Central Reservoir Replacement Project
| Agency: | East Bay Municipal Utility District |
|---|---|
| State: | California |
| Type of Government: | State & Local |
| NAICS Category: |
|
| Posted Date: | Feb 23, 2024 |
| Due Date: | Apr 22, 2024 |
| Bid Source: | Please Login to View Page |
| Contact information: | Please Login to View Page |
| Bid Documents: | Please Login to View Page |
The Central Reservoir Replacement Project (Project) involves replacing East Bay Municipal Utility District’s (EBMUD) 154-million-gallon (MG) open-cut reservoir with three new 14-MG prestressed concrete tanks situated within the northern portion of the existing reservoir basin. EBMUD is requesting professional services proposals for the design of the Project.
Please respond to this RFP no later than 4:00 p.m. on Monday, April 22, 2024. Completed proposal should be mailed or delivered to:
| Responses delivered by mail (USPS): | Responses delivered by service (Fed Ex, UPS, DHL, etc): |
|
Roya Yazdani
|
Roya Yazdani
|
If you have questions regarding this RFP, please contact Roya Yazdani, Associate Civil Engineer at (510) 287-7064, centralreservoirreplacement@ebmud.com cc: roya.yazdani@ebmud.com .
RFP document(s)
| Document | Type | Size |
| Central Reservoir Replacement Consultants - QA | ||
| Central Reservoir Replacement - RFP | 2.3 MB |
Attachment Preview
Central Reservoir Replacement Project – Consultants Q&A on 10/3/2023
• Notes and Disclaimer:
o The information provided in response to the questions below represents the
responses given on 10/03/2023 during the meetings the District held with the
consultants who had expressed interest in submitting a proposal for design
services for the Central Reservoir Replacement Project. However, it is imperative
to note that the final RFP documents, when issued by the District, will supersede
any information presented here. In the event of any discrepancies between the
responses provided below and the details outlined in the upcoming official
District RFP documents, the latter will take precedence. The responses shared
below serve to convey the main concepts discussed during pre-RFP consultant
meetings but may not reflect the precise language used during the pre-RFP
consultant meetings.
o Some of the questions and answers provided here are derived from the
consultants emails following the Pre-RFP consultant meetings on 10/3.
o Item No. 69 includes information received from DN Tanks on 11/2/2023,
following a meeting with them on 10/24/2023.
o Some responses may be more comprehensive than what was discussed during
the pre-RFP consultant meetings and there are some post-meeting updates
included.
o The District’s Reservoir Design Guide, provided in response to Question No. 17
below, is primarily intended for internal District use. While the Consultant will be
held to the minimum requirements outlined in this design guide, it is important
to note that the RFP will take precedence and supersede any guidelines and/or
specifications included in the guide.
o Environmental Science Associates (ESA), referred to in Question 3, was hired by
the District during the Project planning phase to provide consulting services for
the preparation of the EIR.
• Contact Information:
o For individuals requiring access to the underlined documents, please send an
email to centralreservoirreplacement@ebmud.com. Kindly cc
roya.yazdani@ebmud.com in your correspondence. Include your first and last
name, e-mail address, and the name of your organization. Upon receipt of this
information, access will be granted accordingly.
Summary of Consultant questions and District answers:
1. “The EIR states that the site will be “balanced”. Are the preliminary earthwork calcs
available?”
Cut and fill details are included in the value engineering (VE) report and the cut/fill
analysis report. The environmental impact report (EIR) also states that the final site
elevations would be adjusted so that no soil would be imported or exported from the
site. This needs to be analyzed and confirmed by the consultant. Details regarding this
task will be included in the RFP.
2. “Was a preliminary Geotechnical report completed? If so, is that report available? Is
the design for CDSM columns final? Will the design team be asked to consider other
foundation types?”
It was not feasible to remove Central Reservoir from service to conduct a
comprehensive subsurface investigation within the basin during project planning. The
initial geotechnical analysis is based on recent geotechnical investigations which were
performed on the perimeter of Central Reservoir. Geotechnical information at the
center of the reservoir was limited and based on historical explorations and maps.
Detailed information about the soil sampling conducted at the perimeter of the site, the
soil and settlement characteristics, and preliminary engineering analyses conducted to
analyze the substructure alternatives can be found in the VE report. Uncertainties
regarding the subsurface stratigraphy and the material properties of the underlying
subgrade exist. Therefore, a comprehensive subsurface investigation needs be
completed prior to the final design for the Project, to better characterize the subsurface
conditions within the entire footprint of the proposed Project.
Cement deep soil mixing (CDSM) was the recommended subsurface alternative from the
VE report. The District is conducting an evaluation to finalize the approach. Details will
be included in the RFP.
Please refer to District’s answer to Question 25, below, which describes the District’s
two main delivery alternatives that should be evaluated by Consultant.
3. “Will ESA be under contract with EBMUD for coordination during design and
construction? What about other consultants involved in the planning effort for
landscape architecture, traffic planning, etc.? Can we include those firms on our team
as appropriate?”
The original scope and budget in the ESA contract include the following as optional
tasks:
Task 20.5 Design: Prepare Landscape and Architectural Plans and Specifications
Task 20.8 Construction: Landscape and Architectural Services
Further details will be included in the RFP.
4. “Can we have access to the drawings for existing site piping, the reservoir itself (1961
retrofits), and the existing ACS?”
Drawings
5. “Beyond what is listed in the EIR, what sort of interactions with the community are
expected? Any improvements to the adjacent recreational area? Will that area remain
open during construction?”
Interactions with the Redwood Day School will be handled through the District.
There will be a pre-construction meeting to inform the neighborhood about:
• Noise monitoring plan
• Hazardous materials removal plan
• Community notification procedures particularly the school in advance of
demolition and disturbance of asbestos materials
The District will lead the community discussions; however, the Consultant is expected to
provide support as needed, including but not limited to having the Hazamt expert
present during the community meeting(s).
The Project does not require the construction or expansion of recreational facilities.
Construction would not result in closure of the Central Reservoir Recreation Area and
construction activities would be primarily confined to the reservoir site and to the 25th
Avenue/East 29th Street intersection. Therefore, no impacts are anticipated.
6. “How will the system function during construction? Can the Central Reservoir Service
Area operate without this storage? Is temporary storage required?”
Model simulations demonstrate that the removal of storage from the outage of Central
Reservoir can be mitigated by the addition of storage at the southern basin of Dunsmuir
Reservoir. Further details can be found in the outage plan.
7. “How certain are you of the 50 MG new capacity? Should we consider leaving space
for a future tank?”
The Central Reservoir Replacement Project includes replacement of the existing 154-
MG, open-cut Central Reservoir with three new 14-MG concrete tanks within the
existing reservoir basin, which accounts for projected demand growth in the Central
Reservoir service area.
All tanks may not be placed in service from the beginning; the empty tank(s) will be
rotated due to settlement concerns.
8. “Is the site plan confirmed? Will you ask the design engineer to re-consider the site
plan?”
The tanks diameter would change as the EIR shows 17-MG tanks and that has changed
to 14-MG tanks. It is expected that the site plan follows the general look of that included
in the EIR.
9. “Are the tanks going to be new prestressed tanks? Are you looking for an analysis of
alternatives such as cast-in-place concrete and steel? Or is that decision made?”
Tanks will be pre-stressed concrete tanks. Refer to the VE report for the alternative
analysis.
10. “Have you done any yard piping pre-design? It seems the preliminary design would
require pipe to be installed through the pier grid for the new foundation.”
Yard-piping will be completed as part of design.
11. “What skills would your ideal PM have? Are you looking for a technical PM or more of
a team leader?”
It's important to have a PM that possesses a balance of technical knowledge and strong
team leadership skills. This ensures that they can effectively communicate and
coordinate with the technical experts while also managing the project's overall
execution, timeline, and resources.
The PM should balance the team’s strengths and weaknesses and the ideal PM for the
team will be considered by evaluating the team as a whole.
In general, it is expected that the PE provides the technical skills and the PM mainly
focuses on the leadership skills.
12. “The DEIR Project Description describes the tank foundation as CDSM columns
overlain by a 30-foot-thick layer of lime or cement-treated soil. Is this approach a
design decision that’s already been made, or will the selected consultant develop the
foundation design?”
CDSM was the recommended subsurface alternative from the VE report. The District is
conducting an evaluation to finalize the approach. The details will be included in the
RFP.
13. “Can EBMUD share any site-specific geotechnical data from dam safety investigations
or maybe construction of I-580? From original reservoir construction?”
See response to question 2.
14. “Can EBMUD share as-built drawings of the existing reservoir and associated
distribution infrastructure? Or as-built drawings associated with the storm drain
system discharging to Sausal Creek?”
Drawings
15. “Will extensive modification of the City’s portion of the storm drain system be
required?”
The EIR does not state any required modifications to the City's portion of the storm
drain system.
16. “Can EBMUD share the Central Reservoir Replacement Value Engineering Project Final
Report, (AECOM, 2017), referenced in Chapter 4 of the DEIR?”
VE report
17. “Can EBMUD share EBMUD Reservoir Design Guide (EMBUD 2017e), referenced in
Chapter 2 of the DEIR?”
Reservoir Design Guide
18. “Maintaining service to customers during reservoir demolition and construction is
obviously critical. Can you describe your vision regarding the roles and responsibilities
of the Replacement design team, the construction contractor(s) and EBMUD?”
The District’s intent is to retain the services from the same Consultant that completed
the design for the Project to also provide Engineering Services During Construction
(ESDC), under a separate future contract.
Refer to the outage plan for the roles and responsibilities during the outage. Detailed
roles and responsibilities will be defined in the specifications and discussed during the
pre-construction meeting.
19. “We understand that a separate specialty firm will design and construct the tanks.
How do you envision coordination occurring between the Replacement design team
and tank designers? Will the tank designers be integrated into our team? Will they be
under contract to EBMUD during site design?”
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