Hetch Hetchy Capital Improvement Program Quarterly Report — CleanPowerSF Sfpuc Commission, September 13, 2022

1 Hetch Hetchy Capital Improvement Program
Q4 | FY 2021
–
2022
September 13, 2022
Katie Miller, Director
Water Capital Programs
Infrastructure Division
Planning (7),
$231M
Design (1),
$9M
Bid & Award
(1), $38M
Construction (4),
$280M
Closeout (1),
$23M
Completed (0),
$0
Multiple Phase (2),
$166M
Not
Initiated (1),
$16M
$763M
(17 Projects)
* Excluded 3 Project
Development Projects ($44M)
Project Count by Phase*
HCIP Program Status (as of June 2022)
29%
% Complete
Expenditures

HCIP Program Cost Summary
(from Table 3)
3 Program Name
Expenditures
to Date
($Million)
Current
Approved
Budget
($Million)
Current
Forecasted
Cost ($Million)
Cost
Variance
($Million)
New
Variance
During Q3
($Million)
Water Infrastructure $11 $110 $153 ($44) -
Power Infrastructure $64 $204 $204 - -
Joint Infrastructure $98 $494 $495 ($2) -
Overall HCIP $174 $807 $853 ($46) -
Mountain Tunnel Improvements
4 Progress and Status:
• Procurement and prep for 2023 winter
shutdown expedited and monitored.
• Excavation and lining at Priest Flow
Control Facility:
• Flow Control Facility shaft (graphic and
photo) is 100% complete.
• Bypass Tunnels (graphic) and Priest Adit
Access Tunnel are 90% complete.
• Road access improvements:
• 80% complete at Priest Reservoir
(Rickson Road);
• Continuing at Adit 8/9, Adit 5/6, and South
Fork Road.

Approved Budget: $238.2M
Forecast Completion: June 2027
Current Phase: Construction
Expended to Date: $78.0M
Variances:
• $0
• 0 days
Flow Control Facility Shaft –
(graphic and photo)
Moccasin Powerhouse (MPH) and
Generator Step Up Transformer (GSU)
Rehabilitation
5 Progress and Status:

Subproject A (Step Up Transformers):
• New Generator Step Up (GSU) 1 transformer
was partially utilized in Q4.
• GSU 2 being manufactured and tested.

Subproject B (Generators Rewind):
• 100% design completed in Q4 for generator
rewind, relay protection, and control panels.
• Construction anticipated to start August 2022.

Subproject C (Moccasin Powerhouse
Systems Upgrade):

Planning Phase kickoff meeting and Site Walk
completed in June.

Approved Budget: $66.7M
Forecast Completion: Dec 2027
Current Phase: Multiple Phases
Expended to Date: $15.1M
Variances:
• $0
• 234 days over
Generator Winding Bars
being formed in factory
San Joaquin Pipelines (SJPL) Valve and
Safe Entry Improvement
6 Progress and Status:

Phase 1A, SJPL No. 2 Tesla and Oakdale
Entry Improvements:
• May 16 -Construction contract Notice to
Proceed.

Phase 1B, SJPL Nos. 3 & 4 Tesla and
Oakdale Entry Improvements:
• April 21 - construction contract advertised.

Phase 2 Entry Improvements Pelican,
Roselle, Emery:
• Design phase commenced Q4.

Phase 3 Entry Improvements Tesla Surge
Tower (design drawing pictured):
• 95% design completed.

Approved Budget: $98.9M
Forecast Completion: March 2028
Current Phase: Multiple Phases
Expended to Date: $4.7M
Variances:
• $43.8M (30.7%) over
• 0 days
Proposed Tesla Surge Tower (Phase 3)
Transmission Lines 7/8 Upgrades
7 Progress and Status:
• Construction contract awarded on
June 28.
• Lowest responsive bid about $4M
lower than Engineer’s Estimate at
about $24M.
• Notice to Proceed anticipated by
October 2022.

Approved Budget: $38.0M
Forecast Completion: January 2025
Current Phase: Bid and Award
Expended to Date: $3.3M
Variances:
• $0
• 0 days
Transmission Line 7/8 Tower 508S
QUESTIONS?

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525 Golden Gate Avenue, 13th Floor
San Francisco, CA 94102
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TTY 415.554.3488

DATE: September 6, 2022

TO: Commissioner Anson Moran, President
Commissioner Newsha Ajami, Vice President
Commissioner Sophie Maxwell
Commissioner Tim Paulson

FROM: Dennis J. Herrera, General Manager

RE: Hetch Hetchy Capital Improvement Program Quarterly Report 4 th Quarter / Fiscal Year 2021-2022

Enclosed please find the Hetch Hetchy Capital Improvement Program (HCIP) Quarterly Report for the 4 th Quarter (Q4) of Fiscal Year (FY) 2021- 2022. The primary intent of the report is to provide the Commission, stakeholders, and the public with a status summ ary of the HCIP based on data for the period of April 1, 2022 to June 30, 2022.

Attachment

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QUARTERLY REPORT
Hetch Hetchy Capital Improvement Program
April 2022 – June 2022
Published: September 6, 2022
DRAFT

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i
Q4-FY2021-2022 (04/01/22– 06/30/22)

EXECUTIVE SUMMARY
This quarterly report provides a summary update on the Hetch Hetchy Capital Improvement Program (HCIP) that is part of the larger Hetch Hetchy Water Capital Improvemen t Program. The primary intent of the report is to provide the Commission, stakeholders, and the public with a status summary of the HCIP based on data for the period of April 1, 2022 to June 30, 2022.

Starting with the HCIP in the first quarter (Q1) of fiscal year 2022 (FY22), the projects of the HCIP and each of their scopes, budgets, and schedules, match the Commission’s approved FY21-30 10-Year Capital Plan, specifically the FY21-30 10-Year Hetch Hetchy Water Capital Improvement Program (10- Year CIP), and serve as th
e FY22 baseline for the HCIP.

In this Q4 re
port, the forecasts for the HCIP projects’ scopes, costs, and schedules match the FY23-32 10-Year CIP that was presented to the Commission on February 8, 2022. Going forward, proposed changes to the approved projects and their baseline scopes, schedules, and budgets will continue to be presented for review and approval as part of th e 10-Year CIP that is up dated every two years and approved by the SFPUC Commission. The proposed revisions to the program will become the new baseline for project scopes, schedules, and budgets in the beginning of the new fiscal year, July 1 of each bi-annual year, following approval by both SFPUC Commission and th e Board of Supervisors (BOS).

Program Current Status:

Overall steady progress continued on the program with very few changes to forecasted scopes schedules and budgets. As of the end of the reporting period, the status of the 17 HCIP projects (excluding the Project Development (PD) accounts) is as follows: one (1) project not initiated, nine (9) projects in planning, desi
gn, or bid & award, four (4) projects in construction, two (2) projects that are multiple phases, and one (1) project in closeout.

Planning (7)
$231M
Design (1)
$9M
Bid & Award
(1) $38M
Construction
(4) $280M
Closeout (1)
$23M
Completed (0)
$0 Multiple
Phase (2)
$166M
Not Initiated
(1) $16M
Approved Budget for Projects in Each Phase

ii
Hetch Hetchy Capital Improvement Program Quarterly Report The following Tables provide a high-level summary of the cost and schedule status for this program (including the 3 PD accounts). The forecasted overru ns in projects’ cost and schedule presented here, as noted above, match the 10 – Year CIP for FY 23-32 which was presented to the Commission and approved during the quarter, on February 8, 2022. All project variances occurred in the first quarter (Q1) of fiscal year 2021-2022, and there have been no new project cost or schedule variances forecasted during either this or last quarter.

* Negative number reflects cost increases since last quarter, and positive number reflects cost reduction since last quarter.

Program Key Updates:

The key updates for the HCIP include:

 For the SJPL Tesla Valve Replacement project, the new 66-inch diameter butterfly valve and the new 24-inch diameter butterfly valve have been in service without issues since last quarter.

In this quarter, the contractor completed punch- list items, including the repair of the exterior coating of the 24-inch butterfly valve, and all remaining field work. The contractor is anticipated to submit as-built drawings and achieve final completion in July 2022.  For the SJPL Valve and Safe Entry Improvements project, for Phase 1A, the Notice to Proceed (NTP) of Construction Contract HH-1005 was issued on May 6. For Phase 1B, Construction Contract HH-1006 was advertised on April 21; the Engineer’s Estimate was $14M. The bids will Table A. Program Cost Summary
Program

Expenditures
To Date
($ Million)
(A)
Current
Approved
Budget
($ Million)
(B)
Q4/FY21-22
Forecasted
Costs
($ Million)
(C)

Cost
Variance
($ Million)
(D = B - C)
Cost
Variance
Over
Reporting
Period *
($ Million)
(E)
Program Total $174.51 $807.30 $852.81 ($45.51) -
Table B. Current Approved vs. Current Forecast Schedule Dates

Program
Current
Approved
Project
Start
Actual
Start
Current
Approved
Completion
Current
Forecast
Completion
Schedule
Variance
(Months)
Overall
HCIP Program 10/03/11 10/03/11  05/25/37 10/30/35 18.8 Early

iii
Q4-FY2021-2022 (04/01/22– 06/30/22)
be opened on July 7. For Phase 2, the design has started. For Phase 3, the 95% design milestone was achieved this quarter.
 For the Moccasin Powerhouse Bypass Upgrades project, the project team issued NTP for Planning Phase Conceptual Engineering Report (CER) in May 2022. The preferred alternative is to move the bypass system to a location outside of the powerhouse and north of the Moccasin penstocks. The Topographical and Ut ility Survey has been scheduled for August 2022. The team is evaluating potentially higher construction cost for the preferred alternative.  For Moccasin Powerhouse (MPH) and Generator Step-Up (GSU) Rehabilitation project, subproject A (HH-1003R, MPH GSU Transformer In stallation), partial utilization of the new Delta Star GSU1 transformer was achieved in April 2022. For subproject B (DB-121R2, MPH Generators Rehabilitation), the 100% design dr awings for miscellaneous generator rewind items and the Relay Protection and Control Panels were received. Construction Notice to Proceed (NTP) is scheduled for August 2022. Fo r subproject C (MPH Systems Upgrades), the Planning Phase kickoff meeting was held in May 2022 and the Site Walk was completed in June 2022.
 For Transmission Lines 7/8 Upgrades project, progress was achieved in the Bid and Award phase with the formal award of the project by San Francisco Public Utilities Commissioners at the June 28
th, 2022 meeting. The Engineers Estimate was stated at $28M and the lowest responsive bidder, Wilson Utilities Construc tion Company, was awarded the project at $23,980,141. The project is anticipated to issue Noti ce to Proceed for construction no later than October 1, 2022.
 For the O’Shaughnessy Dam Access & Drainage Improvements project, Substantial Completion was established on May 20. The Cont ractor is developing final as-builts, and the project team is completing the construction contract closeout.  For the O’Shaughnessy Dam Outlet Works Phase 1 project, work continues on preparation of a progressive-design-build specification and bid pa ckage for the design and construction of the bulkhead. Subproject B (Access & Drainage): Th e plan and Job Order Contract for a closed- circuit television (CCTV) inspection of the existing dam drain system was finalized; the inspection will be performed in early July. Subproject C (Instream Flow Release Valve Replacement): The Needs Assessment Report/Alt ernatives Analysis Report (NAR/AAR) was completed and approved by the Technical Steer ing Committee (TSC) on June 2, 2022. Work began on the Conceptual Engineering Report (CER). The environmental assessment for the proposed project continues.
 For the Mountain Tunnel Improvement project, progress included completing the excavation and initial lining of the Flow Control Facility (FCF) Shaft and 90% completion of the excavation and initial lining of the Upstream and Downst ream Bypass Tunnels. The 1,000-foot Priest Adit tunnel excavation and initial lining achieved a completion rate of 90%. Key material items needed for Outage No. 2 are being fabricated and include large diameter steel pipes for the Bypass Tunnels and four double-disc knife-gate valves required for the bottom of the FCF shaft, along with the steel bulkhead door required for the Priest Adit tunnel. Road improvement work along Rickson Road at the Priest Reservoir site is approximately 80%

iv
Hetch Hetchy Capital Improvement Program Quarterly Report complete. Safety and road improvement work continues at Adit 8/9, Adit 5/6 and South Fork Roads. Planning and risk management for Outage No. 2 is taking place on a continuous basis.  For the Bridge Replacement project, on th e Lake Eleanor Dam Bridge subproject, the engineering consultant perfor med additional analyses to a ddress findings from DSOD’s structural analysis for the capacity of the existing structure and the proposed alternatives. For the O’Shaughnessy Adit Access Bridge subproject , the draft Alternatives Analysis Report was submitted on May 16
th and presented to SFPUC management on June 17 th. The project team is scheduled to present the selected alternativ es to the Technical Steering Committee for approval on July 7th.
 The Canyon Tunnel Rehabilitation project restarted during this quarter after being placed on hold in 2016 due to need for boundary correction from the Bureau of Land Management (BLM). A cost reimbursement agreement between the SFPUC and BLM was signed and the Right of Way application was submitted to BLM for review during the quarter. Notice to Proceed was issued on April 21st for the professi onal service consultant to support the project during planning, design, and construction phases. A site visit to evaluate dry side of the plug and observe exposed rock within the Hetch Hetchy Adit was held on May 4 th, followed by a
workshop to discuss needs and schedule with HHWP on June 1st.

TABLE OF CONTENTS
HETCH HETCHY WATER AND POWER (HHWP) – WATER

DIVISION CAPITAL IMPROVEMENT PROGRAMS

INTRODUCTION

HETCH HETCHY CAPITAL IMPROVEMENT PROGRAM (HCIP)

1. Program Description

2. Program Status

3. Program Cost Summary

4. Program Schedule Summary

5. Budget and Schedule Trend Summary

6. Project Performance Summary

7. Project Status Report

8. On-Going Construction

9. Projects in Closeout

10. Completed Projects

APPENDICES
A. Project Descriptions
B. Approved Project Level Schedules/Budgets
C. List of Acronyms

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HETCH HETCHY WATER AND POWER (HHWP)–

WATER DIVISION CAPITAL IMPROVEMENT PROGRAMS

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Q4-FY2021-2022 (04/01/22 – 06/30/22)

INTRODUCTION
The Hetch Hetchy Water and Power (HHWP)
Water Division is the division responsible for
operating, managing, and maintaining the
upcountry HHWP system and facilities. This
includes water facilities that are part of the
Regional Water System from Hetch Hetchy
Reservoir, located in Yosemite National Park, to
Alameda East Portal, located in Sunol Valley,
and power facilities located from Cherry Power
Tunnel to City of Newark. The HHWP Water
Division operates, manages, and maintains
three impoundment reservoirs, three regulating
reservoirs, four powerhouses, one switchyard,
three substations, 170 miles of pipeline and
tunnels, almost 50 miles of paved road, and
over 160 miles of transmission lines, watershed
land, and right-of-way property. The Hetch
Hetchy water supply that the HHWP Water
Division manages provides 85 percent of the
San Francisco Public Utilities Commission
(SFPUC) water supply for 2.7 million
residential, commercial, and industrial
customers in Alameda, Santa Clara, San Mateo,
and San Francisco counties. On average,
HHWP Water Division generates about 1,650
gigawatt hours (GWH) of clean hydro-
generated power annually. A majority of
HHWP staff is based in Moccasin, CA, which is
140 miles east of San Francisco.

The HHWP Water Division’s capital
improvement programs are divided into two
programs: Hetch Hetchy Capital Improvement
Program (HCIP) and Renewal and Replacement
Program (R&R). This report provides a
quarterly status update on the HCIP, a group of
capital improvement projects that are greater
than $5M in value and have been approved by
the Commission as part of the SFPUC’s 10-Year
Capital Improvement Program (CIP). The status
of the Hetch Hetchy R&R Program is reported
annually in the Annual Report on Water
Enterprise-Managed Capital Improvement
Projects.

The map below shows the location of the assets
and facilities associated with HHWP.

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HETCH HETCHY CAPITAL IMPROVEMENT PROGRAM (HCIP)

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1 Q4-FY2021-2022 (04/01/22 – 06/30/22)

1. PROGRAM DESCRIPTION
The HCIP is a multi-year group of capital
projects that upgrades existing and provides
new infrastructure to meet the challenges of
today and the future. These projects deliver
improvements that enhance the SFPUC’s ability
to provide reliable, affordable, high quality
water to its 2.7 million customers in an
environmentally sustainable manner. The goals
are to 1) provide capital improvements needed
to cost-effectively ensure that water quality,
seismic reliability, delivery reliability, and
water supply objectives established for the
Regional Water System facilities managed by
HHWP are met, while 2) optimizing the
benefits of HHWP power facilities operations.

Ongoing development of the HCIP will sustain
the Regional Water System’s status as an
unfiltered water source and a gravity-driven
system.

The scope of HCIP is divided into three major
project types: Water, Power, and Joint. The
Water sub-program includes only asset
improvements benefiting the SFPUC’s water
customers. The Power sub-program includes
only asset improvements used to generate
environmentally friendly hydroelectric energy.

The Joint sub-program includes projects for
assets that are used for both water delivery and
power generation. In addition, projects in each
sub-program of the HCIP have been further
organized by asset type consisting of the
following:
 Buildings – projects to provide safe,
updated, and code compliant work
spaces.
 Dams & Reservoirs – projects to
improve assets used for storage and
delivery of water to SFPUC customers,
as well as for water storage for power
generation.
 Mountain Tunnel – projects to address
deficiencies with the Mountain Tunnel,
a critical, non-redundant link in the
Hetch Hetchy and Regional Water
System that conveys water from
Kirkwood Powerhouse to Priest
Reservoir.
 Powerhouses – projects to improve
facilities at the Holm, Kirkwood, and
Moccasin powerhouses.
 Roads & Bridges – projects intended to
replace bridges that are utilized to
access HHWP assets.
 Switchyard & Substations – projects to
meet operational objectives for power,
including reliability, regulatory
compliance, and sustainability.
 Tunnels – projects to repair tunnels
along the HHWP system (other than
Mountain Tunnel).
 Water Conveyance – projects to enhance
the reliability of water delivery through
pipelines and penstocks, allowing for
both delivery of water to SFPUC
customers and delivery of water to
powerhouses for power generation.

2. PROGRAM STATUS
This fourth (4 th) quarter (Q4) report for Fiscal
Year 2021-2022 (FY21-22) presents the progress
made on the HCIP between April 1, 2022 and
June 30, 2022. As announced in the first (1
st)
quarter report for FY21-22, project scopes,
budgets and schedules in the Commission’s
approved 10-Year Capital Plan for FY21-30,
approved by the SFPUC Commission on
February 11, 2020, serve as the approved
baseline herein for comparison to current
program and project scope, schedule, and
budget forecasts. This baseline for comparison
will remain the same until adoption of a new
10-Year CIP; the baseline will be updated with
the changes in the adopted CIP at the start of
the fiscal year following adoption.

There are seventeen (17) projects in the HCIP
together with (3) project development (PD)
accounts for program-level expenditures for
each of the Water, Power, and Joint Programs.

A description of each project and of each
project development account is provided in the
Appendix A of this Report.

2 Hetch Hetchy Capital Improvement Program Quarterly Report The accrued PD expenditures are included in
the Cost Summary in Table 3 in order to give an
accurate report of the overall HCIP cost
performance.

Figure 2.1 shows the total Approved Budget for
all seventeen (17) projects in each phase of the
program as of June 30, 2022 (PD accounts do
not have phases and are not included in Figure

2.1). The number of projects currently in each
phase is shown in parentheses.

Figure 2.2 shows the total number of projects in
the following stages as of June 30, 2022: Pre-
construction, Construction, and Post-
construction.

Figure 2.3 summarizes the environmental
review status of the HCIP projects as of June 30,
2022. Environmental review is performed for
projects under California Environmental
Quality Act (CEQA).

3. PROGRAM COST SUMMARY
Table 3 provides an overall cost summary of the
approved 17 HCIP projects and 3 HCIP PD
accounts at the end of the quarter. It shows the
Expenditures to Date , Current Approved
Budget, Current Forecast Cost, the Cost
Variance between the Approved and Forecast
Costs, and the Cost Variance Over the
Reporting Period. The Current Approved
Budget for the HCIP under the FY21-30 CIP is
$807.30 million, while the HCIP Q4FY21-22
Forecasted Cost is $852.81 million, which is
$45.51 million over the Approved Budget. This
is the same program Cost Variance since the
first quarter FY2021/2022.

Figure 2.2 Number of Projects in Pre-construction,
Construction, and Post-Construction
Figure 2.1 Approved Budget for Projects in Each
Phase
Figure 2.3 Program Environmental Review

3 Q4-FY2021-2022 (04/01/22 – 06/30/22)
Table 3. Cost Summary
Subprograms

Expenditures
To Date
($ Million)
(A)
Current
Approved
Budget
($ Million)
(B)
Q4/FY21-22
Forecasted
Costs
($ Million)
(C)

Cost
Variance
($ Million)
(D = B - C)
Cost
Variance
Over
Reporting
Period *
($ Million)
(E )
Water Infrastructure $11.10 $109.53 $153.27 ($43.74) -
Water Conveyance (Water) $7.04 $102.66 $146.40 ($43.74) - Water Infrastructure Project
Development $4.06 $6.87 $6.87 - -
Power Infrastructure $64.40 $204.24 $204.24 - -
Powerhouse $36.18 $120.94 $120.94 - -
Switchyard & Substations (Power) $22.04 $34.25 $34.25 - - Transmission Lines $3.28 $37.97 $37.97 - -
Power Infrastructure Project
Development $2.90 $11.09 $11.09 - -
Joint Infrastructure $99.01 $493.52 $495.29 ($1.77) -
Water Conveyance (Joint) $5.63 $47.25 $47.25 - -
Dams & Reservoirs (Joint) $5.59 $120.19 $136.88 ($16.69) - Mountain Tunnel $78.87 $238.22 $238.22 - -
Roads & Bridges (Joint) $1.88 $44.29 $29.37 $14.92 - Tunnels (Joint) $0.70 $8.43 $8.43 - -
Utilities (Joint) $0.50 $8.79 $8.79 - -
Joint Infrastructure Project
Development $5.83 $26.34 $26.34 - -
Overall Program Total $174.51 $807.30 $852.81 ($45.51) - * Negative number reflects cost increases since last quarter, and positive number reflects cost reduction since last quarter.

The overall program negative Cost Variance of
$45.51M in Table 3 can be attributed to the
following factors, all of which were reported in
the first quarterly report for fiscal year 2021-
2022; there have been no new variances since
Q1 and none in this quarter:
• $43.74M negative variance is due to the
following Water Infrastructure project:
o The 10035575 San Joaquin Pipeline
(SJPL) Valve and Safe Entry
Improvements forecasted costs
increased by $43.74M.
• $1.77M negative variance is due to the
combined positive and negative
variances in the following Joint
Infrastructure projects:
o The 10032903 O’Shaughnessy Dam
(OSD) Outlet Works Phase I
forecasted cost increased by
$26.69M.
o The 10037351 Moccasin Dam
Long-Term Improvements
forecasted cost decreased by
$10.00M.
o The 10035086 Bridge Replacement
(4 Bridges) forecasted cost
decreased by $14.92M.

4 Hetch Hetchy Capital Improvement Program Quarterly Report

4. PROGRAM SCHEDULE SUMMARY
Figure 4 and Table 4 compare the FY21 – 30 CIP
Approved Schedule and the Current Forecast
Schedule for the HCIP. As shown in Table 4,
the overall HCIP is currently forecast to be
completed in October 2035, which is 18.8
Months before the Approved Completion date
of May 2037.

5. BUDGET AND SCHEDULE TREND SUMMARY
Starting with the Q1 FY21-22 Quarterly Report,
a revised report format includes a new Table 5,
titled Budget and Schedule Trend
Summary. This Table 5 contains all approved
HCIP projects that are active and in any of the
planning, design, bid and award, or
construction phases of the project. The table
excludes all Project Development accounts, as
well as any projects that are either Not-
Initiated, On-Hold, in Closeout or Completed.

During this Quarter (Q4 FY21-22), the following
major milestones were reached
 Bid Award and Notice to Proceed (NTP)
for SJPL Valve and Safe Entry
Improvement Phase 1A (HH-1005)
 95% Design for Phase 2 (under DB-
121R2) of Moccasin Powerhouse and
Generator Step-Up Unit (GSU)
Rehabilitation
 35% Design for Moccasin Wastewater
Treatment Plant

Table 4. FY21-30 CIP Approved vs. Current Forecast Schedule Dates

Sub-Program
2021
Approved
Project
Start
Actual
Start
2021
Approved
Completion
Current
Forecast
Completion
Schedule
Variance
(Months)
Water Infrastructure 03/26/12 03/26/12 06/30/31 06/28/30 12 Early Power Infrastructure 05/29/12 05/29/12 06/30/31 10/30/35 52 Joint Infrastructure 10/03/11 10/03/11 05/25/37 06/28/30 82.9 Early Overall
HCIP Projects 10/03/11 10/03/11 05/25/37 10/30/35 18.8 Early

All Costs are shown in million
Approved
Budget
Approved
Completion Forecasted Cost Forecasted
Completion Forecasted Cost Forecasted
Completion Forecasted Cost Forecasted
Completion Forecasted Cost Forecasted
Completion Forecasted Cost Forecasted
Completion Forecasted Cost Forecasted
Completion
abcdefghi jklm n
Water Infrastructure
$3.7 12/30/22 $7.4 06/28/24 $7.4 06/28/24 $7.4 06/28/24 $7.4 06/28/24 $3.7 12/30/22 $3.7 12/30/22 10035575 - SJPL Valve and Safe Entry Improvement
Phase 1A
Phase 1B
Phase 2
Phase 3
Power Infrastructure
$15.0 12/01/27 $15.0 12/01/27 TBD TBD TBD TBD TBD TBD TBD TBD $15.0 12/01/27 10014086 - Moccasin Powerhouse and GSU Rehabilitation
Phase 1
Phase 2
Phase 3
10014087 - Warnerville Substation Rehabilitation
Phase 1 (DB-127R)
Phase 2a
Phase 2b
$38.0 01/31/25 $38.0 01/31/25 $38.0 01/31/25 $38.0 01/31/25 $38.0 01/31/25 TBD TBD $38.0 01/31/25 Joint Infrastructure
$47.3 02/28/28 $13.2 12/31/24 TBD TBD TBD TBD TBD TBD TBD TBD $47.3 02/28/28 $4.0 02/28/23 $5.8 02/26/21 $5.8 02/26/21 $5.8 02/11/22 $5.8 12/16/22 $4.0 02/28/23 $4.0 02/28/23 10032903 - O'Shaughnessy Dam Outlet Works Phase I
3 Subproject A
Subproject B
Subproject C
Subproject D (Planning Only)
Subproject E (Planning Only)
$83.2 07/01/27 $83.2 07/01/27 TBD TBD TBD TBD TBD TBD TBD TBD $73.2 06/30/28 $11.9 07/01/27 $11.9 07/01/27 TBD TBD TBD TBD TBD TBD TBD TBD $11.9 06/30/27 Q4 - FY21-22
N/A (Subproject A),
N/A (Subproject B) &
02/07/23 (Subproject C)
10014115 - Cherry Dam Spillway - Short Term
Improvements
FY21-30 03/01/21 02/10/23 07/05/23 04/10/24 08/20/24 Q4 - FY21-22 10035721 - Transmission Lines 7/8 Upgrades
FY21-30 07/01/19
05/08/26 Q4 - FY21-22
05/22/23 (Subproject A),
09/19/23 (Subproject B) &
07/17/23 (Subproject C)FY21-30 02/01/18
09/30/21 (Subproject A),
Complete (Subproject B),
09/30/22 (Subproject C),
N/A (Subproject D) &
N/A (Subproject E)
N/A (Subproject A),
N/A (Subproject B) &
11/07/22 (Subproject C)
$21.2 $17.2 $47.909/16/25
09/27/21 Q4 - FY21-22
TBD TBD TBD $47.909/16/25 TBD TBD TBD
11/26/18 (Phase 1),
N/A (Phase 2a) &
02/03/25 (Phase 2b)
Q4 - FY21-22
11/25/26
10/03/18 $66.7 $66.7
10037351 - Moccasin Dam Long-Term Improvements3
FY21-30 05/03/21 12/30/22 07/21/23 12/31/24
10030758 - OSH Dam Access and Drainage Improvements
FY21-30 03/01/17 06/28/19 09/01/19 08/21/20
10014088 - Moccasin Penstock
FY21-30 12/11/18 04/21/23 10/16/23 06/10/24
Project Name
FY21-30 09/18/20
10036809 - Moccasin Powerhouse Bypass Upgrades
FY21-30 01/04/16
10035574 - SJPL Tesla Valves Replacement
04/15/25 Q4 - FY21-22
Q4 - FY21-2203/19/2112/07/202
$66.7 $66.7 $66.7 12/03/2712/03/2712/03/2712/03/27
03/04/20
04/13/27
02/29/16 (Phase 1),
01/18/21 (Phase 2a) &
01/03/23 (Phase 2b)
04/01/16 (Phase 1),
04/22/21 (Phase 2a) &
09/01/23 (Phase 2a)
12/24/16 (Phase 1),
08/16/21 (Phase2a) &
04/04/24 (Phase 2b)
FY21-30
09/01/15 (Phase 1),
7/01/20 (Phase 2a) &
01/01/21 (Phase 2b)
$27.2$34.2 11/25/26
07/01/25
Project Initiation
7/1/2019
$66.7 04/13/27 $18.0
FY21-30
$98.9 03/13/28 $95.3
Most Recent CIP Approved
Budget
FY21-30
$142.7 03/13/28$95.3 07/01/25 $98.9 03/13/28
Current StatusCER Awarded Construction135% Design 95% Design Q4 - FY21-22
11/17/20 04/06/21 Q4 - FY21-22
03/13/28
05/01/19 11/27/20 07/28/20
$142.7 03/13/28$142.7
Q4 - FY21-22
02/28/2511/07/22 02/24/23 12/26/23
05/14/21
07/29/19 (Phase 1),
10/01/19 (Phase 2) &
9/28/22 (Phase 3)
09/09/20 (Phase 1),
05/12/22 (Phase 2) &
03/29/24 (Phase 3)
06/07/21 (Phase 1),
08/08/22 (Phase 2) &
10/02/24 (Phase 3)
Q4 - FY21-22
07/14/21 (Phase 1A),
10/29/21 (Phase 1B),
02/15/23 (Phase 2) &
07/29/22 (Phase 3)
05/16/22 (Phase 1A),
10/28/22 (Phase 1B),
11/16/23 (Phase 2) &
04/09/23 (Phase 3)
Table 5. Budget and Schedule Trend Summary
$34.2 $34.2 $34.2 $34.2$24.3
09/16/2512/31/24
09/24/21 10/03/22
11/25/26 11/25/26 11/25/26 11/25/26
04/16/21
03/03/21 (Phase 1A),
05/28/21 (Phase 1B),
08/15/22 (Phase 2) &
12/30/21 (Phase 3)
5 All Costs are shown in million
Approved
Budget
Approved
Completion Forecasted Cost Forecasted
Completion Forecasted Cost Forecasted
Completion Forecasted Cost Forecasted
Completion Forecasted Cost Forecasted
Completion Forecasted Cost Forecasted
Completion Forecasted Cost Forecasted
Completion
abcdefghi jklm n
Project Name
Project Initiation Most Recent CIP Approved
Budget Current StatusCER Awarded Construction135% Design 95% Design $238.2 06/03/27 $114.0 12/30/21 $246.1 12/31/26 $238.2 12/31/26 $238.2 12/31/26 $238.2 06/03/27 $238.2 06/03/27 10035086 - Bridge Replacement (4 - Bridges)
Subproject 1
Subproject 2
$8.4 01/13/25 $0.5 06/30/16 TBD TBD $8.0 06/30/18 TBD TBD TBD TBD $8.4 09/01/26 $8.8 04/07/26 $8.8 04/07/26 - - $8.8 04/07/26 TBD TBD TBD TBD $8.8 04/07/26 Footnotes:

1. This represents forecast project cost and project completion date at the time of award of construction contract (or award o f CM/GC contracts/packages).

2. This represents the date the Design Criteria Report (DCR) was finalized for Transmission Lines 7/8 Upgrade project. CER was not required for the project.

3. This represents that Contract A will be doing Progressive Design Build during Construction. Contract B is in the process of finalizing the design. Contract D & E will not be doing CER.

4. This represents that the project started during the Design Phase. 6/03/24 (Subproject 1) &
01/12/24 (Subproject 2)
04/18/25 (Subproject 1) &
02/03/25 (Subproject 2)
TBD TBD $29.4 07/01/2705/25/37$44.3 $44.3 12/30/25 TBD TBD TBD TBD TBD 10014110 - Moccasin Wastewater Treatment Plant 4
FY21-30 01/03/22
FY21-30 02/27/20 Q4 - FY21-22
FY21-30 10/03/11 12/29/17 05/15/18 07/31/19 10/13/20 Q4 - FY21-22 - 04/29/22 12/30/22 11/27/23
10014108 - Canyon Tunnel Rehabilitation
10014114 - Mountain Tunnel Improvement Project
7/18/23 (Subproject 1) &
03/17/23 (Subproject 2)
Q4 - FY21-22
TBD
FY21-30
11/03/23 (Subproject 1) &
05/05/23 (Subproject 2)
02/03/14 03/06/23 03/30/16 12/14/23 12/17/24 Q4 - FY21-22 6 Hetch Hetchy Capital Improvement Program Quarterly Report Q4-FY2021-2022 (04/01/22 - 06/30/22)

6. PROJECT PERFORMANCE SUMMARY* All costs are shown in $1,000s as of 07/01/22 % Cost
Changes
(g = f/c)
(+++)
Current
Forecast
Completion
(j)
Current
Approved
Completion
(i)
(++)
Current
Forecast Cost
(d)
Cost
Variance
(f= c - d)
(+++)
Expenditures
To Date
(e)
Current
Approved
Budget
(c)
(++)
Active
Phase
(a)
()
Project Name
Schedule
Variance
(Days)
(k = i - j)
(+++)
CIP Project
Completion
Date
(h)
(+)
CIP
Approved
Budget
(b)
(+)
Water Infrastructure
Water Conveyance (Water)
10035574 - SJPL Tesla Valves
Replacement
CN $ 3,740 $ 2,317$ 3,740 - 12/30/22 12/30/2212/30/220%$ 3,740 0 10035575 - SJPL Valve and Safe Entry
Improvement
MP $ 98,924 $ 4,721$ 142,662 ($43,738) 03/13/28 03/13/2803/13/28-44%$ 98,924 0 Power Infrastructure
Powerhouse
10036809 - Moccasin Powerhouse Bypass
Upgrades
PL $ 15,007 $ 542$ 15,007 - 12/01/27 12/01/2712/01/270%$ 15,007 0 10014086 - Moccasin Powerhouse and
GSU Rehabilitation
MP $ 66,714 $ 15,115$ 66,714 - 04/13/27 12/03/2704/13/270%$ 66,714 (234) Switchyard & Substations (Power)
10014087 - Warnerville Substation
Rehabilitation
CN $ 34,248 $ 22,044$ 34,248 - 11/25/26 11/25/2611/25/260%$ 34,248 0 Transmission Lines
10035721 - Transmission Lines 7/8
Upgrades
BA $ 37,969 $ 3,276$ 37,969 - 01/31/25 01/31/2501/31/250%$ 37,969 0 (+) 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 or/ and additional contingencies on construction contracts.

Footnotes:
(+++) Negative number is reflecting cost overrun (Schedule Delay) and positive number is reflecting cost underrun (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.

PL DS
BA
Planning Desi gn
Bid & Award Multi ple-PhaseMPCN
 Phase Status Legend
Construction
 Exclude projects in closeout, completed, not initiated, on hold, deleted projects, and projects combined with other projects. 7 Hetch Hetchy Capital Improvement Program Quarterly Report Q4-FY2021-2022 (04/01/22 - 06/30/22) % Cost
Changes
(g = f/c)
(+++)
Current
Forecast
Completion
(j)
Current
Approved
Completion
(i)
(++)
Current
Forecast Cost
(d)
Cost
Variance
(f= c - d)
(+++)
Expenditures
To Date
(e)
Current
Approved
Budget
(c)
(++)
Active
Phase
(a)
()
Project Name
Schedule
Variance
(Days)
(k = i - j)
(+++)
CIP Project
Completion
Date
(h)
(+)
CIP
Approved
Budget
(b)
(+)
Joint Infrastructure
Water Conveyance (Joint)
10014088 - Moccasin Penstock PL $ 47,251 $ 5,633$ 47,251 - 02/28/28 02/28/2802/28/280%$ 47,251 0 Dams & Reservoirs (Joint)
10030758 - OSH Dam Access and
Drainage Improvements
CN $ 3,952 $ 2,600$ 3,952 - 02/28/23 02/28/2302/28/230%$ 3,952 0 10032903 - O'Shaughnessy Dam Outlet
Works Phase I
PL $ 21,206 $ 1,952$ 47,894 ($26,688) 09/16/25 09/16/2509/16/25-126%$ 21,206 0 10037351 - Moccasin Dam Long-Term
Improvements
PL $ 83,176 $ 457$ 73,176 $ 10,000 07/01/27 06/30/2807/01/2712%$ 83,176 (365) 10014115 - Cherry Dam Spillway - Short
Term Improvements
PL $ 11,861 $ 584$ 11,861 - 07/01/27 06/30/2707/01/270%$ 11,861 1 Mountain Tunnel
10014114 - Mountain Tunnel
Improvement Project
CN $ 238,219 $ 78,874$ 238,219 - 06/03/27 06/03/2706/03/270%$ 238,219 0 Roads & Bridges (Joint)
10035086 - Bridge Replacement (4 -
Bridges)
PL $ 44,287 $ 1,876$ 29,371 $ 14,916 05/25/37 07/01/2705/25/3734%$ 44,287 3616 (+) 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 or/ and additional contingencies on construction contracts.

7. PROJECT STATUS REPORT
10035574 - SJPL Tesla Valves Replacement
Project Description: The 2018 approved scope for this pro ject is to replace four lar ge diameter butterfl y valves, namely TUV 101, 201, 301 and 401, inside the Tesla Valve Vault so that each of the four San Joaquin Pipelines (SJPL) can be safel y isolated and shut down individuall y for inspection and repair work without shutting down the entire SJPL system. This pro ject will also improve safet y for entr y into the pipelines for maintenance and inspection purposes. After the planning phase of the related pro ject SJPL Valve and Safe Entr y Improvement (Project 10035575) it was recommended that the scope of SJPL Tesla Valve Replacement be reduced, to focus on completing the replacement of TUV101 only. The remainder of the work (i.e. TUV 201, 301 and 401) has been added to the scope of SJPL Valve and Safe Entry Improvement (Project 10035575) to expedite improvements for TUV101 during the planned winter shutdown from January to February 2022 to facilitate necessary maintenance work for SJPL No. 1 during the remainder of 2022. The installation of TUV201, 301 and 401 will proceed to gether with the up grade work proposed under SJPL Valve and Safe Entr y Improvement, in 2023 and 2024.

Project Status: ConstructionProgram: Water Infrastructure Environmental Status: Completed Project Cost:

Forecast
Actual
$3.74 M
$2.32 M
Forecast
May-19 Dec-22
May-19 Dec-22
Project Schedule:
$3.74 M
Project Percent Complete: 76.7%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
Current Forecast 07/29/2208/26/20 04/06/21
Progress and Status:

The new 66-inch diameter butterfl y valve and the new
24-inch diameter butterfl y valve have been in service
without issues since installed last quarter. In this
quarter, the contractor completed punch-list items,
including repair of the exterior coating of the 24-inch butterfly valve. All the field work has been completed
as of the end of this quarter. The contractor is
anticipated to finalize the as-built drawin gs and
achieve final completion in July 2022.

Issues and Challenges:

None at this time. Worker performing coating repair for the 24-inch butterfly valve
10 N/A
Q4-FY2021-2022 (04/01/22 - 06/30/22)
10035575 - SJPL Valve and Safe Entry Improvement
Project Description: The San Joaquin Pipelines (SJPLs) consist of three parallel pipelines approximately 48 miles long (completed in 1932, 1953, and 1968, re spectively) that cross the San Joaquin Valle y from the Oakdale Portal of the Foothill Tunnel on the east end to the Tesla Portal of the Coast Range Tunnel (CRT) on the west.

Portions of a fourth pipeline have also been constructed consisting of 6.4 miles of pipe downstream of Oakdale and 11 miles upstream of Tesla. The hydraulic gradient on the SJPLs was limited by surge stacks/towers a t Oakdale portal (~825 ft) and Tesla portal (~500 ft). The pipelines were intended to be shut down at Oakdale.

As part of the SFPUC’s Water System Improvement Program (WSIP), the Emer y and Pelican crossover vaults were installed and the Roselle crossover vault was modi fied to allow for flows between SJPLs and isolation o f SJPL segments for inspection and maintenance. In addition, the Tesla Valve House (TVH) and Tesla Treatment Facility (TTF) were added upstream of the Tesla surge to wer. Like the SJPLs, the crossover vaults and Tesla facilities are rated for the maximum pressures that should occur under normal operating conditions. However, the pipelines and pipeline segments still need to be sh ut down from the upstream end. Closure of multiple in-line valves or all TTF UV reactor valves ca n over-pressurize the pipelines. As in the ori ginal design, complete shutdown of the SJPL system must be done at Oakdale.

The ob jective of this pro ject is to allow safe entr y into an y and all sections of the SJPLs for inspection and maintenance while the remainder of the system stays in operation. The scope and bud get of installin g the TUV201, 301 and 401 butterfl y valves has been transferred from pro ject SJPL Tesla Valve Replacement pro ject (10035574) and added to SJPL Valve and Safe Entry Improvement.

Project Status: Multiple PhaseProgram: Water Infrastructure Environmental Status: Active Project Cost:

Forecast
Actual
$98.92 M
$4.72 M
Forecast
Jul-19 Mar-28
Jul-19 Mar-28
Project Schedule:
$142.66 M
Project Percent Complete: 9.6%
Approved Approved
Actual Cost; Forecast Approved;
Bid*
Advertisement
Construction*
Final Completion
Environmental*
ApprovalKey Milestones: Construction*
NTP
(A) 12/25/21Current Forecast (A) 09/13/24(A) 01/27/22 (A) 05/16/22 (B) 04/21/22 (B) 09/02/24(B) 01/27/22 (B) 10/28/22
(C) 06/01/23 (C) 05/24/27(C) 01/27/22 (C) 11/16/23
(D) 10/01/22 (D) 10/24/24(D) 12/06/22 (D) 04/09/23
Proposed Tesla Surge Tower (Phase 3)
* (A) Phase 1A – Pipeline 2 Tesla & Oakdale Entry Improvements – HH-1005; (B) Phase 1B – Pipelines 3&4 Tesla & Oakdale Entry Improvements HH-1006;
(C) Phase 2 -Pelican, Roselle, Emery and P4J Entry Improvements; and (D) Phase
3 - Tesla Surge Tower.

Progress and Status:

This project is divided into four (4) sub-projects, as
specified in the above footnote. For Phase 1A, the
Notice to Proceed (NTP) for Construction Contrac t
HH-1005 was issued on May 6. For Phase 1B,
Construction Contract HH-1006 was advertised durin g
the quarter on April 21. The Engineer’s Estimate was
$14M. The bids will be opened next quarter on July 7.

For Phase 2, the design phase started this quarter. For Phase 3, the 95% desi gn milestone was achieved this
quarter.

Issues and Challenges:

Surge tower operations are bein g reviewed to better
understand scenarios when the sur ge tower mi ght
overflow. At this time, there is no change in forecast for the overall project budget and schedule.
11 Hetch Hetchy Capital Improvement Program Quarterly Report 10036809 - Moccasin Powerhouse Bypass Upgrades
Project Description: Hetch Hetch y water deliveries are conve yed from Priest Reservoir to Moccasi n Powerhouse (MPH) through the Moccasin Pe nstocks. At MPH, water passes throu gh two hydroelectric turbines where energy is converted from high-pressure water into electricity. When electricit y is not being produced, the water deliveries are directed around the turbines by two bypass valves that dissipate up to 305 million gallons per day (mgd) at 560 pounds per square inch (psi) of water energy. In the past, short-term use of the b ypass system has resulted in significant vibration and cavi tation damage to the bypa ss valves. Long-term use ( greater than two to five days) could lead to ma jor mechanical dama ge or failure, leadin g in turn to the potential o f interruption of water deliveries to San Francisco. This pro ject will provide a reliable h ydraulic b ypass and energy dissipation s ystem for conve ying water around the turbines to the Moccasin Reservoir B ypass Pipeline, allowing for increased operatin g flexibilit y for HHWP to meet scheduled water deliveries even when MPH, Moccasin Switchyard, or power Transmission Lines #3 and #4 are curtailed.

Project Status: PlanningProgram: Power Infrastructure Environmental Status: Not Initiated Project Cost:

Forecast
Actual
$15.01 M
$0.54 M
Forecast
Sep-20 Dec-27
Sep-20 Dec-27
Project Schedule:
$15.01 M
Project Percent Complete: 7.3%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
08/27/24Current Forecast 06/02/2708/26/24 02/28/25
Progress and Status:

The project team issued NTP to the consultant for the
planning phase conceptual engineering report (CER) in
May 2022. The preferred alternative is to move the
bypass system to a location outside of the powerhouse
and north of the Moccasin penstocks. A topographical
and utility survey has been scheduled for August 2022.

Issues and Challenges:

The preliminar y plannin g phase construction cos t
estimate for the preferred alternative is $16.6M to
$21.6M, approximately 100% to 145% hi
gher than the
original estimate of $8.8M. The pro ject team will
evaluate the effect of this increase on the total pro ject budget and will update forecasts next quarter.

Moccasin Powerhouse Bypass preferred alternative location 12 Q4-FY2021-2022 (04/01/22 - 06/30/22)
10014086 - Moccasin Powerhouse and GSU Rehabilitation
Project Description: The two Moccasin Powerhouse generators were completed in 1969 and generate a combined maximum output of 110 megawatts. Both generator units have exceeded their life expectanc y and are in need of repair in order to continue operating reliably. The ob jective of this pro ject is to replace stator cores and coils. The scope of work also includes rehabilitat ion of the rotor field poles with new pole cores and re-insulated field coils, replacement of the rotor pole/rim tail connection system with a new T-tail connection system, and supply of a new rotor rim for each gene rator following inspection and testing. The pro ject will also include replacement of two generator step-up transfor mers (GSUs) with new oil containment barriers, and remaining plant work including: repl acing 480V switchgear, 13.8kV switch gear, motor control centers, main control boards, protective relays, and cooling water piping.

Project Status: Multiple PhaseProgram: Power Infrastructure Environmental Status: Active Project Cost:

Forecast
Actual
$66.71 M
$15.12 M
Forecast
Jan-16 A pr-27
Jan-16 Dec-27
Project Schedule:
$66.71 M
Project Percent Complete: 23.2%
Approved Approved
Actual Cost; Forecast Approved;
Bid*
Advertisement
Construction*
Final Completion
Environmental*
ApprovalKey Milestones: Construction*
NTP
(A) 11/20/20Current Forecast (A) 05/23/23(A) 09/28/20 (A) 06/07/21 (B) 10/30/20 (B) 06/17/24(B) 09/28/20 (B) 08/08/22
(C) 04/01/24 (C) 06/07/27(C) 09/28/22 (C) 10/02/24
* (A) Moccasin Powerhouse Generator Step-Up (GSU’s) Transformers HH-1003R was re-advertised on 1/14/21; (B) Moccasin Powerhouse Generators Rewind
– DB-121R2; and (C) Moccasin Powerhouse Systems Upgrade.

Progress and Status:

This project is divided into 3 subpro jects, as specified in the above footnote. For subproject A, HH-1003R,
Moccasin Powerhouse (MPH) Generator Step-up
(GSU) Transformer Installation, the new Delta Star
GSU1 transformer was moved from the spare slo
t
outside the Powerhouse and installed on the new oil
containment foundation inside the Powerhouse last
quarter, in March. Partial utilization was achieved this quarter, in April. For subproject B, DB-121R2, MPH

Generators Rehabilitation, both the 100% desi gn
drawings for miscellaneous generator rewind items
and the 100% desi gn drawings for the Relay Protection
and Control Panels were received from the
design-builder. Construction Notice to Proceed (NTP)
is scheduled for August 2022, it is anticipated that the two month dela y to issuin g the construction NTP
should not have an impact to construction final
completion in June 2024. For subpro
ject C, MPH
Systems Upgrades, the Planning Phase kickoff meeting
was held in May 2022 and the Site Walk was
completed in June 2022.

Issues and Challenges:

None at this time.

Generator Winding Bars being formed in factory
13 Hetch Hetchy Capital Improvement Program Quarterly Report 10014087 - Warnerville Substation Rehabilitation
Project Description: This project is based on the need to extend the useful life of the Warnerville Substation and meet reliability requirements of NERC/W ECC and PG&E Intertie Agreements. The up grades include replacing three existing 3 phase transformer with two larger rated transformers. Other up grades include new 115kV and 230kV disconnect switches and breakers; new Control Room, perimeter fence, rela ys and controls; improvement to the grading and grounding system.

Project Status: ConstructionProgram: Power Infrastructure Environmental Status: Active Project Cost:

Forecast
Actual
$34.25 M
$22.04 M
Forecast
Sep-15 Nov-26
Sep-15 Nov-26
Project Schedule:
$34.25 M
Project Percent Complete: 77.8%
Approved Approved
Actual Cost; Forecast Approved;
Bid*
Advertisement
Construction*
Final Completion
Environmental*
ApprovalKey Milestones: Construction*
NTP
(A) 01/24/17Current Forecast (A) 03/31/24(A) 03/31/16 (A) 10/05/17 (B) 09/06/24 (B) 05/04/26(B) 07/07/23 (B) 02/03/25
* (A) Warnerville Substation Phase 1 – DB-127R; (B) Warnerville Substation Phase 2.

Progress and Status:

The pro ject team, in coordination with the Cit y
Attorney’s office, is workin g to close out the contract DB-127R, Warnerville Substation Rehabilitation. The
design was completed last quarter for the “breaker
failure contingency plan” that provides for emer gency
temporary replacement of an y breakers that fail until
they can be permanently replaced. The strate gy to
contract for this work, that would onl y be required in the event of breaker failure but not otherwise, is still being determined.

Contract HH-1008 Warnerville Substation
Rehabilitation Phase 2 will be a design-bid-build
contract. Notice To Proceed (NTP) on a task order for

engineering services durin g plannin g, desi gn and
construction was issued in May 2022. The site visit is
scheduled for July 2022.

Issues and Challenges:

None at this time.

Typical 230KV SF6 Breaker to be Installed
as Part of Phase 2
14 Q4-FY2021-2022 (04/01/22 - 06/30/22)
10035721 - Transmission Lines 7/8 Upgrades
Project Description: This pro ject develops the scope of work, desi gn, and contract documents necessar y to bid, award, and manage the recond uctoring contract. Reconductorin g will include replacement of the existin g 115kV conductors on Lines 7/8 from Warnerv ille to Standiford substations, resultin g in improved transmission tower stability, and resolved clearance detections.

The pro ject will be partiall y funded b y independent power generators interconnectin g on the California Independent System Operator (CAISO).

Project Status: Bid and AwardProgram: Power Infrastructure Environmental Status: Completed Project Cost:

Forecast
Actual
$37.97 M
$3.28 M
Forecast
Dec-19 Jan-25
Dec-19 Jan-25
Project Schedule:
$37.97 M
Project Percent Complete: 17.2%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
02/11/22Current Forecast 06/28/2411/04/21 10/03/22
Progress and Status:

Significant progress was achieved in the Bid/Award
phase with the formal award of the pro ject by the Sa n Francisco Public Utilities Commission durin g the
quarter at the June 28 Commission meeting. The
Engineers Estimate was $28M and the lowest
responsive bidder, Wilson Utilities Constructio
n
Company, was awarded the project at $23,980,141. The
project is anticipated to issue Notice to Proceed for
construction no later than October 1, 2022.

Issues and Challenges:

None at this time.

Transmission Line 7/8 Tower 508S Looking North
15 Hetch Hetchy Capital Improvement Program Quarterly Report 10014088 - Moccasin Penstock
Project Description: Moccasin Penstock was built in the early 1920's and conve ys Hetch Hetchy water nearly one mile from Moccasin Tunnel to the Moccasin Powerh ouse. Moccasin penstock serves as the sole link in conveying water from Priest Reservoir to Moccasin Rese rvoir, from which water is routed to the San Francisco Public Utilities Commission (SFPUC) customers. The lower 1,084-foot section of welded steel pipe replaced the original penstocks when the new Moccasin Powerhouse was completed in the 1960s. The upper 4,000 feet of penstock dates to 1924 and has been in service for more than 97 years. Previous condition assessments have identified deficiencies includin g corrosion, coatin g damage, linin g de gradation, leaka ge, a ggregate expansion, cracks in the concrete anchor blocks and saddles, vuln erability of the hammer forged steel pipe sections. The objective of this pro ject is to enhance the reliabilit y of water deliver y and extend the life of the penstock s ystem for another 50 to 100 years.

Project Status: PlanningProgram: Joint Infrastructure Environmental Status: Active Project Cost:

Forecast
Actual
$47.25 M
$5.63 M
Forecast
Feb-16 Feb-28
Feb-16 Feb-28
Project Schedule:
$47.25 M
Project Percent Complete: 12.7%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
10/07/24Current Forecast 08/24/2710/07/24 04/15/25
Progress and Status:

A second workshop was held durin g the quarter, on
April 14 to present the needs assessment report (NAR)
to Hetch Hetchy Water & Power (HHWP). The NAR
was finalized on April 25. A notice of task order
change was issued on April 28 to perform condition
assessment testin g of the penstocks, usin g destructive testing on samples of the hammer-for ged welded steel
joints, and non-destructive testing of the pipes. A site visit to evaluate the condition of the Moccasin penstock manwa
y openin g and to assess the need for an y
security measures for the facilit y was held durin g the quarter, on May 10. The alternatives analysis (AAR)
project phase kick-off meetin g with HHWP was held
during the quarter, on June 13, to discuss strate gy,
schedule, and risk for the project.

Issues and Challenges:

None at this time.

Site visit to evaluate the Moccasin penstock manway
openings
16 Q4-FY2021-2022 (04/01/22 - 06/30/22)
10030758 - OSH Dam Access and Drainage Improvements
Project Description: The O’Shaughnessy Dam is located 140 miles east of San Francisco, CA in Y osemite National Park, Tuolumne County. The dam, a concrete curved gravity st ructure, is located on the Tuolumne River across the steep-walled Hetch Hetchy Valley. The interior workings of the dam contain valves and app
urtenances that must be accessed for operations and maintenance.

This pro ject includes improvements for safe access, as well as miti gation of excess interior water leaka g e through draina ge improvements, for the Ladder We lls, G alleries, Inclined Stairway s, Control Room, and Diversion Tunnel.

The project was reduced in scope of work in 2020 to meet the existing approved budget. The new project will be advertised as O’Shaughnessy Dam-Fall Protection Improvements and Spillway Access to complete the reduced scope of work.

Improvements that were not included in this revi sed project, such as draina ge improvements, will be included
in the OSH Dam Outlet Works Phase 1 project.

Project Status: ConstructionProgram: Joint Infrastructure Environmental Status: Completed (CatEx)
Project Cost:

Forecast
Actual
$3.95 M
$2.60 M
Forecast
Mar-17 Feb-23
Mar-17 Feb-23
Project Schedule:
$3.95 M
Project Percent Complete: 72.2%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
03/18/21Current Forecast 08/21/2207/16/20 09/27/21
Progress and Status:

Substantial Completion was established durin g the
quarter, on May 20. The Contractor is developin g final as-builts. The project team is workin g on the
construction contract closeout.

Issues and Challenges:

None at this time.

New Fall Protection – Inclined Stairs
17 Hetch Hetchy Capital Improvement Program Quarterly Report 10032903 - O'Shaughnessy Dam Outlet Works Phase I
Project Description: O'Shaughnessy Dam (OSH) was completed in 1923 and raised in 1938. The original outlet works including gates and valves have been in serv ices for more than 98 years. Inspections, conditio n assessments, and studies concluded that improvements and refurbis hments of the outlet works s ystem are needed to ensure safety and reliability. The wo rk will be implemented in two phases. This pro ject is to cover the Phase 1 work. The O’Shaughnessy Dam Outlet Works Phase 1 Project addresses the identified deficiencies of the existing outlet works system at OSH. Phase 1 will include four projects: (1) suppl y and installation of nine new bulkheads; (2) refurbishment of twelve existi ng slide gates; (3) rehabilitation of existin g drum gates to replace the seals, replace the hinges and rivets, recoating the ga tes, and repair the spillway concrete; and (4) installation of a new diversion pipe isolation butterfly valve.

The existing control gates and valves are essential feat ures for dam safety and reservoir operation. The pro ject is needed to maintain safe and reliable operation of these aging assets. Failure or malfunction of these gates and valves will affect dam safet y and result in reduction of stora ge and reduction of water deliveries to SFPUC customers.

Project Status: PlanningProgram: Joint Infrastructure Environmental Status: Active Project Cost:

Forecast
Actual
$21.21 M
$1.95 M
Forecast
Feb-18 Sep-25
Feb-18 Sep-25
Project Schedule:
$47.89 M
Project Percent Complete: 20.7%
Approved Approved
Actual Cost; Forecast Approved;
Bid*
Advertisement
Construction*
Final Completion
Environmental*
ApprovalKey Milestones: Construction*
NTP
(A) 01/03/23Current Forecast (A) 03/14/25(A) 01/03/23 (A) 09/01/23 (B) 04/03/23 (B) 06/28/24(B) 12/30/22 (B) 11/06/23
(C) 03/07/23 (C) 03/27/25(C) 08/30/23 (C) 08/31/23
* (A) Bulkhead; (B) Access and Drainage; (C) Instream Flow Release Progress and Status:

Subproject A (Bulkhead): Durin g this quarter, work
continued on preparation of a progressive-design-build
specification and bid packa ge for the desi gn and
construction of the bulkhead. Subproject B (Access &
Drainage): The plan and a job order contract (JOC) for
a closed-circuit television (CCTV) inspection of the
existing dam drain s ystem were both finalized this
quarter. The drain inspection JOC will be performed
next quarter, in early July. Subproject C (Instream Flow Release Valve Replacement): The Needs Assessmen t
Report/Alternatives Analysis Report (NAR/AAR) was
completed and approved b
y the Technical Steerin g
Committee (TSC) on June 2, 2022. Work also be gan on
the Conceptual Engineering Report (CER). The
environmental assessment for the proposed pro ject
continues. A historic resource evaluation determined
that the existin g instream flow release valves and the access buildin g do not displa y sufficient historical
significance to be cate gorized and treated as a historic resource.

O’Shaughnessy Dam Instream Flow Release Valves
Issues and Challenges:

The pro ject schedule is predicated on receivin g the
Bureau of Land Management (BLM) approval for the
Raker Act boundary correction in August. Dela y in
obtaining the needed boundary correction ma y impact
the project schedule.
18 Q4-FY2021-2022 (04/01/22 - 06/30/22)
10037351 - Moccasin Dam Long-Term Improvements
Project Description: The flow capacit y of the existin g spillwa y is inadequate to protect the Moccasin Dam against overtopping and erosion from severe flood events. The dam almost overtopped during the March 2018 storm event when flows were released from the auxiliar y spillwa y and caused si gnificant dama ge to the auxiliary spillway. The surroundin g areas and the upstream diversion dam also sustained dama ge from the flood. This project is needed for dam safety. The ob jective of this project is to increase the spillwa y flow capacity to allow safe passa ge of flood flows without overtoppin g the dam and to protect the associated facilities within the Moccasin reservoir boundary against flood damages. The estimated project cost is $83.2 million and is within the current 10-year CIP FY 21-30. Construction is scheduled for 2025-2027.

Project Status: PlanningProgram: Joint Infrastructure Environmental Status: Not Initiated Project Cost:

Forecast
Actual
$83.18 M
$0.46 M
Forecast
May-21 Jul-27
May-21 Jun-28
Project Schedule:
$73.18 M
Project Percent Complete: 2.6%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
01/02/26Current Forecast 12/30/2706/30/26 09/03/26
Progress and Status:

The en gineering consultant continued work on the
conceptual engineering phase during the quarter.

Geotechnical field explorator y drillin g was completed in June. H ydraulic evaluation and conceptual desi gn
for the new Moccasin Dam auxiliar y spillwa y and to
provide flood protection improvement for the
Moccasin powerhouse are in progress.

Issues and Challenges:

None at this time.

Moccasin Geotechnical Drilling
19 Hetch Hetchy Capital Improvement Program Quarterly Report 10014115 - Cherry Dam Spillway - Short Term Improvements Project Description: A spillway release from Cherry Dam in 2010 caused a landslide, blocka ge of the spill channel, and extensive erosion in the close proximity of the dam’s right abutment. In addition, it caused flooding of the Cherry Power Tunnel Adit, and fl ooding of a campground further downstream. En gineering studies determined that significant long-term improvements to increase the spillway flow capacity are needed to maintain dam safety. The objective of this project is to re-establish containment for the breached spill channel section and to protect the downstream slope of the existin g embankment dam from uncontrolled releases and erosion in the interim until the long-term improvemen ts are implemented. Construction is scheduled for 2025-2026. The estimated project cost of $11.9 million is within the current 10-year CIP FY 21-30.

Project Status: PlanningProgram: Joint Infrastructure Environmental Status: Active Project Cost:

Forecast
Actual
$11.86 M
$0.58 M
Forecast
Mar-21 Jul-27
Mar-21 Jun-27
Project Schedule:
$11.86 M
Project Percent Complete: 10.1%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
08/29/24Current Forecast 12/31/2606/18/24 04/30/25
Progress and Status:

The en gineering consultant continued work on the
alternative anal ysis for the Cherr y Dam Spillwa y
Short-Term Improvements. Additional h ydraulic
analysis and alternative stud y for the lower spillwa y section are bein g performed to evaluate the differen t scopes and costs for alternative improvements that will provide several different levels of flood protection and performance criteria.

Issues and Challenges:

The additional hydraulic analysis and alternative study for the lower spillwa y will dela y completion of the
planning phase. The overall pro ject schedule will be
re-evaluated when the planning phase is completed.

Cherry Valley Dam Spillway Downstream Channel
(looking downstream)
20 Q4-FY2021-2022 (04/01/22 - 06/30/22)
10014114 - Mountain Tunnel Improvement Project
Project Description: Mountain Tunnel conveys the SFPUC water supply from Kirkwood Powerhouse to Priest Reservoir. Mountain Tunnel has been in service since 1925. Due to its a ge, deferred maintenance, and construction deficiencies in the early 1900s, sections of the tunnel lining have deteriorated, some extensively.

This project provides desi gn and construction of ma jor tunnel repair and rehabilitation work, adit and tunnel entry improvements, access road improvements, and installation of a new flow control facilit y at Priest Reservoir to ensure that the tunnel can reliably provide drinking water to customers for the next 100 years.

The flow control structure and isolation valves will also be used to isolate the tunnel from Priest Reservoir during tunnel shutdowns. This will allow the reservoir to remain full and not backwater for over 8 miles into the dewatered tunnel. The full reservoir provides more suppl y water for safel y extending the tunnel shutdowns to longer durations of 100 days for construction inside the tunnel. These lon ger outages will reduce the need for more typical 60-day outages and shorten the overall duration of the construction schedule.

Project Status: ConstructionProgram: Joint Infrastructure Environmental Status: Completed Project Cost:

Forecast
Actual
$238.22 M
$78.87 M
Forecast
Oct-11 Jun-27
Oct-11 Jun-27
Project Schedule:
$238.22 M
Project Percent Complete: 39.5%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
11/13/19Current Forecast 08/30/2401/14/20 01/29/21
Progress and Status:

This quarter’s progress included completing 100% of
the excavation and initial linin g of the Flow
Control Facility (FCF) shaft and 90% of the excavatio n and initial linin g of both the Upstream B ypass Tunnel and the Downstream Bypass Tunnel. The 1,000-foot
Priest Adit tunnel excavation and initial linin g also
achieved 90% completion during the quarter. Ke y
material items needed for Outage No. 2 (January
3 through March 8, 2023) are bein g fabricated at this time and include lar ge diameter steel pipes for the
Bypass Tunnels, four double-disc knife- gate valves
required for the bottom of the FCF shaft and a steel
bulkhead door required for the Priest Adit tunnel.

Road improvement work alon g Rickson Road at the
Priest Reservoir site is approximately 80% complete.

Safety and road improvement work also continues a t
Adit 8/9, Adit 5/6 and South Fork Roads. Planning
and risk management for Outage No. 2 is takin g place
on a continuous basis.

Issues and Challenges:

None at this time.

Flow Control Facility Shaft and Bypass Tunnels
(View from top of shaft looking down)
21 Hetch Hetchy Capital Improvement Program Quarterly Report 10035086 - Bridge Replacement (4 - Bridges)
Project Description: HHWP is responsible for maintaining 14 brid ges located in the Cherr y, Eleanor, and Hetch Hetchy region. Condition assessments in 2013 and 2016 determined that, four of these brid ges require substantial rehabilitation or replacement: Lake Eleanor Dam Brid ge, O'Shaughnessy Adit Access Bridge, Cherry Lake Road Bridge (public access), and Early Intake Br idge (public access). The project will be funded in 2 phases. The first phase will include plannin g, desi gn and construction of Eleanor Dam Brid ge and O’Shaughnessy Adit Access Bridge. The plannin g, desi gn and construction of the Earl y Intake Brid ge and Cherry Lake Road Bridge will be under Phase 2.

Project Status: PlanningProgram: Joint Infrastructure Environmental Status: Not Initiated Project Cost:

Forecast
Actual
$44.29 M
$1.88 M
Forecast
Feb-20 Ma y-37
Feb-20 Jul-27
Project Schedule:
$29.37 M
Project Percent Complete: 46.9%
Approved Approved
Actual Cost; Forecast Approved;
Bid*
Advertisement
Construction*
Final Completion
Environmental*
ApprovalKey Milestones: Construction*
NTP
(A) 07/17/24Current Forecast (A) 09/17/26(A) 09/04/24 (A) 04/18/25 (B) 08/01/24 (B) 04/13/27(B) 07/31/24 (B) 02/03/25
* (A) Lake Eleanor Dam Bridge; and (B) O’Shaughnessy Adit Access Bridge.

Progress and Status:

This project is divided into 2 subprojects, as specified in the above footnote. For the Lake Eleanor Dam Brid ge,
the engineering consultant continued work durin g the
quarter on additional analyses to address findings from Department of Safety of Dams (DSOD)s structural
analysis. Work continued to further develop the
capacity of the existin g structure and the proposed
alternatives. For the O’Shau ghnessy Adit Access
Bridge, a follow up meetin g to the two previousl y held workshops was conducted b y the consultant with
HHWP during the quarter on April 4, and the draft
alternatives analysis report (AAR) was submitted on
May 16. An alternatives scorin g panel workshop was
held on May 20, and the draft AAR was presented to
Engineering Mana gement Bureau section mana gers
and HHWP on June 17. The pro ject team is scheduled
to present the selected alternatives to Technical
Steering Committee (TSC) members for approval next
quarter, on July 7.

Issues and Challenges:

As noted since Q1, the variances between the approved
budget and schedule and the forecasted bud get and
schedule are due to division of the pro ject into two
phases, with the plannin g, desi gn and construction of the Lake Eleanor Dam Bridge and O’Shau ghnessy Adit
Access Bridge within the first phase and funded in the
FY21-30 10-Year CIP. The fundin g for the plannin g,
design and construction of the other two of the four
Aerial View of the Lake Eleanor Dam Bridge
bridges has been deferred until after 2030. The
forecasted completion for the two brid ges is decreased from the approved completion date of May 2037 to a
revised completion date of January 2027. The forecast
date of final construction completion for the Lake
Eleanor Dam Bridge subproject has increased nine
months from the date reported last quarter due to
project plannin g status this quarter incorporatin g the preliminary alternative study for the Eleanor Brid ge to reflect more extensive constructabilit y plannin g and
structural evaluation required.
22 Q4-FY2021-2022 (04/01/22 - 06/30/22)
10014108 - Canyon Tunnel Rehabilitation
Project Description: Canyon Tunnel was built over 45 years ago. A condition assessment was performed on the tunnel in 2009. The tunnel is in generally good condition, with the exception of the Hetch Hetch y Adit, a tunnel access point. Temporary repairs have been made to the plug at this adit twice (once in 1989 and once in 2009), but permanent repairs are needed to reduce leakage and increase reliability of the system. The pro ject scope includes installation of a new, reinforced concrete plug downstream of the existing plug.

Project Status: PlanningProgram: Joint Infrastructure Environmental Status: Active Project Cost:

Forecast
Actual
$8.43 M
$0.70 M
Forecast
Feb-14 Jan-25
Feb-14 Se p-26
Project Schedule:
$8.43 M
Project Percent Complete: 9.9%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
08/01/24Current Forecast 02/27/2607/31/24 02/01/25
Progress and Status:

The project restarted in this quarter after it was placed on hold in 2016 due to right of way issues. Cos t
Reimbursement a greement with Bureau of Land
Management (BLM) has been si gned and the Ri ght of
Way application has been submitted to Bureau of Land
Management for review. Notice to Proceed was issued
on April 21st for the professional service consultant to support the pro ject durin g plannin g, desi gn and
construction phases. A site visit was held on May 4th
with HHWP and the consultant to evaluate the dr y
side of the existin g plu g and observe exposed rock
within the Hetch Hetchy Adit. A workshop was held to
present the identified needs and discuss the
construction schedule with HHWP on June 1st.

Issues and Challenges:

The forecasted completion date is 20 months later than
the approved completion date due to the time required
to obtain the Ri ght of Wa y boundar y correction from
BLM.

Site visit to evaluate the existing plug at Hetch Hetchy Adit within the Canyon Tunnel.
23 Hetch Hetchy Capital Improvement Program Quarterly Report 10014110 - Moccasin Wastewater Treatment Plant
Project Description: The Moccasin Wastewater Treatment Plant (WWTP) pro ject proposes to replace the community’s aging treatment plant. Moccasin’s treatm ent plant was installed in the 1970s and has been i n continuous service since that time. Wastewater generated by the Moccasin community, powerhouse, and related facilities flows to this treatment plant. The treatment facility currently serving Moccasin was a “package plant” that was manufactured off-site, transported to Moccasin, and installed in 1977. At more than 44- years old, the Moccasin treatment plant has reached the end of its useful service life, and is becomin g increasin gly maintenance intensive. Additionally, Moccasin has no backup treatment; accordin gly, failure of the plant would have significant consequences.

This project will replace the existing wastewater treatm ent facilities with a Sequence Batch Reactor (SBR) plant.

The proposed SBR “package plant” is to be a two-trai n facility. Each train would have a capacity of 12,000 gallons per day to accommodate average daily dry-weather flow. The new plant would continue to trea t wastewater to secondary standards. The new plant will be provided with up graded screening, flow monitoring, flow equalization, SCADA instrumentation, and automation features. The packa ge plant would be manufactured off-site, trucked to Moccasin, and then installed beside the current plant. The existin g plant must serve the Moccasin communit y while the new plant is bein g installed and would remain in operation durin g construction. The proposed pro ject is limited to the treatment plant onl y and does not include improvements either upstream or downstream of the plant.

Project Status: DesignProgram: Joint Infrastructure Environmental Status: Active Project Cost:

Forecast
Actual
$8.79 M
$0.50 M
Forecast
Sep-21 A pr-26
Jan-22 A pr-26
Project Schedule:
$8.79 M
Project Percent Complete: 7.5%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
05/09/23Current Forecast 09/09/2511/14/23 11/28/23
Progress and Status:

Notice to Proceed was issued durin g the quarter, on
April 14, for the professional service consultant to
support the pro ject durin g plannin g, desi gn and
construction phases. A site visit with the consultant,
Engineering Mana gement Bureau staff and Hetch
Hetchy Water and Power staff to evaluate the existin g
condition , proposed sta ging areas, and proposed site
layout of the Moccasin Wastewater Treatment plant,
was held during the quarter, on May 11. A desi gn
criteria report workshop is scheduled to be held nex t
quarter, in early August.

Issues and Challenges:

None at this time.

Site visit with HHWP, Consultant, and EMB
24 Q4-FY2021-2022 (04/01/22 - 06/30/22) Hetch Hetchy Capital Improvement Program Quarterly Report

8. On-Going Construction*
The following table reflects active construction contract(s) with an original contract amount greater than $1M.

Actual
%
Complete
Current
Forecast
Cost
Schedule
(Cal. Days)
NTP
Date
Approved
Construction
Final
Completion
Variance
(Original - Forecast)BudgetSchedule
Construction Contract Current
Forecast
Cost*
Current
Forecast
Construction
Final
Completion*
Approved
Contract
Cost
Water Infrastructure
$ 11,879,454$ 11,879,45409/13/2409/13/2405/16/22
10035575 - SJPL Valve & Safe Entry
Improvement - Phase 1A - HH-1005 - -0 . 0 %
Power Infrastructure
$ 3,653,575$ 3,653,57505/23/2305/23/2306/07/21
10014086 - Moccasin Powerhouse
Transformers Installation - HH-1003R
- - 66.4%
$ 28,898,986$ 28,898,98606/17/2406/17/2406/21/21
10014086 - Moccasin Powerhouse
Generator Rehab - DB-121R2
- - 14.6%
$ 14,591,450$ 14,591,45003/31/2407/09/1910/05/17
10014087 - Warnerville Switchyard -
DB-127R **
(1,727) - 90.0%
Joint Infrastructure
$ 1,648,556$ 1,648,55608/21/2208/21/2209/27/21
10030758 - OSH Dam Access &
Drainage Improvement - HH-1002R
- - 80.4%
$ 152,870,508$ 152,870,50812/03/2612/03/2601/29/21
10014114 - Mountain Tunnel
Improvement - HH-1000R
- - 22.0%
Program Total
for On-Going
Construction $ 213,542,529 $ 213,542,529
Current Forecast
Cost*
Approved
Contract Cost
Variance
$- - %
Cost Percent
Note:
* The Current Forecast Cost and Current Forecast Construction Final Completion include all approved, pending, and potential change orders.
** The contract is funded with both CIP and non-CIP funds, but only the CIP funded amount is reflected. 25 9. PROJECTS IN CLOSEOUT
Hetch Hetchy Capital Improvement Program Quarterly Report Current
Approved
Construction
Phase
Budget
Actual
Construction
Phase
Completion
Current
Approved
Construction
Phase
Completion
Construction
Phase
Expenditures
To Date
Project Title
Power Infrastructure
Powerhouse
10014075 - Holm and Other Powerhouse Projects 05/14/21 05/14/21 $ 15,327,522 $ 12,869,573 $ 15,327,522TOTAL $ 12,869,573
26 27
Q4-FY2021-2022 (04/01/22 – 06/30/22)

10. COMPLETED PROJECTS
There are no completed projects
28 Hetchy Capital Improvement Projects Quarterly Report This page is intentionally left blank.

Appendices Q4-FY2021-2022 (04/01/22 - 06/30/22)

APPENDICES

A PROJECT DESCRIPTIONS

B APPROVED PROJECT LEVEL SCHEDULES / BUDGETS

C LIST OF ACRONYMS
Appendices
This page is intentionally left blank.

Q4-FY2021-2022 (04/01/22 - 06/30/22)
APPENDIX A. PROJECT DESCRIPTIONS
The project titles and descriptions are updated
according to the approved 10- year CIP for
FY21-30.

HETCH HETCHY CAPITAL

IMPROVEMENT PROGRAM (HCIP)

WATER INFRASTRUCTURE
10035574 - SJPL Tesla Valves Replacement
The 2018 approved scope for this pro ject is to
replace four lar ge diameter butterfl y valves,
namely TUV 101, 201, 301 and 401, inside the
Tesla Valve Vault so that each of the four San
Joaquin Pipelines (SJPL) can be safel y isolated
and shut down individually for inspection and
repair work without shuttin g down the entire
SJPL system. This pro ject will also improve
safety for entr y into the pipelines for
maintenance and inspection purposes. After
the planning phase of the related pro ject SJPL
Valve and Safe Entry Improvement (Pro ject
10035575) it was recommended that the scope
of SJPL Tesla Valve Replacement be reduced,
to focus on completin
g the replacement o f
TUV101 only. The remainder of the work (i.e.

TUV 201, 301 and 401) has been added to the
scope of SJPL Valve and Safe Entr y
Improvement (Project 10035575) to expedite
improvements for TUV101 durin
g the planned
winter shutdown from Januar y to Februar y
2022 to facilitate necessar y maintenance work
for SJPL No. 1 during the remainder of 2022.

The installation of TUV201, 301 and 401 will
proceed to
gether with the up grade work
proposed under SJPL Valve and Safe Entr y
Improvement, in 2023 and 2024.
10035575 - SJPL Valve and Safe Entry
Improvement
The San Joaquin Pipelines (SJPLs) consist o f
three parallel pipelines approximately 48 miles
long (completed in 1932, 1953, and 1968,
respectively) that cross the San Joaquin Valle
y
from the Oakdale Portal of the Foothill Tunnel
on the east end to the Tesla Portal of the Coast
Range Tunnel (CRT) on the west. Portions of a
fourth pipeline have also been constructed
consisting of 6.4 miles of pipe downstream o f
Oakdale and 11 miles upstream of Tesla. The
hydraulic gradient on the SJPLs was limited b y
surge stacks/towers at Oakdale portal (~825 ft)
and Tesla portal (~500 ft). The pipelines were
intended to be shut down at Oakdale.

intent was to increase operational flexibilit y
and the overall reliability of the SJPL System.

In addition, the Tesla Valve House (TVH) and
Tesla Treatment Facility (TTF) were added
upstream of the Tesla surge tower. Like the
SJPLs, the crossover vaults and Tesla facilities
are rated for the maximum pressures that
should occur under normal operatin
g
conditions. However, the pipelines and
pipeline se
gments still need to be shut down
from the upstream end. Closure of multiple
in-line valves or all TTF UV reactor valves can
over-pressurize the pipelines. As in the

original desi gn, complete shutdown of the
SJPL system must be done at Oakdale.

The ob
jective of this pro ject is to allow safe
entry into an y and all sections of the SJPLs for
inspection and maintenance while the
remainder of the system stays in operation.

The pro ject ob jective is not to up grade the
entire SJPL s ystem to the maximum possible
static or transient pressures, nor to up grade all
components in vaults to prevent possible
flooding of the vaults. However, the proposed

surge tower will protect the entire SJPL s ystem
from high static and transient pressure caused
by operation of valves at Tesla Treatment
Facility. The scope and bud get of installing the
TUV201, 301 and 401 butterfl y valves has been
transferred from pro ject SJPL Tesla Valve
Replacement project (10035574) and added to
A1
Appendices
SJPL Valve and Safe Entry Improvement.

10014072 – WATER ONLY/PROJECT

DEVELOPMENT
The Project Development (PD) Account
captures Program level expenditures. There
are four t ypes of char ges that will be allocated
to the PD Account: 1) char ges for task orders
for overall pro gram mana gement and pro ject
prioritization tasks, where the costs should be
distributed over all Capital Improvement
Program (CIP) Projects; 2) char
ges for
Infrastructure and Hetch y staff performin g
program level tasks including: capital plan
development, budget management (includin g
fund management, and cost reallocations), and
quarterl
y report generation tasks, where the
costs should be distributed over all CIP
Projects; 3) char
ges for portal support for the
existing SharePoint Po rtal (includes document
management and pro ject dashboard
reporting); and 4) char ges for work outreach
programs.

POWER INFRASTRUCTURE

10036809 - Moccasin Powerhouse Bypass
Upgrades
Hetch Hetch y water deliveries are conve yed
from Priest Reservoir to Moccasin Powerhouse
(MPH) through the Moccasin Penstocks. At

MPH, water passes throu gh two h ydroelectric
turbines where ener gy is converted from
high-pressure water into electricity. When
electricit
y is not bein g produced, the water
deliveries are directed around the turbines b y
two bypass valves that dissipate up to 305
million gallons per day (mgd) at 560 pounds
per square inch (psi) of water energy. In the
past, short-term use of the b
ypass s ystem has
resulted in si gnificant vibration and cavitation
damage to the bypass valves. Long-term use
(greater than two to five days) could lead to
ma
jor mechanical damage or failure, leading in
turn to the potential of interruption of water
deliveries to San Francisco. This pro
ject will
provide a reliable hydraulic bypass and energy
dissipation system for conveying water around
the turbines to the Moccasin Reservoir B ypass
Pipeline, allowin g for increased operatin g
flexibility for HHWP to meet scheduled water
deliveries even when MPH, Moccasin
Switchyard, or power Transmission Lines #3

and #4 are curtailed.

10036810 - Kirkwood Powerhouse Bypass
Upgrades
Hetch Hetch
y water deliveries are conve yed
through the Can yon Tunnel to the Can yon
Portal Valvehouse. Water then enters the
Kirkwood Penstock and drops 1,245 feet in
elevation to the Kirkwood Powerhouse (KPH).

At KPH, water passes throu gh three
hydroelectric turbines where ener gy is
converted from high-pressure water into
electricity, producin g a maximum output o f
124 megawatts at a maximum flow of 1,408
cubic feet per second. When electricit y is not
being produced, the water deliveries are
directed around the turbines throu gh a
separate b ypass s ystem consistin g of a
spherical guard valve and a 90-de gree needle
valve for flow control. Based on a condition
assessment of KPH performed in 2010, existin g
control problems limit operation of the b ypass
needle valve to no more than 70% open. An
inspection of the b ypass valve and dissipation
structure in 2016 indicated that the stainless
steel dissipator had failed, causin
g dama ge at
the base of a steel shaft column leadin g to the
bypass tunnel. Repairs to the dissipator,
bypass draft tube, and b ypass chamber were
completed in 2017, but the steel linin g
protecting the bypass chamber’s concrete walls
and floor subsequentl y failed after b ypass
usage. Additional repairs were made to the
steel lining of the bypass in 2019 under the
HH-991 2018 Mountain Tunnel Interim
Repairs construction contract. Long-term use

(greater than two to five days) could lead to
major mechanical damage or failure, leading to
potential interruption of water deliveries to
A2
Q4-FY2021-2022 (04/01/22 - 06/30/22)
San Francisco. This pro ject will provide a
reliable h ydraulic b ypass and ener gy
dissipation system for conveying water around
the turbines to the KPH B ypass Chamber and
Mountain Tunnel, allowin g for increased
operating flexibility for Hetch Hetch y Water &
Power (HHWP) to meet scheduled water
deliveries when KPH is not generating
electricity.

10014075 - Holm and Other Powerhouse
Projects
This pro ject provided fundin g for Holm
Powerhouse (HPH) Unit 2 up grades and other
items under $1 million involvin g power
generation renewal and equipment
replacement. The upgrade and rehabilitation of
HPH Unit 2 included 13.8 Kv equipment
upgrades, addition and inte gration of a
generator breaker, replacement of two 13.8kV
feed breakers, replacement of Unit 2 Mai n
Control Board, and an y necessar y tasks to
match Unit 2 to Unit 1. S ystem inte gration
work was done to inte grate exciter, governor
Programmable Logic Controllers (PLC), and
Generator 2 PLCs into the existin
g plant
control and Supervisor y Control and Data
Acquisition (SCADA) system. Additionall y,
this pro ject included up grades to turbine and
generators and to alternatin g current stations,
intended to extend the life of the unit by 20
years. Lastl
y, the project upgraded the existing
oil containment s ystems at Kirkwood
Powerhouse (KPH) and HPH to prevent oil
discharge into the environment. The existin
g
oil-water separators were replaced, and other
modifications were made to the powerhouse
interiors and to the transformer decks, to
discoura
ge contaminated dischar ges into the
adjacent streams. A monitorin g s ystem was
installed to alert HHWP of excessive leaka ge
and the need to manuall y pump oil
containment vessels. Failure of the oil
containment s
ystems at the powerhouses
would likel y result in environmental
contamination, fines, additional re gulatory
exposure, and the need for rehabilitation and
cleanup.

10014086 - Moccasin Powerhouse and GSU
Rehabilitation
The two Moccasin Powerhouse generators
were completed in 1969 and generate a
combined maximum output of 110 megawatts.

Both generator units have exceeded their life
expectancy and are in need of repair in order
to continue operating reliably. The ob jective of
this project is to replace stator cores and coils.

The scope of work also includes rehabilitation
of the rotor field poles with new pole cores and
re-insulated field coils, replacement of the
rotor pole/rim tail connection s
ystem with a
new T-tail connection s ystem, and suppl y of a
new rotor rim for each generator followin g
inspection and testing. The pro ject will also
include replacement of two generator step-up
transformers (GSUs) with new oil containment
barriers, and remaining plant work including:
replacing 480V switchgear, 13.8kV switch gear,
motor control centers, main control boards,
protective relays, and cooling water piping.

10014087 - Warnerville Substation

Rehabilitation
This project is needed to extend the useful life
of the Warnerville Substation and meet
reliability requirements of NERC/WECC and
PG&E Intertie Agreements. The up grades
include replacing three existing 3 phase
transformer with two lar ger rated
transformers. Other up grades include new
115kV and 230kV disconnect switches and
breakers; new Control Room, perimeter fence,
relays and controls; improvement to the
grading and grounding system.

10035721 - Transmission Lines 7/8 Upgrades
The SFPUC electric transmission lines 7/8
conveys power from Warnerville Substation to
Modesto Irrigation District’s (MID) Standiford
Substation. The SFPUC must accommodate
additional power flowin g across its
A3
Appendices
transmission s ystem due to grid
interconnection requests from independent
power generators interconnectin g on the
California Independent S ystem Operator
(CAISO). This is a requirement for SFPUC and
HHWP obli
gations as a nei ghboring provider
of electric transmission service.

Studies performed b y the SFPUC indicate the
principal impact to its s ystem is an overload o f
115kV Lines 7&8 between HHWP Warnerville
Substation and MID Standiford Substation
under contin genc y conditions i f
interconnections are made without
modification to the system’s capacity. Without
modifications, the SFPUC and HHWP
transmission s ystem could face reliabilit y
issues. Reconductorin g also resolves multiple
locations where the clearance between the
existin
g conductors and the ground or
structures does not meet current safe clearance
regulations.

This pro
ject develops the scope of work,
design, and contract documents necessar y to
bid, award, and mana ge the reconductorin g
contract. Reconductorin g will include
replacement of the existing 115kV conductors
on Lines 7/8 from Warnerville to Standiford
substations, resultin
g in improved
transmission tower stabilit y, and resolved
clearance detections.

The pro
ject will be partiall y funded b y
independent power generators interconnecting
on the California Independent S ystem
Operator (CAISO).

10014092 - POWER ONLY/PROJECT

DEVELOPMENT
The Project Development (PD) Account
captures Program level expenditures. There
are four t
ypes of char ges that will be allocated
to the PD Account: 1) char ges for task orders
for overall pro gram mana gement and pro ject
prioritization tasks, where the costs should be
distributed over all Capital Improvement
Program (CIP) Projects; 2) char
ges for
Infrastructure and Hetch y staff performin g
program level tasks including: capital plan
development, budget management (includin g
fund management, and cost reallocations), and
quarterly report generation tasks, where the
costs should be distributed over all CIP
Projects; 3) char
ges for portal support for the
existing SharePoint Po rtal (includes document
management and pro ject dashboard
reporting); and 4) char ges for work outreach
programs.

JOINT INFRASTRUCTURE

10014088 - Moccasin Penstock
Moccasin Penstock was built in the early 1920's
and conve ys Hetch Hetch y water nearl y one
mile from Moccasin Tunnel to the Moccasin
Powerhouse. Moccasin penstock serves as the
sole link in conve
ying water from Priest
Reservoir to Moccasin Reservoir, from which
water is routed to the San Francisco Public
Utilities Commission (SFPUC) customers. The

lower 1,084-foot section of welded steel pipe
replaced the ori ginal penstocks when the new
Moccasin Powerhouse was completed in the
1960s. The upper 4,000 feet of penstock dates

to 1924 and has been in service for more than
97 years. Previous condition assessments have

identified deficiencies includin g corrosion,
coating dama ge, linin g de gradation, leaka ge,
aggregate expansion, cracks in the concrete
anchor blocks and saddles, vulnerabilit y of the
hammer forged steel pipe sections. The
objective of this pro ject is to enhance the
reliability of water deliver y and extend the life
of the penstock system for another 50 to 100
years.

10030758 – OSH Dam Access and Draina
ge
Improvements
The O’Shaughnessy Dam is located 140 miles
east of San Francisco, CA in Yosemite National
Park, Tuolumne County. The dam, a concrete
curved gravity structure, is located on the
Tuolumne River across the steep walled Hetch
Hetchy Valley. The interior workin gs of the
A4
Q4-FY2021-2022 (04/01/22 - 06/30/22)
dam contain valves and appurtenances that
must be accessed for operations and
maintenance. This pro ject includes
improvements for safe access, as well as
miti
gation of excess interior water leaka ge
through draina ge improvements, for the
Ladder Wells, Galleries, Inclined Stairwa ys,
Control Room, and Diversion Tunnel. The
project was reduced in scope of work in 2020
to meet the existing approved budget. The new
project will be advertised as O’Shau
ghnessy
Dam-Fall Protection Improvements and
Spillwa
y Access to complete the reduced scope
of work. Improvements that were not included
in this revised pro
ject, such as draina ge
improvements, will be included in the OSH
Dam Outlet Works Phase 1 project.

10032903 – O’Shau
ghnessy Dam Outlet
Works Phase 1
O'Shaughnessy Dam (OSH) was completed in
1923 and raised in 1938. The ori ginal outlet
works including gates and valves have been in
services for more than 98 years. Inspections,
condition assessments, and studies concluded
that improvements and refurbishments of the
outlet works s
ystem are needed to ensure
safety and reliability. The work will be
implemented in two phases. This pro
ject is to
cover the Phase 1 work. The O’Shau ghnessy
Dam Outlet Works Phase 1 Pro ject addresses
the identified deficiencies of the existin g outlet
works system at OSH. Phase 1 will include
four projects: (1) suppl
y and installation of
nine new bulkheads; (2) refurbishment o f
twelve existing slide gates; (3) rehabilitation o f
existing drum gates to replace the seals,
replace the hin ges and rivets, recoatin g the
gates, and repair the spillway concrete; and (4)
installation of a new diversion pipe isolation
butterfly valve. The existin
g control gates and
valves are essential features for dam safety and
reservoir operation. The pro ject is needed to
maintain safe and reliable operation of these
aging assets. Failure or malfunction of these

gates and valves will affect dam safet y and
result in reduction of stora ge and reduction o f
water deliveries to SFPUC customers.

10037351 – Moccasin Dam Long-Term

Improvements
The flow capacit y of the existin g spillwa y is
inadequate to protect the Moccasin Dam
against overtoppin g and erosion from severe
flood events. The dam almost overtopped
during the March 2018 storm event when
flows were released from the auxiliar y
spillway and caused si gnificant damage to the
auxiliary spillway. The surroundin g areas and
the upstream diversion dam also sustained
damage from the flood. This pro
ject is needed
for dam safety. The ob jective of this pro ject is
to increase the spillwa y flow capacit y to allow
safe passa ge of flood flows without
overtopping the dam and to protect the
associated facilities within the Moccasin
reservoir boundary against flood damages.

The estimated project cost is $83.2 million and
is within the current 10-year CIP FY 21-30.

Construction is scheduled for 2025-2027.

10014115 – Cherry Dam Spillway - Short
Term Improvements
A spillway release from Cherry Dam in 2010
caused a landslide, blocka ge of the spill
channel, and extensive erosion in the close
proximity of the dam’s right abutment. In
addition, it caused floodin g of the Cherr y
Power Tunnel Adit, and floodin g of a
campground further downstream. En gineering
studies determined that significant long-term
improvements to increase the spillwa y flow
capacity are needed to maintain dam safety.

The objective of this project is to re-establish
containment for the breached spill channel
section and to protect the downstream slope o f
the existin g embankment dam from
uncontrolled releases and erosion in the
interim until the long-term improvements are
implemented. Construction is scheduled for
2025-2026. The estimated project cost of $11.9

million is within the current 10- year CIP FY
A5
Appendices
21-30.

10014114 – Mountain Tunnel Improvement
Project
Mountain Tunnel conve ys the SFPUC water
supply from Kirkwood Powerhouse to Priest
Reservoir. Mountain Tunnel has been in
service since 1925. Due to its a
ge, deferred
maintenance, and construction deficiencies in
the early 1900s, sections of the tunnel linin
g
have deteriorated, some extensively. This
project provides desi gn and construction o f
major tunnel repair and rehabilitation work,
adit and tunnel entr y improvements, access
road improvements, and installation of a new
flow control facilit y at Priest Reservoir to
ensure that the tunnel can reliabl y provide
drinking water to customers for the next 100
years. The flow control structure and isolation
valves will also be used to isolate the tunnel
from Priest Reservoir durin
g tunnel
shutdowns. This will allow the reservoir to
remain full and not backwater for over 8 miles
into the dewatered tunnel. The full reservoir

provides more suppl y water for safel y
extending the tunnel shutdowns to lon ger
durations of 100 da ys for construction inside
the tunnel. These lon ger outa ges will reduce
the need for more typical 60-da y outa ges and
shorten the overall duration of the construction
schedule.

10035086 – Bridge Replacement (4 Bridges)
HHWP is responsible for maintaining 14

bridges located in the Cherr y, Eleanor, and
Hetch Hetchy region. Condition assessments
in 2013 and 2016 determined that, four of these
bridges require substantial rehabilitation or
replacement: Lake Eleanor Dam Brid ge,
O'Shaughnessy Adit Access Brid ge, Cherr y
Lake Road Bridge (public access), and Earl y
Intake Bridge (public access). The pro ject will
be funded in 2 phases. The first phase will
include plannin
g, desi gn and construction o f
Eleanor Dam Bridge and O’Shau ghnessy Adit
Access Brid ge as well as the plannin g and
design of the other two bridges. The
construction of the Earl y Intake Brid ge and
Cherry Lake Road Brid ge will be under Phase

2. 10014108 – Canyon Tunnel Rehabilitation
Canyon Tunnel was built over 45 years ago. A
condition assessment was performed on the
tunnel in 2009 and the tunnel is in generally
good condition, with the exception of the
Hetchy Adit, a tunnel access point. Temporar y
repairs have been made to the plu g at this adit
twice (once in 1989 and once in 2009), but
permanent repairs are needed to reduce
leakage and increase reliability of the system.

The project scope includes installation of a new
reinforced concrete plu g d o w n s t r e a m o f t h e existing plug.

10014110 – Moccasin Wastewater Treatmen
t
Plant
The Moccasin Wastewater Treatment Plant
(WWTP) pro ject proposes to replace the
community’s aging treatment plant.

Moccasin’s treatment plant was installed in the
1970s and has been in continuous service since
that time. Wastewater generated b y the
Moccasin communit y, powerhouse, and
related facilities flows to this treatment plant.

The treatment facilit y currentl y servin g
Moccasin was a “package plant” that was
manufactured off-site, transported to
Moccasin, and installed in 1977. At more than

44-years old, the Moccasin treatment plant has
reached the end of its useful service life, and is
becoming increasingly maintenance intensive.

Additionally, Moccasin has no backup
treatment; accordin gly, failure of the plant
would have significant consequences.

This pro
ject will replace the existin g
wastewater treatment facilities with a
Sequence Batch Reactor (SBR) plant. The

proposed SBR “package plant” is to be a
two-train facility. Each train would have a
capacity of 12,000
gallons per da y to
accommodate average daily dry-weather flow.

A6
Q4-FY2021-2022 (04/01/22 - 06/30/22)
The new plant would continue to treat
wastewater to secondary standards. The new
plant will be provided with up graded
screening, flow monitorin g, flow equalization,
SCADA instrumentation, and automation
features. The packa
ge plant would be
manufactured off-site, trucked to Moccasin,
and then installed beside the current plant. The
existing plant must serve the Moccasin
community while the new plant is bein g
installed and would remain in operation
during construction. The proposed pro
ject is
limited to the treatment plant onl y and does
not include improvements either upstream or
downstream of the plant.

10014116 – JOINT - PROJECT

DEVELOPMENT
The Project Development (PD) Account
captures Program level expenditures. There
are four t
ypes of char ges that will be allocated
to the PD Account: 1) char ges for task orders
for overall pro gram mana gement and pro ject
prioritization tasks, where the costs should be
distributed over all Capital Improvement
Program (CIP) Projects; 2) char
ges for
Infrastructure and Hetch y staff performin g
program level tasks including: capital plan
development, budget management (includin
g
fund management, and cost reallocations), and
quarterl
y report generation tasks, where the
costs should be distributed over all CIP
Projects; 3) char
ges for portal support for the
existing SharePoint Po rtal (includes document
management and pro ject dashboard
reporting); and 4) char ges for work outreach
programs.

A7
A8
Appendices
This page is intentionally left blank.

Project Name Approved Budget Start Finish
Hetchy Capital Improvement Program $807,296,327.49 03-Oct-11 25-May-37 Hetch Hetchy Water Enterpise $807,296,327.49 03-Oct-11 25-May-37 Water Infrastructure $109,533,203.01 26-Mar-12 30-Jun-31 Water Conveyance (Water) $102,664,000.01 01-May-19 13-Mar-28 10035574 SJPL Tesla Valves Replacement $3,740,000.00 01-May-19 30-Dec-22 10035575 SJPL Valve and Safe Entry Improvement $98,924,000.00 01-Jul-19 13-Mar-28 Water Infrastructure Project Development $6,869,203.00 26-Mar-12 30-Jun-31 10014072 WATER ONLY/PROJ DEV $6,869,203.00 26-Mar-12 30-Jun-31 Power Infrastructure $204,242,684.48 29-May-12 30-Jun-31 Powerhouse $120,938,715.48 03-Sep-13 23-Oct-30
10014075 Holm and Other Powerhouse Projects $23,061,080.48 03-Sep-13 30-Dec-21 10014086 Moccasin Powerhouse and GSU Rehabilitation $66,713,635.00 04-Jan-16 13-Apr-27 10036809 Moccasin Powerhouse Bypass Upgrades $15,007,000.00 18-Sep-20 01-Dec-27 10036810 Kirkwood Powerhouse Bypass Upgrades $16,157,000.00 01-Jul-20 23-Oct-30 Switchyard & Substations (Power) $34,248,428.00 01-Sep-15 25-Nov-26 10014087 Warnerville Substation Rehabilitation $34,248,428.00 01-Sep-15 25-Nov-26 Transmission Lines $37,969,000.00 02-Dec-19 31-Jan-25
10035721 Transmission Lines 7/8 Upgrades $37,969,000.00 02-Dec-19 31-Jan-25 Power Infrastructure Project Development $11,086,541.00 29-May-12 30-Jun-31 10014092 POWER ONLY/PROJ DEVELP $11,086,541.00 29-May-12 30-Jun-31 Joint Infrastructure $493,520,440.00 03-Oct-11 25-May-37 Water Conveyance (Joint) $47,251,363.00 01-Feb-16 28-Feb-28 10014088 Moccasin Penstock $47,251,363.00 01-Feb-16 28-Feb-28 Dams & Reservoirs (Joint) $120,194,998.00 01-Mar-17 01-Jul-27 10032903 O'Shaughnessy Dam Outlet Works Phase I $21,206,000.00 01-Feb-18 16-Sep-25 10030758 OSH Dam Access and Drainage Improvements $3,952,211.00 01-Mar-17 28-Feb-23 10037351 Moccasin Dam Long-Term Improvements $83,175,822.00 03-May-21 01-Jul-27 10014115 Cherry Dam Spillway - Short T erm Improvements $11,860,965.00 01-Mar-21 01-Jul-27 Mountain Tunnel $238,218,951.00 03-Oct-11 03-Jun-27
10014114 Mountain Tunnel Improvement Project $238,218,951.00 03-Oct-11 03-Jun-27 Road and Bridges (Joint) $44,287,000.00 27-Feb-20 25-May-37 10035086 Bridge Replacement (4 - Bridges) $44,287,000.00 27-Feb-20 25-May-37 Tunnels (Joint) $8,428,813.00 03-Feb-14 13-Jan-25
10014108 Canyon Tunnel Rehabilitation $8,428,813.00 03-Feb-14 13-Jan-25 Utilities (Joint) $8,794,549.00 01-Sep-21 07-Apr-26
10014110 Moccasin Wastewater Treatment Plant $8,794,549.00 01-Sep-21 07-Apr-26 Joint Infrastructure Project Development $26,344,766.00 25-Jun-12 30-Jun-31 10014116 JOINT - PROJECT DEVELOPMENT $26,344,766.00 25-Jun-12 30-Jun-31 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FY2022 FY 2023 FY2024 FY2025 FY2026 FY2027 FY2028 FY2029 FY 2030 FY2031 FY 2032 APPENDIX B. Hetch Hetchy Capital Improvement Program Approved Project Level Schedules/Budgets Project Management
Planning
Environmental
Design
Right-of-W ay
Bid & Award
Construction Mgmt
Construction
Closeout
Program Mgmt
B1
Q4-FY2021-2022 (04/01/22 - 06/30/22)
APPENDIX C. LIST OF ACRONYMS
AAR Alternative Analysis Report
BLM Bureau of Land Management
CAISO California Independent System
Operator
CATEX Categorical Exemption
CCTV Closed-Circuit Television
CEQA California Environmental Quality Act
CER Conceptual Engineering Report
CIP Capital Improvement Program
CRT Coast Range Tunnel
DB Design, Build
DCR Design Criteria Report
DSOD Division of Safety of Dams
EMB Engineering Management Bureau
FCF Flow Control Facility
FY Fiscal Year
GSU Generator Step-Up
GWH Gigawatt Hours
HCIP Hetch Hetchy Capital Improvement
Program
HH Hetch Hetchy
HHWP Hetch Hetchy Water and Power
HPH Holm Powerhouse
IFR Instream Flow Release
JOC Job Order Contract
KPH Kirkwood Powerhouse
MGD Million Gallons per Day
MID Modesto Irrigation District
MPH Moccasin Powerhouse
NAR Needs Assessment Report
NERC North American Electric Reliability
Corporation
NTP Notice to Proceed
OSH O'Shaughnessy Dam
PD Project Development
PG&E Pacific Gas and Electric Compan
y
PLC Programmable Logic Controllers
PSI Per Square Inch
R&R Renewal and Replacement
SBR Sequence Batch Reactor
SCADA Supervisory Control and Data
Acquisition
SFPUC San Francisco Public Utilities
Commission
SJPL San Joaquin Pipeline
TSC Technical Steering Committee
TTF Tesla Treatment Facility
TUV Tesla Ultra Violet
TVH Tesla Valve House
WSIP Water System Improvement Program
WWTP Wastewater Treatment Plant
C1

CleanPowerSF Sfpuc CommissionSeptember 13, 2022

CleanPowerSF Sfpuc Commission
September 13, 2022