WSIP Quarterly Update
Q1 | FY 2022 - 2023
December 13, 2022
Katie Miller, Director
Water Capital Programs
Infrastructure Division
$89M
$3,714M
Expended Remaining
WSIP Regional Program Status
(as of September 2022)
99%
% Complete
ExpendituresProject Count by Phase
$3.8B
(52 Projects)
Not
Applicable*
$12M
(1 Projects)
Completed
$3,481M
(47 Projects)
Construction
$215M
(3 Projects)
Closeout
$95M
(1 Project)
* “Not Applicable” category is for one project that does not include construction: Long-Term Mitigation Endowment
Regional WSIP Cost Summary
(from Table 5 –active projects only)
3 Program Name
Expenditures
to Date
($Million)
Current
Approved
Budget
($Million)
Current
Forecasted
Cost ($Million)
Cost
Variance
($Million)
San Joaquin Region - - - -
Sunol Valley Region $28.1 $50.0 $54.0 $4.0
Bay Division Region - - - -
Peninsula Region - - - -
San Francisco Regional
Region $122.6 $158.4 $158.4 -
Support Projects $0 $12.0 $12.0 -
Regional WSIP
(Total – Active Projects) $150.7 $220.4 $224.4 $4.0
Alameda Creek Recapture Project
4 Calaveras Dam Orthophoto from DroneApproved Budget: $43.97M Forecast Completion: June 2024
Current Phase: Construction
Expenditures to Date: $23.08M
Reason for Variance: Unforeseen conditions
(erosion + corrosion)
Progress and Status:
• Completed design modifications for relocation of
1) inlet pipeline alignment and 2) effluent
pipeline tie-in to Regional Water System.
• Commenced design for repair of 36-inch
diameter Sunol Pipeline (tie-in pipeline).
• Environmental permit modification for alternate
access road approved (photo - erosion on
existing road).
• Additional $2.6M and 252 days contingency
approved for construction contract ($1M WSIP
Director’s Reserve/$1.6M Water Enterprise CIP).
/ Forecast Cost: $47.97M
Regional Groundwater Storage and
Recovery Project
5 Calaveras Dam Orthophoto from DroneFountain Thistle Drone footage with GIS grid overlay Approved Budget: $158.35M
Forecast Completion: February 2027
Current Phase: Construction
Expenditures to Date: $122.59M
Progress and Status:
Contract A: Completed.
Contract B:
• Completion of construction deemed
September 2, 2022.
Contract C:
• Groundwater pumps pulled for inspection
and rehabilitation at Millbrae Yard and
Benjamin Franklin (photo) well stations.
Contract D:
• 100% design progressed.
• PG&E issued preliminary design and
proposed service agreement for power to
SSF Main well station on September 20.
QUESTIONS?
DATE: December 5, 2022
TO: Commissioner Newsha Ajami, President
Commissioner Sophie Maxwell, Vice President
Commissioner Tim Paulson
Commissioner Tony Rivera
Commissioner Kate Stacy
FROM:
Dennis J. Herrera, General Manager
SUBJECT: Water System Improvement Program
Quarterly Report (1
st Quarter / FY 2022-2023)
Enclosed please find the Water System Improvement Program (WSIP) Quarterly Report for the 1st Quarter (Q1) of Fiscal Year (FY) 2022-2023. The primary intent of the report is to provide the Commission, stakeholders, and the public with a status summary of the Water System Improvement Program based on data for the period of July 1, 2022 to September 30, 2022. This quarterly report provides a summary update on the Regional WSIP projects. The Local WSIP was completed in June 2020.
Quarterly Report Format Changes
In response to the Commission’s request for improved tracking of program history and project performance status reporting for greater accountability, starting with the WSIP Q1 FY22-23 Quarterly Report, staff have made the following revisions to the format of the report to be more consistent with reporting of all capital programs:
This report includes an Executive Summary, which provides a high-level summary of the program current status and key updates that may be newsworthy or noticeable to the Commission, stakeholders, and the public. This report will no longer contain the former “Table 3.3. Details on Transactions Out of and Into Contingency;” this information is no longer as valuable since there are only three projects remaining in construction. The Cost Summary Table 3.1 in Section 3 of this report contains a new “Cost Variance Over Reporting Period” column intended to highlight forecasted budget changes during the reporting period and to provide new quarterly information “at a glance.”
Water System Improvement Program Quarterly Report (Q1 / FY22-23) December 5, 2022
The Project Performance Summary Table 5, in Section 5 of the report, includes an additional column titled “% Cost Changes.” To move away from “traffic light” indicators but still provide useful information, projects with a forecasted cost overrun greater than 10%, or forecasted delay of greater than 6 months or 10%, will be highlighted to visually draw attention to these projects.
Project Status Reports are now provided in Section 6 of the report, combining the former Section 6 (“Projects Not Within Budget and/or Schedule”) and the former Appendix E (“Projects Within Budget and Schedule”). Former Appendices of the Report B (“WSIP Budget and Expenditures Histogram”) and C (WSIP Regional Program Staffing Plan”) are no longer provided.
QUARTERLY REPORT
Regional Projects
Q1 FY 2022 | 2023
July 2022 — September 2022
Rebuilding Today for a Better Tomorrow
Published: December 5, 2022
WSIP Quarterly Report
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WSIP Quarterly Report
EXECUTIVE SUMMARY
This quarterly report provides a summary update on the regional projects in the Water System Improvement Program (WSIP) for the 1st Quarter (Q1) of Fiscal Year (FY) 2022- 2023. The primary intent of the report is to provides the San Francisco Public Utilities Commission (“Commission”), stakeholders, and the public with a status summary of the program’s regional projects for the period of July 1, 2022 through September 30, 2022.
This quart
erly report incorporates program and project changes from the March 2022 Proposed Revised WSIP that was approved by the Commission on April 26, 2022 by resolution No. 22-0080.
Program
Current Status:
Over
all, WSIP Regional projects are 98. 7% complete as of September 30, 2022. As of the end of the reporting period, planning, environmental, design, and construction activities are 100%, 99.9%, 99.9%, and 98.4% complete, respectively. Figure A and Table A show the number of WSIP Regional projects and the total approved value of these projects that are active in various project phases.
Figure A.
Total Current Approved Budget for Regional Projects Active in Each Phase i
WSIP Quarterly Report
Table A. Status of WSIP Regional Projects (as of September 30, 2022) Project Phase No. of
Projects
Percent by No.
of Projects
Total Project
Value ($M)
Percent by
Project Value
Planning 0 0% $0 0%
Design 0 0% $0 0%
Bid & Award 0 0% $0 0%
Construction 3 6% $215 6%
Close-Out 1 2% $95 2%
Completed 47 90% $3,481 92%
Not Applicable1 1 2% $12 0%
Total 52 100% $3,803 100%
Notes: (
1) “Not Applicable” category is for the two projects that do not include construction: Long- Term Mitigation Endowment and Watershed and Environmental Improvement Program.
As of
the end of the reporting period, three (3) regional projects with a total value of $215M are in construction and forty-eight (48) projects with a total value of $3,576M are in close- out or have been completed. Forty-one (41) out of forty-three (43) Regional WSIP projects with specific Level of Service (LOS) goals have achieved their LOS goals to date.
Tables B and C
provide an overall program-level cost and scheduled summary of the WSIP Regional Program. The total Current Approved WSIP Budget (including Regional and Local Programs, Local Water Supply Projects, and Financing Costs) and Current Forecasted Cost at completion are $4,787.8 million. The Current Approved WSIP Budget and Forecasted Cost at completion for only the Regional Program (including construction contingency) are each $3,803.1 million.
Table
B Program Cost Summary
Cost Categories
Expenditure
s
To Date
($ Million)
2005
Baseline
Budget
($ Million)
2022
Approved
Budget
($ Million)
Current
Approved
Budget (7)
($ Million)
Q1/FY22-23
Forecasted
Costs
($ Million)
Cost
Variance
($ Million)
(A) (B) (C) (D) (E) (F = D - E)
REGIONAL PROGRAM $3,714 $3,407 $3,803.1 $3,803.1 $3,803.1 - Local Improvement Projects $332 $383 $331.9 $331.9 $331.9 - Local Water Supply Projects $221 - $280.9 $280.9 $280.9 - Finance $372.0 $552.0 $372.0 $372.0 $372.0 -
PROGRAM TOTAL $4,639 $4,343 $4,787.8 $4,787.8 $4,787.8 - The Curren
t Approved and Forecasted Schedule completion for the Regional WSIP (Local WSIP was completed in June 2020) are both February 2027.
ii
WSIP Quarterly Report
Table C 2022 Approved vs. Q1/FY22-23 Forecasted Schedule Dates Category
2005
Baseline
Start
2022
Approved
Start
Current*
Approved
Start
Actual
Start
2005
Baseline
Finish
2022
Approved
Finish
Current*
Approved
Finish
Q1/FY22-
23 Forecasted
Finish
Schedule
Variance
(Months)
Regional
Program 03/01/03 03/31/03 03/31/03 03/01/03 06/30/14 05/05/23 02/01/27 02/01/27 - Local**
Program 03/01/03 03/31/03 03/31/03 03/01/03 06/28/13 7/31/18 06/03/20 06/03/20 Completed (-)
Overall
WSIP 03/01/03 03/01/03 03/01/03 03/01/03 06/30/14 05/05/23 02/01/27 02/01/27 - * The budget and schedule approved as part of the March 2022 WSIP, plus any additional budget and schedule changes approved by the Commission as part of additional contingencies on construction contracts.
** Excluding Local Water Supply project s
As of
the end of the reporting period, the forecasted total program cost (regional and local projects) is $4,787.8M, which is same as the current Commission Approved Budget. As of the end of the reporting period, $6M was transferred to the Construction Contingency from the p rogram’s Director’s Reserve budget. A ll approved change orders (COs) in contracts total $21.20M , and the current remaining construction contingency is $11.98 M. Also, as of the end of the reporting period, all pending and potential COs, and trends total $5.87M. Therefore, assuming all pending and proposed COs and trends become approved COs, the current forecasted remaining construction contingency is $6.11M.
UPDATE
ON PROJECTS IN CONSTRUCTION
As of the end of September 2022, WSIP regional construction contracts (including active, completed, and future contracts) are 99.0% complete overall, the same rounded percentage complete as last quarter.
As of the end of September 2022, monitored exposure hours on WSIP regional projects totaled 9.9 million construction person- hours. Since the implementation of the WSIP Safety Approach in April 2009, the total lost time incidence rate is 0.51, compared to the U.S. Bureau of Labor Statistics (BLS) industry average rate (2018) of 1.5.
The following is a summary of the progress made, issues encountered, and/or milestones achieved on the remaining WSIP Regional projects currently active in construction.
Regional G
roundwater Storage and Recovery
The Regional Groundwater Storage and Recovery (RGSR) Phase 1 construction contract (Contract B) reached final completion on September 2, 2022. For Phase 2A (Contract C), the groundwater pumps at Millbrae Yard and Benjamin Franklin Well Stations were pulled by the contractor for inspection, rehabilitation, and installation of cathodic protection systems. For Phase 2B (Contract D), the 100% design phase and procurement of easements and permits continued during the quarter.
Alameda C
reek Recapture Project
Construction of the Alameda Creek Recapture Facility is 22% complete as of the end of this quarter.
During the quarter, design modifications were completed for the water pipeline realignment due to bank iii
WSIP Quarterly Report
erosion conditions and for relocation the pipeline tie- in location due to existing pipeline corrosion. On September 13, the SFPUC Commission resolved to increase the construction contract cost contingency by $2.6M and the construction contract duration contingency by 252 days for repairs to the Sunol Pipeline, materials procurement for the realignment work, and to address cost and schedule delays related to the Department of Water Resource (DWR) permit. The contractor continued to report notices of material shortages, longer lead- time estimates, and cost increases related to COVID -19.
Coordination with the quarry operator on erosion repairs continued.
WSIP C
loseout Project- Sunol R egion
The subproject Alameda Creek Diversion Dam Power and Communication Facilities has completed two of its three job order contracts (JOCs 70- 09, 70-14) by the end of this quarter. This subproject has also extended for 6 months due to delay in sluice way repair and debris removal under JOC 70- 15 due to environmental conditions.
iv
TABLE OF CONTENTS
1. Program Description
2. Progra
m Status
3. Program Cost Summary
4. Program Schedule Summary
5. Projec t Performance Summary
6. Project Status Report
7. On-Going Construction
8. Projects in Closeout
9. Completed Projects
APPENDICE
S
A. Proj
ect Descriptions
B. WSIP
Approved Project-Level Schedule
C. List of
Acronyms
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WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 – 09/30/22)
1. PROGRAM DESCRIPTION
The Water System Improvement Program (WSIP) is a $4.8 billion, multi -year capital program to upgrade the City of San Francisco’s regional and local drinki ng water systems. The program will deliver improvements that enhance the City’s ability to provide reliable, affordable, high quality drinking water to its 26 wholesale customers and regional retail customers in Alameda, Santa Clara, and San Mateo Counties, and to 800,000 retail customers in San Francisco, in an environmentally sustainable manner. The WSIP i s structured to cost -effectively meet water quality requirements, improve seismic and delivery reliability, and achieve water supply goals.
Built in the early to mid- 1900s, the water system has many components nearing the end of their working life, with c rucial facilities crossing or in close proximit y to, three major earthquake faults. The San Francisco Public Utilities Commission ( SFPUC) initiated the WSIP to repair, replace, and seismically upgrade the system’s deteriorating pipelines, tunnels, dams, reservoirs, pump stations, storage tanks, and treatment facilities.
The program consists of 35 local projects located within San Francisco and 52 regional projects spread over seven different counties from the Sierra foothills to San Francisco. Local projects only benefit San Francisco residents whereas regional projects benefit both City residents and the 26 wholesale agencies that receive water from t he SFPUC. The management of regional projects is divided into 6 regions – San Joaquin, Sunol Valley, Bay Division, Peninsula, San Francisco Regional, and Support Projects.
The WSIP is funded through the issuance of revenue bonds. Local Measures A and E, which were approved by San Francisco voters in November 2002, allowed for the financing of improvements to the City’s water system using revenue bonds and/or other forms of revenue financing. Increases in the water rates of retail and wholesale customers are used to pay back the debt service on the bonds.
The program budget and schedule were originally adopted by the San Francisco Public Utilities Commission on March 1, 2003. The program at the time was referred to as the Capital Improvement Program (C IP). The scope of the CIP was changed significantly following the adoption of Level of Service (LOS) goals in early 2005. The program changes were so substantial that the program was renamed the WSIP and a new program budget and schedule were adopted on November 29, 2005.
Since the scope of the 2005 Revised WSIP is in general representative of the program that is in the end stage of being implemented today, the 2005 budget and schedule are considered the “Baseline Budget and Schedule.”
Subsequently, the WSIP Baseline Budget and Schedule were revised in 2007, 2009, 2011, 2013, 2014, 2015, 2016, 2017, 2018, 2020, and 2022, and these revisions were approved by the San Francisco Public Utilities Commission on February 26, 2008, July 28, 2009, July 12, 2011, April 23, 2013, April 22, 2014, December 8, 2015, April 26, 2016, February 14, 2017, April 10, 2018, April 14, 2020, and April 26, 2022, respectively. Refer to Appendix A for a scope description of all the regional projects included in the WSIP.
1 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 – 09/30/22)
2. PROGRAM STATUS
This first ( 1st) Quarterly Report fo r Fiscal Year (FY) 2022- 2023 presents the progress made on the WSIP Regional Program between July 1, 2022 and September 30, 2022. The program’s schedule and budget were last approved by the San Francisco Public Utilities Commission (SFPUC or Commissio n) on April 26, 2022. The WSIP Local Program was completed on June 3, 2020.
Figure 2.1 shows the total Current Approved Budget for the regional projects remaining in each phase of the prog ram as of September 30, 2022 . T he number of projects currently acti ve in each phase is shown in parentheses.
Figure 2.2 shows the number of regional projects in the following stages of the progra m as of September 30, 2022: Pre-construction, Construction, and Post-construction.
Program
Revision
Commission
Approval
Budget
($Million) Schedule(*)
2003 (Original) March 1, 2003 $3,628 03/15/16
2005 (Baseline) November 29, 2005 $4,343 06/30/14
2007 (Revised) February 26, 2008 $4,392 12/18/14
2009 (Revised) July 28, 2009 $4,586 12/04/15
2011 (Revised) July 12, 2011 $4,586 07/29/16
2013 (Revised) April 23, 2013 $4,640 04/11/19
2014 (Revised) April 22, 2014 $4,765 05/24/19
2015 (Revised) December 8, 2015 $4,765 05/24/19
2016 (Revised) April 26, 2016 $4,845 12/20/19
2017 (Revised) February 14, 2017 $4,845 12/20/19
2018 (Revised) April 10, 2018 $4,788 12/30/21
2020 (Revised) April 14, 2020 $4,788 05/05/23
2022 (Revised) April 26, 2022 $4,788 02/01/27
* Final Program Completion Date AB18
23: Notice of Changes to WSIP dated 1/18/200
Figure 2.1 Total Current Approved Budget
for Projects Active in Each Phase ($Million)
2 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 – 09/30/22)
Figure 2.3 summarizes the environmental review and permitting status of th e WSIP ’s 52 regional projects as of September 30, 2022.
2.1 Progress Towards Meeting Level of Service (LOS) Goals The scope of t he WSIP is based o n the following Level of Service (LOS) goals for the Regional Water System: Seismic Reliability, Delivery Reliability, Water Quality Reliability, and Water Supply Reliability.
Each project that reaches const ruction substantial completion co ntributes to increasing the overall reliability of the system and achieving progress towards meeting the overall LOS goals for the system.
Table 2.1 lists the projects with their individual Prima ry (P) and Secondary (S) contrib utions towards LOS goals, and indicates which projects have met their respective LOS goals. As can be seen in Table
2.1, the actual operational service start dates indicate that 41 of the 43 Regional WSIP projects with specific LOS goals have achieved their LOS goals to date. The other 9 Regional WSIP projects do not have specific LOS goals. The WSIP team remains committed to achieving the overall LOS goals established for the system.
Figure 2.2 Number of Projects in Pre-construction,
Construction, and Post-construction
Figure 2.3 Program Environmental
and Permitting Status
3 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 – 09/30/22)
Table 2.1 Progress Towards Meeting LOS Goals (1)
Project
No. Project Name / Construction Contract
Actual /
Approved
Substantial
Completion
Date
LOS Goals (P =Primary, S =Secondary) Actual
Operational
Service
Start
Construction
Progress
Toward LOS
Goals
Water
Quality
Seismic
Reliability
Delivery
Reliability
Water
Supply
San Joaquin Projects
CUW36401 Lawrence Livermore Water Quality
Improvement (Completed) 08/31/10 P 08/31/10 100%
CUW37301
San Joaquin Pipeline System (Completed)
(A) HH935A Crossovers
(B) HH935B Western Segment
(C) HH935C Eastern Segment
(A) 01/06/12
(B) 05/27/13
(C) 06/21/13
P
(A) 01/06/12
(B) 05/27/13
(C) 06/21/13
100%
CUW37302 Rehabilitation of Existing San Joaquin
Pipelines (Roselle Crossover; Completed) 05/13/11 P 05/13/11 100% CUW38401
Tesla Treatment Facility (Completed)
(A) DB116 Tesla Treatment Facility
Design-Build Contract
(B) HH953 Tesla Portal Protection
(A) 06/24/11
(B) 08/05/13 P S S (A) 06/24/11
(B) 08/05/13 100%
Sunol Valley Projects
CUW35201 Alameda Creek Recapture 11/18/22 P 22%
CUW35501
Standby Power Facilities - Various
Locations (Completed)
(A) WD-2553 East Bay - Standby Power
Facilities
(B) WD-2511 Peninsula - Standby Power
Facilities
(A) 09/11/08
(B) 04/15/10 P S (A) 09/11/08
(B) 04/15/10 100%
CUW35901 New Irvington Tunnel (Completed) 09/19/15 S P 02/27/15 100% CUW35902 Alameda Siphon #4 (Completed) 12/16/11 P S 12/16/11 100% CUW37001
Pipeline Repair & Readiness Improvements
(Completed)
(A) WD-2530 Phase A 8 Pipe Storage
Sites
(B) WD-2530 Phase B Pipe Rolling
Machine Facility @ Sunol Yard
(A) 02/09/07
(B) 07/14/08 P S (A) 02/09/07
(B) 07/14/08 100%
CUW37401
Calaveras Dam Replacement (Completed)
(A) WD-2551 Calaveras Dam
Replacement
(B) WD-2729 Alameda Creek Diversion
Dam
(A) 04/12/19
(B) 02/15/19
S P S
(A) 04/12/19
(B) 02/15/19
(A) 100%
(B) 100%
CUW37402 Calaveras Reservoir Upgrades (Completed) 10/06/05 P 10/06/05 100% CUW37403 San Antonio Backup Pipeline (Completed) 12/31/14 P 12/31/14 100% CUW38101 SVWTP Expansion & Treated Water
Reservoir (Completed) 05/17/13 P P 05/17/13 100%
CUW38601 San Antonio Pump Station Upgrade
(Completed) 06/30/11 P 06/30/11 100%
Bay Division Projects
CUW35301 BDPL Nos. 3 & 4 Crossover/Isolation
Valves (Completed) 11/15/07 P 11/15/07 100%
CUW35302 Seismic Upgrade of BDPL Nos. 3 & 4
(Completed) 10/26/15 P 06/20/14 100%
CUW36301 SCADA System - Phase II (Completed) 11/29/10 P 11/29/10 100% CUW36801 BDPL Reliability Upgrade – Tunnel
(Completed) 05/20/15 P S 10/15/14 100%
CUW36802
BDPL Reliability Upgrade – Pipeline
(Completed)
(A) WD-2541 East Bay
(B) WD-2542 Peninsula
(C) WD-2665 Cordilleras
(A) 12/09/11
(B) 06/13/12
(C) 03/05/13
P S
(A) 12/09/11
(B) 06/13/12
(C) 03/05/13
100%
CUW36803 BDPL Reliability Upgrade - Relocation of
BDPL Nos. 1 & 2 (Completed) 05/28/10 P 05/28/10 100% CUW38001 BDPL Nos. 3 & 4 - Crossovers (Completed) 08/15/12 P S 08/15/12 100% 4 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 – 09/30/22)
Project
No. Project Name / Construction Contract
Actual /
Approved
Substantial
Completion
Date
LOS Goals (P =Primary, S =Secondary) Actual
Operational
Service
Start
Construction
Progress
Toward LOS
Goals
Water
Quality
Seismic
Reliability
Delivery
Reliability
Water
Supply
CUW38901 SFPUC/EBMUD Intertie (Completed) 09/07/07 P 09/07/07 100% CUW39301 BDPL No. 4 Condition Assessment PCCP
Sections (Completed) 02/06/09 P S 02/06/09 100%
Peninsula Projects
CUW35401 Lower Crystal Springs Dam Improvements
(Completed) 11/20/11 P S 11/20/11 100%
CUW35601 New Crystal Springs Bypass Tunnel
(Completed) 07/14/11 P S 07/14/11 100%
CUW35701 Adit Leak Repair - Crystal
Springs/Calaveras (Completed) 11/30/07 P 11/30/07 100% CUW36101 Pulgas Balancing - Inlet/Outlet Work
(Completed) 02/02/06 P S 02/02/06 100%
CUW36102 Pulgas Balancing - Discharge Channel
Modifications (Completed) 10/23/09 P 10/23/09 100%
CUW36103 Pulgas Balancing - Structural Rehabilitation
& Roof Replacement (Completed) 07/26/11 P S 07/26/11 100% CUW36105
Pulgas Balancing - Modifications of the
Existing Dechloramination Facility
(Completed)
08/27/12 P S 08/27/12 100%
CUW36501 Cross Connection Controls (Completed) 11/26/08 P 11/26/08 100% CUW36601 HTWTP Short-Term Improvements - Demo
Filters (Completed) 01/11/06 P S 01/11/06 100%
CUW36603
HTWTP Short-Term Improvements -
Coagulation & Flocculation/Remaining
Filters (Completed)
12/21/09 P S 12/21/09 100%
CUW36701 HTWTP Long -Term Improvements
(Completed) 09/08/15 P S 09/08/15 100%
CUW36702 Peninsula Pipelines Seismic Upgrade
(Completed) 10/30/15 P 10/30/15 100%
CUW36901 Capuchino Valve Lot Improvements
(Completed) 02/14/08 P 02/14/08 100%
CUW37101 Crystal Springs/San Andreas Transmission
Upgrade (Completed) 06/30/14 P S 09/02/14 100%
CUW37801 Crystal Springs Pipeline No. 2 Replacement
(Completed) 01/31/13 P S 01/31/13 100%
CUW37901 San Andreas Pipeline No. 3 Installation
(Completed) 03/29/11 P S 03/29/11 100%
CUW39101 Baden & San Pedro Valve Lots
Improvements (Completed) 03/31/11 P S 03/31/11 100%
San Francisco Regional Projects
CUW30103
Regional Groundwater Storage and
Recovery
(A) WD-2600 Test Well Drilling
(B) WD-2668 Regional Groundwater
Storage and Recovery (Phase 1)
(C) Regional Groundwater Storage and
Recovery (Phase 2A)
(D) Regional Groundwater Storage and
Recovery (Phase 2B)
(A) 07/23/12
(B) 12/31/17
(C) 08/31/23
(D) 10/31/25
P
(A) 07/23/12
(B) 07/27/22
(A) 100%
(B) 100%
(C) 5%
(D) 0%
CUW35801 Sunset Reservoir - North Basin (Completed) 09/19/08 P S 09/19/08 100% CUW37201 University Mound Reservoir - North Basin
(Completed) 05/25/11 P S 05/25/11 100%
Notes:
1 Support projects and WSIP Closeout projects are not listed in the table above since these projects do not have specific Level of Service (LOS) goals.
5 Q1-FY2022-2023 (07/01/22 – 09/30/22)
3. PROGRAM COST SUMMARY
Table 3.1 p
rovides an overall program-level cost summary of th e WSIP Regional Program. It shows the Expenditures to Date; the 2005 Ba seline, 2022 A pproved, Current Approved an d Q1/FY22 -23 Forecasted Budgets; and the Cost Variance between the Current Approved and Forecasted Budgets.
The total Current Approved WSIP Budget (including Regional and Local Programs, Local Water Supply Projects, and Fi nancing Costs) and Current Forecasted Cost at completion are $4,787.8 million. The Current Approved WSIP Budget and Forecasted Cos t at completi on for only the Regional Program (including c onstruction contingency) are $3,803.1 million. The Current Approved Budg et and final expenditures for the Local Improvement Projects are each $331.9 million.
Table 3.1 Program Cost Summary
Cost Categories
Expenditures
To Date
($ Million)
2005
Baseline
Budget
($ Million)
2022
Approved
Budget
($ Million)
Current
Approved
Budget (7)
($ Million)
Q1/FY22-23
Forecasted
Costs
($ Million)
Cost
Variance
($ Million)
(A) (B) (C) (D) (E) (F = D - E)
Regional Improvement
Projects $3,456.9 $3,181.4 $3,513.9 $3,513.9 $3,510.5 $3.4 Construction Costs (1) $2,456.1 $2,322.3 $2,495.1 $2,495.1 $2,493.8 $1.4 Program Delivery Costs (2) $971.5 $758.0 $984.3 $984.3 $984.3 - Other Costs (3) $29.4 $101.0 $34.5 $34.5 $32.5 $2.0
Support Projects (4) $237.9 $32.8 $262.0 $262.0 $259.4 $2.6 Construction Contingency for
Regional & Support Projects (5) $19.0 $193.2 $27.2 $27.1 $33.1 ($6.0)
REGIONAL PROGRAM WITH
CONTINGENCY $3,713.9 $3,407.4 $3,803.1 $3,803.1 $3,803.1 - Local Improvement Projects $331.9 $383.2 $331.9 $331.9 $331.9 - Local Water Supply Projects (6)(8) $221.1 - $280.9 $280.9 $280.9 - Finance (9,10,11) $372.0 $552.0 $372.0 $372.0 $372.0 -
PROGRAM TOTAL $4,638.8 $4,342.6 $4,787.8 $4,787.8 $4,787.8 - Notes:
1. Construction Costs include the Construction Base Bid and owner-provided equipment/material for all regional and support projects. Those costs do not include any construction contingency. That contingency is reflected as a separate cost category.
2. Delivery Costs include project management, planning, environmental (CEQA, permitting, construction compliance), design, construction management, and engineering support during construction.
3. Other Costs include environmental mitigation, art enrichment, security improvements, and real estate expenses.
4. Support Projects include (1) System Security Upgrades, (2) Programmatic EIR, (3) Bioregional Habitat Restoration, (4) Vegetation Restoration of WSIP Construction Sites, (5) Long Term Mitigation Endowment, (6) Program Management, and (7) Watershed and Environmental Improvement Program. Please note that the cost reflected above for support projects only includes “Delivery” and “Other” costs, and “Construction” cost for these projects is included in “Construction Costs” under the Regional Improvement Projects.
5. Expenditures to Date for Construction Contingency for Regional and Support projects correspond to the Total Approved Change Orders on those projects. For projects with ongoing or completed construction, the 2022 Approved Budget for construction contingency includes all change orders and trends as identified at the time of the March 2022 Revised WSIP, or projects in pre-construction, the 2022 Approved Budget for construction contingency includes 10% of the estimated construction base bid
6. Local Water Supply Projects managed as part of the Water Enterprise Capital Improvement Program (CIP) are (1) Lake Merced Water Level Restoration, (2) San Francisco Groundwater Supply, (3) San Francisco Westside Recycled Water, (4) Harding Park Recycled Water, and (5) San Francisco Eastside Recycled Water.
7. The budget approved as part of the March 2022 Revised WSIP, plus any additional budget changes approved by the Commission as part of additional contingencies on construction contracts.
8. The WSIP Local Water Supply projects underwent a September 2013 re-baseline. Only the original WSIP portion of the re- baselined costs is reported here. The remaining budget is funded under the Water Enterprise CIP and is managed outside the purview of the WSIP.
6 Q1-FY2022-2023 (07/01/22 – 09/30/22)
9. The original $522M estimate of financing cost was based on a memorandum to the Commission dated November 23, 2005.
10. The financing cost budget of $372M that was included in the March 2022 Revised WSIP includes all financing costs appropriated to date.
11. The actual financing cost is assumed to match the budgeted financing cost. Final reconciliation of all associated financing costs will occur upon WSIP completion.
Table 3.2 provides the current r emaining construction contingency. For each region, it shows the Forecasted Construction Contingency as of Q4/FY21-22; the Total Approved Change Orders pr ior to the reporting quarter; Change Orders Approved during the reporting quarter; Total Approved Change Orders through the re porting quarter ; Project Savings Moved to Contingency/ Funds Moved out of Contingency during the Reporting Quarter; the Q1/FY22-23 Forecasted Construction Contingency; and the Forecasted Remaining Contingency as of the end of th e reporting quarter. As of September 30, 2022, the Forecasted Construction Contingency is $33 .18 million, and the Remaining Contingency is $11.98 million.
The total costs of Change Orders approved in Q1/FY22-23 are shown in Table 3.2.
Table 3.2 Current Remaining Construction Contingency
Region
Q4/FY21-22
Forecasted
Construction
Contingency (1)
Total Approved
Change Orders as
of Q4/FY21-22(2,3)
Change Orders
Approved in
Q1/FY22-23(2)
Total Approved
Change Orders as
of Q1/FY22-23
Project
Savings or
Director’s
Reserves (+)
Moved to
Contingency/
Funds (--)
Moved out of
Contingency
during
Q1/FY22-23 (4)
Q1/FY22-23
Forecasted
Construction
Contingency
Q1/FY22-23
Forecasted
Remaining
Contingency
($ Million) ($ Million) ($ Million) ($ Million) ($ Million) ($ Million) ($ Million) (A) (B) (C) (D = B+C) (E) (F = A + E) (G = F - D)
San Joaquin Region - - - - - - -
Sunol Valley Region $1.95 $0.20 $0.39 $0.60 $6.00 $7.95 $7.36 Bay Division Region - - - - - - -
Peninsula Region - - - - - - -
San Francisco
Regional Region $25.23 $20.26 $0.34 $20.60 - $25.23 $4.63 Support Projects - - - - - - -
Regional Total $27.18 $20.46 $0.74 $21.20 $6.00 $33.18 $11.98 Notes:
1. Construction Contingency approved as part of the March 2022 Revised WSIP, plus any regional projects’ savings moved to contingency.
2. Approved Change Orders are changes that have received all required approvals, including that of the City Controller.
3. This table only reports change orders for the active construction contracts as of this reporting cycle.
4. Values only reflect savings realized after the Commission adopted the March 2022 Revised WSIP.
Table 3.3 provides the forecasted remaining construction contingency. For each region as of Q1/FY22- 23, it sh ows the Remaining Construction Contingency, Pending Change Orders, Potential Change Orders, Trends, and Forecasted Remaining Construction Contingency. As of September 30, 2022, the Total Forecasted Remaining Construction Co ntingency for the Regional WSIP is $6.11 million.
This amount does not include funds that are currently held in Director’s Reserve. 7 Q1-FY2022-2023 (07/01/22 – 09/30/22)
Table 3.3 Forecasted Remaining Construction Contingency Region
Q1/FY22-23
Remaining
Construction
Contingency
(1)
Pending
Change
Orders as of
Q1/FY22-23
(2)
Potential
Change
Orders as of
Q1/FY22-23
(3)
Trends
as of
Q1/FY22-23
(4)
Q1/FY22-23
Forecasted
Remaining
Construction
Contingency
($ Million) ($ Million) ($ Million) ($ Million) ($ Million) (A) (B) (C) D (E =A-B-C-D)
San Joaquin Region - - - - -
Sunol Valley Region $7.36 - $2.55 $4.81 -
Bay Division Region - - - -
Peninsula Region - - - -
San Francisco Regional Region $4.63 ($0.91) ($0.58) - $6.11 Support Projects - - - -
Regional Total $11.98 ($0.91) $1.97 $4.81 $6.11
Notes:
1. Same as Column G in Table 3.2.
2. Pending Change Orders are changes that have been negotiated and approved by the SFPUC but have to be approved by the City Controller.
3. Potential Change Orders are changes that have been requested and entered into the construction contract management database but are still being negotiated.
4. Trends are any expected impact that the CM team believes may become a change order but are yet to be entered into the construction contract management database as a Potential Change Order.
The Program M anagement pr oject includes programmatic activities that span m ultiple re gions and benefit several WSIP projects (Table 3.4). The project provides funding for the following functions and resources: SFPUC Staff assigned to the management of the ove rall program; consultants supporting SFPUC staff at the program level (program, p roject and pre -construction management consu ltant, program construction m anagement consultant, program control consultant); l abor rela tions, including management of the project labor agreement; communication and public outreach; programmatic legal support; real estate acquisitions; program controls , including the tracking and r eporting of all WSIP efforts; and program -level construction management activities associated with qualit y assurance, risk management, the S upplier Quality Surveillance (S QS) Program, operations assistance, safety, and training.
The activit ies under t he P rogram Management proj ect are organized into five ca tegories that are tracked and monitored on a monthly basis. These categories are Management Support, Project Labor Agreement, Planning and Project Developm ent, Program Control, and Program Construction Management.
The spending pattern for the p roject is very similar from month to m onth as the project primarily funds program-level positions occupied by SFPUC staff and consul tants. The Forecasted Total Prog ram Management Cost is $113.4 million, which is $3.9 million under the Current Approved Budget of $117.3 million. The cost variance is due to the transfer of the Director ’s Reserve to Alameda Creek Recapture Project construction contingency. The remaining balance in the Director's Reserve is $2.9M. 8 Q1-FY2022-2023 (07/01/22 – 09/30/22)
Table 3.4 Status of Program Management Project Cost Breakdown Category
Expenditures
To Date
($ Million)
2022
Approved
Budget
($ Million)
Current
Approved
Budget
($ Million)
Q1/FY22-23
Forecasted
Cost
($ Million)
Cost
Variance
($ Million)
(A) (B) (C) (D) (E = C-D)
Management Support $37.81 $46.47 $46.47 $42.53 $3.94
Project Labor Agreement $3.74 $3.84 $3.84 $3.84 -
Planning and Project
Development $17.97 $18.33 $18.33 $18.33 -
Program Controls $20.81 $20.86 $20.86 $20.86 -
Program Construction
Management $27.79 $27.80 $27.80 $27.80 -
Program Management
Total $108.13 $117.30 $117.30 $113.36 $3.94
9 Q1-FY2022-2023 (07/01/22 – 09/30/22)
4. PROGRAM SCHEDULE SUMMARY
Figure 4.1 and Table
4.1 compare the 2005 Baseline, 2022 Approved, Cur rent Approved, and Q1/FY22-23 Forecasted Schedules for the WSIP Regional Program. Refer to the “Cost and Schedule Status” notes in Section 5 for the criteria associated with the three color-coded Forecast Status levels in Figure 4.1 – Meet Requirements, Need Attention, and Exceed Limits. The Current Approved and the Forecasted Schedule completion for the Regional WSIP (Local WSIP was completed in June 2020) are each February 2027. Refer to Appendix D for a graphical presentation of the WSIP Approved Project- Level Schedule.
10/1/2022
Data Date: 10/01/22
FY15-16
7/1/2002 7/1/2009 6/30/20237/1/2016
2005 Baseline
Schedule
(Mar-03 – Jun-14)
2022 Approved
Schedule
(Mar-03 – Feb-27)
Q1/FY22-23
Forecasted
Schedule
(Mar-03 – Feb-27)
FY01-02 FY08-09 FY22-23 FY29-30
Current Approved
Schedule
(Mar-03 – Feb-27)
7/1/2030
Table 4.1 2022 Approved vs. Q1/FY22-23 Forecasted Schedule Dates Category
2005
Baseline
Start
2022
Approved
Start
Current*
Approved
Start
Actual
Start
2005
Baseline
Finish
2022
Approved
Finish
Current*
Approved
Finish
Q1/FY22-23
Forecasted
Finish
Schedule
Variance
(Months)
Regional
Program 03/01/03 03/31/03 03/31/03 03/01/03 06/30/14 05/05/23 02/01/27 02/01/27 - Local**
Program 03/01/03 03/31/03 03/31/03 03/01/03 06/28/13 7/31/18 06/03/20 06/03/20A Completed Overall
WSIP 03/01/03 03/01/03 03/01/03 03/01/03 06/30/14 05/05/23 02/01/27 02/01/27 - *
**
The budget and schedule approved as part of the March 2022 WSIP, plus any additional budget and schedule changes approved by the Commission as part of additional contingencies on construction contracts.
Excluding
Local Water Supply Projects
Figure 4.1 Program Schedule Summary
10 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22)
5. PROJECT PERFORMANCE SUMMARY* All costs are shown in $1,000s Project Name Active
Phase
(a)
CIP
Approved
Budget
(b)
Current
Approved
Budget
(c)
Current
Forecast
Cost
(d)
Expenditures
to Date
(e)
Cost
Variance
(f=c-d)
% Cost
Changes
(g=f/c)
CIP
Completion
Date
(h)
Approved
Completion
Date
(i)
Forecast
Completion
Date
(j)
Schedule
Variance
(Days)
(k=i-j)
(**) (+) (++) (+++) (+++) (+) (++) (+++)
Sunol Valley Region
10015281
Alameda Creek
Recapture Project
CN $18,809 $43,967 $47,968 $23,079 ($4,001) (9%) 05/25/2012 06/18/2024 06/18/2024 0 10015492 WSIP
Closeout - Sunol
Valley
CN $5,990 $5,990 $4,983
$0 0% 06/30/2022 12/31/2022 (184)
San Francisco Regional Region
10015241
Regional
Groundwater
Storage and
Recovery
CN $39,233 $158,350 $158,350 $122,596 $0 0% 02/27/2014 02/01/2027 02/01/2027 0 Support Projects
10015337 Long
Term Mitigation
Endowment
N/A $12,000 $12,000 $0 $0 0% 10/01/2024 10/01/2024 0
* Does not include projects in closeout, completed, not initiated,on hold, deleted projects, and projects combined with other projects. ** Phase Status Legend
PL Planning DS Design
BA Bid & Award CN Construction
Footnotes:
(+) CIP Approved Budget and Project Completion Date: The budget and schedule approved as part of 10-year CIP for FY21-30.
(++) Current Approved Budget and Schedule: The budget and schedule approved as part of 10- year CIP for FY21-30, plus any additional budget and schedule changes approved by the Commission as part of construction contract award.
(+++) Negative number reflects cost overrun (or schedule delay) and positive number reflects cost underrun (or ahead of schedule). Projects with a forecasted cost overrun greater than 10%, or forecasted delay of greater than 6 months or 10%, will be highlighted in grey. 11 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22)
6. PROJECT STATUS REPORT
10015281 - Alameda Creek Recapture Project
Project Description: The planned facilities include the following components: four (4) identical vertical turbine pumps
mounted on floating barges located in existing Pond F2; four (4) flexible discharge pipelines extending from each pump to a new pipe manifold located on shore; a pipeline connection between the new pipe manifold and the existing Sunol Pipeline to discharge the recaptured water to the SFPUC system; throttling valves and a flow meter; electrical control building; power lines from the existing Hetch Hetchy Water & Power Calaveras Electrical Substation installed on new power poles; and general site improvements.
Program: Sunol Valley Region Project Status: Construction Environmental Status: Completed (EIR)
Project Cost:
Approved
Forecast
Actual
$ 43.97 M
$ 47.97 M
$ 23.08 M
Project Schedule:
Approved
Forecast
Sep-03
Sep-03
Jun-24
Jun-24
Project Percent Complete: 54.3%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 04/28/2020 A 12/18/2020 A 06/21/2021 A 02/29/2024 Progress and Status:
During the reporting period, design modifications were
completed for the water pipeline realignment around the Pond F2 due to erosion conditions. In addition, design was completed for relocation of the tie-in point between the effluent pipeline and the existing 36-inch diameter Sunol Pipeline due to corrosion at the original tie-in location.
Also, during the quarter, the design was initiated for
repairing the existing 36-inch diameter Sunol Pipeline due to the corrosion found on the pipe and the environmental
permit modification for the alternate access roads work was approved. On September 13, the SFPUC Commission
resolved to increase the construction contract cost
contingency by $2.6M and the construction contract duration contingency by 252 days for repairs to the Sunol Pipeline, to procure pipes for the realignment work, and to address cost and schedule delays related to the Department of Water
Resource (DWR) permit. The Sunol Pipeline repair work is estimated tol cost $1.6M and will be performed under the construction contract but funded from Water Enterprise
Capital Improvement Program budget. The remaining
approximately $1M will be funded from the project. The
contractor continued to report notices of material shortages, longer lead-time estimates, and cost increases related to COVID-19. Coordination with the quarry operator on erosion repairs continued.
Issues and Challenges:
The cost variance is due to the forecasted trends
related to the pipe realignment design changes and
delays, Sunol pipeline repairs, DWR permit delays,
barge, and pier changes. The construction contractor
started evaluating the cost and schedule impacts of the issues; actual costs will be reported in the future.
Inspection of the Vertical Pump
12 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) 10015492 - WSIP Closeout - Sunol Valley
Project Description: This project consists of
the following sub-projects: Alameda Siphon No, 4 Carrier Water System Modifications will make modifications of the current chemical injection system. Erosion Repair at Pond F3 East will repair the erosion and restore the drainage pipe on the east bank of Pond F3 East. SVWTP Basin Polymer Feed Facility is to build a polymer feed facility that will serve all five (5) Basins to allow this facility to better meet its LOS goals.
Miscellaneous Work at Alameda West Portal, Irvington Portal and San Antonio Back-Up Pipeline will install security doors at Alameda West Portal (AWP) and Irvington Portal (IVP), couplings between the valve stem and actuator, refurbishment of uninterruptible power supply (UPS) and install enclosures for the UPS at AWP and IVP, and other related appurtenances. New Irvington Tunnel Water Quality Equipment Relocation is to relocate the water quality monitoring equipment to Building B10 for Irvington Portal 1 (IP1) and install a pump from Irvington Tunnel 2 (IT2) to Irvington Tunnel 1 (IT1). San Antonio Backup Pipeline Carrier Water System Modifications is to modify the carrier water and chemical injection system to ensure the chemicals will be injected properly. Fish Passage Facilities at the Alameda Creek Diversion Dam is to modify the VSAT power supply system, replace the main photovoltaic battery bank and realign several valves and actuator drive stems.
Program: Sunol Valley Region Project Status: Construction Environmental Status: Completed Project Cost:
Approved
Forecast
Actual
$ 5.99 M
$ 5.99 M
$ 4.98 M
Project Schedule:
Approved
Forecast
Jul-16
Jul-16
Jun-22
Dec-22
Project Percent Complete: 88.8%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast
Progress and Status:
Subprojects (1) JOC-60-14, (2) JOC-59-20,
(4) JOC-54-02,
(5) JOC 60-20, (6) JOC-60-23, and (7) SVWTP Polymer
Feed Facility were all completed previously. The final sub- project, Alameda Creek Diversion Dam Power and
Communication Facilities is being accomplished under three job order contracts (JOCs). Replacement of the main
photovoltaic battery bank under JOC 77-09 was completed last quarter, and the modification of the satellite
communication system’s power supply system under JOC
70-14 was completed this quarter. Realignment of several valves and actuator drive stems under JOC 70-15 were also completed last quarter. Remaining work under JOC 70-15, including sluice way channel repair and final debris removal has not yet occurred due to the presence of a protected species at the site, but is anticipated to be completed in the next quarter, allowing closeout of this project.
Issues and Challenges:
As reported last quarter, the variance of six (6) months in the project schedule was to complete JOC 70-15,
specifically modification of the satellite communication system's power supply system and additional time for the creekbed to dry in order to complete the sluice way repair and debris removal.
ACDD VSAT Enclosure complete with new solar system
13 Various Various Various Various
WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) 10015241 - Regional Groundwater Storage and Recovery
Project Description: The current scope was
planned to be constructed in two (2) phases. Phase 1 included construction of 13 wells to produce 6.2 mgd of dry year supply over 7.5 years. Operating the wells during drought will provide data and insights into how much water can be reasonably expected to be produced, and if additional well stations are needed to reach the desired drought period pumping capacity. Phase 2 included construction of two (2) installed test wells, completion of the South San Francisco (SSF) Main well, pipeline, and other work. The test wells which would not be converted to production wells at this time will allow for determination as to whether the identified sites could be viable production wells, and will provide information to water quality and pumping capacities that can be used for future planning. Phase 2 has been separated into two contracts due to the long lead-time required for easements and permits for work at the SSF Main Well site. Phase 2A includes installation of cathodic protection, well rehabilitation, and other mechanical work. Phase 2B consists of work at the SSF Main Well and pipeline installation to connect the well to Cal Water’s treatment facility.
Program: San Francisco Regional
Region Project Status: Construction Environmental Status: Active (Various)
Project Cost:
Approved
Forecast
Actual
$ 158.35 M
$ 158.35 M
$ 122.6 M
Project Schedule:
Approved
Forecast
Jun-03
Jun-03
Feb-27
Feb-27
Project Percent Complete: 83.6%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast
A 09/07/2009 A 09/07/2011 A 01/30/2012 A 09/05/2012 A
B 08/07/2014 A 09/22/2014 A 04/06/2015 A 09/02/2022 A
C 11/10/2020 A 09/27/2021 A 06/23/2022 A 02/20/2024
D 06/30/2023 08/01/2023 02/01/2024 01/31/2026
Progress and Status:
Project includes multiple construction contracts:
(A)
WD-2600 Test well drilling; (B) WD-2668 Well station (13 wells) Phase 1; (C) WD-2878A RGSR Phase 2A; (D) RGSR
Phase 2B. For Phase 1 (Contract B) WD-2668 Well station (13 wells), final completion for construction was achieved on September 2. It is anticipated that the contract will be closed out in the next quarter. On September 13, the SFPUC
Commission approved Amendment No. 6 to the professional services design contract, extending it by four years and two months to allow consultant services for engineering support during construction to continue to the forecast completion of this project in February 2027. For Phase 2A (Contract C) WD-2878A RGSR Phase 2A, the groundwater pumps at
Millbrae Yard and Benjamin Franklin Well Stations have
been pulled for inspection, rehabilitation, and installation of cathodic protection systems. For Phase 2B (Contract D), the 100% design and procurement of easements and permits
continued to progress during the quarter. On September 20, PG&E issued the preliminary design and the proposed
service agreement for providing power to the SSF Main
Well.
Issues and Challenges:
None at this time.
Ben Franklin Well groundwater pump pulled for inspection 14 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22)
7. On-Going Construction
Actual
% CompleteCostSchedule
(Cal. Days)
NTP
Date
Approved
Construction
Final
Completion*
Variance
(Approved - BudgetSchedule
Construction Contract Q1/FY22-23
Forecasted
Cost++
Q1/FY22-23
Forecasted
Construction
Final
Completion**
Approved
Contract
Cost +
Sunol Valley Region
$ 22,653,40902/29/2406/21/2110015281 - Alameda Creek Recapture Project 22.0%(437) ($2,546,138)12/19/22 $ 20,107,271
San Francisco Regional Region
$ 6,529,71802/20/2406/23/2210015241 - Regional GW Storage and Recovery (Contract C) 4.7%- $ 320,28202/20/24 $ 6,850,000 $ 26,957,271 $ 29,183,128
Program Total
for On-Going
Construction
Q1/FY22-23
Forecasted
Approved
Contract Cost
Variance
($2,225,856) (8.3%)
Cost Percent
Note:
* Approved Construction Final Completion Date includes approved change orders. ** The Forecasted Construction Final Completion Date includes all approved, pending, and potential change orders and trends.
+ Approved Contract Cost includes awarded contract amount and approved change orders.
++ The Forecasted Cost includes awarded contract amount and all approved, pending, and potential change orders.
15 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22)
8. PROJECTS IN CLOSEOUT
Project Title 2005
Baseline
Construction
Phase
Completion
2022
Approved
Construction
Phase
Completion
2005
Approved
Project
Completion
Current
Approved
Construction
Phase
Completion
Actual
Construction
Phase
Completion
2022
Approved
Project
Completion
Current
Approved
Project
Completion
Forecast
Project
Completion
2005
Construction
Budget
2022
Approved
Construction
Phase
Budget
Current
Approved
Construction
Phase
Budget
Construction
Phase
Expenditures
To Dates
Support Projects
10015335 -
Bioregional
Habitat
Restoration
5/31/2018 5/31/2018 5/31/2018 10/1/2024 10/1/2024 10/1/2024 50,723,009 $50,723,009 $50,686,848 16 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22)
9. COMPLETED PROJECTS
Project Title
2005
Baseline
Project
Completion
2022
Approved
Project
Completion
Current
Approved
Project
Completion
Actual
Project
Completion
2005 Baseline
Project
Budget
2022
Approved
Project
Budget
Current
Approved
Project
Budget
Project
Expenditures
To Date
San Joaquin Region
10015301 - Lawrence
Livermore Water Quality
Improvement
11/07/2011 07/31/2013 07/31/2013 07/31/2013 $4,235,258 $4,198,247 $4,198,247 $4,198,247 10015315 - San Joaquin
Pipeline System
03/25/2014 03/31/2016 03/31/2016 03/31/2016 $352,732,000 $203,178,014 $203,178,014 $203,178,014 10015316 - Rehabilitation of
Existing San Joaquin Pipelines
06/30/2014 10/31/2014 10/31/2014 10/31/2014 $80,000,000 $21,153,622 $21,153,622 $21,153,622 10015330 - Tesla Treatment
Facility
07/01/2011 01/30/2015 01/30/2015 01/30/2015 $101,643,001 $113,211,607 $113,211,607 $113,211,607 10015487 - WSIP Closeout -
San Joaquin
03/31/2021 03/31/2021 03/31/2021 $0 $3,376,376 $3,376,376 $2,011,197 Sunol Valley Region
10015286 - Standby Power
Facilities - Various Locations
12/06/2010 12/22/2010 12/22/2010 12/22/2010 $9,949,735 $12,950,566 $12,950,566 $12,950,566 10015290 - New Irvington
Tunnel
09/17/2013 03/31/2018 03/31/2018 03/31/2018 $214,650,004 $340,406,358 $340,406,358 $339,901,806 10015291 - Alameda Siphon #4 04/14/2011 06/28/2013 06/28/2013 06/28/2013 $78,577,000 $64,950,507 $64,950,507 $64,950,507 10015312 - Pipeline Repair &
Readiness Improvements
03/30/2007 04/16/2009 04/16/2009 04/16/2009 $5,591,770 $5,195,381 $5,195,381 $5,195,381 10015317 - Calaveras Dam
Replacement
05/25/2012 03/31/2022 03/31/2022 03/31/2022 $256,511,407 $794,066,323 $794,066,323 $793,277,120 10015318 - Calaveras
Reservoir Upgrades
02/17/2006 07/28/2006 07/28/2006 07/28/2006 $1,740,055 $1,690,552 $1,690,552 $1,690,552 10015319 - San Antonio
Backup Pipeline
06/29/2012 06/30/2016 06/30/2016 06/30/2016 $7,677,000 $53,594,683 $53,594,683 $53,594,683 10015325 - SVWTP Expansion
& Treated Water Reservoir
07/09/2013 10/31/2014 10/31/2014 10/31/2014 $133,108,002 $129,593,674 $129,593,674 $129,593,674 10015332 - San Antonio Pump
Station Upgrade
12/12/2011 06/29/2012 06/29/2012 06/29/2012 $41,854,000 $12,894,592 $12,894,592 $12,894,592 Bay Division Region
10015282 - BDPL Nos. 3 & 4
Crossover/Isolation Valves
09/30/2008 07/31/2009 07/31/2009 07/31/2009 $27,600,158 $27,039,149 $27,039,149 $27,037,926 10015283 - Seismic Upgrade of
BDPL Nos. 3 & 4
10/15/2012 07/30/2018 07/30/2018 07/30/2018 $66,792,849 $72,194,219 $72,194,219 $70,530,532 10015299 - SCADA System -
Phase II
02/24/2012 05/28/2013 05/28/2013 05/28/2013 $36,098,999 $9,470,922 $9,470,922 $9,470,923 10015308 - BDPL Reliability
Upgrade / Tunnel
01/31/2014 08/30/2016 08/30/2016 08/30/2016 $572,022,634 $272,364,089 $272,364,089 $271,823,525 10015309 - BDPL Reliability
Upgrade - Pipeline
03/31/2016 03/31/2016 03/31/2016 $0 $216,722,172 $216,722,172 $216,722,172 10015310 - BDPL Reliability
Upgrade - Relocation of BDPL
Nos. 1 & 2
05/28/2010 05/28/2010 05/28/2010 $0 $3,046,981 $3,046,981 $3,046,981 10015324 - BDPL Nos. 3 & 4
Crossovers
04/24/2013 06/30/2014 06/30/2014 06/30/2014 $36,616,911 $29,910,449 $29,910,449 $29,910,449 10015338 - SFPUC/EBMUD
Intertie
02/07/2007 03/20/2014 03/20/2014 03/20/2014 $8,598,851 $9,167,306 $9,167,306 $9,167,306 10015341 - BDPL No. 4
Condition Assessment PCCP
Sections
05/01/2008 02/06/2009 02/06/2009 02/06/2009 $2,000,000 $1,937,599 $1,937,599 $1,937,599 10015484 - WSIP Closeout -
Bay Division
03/31/2021 03/31/2021 03/31/2021 $0 $3,597,500 $3,597,500 $3,322,156 Peninsula Region
10015285 - Lower Crystal
Springs Dam Improvements
08/16/2011 12/28/2012 12/28/2012 12/28/2012 $27,752,222 $34,859,040 $34,859,040 $34,859,040 10015287 - New Crystal
Springs Bypass Tunnel
10/28/2010 08/17/2012 08/17/2012 08/17/2012 $83,222,790 $81,466,732 $81,466,732 $81,466,732 10015288 - Adit Leak Repair -
Crystal Springs/Calaveras
07/03/2008 07/31/2008 07/31/2008 07/31/2008 $3,748,452 $2,787,322 $2,787,322 $2,787,322 17 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) Project Title
2005
Baseline
Project
Completion
2022
Approved
Project
Completion
Current
Approved
Project
Completion
Actual
Project
Completion
2005 Baseline
Project
Budget
2022
Approved
Project
Budget
Current
Approved
Project
Budget
Project
Expenditures
To Date
10015293 - Pulgas Balancing -
Inlet/Outlet Work
05/11/2006 05/11/2006 05/11/2006 05/11/2006 $1,667,532 $1,765,938 $1,765,938 $1,765,938 10015294 - Pulgas Balancing -
Discharge Channel
Modifications
08/05/2013 07/30/2010 07/30/2010 07/30/2010 $8,111,422 $2,910,007 $2,910,007 $2,910,007 10015295 - Pulgas Balancing -
Structural Rehabilitation and
Roof Replacement
01/29/2013 12/28/2012 12/28/2012 12/28/2012 $36,712,846 $20,238,716 $20,238,716 $20,238,716 10015297 - Pulgas Balancing -
Modifications of the Existing
Dechloramination Facility
03/20/2013 03/20/2013 03/20/2013 $0 $5,390,031 $5,390,031 $5,390,031 10015302 - Cross Connection
Controls
05/15/2009 02/27/2009 02/27/2009 02/27/2009 $6,111,779 $3,948,943 $3,948,943 $3,948,943 10015303 - HTWTP Short-Term
Improvements (Demo Filters)
07/03/2006 11/14/2006 11/14/2006 11/14/2006 $4,381,375 $3,067,903 $3,067,903 $3,067,903 10015305 - HTWTP Short-Term
Improvements - Coagulation &
Flocculation/ Remaining Filters
09/08/2010 07/28/2010 07/28/2010 07/28/2010 $9,741,617 $18,604,937 $18,604,937 $18,604,937 10015306 - HTWTP Long-Term
Improvements
04/08/2014 12/30/2016 12/30/2016 12/30/2016 $167,570,000 $274,081,969 $274,081,969 $273,833,162 10015307 - Peninsula Pipelines
Seismic Upgrade
07/06/2016 07/06/2016 07/06/2016 $0 $38,825,346 $38,825,346 $38,773,912 10015311 - Capuchino Valve
Lot Improvements
07/24/2009 08/19/2008 08/19/2008 08/19/2008 $3,573,782 $2,803,153 $2,803,153 $2,803,153 10015313 - Crystal Springs/San
Andreas Transmission Upgrade
04/01/2014 06/30/2015 06/30/2015 06/30/2015 $148,582,655 $190,309,453 $190,309,453 $189,816,066 10015322 - Crystal Springs
Pipeline No. 2 Replacement
04/27/2012 12/31/2014 12/31/2014 12/31/2014 $93,926,000 $56,070,509 $56,070,509 $56,070,509 10015323 - San Andreas
Pipeline No. 3 Installation
06/09/2011 08/30/2012 08/30/2012 08/30/2012 $42,029,941 $27,495,558 $27,495,558 $27,495,558 10015339 - Baden and San
Pedro Valve Lots Improvements
10/12/2011 03/29/2013 03/29/2013 03/29/2013 $47,319,999 $24,990,803 $24,990,803 $24,990,803 10015486 - WSIP Closeout -
Peninsula
12/30/2021 12/30/2021 12/30/2021 $0 $13,579,680 $13,579,680 $13,479,266 San Francisco Regional Region
10015289 - Sunset Reservoir -
North Basin
05/06/2009 09/10/2010 09/10/2010 09/10/2010 $61,975,999 $64,270,725 $64,270,725 $64,270,725 10015314 - University Mound
Reservoir - North Basin
03/10/2011 03/29/2013 03/29/2013 03/29/2013 $102,882,610 $43,266,552 $43,266,552 $43,266,552 Support Projects
10015300 - System Security
Upgrades
04/19/2019 04/19/2019 04/19/2019 $0 $14,700,669 $14,700,669 $14,429,323 10015334 - Programmatic EIR 06/20/2007 06/30/2009 06/30/2009 06/30/2009 $9,271,001 $10,730,684 $10,730,684 $10,730,684 10015336 - Vegetation
Restoration of WSIP
Construction Sites
06/30/2016 06/30/2016 06/30/2016 $0 $2,111,546 $2,111,546 $2,099,755 10015342 - Watershed and
Environmental Improvement
Program
06/28/2013 06/30/2022 06/30/2022 06/30/2022 $20,000,000 $20,000,000 $20,000,000 $19,918,451 TOTAL $2,916,581,656 $3,364,187,104 $3,364,187,104 $3,357,788,630
18 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22)
APPENDICES
A. PROJECT DESCRIPTIONS
B. WSIP APPROVED PROJECT-LEVEL SCHEDULE
C. LIST OF ACRONYMS
19 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) This page is intentionally left blank
20 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) APPENDIX A. PROJECT DESCRIPTIONS
SAN JOAQUIN REGION
10015301 - Lawrence Livermore Water Quality Improvement (Completed) The project consists of:
• Ultraviolet (UV) disinfection, including two (2) 150-gallon-per-minute, parallel UV units and ancillary facilities. The units will be installed in the existing Thomas Shaft building. • Two (2) pumps that will pump water from the Coast Range Tunnel to the new disinfection system.
10015315 - San Joaquin Pipeline System (Completed)
This project consists of:
• Pipeline crossover facilities at Emery Road (including 10 valves) and Pelican Road (including 12 valves).
• Installation of a portion of new pipeline, the Western Segment, from the San Joaquin River to the Tesla Portal. The pipeline will be 78-inches in di ameter, approximately 10.3 miles in length and will include tunneled crossings of several highways, railroads, and irrigation canals. The pipeline will cross over the top of the California Aqueduct.
• Installation of a portion of new pipeline, the Eastern Segment, from the Oakdale Portal to a new connection point approximately 6.7 miles downstream on SJPL No. 3. This segment will also be 78-inches in diameter.
• Installation of valve facilities on SJPL Nos. 3 and 4 along the Eastern Segment to provide fo r
operational needs to divide and isolate segments of these lines for maintenance and to regulate flow and control pressure in the system.
• Security-related site improvements at Oakdale Portal.
10015316 - Rehabilitation of Existing San Joaquin Pipelines (Completed) The project scope is to assure that existing San Joaquin Pipelines will meet Delivery Reliability LOS goals by establishing a program of routine maintenance, repair and replacement activities for long-term implementation and by addressing the highest priority rehabilitation measures identified during the timeframe of the WSIP:
• Rehabilitation of and security-related site improvements at the existing Roselle Crossover. • Establishment of a program of pipelines conditions assessment, including upgrading and renewal as required, of pipe coating and lining systems.
• Upgrade of the existing SJPL cathodic protection system. • Upgrade of the existing SJPL Supervisory Control and Data Acquisition (SCADA) system.
10015330 - Tesla Treatment Facility (Completed)
The project consists of:
• Isolation valves and piping to divert SJPL flow to the new treatment facility, large-diameter piping and valves located within the treatment facilities, and a single discharge pipeline to tie back into the existing SJPLs.
• A disinfection building housing 12 UV reactors, cleaning equipment, and ancillary equipment. • A chemical storage and feed building for sodium hypoc hlorite, hydrofluosilicic acid (i.e., fluoride), and carbon dioxide.
• Office, laboratory, and control facilities, emergency engine generators, and security-related site and access road improvements.
10015487- WSIP Closeout - San Joaquin (Completed)
• Supplemental Solar Panel Installations – The 10015315 San Joaquin Pipeline System, including the western segment, eastern segment and facilities, and crossover pipeline projects achieved final completion in 2013, 2014 and 2015, respectively. During the initial course of operations, it was noted 21 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) the solar panel arrays designed to provide power for the facility equipment were not sufficient to meet all modes of operational demands. This sub-project will provide additional solar panels to cover powe r shortfalls and allow the facility to better meet its water delivery reliability LOS goal. This sub- project consists of three (3) job order contracts at three (3) sites: Oakdale, Knight Ferry Throttling Station, and San Joaquin Junction No. 4. The scope of work as noted in the March 2016 Notice of Change includes:
o Minor site preparation and grading work
o Furnishing and installing new supplemental solar arrays mounted on concrete pads within security fence enclosures
o Connections and integration of the new solar panels into the existing power system and controls o Installation of batteries for solar power storage on-site o Minor site preparation and grading work
• Tesla Portal Facility Interior Floor Slab – The Tesla Portal Facility, a sub-project of the 10015330 Tesla Treatment Facility, was completed in January 2015. During construction, the concrete interio r
floor slab was deleted from the project construction documents to allow easier access to repai r corrosion of the existing pipelines discovered during construction beneath the new Tesla Portal Facility.
Due to drainage issues at the site, the Operations staff at the facility has now requested the interio r slab be incorporated into the structure with a small access opening for future maintenance and corrosion repairs of the existing buried pipelines. As noted in the March 2016 Notice of Change, this sub-project will be constructed through use of a job order contract including:
o A new interior concrete slab slope to drain to a new catch basin o A new catch basin with grating and sump
o A small sump pump and drain through the slab or existing concrete wall to a discharge point
SUNOL VALLEY REGION
10015281 - Alameda Creek Recapture Project
The planned facilities for this project are based on Alternative 4-1 from the Updated Alternatives Analysis Report (AAR) dated January 30, 2009, with some refinements described below. The planned facilities include the following components: four (4) identical vertical turbine pumps mounted on floating barges located in existing Pond F2 (including a moori ng system); four (4) flexible discharge pipelines extending from each pump to a new pipe manifold located on shore; approximately 100-feet of 36-inch pipeline connection between the new pipe manifold and the existing Sunol Pipeline to discharge the recaptured water to the SFPUC system; throttling valves and a flow meter; electrical control building; 1,600 feet of power lines from the existing Hetch Hetchy Water & Power Calaveras Electrical Substation installed on 10 new power poles; and general site improvements. In addition, the scope includes conveyance of the water to various existing storage sites within the Sunol Valley or the Sunol Valley Water Treatment Plant, as necessary.
10015286 - Standby Power Facilities - Various Locations (Completed) Standby power requirements are provided at six (6) sites in the East Bay and on the Peninsula. Each site is either provided with an emergency generator or the electrical receptacles to accommodate a portable emergency generator.
The facilities at the six (6) sites include:
• Alameda West Portal: standby power improvements include installing a permanent 20- kilowatt (kW) emergency generator in a sound-attenuated masonry wall enclosure. • San Antonio Reservoir and Dam: standby power improvements include providing electrical receptacles for a portable 37-kW emergency generator at two (2) locations. • Harry Tracy Water Treatment Plant (HTWTP): standby power improvements include removing the fou r
(4) existing, smaller emergency generators and prov iding two (2) permanently installed 2-megawatt (MW) emergency generators.
• Millbrae Yard: standby power improvements incl ude replacing the existing emergency generator with a permanently installed 300-kW unit to enable this facility to function as an emergency operations 22 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) center.
• San Pedro Valve Lot: standby power improvements include installing a permanent 20-kW emergency generator in a sound-attenuated masonry wall enclosure. • Capuchino Valve Lot: standby power improvements include providing an electrical receptacle for a portable 30-kW engine generator.
• The project will also provide the trailer mounted engine generator that will be stored at the Millbrae Yard.
10015290 - New Irvington Tunnel (Completed)
The NIT alignment will be located just to the south of the existing tunnel. It will be 18,660 feet long and have a horseshoe shape with excavated dimensions of approximately 13 feet by 14 feet. The final tunnel lining will be mortar-lined, welded steel pipe, resulting in a finished diameter of 8.5 feet. Extra thick steel liner segments will also be used at low cover areas near the portals and beneath Interstate 680, and where it intersects inactive fault zones or in locations of poor ground conditions.
The NIT project is currently in construction and approximately 99% complete. Major project elements are listed below.
• Conventional mining methods were used for excavation in a westward direction from the Alameda West Portal, in both an eastward and westward direction from an intermediate shaft located nea r
Vargas Road, just off Interstate 680, and in an eastward direction from Irvington Portal. Tunneling was completed by multiple road header tunneling machines, and limited, controlled detonation in areas o f
hard rock. Spoils disposal was taken to fill sites just north of the San Antonio Pump Station (SAPS) near the intersection of Calaveras Road and Interstate 680. The completed spoils fills will create a visual barrier to new quarry operation located near Calaveras Road. Potentially contaminated spoils were screened, separated, and if found to contain contaminants, hauled to a permitted landfill. • At the Irvington Portal, tunnel connections were made to Bay Division Pipeline (BDPL) Nos. 1, 2, and 5 and to BDPL Nos. 3 and 4. Control valves were directly buried with instrumentation and electrical gear in a small control building. At the Alameda West Portal, the tunnel was connected to the discharge of the new mixing manifold to be constructed as part of the Alameda Siphons # 4 Project and to the existing overflow shaft. The project includes a new isolation valve between the mixing manifold and the portal.
•
A new access bridge was constructed across Alameda Creek to accommodate temporary construction traffic and on-going SFPUC Alameda West Portal operations. • A Groundwater Management Program was developed that includes two (2) years of pre- construction monitoring of wells, springs, creeks, ponds, and wetlands; environmental habitat construction mitigation measures; and two (2) years of monitoring after construction to minimize the impact to the local groundwater.
• At both the existing Irvington and Alameda West Portal facilities, other security-related site improvements were constructed, including undergr ounding of portal structures and new card access controlled gates and security fences.
• In the March 2014 Notice of Change, simplifications were made to the design of the new security structure for the existing Alameda West Portal. The design changes included a more secure structure with a smaller footprint and removal of pipe manifolds that will no longer be in service.
10015291 - Alameda Siphon #4 (Completed)
The Alameda Siphon #4 Project extends approximately 3,000 feet from the Alameda East Portal across both the Calaveras Fault and Alameda Creek to the Alameda West Portal.
The project primarily consists of:
• A 66-inch-diameter welded steel pipeline with 310 feet of special trench design and thicker- walled pipe in the fault rupture zone, and a tunneled crossing of Alameda Creek. • A 96-inch-diameter “blending structure” consisting of a pipe and valve manifold near the Alameda West Portal that will blend SVWTP and Hetch Hetchy water so that the existing and new Irvington Tunnels will receive a uniform quality of water.
23 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) • New isolation/throttling valves on Alameda Siphons No. 3 and 4 and new isolation valves on Alameda Siphons No. 1 and 2. The valves will be installed upstream of the blending structure. • Ventilation improvements at Alameda East Portal for the Coast Range Tunnel required fo r
construction access.
• New chemical injection facilities on Alameda Siphon No. 4. • Relocation and extension of the existing overflow pipe from the Alameda East Portal about 500 feet to an existing quarry, and site fencing at Alameda East Portal. The overflow to the existing quarry includes a grouted rock riprap channel down the side of the quarry for erosion protection. • Road improvements at the intersection with Calaveras Road for construction access.
10015312 - Pipeline Repair & Readiness Improvements (Completed) This project is 100% complete and has been closed out. The project was separated into the three (3) following implementation phases:
• Phase A: Procurement of varied lengths and sizes of welded steel pipe and fittings for stockpiling at new storage facilities at seven (7) locations along the transmission system, west of the Coast Range Tunnel.
• Phase B: Procurement and installation of a pipe rolling machine at the Sunol Yard. The rolling machine, which has the capability to roll pipe sections up to 9 feet in diameter, will be housed in a new building with an emergency power supply.
• Phase C: Development of a pipeline repair prioritization plan, on-call emergency repair procedures and contracts, and mutual assistance agreements.
10015317 - Calaveras Dam Replacement (Completed)
Project elements primarily include:
• Constructing a new 210-foot-high earth and rock fill dam designed to accommodate a maximum credible earthquake on the Calaveras Fault. The dam will be constructed immediately downstream o f
the existing dam and will have a crest length of 1,210 feet, a base thickness of 1,180 feet, and a crest thickness of 80 feet. The total volume of the dam will be approximately 2.8 million cubic yards. • The materials for construction will primarily origi nate from onsite sources, while surplus excavated material will be placed at disposal sites around the rim of the Calaveras Reservoir, including two (2) in-water disposal sites and several upland disposal sites. • The existing spillway will be removed, and a new spillway and stilling basin will be constructed. The overflow weir of the new spillway will be 307 feet long. The spillway will vary from 60 to 80 feet wide and will be 1,100 feet long. The stilling basin below the spillway will be 80 feet wide and 155 feet long. • A new intake tower and shaft will be constructed. The drain line and three (3) adits from the existing facility will be connected to the new shaft. The existing outlet conduit from the tower will be extended 1,250 feet downstream (beneath the replacement dam) and will be equipped with a high capacity fixed-cone discharge valve (relocated from the existing facility) to accommodate water releases from the reservoir. Fish screens will be added to the existing adits of the intake tower. • The existing dam will largely remain in place. The downstream face will, however, be partially removed and re-graded and a channel will be excavated through the dam to form the approach to the new spillway.
• A new 525-foot long fish ladder and flow bifurcation systems at ACDD will be used in conjunction with new low-flow capacity valves to be added at the base of the replacement Calaveras Dam to provide flows downstream of these facilities to support native aquatic resources and future populations o f
steelhead trout that are being restored to the Alameda Creek Watershed. • The fish ladder and a total of four (4) new fish protection screens will be added on the right abutment (looking downstream) of the ACDD. In addition, conveyance pipes will be installed to allow water from Alameda Creek to be delivered to the Calaveras Reservoir via the ACDT. • Landslide A removal beneath the northern half of the left abutment slope located on the left side of the valley (when looking downstream) as well as other associated changes as previously noted in the March 2013 Notice of Change.
24 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) • Landslide B removal within the lower left abutment slope as well as other associated changes as previously noted in the March 2014 Notice of Change.
•
Additional slope reinforcement in Borrow Area B and import of offsite rockfill as noted in the March 2016 Notice of Change.
• Repairs to the landslide portion of Calaveras Road and restoration of the West Haul Road as noted in the scope refinements listed below for this March 2018 Notice of Change. • For the ACDD fish ladder, to address the potential landslide hazard and further protect the fish passage structure, as noted in the scope refinements listed below for this March 2018 Notice o f
Change, an extension to the contract landslide stabilization wall and an additional reinforced concrete panel wall with tie-backs to reinforce a section of the soil nail wall.
10015318 - Calaveras Reservoir Upgrades (Completed)
The project consists of installing a hypolimnetic oxygenation system and associated cryogenic (oxygen generation) equipment near the dam. The addition of o xygen into the reservoir will limit the negative effects of algal blooms and may promote a healthier fish habitat. The system will continue to be usable following completion of the replacement Calaveras Dam. The project primarily consists of the new cryogenic equipment, two (2) diffuser systems in the reservoir, and miscellaneous site work.
10015319 - San Antonio Backup Pipeline (Completed)
The SABPL consists of 6,600 feet of 66-inch-diameter steel pipe and extends from the Alameda Siphons at the SAPS to Sunol quarry, SMP-24, near the intersection of Calaveras Road and San Antonio Creek. There are three (3) tie-in facilities with air gap provisions from the SABPL: one connecting to Alameda Siphon No. 3, a second to the SAPL near SAPS, and a third to the SAPL on the west side of Calaveras Road before the SAPL alignment turns and heads west to quarry SMP-24. The alignment of the SABPL parallels that of the existing SAPL, terminating with a control valve and concrete energy dissipation structure to quarry SM P-24. The project includes new chemical storage, feed and water quality monitoring facilities for de-chlorination and pH adjustment of any discharges through the SABPL, the existing SAPL, and the Alameda Ea st Portal overflow pipe. Water discharged into the SMP-24 quarry pond will be recovered with two submersible pumps and a short section o f
24-inch diameter steel pipe which will connect to the existing SAPL to convey water to San Antonio Reservoir. Power to the water recovery pumps w ill be supplied from the nearby Calaveras Substation, which is owned and operated by Hetch Hetchy Water & Power. Construction of a slurry wall is included around the quarry pond to minimize groundwater intrusion and to ensure slope stability.
10015325 - SVWTP Expansion & Treated Water Reservoir (Completed) The project primarily consists of:
• The expansion improvements, which increase the sustainable capacity to 160 mgd, include the addition of a new flocculation/sedimentation basin and the retrofit of six (6) of the twelve (12) existing filters. Design of improvements to the remaining six (6) filters was performed under the project, and was included as an optional bid item in the construction contract. As a result, upgrades to all 12 filters were able to be performed under the construction contract, providing an additional factor of safety fo r
reliable and sustainable production of 160 mgd required to meet the LOS goals established for the system.
• A single 17.5-million-gallon (mg) circular TWR which was constructed along with a new 3.5-MG rectangular chlorine contact tank on the northern portion of the existing plant site. Roughly 400,000 cubic yards of excavated material was hauled to a disposal site immediately east of the plant fo r
disposal.
• New chemical storage and feed facilities for disinfection are constructed including sodium hypochlorite and ammonia. New fluoride facilities were also added. • Construction of approximately 2,700 feet of 78-inch-diameter pipe that connects the new TWR to the existing plant discharge pipeline. This included a tunneled crossing of Alameda Creek. • Nine (9) existing chemical tanks and associated electrical and instrumentation components were 25 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) replaced under the construction contract. The existing chemical tanks and the associated electrical and instrumentation had reached the end of their useful life and were in jeopardy of failure. • Miscellaneous plant improvements include a new emergency generator and improvements to the plant electrical system, substation, electrical panels, and motor control centers; an upgrade of the instrumentation and controls; a new filter wash water recovery basin; improvements to the flow distribution structure and associated facilities; replac ement of the plant’s existing boiler; improvements to the influent chemical mixing system; and repaving of the existing plant access road.
10015332 - San Antonio Pump Station Upgrade (Completed) The project consists of:
• Replacement of the three (3) 1,000-horsepower electrical pumps. • Addition of two (2) 1.5-megawatt emergency generators. The generators are sized to power the three (3) electric pumps.
• Seismic retrofit of the pump station, including reinforcement of the walls, foundation improvements, and connection of the roof to the walls.
10015492- WSIP Closeout - Sunol Valley
• Alameda Siphon No, 4 Carrier Water System Modifications – The 10015291 Alameda Siphon No. 4 Project was completed in 2013. Since that time, new facilities that have been brought on-line as well as other changes have occurred in water operations, have resulted in an apparent drop in wate r
pressures and volumes at the Sunol Valley Chloramination Facility. This has reduced the available water needed for the current carrier water system to pump the necessary water treatment chemicals into the system. This new sub-project is designed to resolve the deficiency and allow the facility to better meet its water delivery reliability LOS goal. This sub-project will be constructed by a job orde r
contract including:
o Modifications of the current chemical injection system of overcome lack of water system pressure and volume
o New supplemental water facilities, including possible new storage tanks, and monitoring and regulating equipment as needed
o Plumbing and control connections between the new facilities and the current system • Erosion Repair at Pond F3 East – The completed 10015319 San Antonio Backup Pipeline Project included drainage improvements on the east side bank of Quarry Pond F3 East.
After completion o f
construction, it was noted that the rock riprap below a 12- inch drainage pipe had eroded away and undermined the downstream section of the pipe. This sub-project will repair the erosion and restore the drainage pipe through a job order contract including:
o New rockfill on the east back of the quarry pond from the current drainpipe to the toe of the bank o Excavation and grading to remove loose bank debris and prepare the subgrade slope to receive new rockfill
o Extension of the existing drainpipe downslope to the water line of the pond o Temporary access improvements at the side bank of the pond for a crane and other equipment to deliver to, and place new rockfill and other materials into, the repair area • Sunol Valley Water Treatment Plant Basin Polymer Feed Facility. The Sunol V alley Wate r
Treatment Plant Expansion and Treated Water Reservoir Project was completed in 2014 and included addition of a new fifth flocculation sedimentation basin (Basin 5) to the existing four (4) basins at the plant. During operations after completion, it was noted that Basin 5 was not able to achieve the optimal water production goal of 40 million gallons per day consistently. This sub-project is to build a polyme r
feed facility that will serve not only Basin 5, but also the four (4) older basins (Basins 1 to 4), to optimize plant water production, and allow this facility to better meet its water quality and delivery reliability LOS goals. The portion of the facility cost attributed to Basin 5 will be funded under the WSIP; the portion of the facility cost attributed to Basins 1 to 4 will be funded under the Water 10- Year Capital Improvement Program. This sub-project will be constructed by a bid contract including:
o Addition of new flocculant aid polymer to Basin 5
26 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) o Water testing to develop a range of polymer doses for the range of different water quality expected at the plant
o Construction of new structures and facilities to store, monitor and control the application of the new polymer
o Possible extension of the new polymer to optimize water production from the four (4) older basins • Miscellaneous Work at Alameda West Portal, Irvington Portal and San Antonio Back-Up Pipeline – The CUW 35901 New Irvington Tunnel (NIT) was completed in 2017, and the CUW 37403 San Antonio Backup Pipeline (SABPL) was completed in 2016. This subproject will include the following work:
o Installation of new security doors at Alameda West Portal (AWP) and Irvington Portal (IVP) o Installation of new couplings between the valve stem and actuator for the cathodic protection at AWP and IVP
o Refurbishment of uninterruptible power supply (UPS) and installation of new enclosures for the UPS at AWP and IVP
o Installation of discharge pipe lateral supports, safety railings, ladder stiffening supports, and sunshades for electrical equipment on SABPL
• New Irvington Tunnel Water Quality Equipment Relocation – The 10015290 New Irvington Tunnel (NIT) project installed new water quality monitoring equipment in an underground vault to monitor wate r
quality on Irvington Portal 2 (IP2). After the equipment was installed, problems were noted that related to safe access and water drainage. This sub-project is to relocate the water quality monitoring equipment to Building B10 for Irvington Portal 1 (IP1), and install a new pump to pump water from Irvington Tunnel 2 (IT2) to Irvington Tunnel 1 (IT1) to provide IT2 water for the water quality monitoring. • San Antonio Backup Pipeline Carrier Water System Modifications – The 10015319 San Antonio Back Pipeline was completed in 2016. Since that time, changes in operations have resulted in an apparent drop in water pressure in the carrier water system for two (2) chemicals including Calcium Thiosulfate for dechlorination and Hydrofluorosilicic acid for pH adjustment. The purpose of this sub-project is to modify the carrier water and chemic al injection system to ensure the chemicals will be injected properly. Fish Passage facilities at the Alameda Creek Diversion Dam is to modify the VSAT power supply system, replace the main photovolta ic battery bank and realign several valves and actuator drive stems.
• Alameda Creek Diversion Dam Power and Communication Facilities (new sub-project addition in 2022) – The 10015317 Alameda Creek Diversion Dam Fish Passage Facilities (WD-2729 contract) is a sub-project to the Calaveras Dam Replacement Project, which will close out on 3/31/2022.
After
operating the fish passage facility for over one year, a few deficiencies were discovered in the powe r system for the communication facilities, the main power system, and a few of the valves and gates. Job Order Contracts (small contracts less than one million dollars in value) will be used to address these issues under this new sub-project. This subproject is to modify the VSAT power supply system, replace the main photovoltaic battery bank and realign several valves and actuator drive stems.
BAY DIVISION REGION
10015282 - BDPL Nos. 3 & 4 Crossover/ Isolation Valves (Completed) The project consists of:
• Two (2) large vaults that are primarily below-ground installations with only the top 30 inches of the structure exposed. Above-ground facilities include se curity fencing and satellite communication dishes.
The vaults are approximately 2,400 feet apart along the BDPL Nos. 3 and 4. • Each vault includes four (4) mainline isolation valves and a crossover valve. The isolation valves are hydraulically operated, while the crossover valves are electrically operated. • The existing BDPL No. 3 is a 78-inch-diameter reinforced concrete pipe, and BDPL No. 4 is a 96-inch-diameter PCCP. At each vault, approximately 170 feet of each pipeline will be replaced with welded steel pipe.
27 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) • Each facility will be equipped with connections for portable electric generators, and a battery system will provide immediate emergency power to operate the hydraulic system. • Valve actuators will have remote monitoring and operating capability through the SFPUC SCAD A system.
10015283 - Seismic Upgrade of BDPL Nos. 3 & 4 (Completed) The existing pipeline fault crossing between the two (2) crossover/isolation valve vaults constructed under the BDPL Nos. 3 & 4 Crossover/Isolation Valves Project is about 2,400 feet in length, and consists of BDPL No. 3, a 78-inch-diameter reinforced concrete cylinder pipe, and BDPL No. 4, a 96-inch-diameter PCCP. These vaults are located east and west of I-680 near the intersection o f
Mission Boulevard. The current project scope includes replacement of about 2,300 feet of BDPL No. 3.
Ongoing investigations have determined that improv ements to BDPL No. 4 are also required to facilitate the failure of BDPL No. 4 in a controlled manner that does not cause the failure of BDPL No.
3. It is planned that about 400 feet of the new BDPL No. 3 will cross Trace A under I-680 in an existing oversized corrugated metal pipe; about 300 feet that crosses Trace B under Mission Blvd. will be in a newly constructed concrete vault (“box culvert ”); and the remaining new pipeline will be buried.
All new
construction will be in the SFPUC’s existing right-of-way (ROW).
The project primarily consists of:
BDPL No . 3:
• A new 300-foot-long concrete vault will be constructed under Mission Boulevard near the I- 680 Interchange where Fault Trace B is located. A new 300-foot segment of 72-inch welded steel BDPL No. 3 will be installed inside the vault. Within the vault and on either end of the fault trace zone, 72-inch-diameter ball joints and slip joints will be installed that will accommodate pipeline displacement during a seismic event.
• For the crossing under I-680 at Trace A, about 400 feet of 78-inch-diameter welded steel pipe will be installed in an existing, unused corrugated metal pipe. About 1,450 feet of additional new 78-inch diameter welded steel pipe will connect the existing and new segments between the two (2) vaults, and will be buried.
BDPL No . 4:
• About 400 feet of new 80-inch steel liner will be installed inside BDPL No. 4 at Hayward Fault Trace C.
• BDPL No. 4 will be encased with concrete outside the existing slip joint vault at Hayward Fault Trace B.
• Modifications to the existing slip joint vault will be made including enlarging BDPL No. 4 pipe penetrations in the vault, new drainage systems, new roof panels and adjustments to the existing slip joint.
• Modifications to the existing BDPL No. 3 (to be abandoned in place) to collect and divert water from the area and prevent the undermining of the new BDPL No. 3. • About 400 feet of new 90-inch diameter welded steel pipe will be installed at Trace A of the Hayward Fault.
• Relocation of the following utilities: two (2) Alameda County Water District water pipelines, one (1) Union Sanitary District sewer pipeline, one (1) conduit of AT&T phone lines, and one (1) six-inch diameter PG&E gas pipeline.•
10015299 - SCADA System - Phase II (Completed)
The project primarily consists of:
• Establish a common software platform and migrate all elements to this platform. • Connect existing flow meters and new pressure transmitters, and provide communication to SCAD A
master station at five (5) major Bay Area Water Supply and Conservation Agency (BAWSCA) custome r sites.
• Install pressure transmitters, perform piping modifications, and provide communication to SCAD A
28 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) master station at seven (7) existing regulating valves in the City of San Francisco distribution system. • Install new flow and pressure monitoring devices at 23 key locations in the City distribution system.
10015308 - BDPL Reliability Upgrade – Tunnel (Completed) The tunnel extends 5 miles under San Francisco Bay and is adjacent to the marshlands between the vicinity of the Ravenswood Valve Lot and the Newark Valve Lot. The tunnel will be constructed with a Tunnel Boring Machine (TBM). The final tunnel lining will consist of a 9-foot- diameter welded steel pipeline. The tunnel will terminate on each end with vertical shafts and a connection to the BDPL Nos. 1, 2, and 5 piping manifolds. The two (2) piping manifolds are provided under the BDPL Reliability Upgrade - Pipeline Project. The tunnel spoils are anticipated to be used as part of the conversion o f
adjacent salt ponds to marshland. The portion of the existing BDPL Nos. 1 and 2 that are replaced by the tunnel will be capped on each end and will be abandoned in place.
Two (2) facilities were added to the original scope of work as part of the March 2014 Revised WSIP and are necessary to ensure the project will meet LOS goals:
• SCADA Communications system at Newark Valve Lot - This added scope provides for the installation of a SCADA communications system and integrati ng such system into the existing water quality monitoring equipment located in the Newark Valve Lot Control Building. The work consists of installing communications equipment, telephone line, wires, conduits, and electrical cabinets. • 42–inch diameter Bay Division Pipeline No. 2 (BDPL2) Bypass - The supply from the Newark Valve Lot to the City of Hayward is currently being fed from both Bay Division Pipelines (BDPL) No. 1 and No.
2. Upon the completion of the Bay Tunnel Project, Hayward supply will be fed only by BDPL2. BDPL2, built in the mid-1930s, is a mixture of reinforced concrete cylinder pipe and wrought steel pipe. Thus, with the original scope of the Bay Tunnel project, the reliability of the Hayward service line could be reduced when the project is completed. The scope of work for this change provides for the installation 640 lineal feet of new 42-inch diameter welded steel pipe, replacing a portion of BDPL2, thereby increasing the reliability of the Hayward service.
10015309 - BDPL Reliability Upgrade – Pipeline (Completed) The project primarily consists of:
• In the East Bay, 7 miles of 72-inch-diameter pipe will be constructed between the Irvington Portal and the Newark Portal of the new Bay Tunnel. On the Peninsula, 9 miles of 60-inch- diameter pipe will be constructed between the Ravenswood Portal of the new Bay Tunnel and the portal of the Pulgas Tunnel.
• A seismically resistant crossing of the Hayward Fault will be constructed. The crossing will include a new crossover valve vault on each side of the faul t. The valves will be hydraulically actuated and will include emergency batteries. The pipe between the vaults will be higher strength and will be installed on a special foundation or trench section.
• Isolation valves and an interconnecting pipe manifold will be constructed at each portal of the new Bay Tunnel. The facilities will include new or rehabilitated control buildings with new emergency generators.
• New crossover valves between BDPL Nos. 2 and 5 will be installed at a location in Redwood City.
The crossover facility will include a new or rehabilitated control building and connections for a portable emergency generator.
• A new throttling valve will also be added on BDPL No. 5 at the Pulgas Valve Lot. The throttling valve will include a new or rehabilitated control building.
• The project originally included underground concrete vaults for crossover facilities at Newark, Ravenswood, and Redwood City Valve Lots. The current project eliminates the concrete vaults and directly buries the valves with full access to valve actuators at these facilities.
10015310 - BDPL Reliability Upgrade - Relocation of BDPL Nos. 1 & 2 (Completed) The project includes relocation of approximately 600 feet of each pipeline (BDPL Nos. 1 and 2) at the BART/railroad crossings. The pipe segments to be relocated will be installed inside new casings that 29 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) will be placed by the construction contractor doing the other development work in the area. The encased pipes are being installed in accordance with a utility agreement between the City of Fremont and the SFPUC.
10015324 - BDPL Nos. 3 & 4 Crossovers (Completed)
The three (3) proposed crossover facilities are located near the Guadalupe River in Santa Clara, nea r
Barron Creek in Palo Alto, and near Bear Gulch in Atherton. The facilities include vaults that are largely below-ground, with only the top 30 inches exposed. They are very similar to one another, consisting o f four (4) mainline valves and a crossover valve. Emergency engine generators will be included as an optional bid item.
10015338 - SFPUC/EBMUD Intertie (Completed)
The project primarily consists of:
• Providing new 36-inch-diameter piping and valving at the Newark Turnout to provide an additional connection between BDPL Nos. 1 and 2 to the existing City of Hayward system. • Using the existing City of Hayward system fo r conveyance and providing six (6) new valves fo r
isolation.
• Providing 1.3 miles of new 36-inch-diameter pipe to connect the City of Hayward system to the EBMUD system and providing a new pump station along this alignment.
10015341 - BDPL No. 4 Condition Assessment PCCP Sections (Completed) This project is 100% complete and has been closed out. This project includes a detailed condition assessment of the two PCCP segments along BDPL No. 4. The first reach of concern (Reach 1) is 8.6 miles long and 96-inches in diameter. The second reach of concern (Reach 4) is 8.0 miles long and 84-inches in diameter. The condition assessment consists of an electromagnetic survey, seismic risk analysis, corrosion survey, visual inspection, and field investigations.
The assessment identified six (6) reaches of pipe (144 feet total out of 16 miles) that are potentially distressed. During initial investigations, the condition of one (1) distressed pipe segment (Pipe 1558) was determined visually to be particularly deteriorated, and immediate emergency repair was recommended. The project funded and completed emergency repair, using post-tension exterio r
tendon repair, for this segment. For the other five (5) potentially distressed pipe segments that were identified using electromagnetic survey, and determined to be of lower priority, recommendations were made for future excavation to confirm pipe condition in these areas, and repair if needed.
A number of
future follow-up investigations were recommended, including monitoring of groundwater acidity for a period of one (1) year in the area of Edgewood Road, and additional excavations of lower priority pipe pieces.
Any additional required repairs will be scheduled based on urgency and funded through the Water Enterprise’s Repair and Replacement (R&R) Program.
10015484- WSIP Closeout - Bay Division (Completed)
• Site Drainage and Pipe Coating Repairs - This sub-project will focus on providing a drainage system solely within SFPUC’s Right-of-Way to address an erosion issue that developed after the construction of the 10015283 Seismic Upgrades of BDPL Nos. 3 & 4. In addition, this sub-project will include repairs to coatings on the pipe and pipe supports of the Bay Division Pipeline (BDPL) No. 3 to address issues that developed inside the articulated vault after construction was completed. The sub-project includes design, construction, and management of the drainage system work. • Bay Tunnel Warranty Inspection and BDPL 1 & 2 EIR Mitigation – This sub-project advances the planning for a decommissioning study of the existing BDPL Nos. 1 and 2 until such time that the funding for a new Water 10-Year Capital Improvem ent Project (CIP) to further study mitigation alternatives and pursue removal of the BDPL Nos. 1 and 2 within the Don Edwards San Francisco Bay National Wildlife Refuge becomes available in FY2020-21. • Hydro-seeding at Bay Tunnel Project - Due to the drought conditions and timing of hydro-seeding performed for the Bay Tunnel Project outside of the typical seasonal window, it may not be possible to 30 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) file the Notice of Termination (NOT) to close out the storm water permit prior to the Bay Tunnel Project closeout date, as the 70% growth take requirement, with less than 10% noxious weeds, may not be achieved by that time. Accordingly, the scope of this sub-project provides for monitoring of the hydro-seeded areas, removal of noxious weeds and potentially re-seeding some of the areas at the tunnel portals in Menlo Park and Newark if the storm water performance objectives are not met. • Newark Valve Lot Additional Gravel Placement - The Bay Tunnel Project design plans call for a portion of the Newark Valve Lot to be landscaped and hydro-seeded. However, based on recent discussions, Operations staff are requesting that gravel be placed in this area since it will be a high traffic area during shutdowns and other maintenance work. Accordingly, this sub-project provides fo r
the purchase and placement of the gravel.
• Corrosion Protection for Valve E5OU – The E50U Valve was installed in 2011 as part of the 10015309 BDPL Reliability Upgrade – Pipeline Project. Immediately prior to the Bay Tunnel Project in-service/commissioning date in early Fall 2015, the Bay Tunnel Contractor completed the flanged connection of the manifold to the existing E50U Valve. However, during the installation and testing o f
the new flanged connection, the Bay Tunnel Contractor discovered an inconsistency in the corrosion protection isolation system of the existing valve E50U (high corrosion potential). It was decided to not authorize a Change Order to fix the corrosion problem of the E50U Valve at that time due to the risk o f
potential delays to the Bay Tunnel Project, at high cost, if leaks were to occur after the solution was implemented. Accordingly, this sub-project incl udes excavating and shoring the area around the valve, and removal of one bolt at a time for testing and replacing of the bolts (if necessary).
A gasket will be
purchased and may be installed if there are leaks that develop after the bolts are removed, cleaned and replaced. The proposed work on the valve will be done during the shutdown of the Bay Tunnel fo r
warranty inspection in Winter 2016/2017.
• Ventilation and Sump Pump Systems Installation (new sub-project in 2018) - This sub-project provides improvements for inspection, monitoring and maintenance associated with the construction o f the 10015283 Seismic Upgrades of BDPL Nos. 3 and 4. The BDPL No. 3 pipe, slip joint, ball joints and pipe supports and seismic monitoring equipment inside the articulated vault require on-going inspection, monitoring and maintenance. The type and frequency of inspection and maintenance were not well defined during the design phase; it is now cl ear that a fixed ventilation system is required fo r
the BDPL No. 3 vault. Furthermore, the BDPL No. 4 expansion joint vault also requires access fo r inspection and monitoring; installation of a sump pump is required to remove water from the vault prio r to inspections. Accordingly, the scope of this sub- project is to install a fixed ventilation system and a sump pump system to eliminate the need for removing access hatches and installing temporary fans and sump pump prior to accessing the vaults for frequent inspection and maintenance needs.
PENINSULA REGION
10015285 - Lower Crystal Springs Dam Improvements (Completed) The project consists of:
• Spillway modifications that include widening the spillw ay, constructing two (2) bridge piers within the spillway to accommodate rebuilding of a San Mateo County Bridge, removing the existing timbe r
stop-log system, constructing a new weir system within the spillway, installing access cat-walks fo r operation and maintenance, and eliminating water ponding on top of the dam. • Parapet wall modifications that include raising the wall that is located on top of the upstream face o f
the dam and raising the approach walls to the spillway. • Stilling basin modifications at the base of the spillway that include removing the existing basin, constructing a new larger basin, and adding downstream riprap protection at the toe of the basin.
10015287 - New Crystal Springs Bypass Tunnel (Completed) The project consists of:
• A 4,200-foot-long tunnel with an 8-foot-diameter welded steel liner. • Vertical shafts on each end of the tunnel to accommodate the TBM and future maintenance. 31 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) • The southern shaft will include a connection to the existing CSBPL near the north end of the existing Crystal Springs Bypass Tunnel; the existing pipeline has been determined to be seismically reliable in this area.
• The northern shaft of the new tunnel will tie into the southern ends of both the Crystal Springs Pipeline (CSPL) No. 2 and the Sunset Supply Pipeline (SSPL). The connecting segment and tie-in to the SSPL will be provided by this project. However, the connecting segment and a blind flange fo r
CSPL No. 2 will be provided by the Crystal Springs Pipeline No. 2 Replacement Project, and this project will tie into the blind flange. This contractual arrangement is used to prevent two (2) shutdowns of the CSPL No. 2.
• New isolation valves and valve vaults.
• Standby power near valve vault G40.
• The existing pipeline will remain in service to provide redundancy for inspection of the tunnel.
10015288 - Adit Leak Repair - Crystal Springs/Calaveras (Completed) The project consists of:
• Crystal Springs Outlet Tower No. 1: repairing leaks inside the tower, blasting and recoating piping and valves, replacing the roof, structurally retrofitting the access footbridge, and installing a marine hatch at the tower drain.
• Crystal Springs Outlet Tower No. 2: installing a marine hatch at the tower drain. • Calaveras Outlet Tower: installing a dewatering pump, replacing a deteriorated valve actuator, and providing ladder fall protection.
• San Antonio Outlet Tower: installing a dewatering pump and repairing leaks inside the tower.
10015293 - Pulgas Balancing - Inlet/Outlet Work (Completed) The project includes new inlet and outlet piping designed to direct the path of the water in such a manner as to promote better mixing. The shutdowns associated with construction of these improvements also provided an opportunity to perform a condition assessment of the reservoir interio r
that has been used to help identify work associated with the Pulgas Balancing - Structural Rehabilitation & Roof Replacement Project.
10015294 - Pulgas Balancing - Discharge Channel Modifications (Completed) The discharge channel modifications to be built under this project will accommodate the anticipated maximum flow of 250 mgd. Project components include raising the channel walls, repairing concrete cracks and exposed reinforcing steel, strengthening and interconnecting the channel floor sections, and strengthening the tall tapered wall near the Pulgas Tunnel.
10015295 - Pulgas Balancing - Structural Rehabilitation and Roof Replacement (Completed) The project includes structural rehabilitation of the reservoir, which consists of seismic retrofit of the walls, installation of a new steel frame roof, and repairs of concrete cracks and exposed reinforcing steel. The general rehabilitation also includes the installation of a new ventilation system and sampling ports, the replacement of utility piping, and the upgrade of the electrical system.
10015297 - Pulgas Balancing - Modifications of the Existing Dechloramination Facility (Completed)
Improvements to the dechloramination and pH contro l facilities are necessary to address immediate compliance issues. The modifications are anticipat ed to primarily be made to the flow measurement and control system, and to the various process c ontrol and chemical feed systems. Emphasis will be placed on chlorine removal and pH adjustment first to comply with existing regulations, with consideration towards the interdependent secondary goal of maximizing ammonia removal for nutrient control in the reservoirs. The scope of this project will be refined further as design efforts continue to move forward.
32 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) 10015302 - Cross Connection Controls (Completed)
The project consists of providing improvements at the 304 sites identified to address potential cross connections. The work varies from site to site due to specific site conditions. The major work elements typically include:
• Install air gaps at blow-off locations and at air valves • Install backflow protection devices
• Reconstruct or raise existing vaults
• Install new vault covers
• Replace existing air valves
• Modify, relocate, or remove existing blow-off facilities
10015303/ 10015304/ 10015305, Harry Tracy Water Treatment Plant Short-Term Improvements (Completed)
The projects consist of:
• 10015303 (HTWTP Short-Term Improvements - Demo Filters): Retrofit of two (2) filters and full-scale performance demonstration testing (project has been completed). • 10015304 (HTWTP Short-Term Improvements - Remaining Filters): Scope of that project combined with Project 10015304.
• 10015305 (HTWTP Short-Term Improvements – Coagulation & Flocculation/Remaining Filters):
o Coagulation improvements that include restoring and improving operation of the pumped-jet flash-mix system, increasing capacity of the flash-mix pumps , providing the pumps with variable speed controls to improve efficiency, providing an automated dilu tion water system, and reconfiguring the chemical injectors to improve performance.
o Flocculation improvements that include reconfiguring the baffling system to reduce headloss by widening the channels, adding new mechanical mixers with variable speed controls to improve performance and efficiency, and seismically retrofitting the walkways and basin walls. o Filtration modifications to eight (8) of the ten (10) existing filters (two (2) were replaced in Project 10015303), replacing effluent control valves and backwash supply valves, providing a filter to waste system, installing new underdrains and media, and seis mically retrofitting the basin walls.The project consists of retrofitting two filters and performing full-scale performance demonstration testing of the retrofitted filters. The project was successfully completed in November 2006.
10015306 - HTWTP Long-Term Improvements (Completed)
The project consists of:
• Hydraulic improvements in the various treatment units to reduce headloss and increase capacity. • Improvements to the disinfection process by upgrading the ozone generation system and backup oxygen supply.
• Expansion of the filtration process capacity by adding five (5) new filters. • Improvements to the sludge handling system, including the addition of improved thickening and dewatering systems.
• Improvements to the washwater system, including the addition of a second washwater tank, associated equipment and piping.
• Seismic upgrade to all critical process units.
• Electrical upgrade, including a new substation, switchgear, and motor control center. New emergency generators are being provided as part of the Standby Power Facilities - Various Locations Project. • Interim seismic response improvements, such as automated valves, to minimize seismic hazards until the long-term improvements are complete.
• New 11.0 mg TWR and subsequent abandonment of the existing 6.5 mg and 8.0 mg TWRs. • New seismically reliable pipelines just east of the existing TWRs. • Miscellaneous improvements to chemical feed systems, site piping, drainage, and roads. • Addition of a third 2-megawatt generator set to satisfy emergency power needs of new facilities added as part of the project;
33 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) • Replacement of parallel switchgear and motor control center to accommodate addition of third generator set and to provide additional operational flexibility; • Improvements to plant’s recloser to increase reliability of PG&E power to the plant; • Additional seismic anchorage of existing equipment; and • Hydraulic modifications to coagulation and flocculation basins.
10015307 - Peninsula Pipelines Seismic Upgrade (Completed) The scope of this project includes geotechnical investigations to characterize the Serra Fault in the vicinity of the pipelines and to confirm assumptions about sub-surface conditions along the length o f
the pipelines (SAPL2 and SAPL3 from HTWTP to San Pedro Valve Lot, SSBPL from HTWTP to Capuchino Valve Lot, and Sunset Supply Pipeline (SSPL) from Capuchino Valve Lot to San Pedro Valve Lot). In addition, hydraulic modeling has been performed to review system/facility requirements to meet system goals. The objectives of the investigations were: 1) to determine the potential fault offset at the Serra Fault crossings and the potential response from the three (3) pipelines to these offsets, and 2) to determine potential for pipeline rupture due to displacement from liquefaction, landslides, and other seismically-triggered hazards along the pipeline alignments.
The extensive geotechnical and modeling analyses per formed to date have been carefully reviewed to identify specific project recommendations. The refined project scope currently includes the following components: The refined project scope (Phase 1) currently includes the following components at five (5) locations on the San Francisco Peninsula to address Serra Fault Crossing locations and liquefaction hazard potential in the Colma Creek area:
• Colma Site – Replacement of an approximately 700-ft segment of SAPL2 • South San Francisco Site – Replacement of an approximately 720-ft segment of SAPL2 • San Bruno North Site – Stabilization of SAPL2 where it extends through a tunnel • San Bruno South Site – Replacement of an approximately 1,170-ft segment of SAPL2 and an approximately 1,050-ft segment of SAPL3; and
• Millbrae Site – Replacement of an approximatel y 900-ft segment of SSBPL A common staging area is planned to be located at SFPUC Baden Valve Lot in South San Francisco on El Camino Real. Phase 2 of the project will include installation of two (2) new isolation valves near the Baden Valve Lot on SAPL No. 2 and No. 3 in the City of South San Francisco.
The WSIP construction contract will include both Phases 1 and 2.
Phase 3 has been identified as a non-WSIP project, and includes condition assessment and improvements to SAPL2, installation of new isolat ion valves, and the potential addition of flexible connections along the alignment within the City of San Francisco.
10015311 - Capuchino Valve Lot Improvements (Completed) This project is 100% complete and has been closed out. The project primarily consists of replacing two (2) existing isolation valves; providing new electric actuators for valve operation; performing concrete crack repair to prevent water leakage into the vaul t; providing new instrumentation and control systems for valve operation and pressure monitoring; and relocating the existing electrical and instrumentation systems outside the vault.
10015313 - Crystal Springs/San Andreas Transmission Upgrade (Completed) Improvements will be made to the Upper Crystal Sp rings Dam discharge culverts, the Lower Crystal Springs outlet structures, the Crystal Springs Pump Station (CSPS), the CSSA Pipeline, and the San Andreas outlet structures.
The project primarily consists of:
• The Upper Crystal Springs Dam includes two (2) discharge culverts. During geotechnical investigations, it was confirmed that the lower culvert crosses the 1906 San Andreas Fault.
Improvements will be made to the lower culvert to ensure its operation following a San Andreas Event.
This will involve lining the culvert to provide oper ational and seismic protection and providing a second discharge riser on the east side of the San Andreas Fault. 34 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) • The Lower Crystal Springs Outlet Structures Nos. 1 and 2 improvements include removal of all equipment from the outlet towers and installation of new submerged adit valves; removal of the free-standing portion of the towers and bridge to address seismic concerns; installation of reliable adit selection system; and installation of fish screens. Additionally, the tunnels and pipe systems leading from the outlet structures to the CSPS will be improved. • A new CSPS, together with site piping and valving, will be constructed with increased capacity to meet LOS goals and other functionalities, similar to those provided by the existing pump station.
Additionally, a new electrical substation; emergency backup electrical generators for emergency demands, yard valves and small auxiliary pump (but not for large pumps); and security-related site improvements will be provided.
• The emergency chlorination system at the existing CSPS will be replaced with a portable chlorination system to provide more reliable response during an emergency. • The CSSA Pipeline improvements include improvements to the first 800 feet of pipeline (upstream end of pipeline) to provide reliable operation at a higher operating pressure; replacement of the last 1,400 feet of the pipeline (downstream end of pipeline) to address seismic hazards; replacement and refurbishment of all appurtenances and lining to provide a 50-year life and protect against surge and seismic hazards; improvements, installation, and repair to 31 drainages that cross the pipeline alignment; and road improvements to provide access for maintenance and emergency response. • The San Andreas Reservoir Outlet Structure Nos. 2 and 3 improvements include seismic retrofit to the structures; construction of an approach channel; modifications to the adits; replacement of all equipment in the towers; and installation of emergency isolation valves, reliable adit selection systems, and fish screens.
• The pipe in the tunnel leading from the San Andreas Outlet Structure No. 2 to the raw water pump station at the HTWTP will be replaced with a tunnel liner system. • The tunnel portal of San Andreas Outlet Structure No. 3 will be retrofitted to protect the pipeline from the Serra Fault crossing.
• The isolation valves at Upper Crystal Springs Dam were removed from the contract per direction from DSOD. The concern was that the installation of these valves would bring the Upper Crystal Springs Dam (Hwy 92) under DSOD’s jurisdiction.
• Part of one segment of pipeline from the Crystal Springs Pipeline No. 2 project was added to this contract. This segment runs along the access road to the pump station and was added to avoid conflict between different Contractors.
10015322 - Crystal Springs Pipeline No. 2 Replacement (Completed) The major project elements consist of:
• Seismic reliability improvements, which include replacing or relocating a total of 1.7 miles of pipe at 12 different locations, sliplining 3.5 miles of pipe, retrofitting pipe bridge pier supports at two (2) creek crossings, providing a new connection at the CSPS, and providing a connecting segment with a blind flange for later connection to the NCSBT. The tie-in to the NCSBT will be performed under the NCSBT Project, eliminating the need for a second shutdown of the CSPL No. 2. • Installing a new isolation valve near the CSPS area.
• Performing site improvements, including the installing fences and enclosures for exposed facilities, concealing exposed portions of pipe, and painting exposed portions of pipe. • Upgrading the cathodic protection system along the length of the pipeline.
10015323 - San Andreas Pipeline No. 3 Installation (Completed) This project is 100% complete and has been closed out. The major project elements include:
• Installation of 4.4 miles of 36-inch-diameter pipe with three (3) bore-and- jack street crossings along
19th Avenue and John Daly Boulevard.
• Installation of five (5) service connections.
• Installation of one (1) altitude valve at Merced Manor Reservoir, six (6) isolation valves, and a flow meter.
35 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) • Installation of a new cathodic protection system.
• Installation of three (3) connections to the San Andreas Pipeline No. 2 (SAPL2).
10015339 - Baden and San Pedro Valve Lots Improvements (Completed) The project includes a general mechanical and seismic upgrade of existing facilities and the addition o f
a pressure-reducing station. Miscellaneous work will also be performed at the Pulgas Pump Station and the Pulgas Tunnel Air Shaft to facilitate moving flow southward through the system at highe r pressures than normal.
The major work elements at the various sites primarily include:
• The Baden Valve Lot improvements include installati on of a new pressure-reducing valve to allow water to flow from the HTWTP high-pressure zone to the low-pressure supply zone, installation of five (5) new isolation valves, replacement of three (3) ex isting valves, seismic retrofit of eight (8) existing vaults, replacement of onsite piping segments, repl acement of the existing electrical switchgear and transformer, replacement of three (3) pumps, installation of variable frequency drives, and othe r
miscellaneous improvements
• The San Pedro Valve Lot improvements include seismic retrofit of two (2) valve vaults, modification o f
the electric valve operators, installation of a new air valve, and miscellaneous site drainage improvements
• The Pulgas Pump Station improvements include replacement of one (1) isolation valve • The Pulgas Tunnel Air Shaft improvements include site work to stabilize slopes
10015486- WSIP Closeout – Peninsula (Completed)
• LCSD Stilling Basin Modifications & Dissipation Structure Riprap – This sub-project is provided in response to concerns that fish may be “trapped” in the Lower Crystal Springs Dam (LCSD) stilling basin during low flow summer periods, and that high flow discharges from the new LCSD dissipation structure and potential high water levels in Pool 2 may cause erosion of the bank adjacent to the dissipation structure. The dissipation structure includes 60-inch diameter pipes with a maximum flow o f
600 cubic feet per second (cfs) each and two (2) 8-inch diameter pipes with maximum flow of 7 cfs each. During flow testing of the dissipation structure, released water could be observed flowing ove r
the dissipation structure, potentially eroding the bank adjacent to the structure. It was also observed that during summer periods, due to low flow in the channel downstream of the stilling basin, fish trapped in the basin were dying due to warm water temperatures. The purposes of this sub-project are to hydraulically connect the stilling basin with Pool 2 in order to allow fish to escape the basin in summer, and to add rip-rap behind the dissipation structure to prevent erosion. Specifically, this sub- project consists of:
o A new deeper channel between the dissipation structure and the Pool 2, which would prevent fish from being trapped in the stilling basin
o Installation of a new SCADA controls to the existing 8-in discharge pipeline and re-routing one (1) line to the stilling basin
o Installation of additional rip-rap around the dissipation structure o Installation of a new 24-inch HDPE pipeline through an existing abandoned 60- inch pipe directed to the stilling basin
o Coordination and facilitation of access for a piezometer drilling contractor during periods o f
concurrent work in the stilling basin
o Addition of tree, shrub, and grass plantings along the creek bank in accordance with the approved re-vegetation plan
• LCSD Valve H53 / Pipeline Investigation & Fisheries Release Valve – As stipulated by the US Army Corps of Engineers 404 permit and the associated biological opinion by NOAA’s National Marine Fisheries Service (NMFS) covering the SFPUC activi ties at the Crystal Springs Pump Station (CSPS), the SFPUC is to take measures to protect the threatened Central California Coast (CCC) steelhead present in San Mateo Creek at CSPS site. One measure requires the release of fresh water at a rate o f
36 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) 3 to 17 cubic feet per second (cfs) depending on the season in recorded dry and wet years. This sub- project will utilize modification of an existing pipeline to release the required flows to the LCSD stilling basin feeding San Mateo Creek. Specifically, this sub-project consists of:
o Condition assessment of the existing 60-in diameter pipeline from Valve H-53 to the stilling basin. In addition, valve H-53 will be exposed and visually inspected to determine its condition, requiring excavation and shoring of a pit approximately 20 feet long by 20 feet wide by 20 feet deep. o Depending on the verified condition, viable alternatives, including abandonment of the option to use H-53 pipeline, will be evaluated.
o The approved option will include a SCADA controlled 12-inch valve installed at the discharge end o f
the pipeline. Depending on the condition of the pipeline, the approved option may also include repairs to the pipeline lining. Options may also include slip-lining the existing line with a smaller diamete r
pipeline such as 12 to 24-in diameter flexible polypropylene pipe. o Use of a temporary pipeline “line stop” and associated shoring upstream of Valve H-53 to allow fo r
potential installation of a permanent blind flange.
o Replacement of leaking plug valves that discharge from an existing concrete vault to the stilling basin with new knife gate valves.
o Installation of new flow control valves, isolation valves and appurtenances for Pool 2. o Connections to the existing 72-inch pipeline using hot taps. o Construction of a new concrete walkway from the access road to the existing stairs at the flow dissipation structure adjacent to the stilling basin.
• New Crystal Springs Bypass Tunnel Electrical Modifications – The New Crystal Springs Bypass Tunnel (CUW35601) was commissioned in July 2011 and the project administratively closed in August 2012. Various inspections of the above ground facilities discovered excessive groundwater intrusion and resultant corrosion of equipment and electrical components. Preliminary inspections identified the following in the South Shaft: groundwater seepage into the venturi meter and valve G32 vaults through pipe/conduit wall penetrations, resulting in coating failure and localized corrosion. In the North Shaft, preliminary investigations identified surface runoff is entering electrical boxes. In addition, groundwate r
was seeping through wall penetrations into G36 and G38 vaults. Due to the high moisture, some electrical switches and two (2) actuators failed and required replacement. This sub-project developed a thorough documentation of the above ground facilities at the north and south shafts and designed and implemented repairs as warranted. Repairs included replacement of damaged equipment and electrical components, water proofing of the affected vaults, and rechanneling of surface runoff as necessary.
This subproject is 100% complete and has been closed out. • Closeout of DSOD Permit Applications for LCSDI and CSSA Projects – California Department o f
Water Resources, Division of Safety of Dams (DSOD) issued Alteration Permits allowing the start o f construction of CUW35401, Lower Crystal Springs Dam Improvements (LCSDI) Project ( Application No. 10-6) and the construction of 10015313, Crystal Springs / San Andreas Transmission Upgrade (CSSA) Project (Application No.10-10). In June 2015, DSOD issued an approval of the completed work and requested the SFPUC to submit the final documentation of each project. Under this sub-project, the following information and documents will be extrac ted from the project files and submitted in a format acceptable to DSOD: affidavit of actual costs of construction and design; full size as-built drawings stamped and signed by a California registered Civil Engineer; and final concrete testing summary reports.
• Coordination with San Mateo County Bridge Construction over LCSI - The implementation of the CUW35401 Lower Crystal Springs Dam Improvement (LCSDI) Project required the demolition of an existing San Mateo County (SMC) Bridge that spanned over the LCSD crest. With the completion o f
the LCSDI Project, SMC awarded the construction contract for the new bridge and gave notice-to-proceed to the construction contractor in January 2016. To support this, SMC and the SFPUC executed a Memorandum of Understanding outlining the roles and responsibilities and expectations o f
both organizations. Accordingly, this sub-project will support the coordination between the SFPUC and SMC Bridge Project team. Typical activities may in clude response to relevant Requests for Information (RFI) such as existing site conditions, existing dam design, coordination with SFPUC Operations and 37 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) Watershed groups; field inspection of placement of the bridge piers over the dam and the construction of the SFPUC funded catwalk; and attendance of construction meetings and participating in othe r activities concerning the water quality in Lower Cr ystal Springs Reservoir, security measures, and other aspects affecting SFPUC assets.
• Harry Tracy Water Treatment Plant (HTWTP) Improvements (new sub-project in 2018) - The Harry Tracy Long-Term Improvements Project (10015306) was completed in 2014. Since 2014, the following needs were identified to address construction issues and improve operations at the plant to fully meet the LOS goals and objectives:
o Automate the 12-inch gate valve at the High Rate Clarifiers’ filter to waste manhole to eliminate the need for Operations to manually operate the valve on a frequent basis o Modify Sludge Tank No. 1 piping to eliminate cavitation in the washwater pumps o Upgrade the filters of three (3) emergency generators from passive filters to active filters to increase the effectiveness of the exhaust filtration and to reduce the need for Operations to constantly clean the filters
o Repair leaks in the filter gallery channels where stainless steel angle plates were added to support several concrete walls
o
Automate flushing of the sludge transfer pumps and piping to eliminate the need for Operations to manually flush on a frequent basis
o Replace and relocate failed variable frequency drives (VFDs) for the wash water and sludge transfe r
pumps to address an over-heating issue
o Install double containment for the diesel fuel supply lines for the exterior generator to protect against leaks into the environment
o Provide training and programming modifications to the Raw Water Pump Station switchgea r
equipment to enable remote SCADA control
o Install vibration control monitoring system on the electrical panels at the Raw Water Pump Station to replace the existing obsolete system
o Evaluate/Assess condition of failed mixers in the equalization basin • Crystal Springs/San Andreas Pipeline (CSSA) Erosion Repairs (new sub-project in 2018) - The heavy winter storms of 2017 exacerbated erosion at two (2) watershed culvert locations, OW-13 and OW-18, along the CSSA Pipeline. Erosion has caused the CSSA Pipeline to be exposed and potentially undermined. The scope of this sub-project is to repair the erosion with systems consistent with the requirements of permitting agencies such as the State Water Resources Control Board.
SAN FRANCISCO REGIONAL REGION
10015241 - Regional Groundwater Storage and Recovery
The original scope of the Regional Groundwater Storage and Recovery (RGWSR) project was planned to be constructed in two (2) phases. The original scope of Phase 1 included construction of 13 new deep groundwater wells, and the original scope of Phase 2 included construction of 2 to 3 additional wells, depending upon well yield. Based on the modelling data inputs and results, it is projected that the 13 new wells constructed in Phase 1 would pr oduce approximately 6.2 mgd of dry year supply ove r
7.5 years. Operating the RGSR Project during time s of drought will provide data and insights into how much water can be reasonably expected to be produced by the project and if additional well stations are needed to reach the desired drought period pumping capacity. In addition to the need for collecting operational data to determine the pumping capacity of the 13 new wells, the Daly City Recycled Wate r
Expansion Project proposes to serve recycled water to existing irrigated properties (gold courses and cemeteries) in the Colma area for irrigation use. Replacing groundwater with recycled water fo r irrigation use will decrease or eliminate the cemeteries’ use of the aquifer, creating more in lieu storage in the aquifer for water supply use. The SFPUC will identify potential benefits to the aquifer resulting from the Daly City Recycled Water Expansion Proj ect during project planning and design, as well as monitor operation of the project. Given the considerations noted above, the SFPUC modified the scope of Phase 2 in 2018 to install up to three (3) test wells (Ludeman North, Ludeman South, and Centennial 38 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) Trail), complete the South San Francisco Main well and pipeline, and complete other Phase 1 scope items, including chemical system monitoring, sampli ng, and storage at various sites. The test wells will allow for determination as to whether the identified sites could be viable production wells, and will provide valuable information related to water quality and potential pumping capacities that can be used for future planning and decision making. The test wells would not be converted to production wells at this time. Proceeding with these changes to Phase 2 will allow all 13 new Phase 1 RGWSR wells to be operated to gain experience and insight into the pumping capacities of each individual well in addition to how the wells work in combination with each other and existing municipal and irrigation wells. Staf f
will gain valuable experience regarding the relationship of RGWSR drought year pumping to the management of the groundwater basin. Operational experience will allow refinement of the modelled dry year water supply yield of the RGWSR proj ect. The changes to RGWSR Phase 2 also allows fo r
the collection of test well data at up to 3 locations for use in future planning if the operational experience with the 13 wells shows the need for more pumping capacity. This option also allows for the basin effects of the Daly City Recycled Water Expansion Project to be identified and may provide greater flexibility in the future to utilize the basin for water supply.
The approved scope for the RGWSR remains the same as approved in April 2018. However, since 2018 several scope refinements and some additions have been required for successful implementation of the project. Two out of three of the proposed test wells, Ludeman North and Centennial Trail, were installed. The third well, Ludeman South, was not built due to siting and constructability issues. The initial test results from the two test wells indicated that the combined yield of the two wells might be up to 0.6MGD. Based on the relatively low yield from both locations and additional costs required to upsize the Millbrae treatment facility in order to accept and treat these additional flows, it was decided that the test wells would not be converted to production wells at this time. However, these wells will provide valuable information related to water quality and potential pumping capacities that can be used for future planning and decision making.
Below are the Phase 1 modifications and additional work that increased the contract cost for the Phase 1 construction contract:
• Several modifications resulted during the installati on of the sodium hydroxi de treatment systems (fo r
pH control):
1. Potential water quality issues were anticipated in blending groundwater with distribution system water at two of the well stations that were planned to connect to Daly City’s and Cal Water’s systems; these two well stations were subsequently returned to the SFPUC and were connected to the SFPUC’s water system. Sodium hydroxide systems needed to be added for these two wells in order to raise the pH to be consistent with SFPUC’s water quality.
2. At five of the well stations, to prevent potential scaling and plugging of the groundwater pipeline afte r
sodium hydroxide addition, modifications to the chemical injection system s were made to improve mixing by moving the injection point closer to the transmission line.
3. Miscellaneous modifications were implemented including addition of chemical piping double-containment systems; retrofits to the chem ical rooms to accommodate the revised sodium hydroxide injection systems; restoration of landscape and hardscape; and installation of new fencing at several well stations.
• During construction, the decision was made to change the ammonia chemical (used to create chloramine for disinfection) from aqueous ammonia to liquid ammonium sulfate, which has been found to be much safer for worker handling. This change required revisions to engineering, operational, and maintenance requirements and documents; revisions to the application for the conditional Division o f
Drinking Water permit; and modifications to the chemical metering pumps, chemical piping and feed systems, and programming and controls systems.
• Seven (7) remote water quality analyzer stations were installed to replace manual water sample stations in order to collect real time data needed for water quality compliance at key monitoring point locations.
• Poor pump performance at three locations was investigated and found to be due to internal corrosion and/or presence of a foreign object. The modifications to correct performance issues included 39 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) investigations and forensic testing, installation of cathodic protection systems, replacement of damaged well column pipes and shafts, and well rehabilitation.
• Modification to the existing access road through Bay Area Rapid Transit’s (BART’s) right of way into one of the well stations was required to accommodate the turning radius of chemical delivery trucks and Fire Department emergency vehicles. The acquisition of the access permit from BART was significantly delayed while easement negotiations were ongoing. Additionally, Town of Colma required changes to the access design for traffic control requirements.
10015289 - Sunset Reservoir - North Basin (Completed)
This project is 100% complete and has been closed out. The project primarily consists of:
• Seismic rehabilitation, which includes stabilization of the soil dam embankment; a retrofit of the walls and roof using seismic joints, shear walls, diagonal bracing, and struts; and foundation improvements. • General rehabilitation, which includes repairs of deteriorated concrete, replacement of part of the reservoir lining material, replacement of the inlet piping, installation of security fencing, landscaping upgrades, and other miscellaneous site improvements.
10015314 - University Mound Reservoir - North Basin (Completed) The project primarily consists of:
• Seismic rehabilitation of the reservoir walls and roof using seismic joints, shear walls, diagonal bracing, and struts and foundation improvements.
A geotechnical investigation was conducted that
verified that the reservoir embankments are not subject to seismically induced failure. • General rehabilitation, which includes repairs of deteriorated concrete; replacement of the reservoi r
lining material; replacement of the inlet/outlet, drain, and overflow piping; replacement of outlet and drain valves; landscaping upgrades and other miscellaneous site improvements.
SUPPORT PROJECTS
10015300 - System Security Upgrades (Completed)
The purpose of this project is to develop and integr ate security components at critical water system facilities including those identified in previous vulnerability assessments and to ensure that security functions such as deterrence, detection, assessment, delay, and response will be effective.
As part o f
this project, SFPUC Security has evaluated all WSIP projects. The project includes the identification o f all necessary security components including security fencing, intrusion detection, and vehicle barriers for applicable WSIP projects. The project provides for the necessary planning and design of these facilities, while the individual WSIP projects will fund the installation and construction of civil security work such as conduit lay out, fencing, gate installation. This project will however fund the furnishing and installing Access Control and Alarm Monitoring System (ACAMS) and Digital Video Surveillance System (DVSS) equipment, and necessary security systems.
10015334 - Programmatic EIR (Completed)
This project includes the preparation of a Programmatic Environmental Impact Report (PEIR) in compliance with the California Environmental Quality Act (CEQA). The WSIP establishes LOS goals and system performance objectives and includes a number of projects that will improve the Regional Water System in respect to water quality, seismic reliability, delivery reliability, and water supply to meet delivery needs through the year 2030. The PEIR will (1) identify and analyze, at a programmatic level, the potential environmental impacts of proposed system improvements, (2) describe and evaluate feasible alternatives to the proposed program, and (3) propose mitigation measures.
The PEIR was certified by the San Francisco Planning Commission on October 30, 2008. On that same day the SFPUC approved the WSIP Goals and Objectives and adopted the CEQA Findings, including a statement of overriding consideration and the Mitigation Monitoring and Reporting Program (MMRP).
40 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) 10015335 - Bioregional Habitat Restoration
The Bioregional Habitat Restoration project was created to provide a coordinated and consolidated approach to compensate for habitat impacts that may result from implementation of the WSIP projects in the San Joaquin, Sunol Valley, Bay Division, and Peninsula Regions of the SFPUC Regional Wate r
System. The previously approved scope of the Bi oregional Habitat Restoration project included projects to preserve, enhance, restore, or create approximately 2,350 acres of tidal marsh, vernal pools, white alder riparian forest, sycamore alluvial woodland, arroyo willow riparian habitat, oak woodland and savannah, sage scrub habitat, serpentine grasslands, coastal live oak woodland, annual grasslands, and oak riparian forest.
The project description includes development of compensation sites to preserve, enhance, restore, o r
create approximately 2,350 acres of tidal marsh, vernal pools, sycamore and oak riparian woodland, oak woodland and savannah, and serpentine and annual grasslands. The project includes design, environmental permitting, construction, cons truction management, maintenance and performance monitoring during a 3-year plant establishment period.
The wide variety of the types of impacts from WSIP projects resulted in the need for development of 18 compensation sites on SFPUC property and contracting with 7 property owners to secure compensation on property outside the Alameda and Peninsula watersheds. There are 7 compensation sites on SFPUC property in the Alameda watershed with an average size of 250 acres, demonstrating a significant commitment to the continued protection of species habitat.
Although the average size o f
the 11 Peninsula compensation sites is 15 acres, the projects have been strategically placed to best benefit the San Francisco garter snake and the fountain thistle. The increase in habitat compensation addresses the addition of mitigation for the fountain thistle and changes in the Calaveras Dam Replacement Project.
10015336 - Vegetation Restoration of WSIP Construction Sites (Completed) The purpose of this project is to provide maintenance, monitoring and reporting of onsite habitat restoration installed at the various WSIP construction sites after project construction work is completed.
10015337 - Long Term Mitigation Endowment
The scope of work and budget for this Long Term Mitigation Endowment was previously included and reported within the WSIP Regional project 10015335 Bioregional Habitat Restoration; however, the office of the City Controller has established a separate project, specific for this endowment fund in project 10015337 Long Term Mitigation Endowment.
This perpetual endowment fund was requested by the United States Army Corps of Engineers and California Department of Fish and Wildlife to provide a secure source of funds for the perpetual monitoring and maintenance of the Bioregional Habitat Restoration sites constructed in the SFPUC watershed.
10015342 - Watershed and Environmental Improvement Program (Completed) The Watershed and Environmental Improvement Pr ogram (WEIP) includes the comprehensive identification and protection of critical watershed lands and ecosystem restoration needs within the hydrologic boundaries of the Alameda Creek, Peninsula (San Mateo and Pilarcitos Creeks) and Tuolumne River watersheds, and prioritizes the protection and/or restoration of these lands. Projects under this program will protect source water quality, native species and their habitat; and identify critical watershed lands for protection by purchasi ng fee title and/or perpetual conservation easements.
The program also supports projects that enhance public awareness and provide education opportunities related to water quality, water supply, conservation, and environmental stewardship issues. These projects include construction of the proposed Alameda Creek Watershed Center and improved public access (e.g., trail connections) compatible with watershed management plans and policies.
Initially, specific projects were identified, in cluding the Repair or Replacement of Niles Gage and Watershed Road Management Plan and Improvements – both in the Alameda Creek watershed.
After
41 WSIP Quarterly Report Q1-FY2022-2023 (07/01/22 - 09/30/22) further research and planning, the program’s focus has shifted towards permanently protecting Alameda Creek watershed lands through conservation easements and/or fee title purchase of property from willing landowners and providing education opportuni ties that will further the goals of the Wate r
Enterprise Environmental Stewardship Policy. Opportunities that are consistent with the WEIP description and purpose in the Peninsula and Tuolumne watersheds will be considered as well. 42 Project Name Start Finish
Regional Improvement Projects 31-Mar-00 01-Feb-27
San Joaquin Region 01-Jul-02 31-Mar-21
CUW36401 Lawrence Livermore Water Quality Im 02-Feb-04 31-Jul-13 CUW37301 San Joaquin Pipeline System 19-Aug-02 31-Mar-16 CUW37302 Rehabilitation of Existing San Joaquin 03-Jul-06 31-Oct-14 CUW38401 T esla Treatment Facility 01-Jul-02 30-Jan-15 CUW38701 T esla Portal Disinfection Station 01-Jul-02 29-Jun-07 CUWSJI0101 WSIP Closeout - San Joaquin 20-Jun-16 31-Mar-21 Sunol Valley Region 19-Dec-01 18-Jun-24
CUW35201 Alameda Creek Recapture Project 30-Sep-03 18-Jun-24 CUW35501 Standby Power Facilities - Various Loc 11-Jul-02 22-Dec-10 CUW35901 New Irvington Tunnel 19-Dec-01 31-Mar-18
CUW35902 Alameda Siphon #4 19-Dec-01 28-Jun-13
CUW37001 Pipeline Repair & Readiness Improve 21-Apr-03 16-Apr-09 CUW37401 Calaveras Dam Replacement 03-Sep-02 31-Mar-22 CUW37402 Calaveras Reservoir Upgrades 19-Nov-03 28-Jul-06 CUW37403 San Antonio Backup Pipeline 03-Sep-02 30-Jun-16 CUW38101 SVWTP Expansion & Treated Water R 22-Apr-05 31-Oct-14 CUW38102 SVWTP Calaveras Road 01-Feb-07 14-Dec-07
CUW38201 SVWTP Treated Water Reservoir 15-Sep-03 02-Mar-07 CUW38601 San Antonio Pump Station Upgrade 01-Jul-04 29-Jun-12 CUWSVI0101 WSIP Closeout - Sunol V alley 01-Jul-16 30-Jun-22 Bay Division Region 19-Dec-01 31-Mar-21
CUW35301 BDPL Nos. 3 & 4 Crossover/Isolation 06-Jan-03 31-Jul-09 CUW35302 Seismic Upgrade of BDPL Nos. 3 & 4 22-Oct-04 30-Jul-18 CUW36301 SCADA System - Phase II 22-Apr-05 28-May-13
CUW36801 BDPL Reliability Upgrade / Tunnel 19-Dec-01 30-Aug-16 CUW36802 BDPL Reliability Upgrade - Pipeline 19-Dec-01 31-Mar-16 CUW36803 BDPL Reliability Upgrade - Relocation 24-Apr-06 28-May-10 CUW38001 BDPL Nos. 3 & 4 Crossovers 17-Feb-04 30-Jun-14 CUW38901 SFPUC/EBMUD Intertie 24-Jun-02 20-Mar-14
CUW39301 BDPL No. 4 Condition Assessment PC 04-Aug-06 06-Feb-09 CUWBDP0101 WSIP Closeout - Bay Division 06-Jul-16 31-Mar-21 Peninsula Region 01-Nov-00 30-Dec-21
CUW35401 Lower Crystal Springs Dam Improvem 01-Nov-00 28-Dec-12 CUW35601 New Crystal Springs Bypass Tunnel 07-Jan-02 17-Aug-12 CUW35701 Adit Leak Repair - Crystal Springs/Cal 01-Apr-05 31-Jul-08 CUW36101 Pulgas Balancing - Inlet/Outlet Work 15-May-02 11-May-06 CUW36102 Pulgas Balancing - Discharge Channe 01-Apr-05 30-Jul-10 CUW36103 Pulgas Balancing - Structural Rehabili 03-Apr-06 28-Dec-12 CUW36104 Pulgas Balancing - Laguna Creek Sed 31-Mar-06 31-Dec-07 CUW36105 Pulgas Balancing - Modifications of th 02-Apr-07 20-Mar-13 CUW36501 Cross Connection Controls 01-Jul-03 30-Apr-09 CUW36601 HTWTP Short-T erm Improvements (D04-Sep-02 14-Nov-06 F F F F F FQ2 F F F FQ2 F F FQ1 F F F F F F F F F F F F F F F F FQ2 F F F F F F F F F F F F F F F F F F FY2013 FY2014 FY2015 FY2016 FY2017 FY2018 FY2019 FY2020 FY2021 FY2022 FY2023 FY2024 APPENDIX B. WSIP Approved Project-Level Schedule
Project Management
Planning
Environmental
Design
Right-of-W ay
Bid & Award
Construction Management
Construction
Closeout
Program Management
43 Project Name Start Finish
CUW36602 HTWTP Short-T erm Improvements - R 12-Jan-06 22-Feb-08 CUW36603 HTWTP Short-T erm Improvements - C 03-Jul-06 28-Jul-10 CUW36701 HTWTP Long-T erm Improvements 01-Jul-03 30-Dec-16 CUW36702 Peninsula Pipelines Seismic Upgrade 01-Jul-09 06-Jul-16 CUW36901 Capuchino Valve Lot Improvements 22-Apr-05 19-Aug-08 CUW37101 Crystal Springs/San Andreas Transmis 18-Aug-03 30-Jun-15 CUW37801 Crystal Springs Pipeline No. 2 Replace 15-Jan-04 31-Dec-14 CUW37901 San Andreas Pipeline No. 3 Installatio 15-Jan-04 30-Aug-12 CUW39101 Baden and San Pedro Valve Lots Imp 03-Oct-05 29-Mar-13 CUWPWI0101 WSIP Closeout - Peninsula 01-Jul-16 30-Dec-21 San Francisco Regional Region 31-Mar-00 01-Feb-27
CUW30103 Regional Groundwater Storage and R 01-Jun-03 01-Feb-27 CUW35801 Sunset Reservoir - North Basin 31-Mar-00 10-Sep-10 CUW37201 University Mound Reservoir - North Ba 24-Oct-05 29-Mar-13 Support Projects 13-Apr-04 01-Feb-27
CUW36302 System Security Upgrades 07-Jan-06 19-Apr-19
CUW38801 Programmatic EIR 13-Apr-04 30-Jun-09
CUW38802 Bioregional Habitat Restoration 06-Sep-06 01-Oct-24 CUW38803 Vegetation Restoration of WSIP Cons 02-Jan-13 30-Jun-16 CUW38804 Long T erm Mitigation Endowment 05-Mar-14 01-Oct-24 CUW39201 Program Management Project 01-Aug-05 01-Feb-27 CUW39401 Watershed and Environmental Improv 02-Jan-07 30-Jun-22 F F F F F FQ2 F F F FQ2 F F FQ1 F F F F F F F F F F F F F F F F FQ2 F F F F F F F F F F F F F F F F F F FY2013 FY2014 FY2015 FY2016 FY2017 FY2018 FY2019 FY2020 FY2021 FY2022 FY2023 FY2024 APPENDIX B. WSIP Approved Project-Level Schedule
Project Management
Planning
Environmental
Design
Right-of-W ay
Bid & Award
Construction Management
Construction
Closeout
Program Management
44 WSIP Quarterly Report Q1-FY2022-2023 ( 07/01/22 – 09/30/22) APPENDIX C. LIST OF ACRONYMS
BDPL Bay Division Pipeline
BHR Bioregional Habitat Restoration
BLS Bureau of Labor Statistics
CDRP Calaveras Dam Replacement Project
CEQA California Environmental Quality Act
CIP Capital Improvement Program
CM Construction Management
CO Change Order
COVID-19 Coronavirus Disease of 2019
DB Design, Build
EBMUD East Bay Municipal Utility District
EIR Environmental Impact Report
FC Final Completion
FTE Full-Time Equivalent
FY Fiscal Year
HH Hetch Hetchy
HTWTP Harry Tracy Water Treatment Plant
JOC Job Order Contract
LOS Levels of Service
N/A Not Applicable
NTP Notice to Proceed
PCCP Pre-stressed Concrete Cylinder Pipe
PG&E Pacific Gas and Electric Company
ROW Right-of-Way
SAPL San Antonio Pipeline
SCADA Supervisory Control and Data Acquisition
SFPUC San Francisco Public Utilities Commission
SJPL San Joaquin Pipeline
SQS Supplier Quality Surveillance
SVWTP Sunol Valley Water Treatment Plant
TWR Treated Water Reservoir
UM University Mound
UV Ultra Violet
WSIP Water System Improvement Program
45 WSIP Quarterly Report Q1-FY2022-2023 ( 07/01/22 – 09/30/22)
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