100% design cost estimate for the Treatment Wetland Project. The estimate will delineate cost items that are to be built under the Treatment Wetland Project contract, but otherwise does not include substantial revision of the engineering design being estimated. Unit cost data will be escalated as needed to reflect 2025 costs. The draft IFB estimate will be submitted to the City for review and comment, and this task includes one round of final revisions to incorporate City review.
Task 3.2: Design Support during RFP1 Development
Terraphase will provide engineering design support during preparation of the RFP1 for construction of the Treatment Wetland project. The RFP1 will be prepared by others, with Terraphase providing engineering support as requested by the City. This task includes:
• Respond to technical requests during RFP1 preparation by others. • Complete one round of review of the draft RFP1 from an engineering/design perspective prior to City issuance.
Task 3.3: Bid Period Design Support
Terraphase will provide engineering design support during the construction bid period, including:
• Pre-bid conference: The pre-bid conference will be planned, scheduled, and led by the City or others, with Terraphase project leads, including the project manager and design lead, to provide technical support at the City’s direction. The conference agenda and all other materials will be prepared by others. Post-conference summary and actions will be provided by others. • Bidder question response and RFP1 addenda: Terraphase project leads will review bidder questions as they are submitted to the City and support the City in development of up to six RFP1 addenda.
Addenda will consist of written/narrative question responses, recommended revisions to technical content in the RFP1, or revision markups to IFB plans and specifications. • Proposal review and evaluation: Terraphase will review all proposals received by the City and attend one teleconference to discuss any engineering/design feedback arising from proposal review.
All communication with bidders during the bid period will be led by the City or others.
Task 4: Project Management and Coordination
Terraphase will provide project and financial management of the proposed scope of work, including:
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Proposal for Implementation the Pilot Test of Sludge-Soil-Cement Sludge Stabilization and Preconstruction Design Support at the City WPCP, San Leandro, California
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• During execution of Task 1, Terraphase will provide weekly updates to the City throughout the premobilization, field implementation, and post-test sampling phases of the project. After submittal of the draft closeout report, Terraphase and the City will meet to discuss report comments and lessons learned from the pilot test to be incorporated into the final pilot test closeout report and planning and development of the full-scale stabilization project. • Attendance of two 1-hour construction procurement kickoff meetings with the City, one for each contract package (Tasks 2 and 3). The kickoff meeting will planned and scheduled by others, with Terraphase responsible for preparing materials limited to Terraphase’s design support role. • Coordination and communication of project status during active Terraphase involvement during Tasks 2 and 3, including internal technical coordination and weekly status updates with the City. This update will include update of a project status and issues table and weekly teleconference status meeting with the City, Terraphase project manager (Lucas Paz, PhD), and Terraphase design support lead (Shakeel Jogia, PE, PMP, CCM).
• Low-level project status coordination with the City during the inactive period between completion of Task 2 and initiation of Task 3 to account for stabilized surface settlement after completion of the Soil Stabilization Project and before installation of the treatment wetland. This task assumes brief monthly updates with the City for an up to 6-month inactive period. • Project financial management and invoicing.
Schedule
Terraphase has submitted this proposal with the intension of meeting the submittal schedule for the City’s September 2024 Council meeting. Terraphase is prepared to initiate the proposed scope of work immediately upon receipt of the City’s authorization to proceed.
Task 1 Schedule
Terraphase expects to begin the premobilization phase of the project in late September 2024, complete the pilot test in October 2024, and submit the closeout report in December 2024. The project schedule will be updated after the following milestones:
1. Completion of City-Terraphase contracting.
2. Approval of Odin’s project schedule submittal.
3. After receiving analytical results from post-test sampling.
Tasks 2 & 3 Schedule
Terraphase anticipates initiating Task 2 in early 2025, after completion of the Sludge-Soil-Cement pilot test, to allow for implementation in the second quarter of 2025.
Treatment Wetland construction will initiate after completion of the Soil Stabilization Project and after sufficient time to allow the stabilized surface to settle before construction of the treatment wetland components in the pond area. Terraphase currently assumes a 6-month settlement period but will work with the City to confirm the duration of the post-stabilization settlement period and schedule initiation of Task 2; likely in the fourth quarter of 2024.
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Budget
Terraphase will perform the services described herein on a time-and-materials utilizing Terraphase’s 2024 Schedule of Charges with a 10% discount and otherwise in accordance with the previously agreed upon Terms and Conditions of the existing contract between Terraphase and the City. The total requested budget for the proposed scope of work is $266,624.
A breakdown of this effort is included in Table 1 (attached). Detailed sub-task level breakdowns for Tasks 1 through 3 are included in Tables 2 through 4, respectively (attached). Terraphase will not exceed this budget without prior authorization from the City.
Closing
We appreciate the opportunity to support the City on this important project. If you have any questions regarding this proposal or would like to discuss any adjustments to our approach, please contact Shakeel Jogia at 510-388-0692 / [email protected] or Dr. Lucas Paz at 510-697-1238 / [email protected].
Sincerely,
For Terraphase Engineering Inc.
Shakeel Jogia, PE, PMP, CCM Lucas W. Paz, PhD, CPESC, QSD, QISP ToR Principal Engineer Principal Hydrologist
Attachments:
Table 1: Total Project Cost Breakdown
Table 2: Task 1 Cost Breakdown: Pilot Test Implementation Table 3: Task 2 Cost Breakdown: Stabilization Project Design Support Table 4: Task 3 Cost Breakdown: TW Project Design Support Attachment A: RFP and Addenda
Attachment B: Odin Proposal and Addendum
References
Terraphase Engineering, Sludge-Soil-Cement Stabilization Work Plan, Proposed Treatment Wetland, Water Pollution Control Plant, San Leandro California; 5/21/2024
Table 1 - Total Project Cost Breakdown
Proposal for Sludge-Soil-Cement Pilot Test Implementation and Engineering Support During Construction Procurement Water Pollution Control Plant, San Leandro, CA Qty Cost Qty Cost Qty Cost Qty Cost Qty Cost
Senior Principal Hour $ 10% 272.70 303.00 $ 6 1,636$ 4 $ 1,091 0 $ - $ 10 - $ 2,727 Principal Hour $ 10% 257.40 286.00 $ 106 27,284$ 109 28,057 $ 78 $ 20,077 60 $ 15,444 353 $ 90,862 Senior Associate Hour $ 10% 239.40 266.00 $ 0 -$ 0 $ 0 - $ - $ 0 - $ - Associate Hour $ 10% 225.00 250.00 $ 8 $ 1,800 12 $ 2,700 55 $ 12,375 10 $ 2,250 85 $ 19,125 Senior Project Hour $ 10% 211.50 235.00 $ 117 24,746$ 54 $ 11,421 12 $ 2,538 10 $ 193 2,115 $ 40,820 Project Hour $ 10% 197.10 219.00 $ 0 -$ 0 $ 0 - $ - $ 0 - $ - Senior Staff 2 Hour $ 10% 181.80 202.00 $ 0 -$ 0 $ 0 - $ - $ 0 - $ - Senior Staff 1 Hour $ 10% 164.70 183.00 $ 0 -$ 0 $ 0 - $ - $ 0 - $ - Staff 2 Hour $ 10% 147.60 164.00 $ 0 -$ 0 $ 0 - $ - $ 0 - $ - Staff 1 Hour $ 10% 129.60 144.00 $ 0 -$ 0 $ 0 - $ - $ 0 - $ - Senior Technician Hour $ 10% 134.10 149.00 $ 0 -$ 0 $ 0 - $ - $ 0 - $ - Technician 3 Hour $ 10% 116.10 129.00 $ 0 -$ 0 $ 0 - $ - $ 0 - $ - Technician 2 Hour $ 10% 109.00 $ 98.10 0 -$ 0 $ 0 - $ - $ - 0 $ - Technician 1 Hour $ 10% 91.00 $ 81.90 0 -$ 0 $ 0 - $ - $ 0 - $ - Senior Editor/ Senior Project Coordinator Hour $ 10% 142.20 158.00 $ 0 -$ 0 $ 0 - $ - $ 0 - $ - Editor 2/Project Coordinator 2/Accountant 2 Hour $ 10% 126.00 140.00 $ 0 -$ 0 $ 0 - $ - $ 0 - $ - Editor 1/Project Coordinator 1/Accountant 1 Hour $ 10% 105.30 117.00 $ 0 -$ 0 $ 0 - $ - $ 0 - $ - Administrator/Project Assistant/Billing Specialist Hour $ 10% 98.00 $ 88.20 0 -$ 0 $ 0 - $ 12 - $ 1,058 12 $ 1,058Total Terraphase Labor $ 55,466 $ 43,268 $ 34,990 $ 20,867 $ 154,592 Odin Environmental (Pilot Test Contractor) T&M NTE $ 1.00 $ 94500 94,500 1.00 $ $ - $ - $ 94500 - $ 94,500 RSI (Structural Engineering) T&M NTE $ 1.00 $ 1.00 -$ $ 2400 - $ 2,400 $ 2400 - $ 2,400 PSI (Electrical Engineering) T&M NTE $ 1.00 $ 1.00 -$ $ 2400 - $ 2,400 $ 2400 - $ 2,400 Total Subcontractor Costs $ 94,500 $ - $ 4,800 $ - $ 99,300 Total Other Direct Costs $ - $ - $ - $ - $ -
Direct Cost Handling 10% 10.0% $ 9,450 $ - $ 480 $ - $ 9,930 Total Direct Costs $ 103,950 $ - $ 5,280 $ - $ 109,230
Truck/Vehicle (day) Day $ 196.00 $ 196.00 10 1,960 $ $ - $ - $ 10 - $ 1,960 IPad and Electronic Field Data (day) Day $ 38.00 $ 10 38.00 380$ $ - $ - $ 10 - $ 380 Field Health and Safety and Decon Supplies (daily fee) Day $ 32.00 $ 32.00 9 288$ $ - $ - $ 9 - $ 288 Total Terraphase Equipment/Supplies (ERS) $ 2,628 $ - $ - $ - $ 2,628 Mileage mile $ 0.670 $ 140 93.80$ 0.670 60 $ 40.20 60 $ 40.20 $ 260 - $ 174.20 Total Travel Costs $ 93.80 $ 40.20 $ 40.20 $ - $ 174.20 Total Estimated Project Unit Costs $ 43,309 162,138 $ 40,310$ 20,867$ $ 266,624 Other Direct Costs
Terraphase Equipment/Supplies (ERS)
Travel Costs
Total
Labor
Direct Costs
Subcontractor
Category Units
2024
Standard
Rate
Discount Rate
Task 1: Sludge‐Soil‐
Cement Stabilization
Pilot Test
Task 2: Soil
Stabilization
Preconstruction Design
Support
Task 3: Treatment
Wetland
Preconstruction Design
Support
Task 4: PM &
Coordination
Terraphase Engineering Inc. Page 1 of 4
Table 2 - Task 1 Cost Breakdown: Pilot Test Implementation Proposal for Sludge-Soil-Cement Pilot Test Implementation and Engineering Support During Construction Procurement Water Pollution Control Plant, San Leandro, CA Qty Cost Qty Cost Qty Cost Qty Cost Qty Cost Qty Cost
Senior Principal Hour $ 10% 272.70 303.00 $ 2 $ 2 545 $ 545 $ 2 - $ 545 $ 6 - $ 1,636Principal Hour $ 10% 257.40 286.00 $ 22 $ 5,663 40 $ 10,296 4 $ 1,030 32 $ 8,237 8 $ 106 2,059 $ 27,284 Senior Associate Hour $ 10% 239.40 266.00 $ $ - $ - $ - $ - $ 0 - $ - Associate Hour $ 10% 225.00 250.00 $ 8 $ 1,800 $ - $ - $ - $ 8 - $ 1,800 Senior Project Hour $ 10% 211.50 235.00 $ 9 $ 1,904 76 $ 16,074 12 $ 2,538 8 $ 1,692 12 $ 117 2,538 $ 24,746 Project Hour $ 10% 197.10 219.00 $ $ - $ - $ - $ - $ 0 - $ - Senior Staff 2 Hour $ 10% 181.80 202.00 $ $ - $ - $ - $ - $ 0 - $ - Senior Staff 1 Hour $ 10% 164.70 183.00 $ $ - $ - $ - $ - $ 0 - $ - Staff 2 Hour $ 10% 147.60 164.00 $ $ - $ - $ - $ - $ 0 - $ - Staff 1 Hour $ 10% 129.60 144.00 $ $ - $ - $ - $ - $ 0 - $ - Senior Technician Hour $ 10% 134.10 149.00 $ $ - $ - $ - $ - $ - 0 $ - Technician 3 Hour $ 10% 116.10 129.00 $ $ - $ - $ - $ - $ 0 - $ - Technician 2 Hour $ 10% 109.00 $ 98.10 $ - $ - $ - $ - $ 0 - $ -Technician 1 Hour $ 10% 91.00 $ 81.90 $ - $ - $ - $ - $ 0 - $ - Senior Editor/ Senior Project Coordinator Hour $ 10% 142.20 158.00 $ $ - $ - $ - $ - $ 0 - $ - Editor 2/Project Coordinator 2/Accountant 2 Hour $ 10% 126.00 140.00 $ $ - $ - $ - $ - $ 0 - $ -Editor 1/Project Coordinator 1/Accountant 1 Hour $ 10% 105.30 117.00 $ $ - $ - $ - $ - $ 0 - $ -Administrator/Project Assistant/Billing Specialist Hour $ 10% 98.00 $ 88.20 $ - $ - $ - $ - $ 0 - $ -Total Terraphase Labor $ 9,912 26,915$ 3,568$ 10,474$ 4,597$ $ 55,466 Odin Environmental (Pilot Test Contractor) T&M NTE $ 1.00 $ 1.00 $ 94500 94,500 - $ $ - $ - $ 94500 - $ 94,500 Total Subcontractor Costs $ - 94,500$ $ - -$ $ - $ 94,500Total Other Direct Costs $ - -$ -$ $ - -$ $ - Direct Cost Handling 10% 10.0% $ - $ 9,450 $ - $ - $ - $ 9,450 Total Direct Costs $ - 103,950$ $ - -$ $ - $ 103,950
Truck/Vehicle (day) Day $ 196.00 $ 196.00 $ 6 - $ 1,176 3 $ 588 $ 1 - $ 10 196 $ 1,960 IPad and Electronic Field Data (day) Day $ 38.00 $ 38.00 $ 6 - $ 3 228 $ 114 $ 1 - $ 10 38 $ 380 Field Health and Safety and Decon Supplies (daily fee) Day $ 32.00 $ 32.00 $ 6 - $ 3 192 $ 96 $ - $ 9 - $ 288 Total Terraphase Equipment/Supplies (ERS) $ - $ 1,596 $ 798 $ 1 - $ 234 $ 2,628 Mileage mile $ 0.670 $ 0.670 0 $ 80 - $ 53.60 60 $ 40.20 -$ $ 140 - $ 93.80 Total Travel Costs $ - 53.60$ $ 40.20 -$ $ - $ 93.80
Total Estimated Project Unit Costs $ 132,515$ 9,912 4,406$ 10,474$ 4,831$ $ 162,138 Travel Costs
Total
Labor
Direct Costs
Subcontractor
Other Direct Costs
Terraphase Equipment/Supplies (ERS)
Task 1.3: Post Test In‐
Situ Sampling
Task 1.4: Closeout and
Reporting
Task 1.5: Pilot Test
Category Units Contingency
2024
Standard
Rate
Discount Rate
Task 1.1:
Premobilization
Task 1.2:
Implementation and
Oversight
Terraphase Engineering Inc. Page 2 of 4
Table 3 - Task 2 Cost Breakdown: Stabilization Project Design Support Proposal for Sludge-Soil-Cement Pilot Test Implementation and Engineering Support During Construction Procurement Water Pollution Control Plant, San Leandro, CA Qty Cost Qty Cost Qty Cost Qty Cost
Senior Principal Hour $ 303.00 10% 272.70 $ 4 1,091$ -$ -$ 4 $ 1,091Principal Hour $ 286.00 10% 257.40 $ 58 $ 14,929 20 $ 5,148 31 $ 109 7,979 $ 28,057 Senior Associate Hour $ 266.00 10% 239.40 $ -$ -$ -$ 0 $ - Associate Hour $ 250.00 10% 225.00 $ 12 2,700$ -$ 0 -$ 12 $ 2,700 Senior Project Hour $ 235.00 10% 211.50 $ 50 10,575$ -$ 4 846$ 54 $ 11,421Project Hour $ 219.00 10% 197.10 $ -$ -$ -$ 0 $ - Senior Staff 2 Hour $ 202.00 10% 181.80 $ -$ -$ -$ 0 $ - Senior Staff 1 Hour $ 183.00 10% 164.70 $ -$ -$ -$ 0 $ - Staff 2 Hour $ 164.00 10% 147.60 $ -$ -$ -$ 0 $ -
Staff 1 Hour $ 144.00 10% 129.60 $ -$ -$ -$ 0 $ -
Senior Technician Hour $ 149.00 10% 134.10 $ -$ -$ -$ 0 $ - Technician 3 Hour $ 129.00 10% 116.10 $ -$ -$ -$ 0 $ -
Technician 2 Hour $ 109.00 10% $ 98.10 -$ -$ -$ 0 $ -
Technician 1 Hour $ 10% 91.00 $ 81.90 -$ -$ -$ 0 $ -
Senior Editor/ Senior Project Coordinator Hour $ 158.00 10% 142.20 $ -$ -$ $ 0 - $ - Editor 2/Project Coordinator 2/Accountant 2 Hour $ 140.00 10% 126.00 $ -$ -$ -$ 0 $ - Editor 1/Project Coordinator 1/Accountant 1 Hour $ 117.00 10% 105.30 $ -$ -$ -$ 0 $ - Administrator/Project Assistant/Billing Specialist Hour $ 10% 98.00 $ 88.20 -$ -$ -$ 0 $ - Total Terraphase Labor $ 29,295 5,148$ 8,825$ $ 43,268
RSI (Structural Engineering) T&M NTE $ 1.00 $ 1.00 -$ -$ -$ 0 $ - PSI (Electrical Engineering) T&M NTE $ 1.00 $ 1.00 -$ -$ -$ 0 $ -Total Subcontractor Costs $ - -$ -$ $ - Total Other Direct Costs $ - -$ -$ $ -
Direct Cost Handling 10% 10.0% $ - -$ -$ $ -
Total Direct Costs $ - -$ -$ $ -
Truck/Vehicle (day) Day $ 196.00 $ 196.00 -$ -$ -$ 0 $ - IPad and Electronic Field Data (day) Day $ 38.00 $ 38.00 -$ -$ -$ 0 $ - Field Health and Safety and Decon Supplies (daily
fee) Day $ 32.00 $ 32.00 -$ -$ -$ 0 $ -
Total Terraphase Equipment/Supplies (ERS) $ - -$ -$ $ - Mileage mile $ 0.670 $ 0.670 -$ -$ 60 40.20$ 60 $ 40.20 Total Travel Costs $ - -$ 40.20$ $ 40.20
Total Estimated Project Unit Costs $ 5,148$ 29,295 8,866$ $ 43,309 Travel Costs
Task 2 Total
Labor
Direct Costs
Subcontractor
Other Direct Costs
Terraphase Equipment/Supplies (ERS)
Task 2.3: Bid Period
Category Units Design Support
2024
Standard
Rate
Discount Rate
Task 2.1: Development
of IFB PS&E
Task 2.2: RFP Design
Support
Terraphase Engineering Inc. Page 3 of 4
Table 4 - Task 3 Cost Breakdown: TW Project Design Support Proposal for Sludge-Soil-Cement Pilot Test Implementation and Engineering Support During Construction Procurement Water Pollution Control Plant, San Leandro, CA Qty Cost Qty Cost Qty Cost Qty Cost
Senior Principal Hour $ 303.00 10% 272.70 $ -$ -$ -$ 0 $ - Principal Hour $ 286.00 10% 257.40 $ 12 3,089$ 20 5,148$ 46 $ 11,840 78 $ 20,077 Senior Associate Hour $ 266.00 10% 239.40 $ -$ -$ -$ 0 $ - Associate Hour $ 250.00 10% 225.00 $ 14 3,150$ 10 2,250$ 31 $ 55 6,975 $ 12,375 Senior Project Hour $ 235.00 10% 211.50 $ 12 2,538$ -$ -$ 12 $ 2,538 Project Hour $ 219.00 10% 197.10 $ -$ -$ -$ 0 $ -
Senior Staff 2 Hour $ 202.00 10% 181.80 $ -$ -$ -$ 0 $ - Senior Staff 1 Hour $ 183.00 10% 164.70 $ -$ -$ -$ 0 $ - Staff 2 Hour $ 164.00 10% 147.60 $ -$ -$ -$ 0 $ -
Staff 1 Hour $ 144.00 10% 129.60 $ -$ -$ -$ 0 $ -
Senior Technician Hour $ 149.00 10% 134.10 $ -$ -$ -$ 0 $ - Technician 3 Hour $ 129.00 10% 116.10 $ -$ -$ -$ 0 $ -
Technician 2 Hour $ 109.00 10% $ 98.10 -$ -$ -$ 0 $ -
Technician 1 Hour $ 10% 91.00 $ 81.90 -$ -$ -$ 0 $ -
Senior Editor/ Senior Project Coordinator Hour $ 158.00 10% 142.20 $ -$ -$ $ 0 - $ - Editor 2/Project Coordinator 2/Accountant 2 Hour $ 140.00 10% 126.00 $ -$ -$ -$ 0 $ - Editor 1/Project Coordinator 1/Accountant 1 Hour $ 117.00 10% 105.30 $ -$ -$ -$ 0 $ - Administrator/Project Assistant/Billing Specialist Hour $ 10% 98.00 $ 88.20 -$ -$ -$ 0 $ - Total Terraphase Labor $ 8,777 7,398$ 18,815$ $ 34,990
RSI (Structural Engineering) T&M NTE $ 1.00 $ 1.00 -$ 2400 2,400$ -$ 2400 $ 2,400 PSI (Electrical Engineering) T&M NTE $ 1.00 $ 1.00 -$ 2400 2,400$ -$ 2400 $ 2,400 Total Subcontractor Costs $ - 4,800$ -$ $ 4,800
Total Other Direct Costs $ - -$ -$ $ -
Direct Cost Handling 10% 10.0% $ - 480$ -$ $ 480Total Direct Costs $ - 5,280$ -$ $ 5,280 Truck/Vehicle (day) Day $ 196.00 $ 196.00 -$ -$ -$ 0 $ - IPad and Electronic Field Data (day) Day $ 38.00 $ 38.00 -$ -$ -$ 0 $ - Field Health and Safety and Decon Supplies (daily
fee) Day $ 32.00 $ 32.00 -$ -$ -$ 0 $ -
Total Terraphase Equipment/Supplies (ERS) $ - -$ -$ $ - Mileage mile $ 0.670 $ 0.670 -$ -$ 60 40.20$ 60 $ 40.20 Total Travel Costs $ - -$ 40.20$ $ 40.20
Total Estimated Project Unit Costs $ 12,678 8,777 $ 18,856 $ 40,310 $ Travel Costs
Task 1 Total
Labor
Direct Costs
Subcontractor
Other Direct Costs
Terraphase Equipment/Supplies (ERS)
Task 2.3: Bid Period
Category Units Design Support
2024
Standard
Rate
Discount Rate
Task 3.1: Development
of IFB PS&E
Task 3.2: RFP Design
Support
Terraphase Engineering Inc. Page 4 of 4