1 December 12, 2025
Infrastructure Division
Approved Increase of Cost and Duration Contingency
for Contract WD-2794B Sunol Long Term
Improvements – Alameda Creek Watershed Center
Alameda Creek Watershed Center
Commission Action Request
2 Approve an increase of $500,000 to the cost contingency and an increase of 910 calendar days to the duration contingency for Contract No. WD-2794B, Sunol Long Term Improvements Alameda Creek Watershed Center
Alameda Creek Watershed
Center Project
3 Scope of contract includes:
• Construction of a one-story LEED Gold,
net-zero energy facility that will include an
interpretive display exhibit area,
photovoltaic system, a freshwater stream
profile aquarium, history display alcoves,
a watershed discovery lab classroom, a
community multi-purpose room,
restrooms, an entry plaza, a reception
area, patios, and administrative offices
• Construction of a 2.5-acre discovery trail
area with native plant landscaping,
irrigation, meandering trails, seating areas
and water and landscape features
• Installation of underground utilities
• Improvements around Sunol Temple
• Site restoration and paving
Alameda Creek Watershed Center
Current Status and Remaining Work
• Construction 97% complete.
• Exhibit installation and punchlist repairs underway.
• Gutter system repairs underway.
• Water leakage investigation and repairs underway.
• 2-year facility maintenance period to start after substantial completion. 4 Alameda Creek Watershed Center
Current Status and Remaining Work
5 Requested Cost and Duration
Contingency Increases
Why Increases in Cost and Duration Contingencies are necessary? • Request $500,000 in cost contingency and 910 calendar days contract duration associated with potential extended overhead, exhibit installation and punchlist repairs, and leak investigation and repairs.
• 2-year facility maintenance for major systems to start after substantial completion. 6 2020 2021 2022 2023 2024 2025 2026 2027 2028
Requested 910 Calendar DaysWD-2794B Previous Authorized Contract Days Thank You
7 DEPARTMENT
Water Enterprise
AGENDA NO.
13 MEETING DATE
December 9, 2025
AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
Calendar: Regular Calendar
Project Manager: Bryan Dessaure
Approve Increase to the Cost and Duration Contingencies for Contract No. WD-2794B, Sunol Long Term Improvements Alameda Creek Watershed Center
Summary of Proposed
Commission Action:
Approve an increase of $500,000 to the cost co ntingency and an increase of 910 calendar days to the duration contingency for Contract No. WD-2794B, Sunol Long Term Improvements Alameda Creek Watershed Center, with S.J. Amoroso Construction Co., for a revised cost limit of $36,905,700 and a revised duration limit of 3,033 consecutive calendar days (approximately seven years and ten months), to provide time to complete the fabrication, installation, and corrective actions related to the redesigned exhibits and to investigate and address water leaks within the facility , including potential additional extended overhead costs related to the redesign of the exhibits and time to cover the post -construction maintenance services that were included in the original contract scope.
Background: The San Francisco Public Utilities Commission (SFPUC) Water Enterprise Alameda Creek Watershed Center will provide a gathering place for increasing the awareness and appreciation of the natural, cultural, scenic, and recreational resources of the Alameda Creek Watershed while increasing awareness and appreciation of the SFPUC water supply system, including its history and current operations.
The goals of the project include:
• Increasing the awareness and appreciation of the SFPUC water supply system within the Alameda Creek watershed and the Sunol Valley, including its history and development by the Spring Valley Water Company, and its current operations under the SFPUC Water Enterprise.
• Increasing the awareness and appreciation of the Alameda Creek watershed’s natural resources and the SFPUC’s work to protect and restore these resources , as described in the Water Enterprise Environmental Stewardship Policy.
• Reflecting the importance of the Alameda Creek watershed and the relationship between watershed stewardship, natural resources management, and a reliable water supply.
• Drawing connections between the agricultural history of Sunol Valley, the Alameda Creek ecosystem, and development of water Agenda Title: WD-2794B, Sunol Long Term Improvements Alameda Creek Watershed Center Commission Meeting Date: December 9, 2025
resources by the Spring Valley Water Company and the San Francisco Public Utilities Commission.
• Achieving a Leadership in Energy and Environmental Design (LEED) Gold designation for facility construction . Interpreting the principles of sustainable building to visitors including the use of solar energy, water conservation, the use of recycled materials, energy efficient heating and cooling, stormwater management, sustainably grown products, and native drought tolerant landscaping. • Supporting and expanding the current implementation of a fourth through eighth grade education program and construction of an outdoor classroom, in cooperation with Alameda County Resource Conservation District.
• Providing a hub for a future regional trail system connecting trails from surrounding parks, including the Bay Area Ridge Trail and East Bay Regional Park District operations.
• Providing meeting space for SFPUC staff, SFPUC wholesale customers, and other local agencies and districts to conduct workshops and conferences.
On December 10, 2019, by Resolution No. 19-0232, this Commission awarded Contract No. WD -2794B, Sunol Long Term Improvements Alameda Creek Watershed Center , to S.J. Amoroso Construction Co., Inc., in the amount of $27,577,000 and for a duration of 690 consecutive calendar days.
On January 11, 2022, by Resolution No. 22- 0007, this Commission approved an increase of $2,771,000 to the existing cost contingency and an increase of 207 calendar days to the existing duration contingency, for a revised cost limit of up to $33,105,700 and a revised duration limit of up to 966 calendar days.
On December 13, 2022, by Resolution No. 22- 0205, this Commission approved an increase of $1,300,000 to the existing cost contingency and an increase of 201 calendar days , for a revised cost limit of up to $34,405,700 and a revised duration limit of up to 1,167 calendar days.
On November 14, 2023, by Resolution No. 23- 0199, this Commission approved an increase of $2,000,000 to the existing cost contingency and an increase of 956 calendar days to the existing duration contingency, for a revised cost limit of $36,405,700 and a revised duration limit of 2,123 calendar days.
Description of Scope of
Work:
The contract work location is in Sunol, California. The contract work consists of:
• Construction of a one-story LEED Gold facility that will include an interpretive display exhibit area, photovoltaic system, a freshwater stream profile aquarium, history display alcoves, a Agenda Title: WD-2794B, Sunol Long Term Improvements Alameda Creek Watershed Center Commission Meeting Date: December 9, 2025
watershed discovery lab classroom, a community multi-purpose room, restrooms, an entry plaza, a reception area, patios, and administrative offices.
• Construction of a 2.5-acre discovery trail area with native plant landscaping, irrigation, meandering trails, seating areas and water and landscape features.
• Site restoration of the Temple area forecourt.
• Construction of new stairs and ramps to the picnic area. • Installation of underground utilities.
• Site restoration and paving.
• Two years of facility maintenance following substantial completion of the construction.
The contract work under Contract No. WD-2794B is on-going and was approximately 97% complete as of the end of October 2025.
Changes and
Modifications to the
Contract:
Modifications Nos. 1 to 39: Staff issued Modification Nos. 1 to 39 , increasing the contract amount by $3,631,261 and the contract duration by 477 calendar days, in accordance with Resolution Nos. 22-0007 and 22-0205, to provide third-party testing & inspection; time extension for COVID-19; bird safe window -
glazing; water feature equipment
revisions; additional conduit for backup generator system; improvements to address unsuitable soil conditions; mechanical courtyard extension; additional electrical and communication conduit and cabling to exhibits; modifications to mechanical shades, sound systems, Wi-Fi access point modules, network equipment, door hardware, cabinetry, restroom fixtures, and wood ceiling; modifications to sound system in ceiling; heating, ventilation, and air conditioning (HVAC) modifications; fabrication and installation of the redesigned exhibits; site hardscape modifications; power extension to the wheelchair lift at the Sunol Temple; credit for electrical conduits; epoxy moisture membrane and waterproofing; access road improvements; photovoltaic system and exhibit modifications; electrical and electric vehicle charging station upgrades; additional painting and site work; and non-compensable time extension related to concurrent delays; for a revised contract amount of $31,208,261 and a revised contract duration of 1,167 consecutive calendar days.
Modifications Nos. 40 to 45: Staff issued Modification Nos. 40 to 45, increasing the contract amount by $1,651,119 and the contract duration by 375 calendar days, in accordance with Resolution No. 23-0199, to provide modifications to exhibits, aquarium rockwork, pond raw water plumbing systems and exterior exit door openers; fill and stain chips and cracks in concrete topping slab; bluestone paver replacement; bluestone paver etching modifications, deer fencing and gate additions and repairs; added aquarium maintenance scope; berm remediation work; water leak mitigation in multipurpose room; and non - Agenda Title: WD-2794B, Sunol Long Term Improvements Alameda Creek Watershed Center Commission Meeting Date: December 9, 2025
compensable time extension related to concurrent delays; for a revised contract amount of $32,859,380 and a revised contract duration of 1,542 consecutive calendar days.
Requested Increase to Contract Cost and Duration Contingencies:
Staff recommends the Commission approve an increase of $500,000 to the existing cost contingency and an increase of 910 calendar days to the existing duration contingency, for a revised cost limit of $36,905,700 and a revised duration limit of 3,033 calendar days , to provide additional time for fabrication, installation and corrective actions related to the redesigned exhibits and to investigate and address water leaks within the facility, time for the implementation of the two- year maintenance period starting after substantial completion , time for punch list work and contract closeout, and potential additional extended overhead costs related to the redesign of the exhibits. The project team continues to work with the contractor on the exhibits and establishment of substantial completion date.
Budget & Costs: Funding: Project No. 10015124, Sunol Long Term Improvements Original Contract Amount: $27,577,000
Original 10% Cost Contingency: $2,757,700
Approved Increase to Cost Contingency: $6,071,000
Modified Increases to Contract Amount: $5,282,380
Total Current Contract Amount: $32,859,380
Current Cost Contingency: $3,546,320
Requested Additional Cost Contingency: $500,000
[Proposed] Total Revised Cost Limit: $36,905,700
Schedule: Notice-to-Proceed Date: March 9, 2020
Original Contract Duration: 690 consecutive calendar days Original 10% Duration Contingency: 69 calendar days
Approved Increase to Duration Contingency: 1,364 calendar days Modified Increases to Contract Duration: 852 calendar days Total Current Contract Duration: 1,542 consecutive calendar days Current Duration Contingency: 581 calendar days
Requested Additional Duration Contingency: 910 calendar days [Proposed] Total Revised Duration Limit: 3,033 consecutive calendar days
Local Business
Enterprise Utilization
and Non-Discrimination
in Contracting
Ordinance:
The Contract Monitoring Division established a Local Business Enterprise (LBE) subcontracting requirement of 11% for this contract.
The contractor committed to a LBE subcontractor participation of
11.01% in its bid submittal, and this remains unchanged.
Environmental Review: On December 2, 2015 , the Planning Department issued a Final Mitigated Negative Declaration for the Sunol Long Term
Agenda Title: WD-2794B, Sunol Long Term Improvements Alameda Creek Watershed Center Commission Meeting Date: December 9, 2025
Improvements Project (Case No. 2012.0054E) prepared pursuant to the California Environmental Quality Act (CEQA).
On December 8, 2015, by Resolution No. 15- 0264, this Commission adopted the Final Mitigated Negative Declaration
, made the CEQA
findings, adopted a Mitigation and Monitoring Reporting Program , as required by the CEQA, and approved the Sunol Long Term
Improvements Project, which includes the Alameda Creek Watershed Center.
On September 20, 2022, the Planning Department issued a Minor Project Modification to the Final Mitigated Negative Declaration for the creation of a new graveled access road and to convert the temporary Plant Nursery at the site to a permanent facility.
The work under Contract No. WD -2794B, Sunol Long Term
Improvements Alameda Creek Watershed Center, is within the scope of the project authorized under the
Final Mitigated Negative
Declaration and Minor Project Modification.
The Final Mitigated Negative Declaration, Minor Project Modification to the Final Mitigated Negative Declaration , Resolution No. 15-0264, CEQA Findings, and the Mitigation and Monitoring Reporting Program can be found here:
https://sfpuc.sharefile.com/d-s7df2f1172eb84e19beb1b2d7c9212822
Agenda Title: WD-2794B, Sunol Long Term Improvements Alameda Creek Watershed Center Commission Meeting Date: December 9, 2025
Location Map
Project Site
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO.
WHEREAS, On December 10, 2019, by Resolution No. 19- 0232, this Commission awarded Contract No. WD -2794B, Sunol Long Term Improvements Alameda Creek Watershed Center, to S.J. Amoroso Construction Co.; and
WHEREAS, March 9, 2020 was the construction contract Notice-to-Proceed date; and
WHEREAS, The original contract amount was for $27,577,000 and the original contract duration was 690 consecutive calendar days; and
WHEREAS, On January 11, 2022, by Resolution No. 22-0007, this Commission approved an increase of $2,771,000 to the existing cost contingency and an increase of 207 calendar days to the existing duration contingency, for a revised cost limit of up to $33,105,700 and a revised duration limit of up to 966 calendar days; and
WHEREAS, On December 13, 2022, by Resolution No. 22- 0205, this Commission approved an
increase of $1,300,000 to the existing cost contingency and an increase of 201 calendar days, for a revised cost limit of up to $34,405,700 and revised duration limit of up to 1,167 calendar days; and
WHEREAS, Modifications Nos. 1 to 39 increased the contract amount by $3,631,261 and the contract duration by 477 calendar days , to provide third- party testing & inspection; time extension for COVID-19; bird safe window-glazing; water feature equipment revisions; additional conduit for backup generator system; improvements to address unsuitable soil conditions; mechanical courtyard extension; additional electrical and communication conduit and cabling to exhibits; modifications to mechanical shades, sound systems, Wi-Fi access point modules, network equipment, door hardware, cabinetry, restroom fixtures, and wood ceiling; modifications to sound system in ceiling; HVAC modifications; fabrication and installation of the redesigned exhibits; site hardscape modifications; power extension to the wheelchair lift at the Sunol Temple; credit for electrical conduits; epoxy moisture membrane and waterproofing; access road improvements; photovoltaic system and exhibit modifications; electrical and electric vehicle charging station upgrades; additional painting and site work; and non- compensable time extension related to concurrent delays; for a revised contract amount of $31,208,261 and a revised contract duration of 1,167 consecutive calendar days; and
WHEREAS, On November 14, 2023, by Resolution No. 23- 0199, this Commission approved an increase o f $2,000,000 to the existing cost contingency and an increase of 956 calendar days to the existing duration contingency, for a revised cost limit of $36,405,700 and a revised duration limit of 2,123 calendar days; and
WHEREAS, Modifications Nos. 40 to 45 increased the contract amount by $1,651,119 and the contract duration by 375 calendar days , to provide modifications to exhibits, aquarium rockwork, pond raw water plumbing systems and exterior exit door openers; fill and stain chips and cracks in concrete topping slab; bluestone paver replacement; bluestone paver etching modifications, deer fen cing and gate additions and repairs; added aquarium maintenance scope; berm remediation work; water leak mitigation in multipurp ose room; and non-compensable time extension related to concurrent delays; for a revised contract amount of $32,859,379 and a revised contract duration of 1,542 consecutive calendar days; and
WHEREAS, Staff recommends that the Commission approve
an increase of $500,000 to
the existing cost contingency and an increase of 910 calendar days to the existing duration contingency, for a revised cost limit of $36,905,700 and a revised duration limit of 3,033 calendar days, to provide time to complete the fabrication, installation and corrective actions related to the redesigned exhibits, time to investigate and address water leaks within the facility , time for the implementation of the post -construction two-year maintenance period that is within the original contract scope, time for punch list work and contract closeout, and potenti al additional extended overhead costs related to the redesign of the exhibits; and
WHEREAS, The Contract Monitoring Division established a Local Business Enterprise (LBE) subcontracting participation of 11% for this contract, the contractor committed to a LBE subcontractor participation of 11.01% with its bid submittal, and this amount remains unchanged; and
WHEREAS, Funds are available from Project No. 10015124, Sunol Long Term Improvements; and
WHEREAS, On December 2, 2015, the Planning Department issued a Final Mitigated Negative Declaration for the Sunol Long Term Improvements Project (Case No. 2012.0054E) prepared pursuant to the California Environmental Quality Act (CEQA); and
WHEREAS, On December 8, 2015, by Resolution No. 15-0264, this Commission adopted the Final Mitigated Negative Declaration, made the CEQA findings and adopted a Mitigation and Monitoring Reporting Program , as required by the CEQA, and approved the Sunol Long Term Improvements Project, which includes the Alameda Creek Watershed Center; and
WHEREAS, On September 20, 2022, the Planning Department issued a Minor Project Modification to the Final Mitigated Negative Declaration for the creation of a new graveled access road and to convert the temporary Plant Nursery at the site to a permanent facility; and
WHEREAS, The work under Contract No. WD -2794B, Sunol Long Term Improvements Alameda Creek Watershed Center, is within the scope of the project authorized under the Final Mitigated Negative Declaration and Minor Project Modification; and
WHEREAS, The Planning Department is the custodian of records, located in the files for Case No. 2012.0054E, at 49 South Van Ness Avenue, Suite 1400, San Francisco, California; and
WHEREAS, Staff has made the Project files, including the Final Mitigated Negative Declaration, Minor Project Modification to the FMND, Resolution No. 15-0264, CEQA Findings, and the Mitigation and Monitoring Reporting Program available for review by this Commission and the public, and those files are part of the record before this Commission; and
WHEREAS, This Commission has reviewed and considered the information contained in the Final Mitigated Negative Declaration , the Minor Project Modification to the Final Mitigated Negative Declaration, the CEQA Findings, the Mitigation and Monitoring Reporting Program, and all written and oral information provided by the Planning Department, the public, relevant public agencies, SFPUC and other experts and the administrative files for the Project; now, therefore be it
RESOLVED, This Commission has reviewed and considered the Final Mitigated Negative Declaration and the Minor Project Modification to the Final Mitigated Negative Declaration and the record as a whole, finds that the Final Mitigated Negative Declaration is adequate for its use as the decision–making body for the Project and incorporates the CEQA Findings by this reference thereto as though set forth in this Resolution; and be it
FURTHER RESOLVED, This Commission further finds that since the Final Mitigated Negative Declaration and Minor Project Modification to the Final Mitigated Negative Declaration were finalized, there have been no substantial project changes and no substantial changes in project circumstances that would require major revisions to the Final Mitigated Negative Declaration and Minor Project Modification to the Final Mitigated Negative Declaration due to the involvement of new significant environmental effects or an increase in the severity of previously identified significant impacts, and there is no new information of substantial importance that would change the conclusions set forth in them; and be it
FURTHER RESOLVED, That this Commission hereby approves an increase of $500,000 to the existing cost contingency and an increase of 910 calendar days to the existing duration contingency for Contract No. WD -2794B, Sunol Long Term Improvements Alameda Creek Watershed Center, for a total cost contingency of $ 9,328,700 and a total duration contingency of 2,343 calendar days; and be it
FURTHER RESOLVED, That this Commission hereby authorizes the General Manager, or the General Manager’s designee, to consider and, if appropriate, to approve any future modifications to the contract, up to a total cost limit of $36,905,700 and up to a total duration limit of 3,033 calendar days.
I hereby certify that the foregoing resolution was adopted by the San Francisco Public Utilities Commission at its meeting of December 9, 2025.
Director of Commission Affairs
San Francisco Public Utilities Commission