CleanPowerSF Sfpuc Commission
January 11, 2022

1 Hetch Hetchy Capital Improvement Program
Q1 | FY 2021
–
2022
January 11, 2022
Katie Miller, Director
Water Capital Programs
Infrastructure Division
Changes since FY20/21
• No rebaselining of CIP programs (except WSIP).
• Commission approved 10-Year CIP becomes baseline for CIP scopes, schedules and budgets every two years;
• Current 10-Year CIP is for FY21-30, approved February 11, 2020; • Quarterly Reports show variances between project forecasts and approved scopes, schedules and budgets.
• Quarterly reporting only for projects >$5M and
managed by Infrastructure.
• Regional Water System R&R and Water Enterprise-managed projects reported annually.
• Report formatting improvements to better highlight
project performance history.
2 Key Revisions to Quarterly HCIP Report
• New Table 5 - Budget and Schedule Trend Summary
• Overview of project’s budget and schedule trends at major milestones. • Improved transparency for historical changes.
• Table 3.1 – Cost Summary
• Provides “at a glance” information on forecasted budget changes during the quarter.
• Table 6 – Project Performance Summary
• No more “traffic light indicators.”
• Highlights projects with forecasted budget overruns greater than 10% and forecasted schedule delays greater than 6 months.
• Section 7 - Project Status Report
• Project status reports all in one section; consistent order from quarter to quarter.
3 2018 HCIP compared to FY21-30 HCIP
• 2018 HCIP included 19 projects.
• 8 projects were completed by Sept 2021:
• SJPL Rehabilitation
• Lower Cherry Aqueduct
• Moccasin Reservoir Perimeter Security Fence
• Early Intake Switchyard Slope Hazard Mitigation
• Kirkwood Penstock
• Moccasin Facilities New Construction
• Cherry Dam Outlet Works Rehabilitation
• Mountain Tunnel Inspection & Repairs
4 Summary of FY21-30 Approved HCIP
• 11 continuing projects carried forward to FY21-30
HCIP.
• 6 new projects added:
• Moccasin Powerhouse Bypass Upgrades
• Kirkwood Powerhouse Bypass Upgrades
• Transmission Lines 7 & 8 Upgrades
• Moccasin Dam Long Term Improvements
• Cherry Dam Spillway – Short Term Improvements
• Moccasin Wastewater Treatment Plant
• 17 projects with total budget of $763M to be
completed by October 2035.
• Including 3 Project Development accounts, total
HCIP Program budget is $807M.
5 Planning (5),
$211M
Design (1),
$38M
Bid & Award
(0), $0
Construction (4),
$280M
Close-Out (1),
$23M
Completed (0),
$0
Multiple Phase (2),
$166M
Not
Initiated (3),
$37M
On-Hold (1), $8M
$763M
(17 Projects)
* Excluded 3 Project
Development Projects ($44M)
Project Count by Phase*
HCIP Program Status (as of September 2021)
$121M
$686M
Expended Remaining
21%
% Complete
Expenditures
HCIP Program Cost Summary
(from Table 3.1)
7 Program Name Expenditures to
Date ($Million)
Current Approved
Budget ($Million)
Current
Forecasted Cost
($Million)
Cost Variance
($Million)
Water Infrastructure $8 $110 $153 ($44)
Power Infrastructure $53 $204 $204 -
Joint Infrastructure $61 $493 $495 ($2)
Overall HCIP $121 $807 $853 ($46)
Highlights of Reporting Period
8 • Transmission Lines 7/8 Upgrades achieved 95% design. • O’Shaughnessy Dam Access and Drainage Improvements
contractor received Notice To Proceed.
• O’Shaughnessy Dam Outlet Works Phase 1 completed CER for Bulkheads subproject.
• SJPL Tesla Valve Replacement – 66-inch diameter valve being manufactured for installation during Jan-Mar 2022 system shutdown.

SJPL Valve and Safe Entry Improvement
9 Progress and Status:
• Phase 1A achieved 95%
design; NTP by Spring 2022.
• Phase 1B achieved 65%
design; NTP by Spring 2022.
• Cost variance due to safety
improvements, valve
refinements, and improved
construction sequencing.

Approved Budget: $98.9M
Forecast Completion: March 2028
Current Phase: Multiple Phases
Expended to Date: $2.9M
Variances:
• $43.8M (30.7%) over
• 0 days over
Moccasin Powerhouse and GSU
Rehabilitation
10 Progress and Status:
• GSU Transformer: Contractor
disassembled and removed spare
transformer.
• New GSU1 transformer and relay
panels to be delivered Q2, and
installed during Jan-Mar 2022
system shutdown.
• Generator Rewind: 65% design
drawings for long-lead items
completed.

Approved Budget: $66.7M
Forecast Completion: Dec 2027
Current Phase: Multiple Phases
Expended to Date: $5.6M
Variances:
• $0 (0%) over
• 234 days over
Mountain Tunnel Improvements
11 Progress and Status:
• Excavation and construction of
retaining walls for FCF shaft at Priest.
• Development of permanent spoils fill
sites for excavated materials at Priest.
• Safety improvements to adit access
roads.
• Coordination for planned outage Jan-
Mar 2022
Approved Budget: $238.2M
Forecast Completion: June 2027
Current Phase: Construction
Expended to Date: $46.6M
Variances:
• $0 (0%) over
• 0 days over
QUESTIONS?

Services of the San Francisco Public Utilities Commission

OUR MISSION: To provide our customers with high-quality, efficient, and reliable water, power and sewer services in a manner that values environmental and community interests and sustains the resources entrusted to our care.

525 Golden Gate Avenue, 13th Floor
San Francisco, CA 94102
T 415.554.3155
F 415.554.3161
TTY 415.554.3488

DATE: December 30, 2021

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

FROM: Dennis Herrera, General Manager

RE: Hetch Hetchy Capital Improvement Programs Quarterly Report 1 st Quarter / Fiscal Year 2021-2022

Enclosed please find the Hetch Hetchy Capital Improvement Programs (HCIP) Quarterly Report for the 1st Quarter (Q1) of Fiscal Year (FY) 2021-2022. The primary intent of the report is to provide the Commission, stakeholders, and the public with a status summary of the Hetch Hetchy Capital Improvement Programs based on data for the period of July 1, 2021 to September 30, 2021.

Starting with this quarterly report, the Hetch Hetchy Renewal and Replacement (R&R) programs, including Water, Power, and Joint assets, will no longer be reported in this quarterly report. The progress of the Hetch Hetchy R&R programs was recently reported in the Annual Report on Water Enterprise- Managed Capital Improvement Projects, published September 30, 2021.

Approved Scope, Budget & Schedule
In the last quarterly report, the project performance was reported and compared for variance to the 2018 approved HCIP Baseline Budget and Schedule. Going forward and starting with this quarterly report, the project scopes, budgets and schedules in the Commission’s approved 10-Year Capital Plan, as established every two years, specifically the 10-Year Hetch Hetchy Water Capital Improvement Program (CIP), will serve as the approved baseline for comparison to current program and project scope, schedule, and budget forecasts.

Hetch Hetchy Capital Improvement Programs Quarterly Report (Q1 / FY21-22) Page 2 December 30, 2021

Accordingly, the “Approved” project budgets and schedules listed in this report to measure progress and report performance status have been updated since the Q4 FY20-21 Quarterly Report to conform with the 10-Year Hetch Hetchy Water CIP for FY21-30, approved by the PUC Commission on February 11, 2020.

The approved HCIP 10-Year CIP includes the following six (6) new projects:
 10014110 – Moccasin Wastewater Treatment Plant
 10014115 – Cherry Dam Spillway – Short Term Improvements  10035721 – Transmission Lines 7 & 8 Upgrades
 10036809 – Moccasin Powerhouse Bypass Upgrades
 10036810 – Kirkwood Powerhouse Bypass Upgrades
 10037351 – Moccasin Dam Long Term Improvements
They are included in this report. A description of each new project is provided in Appendix A of this report.

Additionally, this Q1 FY21-22 report excludes the following eight (8) projects that have been completed as of September 2021:
 10014066 – SJPL Rehabilitation
 10014068 – Lower Cherry Aqueduct
 10033156 – Moccasin Reservoir Perimeter Security Fence  10014085 – Kirkwood Penstock
 10014091 – Early Intake Switchyard Slope Hazard Mitigation  10014107 – Moccasin Facilities New Construction
 10014109 – Cherry Dam Outlet Works Rehabilitation
 10014113 – Mountain Tunnel Inspection & Repairs

Quarterly Report Format Changes
In response to the Commission’s request for improved tracking of program history and project performance status reporting for greater accountability, starting with the Q1 FY21-22 Quarterly Reports, staff incorporated the following revisions to the format of the CIP Quarterly Reports across all capital programs with the exception of the Water System Improvement Program Quarterly Reports, since that program is ninety-nine percent complete:
 This report now includes a new section titled as “Budget and Schedule Trend Summary,” (Section 5 of this report). The intent of this section is to provide a comprehensive view of each project’s budget and schedule status at milestones from initiation throughout implementation as projects are progressing toward completion. The new Budget and Schedule Trend Summary Table (Table 5) contains all approved HCIP projects that are active in any of planning, design, bid and award, or construction phases of the project.

Hetch Hetchy Capital Improvement Programs Quarterly Report (Q1 / FY21-22) Page 3 December 30, 2021

 The Cost Summary Table 3 in Section 3 of this report contains a new column, titled “Cost Variance Over Reporting Period,” intended to highlight forecasted budget changes during the reporting period and to provide new quarterly information “at a glance”.  The Project Performance Summary Table 6, in Section 6 of the report, includes an additional column titled “% Cost Changes.” To move away from “traffic light” indicators, but still provide useful information, projects with a forecasted cost overrun greater than 10%, or forecasted delay of greater than 6 months or 10%, will be highlighted to visually draw attention to these projects.
 Project Status Reports are now provided in Section 7 of the report; the project order in this Section 7 is consistent with the order of projects listed in Tables 5 and 6 to facilitate consistent sequencing of projects throughout the report.

The highlights for this reporting period are as follows:

Under Contract HH-1000R, Mountain Tunnel Improvement Project, this quarter’s progress included further excavation and retaining wall construction at Priest Reservoir for the Flow Control Facility (FCF) shaft and for the Priest Adit Portal area. Work also continued for the utilization and development of the spoil fill sites at Priest, which will be permanent after the project has completed. The FCF shaft excavation is expected to begin next quarter, in October.

Safety improvement work continued on the adit access roads. Work progressed at the Early Intake Adit for the upcoming installation of a new bulkhead door. Planning and coordination are taking place for the project’s first planned tunnel outage in January 2022. Forecast construction completion is at the end of 2026. Project completion is forecasted to be June 2027.

For Design Build Contract DB-121R2 Moccasin Powerhouse Generators Rehabilitation, the contract is in the Design Phase. Key design review packages were received for long lead items.

Notice to Proceed for the Construction Phase is expected in June 2022.

For Contract HH-1003R, Moccasin Powerhouse Generator Step-Transformer Installation, the contractor disassembled the existing transformer and prepared the disassembled pieces for off haul. The design for the relay panel was approved, and fabrication has commenced. The first transformer has been fabricated and successfully factory tested. It is scheduled for delivery in October.

For Contract HH-1002R, O’Shaughnessy Dam Access and Drainage Improvements, Notice to Proceed was established on September 27, 2021. The contractor will be mobilizing to the work site next quarter.

For San Joaquin Pipeline (SJPL) Tesla Valve Replacement, a new 66-inch diameter butterfly valve and a new 24-inch diameter gate valve are being manufactured. These two valves are required to be installed during the upcoming Mountain Tunnel shutdown starting in January 2022. The valves are critical for the safety and reliability of the system. The project team is closely monitoring the delivery of the valves and proactively working with the vendor and contractor to avoid potential delays related to global supply chain issues.

Hetch Hetchy Capital Improvement Programs Quarterly Report (Q1 / FY21-22) Page 4 December 30, 2021

For San Joaquin Pipeline Valve and Safe Entry, the project has achieved 95% design for Phase 1A and 65% design for Phase 1B. The construction contract HH-1005 for Phase 1A is on schedule to be advertised next quarter.

Attachment

QUARTERLY REPORT
Hetch Hetchy Capital Improvement Programs
July 2021 – September 2021
Published: December 30, 2021
DRAFT

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

DIVISION CAPITAL IMPROVEMENT PROGRAMS

INTRODUCTION

HETCHY CAPITAL IMPROVEMENT PROJECTS (HCIP)

1. Program Description

2. Program
S tatus

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 Close-Out

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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Q1-FY2021-2022 (07/01/21 – 09/30/21)

INTRODUCTION
The Hetch Hetchy Water and Power (HHWP)
Water Division is the division responsible for
operating, managing, and maintaining the
HHWP system and facilities. This includes
water facilities from Hetch Hetchy Reservoir,
located in Yosemite National Park, to Alameda
East Portal, located in Sunol Valley and power
facilities located from Early Intake to 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, over 160 miles of transmission lines,
watershed land, and right-of-way property.

HHWP Water Division 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: Hetchy Capital Improvement
Projects (HCIP) and Renewal and Replacement
(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. The status of
the Hetch Hetchy R&R projects 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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HETCHY CAPITAL IMPROVEMENT PROJECTS (HCIP)

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1 Q1-FY2021-2022 (07/01/21 – 09/30/21)

1. PROGRAM DESCRIPTION
The Hetchy Capital Improvement Projects
(HCIP) are a multi-year group of capital
projects to upgrade existing, aging
infrastructure so that it will meet the challenges
of today and the future. These projects will
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 provide capital improvements
needed to cost-effectively ensure that water
quality, seismic reliability, delivery reliability,
and water supply objectives that have been
established for the regional water system
facilities managed by HHWP are met, while
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 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 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 first (1 st) quarter report for FY2021-2022
presents the progress made on the HCIP
between July 1, 2021 and September 30, 2021.

In the last quarterly report, the project
performance was reported and compared for
variance to the 2018 approved HCIP Baseline
Budget and Schedule. Going forward and
starting with this quarterly report, the project
scopes, budgets and schedules in the
Commission’s approved 10-Year Capital Plan,
as established every two years, specifically the
10-Year Hetch Hetchy Water Capital
Improvement Program (CIP), will serve as the
approved baseline for comparison to current
program and project scope, schedule, and
budget forecasts. Accordingly, the “Approved”
project budgets and schedules listed in this
report to measure progress and report
performance status have been updated since
the Q4 FY20-21 Quarterly Report to conform
with the 10-Year Hetch Hetchy Water CIP for
FY21-30, approved by the PUC Commission on
February 11, 2020.

2 Hetchy Capital Improvement Projects Quarterly Report
The approved HCIP 10-Year CIP includes the
following six (6) new projects:
 10014110 – Moccasin Wastewater
Treatment Plant
 10014115 – Cherry Dam Spillway –
Short Term Improvements
 10035721 – Transmission Lines 7 & 8
Upgrades
 10036809 – Moccasin Powerhouse
Bypass Upgrades
 10036810 – Kirkwood Powerhouse
Bypass Upgrades
 10037351 – Moccasin Dam Long Term
Improvements
They are included in this report. A description
of each new project is provided in Appendix A
of this report. Additionally, this report
excludes the following eight (8) projects that
have been completed as of September 2021:
 10014066 – SJPL Rehabilitation
 10014068 – Lower Cherry Aqueduct
 10033156 – Moccasin Reservoir
Perimeter Security Fence
 10014085 – Kirkwood Penstock
 10014091 – Early Intake Switchyard
Slope Hazard Mitigation
 10014107 – Moccasin Facilities New
Construction
 10014109 – Cherry Dam Outlet Works
Rehabilitation
 10014113 – Mountain Tunnel Inspection
& Repairs

There are now 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. These are included in the adopted
10-Year FY2021-2030 CIP. 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 September 30, 2021 ( 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 September 30, 2021:

Pre-construction, Construction, and Post-
construction.

Figure 2.3 summarizes the environmental
review status of the HCIP projects as of
September 30, 2021. Environmental review is
performed for projects under California
Environmental Quality Act (CEQA).

Figure 2.2 Number of Projects in Pre-construction,
Construction, and Post-Construction
Figure 2.1 Approved Budget for Projects in Each
Phase
3 Q1-FY2021-2022 (07/01/21 – 09/30/21)

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 FY21-30 CIP is $807.30 million
and the Forecasted Cost is $45.51 million over
the approved budget.

Table 3. Cost Summary
Subprograms
Expenditures
To Date
($ Million)
(A)
Current
Approved
Budget
($ Million)
(B)
Q1/FY21-22
Forecasted
Costs
($ Million)
(C)
Cost
Variance
($ Million)
(D = B - C)
Cost
Variance
Over
Reporting
Period
($ Million)
(E )
Water Infrastructure $7.72 $109.53 $153.27 ($43.74) ($43.74) Water Conveyance (Water) $3.93 $102.66 $146.40 ($43.74) ($43.74) Water Infrastructure Project
Development $3.79 $6.87 $6.87 - -
Power Infrastructure $52.71 $204.24 $204.24 - -
Powerhouse $26.32 $120.94 $120.94 - -
Switchyard & Substations (Power) $21.87 $34.25 $34.25 - - Transmission Lines $2.22 $37.97 $37.97 - -
Power Infrastructure Project
Development $2.29 $11.09 $11.09 - -
Joint Infrastructure $60.96 $493.52 $495.29 ($1.77) ($1.77) Dams & Reservoirs (Joint) $7.35 $167.45 $184.13 ($16.69) ($16.69) Mountain Tunnel $46.64 $238.22 $238.22 - -
Roads & Bridges (Joint) $0.97 $44.29 $29.37 $14.92 $14.92 Tunnels (Joint) $0.57 $8.43 $8.43 - -
Utilities (Joint) $0.42 $8.79 $8.79 - -
Joint Infrastructure Project
Development $5.02 $26.34 $26.34 - -
Overall Program Total $121.39 $807.30 $852.81 ($45.51) ($45.51) Figure 2.3 Program Environmental Review
4 Hetchy Capital Improvement Projects Quarterly Report
The overall program negative Cost Variance of
$45.51M in Table 3 can be attributed to the
following factors:
• $43.74M negative variance is due to the
following Water Infrastructure project:
o The 10035575 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 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. PROGRAM SCHEDULE SUMMARY
Figure 4 and
Table 4 compare the FY21 – 30
CIP Approved Schedule and th e Current
Forecast Schedule for the HCIP. As shown in
Table 4, the overall HCIP is currently forecast
to be completed in October 2035.

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 Close-Out or Completed.

During this Quarter (Q1 FY21-22), the following
major milestones were achieved and the project
cost and schedule forecasts were updated
based on the updated milestone cost estimates
accordingly for the following HCIP projects:

1. 95% Design for Phase 1 A of the SJPL
Valve and Safe Entry Improve ment
project

2. 95% Design for the Transmission Lines
7/8 Upgrades project

3. CER for the O’Shaughnessy Dam Outlet
Works Phase 1 project (Subproject A)

4. Awarded Construction Contract for the
OSH Dam Access and Drainage
Improvement project
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 11/08/10 11/08/10 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 11/08/10 11/08/10 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
abcde fghi 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
Subproject A
Subproject B
Subproject C
Subproject D (Planning Only)
Subproject E (Planning Only)
10030758 - OSH Dam Access and Drainage
Improvements
FY21-30 03/01/17 06/28/19 09/01/19 08/21/20 09/27/21 Q1 - FY21-22 10014088 - Moccasin Penstock
FY21-30 12/11/18 04/21/23 10/16/23 06/10/24 04/16/25 Q1 - FY21-22 $142.7 03/13/2807/01/25 $95.3 07/01/25 $98.9 03/13/28 $142.7 Current StatusCERProject Initiation Awarded Construction135% Design 95% Design 07/14/21 (Phase 1A),
10/29/21 (Phase 1B),
09/20/22 (Phase 2) &
05/06/22 (Phase 3)
04/15/22 (Phase 1A),
05/23/22 (Phase 1B),
06/19/23 (Phase 2) &
01/15/23 (Phase 3)
Q1 - FY21-22
11/17/20 04/06/21
03/13/28 TBD TBD
Q1 - FY21-22
7/1/2019 4/16/2021
03/03/21 (Phase 1A),
05/28/21 (Phase 1B),
03/25/22 (Phase 2) &
12/30/21 (Phase 3)
10035574 - SJPL Tesla Valves Replacement
FY21-30 05/01/19 11/27/20 07/28/20
Q1 - FY21-2203/19/2112/07/202
$66.7 04/13/27 $18.0 10/03/18 $66.7 $66.7 $66.7 $66.7 $66.7 12/03/2712/03/2712/03/2712/03/27 Q1 - FY21-22
12/1/2022 (Subproject A),
12/1/2022 (Subproject B) &
9/30/2023 (Subproject C)FY21-30 02/01/ 18
9/30/2021 (Subproject A),
Complete (Subproject B),
2/28/2022 (Subproject C),
8/30/2022 (Subproject D) &
8/30/2022 (Subproject E)
12/1/2021 (Subproject A),
11/30/2021 (Subproject B) &
5/31/2022 (Subproject C)
$21.2 $17.2 $47.9 TBD TBD TBD $47.909/16/25 TBD TBD TBD Q1 - FY21-22
5/1/2022 (Subproject A),
2/01/2022 (Subproject B) &
1/30/2023 (Subproject C)
Table 5. Budget and Schedule Trend Summary
FY21-30
10035721 - Transmission Lines 7/8 Upgrades
FY21-30 07/01/19
$98.9 03/13/28 $95.3
Most Recent CIP
Approved Budget
Project Name
FY21-30 09/18/20 11/07/22 02/24/23 12/26/23
09/24/21 10/03/22
10036809 - Moccasin Powerhouse Bypass Upgrades
FY21-30 01/04/16 05/14/21
07/29/19 (Phase 1),
10/01/19 (Phase 2) &
11/29/22 (Phase 3)
09/09/20 (Phase 1),
04/08/22 (Phase 2) &
01/29/24 (Phase 3)
06/07/21 (Phase 1),
06/08/22 (Phase 2) &
10/02/24 (Phase 3)
Q1 - FY21-22
02/28/25
04/13/27
FY21-30
09/01/15 (Phase 1),
7/01/20 (Phase 2a) &
01/01/21 (Phase 2b)
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)
11/26/18 (Phase 1),
N/A (Phase 2a) &
02/03/25 (Phase 2b)
Q1 - FY21-22
$34.2 11/25/26 11/25/26 11/25/26 11/25/26 11/25/26 03/04/20 11/25/26$27.2 $34.2 $34.2 $34.2 $34.2$24.3 09/16/2512/31/2409/16/25
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
abcde fghi jklm n
Current StatusCERProject Initiation Awarded Construction135% Design 95% Design Table 5. Budget and Schedule Trend Summary
Most Recent CIP
Approved Budget
Project Name
$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 07/01/27 10014114 - Mountain Tunnel Improvement Project
$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
Footnotes:

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

2. This represents the date the Design Criteria Report (DCR) was finalized for Transmission Lines 7/8 Up grade project. CER was not required for the project. 10014115 - Cherry Dam Spillway - Short Term
Improvements
FY21-30 03/01/21 07/15/22 12/02/22 09/08/23 08/20/24 Q1 - FY21-22 10037351 - Moccasin Dam Long-Term Improvements
FY21-30 05/03/21 07/28/22 06/15/23 02/06/25 06/01/26 Q1 - FY21-22 05/25/37$44.3 $44.3 12/30/25 TBD TBD TBD TBD TBD
FY21-30 02/27/20 12/30/21 (Subproject 1) &
02/28/23 (Subproject 2)
05/23/22 (Subproject 1) &
05/05/23 (Subproject 2)
02/20/23 (Subproject 1) &
01/12/24 (Subproject 2)
02/01/24 (Subproject 1) &
02/03/25 (Subproject 2) Q1 - FY21-22
TBD TBD TBD $29.4 07/01/27
FY21-30 10/03/11 12/29/17 05/15/18 07/31/19 10/13/20 Q1 - FY21-22 6 Hetchy Capital Improvement Projects Quarterly Report Q1-FY2021-2022 (07/01/21 - 09/30/21)

6. PROJECT PERFORMANCE SUMMARY* All costs are shown in $1,000s as of 10/02/21 % 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 $ 1,054$ 3,740 - 12/30/22 12/30/2212/30/220%$ 3,740 0 10035575 - SJPL Valve and Safe Entry
Improvement
MP $ 98,924 $ 2,878$ 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 $ 341$ 15,007 - 12/01/27 12/01/2712/01/270%$ 15,007 0 10014086 - Moccasin Powerhouse and
GSU Rehabilitation
MP $ 66,714 $ 5,616$ 66,714 - 04/13/27 12/03/2704/13/270%$ 66,714 (234) Switchyard & Substations (Power)
10014087 - Warnerville Substation
Rehabilitation
CN $ 34,248 $ 21,866$ 34,248 - 11/25/26 11/25/2611/25/260%$ 34,248 0 Transmission Lines
10035721 - Transmission Lines 7/8
Upgrades
DS $ 37,969 $ 2,225$ 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 Hetchy Capital Improvement Projects Quarterly Report Q1-FY2021-2022 (07/01/21 - 09/30/21) % 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
Dams & Reservoirs (Joint)
10014088 - Moccasin Penstock PL $ 47,251 $ 5,131$ 47,251 - 02/28/28 02/28/2802/28/280%$ 47,251 0 10030758 - OSH Dam Access and
Drainage Improvements
CN $ 3,952 $ 1,051$ 3,952 - 02/28/23 02/28/2302/28/230%$ 3,952 0 10032903 - O'Shaughnessy Dam Outlet
Works Phase I
PL $ 21,206 $ 870$ 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 $ 67$ 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 $ 228$ 11,861 - 07/01/27 07/01/2707/01/270%$ 11,861 0 Mountain Tunnel
10014114 - Mountain Tunnel
Improvement Project
CN $ 238,219 $ 46,639$ 238,219 - 06/03/27 06/03/2706/03/270%$ 238,219 0 Roads & Bridges (Joint)
10035086 - Bridge Replacement (4 -
Bridges)
PL $ 44,287 $ 970$ 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.

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. 8 Q1-FY2021-2022 (07/01/21 - 09/30/21)

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
$1.05 M
Forecast
May-19 Dec-22
May-19 Dec-22
Project Schedule:
$3.74 M
Project Percent Complete: 29.6%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
Current Forecast 05/31/2208/26/20 04/06/21
Components of 66-inch Butterfly Valve being assembled in factory
Progress and Status:

This project is di
vided into 2 sub-projects: A) the
pre-purchase and installation of Tesla Valv
e TUV-101;
B) the procurement and installation of Tesla Valves
TUV-201, TUV-301 & TUV-401.

Subproject A:

In this quarter, the City-pu
rchased
66-inch diameter butterfly valve and actuat or were
being manufactured in South Korea and Germany,
respectively. The JOC contractor continued to work on
submittals focusing on long lead items includin
g a new
24-inch diameter butterfly valve.

Subproject B: The procurement and installation of the
remaining valves TUV 201, 301, and 401
will follow the
traditional design-bid-build project delivery method.

To optimize
the construction and reduce
impact on
water delivery, the scope and bud
get for the
improvements to TUV201, 301 and 401 will transfer out
of this project and become a part of the SJPL Valve and Safe Entry Improvement project.

Issues and Challenges:

The global supply chain and port
congestion issues
may cause delay to the delivery of the materials and
equipment for this project. This may
jeopardize the
project schedule to complete the work durin g the
upcoming winter shutdown of the San Joaquin
Pipeline from January to March 2022. The pro ject team has been actively monitoring the situation and
investigating possible risk mitigation measures.
9 N/A
Hetchy Capital Improvement Projects Quarterly Report
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 a ddition, 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 syst em 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
$2.88 M
Forecast
Jul-19 Mar-28
Jul-19 Mar-28
Project Schedule:
$142.66 M
Project Percent Complete: 4.8%
Approved Approved
Actual Cost; Forecast Approved;
Bid*
Advertisement
Construction*
Final Completion
Environmental*
ApprovalKey Milestones: Construction*
NTP
(A) 11/06/21Current Forecast (A) 09/30/24(A) 10/14/21 (A) 04/15/22 (B) 12/03/21 (B) 06/07/24(B) 10/14/21 (B) 05/23/22
(C) 12/21/22 (C) 05/24/27(C) 12/06/22 (C) 06/19/23
(D) 07/12/22 (D) 08/01/24(D) 05/06/22 (D) 01/15/23
* (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 Stack.

Construction Photo of a Victaulic Cap and Coupling SJPL 1 @ Oakdale
Progress and Status:

This project is divided into four (4) sub-projects, as
outlined in the above footnote:

For Phase 1A, the 95 % design was completed in July.

The project
team continued to work to wards the 100%
design. For Phase 1B, th e 65% desi gn was also
completed in July.

The project team continued to work
towards the 95% design. The desi gn of the other two
phases ha
s not yet started
Issues and Challenges:

The forecasted cost is greater than the approved bud
get
due to scope refinements to improve
safe entr y and
resequencing of construction to better coordina te wi th system shutdowns in Fall/Winter to minimize the
impact on water delivery.
10 Q1-FY2021-2022 (07/01/21 - 09/30/21)
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
$0.34 M
Forecast
Sep-20 Dec-27
Sep-20 Dec-27
Project Schedule:
$15.01 M
Project Percent Complete: 4.1%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
08/27/24Current Forecast 06/01/2708/26/24 02/28/25
Progress and Status:

The project is in planning. The consultant is workin g
on the Needs Assessment Report (NAR) and will be gin
developing the Alternative Analysis Report (AAR) in
the next quarter.

Issues and Challenges:

None at this time.
11 Hetchy Capital Improvement Projects Quarterly Report 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 objective 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 ta il connection system with a new T-tail connection s ystem, and supply of a new rotor rim for each generator following inspection and testing. The pro ject will also include replacement of two generator step-up transformers (G SUs) with new oil containment barriers, and remainin g plant work including: replacing 480V switchgear, 13.8kV switchgear, 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
$5.62 M
Forecast
Jan-16 A pr-27
Jan-16 Dec-27
Project Schedule:
$66.71 M
Project Percent Complete: 6.5%
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) 06/21/21
(C) 04/01/24 (C) 06/07/27(C) 09/28/22 (C) 10/02/24
Delta Star GSU1 Transformer in Spare Slot
* (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 sub-pro jects, as outlined in the above footnote. For Subproject A, HH-1003R
MPH Generator Step-up (GSU) Transformer
Installation, the contractor disassembled the spare
transformer and moved it outside of the switch yard
ready for removal. The GSU1 transformer will be
delivered in October and the relay panels are scheduled for delivery in November. For Sub-project B, DB-121R2
MPH Generators Rehabilitation, sixty-five (65) percent
design drawings were received for key long lead items.

Notice to Proceed for Construction is scheduled for
June 2022. For Sub-pro ject C, MPH S ystems Upgrades,
the needs assessment report (NAR), includin g the
prioritization of scope items, was submitted in
September, and will be reviewed b y the Technical
Steering Committee (TSC) next quarter. The task order
for consultant plannin g and desi gn support is
anticipated to receive NTP in December.

Issues and Challenges:

Subproject A: The GSU Rela y panels are required to be
on site by 11/29/21 prior to the Mountain Tunnel
outage in January and February.

Subproject B: Several long leads items are comin g from Brazil, Canada, and Europe. There are concerns with
the timeliness of material deliver y due to the recen t backlog of container ships in the California ports.
12 Q1-FY2021-2022 (07/01/21 - 09/30/21)
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
$21.87 M
Forecast
Sep-15 Nov-26
Sep-15 Nov-26
Project Schedule:
$34.25 M
Project Percent Complete: 66.7%
Approved Approved
Actual Cost; Forecast Approved;
Bid*
Advertisement
Construction*
Final Completion
Environmental*
ApprovalKey Milestones: Construction*
NTP
(A) 01/24/17Current Forecast (A) 12/31/21(A) 03/31/16 (A) 10/05/17 (B) 09/06/24 (B) 05/04/26(B) 02/03/25
* (A) Warnerville Substation Phase 1 – DB-127R; (B) Warnerville Substation Phase 2.

Typical 230KV SF6 Breaker to be Installed as Part of Phase II
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
team received 100% desi gn for the breaker failure
contingency plan, and this will be finalized next
quarter.

Contract HH-1008 Warnerville Substatio
n
Rehabilitation Phase II, w ill be a design-bid-build
contract. The team continued preliminar y plannin g
meetings with Hetch Hetchy Operations. A draf t
facility outage schedule has been developed to anal yze potential outage windows during construction.

The Professional Service contract for electrical
engineering support was awarded during the quarter.

Notice to Proceed is anticipated to be issued i n
November. The Task Order scope for Plannin g,
Engineering, and Services durin g Construction for this project has been developed and is under review.

Issues and Challenges:

None at this time.
13 Hetchy Capital Improvement Projects Quarterly Report 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: DesignProgram: Power Infrastructure Environmental Status: Active Project Cost:

Forecast
Actual
$37.97 M
$2.22 M
Forecast
Dec-19 Jan-25
Dec-19 Jan-25
Project Schedule:
$37.97 M
Project Percent Complete: 3.5%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
01/03/22Current Forecast 06/28/2412/30/21 10/03/22
Progress and Status:

Significant progress was achieved in the environmental
phase with the completion of the Final Historical
Resources Evaluation Report, the Final Archaeolo gical
Resources Evaluation Report, and the Final Biolo gical
Resources Evaluation Report. All three of these reports support the Addendum to the existin
g Final Miti gated
Negative Declaration for the Rehabilitation of the
Existing San Joaquin Pipelines, file number 2007.1129E.

This Addendum will be the guiding environmental
permit for the project. In addition to this si gnificant Environmental pro gress, after havin g previousl y
completed the 65% desi gn submission ahead of
schedule, the desi gn engineering consultant submitted
the 95% design on schedule this quarter.

Issues and Challenges:

None at this time.

Transmission Line 7/8 Tower 508S Looking North
14 Q1-FY2021-2022 (07/01/21 - 09/30/21)
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 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 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
$5.13 M
Forecast
Feb-16 Feb-28
Feb-16 Feb-28
Project Schedule:
$47.25 M
Project Percent Complete: 10.5%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
10/08/24Current Forecast 08/24/2710/08/24 04/16/25
Interior inspection rope access
Progress and Status:

In this quarter, the consultant continued to address the comments on condition assessment and the structural
evaluation. In addition, the pro ject team a greed on the project scope for the needs assessment phase and the
alternatives analysis.

Issues and Challenges:

None at this time.
15 Hetchy Capital Improvement Projects Quarterly Report 10030758 - OSH Dam Access and Drainage Improvements
Project Description: 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 steepwalled Hetch Hetchy Valley. The interior workin gs of the 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 We lls, 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 pro ject will be
advertised as O’Shaughnessy 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.

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

Forecast
Actual
$3.95 M
$1.05 M
Forecast
Mar-17 Feb-23
Mar-17 Feb-23
Project Schedule:
$3.95 M
Project Percent Complete: 26.7%
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:

Notice to Proceed was established on September 27,
2021 for Contract HH-1002R. The contractor will be
mobilizing to the work site next quarter.

Issues and Challenges:

None at this time.

Inclined Stairway OSH Dam
16 Q1-FY2021-2022 (07/01/21 - 09/30/21)
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 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 a ging 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
$0.87 M
Forecast
Feb-18 Se p-25
Feb-18 Se p-25
Project Schedule:
$47.89 M
Project Percent Complete: 12.9%
Approved Approved
Actual Cost; Forecast Approved;
Bid*
Advertisement
Construction*
Final Completion
Environmental*
ApprovalKey Milestones: Construction*
NTP
(A) 05/05/22Current Forecast (A) 03/14/25(A) 09/29/22 (A) 12/06/22 (B) 05/05/22 (B) 03/14/25(B) 09/29/22 (B) 12/06/22
(C) 04/14/23 (C) 11/29/24(C) 08/25/23 (C) 09/15/23
* (A) Bulkhead; (B) Access and Drainage; (C) Instream Flow Release Progress and Status:

During this quarter, the Conceptual En gineering
Report for the Bulkhead Project was completed. The
planning phase for the IFR Valve Replacement Pro ject
has begun. Based on priorities and available fundin g,
the scopes of work for multiple pro jects at the
O’Shaughnessy Dam were re-evaluated and scope
changes are forecasted for this project. Replacement of the damaged existing instream flow release (IFR)

valves was deemed critical and moved from the later
Phase 2 project to this Phase 1 scope. Also, some of the improvements for safe access b y personnel and for
drainage reduction in the dam gallery were removed
from the O’Shau ghnessy Dam Access and Draina ge
scope and will be added to this Phase 1 scope. The
current approved Phase 1 scope for refurbishment of
the existin
g slide gates, rehabilitation of the drum
gates, and installation of a new diversion pipe isolatio n valve are being considered for deferment to Phase 2
due to limitation in available funding for Phase 1. The current pro
ject forecasted budget and schedule include
scope for installation of new bulkheads (original
scope), replacement of the IFR valves, installation o f safe access and draina ge improvements, and fundin g
for the plannin g phase for the drum gates and slide
gates refurbishment.

Issues and Challenges:

The current planning-level desi gn and construction
cost estimates are hi gher than the approved bud get
due to the additional forecasted scope from the IFR
Valves Replacement and the dam
gallery access and
drainage improvements, and the hi gher level of detail
included in the most recent construction cost estimate
for installation of the new bulkhead system. The

schedule forecast for installation of the new bulkhead
system has been likewise extended to allow time for
additional inspections, underwater modification of the
existing slots and corroded inlet surfaces, and
installation of the bulkheads using divers. Based on the changes to Phase 1 scope discussed above, the pro ject
team has forecast that the Phase 1 construction will
now be completed under multiple contracts, and the
final subproject of Phase 1 will be completed in late
2025.
17 Hetchy Capital Improvement Projects Quarterly Report 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
$0.07 M
Forecast
May-21 Jul-27
May-21 Jun-28
Project Schedule:
$73.18 M
Project Percent Complete: 1.4%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
01/26/26Current Forecast 12/30/2701/29/26 07/27/26
Moccasin Dam Upstream Entrance to Existing Auxiliary
Spillway (looking upstream)
Progress and Status:

The en gineering consultant continues work to
supplement and finalize the alternatives anal ysis
report for this project. The alternative anal ysis is
currently scheduled to be completed b y the end of the
next quarter.

Issues and Challenges:

None at this time.
18 Q1-FY2021-2022 (07/01/21 - 09/30/21)
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: Not Initiated Project Cost:

Forecast
Actual
$11.86 M
$0.23 M
Forecast
Mar-21 Jul-27
Mar-21 Jul-27
Project Schedule:
$11.86 M
Project Percent Complete: 6.0%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
03/29/24Current Forecast 12/31/2608/15/24 10/31/24
Cherry Valley Dam Spillway
Progress and Status:

The en gineering consultant continued work on the
alternative analysis study for the Cherry Dam Spillway
short-term improvements in Q4. The alternative
analysis is scheduled to complete in March 2022.

Issues and Challenges:

None at this time.Issues and Challenges:

None at this time.
19 Hetchy Capital Improvement Projects Quarterly Report 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
$46.64 M
Forecast
Oct-11 Jun-27
Oct-11 Jun-27
Project Schedule:
$238.22 M
Project Percent Complete: 32.1%
Approved Approved
Actual Cost; Forecast Approved;
Bid
Advertisement
Construction
Final Completion
Environmental
ApprovalKey Milestones: Construction
NTP
11/13/19Current Forecast 12/03/2601/14/20 01/29/21
Priest Spoils Disposal Site Development underway
Progress and Status:

This quarter’s pro gress included further excavatio n
and retaining wall construction at Priest Reservoir for the Flow Control Facility (FCF) shaft and for the Priest Adit Portal area. Work also continued for the
utilization and development of the spoil fill sites at
Priest, which will be permanent after the pro
ject has
completed. The FCF shaft excavation is expected to
begin in October 2021 with the Priest Adit work
expected in January 2022. Safet
y improvement work
continued on the adit access roads. Work pro gressed at the Early Intake Adit for the upcomin g installation of a new bulkhead door. Plannin g and coordination
continued for the project’s first planned tunnel outa ge in January 2022.

Issues and Challenges:

None at this time.
20 Q1-FY2021-2022 (07/01/21 - 09/30/21)
10035086 - Bridge Replacement (4 - Bridges)
Project Description: 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 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 Int
ake Bridge (public access). The project will be funded in 2 phases.

The first phase
will include planning, design and construction of Eleanor Dam Bridge and O’Shaughnessy Adit Access Bridge. The planning, design and construction of the Early Intake Bridge 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
$0.97 M
Forecast
Feb-20 Ma y-37
Feb-20 Jul-27
Project Schedule:
$29.37 M
Project Percent Complete: 43.4%
Approved Approved
Actual Cost; Forecast Approved;
Bid*
Advertisement
Construction*
Final Completion
Environmental*
ApprovalKey Milestones: Construction*
NTP
(A) 08/01/23Current Forecast (A) 12/31/25(A) 06/30/23 (A) 02/01/24 (B) 08/01/24 (B) 01/29/27(B) 02/03/25
* (A) Lake Eleanor Dam Bridge; and (B) O’Shaughnessy Adit Access Bridge.

O’Shaughnessy Adit Bridge and Geotechnical Exploration
Progress and Status:

For the O’Shaughnessy Adit Access Bridge , two
geotechnical drill holes were completed during the
quarter. The consultant worked on the geotechnical
evaluation and geotechnical data report. For Lake
Eleanor Dam Brid ge
, the engineering consultant began
work on the alternative analys is for rehabilitation of the existing bridge.

Issues and Challenges:

The variances between
the approved budget and
schedule and the forecasted
budget and schedule are
due to division of the proje ct into two phases, with the planning, design and construction of the Lake
Eleanor Dam Bridge and O'Shaughnessy Adit Access
Bridge within the first phase and funded in the
FY21-30 10-Year CIP; the funding for the planning,
design and construction
of the other two of the four
bridges has been deferred until after 2030.
21 (B) 07/31/24
Q1-FY2021-2022 (07/01/21 - 09/30/21)I.A Hetchy Capital Improvement Projects 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
Power Infrastructure
$ 3,653,575$ 3,653,57505/23/2305/23/2306/07/21
10014086 - Moccasin Powerhouse
Transformers Installation - HH-1003R - -6 . 8 %
$ 28,898,986$ 28,898,98606/17/2406/17/2406/21/21
10014086 - Moccasin Powerhouse
Generator Rehab - DB-121R2
- -2 . 7 %
$ 14,591,450$ 14,591,45012/31/2107/09/1910/05/17
10014087 - Warnerville Switchyard -
DB-127R **
(906) - 90.0%
Joint Infrastructure
$ 1,648,556$ 1,648,55608/21/2208/21/2209/27/21
10030758 - OSH Dam Access &
Drainage Improvement - HH-1002R
- -0 . 0 %
$ 152,870,508$ 152,870,50812/03/2612/03/2601/29/21
10014114 - Mountain Tunnel
Improvement - HH-1000R
- - 10.3%
Program Total
for On-Going
Construction $ 201,663,075 $ 201,663,075
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. 22 9. PROJECTS IN CLOSE-OUT
Q1-FY2021-2022 (07/01/21 - 09/30/21)
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 $ 12,872,280 $ 15,327,522TOTAL $ 12,872,280
23 Hetchy Capital Improvement Projects Quarterly Report

10. COMPLETED PROJECTS
Project
Expenditures
To Date
Approved
Project
Budget
Approved
Project
Completion
Project Title Actual
Project
Completion
Water Infrastructure
Water Conveyance (Water)
$ 4,622,228$ 5,370,00002/28/1912/31/1810014066-HCIP - SJPL Rehabilitation
$ 12,486,246$ 12,484,29304/30/2104/30/2110014068 - Lower Cherry Aqueduct
Dams & Reservoirs
$ 3,405,124$ 5,308,00008/20/2107/01/2110033156 - Moccasin Reservoir Perimeter Security Fence
Power Infrastructure
Switchyard & Substations (Power)
$ 2,175,083$ 2,620,17209/30/2009/30/2010014091 - Early Intake Switchyard Slope Hazard
Mitigation
Water Conveyance (Power)
$ 2,826,822$ 2,826,82201/31/2204/30/2110014085 - Kirkwood Penstock Joint Infrastructure
Buildings (Joint)
$ 19,504,642$ 19,504,64204/30/2104/30/2110014107 - Moccasin Facilities New Construction
Dams & Reservoirs (Joint)
$ 9,533,435$ 9,728,01806/30/2006/30/2010014109 - Cherry Dam Outlet Works Rehabilitation
Mountain Tunnel
$ 21,494,786$ 21,426,73912/02/1912/02/1910014113 - Mountain Tunnel Inspection & Repairs (completed)
$ 79,268,686 $ 76,048,366TOTAL
24 Appendices Q1-FY2021-2022 (07/01/21 - 09/30/21)

APPENDICES

A PROJECT DESCRIPTIONS

B APPROVED PROJECT LEVEL SCHEDULES / BUDGETS

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

Q1-FY2021-2022 (07/01/21 - 09/30/21)
APPENDIX A. PROJECT DESCRIPTIONS
The project titles and descriptions are updated
according to the approved 10- year CIP for
FY21-30.

HETCHY CAPITAL IMPROVEMENT

PROJECTS (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.

As part of the SFPUC’s Water S
ystem
Improvement Program (WSIP), the Emer y and
Pelican crossover vaults were installed and the
Roselle crossover vault was modified to allow
for flows between SJPLs and isolation of SJPL
segments for inspection and maintenance. The

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
Q1-FY2021-2022 (07/01/21 - 09/30/21)
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
Q1-FY2021-2022 (07/01/21 - 09/30/21)
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
construction of the Early Intake Bridge and
Cherry Lake Road Bridge 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 ge nerally
good condition, with the exception of the
Hetchy 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 project scope includes installation of a new
reinforced concrete plu
g do
wnstream of the
existing plug.
10014110 – Moccasin Wastewater Treatment
Plant
The Moccasin Wastewater Treatment
Plant
(WWTP) project 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 ge nerated by the
Moccasin community, powerhouse, and
related facilities flows to this treatment plant.

The treatment facilit
y 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
becoming increasingly maintenance intensive.

Additionally, Moccasin has
no backup
treatment; accordingly, failure of the plant

would have significant consequences.

This project will replace the existing
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 ga llons per da
y to
accommodate average daily dry-weather flow.
21-30.
10014114 – Mountain Tunnel Improvement

Project
Mountain Tunnel conve ys the SFPUC water
supply from Kirkwood Powerhouse to Priest

Reservoir. Mou
ntain 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 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 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 long er outa ges will reduce
the need for more typical 60-da y outages 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
Bridge, Cherr y
Lake Road Bridge (public access), and
Early
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 Bridge .

The planning, design and
A6
Q1-FY2021-2022 (07/01/21 - 09/30/21)
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 Projects $807,296,327.49 03-Oct-11 25-May-37 Water Infrastructure $109,533,203.01 26-Mar-12 30-Jun-31 10035574 SJPL Tesla V alves Replacement $3,740,000.00 01-May-19 30-Dec-22 10035575 SJPL V alve and Safe Entry Improvement $98,924,000.00 01-Jul-19 13-Mar-28 10014072 WA TER 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 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 10014087 Warnerville Substation Rehabilitation $34,248,428.00 01-Sep-15 25-Nov-26 10035721 Transmission Lines 7/8 Upgrades $37,969,000.00 02-Dec-19 31-Jan-25 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 10014088 Moccasin Penstock $47,251,363.00 01-Feb-16 28-Feb-28 10014110 Moccasin Wastewater Treatment Plant $8,794,549.00 01-Sep-21 07-Apr-26 10032903 O'Shaughnessy Dam Outlet Works Phase I $21,206,000.00 01-Feb-18 16-Sep-25 10014108 Canyon Tunnel Rehabilitation $8,428,813.00 03-Feb-14 13-Jan-25 10014114 Mountain Tunnel Improvement Project $238,218,951.00 03-Oct-11 03-Jun-27 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 Term Improvements $11,860,965.00 01-Mar-21 01-Jul-27 10035086 Bridge Replacement (4 - Bridges) $44,287,000.00 27-Feb-20 25-May-37 10014116 JOINT - PROJECT DEVELOPMENT $26,344,766.00 25-Jun-12 30-Jun-31

F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F 012 FY2013 FY2014 FY2015 FY2016 FY2017 FY2018 FY2019 FY2020 FY2021 FY2022 FY2023 FY2024 FY2025 FY2026 FY2027 FY2028 FY2029 FY2030 APPENDIX B.  Hetch Hetchy Improvement Projects Approved Project Level Schedules/Budgets Q1-FY2021-2022 (07/01/21 - 09/30/21) B1
Q1-FY2021-2022 (07/01/21 - 09/30/21)
APPENDIX C. LIST OF ACRONYMS
AAR Alternative Analysis Report
CAISO California Independent System
Operator
CATEX Categorical Exemption
CEQA California Environmental Quality Act
CER Conceptual Engineering Report
CIP Capital Improvement Program
COVID-
19 Coronavirus Disease of 2019
CRT Coast Range Tunnel
DB Design, Build
DCR Design Criteria Report
FCF Flow Control Facility
FY Fiscal Year
GSU Generator Step-Up
GWH Gigawatt Hours
HCIP Hetchy Capital Improvement Projects
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 Company
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