SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
Wastewater Capital Programs Quarterly Report
Q1 Fiscal Year 2024-2025 (July 2024 – Sep 2024)
Bessie Tam, Wastewater Capital Programs Director, Infrastructure Presented to the San Francisco Public Utilities Commission December 10, 2024
SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
Construction Updates
2 Anticipated Completion:
Winter 2025
New Treasure Island
Wastewater Treatment Plant
As-needed Sewer Main
Replacement No. 8
(Irwin Street)
Anticipated Completion:
Winter 2025
Anticipated Completion:
Winter 2026
Channel Force Main Intertie
(Contract F: Large Diameter Sewer
Castro–Mission)
SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
SSIP Phase 1 Status
3 PROJECT COUNT BY PHASE
(as of June 2024)
Planning
$20M
(1 Project)
Phase 1
$4.401M
(70 Projects)
Design
$164M
(4 Projects)
Completed
$525M
(49 Projects)
Construction
$3,547M
(7 Projects)
Bid & Award
$0
(0 Projects)
Closeout
$109M
(8 Projects)
Multi-Phases
$36M
(1 Project)
69.6% Complete
PROJECT COUNT BY PHASE
(as of September 2024)
Planning
$22M
(1 Project)
Phase 1
$4.707M
(70 Projects)
Design
$152M
(4 Projects)
Completed
$516M
(50 Projects)
Construction
$3,885M
(7 Projects)
Bid & Award
$0
(0 Projects)
Closeout
$96M
(7 Projects)
Multi-Phases
$36M
(1 Project)
67.7% Complete
SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
SSIP Status – Cost Summary
4 Section I.3 SSIP
Table 3
Negative numbers reflect cost increases
Subprograms (includes other SSIP)
Expenditures to
Date
($ Million) (A)
Current
Approved
Budget
($ Million) (B)
Current
Forecasted
Budget
($ Million) (C)
Cost Variance
($ Million)
(D = B - C)
Cost Variance
Over Reporting
Period ($ Million)
(E)
Treatment Facilities $2,665.1 $6,202.1 $6,202.1 $0.0 $0.0 Collection System $317.7 $611.5 $611.5 $0.0 $0.0
Stormwater Management $117.1 $343.5 $343.5 $0.0 $0.0
Flood Resilience Projects $59.6 $766.0 $766.0 $0.0 $0.0 Land Reuse Projects $85.6 $88.9 $88.9 $0.0 $0.0
Program Management (PM) $174.6 $340.0 $340.0 $0.0 $0.0
Overall Program Total $3,419.6 $8,351.8 $8,351.8 $0.0 $0.0 SSIP Phase 1 Total $3,270.3 $4,707.4 $4,707.4 $0.0 $0.0 Other SSIP Subtotal
(Phase 2 and 3 priorities)
$149.3 $3,644.4 $3,644.4 $0.0 $0.0
SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
Facilities and Infrastructure Status – Cost Summary
5 Section II.3 F&I Program
Table 3
Subprograms
Expenditures to
Date
($ Million) (A)
Current
Approved
Budget
($ Million) (B)
Current
Forecasted
Budget
($ Million) (C)
Cost
Variance
($ Million)
(D = B - C)
Cost Variance
Over Reporting
Period ($
Million) (E)
Facilities and Infrastructure Program $130.2 $484.3 $484.3 $0.0 $0.0 SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean. 6 Design
1. Completed Conceptual Engineering Report: Oceanside Plant (OSP) Condition Improvement Projects, Part 2 – Contract A:
OSP 620 Digestion Health & Safety, Mechanical
Improvements
2. Completed 65% Design: Combined Sewer Discharge (CSD) Structure Rehab and Upgrades, Part 1 – Mariposa, Evans & Lake Merced CSDs
3. Completed 95% Design: (a) Folsom Area Stormwater
Improvement Project (Contract B: Tunnel); (b) Folsom Area Stormwater Improvement Project (Contract C: Box Sewer)
Construction
1. Sunnydale Pump Station Safety Improvements
2. Seacliff No. 1 Pump Station and Force Main Upgrade
Capital Programs Milestones
Section I.5 SSIP
Budget and Schedule
Trend Summary
L-Taraval (Interdepartmental Project)
Ribbon Cutting Ceremony
SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
Southeast Plant Biosolids Digester Facilities Project
7 Planning through Bid & Award Construction Close Out
Project Schedule:
Project Cost: $2,673M
Progress and Status:
1. Installation of digesters’ exterior panels and
coating of digester interior is progressing.
2. Mechanical, electrical, and plumbing installations
are ongoing in the digester basement, solids
pretreatment building, dewatering facility and
supporting facilities and pipe galleries.
3. The tank silos for the dewatered biosolids have
been assembled and placed into the dewatering
building
.
2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029
SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
Southeast Plant New Headworks Facility Project
Project Cost: $717M
Progress and Status:
1. The new Headworks substations received permanent
power.
2. Equipment pretest checks and functions testing is on- going.
3. Performance testing with influent wastewater is
underway.
4. Completed installation of influent pumps, dewatering pump, coarse screen, level sensors, and
modifications to the hydraulic gate for one of two
influent channels.
8 Planning through Bid & Award Construction Close Out
2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029
Project Schedule:
SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
MOVING FORWARD. sfpuc.org/ssip
Images courtesy of Engineering Archives Photography/Robin Scheswohl and Sabrina Wong