HomeMy WebLinkAbout05-08-2025 Whale Rock Commission Agenda Packet
Whale Rock Commission
AGENDA
Thursday, May 8, 2025, 10:30 a.m.
Council Hearing Room, 990 Palm Street, San Luis Obispo
The Whale Rock Commission holds in-person meetings. Zoom participation will not be supported.
Attendees of City Council or Advisory Body meetings are eligible to receive one hour of
complimentary parking; restrictions apply, visit Parking for Public Meetings for more details.
INSTRUCTIONS FOR PUBLIC COMMENT:
Public Comment prior to the meeting (must be received 3 hours in advance of the meeting):
Mail - Delivered by the U.S. Postal Service. Address letters to the City Clerk's Office at 990
Palm Street, San Luis Obispo, California, 93401.
Email - Submit Public Comments via email to advisorybodies@slocity.org. In the body of your
email, please include the date of the meeting and the item number (if applicable). Emails will not
be read aloud during the meeting.
Voicemail - Call (805) 781-7164 and leave a voicemail. Please state and spell your name, the
agenda item number you are calling about, and leave your comment. Verbal comments must be
limited to 3 minutes. Voicemails will not be played during the meeting.
*All correspondence will be archived and distributed to members, however, submissions received
after the deadline may not be processed until the following day.
Public Comment during the meeting:
Meetings are held in-person. To provide public comment during the meeting, you must be
present at the meeting location.
Electronic Visual Aid Presentation. To conform with the City's Network Access and Use Policy,
Chapter 1.3.8 of the Council Policies & Procedures Manual, members of the public who desire
to utilize electronic visual aids to supplement their oral presentation must provide display-ready
material to the City Clerk by 12:00 p.m. on the day of the meeting. Contact the City Clerk's
Office at cityclerk@slocity.org or (805) 781-7114.
Pages
1.CALL TO ORDER
Chair Erica A. Stewart will call the Regular Meeting of the Whale Rock
Commission to order.
2.PUBLIC COMMENT FOR ITEMS NOT ON THE AGENDA
The public is encouraged to submit comments on any subject within the
jurisdiction of the Whale Rock Commission that does not appear on this agenda.
Comments are limited to 3 minutes per person. Although the Commission will
not take action on items presented during the Public Comment Period, the Chair
may direct staff to place an item on a future agenda for discussion.
3.CONSENT
Matters appearing on the Consent Calendar are expected to be non-
controversial and will be acted upon at one time. A member of the public may
request the Whale Rock Commission to pull an item for discussion. The public
may comment on any and all items on the Consent Agenda within the three-
minute time limit.
3.a CONSIDERATION OF MINUTES - JUNE 3, 2024 WHALE ROCK
COMMISSION MINUTES
5
Recommendation:
To approve the Whale Rock Commission Minutes of June 3, 2024.
4.ELECTION OF OFFICERS
4.a ANNUAL ELECTION OF THE WHALE ROCK COMMISSION CHAIR,
VICE CHAIR, AND SECRETARY
11
Historically, the position of Chair rotates among members of the
Commission. At the pleasure of the Commissioners, the next rotation
would be Whitney McDonald, Chair; Luis Martinez, Vice Chair; and
Emily Jackson, Secretary. After the election of officers, the new Chair
presides over the meeting.
Recommendation:
Appoint Whitney McDonald as Commission Chair, Luis Martinez as
Commission Vice Chair, and Emily Jackson as Commission Secretary.
5.PRESENTATIONS
5.a 2024 - 2025 ACCOMPLISHMENTS 13
Receive a presentation of staff's 2024 - 2025 accomplishments.
5.b CATHODIC PROTECTION STUDY OF THE WHALE ROCK PIPELINE 15
Receive a presentation outlining the 24-25 Cathodic Protection study of
the Whale Rock pipeline.
5.c PIPELINE ALTERNATIVE ANALYSIS 75
Receive a presentation discussing the results of the alternative pipeline
replacement study.
6.BUSINESS ITEMS
6.a FY 2023 -24 FINANCIAL STATEMENTS 117
Receive a presentation of the 2023 - 24 Whale Rock Financial
Statements.
Recommendation:
Receive and file the 2023 -24 Whale Rock Financial Statements.
6.b 2025 - 26 WHALE ROCK RESERVOIR BUDGET 119
Receive a presentation on the 2025 - 26 Budget for the Whale Rock
Reservoir, including capital improvement projects and Commissioner
contributions, and consider adopting the budget.
Recommendation:
Approve the 2025 - 26 Whale Rock Reservoir Budget.
7.COMMISSION REPORTS & COMMUNICATION
Commissioners may make announcements, report on activities, or refer items to
staff for study and follow-up at a subsequent Whale Rock Commission meeting.
8.ADJOURNMENT
The next Regular Meeting of the Whale Rock Commission is Tentatively
scheduled for May 2026 in the Council Hearing Room at City Hall, 990 Palm
Street, San Luis Obispo.
LISTENING ASSISTIVE DEVICES are available -- see the Clerk
The City of San Luis Obispo wishes to make all of its public meetings accessible
to the public. Upon request, this agenda will be made available in appropriate
alternative formats to persons with disabilities. Any person with a disability who
requires a modification or accommodation in order to participate in a meeting
should direct such request to the City Clerk’s Office at (805) 781-7114 at least
48 hours before the meeting, if possible. Telecommunications Device for the
Deaf (805) 781-7410.
Agenda related writings or documents provided to the Whale Rock Commission
are available for public inspection on the City’s website, under the Public
Meeting Agendas web page: https://www.slocity.org/government/mayor-and-
city-council/agendas-and-minutes. Meeting audio recordings can be found on
the City’s website: https://opengov.slocity.org/WebLink/Browse.aspx?id=175388
Whale Rock Commission Minutes
Whale Rock Commission Meeting – May 8, 2025
Agenda Item 1 – Draft 2024 Whale Rock Commission Meeting Minutes
FROM: Aaron Floyd, Utilities Director
PREPARED BY Noah Evans, Whale Rock Reservoir Supervisor
SUBJECT: Draft 2024 Whale Rock Commission Meeting Minutes
RECOMMENDATION
Approve the Draft June 3, 2024, Whale Rock Commission Meeting Minutes.
June 3, 2024
Special Meeting
CALL TO ORDER
A Special Meeting of the Whale Rock Commission was called to order on Monday, June
3, 2024, at 3:00 p.m. in the Council Hearing Room located at City Hall, 990 Palm Street,
San Luis Obispo, by City Staff.
ROLL CALL
Present: Chair Chad Worth, Vice Chair Erica A. Stewart, Secretary Whitney
McDonald, Commissioner - Emily Jackson, Commissioner Luis
Martinez
Absent: Commissioner Erica A. Stewart
Staff Present: Noah Evans, Whale Rock Supervisor; Mychal Boerman, Deputy
Director-Water; Aaron Floyd, Utilities Director; Serenity Stuckenberg,
Supervising Administrative Assistant
PUBLIC COMMENT FOR ITEMS NOT ON THE AGENDA
None
--End of Public Comment--
CONSIDERATION OF MINUTES
Page 5 of 141
Minutes Whale Rock Commission Meeting – May 4, 2023
1. WHALE ROCK COMMISSION MINUTES OF MAY 4, 2023
ACTION: MOTION BY COMMISSIONER JACKSON, SECOND BY COMMISSIONER
MCDONALD, 4-0-1 (Vice Chair Stewart absent) to approve the minutes of the Regular
Meeting of the Whale Rock Commission of May 4, 2023.
No comment
2. ELECTION OF OFFICERS – ANNUAL ELECTION OF THE WHALE ROCK
COMMISSION CHAIR, VICE CHAIR, AND SECRETARY
Recommendation: Appoint Erica A. Stewart as Commission Chair, Whitney
McDonald as Commission Vice-Chair, and Luis Martinez as Commission Secretary.
ACTION: MOTION BY COMMISSIONER MCDONALD, SECOND BY
COMMISSIONER JACKSON CARRIED 4-0-1, (Vice Chair Stewart absent) that
Commissioner Stewart is appointed as Chair, Commissioner McDonald is appointed
as Vice-Chair and Commissioner Martinez as Secretary. The meeting was turned over
to the new Chair, Stewart.
No Comment
PRESENTATION
3. 2023-24 ACCOMPLISHMENTS
Noah Evans, Whale Rock Supervisor Provided a presentation of the 2023-24
accomplishments.
Stewart concerned about sinkholes near public spaces as well as duplicity for
repairs aka Hank and his son.
McDonald asked about whether the repairs were FEMA eligible.
Worth asked about relining and if it had to happen at once or in phases – the study
to provide recommendations and alternatives.
Public Comments:
None
--End of Public Comment--
ACTION: No action taken.
4. WHALE ROCK STANDBY ROTATION MODIFICATIONS
Mychal Boerman, Deputy Director of Utilities – Water presented modifications to the
Whale Rock Standby rotation.
Page 6 of 141
Minutes Whale Rock Commission Meeting – May 4, 2023
Public Comments:
None
--End of Public Comment--
ACTION: No action taken.
BUSINESS ITEMS
5. WHALE ROCK DAM KEEPER’S RESIDENCE ADMINISTRATION GUIDELINES
AND LEASE AGREEMENT AMENDMENTS
Receive presentation regarding proposed modifications to the Whale Rock
Residence Lease Agreement
Public Comments:
None
--End of Public Comment--
ACTION: MOTION BY VICE CHAIR MCDONALD, SECOND BY COMMISSIONER
JACKSON, 4-0-1, (Chair Stewart absent) to:
A. Approve Modifications to the Whale Rock Dam Keeper’s Residence Guidelines;
and
B. Authorize the City of San Luis Obispo City Manager or their designee to approve
any and all lease amendments, in accordance with the Whale Rock Dam
Keeper’s Residence Guidelines.
6. FY 2022-23 FINANCIAL STATEMENTS
Tavy Garcia, Senior Accountant, provided a presentation on the Fiscal Year 2022-23
Financial Statements.
Public Comments:
None
--End of Public Comment--
ACTION: MOTION BY COMMISSIONER WORTH, SECOND BY COMMISSIONER
MARTINEZ 4-0-1, (Chair Stewart absent) to accept the fiscal year 2023-24 Financial
Statements as presented.
7. 2024-25 WHALE ROCK RESERVOIR BUDGET
Shane Whittington, Business Manager, presented the 2024-25 Whale Rock Reservoir
budget, including capital improvement projects (CIP) and Commission member
contributions and consider budget adoption.
Page 7 of 141
Minutes Whale Rock Commission Meeting – May 4, 2023
Public Comments:
None
--End of Public Comment--
ACTION: MOTION BY COMMISSIONER VICE CHAIR MCDONALD, SECOND BY
COMMISSION JACKSON, 4-0-1, (Chair Stewart absent) to adopt the 2024-25 Whale
Rock Reservoir Budget.
Update table 3 – to show operating reserves more clearly
8. ADVERTISEMENT AND AWARDING OF ROADWAY PAVEMENT AND DAM
CREST RESTORATION PROJECT
Noah Evans, Whale Rock Supervisory provided a presentation on the Roadway
Paving Project
Public Comments:
None
--End of Public Comment--
ACTION: MOTION BY COMMISSIONER MARTINEZ, SECOND BY
COMMISSIONER JACKSON, 4-0-1, (Chair Stewart absent) to:
1. Authorize staff to advertise for bids for the Roadway Paving Project and Dam Crest
Restoration project.
2. Authorize the City of San Luis Obispo City Manager to award contracts to lowest
responsible bids that are within the remaining project budget of $520,000 or can
be supplemented through the use of Completed Projects funds.
9. ADVERTISEMENT AND AWARDING OF A REQUEST FOR PORPOSAL (RFP)
FOR ADVANCED INSTRUMENTATION OF WHALE ROCK DAM
Noah Evans, Whale Rock Supervisor provided a presentation on Advanced
Instrumentation at Whale Rock Dam.
Public Comments:
Chad Worth
--End of Public Comment--
ACTION: MOTION BY COMMISSIONER MARTINEZ, SECOND BY VICE CHAIR
MCDONALD, 4-0-1, (Chair Stewart absent) to:
1. Authorize staff to advertise an RFP for the design and installation of Advanced
Instrumentation as Whale Rock Dam; and
Page 8 of 141
Minutes Whale Rock Commission Meeting – May 4, 2023
2. Authorize the City of San Luis Obispo City Manager to award a contract for the
selected RFP within the available project budget of $250,000
10. ADVERTISEMENT AND AWARDING FOR RFQS FOR A CONDITION STUDY AND
DESIGN FOR PUMP STATION IMPROVEMENTS
Noah Evans, Whale Rock Supervisor, provided presentation on Pump Station Condition Study
and Optional Design of Pump Station Improvements for Whale Rock’s two pump stations.
ACTION: MOTION BY COMMISSIONER JACKSON, SECOND BY COMMISSIONER
MARTINEZ, 4-0-1, (Chair Stewart absent) to:
1. Authorize staff to advertise an RFQ for a Condition Study and Design of upgrades
to the Whale Rock Pump Stations; and
2. Authorize the City of San Luis Obispo City Manager to award a contract for the
selected RFQ if within the available project budget of $500,000
COMMISSION REPORTS & COMMUNICATION
None
ADJOURNMENT
Vice Chair McDonald adjourned the meeting at 3:17p.m.
Page 9 of 141
Page 10 of 141
City of San Luis Obispo, Title, Subtitle
Whale Rock Commission Report
Whale Rock Commission Meeting – May 8, 2025
Agenda Item 2 – Election of Whale Rock Commission Officers
FROM: Aaron Floyd, Utilities Director
PREPARED BY: Noah Evans, Whale Rock Reservoir Supervisor
SUBJECT: Election of Whale Rock Commission Officers
RECOMMENDATION
Appoint Whitney McDonald as Commission Chair, Luis Martinez as Commission Vice
Chair, and Emily Jackson as Commission Secretary.
DISCUSSION
Historically, the chair position rotates among the commissioners. At the pleasure of
the commissioners, the next rotation would be Chair; Whitney McDonald, Chair; Luis
Martinez, Vice Chair; Emily Jackson, Commission Secretary. After the election of
officers, the new Chair presides over the meeting. The newly elected Chair, Vice
Chair, and Secretary will maintain their positions on the commission for a single-year
term, until new appointments are made during the 2026 Whale Rock Commission
meeting.
Future Commission Officer Rotation Schedule
Year Chair Vice Chair Secretary
2024-25
(Current
Year)
City of SLO Mayor City of SLO City
Manager
CMC
Representative
2025-26
(Upcoming
Year)
City of SLO City
Manager
CMC Representative City of SLO
Finance Director
2026-27 CMC Representative City of SLO Finance
Director
Cal Poly
Representative
2027-28 City of SLO Finance
Director
Cal Poly
Representative
City of SLO
Mayor
2028-29 Cal Poly
Representative
City of SLO Mayor City of SLO City
Manager
2029-30 City of SLO Mayor City of SLO City
Manager
CMC
Representative
ENVIRONMENTAL REVIEW
The California Environmental Quality Act does not apply to the recommended action,
because the action does not constitute a “Project” under CEQA Guidelines Sec
Page 11 of 141
City of San Luis Obispo, Title, Subtitle
Whale Rock Commission Report
Whale Rock Commission Meeting – May 8, 2025
Agenda Item 2 – Election of Whale Rock Commission Officers
15278.
FISCAL IMPACT
This action results in no fiscal impact to the Whale Rock Commission.
ALTERNATIVES
The Whale Rock Commission members may elect to modify the rotation
schedule for commission positions. This alternative is not recommended as the
proposed rotation is consistent with the rotation previously approved by the
commission at the 2023 Whale Rock Commission Meeting.
ATTACHMENTS
No attachments
Page 12 of 141
City of San Luis Obispo, Title, Subtitle
Whale Rock Commission Report
Whale Rock Commission Meeting – May 8, 2025
Agenda Item 3 – 2024-25 Accomplishments
FROM: Aaron Floyd, Utilities Director
PREPARED BY: Noah Evans, Whale Rock Supervisor
SUBJECT: 2024-25 Accomplishments
RECOMMENDATIONS
No action is requested of the commission for this update/presentation.
DISCUSSION
Whale Rock staff are responsible for the maintenance, repair, and operation of all
Whale Rock facilities and infrastructure, including the dam, spillway, intake structure,
pump stations, pipeline, public access areas, and associated infrastructure.
Significant accomplishments for 2024-25 include:
1. Staff received a
Spillway Underdrain
Repair Project
completion letter from
the Division of Safety
of Dams.
2. Staff recoated seven
Whale Rock pipeline
crossings.
3. Staff replaced two
check valves at
Pump Station B.
4. Staff worked with
ACUREN to perform
a cathodic protection study.
5. Staff developed and implemented the Whale Rock Volunteer Day program
6. Staff worked with HDR Engineering to study alternative pipeline replacement
strategies.
7. Staff repaired hydraulic piezometers that monitor dam safety and
performance.
RECOATED PIPELINE CROSSING
Page 13 of 141
City of San Luis Obispo, Title, Subtitle
Whale Rock Commission Report
Whale Rock Commission Meeting – May 8, 2025
Agenda Item 3 – 2024-25 Accomplishments
A detailed presentation of the 2024-25 Whale Rock accomplishments will be
provided during the commission meeting.
Page 14 of 141
City of San Luis Obispo, Title, Subtitle
Whale Rock Commission Report
Whale Rock Commission Meeting – May 8, 2025
Agenda Item 4 – Cathodic Protection Study, Whale Rock Pipeline
FROM: Aaron Floyd, Utilities Director
PREPARED BY: Noah Evans, Whale Rock Supervisor
SUBJECT: Cathodic Protection Survey of the Whale Rock Pipeline
RECOMMENDATIONS
No action is requested of the Commission for this update/presentation.
DISCUSSION
Cathodic protection prevents corrosion in metal structures, such as pipelines and
tanks, by applying a low electrical current. This method has been utilized since the
1930s. We use sacrificial cathodic protection for the Whale Rock pipeline , where
magnesium sulfide acts as the anode, corroding in place of the pipeline to protect it.
In January, our team collaborated with a specialized consultant to conduct a
comprehensive survey of Whale Rock's cathodic protection system (CPS). The
survey's objective was to assess the effectiveness of the CPS by measuring pipeline-
to-soil electrical flows against established industry standards at various points along
the pipeline. Key factors influencing the performance of the CPS, including electrical
isolation, interference, and continuity, were evaluated.
SACRIFICIAL ANODE CATHODIC PROTECTION SYSTEM
Page 15 of 141
City of San Luis Obispo, Title, Subtitle
Whale Rock Commission Report
Whale Rock Commission Meeting – May 8, 2025
Agenda Item 4 – Cathodic Protection Study, Whale Rock Pipeline
The consultant's report provides the following recommendations aimed at enhancing
the functionality of the CPS:
Recommendations:
1. Replacement of Anodes: Seventeen anodes require replacement. Anodes are
sacrificial components that protect the pipeline from corrosion by corroding
themselves. Anodes are wired to the pipeline and buried nearby. The
replacement process will involve excavation, installation of new anodes, and
backfilling of the excavated areas.
2. Installation of Electrical Isolators: To improve performance and eliminate
any risk of interference with the City of San Luis Obispo Water Treatment
Plant's metal pipes, electrical isolators will be installed between the Whale
Rock pipeline and the Water Treatment Plant.
3. Re-establishment of Anode and Test Station Connections: Connections
between the anodes and test stations will be re -established at eleven specific
locations. This will enable assessing anode performance at these sites, some
of which may require new anode installations.
4. Installation of Additional CPS Test Stations: Six additional CPS test
stations will be installed along the pipeline. Currently, there are no CPS test
stations between Pump Station B and the SLO Water Treatment Plant, which
spans approximately four miles.
Staff plans to re-establish the anode-to-test station connections (Report
Recommendation #3) over the coming months and to install the six additional CPS
test stations (Report Recommendation #4) during the summer. Additionally, staff will
develop a project for the Commission's future consideration to address
Recommendations 1 and 2.
ATTACHMENTS:
A - Cathodic Protection Survey Whale Rock Pipeline
Page 16 of 141
ACUUS-J212126-RSV-0.0 Page | ii 2025-03-05
Rev. Date Issued For Summary of Changes Originator Reviewer Approver
0 2025-03-05 Review First Issue
Jason Riggins
Senior CP Technician
US CP Division
Lisseth Ocando
Corrosion Engineer
US CP Division
Matthew Buchynski
Engineering Manager US
CP Division
2025 Whale Rock 30” Waterline
Cathodic Protection Survey
Report – Cathodic Protection Services
Issued To: City of San Luis Obispo
Prepared By: Acuren Inspection Inc.
Issue Date: 2025-03-05
Document ID: ACUUS-J212126-RSV-0.0
Page 17 of 141
City of San Luis Obispo I Cathodic Protection Report
2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 Page | iii 2025-03-05
Table of Contents
PURPOSE ....................................................................................................................... 1
CRITERIA ........................................................................................................................ 1
RECOMMENDATIONS .................................................................................................... 2
SYSTEM DESCRIPTION ................................................................................................... 3
4.1 CURRENT SOURCES ....................................................................................................... 3
4.2 TEST STATIONS .............................................................................................................. 5
RESULTS ......................................................................................................................... 6
5.1 STATUS OF CATHODIC PROTECTION .............................................................................. 6
5.2 SYSTEM REPAIRS ........................................................................................................... 6
5.3 ELECTRICAL ISOLATION ................................................................................................. 6
5.4 ELECTRICAL CONTINUITY AND INADEQUATE CATHODIC PROTECTION ......................... 6
5.5 SUMMARY ..................................................................................................................... 7
List of Tables
Table 1: Rectifier Output .............................................................................................................. 3
Table 2: Galvanic Anode Output .................................................................................................. 4
Table 3: Repairs Performed .......................................................................................................... 6
Table 4: Project Details ................................................................................................................. 7
List of Figures
Figure 1: Test Station Location ..................................................................................................... 5
Appendices
Appendix 1: Cathodic Protection Summary of Deficiencies
Appendix 2: Rectifier and Groundbed Data
Appendix 3: Structure-to-Electrolyte Potential Data
Appendix 4: Rectifier Surveillance Form
Appendix 5: List of Drawings
Appendix 6: Cathodic Protection Photo Log
Page 18 of 141
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2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 Page | 1 2025-03-05
ATTENTION: Noah Evans
RE: 2025 CATHODIC PROTECTION SURVEY REPORT
CITY OF SAN LUIS OBISPO – WHALE ROCK 30” WATERLINE
Authorization to proceed with the 2025 cathodic protection (CP) survey for the Whale Rock 30”
Pipeline was received electronically from Noah Evans. Acuren Inspection Inc. (Acuren) personnel
conducted the fieldwork between January 21, 2025 and January 23, 2025 to assess the status of
the CP system.
PURPOSE
The purpose of the survey was to evaluate the effectiveness of the CP system(s) by measuring
structure-to-electrolyte potentials against established industry criteria at all points of access as
per CFR Title 49, Part 195 Transportation of Hazardous Liquids by Pipeline. Additionally, critical
elements which influence the performance of a CP system, such as electrical isolation, electrical
interference, and continuity were evaluated. Any encountered deficiencies have been recorded
in this report. Minor repairs were completed where required and any remedial work identified
to ensure optimal performance of the CP system(s).
CRITERIA
To evaluate the effectiveness of CP systems, structure-to-electrolyte potential measurements are
recorded from all design structures and assessed against industry recognized criteria. Accepted
standards for the control of external and internal corrosion include, but are not limited to:
NACE SP0169-2024: Control of External Corrosion on Underground or Submerged Metallic
Piping Systems
The accepted criteria for corrosion control of buried or submerged steel structures in the above
standard(s) is generally defined as one of the following:
A minimum of 100 mV of cathodic polarization.
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City of San Luis Obispo I Cathodic Protection Report
2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 Page | 2 2025-03-05
A polarized structure-to-electrolyte potential of -850 mV or more negative measured with
respect to a copper/copper sulphate reference electrode.
Use of the 100-mV criterion requires the measurement of either the formation or decay of
polarization. Measuring the formation of polarization requires an accurate static potential
reading for comparison at each test location. Static potentials can only be collected when CP
system(s) have been turned ‘OFF’ for a sufficient period to allow for complete depolarization.
Measuring the decay of polarization requires the establishment of polarized potentials with all
CP systems electrically continuous with an asset turned ‘ON’. Polarization decay can then be
measured by turning off all applicable CP current sources.
In some circumstances, environmental factors may affect cathodic polarization behavior,
requiring specific adjustments to the applicable criteria for adequate CP. Where non-ferrous
metals are present, adjustments to the criteria are necessary to preserve the external integrity
of the buried metal structure. Extensions of the criteria for these specific situations are further
described in the applicable standard(s).
RECOMMENDATIONS
The following are recommended in order to achieve optimum levels of CP for the Whale Rock
pipeline:
• Ensure that the remedial work outlined on the attached “Summary of Deficiencies” is
completed and notify Acuren as soon as practical if a re-evaluation of the problem area(s)
is desired.
• Continue to operate the impressed current CP system(s) at their respective target current
outputs. Ensure the rectifier readings are recorded on a bi-monthly basis.
• Ensure that the galvanic anode system(s) are monitored on a periodic basis and the data
collected is stored properly for reference.
• Ensure adequate access is available to all locations during the annual CP survey.
• Consider utilizing Acuren’s pipeline integrity services (Indirect Inspection, ECDA) for any
length of pipeline where coating condition, burial depth, or CP potentials are of concern.
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2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 Page | 3 2025-03-05
• Notify Acuren of any changes, additions, or modifications to the facility operation which
may impact the operation of the CP system(s) or the status of CP on any protected
structures.
• Authorize Acuren to complete the annual CP survey of the facilities in 2026.
SYSTEM DESCRIPTION
The Whale Rock - Pump Station facilities assets (inlet/outlet headers) are protected by impressed
current cathodic protection (ICCP) systems. Specific details concerning the ICCP system design
were not available at the time of the survey. The 30” Whale Rock waterline is protected by a
series of galvanic anode placements.
4.1 CURRENT SOURCES
The status and output of the rectifier(s) in the Whale Rock – Pump Station facilities is listed in
‘Table 1’. It is recommended that the rectifier(s) operate within their target current output(s)
to ensure optimum performance of the CP system(s). Specifications and operational data for
each rectifier can be found in “Appendix 2”.
TABLE 1: RECTIFIER OUTPUT
Rectifier Description Location Target Output
(A)
Actual Output
(A) Notes
Alpha Pump Station
A 0.4-0.6 0.5 Protects Inlet & Outlet
Headers
Bravo Pump Station
B 0.6-0.8 0.7 Protects Inlet & Outlet
Headers
The location and status of the galvanic anodes along the 30” Whale Rock pipeline is listed in
‘Table 2’. Of the 20x anode test stations detailed only 2x locations have active anode
connections with potentials showing an influence of cathodic protection. Anode test station
deficiencies are detailed in the deficiency summary found in “Appendix 1”.
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City of San Luis Obispo I Cathodic Protection Report
2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 Page | 4 2025-03-05
TABLE 2: GALVANIC ANODE OUTPUT
Galvanic Anode Description Location Anode Output
(mA) Notes
Magnesium 10+00 0.0 Anode disconnected
Magnesium 71+30 0.0 Anode depleted
Magnesium 96+30 0.0 Anode depleted
Magnesium 96+30 0.0 Anode disconnected (Rear)
Magnesium 130+00 NR Anode present and
functional
Magnesium 157+00 0.0 Anode disconnected
Magnesium 165+00 0.0 Anode depleted
Magnesium 180+25 0.0 Anode(s) disconnected
Magnesium 207+00 0.0 Anode(s) disconnected
Magnesium 227+00 0.0 Anode depleted
Magnesium 295+05 0.0 Anode disconnected
Magnesium 300+00 NR Anode present and
functional
Magnesium 310+90 0.0 Anode disconnected
Magnesium 313+90 0.0 Anode(s) disconnected
Magnesium 397+25 0.0 Anode(s) disconnected
Magnesium 515+00 0.0 Anode disconnected
Magnesium 559+30 0.0 Anode depleted
Magnesium 579+00 0.0 Anode disconnected
Magnesium 602+50 0.0 Anode disconnected
Magnesium 602+50 0.0 Anode disconnected (Rear)
Page 22 of 141
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2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 Page | 5 2025-03-05
4.2 TEST STATIONS
Test stations are essential pieces of monitoring equipment for evaluation of the performance
of a CP system. Test stations can provide additional CP data at locations where no other above
ground structures are present for measurement. It is recommended that test stations remain
in good working order to facilitate future data collection during annual surveys. Test stations
deficiencies should be addressed according to the priority rating in “Appendix 1”. Figure 1
shows the actual view of the location of these test stations.
FIGURE 1: TEST STATION LOCATION – ACTUAL VIEW
Test station placement along the 30” Whale Rock waterline begin at station# 10+00 and end
at station# 602+50. There are no additional test station locations between Pump Station “B”
and the termination of the waterline at the regional treatment plant, approximately 4.5 miles.
Page 23 of 141
City of San Luis Obispo I Cathodic Protection Report
2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 Page | 6 2025-03-05
RESULTS
5.1 STATUS OF CATHODIC PROTECTION
The impressed current cathodic protection systems for Pump Station A & B showed moderate
levels of CP, assets meet 100mV criteria.
The galvanic anode cathodic protection systems for the 30” Whale Rock waterline showed
inadequate levels of CP; CP levels are expected to improve once the deficiencies noted in 4.1
are addressed.
5.2 SYSTEM REPAIRS
Minor repairs to the CP system were completed during the 2025 survey where possible.
Repairs completed are summarized in ‘Table 3’.
TABLE 3: REPAIRS PERFORMED
Asset
Repaired Location Deficiency Description Repair Performed
TR-Alpha Pump Station A Rectifier (Alpha) has a broken
negative structure cable. Established structure negative
5.3 ELECTRICAL ISOLATION
Electrical isolation devices are placed strategically along the 30” Whale Rock waterline to
prevent current drains to unintended structures, that could detrimentally affect the operation
of the CP system(s). Electrical isolation devices should be repaired or installed according to the
isolation deficiencies in “Appendix 1”. All procured isolation devices should be rated for oil
and gas environments, the appropriate services temperature and pressure rating, and their
specific application.
5.4 SUMMARY
At the time of the survey, the majority of the below ground design structures were not
receiving adequate CP as defined by NACE SP0169-2024 to mitigate external corrosion.
“Appendix 1” outlines the system repairs, modifications, and upgrades recommended at this
time.
Page 24 of 141
City of San Luis Obispo I Cathodic Protection Report
2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 Page | 7 2025-03-05
Once the recommended repairs are completed, facilities requiring CP should be adequately
protected. ‘Table 6’ outlines the dates and personnel responsible for this project.
TABLE 4: PROJECT DETAILS
Project Dates:
Field: January 21, 2025 to January 23, 2025
Office: February 15, 2021 to March 5, 2025
Personnel :
Field: - Jason Riggins, Senior CP Technician
Office:
- Jason Riggins, Senior CP Technician
- Lisseth Ocando, Corrosion Engineer
- Matthew Buchynski, Engineering Manager
Acuren appreciates the opportunity to have completed this project and looks forward to working
with you again in the future. Should there be any questions, comments, or concerns regarding
the contents of this report, please contact the undersigned.
Respectfully,
ACUREN INSPECTION INC.
Matthew Buchynski, P.Eng., NACE CP3 Technologist
Engineering Manager – US CP
Phone: (587) 217-0466
Email: matthew.buchynski@acuren.com
Page 25 of 141
City of San Luis Obispo I Cathodic Protection Report
2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 2025-03-05
APPENDIX 1: CATHODIC PROTECTION SUMMARY OF DEFICIENCIES
Page 26 of 141
CITY OF SAN LUIS OBISPO Priority:
WHALE ROCK - CATHODIC PROTECTION SURVEY 1 - Deficiency causes asset to not meet criteria. Asset out of compliance.
SUMMARY OF DEFICIENCIES 2 - Deficiency is not causing negative effects to asset at present but may in future.
2025 CP SURVEY - 30" WATERLINE 3 - Deficiency impacts the completion of the intended scope of work.
Deficiency ID Test Point ID Deficiency Type Priority Asset ID Description Recommended Action Cost Estimate Action
Assigned To
Additional
Reference Deficiency Status Target
Completion Date
Actual
Completion Date Comments
SOL-0001
Electrical
Insulation 1
Conveyance conduit is shorted to piping system
of the water treatment plant. This issue is a
concern and is reduce the life of the CP systems
and lowering CP protection levels on the water
system.
Recommended to install permanent isolators
and remeasure to ensure total isolation and
improved mechanical connection.
City of
San Luis Obispo
Water Treatment
Facility Incomplete 2025/12/30 2024/10/14
SOL-0002 System
Inadequate
Monitoring 2
Water Piping
System
Missing multiple periods of rectifier operational
data. Synchronous interruption require to gather
reliable IR free potentials required.
Install Remote Monitoring Units at each of the
three operational rectifiers or establish a bi-
monthly rectifier inspection/reporting program. SOL/Acuren Monitor 2025/12/30 Acuren to provide proposal
SOL-0003 System
Inadequate
Reference
Information 2 Facility
System drawings are missing updates and MOC
information.
Redline and update drawings after completion of
deficiency remediation, circuit reconfiguration,
and annual survey. Draft updates and install
printed copies in rectifiers/JBs. SOL/Acuren Incomplete 2025/03/30 Acuren to provide proposal
SOL-0004 System
Rectifier/Groundb
ed 1 TR‐Alpha
Rectifier (Alpha) has a broken negative structure
cable. Rectifier is functional, but not connected
to inlet/ outlet headers.
Establish structure negative, energize ICCP
system and allow to polarize. Update system
documentation to reflect system changes. Acuren Pump Station A Complete 2025/01/22 2025/01/23 Completed as part of project
SOL-0005 System
Inadequate
Cathodic
Protection 1 TR‐Bravo
Test point not meeting 100mV / 850mV
criterion.
Adjust system output. Update system
documentation to reflect system changes. Acuren Pump Station B Complete 2025/01/22 2025/01/23 Completed as part of project
SOL-0006 TP 10+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion.
Re-establish galvanic anode connection and
allow to polarize.Acuren Monitor 12/30/2025
SOL-0007 TP 48+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0008 TP 63+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0009 TP 65+85
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0010 TP 71+30
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0011 TP 96+30
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion.
Re-establish galvanic anode connection and
allow to polarize.Acuren Monitor 12/30/2025
SOL-0012 TP 139+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0013 TP 143+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0014 TP 157+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion.
Re-establish galvanic anode connection and
allow to polarize.Acuren Monitor 12/30/2025
SOL-0015 TP 160+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0016 TP 165+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0017 TP 176+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
Page 27 of 141
CITY OF SAN LUIS OBISPO Priority:
WHALE ROCK - CATHODIC PROTECTION SURVEY 1 - Deficiency causes asset to not meet criteria. Asset out of compliance.
SUMMARY OF DEFICIENCIES 2 - Deficiency is not causing negative effects to asset at present but may in future.
2025 CP SURVEY - 30" WATERLINE 3 - Deficiency impacts the completion of the intended scope of work.
Deficiency ID Test Point ID Deficiency Type Priority Asset ID Description Recommended Action Cost Estimate Action
Assigned To
Additional
Reference Deficiency Status Target
Completion Date
Actual
Completion Date Comments
SOL-0018 TP 180+25
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion.
Re-establish galvanic anode connection and
allow to polarize.Acuren Monitor 12/30/2025
SOL-0019 TP 207+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion.
Re-establish galvanic anode connection and
allow to polarize.Acuren Monitor 12/30/2025
SOL-0020 TP 217+39.5
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0021 TP 227+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0022 TP 257+10
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0023 TP 295+05
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion.
Re-establish galvanic anode connection and
allow to polarize.Acuren Monitor 12/30/2025
SOL-0024 TP 310+90
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion.
Re-establish galvanic anode connection and
allow to polarize.Acuren Monitor 12/30/2025
SOL-0025 TP 313+90
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion.
Re-establish galvanic anode connection and
allow to polarize.Acuren Monitor 12/30/2025
SOL-0026 TP 358+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0027 TP 397+25
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion.
Re-establish galvanic anode connection and
allow to polarize.Acuren Monitor 12/30/2025
SOL-0028 TP 430+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0029 TP 461+47
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0030 TP 515+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion.
Re-establish galvanic anode connection and
allow to polarize.Acuren Monitor 12/30/2025
SOL-0031 TP 559+30
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0032 TP 579+00
Inadequate
Cathodic
Protection 1
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing galvanic anode at this location Acuren Monitor 12/30/2025
SOL-0033 TP 602+50
Inadequate
Cathodic
Protection 2
Water Piping
System
Test point not meeting 100mV / 850mV
criterion.
Re-establish galvanic anode connection and
allow to polarize.Acuren Monitor 12/30/2025
SOL-0034 PLEX-03
Inadequate
Cathodic
Protection 2
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing anode test station.Acuren Pipeline Exposure Monitor 12/30/2025
SOL-0035 PLEX-04
Inadequate
Cathodic
Protection 2
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing anode test station.Acuren Pipeline Exposure Monitor 12/30/2025
SOL-0036 PLEX-05
Inadequate
Cathodic
Protection 2
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing anode test station.Acuren Pipeline Exposure Monitor 12/30/2025
SOL-0037 PLEX-06
Inadequate
Cathodic
Protection 2
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing anode test station.Acuren Pipeline Exposure Monitor 12/30/2025
Page 28 of 141
CITY OF SAN LUIS OBISPO Priority:
WHALE ROCK - CATHODIC PROTECTION SURVEY 1 - Deficiency causes asset to not meet criteria. Asset out of compliance.
SUMMARY OF DEFICIENCIES 2 - Deficiency is not causing negative effects to asset at present but may in future.
2025 CP SURVEY - 30" WATERLINE 3 - Deficiency impacts the completion of the intended scope of work.
Deficiency ID Test Point ID Deficiency Type Priority Asset ID Description Recommended Action Cost Estimate Action
Assigned To
Additional
Reference Deficiency Status Target
Completion Date
Actual
Completion Date Comments
SOL-0038 PLEX-07
Inadequate
Cathodic
Protection 2
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing anode test station.Acuren Pipeline Exposure Monitor 12/30/2025
SOL-0039 PLEX-08
Inadequate
Cathodic
Protection 2
Water Piping
System
Test point not meeting 100mV / 850mV
criterion. Consider installing anode test station.Acuren Pipeline Exposure Monitor 12/30/2025
SOL-0040 Monitoring 3
Water Piping
System Need 2025 "off" potential Interrupted 2026 Annual Survey Acuren Incomplete 1/30/2026 Acuren to provide proposal
Page 29 of 141
City of San Luis Obispo I Cathodic Protection Report
2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 2025-03-05
APPENDIX 2: RECTIFIER AND GROUNDBED DATA
Page 30 of 141
CITY OF SAN LUIS OBISPO
WHALE ROCK - CATHODIC PROTECTION SURVEY
RECTIFIER INSPECTION DATA
2025 CP SURVEY - 30" WATERLINE
Pr
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(
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)
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c
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f
i
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r
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x
t
e
r
n
a
l
D
i
s
c
o
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n
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c
t
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W
a
r
n
i
n
g
S
i
g
n
s
In
s
p
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SLO WHALE ROCK ALPHA PSA - MCC 932321 ES Universal Rectifiers 2025-01-22 AF Cl F2 7.63 0 NR No current output Trace Neg. attachment 1mv/ 0.2A 20 5 AC 0 No No No No Acuren J. Riggins
SLO WHALE ROCK ALPHA PSA - MCC 932321 ES Universal Rectifiers 2025-01-22 AA C1 F6 16.39 0 NR No Neg. Attachment Re-establish Neg. Attachment 1mv/ 0.2A 20 5 AC 0 No No No No Acuren J. Riggins
SLO WHALE ROCK ALPHA PSA - MCC 932321 ES Universal Rectifiers 2025-01-22 AL C1 F6 4.29 0.50 8.58 Neg. Established Allow to polarize - Re-survey 1mv/ 0.2A 20 5 AC 0 No No No No Acuren J. Riggins
SLO WHALE ROCK BRAVO PSB - MCC 932322 ES Universal Rectifiers 2025-01-22 AF C2 F1 10.42 0.2 52.10 Header potential low Adjust output 1mv/ 0.2A 20 5 AC 0 No No No No Acuren J. Riggins
SLO WHALE ROCK BRAVO PSB - MCC 932322 ES Universal Rectifiers 2025-01-22 AA C2 F6 16.39 0.4 40.98 Header potential low Adjust output 1mv/ 0.2A 20 5 AC 0 No No No No Acuren J. Riggins
SLO WHALE ROCK BRAVO PSB - MCC 932322 ES Universal Rectifiers 2025-01-22 AL C2 F6 17.36 0.70 24.80 Header potential low As-Left 1mv/ 0.2A 20 5 AC 0 No No No No Acuren J. Riggins
Page 31 of 141
City of San Luis Obispo I Cathodic Protection Report
2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 2025-03-05
APPENDIX 3: STRUCTURE-TO-ELECTROLYTE POTENTIAL DATA
Page 32 of 141
CITY OF SAN LUIS OBISPO
WHALE ROCK - CATHODIC PROTECTION SURVEY
CP TEST POINT DATA
2025 CP SURVEY - 30" WATERLINE
Pr
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Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Reservoir Station A Water 30 -O -346 Port. Ref.AF 1/21/2025 N/A J. Riggins
10+00 Lead #2 - Anode 1x - Red ---------1415 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
35.442646 Lead #0 - Empty ---------
-120.887133 Lead #0 - Empty ---------
Test Station Lead #1 - Pipe 1 1x - Bare CC -Reservoir Station A Water 30 -O -570 Port. Ref.No Anode at location 40+00 Insulating Coupling AF 1/21/2025 N/A J. Riggins
48+00 Lead #2 - Pipe 1 1x - Bare CC -Reservoir Station A Water 30 -O -570 Port. Ref.Confirm Isolation AF 1/21/2025 N/A J. Riggins
35.434807 Lead #3 - Pipe 1 1x - Bare CC -Reservoir Station A Water 30 -O -570 Port. Ref.AF 1/21/2025 N/A J. Riggins
-120.88579 Lead #4 - Pipe 1 1x - Bare CC -Reservoir Station A Water 30 -O -570 Port. Ref.AF 1/21/2025 N/A J. Riggins
Test Station Lead #1 - Pipe 1 1x - Black CC -Reservoir Station A Water 30 -O -475 Port. Ref.No Anode at location 63+00 Insulating Coupling AF 1/21/2025 N/A J. Riggins
63+00 Lead #2 - Pipe 1 1x - Black CC -Reservoir Station A Water 30 -O -475 Port. Ref.Confirm Isolation AF 1/21/2025 N/A J. Riggins
35.429397 Lead #0 - Empty ---------
-120.881814 Lead #0 - Empty ---------
Test Station Lead #1 - Pipe 1 1x - Black CC -Reservoir Station A Water 30 -O -430 Port. Ref.No Anode at location AF 1/21/2025 N/A J. Riggins
65+85 Lead #0 - Empty ---------AF 1/21/2025 N/A J. Riggins
35.428832 Lead #0 - Empty ---------
-120.881311 Lead #0 - Empty ---------
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Reservoir Station A Water 30 -O -330 Port. Ref.71+30 Insulating Coupling AF 1/21/2025 N/A J. Riggins
71+30 Lead #2 - Pipe 1 1x - Black CC -Reservoir Station A Water 30 -O -330 Port. Ref.AF 1/21/2025 N/A J. Riggins
35.427664 Lead #3 - Pipe 2 1x - White CC -Reservoir Station A Water 30 -O -449 Port. Ref.AF 1/21/2025 N/A J. Riggins
-120.880275 Lead #4 - Pipe 2 1x - White CC -Reservoir Station A Water 30 -O -449 Port. Ref.AF 1/21/2025 N/A J. Riggins
Lead #5 - Anode 1x - Black ---------449 Port. Ref.Anode Depleted AF 1/21/2025 N/A J. Riggins
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Reservoir Station A Water 30 -O -415 Port. Ref.Pump Station A AF 1/21/2025 N/A J. Riggins
96+30 Lead #2 - Anode 1 1x - Black ---------415 Port. Ref.Anode Depleted ICCP system installed/ Non-Functional AF 1/21/2025 N/A J. Riggins
35.421243 Lead #3 - Anode 2 1x - Black ---------415 Port. Ref.Anode Depleted Protects Inlet/ Outlet Header AF 1/21/2025 N/A J. Riggins
-120.876756 Lead #0 - Header 1 1x - Black CC -Station A Station A Water --O -250 Port. Ref.Establish structure negative AF 1/21/2025 N/A J. Riggins
Lead #0 - Header 2 1x - Black CC Station A Station A Water --O -246 Port. Ref.Headers not isolated from pipeline AF 1/21/2025 N/A J. Riggins
Lead #1 - Pipe 2 1x - Black CC Station A Station A Water --O -237 Port. Ref.AF 1/21/2025 N/A J. Riggins
Lead #2 - Anode 2 1x - Black ---------1200 Port. Ref.Anode not connected TP at Rear of station AF 1/21/2025 N/A J. Riggins
Anode Test Station Lead #1 - Pipe 1 1x - White CC -Station A Station B Water 30 -O -1279 Port. Ref.Active Anode location AF 1/21/2025 N/A J. Riggins
130+00 Lead #2 - Pipe 1 1x - White CC -Station A Station B Water 30 -O -1279 Port. Ref.AF 1/21/2025 N/A J. Riggins
35.416033 Lead #3 - Pipe 2 1x - White CC -Station A Station B Water 30 -O -713 Port. Ref.AF 1/21/2025 N/A J. Riggins
-120.874328 Lead #4 - Pipe 2 1x - White CC -Station A Station B Water 30 -O -713 Port. Ref.AF 1/21/2025 N/A J. Riggins
Lead #5 - Anode 1x - Red ---------1279 Port. Ref.Anode present AF 1/21/2025 N/A J. Riggins
Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -385 Port. Ref.AF 1/21/2025 N/A J. Riggins
139+00 Lead #0 - Empty ---------No Anode at location
35.415255 Lead #0 - Empty ---------
-120.874005 Lead #0 - Empty ---------
Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -439 Port. Ref.143+00 Insulating Coupling AF 1/21/2025 N/A J. Riggins
143+00 Lead #2 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -439 Port. Ref.Confirm Isolation AF 1/21/2025 N/A J. Riggins
35.411367 Lead #3 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -420 Port. Ref.AF 1/21/2025 N/A J. Riggins
-120.871147 Lead #4 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -420 Port. Ref.No Anode at location AF 1/21/2025 N/A J. Riggins
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -439 Port. Ref.157+00 Insulating Coupling AF 1/21/2025 N/A J. Riggins
157+00 Lead #2 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -439 Port. Ref.Confirm Isolation AF 1/21/2025 N/A J. Riggins
35.41093 Lead #3 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -417 Port. Ref.AF 1/21/2025 N/A J. Riggins
-120.870125 Lead #4 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -417 Port. Ref.AF 1/21/2025 N/A J. Riggins
Lead #5 - Anode 1x - Black ---------1417 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
Page 33 of 141
CITY OF SAN LUIS OBISPO
WHALE ROCK - CATHODIC PROTECTION SURVEY
CP TEST POINT DATA
2025 CP SURVEY - 30" WATERLINE
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Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -505 Port. Ref.AF 1/21/2025 N/A J. Riggins
160+00 Lead #0 - Empty ---------Port. Ref.No Anode at location AF 1/21/2025 N/A J. Riggins
35.410217 Lead #0 - Empty ---------Port. Ref.AF 1/21/2025 N/A J. Riggins
-120.86901 Lead #0 - Empty ---------
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -587 Port. Ref.AF 1/21/2025 N/A J. Riggins
165+00 Lead #2 - Anode 1 1x - Black ---------587 Port. Ref.Anode depleted AF 1/21/2025 N/A J. Riggins
35.408715 Lead #3 - Anode 2 1x - Black ---------587 Port. Ref.Anode depleted AF 1/21/2025 N/A J. Riggins
-120.867843 Lead #0 - Empty ---------
Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -578 Port. Ref.171+00 Insulating Coupling AF 1/21/2025 N/A J. Riggins
176+00 Lead #0 - Empty ---------No Anode at location Confirm Isolation
35.407844 Lead #0 - Empty ---------
-120.866588 Lead #0 - Empty ---------
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -525 Port. Ref.180+25 Insulating Coupling AF 1/21/2025 N/A J. Riggins
180+25 Lead #2 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -525 Port. Ref.Confirm Isolation AF 1/21/2025 N/A J. Riggins
35.406898 Lead #3 - Anode 1 1x - Black ---------1324 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
-120.865904 Lead #4 - Anode 2 1x - Black ---------1325 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -437 Port. Ref.207+00 Insulating Coupling AF 1/21/2025 N/A J. Riggins
207+00 Lead #2 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -437 Port. Ref.Confirm Isolation AF 1/21/2025 N/A J. Riggins
35.401691 Lead #3 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -426 Port. Ref.AF 1/21/2025 N/A J. Riggins
-120.859617 Lead #4 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -426 Port. Ref.AF 1/21/2025 N/A J. Riggins
Lead #5 - Anode 1x - Black ---------1315 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
Lead #6 - Anode 1x - Black ---------1297 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -413 Port. Ref.AF 1/21/2025 N/A J. Riggins
217+39.5 Lead #2 - Anode 1x - Black ---------413 Port. Ref.Anode present 217+39.5 Bond station AF 1/21/2025 N/A J. Riggins
35.399405 Lead #0 - Empty ---------16" Foreign Line Crossing - Valley
-120.857469 Lead #0 - Empty ---------
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -217 Port. Ref.227+00 Insulating Coupling AF 1/21/2025 N/A J. Riggins
227+00 Lead #2 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -217 Port. Ref.Confirm Isolation AF 1/21/2025 N/A J. Riggins
35.396956 Lead #3 - Anode 1x - Black ---------217 Port. Ref.Anode present AF 1/21/2025 N/A J. Riggins
-120.856558 Lead #0 - Empty ---------
Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -545 Port. Ref.AF 1/21/2025 N/A J. Riggins
257+10 Lead #0 - Empty ---------No Anode at location 247+73 - 266+52 Parrallel Gas Main
35.380229 Lead #0 - Empty ---------
-120.847629 Lead #0 - Empty ---------
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -497 Port. Ref.292+50 Insulating Coupling AF 1/21/2025 N/A J. Riggins
295+05 Lead #2 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -497 Port. Ref.295+05 Insulating Coupling AF 1/21/2025 N/A J. Riggins
35.378811 Lead #3 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -507 Port. Ref.Confirm Isolation AF 1/21/2025 N/A J. Riggins
-120.846187 Lead #4 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -507 Port. Ref.AF 1/21/2025 N/A J. Riggins
Lead #5 - Anode 1x - Black ---------1437 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -1182 Port. Ref.Active Anode location AF 1/21/2025 N/A J. Riggins
300+00 Lead #2 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -727 Port. Ref.302+50 Foreign Line Crossing - PG&E AF 1/21/2025 N/A J. Riggins
35.376827 Lead #3 - Anode 1x - Black ---------1182 Port. Ref.Anode present AF 1/21/2025 N/A J. Riggins
-120.844256 Lead #0 - Empty ---------
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -582 Port. Ref.AF 1/21/2025 N/A J. Riggins
310+90 Lead #2 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -1543 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
35.376827 Lead #3 - Anode 1x - Black ---------Port. Ref.AF 1/21/2025 N/A J. Riggins
-120.844256 Lead #0 - Empty ---------
Page 34 of 141
CITY OF SAN LUIS OBISPO
WHALE ROCK - CATHODIC PROTECTION SURVEY
CP TEST POINT DATA
2025 CP SURVEY - 30" WATERLINE
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Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -727 Port. Ref.312+00 Insulating Coupling AF 1/21/2025 N/A J. Riggins
313+90 Lead #2 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -727 Port. Ref.Confirm Isolation AF 1/21/2025 N/A J. Riggins
35.376173 Lead #3 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -505 Port. Ref.AF 1/21/2025 N/A J. Riggins
-120.843635 Lead #4 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -508 Port. Ref.AF 1/21/2025 N/A J. Riggins
Lead #5 - Anode 1x - Black ---------1451 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
Lead #6 - Anode 1x - Black ---------1468 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Reservoir Station A Water 30 -O -482 Port. Ref.AF 1/21/2025 N/A J. Riggins
358+00 Lead #2 - Pipe 2 1x - Black CC -Reservoir Station A Water 30 -O -319 Port. Ref.AF 1/21/2025 N/A J. Riggins
35.369856 Lead #3 - Anode 1 1x - Black ---------482 Port. Ref.Anode present AF 1/21/2025 N/A J. Riggins
-120.831119 Lead #4 - Anode 2 1x - Black ---------319 Port. Ref.Anode present AF 1/21/2025 N/A J. Riggins
Pipeline Exposure SAI #1 - Pipe 1 1x - Pipeline CC -Reservoir Station A Water 30 -O -472 Port. Ref.AF 1/21/2025 N/A J. Riggins
PLEX-01 SAI #2 - Pipe 1 1x - Pipeline CC -Reservoir Station A Water 30 -O -NR AF 1/21/2025 N/A J. Riggins
35.369856 Lead #0 - Empty ---------
-120.831119 Lead #0 - Empty ---------
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -195 Port. Ref.AF 1/21/2025 N/A J. Riggins
397+25 Lead #2 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -194 Port. Ref.397+25 Foreign Line Crossing - Unknown AF 1/21/2025 N/A J. Riggins
35.36237 Lead #3 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -207 Port. Ref.397+25 Bond Station - Unknown AF 1/21/2025 N/A J. Riggins
-120.808837 Lead #4 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -207 Port. Ref.418+60 Foreign Line Crossing - Valley AF 1/21/2025 N/A J. Riggins
Lead #5 - Anode 1 1x - Black ---------1291 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
Lead #6 - Anode 2 1x - Black ---------1399 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
Anode Test Station Lead #1 - Pipe 1 1x - White CC -Station A Station B Water 30 -O -200 Port. Ref.AF 1/21/2025 N/A J. Riggins
430+00 Lead #2 - Anode 1x - Red ---------200 Port. Ref.Anode not connected AF 1/21/2025 N/A J. Riggins
35.359801 Lead #0 - Empty ---------
-120.799179 Lead #0 - Empty ---------
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -200 Port. Ref.AF 1/22/2025 N/A J. Riggins
461+47 Lead #1 - Foreign 1 1x - Green ---------50 Port. Ref.Unknown 461+47 Foreign Line Crossing - Gas AF 1/22/2025 N/A J. Riggins
35.359801 Lead #2 - Anode 1x - Red ---------50 Port. Ref.Anode not connected 461+47 Bond Station AF 1/22/2025 N/A J. Riggins
-120.799179 Lead #0 - Empty ---------
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -346 Port. Ref.AF 1/22/2025 N/A J. Riggins
515+00 Lead #2 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -562 Port. Ref.AF 1/22/2025 N/A J. Riggins
35.359144 Lead #3 - Anode 1 1x - Black ---------1481 Port. Ref.Anode not connected AF 1/22/2025 N/A J. Riggins
-120.797544 Lead #4 - Anode 2 1x - Black ---------562 Port. Ref.Anode present AF 1/22/2025 N/A J. Riggins
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -547 Port. Ref.559+30 Insulating Coupling AF 1/22/2025 N/A J. Riggins
559+30 Lead #2 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -547 Port. Ref.Confirm Isolation AF 1/22/2025 N/A J. Riggins
35.348159 Lead #3 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -325 Port. Ref.560+80 Foreign Line Crossing - Water AF 1/22/2025 N/A J. Riggins
-120.769263 Lead #4 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -325 Port. Ref.AF 1/22/2025 N/A J. Riggins
Lead #5 - Anode 1x - Black ---------547 Port. Ref.Anode present AF 1/22/2025 N/A J. Riggins
Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -547 Port. Ref.579+00 Insulating Coupling AF 1/22/2025 N/A J. Riggins
579+00 Lead #2 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -582 Port. Ref.Confirm Isolation AF 1/22/2025 N/A J. Riggins
35.345316 Lead #3 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -331 Port. Ref.569+30 Foreign Line Crossing - Gas AF 1/22/2025 N/A J. Riggins
-120.764613 Lead #4 - Pipe 2 1x - Black CC -Station A Station B Water 30 -O -332 Port. Ref.AF 1/22/2025 N/A J. Riggins
Lead #5 - Anode 1x - Black ---------582 Port. Ref.Anode present AF 1/22/2025 N/A J. Riggins
Pipeline Exposure SAI #1 - Pipe 1 1x - Pipeline CC -Station A Station B Water 30 -O -324 Port. Ref.AF 1/22/2025 N/A J. Riggins
PLEX-02 SAI #2 - Pipe 1 1x - Pipeline ---------Port. Ref.AF 1/22/2025 N/A J. Riggins
35.343491 Lead #0 - Empty ---------
-120.758687 Lead #0 - Empty ---------
Page 35 of 141
CITY OF SAN LUIS OBISPO
WHALE ROCK - CATHODIC PROTECTION SURVEY
CP TEST POINT DATA
2025 CP SURVEY - 30" WATERLINE
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Anode Test Station Lead #1 - Pipe 1 1x - Black CC -Station A Station B Water 30 -O -615 Port. Ref.Pump station B AF 1/22/2025 N/A J. Riggins
602+50 Lead #2 - Anode 1 1x - Black ---------1615 Port. Ref.Anode not connected ICCP system installed/ Functional AF 1/22/2025 N/A J. Riggins
35.342727 Lead #3 - Anode 2 1x - Black ---------542 Port. Ref.Protects Inlet/ Outlet Header AF 1/22/2025 N/A J. Riggins
-120.756801 Lead #0 - Header 1 1x - Black CC -Station B Station B Water 30 -O -505 Port. Ref.Requires adjustment AF 1/22/2025 N/A J. Riggins
Lead #0 - Header 2 1x - Black CC -Station B Station B Water 30 -O -532 Port. Ref.Headers not isolated from pipeline AF 1/22/2025 N/A J. Riggins
Lead #1 - Pipe 2 1x - Black CC -Station B W. Plant Water 30 -O -1325 Port. Ref.Anode not connected 628+80 Foreign Line Crossing - Water AF 1/22/2025 N/A J. Riggins
Lead #2 - Anode 2 1x - Black
Pipeline Exposure SAI #1 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -NR Port. Ref.No presence of CP 625+46 Pipeline Exposure AF 1/22/2025 N/A J. Riggins
PLEX-03 SAI #2 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -NR Port. Ref.628+80 Foreign Line Crossing - Water AF 1/22/2025 N/A J. Riggins
35.340004 Lead #0 - Empty ---------
-120.750271 Lead #0 - Empty ---------
Pipeline Exposure SAI #1 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -NR Port. Ref.No presence of CP 633+82 Pipeline Exposure AF 1/22/2025 N/A J. Riggins
PLEX-04 SAI #2 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -NR Port. Ref.AF 1/22/2025 N/A J. Riggins
35.338695 Term #0 - Empty ---------
-120.738024 Term #0 - Empty ---------
Pipeline Exposure SAI #1 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -NR Port. Ref.No presence of CP AF 1/22/2025 N/A J. Riggins
PLEX-05 SAI #2 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -NR Port. Ref.AF 1/22/2025 N/A J. Riggins
35.333286 Term #0 - Empty ---------
-120.706171 Term #0 - Empty ---------
Pipeline Exposure SAI #1 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -NR Port. Ref.No presence of CP AF 1/22/2025 N/A J. Riggins
PLEX-06 SAI #2 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -NR Port. Ref.AF 1/22/2025 N/A J. Riggins
35.330842 Term #0 - Empty ---------
-120.701633 Term #0 - Empty ---------
Pipeline Exposure SAI #1 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -NR Port. Ref.No presence of CP AF 1/22/2025 N/A J. Riggins
PLEX-07 SAI #2 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -NR Port. Ref.AF 1/22/2025 N/A J. Riggins
35.325228 Term #0 - Empty ---------
-120.690598 Term #0 - Empty ---------
Pipeline Exposure SAI #1 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -NR Port. Ref.No presence of CP AF 1/22/2025 N/A J. Riggins
PLEX-08 SAI #2 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -NR Port. Ref.AF 1/22/2025 N/A J. Riggins
35.321939 Term #0 - Empty ---------
-120.684382 Term #0 - Empty ---------
Pipeline Exposure SAI #1 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -348 Port. Ref.No presence of CP AF 1/22/2025 N/A J. Riggins
PLEX-09 SAI #2 - Pipe 1 1x - Pipeline CC -Station B W. Plant Water 30 -O -342 Port. Ref.AF 1/22/2025 N/A J. Riggins
35.321768 Term #0 - Empty ---------
-120.684148 Term #0 - Empty ---------
Page 36 of 141
City of San Luis Obispo I Cathodic Protection Report
2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 2025-03-05
APPENDIX 4: RECTIFIER SURVEILLANCE FORM
Page 37 of 141
CLIENT
PROJECT
JOB ID
DESCRIPTION
RECTIFIER NAME:Latitude Longitude
RECTIFIER I.D.:35°25'16" N 120°52'36" W
RECTIFIER LOCATION:MODEL #
MANUFACTURED BY:SERIAL #
TYPE:MAX COARSE TAPS
MAX FINE TAPS
VOLTS AMPS PHASE RATED T (°F)
RECTIFIER INPUT AC:115 1.2 1 122
RECTIFIER OUTPUT DC:20 5
SHUNT SIZE:1 0.2
SHUNT FACTOR (A/mV):
2025-01-22 J. Riggins C1 F2 0.00 7.63 0 #DIV/0!No current output
2025-01-22 J. Riggins C1 F6 0.00 16.39 0 #DIV/0!No Neg. Attachment
2025-01-23 J. Riggins C1 F6 2.30 4.29 0.5 8.58 As-Left
SYSTEM TYPE ICCP
NUMBER OF ANODES Unknown
SHUNT TYPE None Anode #Current (A)Current (A)Current (A)Current (A)Current (A)Current (A)
1 NR
2 NR
3 NR
4 NR
5 NR
6 NR
7 NR
8 NR
9 NR
10 NR
Total:0.0 0.0 0.0 0.0 0.0 0.0
2025-01-22
Housing Excellent
Hasp Excellent
Gasket Seal Good
Panel Excellent
AC Breaker Good
Transformer Good
Oil Level Not Applicable
Oil Color Not Applicable
Oil Temperature Not Applicable
3
RECTIFIER DATA
Air Cooled
Advanced Services
Department
Tomball Office, Suite #100
14434 Medical Complex Dr
Tomball, TX 77377
United States
Phone: (936) 441-2288
City of San Luis Obispo
SLO WL - Cayucos - San Luis Obispo
Cathodic Protection Survey
RECTIFIER INSPECTION REPORT
932321
GPS
ES
ALPHA
932321
Pump Station A - MCC
PICTURES
OTHER CONDITIONS
Universal Rectifiers
No information on
groundbed, unknown
number of anodes, no
positive junction box
located.
ICCP protects
Inlet/Outlet headers.
Unknown if headers are
isolated from pipeline
segments.
REMARKS
Reading Date Bed # 1
6
GROUNDBED DATA
DATE
0.0002
DC AMPS CIRCUIT RESISTANCE
(Ohm)REMARKSTECHNICIANDC VOLTS
Reading Date
CONDITIONS
(IF APPLICABLE)
COARSE TAP FINE TAP SHUNT mV
Page 1
Page 38 of 141
CLIENT
PROJECT
JOB ID
DESCRIPTION
RECTIFIER NAME:Latitude Longitude
RECTIFIER I.D.:35°20'33" N 120°45'23" W
RECTIFIER LOCATION:MODEL #
MANUFACTURED BY:SERIAL #
TYPE:MAX COARSE TAPS
MAX FINE TAPS
VOLTS AMPS PHASE RATED T (°F)
RECTIFIER INPUT AC:115 1.2 1 122
RECTIFIER OUTPUT DC:20 5
SHUNT SIZE:1 0.2
SHUNT FACTOR (A/mV):
2025-01-22 J. Riggins C2 F1 1.10 10.42 0.2 52.10 As-Found
2025-01-22 J. Riggins C2 F6 1.80 16.39 0.4 40.98 Adjusted
2025-01-23 J. Riggins C3 F1 1.80 17.36 0.7 24.80 As-Left
SYSTEM TYPE ICCP
NUMBER OF ANODES Unknown
SHUNT TYPE None Anode #Current (A)Current (A)Current (A)Current (A)Current (A)Current (A)
1 NR
2 NR
3 NR
4 NR
5 NR
6 NR
7 NR
8 NR
9 NR
10 NR
Total:0.0 0.0 0.0 0.0 0.0 0.0
2025-01-22
Housing Excellent
Hasp Excellent
Gasket Seal Good
Panel Excellent
AC Breaker Good
Transformer Good
Oil Level Not Applicable
Oil Color Not Applicable
Oil Temperature Not Applicable
Advanced Services
Department
Tomball Office, Suite #100
14434 Medical Complex Dr
Tomball, TX 77377
United States
Phone: (936) 441-2288
City of San Luis Obispo
SLO WL - Cayucos - San Luis Obispo
Cathodic Protection Survey
0.0002
RECTIFIER INSPECTION REPORT
BRAVO GPS932322
Pump Station B - MCC ES
Universal Rectifiers 932322
Air Cooled 3
6
RECTIFIER DATA
DATE TECHNICIAN COARSE TAP FINE TAP SHUNT mV DC VOLTS DC AMPS CIRCUIT RESISTANCE
(Ohm)REMARKS
Reading Date
CONDITIONS
(IF APPLICABLE)
PICTURES
GROUNDBED DATA
Bed # 1 Reading Date
REMARKS
No information on
groundbed, unknown
number of anodes, no
positive junction box
located.
ICCP protects
Inlet/Outlet headers.
Unknown if headers are
isolated from pipeline
segments.
OTHER CONDITIONS
Page 2
Page 39 of 141
City of San Luis Obispo I Cathodic Protection Report
2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 2025-03-05
APPENDIX 5: LIST OF DRAWINGS
Drawing Number Drawing Description
SLO-CC-0001 Conduit As-Built Station 0 to 255
SLO-CC-0002 Conduit As-Built Station 255 to 525
SLO-CC-0003 Conduit As-Built Station 555 to 810
SLO-CC-0004 Conduit As-Built Station 810 to 903 and detail drawings
SLO-CC-0005 Pump Station As-Built - Upgrade
Page 40 of 141
City of San Luis Obispo I Cathodic Protection Report
2025 Whale Rock 30” Waterline CP Survey
ACUUS-J212126-RSV-0.0 2025-03-05
APPENDIX 6: CATHODIC PROTECTION PHOTO LOG
Page 41 of 141
PHOTO SUMMARY
City of San Luis Obispo
Whale Rock
Cathodic Protection Survey
2025-01-20
Page 42 of 141
2025 CP Survey – TP 10+00
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2025 CP Survey – TP 48+00
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2025 CP Survey – TP 63+00
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2025 CP Survey – TP 65+85
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2025 CP Survey – TP 71+30
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2025 CP Survey – TP 96+30
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2025 CP Survey – TP 130+00
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2025 CP Survey – TP 139+00
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2025 CP Survey – TP 143+00
Page 51 of 141
2025 CP Survey – TP 157+00
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2025 CP Survey – TP 160+00
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2025 CP Survey – TP 165+00
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2025 CP Survey – TP 171+00
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2025 CP Survey – TP 176+00
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2025 CP Survey – TP 185+25
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2025 CP Survey – TP 207+00
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2025 CP Survey – TP 217+39.5
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2025 CP Survey – TP 227+00
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2025 CP Survey – TP 257+10
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2025 CP Survey – TP 295+05
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2025 CP Survey – TP 310+90
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2025 CP Survey – TP 313+90
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2025 CP Survey – TP 358+00
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2025 CP Survey – TP 397+25
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2025 CP Survey – TP 430+00
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2025 CP Survey – TP 461+47
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2025 CP Survey – TP 515+00
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2025 CP Survey – TP 559+30
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2025 CP Survey – TP 579+00
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2025 CP Survey – Pump Station A
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2025 CP Survey – Pump Station A
Page 73 of 141
2025 CP Survey – Pump Station B
Page 74 of 141
City of San Luis Obispo, Title, Subtitle
Whale Rock Commission Report
Whale Rock Commission Meeting – May 8, 2025
Agenda Item 5 – Alternative Pipeline Replacement Study
FROM: Aaron Floyd, Utilities Director
PREPARED BY: Noah Evans, Whale Rock Supervisor
SUBJECT: Whale Rock Dam, Pipeline Replacement Study
RECOMMENDATIONS
No action is requested by the commission for this agenda item.
DISCUSSION
Background
As previously authorized during the 2023
Whale Rock Commission meeting, the
Pipeline Replacement Study was initiated to
explore various options for renewing the
Whale Rock pipeline, which has been in
service for over six decades. The Study
provides a roadmap for maintaining the
integrity of the Whale Rock water delivery
system by providing pipeline renewal and
replacement recommendations. The study is
nearly complete, and staff wish to update the
Commissioners on its contents.
As part of this project, HDR Engineering was tasked with reviewing the condition of
the existing pipeline from the 2019 Pipeline Inspection Report and recommending
suitable replacement strategies. The study provides pipeline replacement options,
cost analysis, and an implementation timeline. Understanding the cost of pipeline
renewal will allow Commission members to prepare for increases in future Whale
Rock CIP contributions, which will ultimately be required to keep the pipeline in proper
working order.
Pipeline Replacement Study Recommendations
The recommendations from the Pipeline Replacement Study are multi-phased and
are as follows:
1. Execute Alternative 3: This involves replacing the defective sections of
pipeline in the area of the golf course (223 feet), as was previously approved
by the commission. In addition, HDR recommends replacing one additional
section of piping to the east of the golf course.
2. Reinspect the Pipeline: After completing the initial repairs, it is recommended
that staff conduct a thorough reinspection of the pipeline to assess its condition
WHALE ROCK PIPELINE REPAIR
Page 75 of 141
City of San Luis Obispo, Title, Subtitle
Whale Rock Commission Report
Whale Rock Commission Meeting – May 8, 2025
Agenda Item 5 – Alternative Pipeline Replacement Study
and identify any further necessary actions. This inspection is shown within the
Whale Rock CIP schedule to occur in 2028.
3. Implement Alternative 6: Following the reinspection, proceed with a 100%
pipeline replacement over a specified period. This ensures that all
compromised sections are effectively addressed.
The study examined different methods for pipeline replacement. These methods
included full replacement with a new line, using the existing line as a sleeve for a
smaller diameter line, and adding an internal liner to the existing pipe. The
recommendation from HDR is to replace the entirety of the pipeline with a new line.
Staff will return to the Whale Rock Commission at a future meeting with more
information regarding how the timeline in which the pipeline would be replaced
(replacing all of the pipeline at once versus replacing smaller sections annually until
full replacement is completed) .
Engineering estimates for full scale pipeline replacement and associated costs can
be seen in Table 1 below. Staff have not identified which replacement timeline is most
efficient for pipeline replacement at this time but will coordinate with staff from
member agencies to develop a schedule for replacement that minimizes impacts to
each participating agency.
Table 1 – Whale Rock Pipeline Replacement Timeline Options
Option Replacement
(MI/YR)
Replacement
(%/YR)
# of YR for
100%
Replacement
Construction
OPCC ($/YR)
Project
OPCC
($/YR)
1 0.46 2.86 35.0 $1.99M $2.85M
2 0.53 3.33 30.0 $2.33M $3.33M
3 0.64 4.00 25.0 $2.79M $3.99M
4 0.80 5.00 20.0 $3.49M $5.00M
5 0.93 5.81 17.2 $4.06M $5.80M
6 1.07 6.67 15.0 $4.65M $6.65M
7 1.33 8.33 12.0 $5.82M $8.31M
8 1.60 10.00 10.0 $6.98M $9.98M
9 3.20 20.00 5.0 $13.95M $19.95M
10 16 100.00 1.0 $69.77M $99.77M
ENVIRONMENTAL REVIEW
No environmental review is required to update the Commissioners on this study’s
progress.
Page 76 of 141
City of San Luis Obispo, Title, Subtitle
Whale Rock Commission Report
Whale Rock Commission Meeting – May 8, 2025
Agenda Item 5 – Alternative Pipeline Replacement Study
FISCAL IMPACT
Staff is not requesting that the Commissioners consider funding pipeline renewal at
this time. Cost estimates within this staff report should be as a rough estimate of
financial commitments that commission members may be requested to make as part
of a full-scale pipeline replacement project.
ALTERNATIVES
The Commission may direct staff to further study pipeline rehabilitation options or
cease pipeline rehabilitation and not bring future pipeline renewal projects to the
Commission for consideration. These alternatives are not recommended as staff
have determined that the pipeline study is accurate, and the Whale Rock pipeline
will become less reliable over time.
Attachments:
A - Whale Rock Dam Pipeline Replacement Study
Page 77 of 141
Page 78 of 141
Whale Rock Dam –Pipeline
Replacement Study
City of San Luis Obispo
Alternative Analysis Report
January 2, 2025
Page 79 of 141
Whale Rock Dam –Pipeline Replacement Study
Alternative Analysis Report
January 2, 2025 | i
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Page 81 of 141
Whale Rock Dam –Pipeline Replacement Study
Alternative Analysis Report
January 2, 2025 | i
Contents
1 Purpose ............................................................................................................................................... 1
2 Background ......................................................................................................................................... 1
3 Design Considerations ........................................................................................................................ 6
3.1 Geotechnical ............................................................................................................................. 6
3.2 Mechanical ................................................................................................................................ 6
3.2.1 Replacement Pipeline Material .................................................................................... 6
3.2.2 Rehabilitation Pipeline Material .................................................................................... 6
3.2.3 Pipe Pressure ............................................................................................................... 7
3.2.4 Appurtenances ............................................................................................................. 7
3.2.5 Methodology ................................................................................................................. 7
3.2.6 Opinion of Probable Construction Cost (OPCC) .......................................................... 8
4 Alternatives .......................................................................................................................................... 9
4.1 Alt 1: Do Nothing ....................................................................................................................... 9
4.2 Alt 2: Golf Course Pipeline Project .......................................................................................... 10
4.3 Alt 3: Replace All Broken Bar Wraps & Localized Cylinder Wall Loss .................................... 12
4.4 Alt 4: Alt 3 + Broken Bar Wrap ................................................................................................ 12
4.5 Alt 5: Alt 4 + Localized Cylinder Wall Loss .............................................................................. 13
4.6 Alt 6: 100% Pipeline Replacement .......................................................................................... 13
4.7 Discussion ............................................................................................................................... 14
4.8 Summary ................................................................................................................................. 14
5 Recommendation .............................................................................................................................. 15
6 References ........................................................................................................................................ 15
Figures
Figure 1. Pure Technologies pipeline inspection limits ................................................................................ 1
Figure 2. Pipeline as-built drawing overlaid onto Google Earth to approximate pipeline alignment............ 8
Figure 3. Approximate pipeline alignment and appurtenance location recreated in Google Earth ............. 8
Figure 4. Relationship between historical break count and future performance ........................................ 10
Figure 5. Golf course pipeline project ........................................................................................................ 11
Figure 6. Sample sketch of pipeline replacement section with broken pipeline identified with red
“X”. The intermediate and end pipeline sticks will be replaced in addition to the broken
pipelines. ........................................................................................................................................ 11
Figure 7. Pipeline installed in paved road schematic ................................................................................A-3
Figure 8. Pipeline installed in unpaved road schematic ............................................................................A-4
Figure 9. Whale Rock Pipeline MS Excel hydraulic analysis spreadsheet for analyzing hydraulic
performance with potential reduced pipeline inside diameters .....................................................B-1
Figure 10. Pipeline alignment and elevations from Google Earth ............................................................B-2
Figure 11. Whale Rock Pipeline hydraulic analysis results in graphical format. 30-IN ID blue line
represents original pipeline. 25-IN ID with 30-IN OD red line represents 100% length
structural CIPP rehabilitation. 20-IN ID with 24-IN OD green line represents 100% length
Page 82 of 141
Whale Rock Dam –Pipeline Replacement Study
Alternative Analysis Report
ii | January 2, 2025
structural HDPE pipeline slip lining. 15-IN ID with 20-IN OD yellow line represents 100%
length structural HDPE pipeline slip lining. ...................................................................................B-3
Tables
Table 1. Summary of pipeline materials, lengths, and lengths between stops ............................................. 2
Table 2. Summary of pipeline defects ........................................................................................................... 3
Table 3. AWWA C-303 BWP broken bar wrap, quantity 10 .......................................................................... 4
Table 4. Localized cylinder wall loss, quantity 15 ......................................................................................... 4
Table 5. AWWA C-303 BWP broken bar wrap and localized cylinder wall loss, quantity 5 ......................... 4
Table 6. Localized Anomalies Different than Broken Bar Wraps and Cylinder Wall Loss, quantity 6 .......... 5
Table 7. Less certainty, quantity 22 .............................................................................................................. 5
Table 8. Pipeline material EULs ................................................................................................................... 9
Table 9. Pure Technologies identified broken bar wrap and localized cylinder wall loss at golf
course............................................................................................................................................. 11
Table 10. Pipeline replacement priority ...................................................................................................... 12
Table 11. Pure Technologies identified broken bar wrap and localized cylinder wall loss for
Alternative 3 ................................................................................................................................... 12
Table 12. 100% pipeline replacement as a function of total replacement years ........................................ 13
Table 13. Pipeline replacement alternatives summary ............................................................................... 14
Table 14. Pipeline installed in paved road per linear foot .........................................................................A-3
Table 15. Pipeline installed in unpaved road per linear foot .....................................................................A-4
Table 16. Alternative OPCC summary ......................................................................................................A-5
Table 17. Alt 2: Golf Course Pipeline Project OPCC .................................................................................A-6
Table 18. Alt 3: Replace All Broken Bar Wraps and Localized Cylinder Wall Loss OPCC .......................A-7
Table 19. Alt 4: Alt 3 + Broken Bar Wrap OPCC .......................................................................................A-8
Table 20. Alt 5: Alt 4 + Localized Cylinder Wall Loss OPCC .....................................................................A-9
Table 21. Alt 6A: 100% Pipeline Replacement minus Alt 3 OPCC ..........................................................A-10
Table 22. Alt 6B 100% Pipeline Replacement OPCC ..............................................................................A-11
Table 23. 30-IN diameter pipeline reduced flow rates, velocities, and TDHs ............................................B-5
Table 24. HDPE IPS Pressure Pipe DR and diameters for slip lining .......................................................B-5
Appendices
Appendix A. OPCC ........................................................................................................................A-1
Appendix B. Hydraulics Analysis ...................................................................................................B-1
Page 83 of 141
Whale Rock Dam –Pipeline Replacement Study
Alternative Analysis Report
January 2, 2025 | 1
1 Purpose
The purpose of the alternative analysis report (report) is to describe potential projects to replace
and/or rehabilitate the aging Whale Rock Dam Pipeline (pipeline) infrastructure. Six (6) alternates
are provided with their opinion of probable construction costs (OPCC), and timeline (immediate,
intermediate, and/or extended).
2 Background
The 30 IN pipeline was installed in 1959, 65 years old, and conveys raw water from Whale Rock
Reservoir to the San Luis Obispo Treatment Plant for a total distance of approximately 16 miles
northeast of San Luis Obispo, California, Figure 1. The pipeline is owned by the Whale Rock
Commission (Commission), consisting of the California Polytechnic State University (Cal Poly),
California Men’s Colony, and the City of San Luis Obispo (City).
Figure 1. Pure Technologies pipeline inspection limits
The pipeline is comprised of two pipeline materials:
Page 84 of 141
Whale Rock Dam –Pipeline Replacement Study
Alternative Analysis Report
2 | January 2, 2025
· AWWA M11 welded steel pipeline (WSP) at approximately 18,321 FT or 21.9% of total
length; and
· AWWA C-303 bar wrapped concrete cylinder pipeline (BWP) at approximately 65,523 FT or
78.1% of total length
Due to the pipeline age, the City procured Pure Technologies, a Xylem brand, in October 2018 to
conduct pipeline non-destructive interior testing with 99.0% tested, Table 1. Pure Technologies’
free-swimming electromagnetic inspection platform robot inspected, located, and identified pipe
sections with broken bar wraps, localized cylinder wall loss, broken bar wraps and localized cylinder
wall loss, and other anomalies not aforementioned.
Table 1. Summary of pipeline materials, lengths, and lengths between stops
Section Pipe Material Start Station End Station Distance (Mile)
A BWP, 30-IN 0+01 96+30 1.83
Pump Station Unknown 96+30 116+96 0.39
B Steel, 30-IN 116+96 227+00 2.34
BWP, 30-IN 227+00 295+05 1.29
Steel, 30-IN 295+05 313+00 0.34
BWP, 30-IN 313+00 387+46 1.42
Steel, 30-IN 387+46 402+05 0.28
BWP, 30-IN 402+05 559+30 2.98
Steel, 30-IN 559+30 579+00 0.38
BWP, 30-IN 579+00 602+85 0.45
Pump Station Unknown 602+85 605+00 0.04
C BWP, 30-IN 605+00 843+72 4.51
Total Distance 15.82 (inspected)
16.25 (total length)
Note(s):
1. The piping portions of the pump stations were not inspected.
From Pure Technologies’ Pipeline Condition Assessment Report Appendix B, Pure Technologies’
inspection platform accuracy decreases and uncertainties increase with the following occurrences:
· Change in pipeline; and
· Electromagnetic data noise
Additionally, Pure Technologies results did not quantify the following:
· Wall loss depths; and
Page 85 of 141
Whale Rock Dam –Pipeline Replacement Study
Alternative Analysis Report
January 2, 2025 | 3
· Quantity of broken bar wrap per pipeline stick
Lastly,
· In 2021, City replaced approximately 60-FT of pipeline near STA 368+35 due to corroded
cylinder wall failure. This defect was not detected by Pure Technologies in 2018;
· In 2023, City replaced approximately 17-FT of pipeline at STA 583+64 due to failed bar-
wrapping. This defect was detected by Pure Technologies in 1998; and
· Pure Technologies inspection is six years old and out of date. Pure Technologies
recommends an inspection frequency of every five years
Table 2. Summary of pipeline defects
Number of Pipe Include
Uncertainties Include
Uncertainties
Inspected 100% 83,844 FT
w/ Broken Bar Wraps 0.19% 160 FT
w/ Localized Cylinder Wall Loss 0.57% 481 FT
w/ Broken Bar Wraps and Localized
Cylinder Wall Loss 0.19% 160 FT
w/ Localized Anomalies Different than
Broken Bar Wraps and Cylinder Wall
Loss
0.36% 301 FT
w/ less certainty due to flow changes 0.80% 671 FT
Pump station sections (no data) 2.72% 2,281 FT
Number of Total Defects
(excluding PS sections) 2.11% 1,773 FT
Adjusted for uncertainties and uninspected in Table 2, the total pipeline uncertainty is approximately
1,773 FT or 2.11% of the pipeline. However, because of the undetected STA 368+35 pipeline
failure, the actual uncertainty might be higher than 2.11%. Therefore, HDR has the following
disclaimers:
1. HDR’s analysis is based on Pure Technologies October 2018 inspection and assumes the
following:
a. 2018 data as-is is accurate in 2024
b. The pipeline has not experience additional deteriorations since October 2019
2. Pipeline hydraulic transient, water hammering, pressure fluctuations, surge pressures,
thrusts, etc. are not issues;
3. Seismic events / earthquake ground shaking resulting in pipeline failures are not issues;
4. No bypass or backup will be required during pipeline replacement and/or rehabilitation; and
5. No environmental or culturally sensitive areas in the pipeline alignment for pipeline
replacement and/or rehabilitation due to previous ground disturbance
Page 86 of 141
Whale Rock Dam –Pipeline Replacement Study
Alternative Analysis Report
4 | January 2, 2025
The pipeline defects from Table 2 are further summarized in Table 3 to Table 7.
Table 3. AWWA C-303 BWP broken bar wrap, quantity 10
Ref # Piece
#
Start
STA
Stop
STA PL L (FT) PL Mat Reported
Class
Break Positional
Range (FT from
Start STA)
36 93 11+04 11+36 32 BWP 230 15.0-18.0
2511 1056 583+64 583+96 32 BWP 320 5.5-8.5
3262 737 686+59 686+90 32 BWP 340 6.5-8.5
3263 736 686+90 687+22 32 BWP 320 2.5-6.0
3264 735 687+22 687+54 32 BWP 340 2.5-5.5; 11.5-14.5
3266 733 687+86 688+18 32 BWP 340 3.5-5.5
3496 504 759+63 759+95 32 BWP 230 2.0-4.0
3545 455 774+58 774+89 32 BWP 230 2.5-4.0
3649 350 806+79 807+11 32 BWP 230 22.0-25.0
3662 337 810+93 811+25 32 BWP 230 22.5-27.0
Table 4. Localized cylinder wall loss, quantity 15
Ref # Piece
#
Start
STA
Stop
STA PL L (FT) PL Mat Reported
Class
279 2044 87+71 88+03 32 BWP 230-B
1085 N/A 145+87 146+23 36 STEEL N/A
1087 N/A 146+58 146+94 36 STEEL N/A
1189 N/A 176+82 177+17 36 STEEL N/A
1414 160 237+00 237+32 32 BWP 380
1501 1959 264+53 264+85 32 BWP 400
1508 1952 266+77 267+09 32 BWP 400
1532 1928 274+44 274+76 32 BWP 380
1775 1736 351+91 352+08 17 BWP 230
2480 N/A 573+31 573+66 36 STEEL N/A
3061 936 622+91 623+23 32 BWP 460
3066 932 624+18 624+50 32 BWP 480
3067 931 624+50 624+82 32 BWP 480
3068 930 624+82 625+14 32 BWP 480
3260 739 685+95 686+27 32 BWP 340
Table 5. AWWA C-303 BWP broken bar wrap and localized cylinder wall loss, quantity 5
Ref # Piece
#
Start
STA
Stop
STA PL L (FT) PL Mat Reported
Class
3262 737 686+59 686+90 32 BWP 340
3263 736 686+90 687+22 32 BWP 320
3264 735 687+22 687+54 32 BWP 340
3266 733 687+86 688+18 32 BWP 340
3496 504 759+63 759+95 32 BWP 230
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Alternative Analysis Report
January 2, 2025 | 5
Table 6. Localized Anomalies Different than Broken Bar Wraps and Cylinder Wall Loss, quantity 6
Ref # Piece
#
Start
STA
Stop
STA PL L (FT) PL Mat Reported
Class
194 2128 60+70 61+02 32 BWP 230-B
241 2082 75+71 76+03 32 BWP 230-B
3034 963 615+40 615+72 32 BWP 400
3437 563 741+59 741+91 32 BWP 240
3464 N/A 749+88 750+29 41 STEEL N/A
3523 477 767+89 768+21 32 BWP 300
Table 7. Less certainty, quantity 22
Ref # Piece
#
Start
STA
Stop
STA PL L (FT) PL Mat Reported
Class
3397 603 728+89 729+21 32 BWP 230
3398 602 729+21 729+53 32 BWP 230
3541 459 773+31 773+62 32 BWP 230
3542 458 773+62 773+94 32 BWP 230
3543 457 773+94 774+26 32 BWP 230
3715 284 826+50 826+82 32 BWP 230
3716 283 826+82 827+14 32 BWP 230
3738 261 833+86 834+17 32 BWP 230
3739 260 834+17 834+49 32 BWP 230
3740 259 834+49 834+81 32 BWP 230
3741 258 834+81 835+13 32 BWP 230
3742 257 835+13 835+45 32 BWP 230
3743 256 835+45 835+77 32 BWP 230
3744 255 835+77 836+09 32 BWP 230
3745 254 836+09 836+41 32 BWP 230
3746 253 836+41 836+73 32 BWP 230
3747 252 836+73 837+05 32 BWP 230
3748 251 837+05 837+37 32 BWP 230
3749 250 837+37 837+44 9 BWP 230
3750 249 837+44 837+67 32 BWP 230
3751 248 837+67 837+89 23 BWP 500
3752 247 837+89 838+21 32 BWP 500
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3 Design Considerations
3.1 Geotechnical
No geotechnical data was provided to support the pipeline alternative analysis. The assumption will
be to rehabilitate or replace the pipeline existing alignment potentially reducing the need for
geotechnical data. For pipeline replacement, bedding and pipeline embedment material will be
imported, and excavated soil will be used for trench backfill. To minimize environmental impacts, the
trenches will be excavated vertically with the use of trench boxes. For rehabilitation, the launch and
receiving pits be shored with sheet piles, which will be specified by the designers and designed by
the contractor’s shoring sub. The pipeline is installed in paved and unpaved areas and the condition
of the surface will be replaced to its original condition.
3.2 Mechanical
3.2.1 Replacement Pipeline Material
Based on discussions with the City, BWP is not a preferred material for the new pipeline segments
based on maintenance and replacement issues. The following materials are potential replacement
alternatives:
· WSP with cement mortar lining and coating. Cement mortar will be applied in the field at all
joints on the interior and exterior of the pipe;
· Plastic without additional cathodic protection. Use of plastic pipe would potentially cause
discontinuities in the existing cathodic protection system requiring bridging of the currents;
and
· Ductile iron pipeline (DIP) with cement mortar lining and coating. DIP has better corrosion
protection and material costs but heavier than WSP. Additionally, DIP has an intrinsic +100
pound per square inch (PSI) surge protection over its pressure class
The new pipeline material internal diameter should be equal or greater than the existing 30-IN
diameter. A 30-IN nominal diameter plastic pipeline will have an inside diameter smaller than 30-IN
potentially effecting hydraulic performances negatively. WSP is more costly than DIP for similar
performance. Therefore, DIP was selected as the alternative analysis pipeline replacement material.
However, the other replacement materials can be selected during design.
3.2.2 Rehabilitation Pipeline Material
Pipeline rehabilitation requires the original pipeline as the host. Rehabilitation can either be liner or
structural type. Rehabilitation requires bonding to the host pipeline. Rehabilitation liner is thinner
requiring the host pipeline to be structurally sound. A structural rehabilitation is thicker, becomes the
structural member, and utilized when the host pipeline is corroded, cracked, broken, and/or
otherwise structurally compromised with the host pipeline acting as the conduit to install the
structural liner. The following materials are potential rehabilitation alternatives for non-structural
liners and full structural rehabilitation:
· Cured-in-place pipe (CIPP) for structural and non-structural rehabilitation
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· Slip-lining for structural and non-structural rehabilitation
· Close-fit lining / die-draw lining / roll-down lining / fold-and-form lining for non-structural
rehabilitation
· Spiral wound lining for non-structural rehabilitation
· Centrifugal cast concrete pipe lining (CCCPL) for non-structural rehabilitation
· Geopolymer lining for non-structural rehabilitation
· Manufactured-in-place composite pipe (MICP) for non-structural rehabilitation
CIPP liner rehabilitations might reduce inside diameters by 2 to 3-IN to 27 to 28-IN inside diameter.
Whereas, CIPP structural rehabilitations might reduce inside diameters by 4 to 5-IN to 25 to 26-IN
inside diameter. For this alternative analysis, CIPP is assumed as the choice for rehabilitation.
Approximately 30-IN outside diameter (OD) CIPP installation span is limited to approximately 400-FT
or less between launching and receiving pits and limited to 1-90 degree elbow bend or 2-45 degree
elbow bends. However, other rehabilitation alternatives can be selected during design.
For slip lining rehabilitation, a smaller diameter carrier pipeline is inserted into the existing larger 30-
IN diameter casing pipeline with the annual space between the carrier and casing pipelines filled
with grout or controlled low-strength material (CLSM). The slip lining carrier pipeline can be either a
lining if the casing pipeline is structurally sound or structural if the casing pipeline is not structurally
sound. Slip lining cannot accommodate elbow bends and will require launching pits at every elbow
bend. Depending on the slip lining pipeline diameter, launching pits might be required at the casing
pipeline joint deflections.
3.2.3 Pipe Pressure
Minimum pipe pressure should meet or exceed the existing pipeline pressure class that ranges from
230 to 500 PSI. WSP and DIP can meet or exceed the required pressures, whereas, plastic pipeline
and rehabilitation (liner and structural) might not meet the higher required pressures.
Because plastic pipeline and rehabilitation (liner and structural) reduce pipeline inside diameter,
reduce hydraulic performance, and do not meet higher pressures, they have limited applications and
will not be recommended for the alternative analysis.
Refer to the appendix for additional pressure and hydraulic discussions.
3.2.4 Appurtenances
The pipeline appurtenances including but not limited to isolation valves, air release valves (ARVs),
combination ARVs, blowoffs (BOs), and cathodic test stations will be replaced as required with the
pipeline.
3.2.5 Methodology
The provided background data was reviewed the pipeline as-built drawing overlaid onto Google
Earth to determine the approximate pipeline alignment and appurtenance location, Figure 2 and
Figure 3, respectively.
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Figure 2. Pipeline as-built drawing overlaid onto Google Earth to approximate pipeline alignment
Figure 3. Approximate pipeline alignment and appurtenance location recreated in Google Earth
The as-built drawing data was inserted into worksheet, compared with Pure Technologies data, and
analyzed. All pipeline rehabilitation and replacement materials and installation methods were
analyzed with the following criteria for evaluating rehabilitation or replacement methods:
· To maintain or improve performance (hydraulics, corrosion resistance, etc.);
· To extend pipeline estimated useful life (EUL) / remaining useful life (RUL);
· To prevent unnecessary pipeline breaks;
· To identify most cost-effective methods to rehabilitate or replace including accessibility; and
· To increase confidence in decision making
3.2.6 Opinion of Probable Construction Cost (OPCC)
An AACE Class 5 estimate (-50% to +100% accuracy range) was developed for the pipeline
alternatives. Quantities were prepared based on the anticipated construction method and sequence.
Costs were applied based on AACE methodology for the Class 5 estimate level. The detailed
breakdown of costs is included in Appendix A.
Additional soft costs are included in Appendix A to provide additional indirect costs that may be
anticipated, including:
· Estimate and design contingency reflective of design
· Market volatility contingency due to supply chain issues, labor shortages, fuel prices, COVID,
inflation
· Construction risk contingency and post-award changes
· Non-contract costs such as permitting, right of way and construction management
The total project cost or total capital cost is the OPCC including soft costs:
· Engineering design
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· Engineering services during construction
· Construction management
· Permitting
4 Alternatives
This section summarizes the six (6) alternatives:
1. Alt 1: Do Nothing
2. Alt 2: Golf Course Pipeline Project
3. Alt 3: Replace All Broken Bar Wraps and Localized Cylinder Wall Loss
4. Alt 4: Alt 3 + Broken Bar Wrap
5. Alt 5: Alt 4 + Localized Cylinder Wall Loss
6. Alt 6: 100% Pipeline Replacement
4.1 Alt 1: Do Nothing
The Alternative 1 Do Nothing Alternative is reactive repairing pipeline section as it fails. This is
similar to the current practice. The historical repair costs can be adjusted for inflation and applied for
budgetary planning purposes. However, this will not be an accurate estimate going forward.
Pipeline material EUL is summarized in Table 8.
Table 8. Pipeline material EULs
Material Estimated Useful
Life (EUL)
Welded steel pipe (WSP) 50 – 70 YR
AWWA C303 bar wrapped pipe (BWP) 75-100 YR
Ductile iron pipe (DIP) 60-100+ YR
Polyvinyl chloride (PVC) 70 YR
High-density polyethylene (HDPE) 50-100 YR
The existing pipeline is approximately 65 years old. Therefore, the WSP RUL is approximately 10 to
35 years or (75 – 65) to (100 – 65). The WSP RUL is approximately -15 to +5 years. With good soil
conditions / environment, corrosion protection, and maintenance, the pipeline can last much longer
than their statistical EULs. However, as the pipeline ages and breaks, the breaks will become more
frequent, Figure 4.
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Figure 4. Relationship between historical break count and future performance
Figure 4 quantifies the relationship between historic break count and future performance for a
particular pipeline by calculating the proportion of pipeline that break again and the average duration
between subsequent breaks. This data indicates that as a pipeline experiences more breaks, the
duration until the next break becomes shorter. Both trends support the theory that historic break
count is a good indicator of future performance of a pipeline with the average break rate in California
and Nevada at 9.7 annual breaks per 100 miles per Folkman’s 2018 report titled Water Main Break
Rates in the USA and Canada: A Comprehensive Study. Average durations between subsequent
breaks shown in blue are two breaks in 6.7 years, four breaks in 3.9 years, and 11 breaks in 0.78
years. The proportions that will break again shown in orange are 47% after one break, 56% after
two breaks, and 100% after ten breaks.
Therefore, the Do Nothing Alternative is not viable due to the unpredictability, potential runaway high
maintenance and potential property damage costs, loss of service, and low of confidence by the
public and regulatory agencies. This alternative is not recommended.
4.2 Alt 2: Golf Course Pipeline Project
The Alternative 2 Golf Course Pipeline Project Alternative implements the Whale Rock Dam
Transmission Pipeline Replacement Project (STA 685+00 to 690+00) 100% Design Project, Figure
5. The construction project was previous put on hold for various reasons.
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Figure 5. Golf course pipeline project
This alternative replaces pipeline sections that have broken bar warps and localized cylinder wall
loss as previously identified by Pure Technologies, Table 9. The replacement total length of 223-FT
is greater than the identified length of 128-FT because the intermediate pipeline sections and ends
are also replaced, Figure 6. Applicable appurtenances are included in this alternative.
Table 9. Pure Technologies identified broken bar wrap and localized cylinder wall loss at golf course
Ref # Piece
#
Start
STA
Stop
STA PL L (FT) PL Mat Reported
Class
3262 737 686+59 686+90 32 BWP 340
3263 736 686+90 687+22 32 BWP 320
3264 735 687+22 687+54 32 BWP 340
3266 733 687+86 688+18 32 BWP 340
Figure 6. Sample sketch of pipeline replacement section with broken pipeline identified with red “X”.
The intermediate and end pipeline sticks will be replaced in addition to the broken pipelines.
Per 2023 Golf course pipeline project OPCC is approximately $1,071,000. With a 6% annual
escalation, the 2024 OPCC is approximately $1,136,000. However, through this OPCC effort, the
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2024 total construction OPCC is approximately $768,000 instead of $1,136,000. There total project
OPCC is approximately $1.11M.
4.3 Alt 3: Replace All Broken Bar Wraps & Localized
Cylinder Wall Loss
The Alternative 3 Replace All Broken Bar Wraps & Localized Cylinder Wall Loss is Alternative 2 with
one additional broken bar wrapped and localized cylinder wall loss pipeline section. This alternative
requires interior pipeline reinspection because reinspection is recommended every five (5) years and
because there had been an additional unidentified break.
The alternative analysis pipeline replacement priority is summarized in Table 10.
Table 10. Pipeline replacement priority
Priority Description
1 Broken bar wraps and localized cylinder wall loss
2 Broken bar wraps
3 Cylinder wall loss
Alternative 3 adds one additional location at approximately 100-FT of pipeline to Alternative 2, Table
11.
Table 11. Pure Technologies identified broken bar wrap and localized cylinder wall loss for
Alternative 3
Ref # Piece
#
Start
STA
Stop
STA PL L (FT) PL Mat Reported
Class
3262 737 686+59 686+90 32 BWP 340
3263 736 686+90 687+22 32 BWP 320
3264 735 687+22 687+54 32 BWP 340
3266 733 687+86 688+18 32 BWP 340
3496 504 759+63 759+95 32 BWP 230
The 2024 Construction and Project OPCCs are approximately $851,200 and $1,217,200,
respectively.
4.4 Alt 4: Alt 3 + Broken Bar Wrap
Alternative 4 includes all broken bar warps and localized cylinder wall loss and broken bar warps
damaged pipeline sections, Table 3 and Table 5 plus five locations and approximately 623-FT. This
alternative requires interior pipeline reinspection because reinspection is recommended every five
(5) years and because there had been an additional unidentified break. The 2024 Construction and
Project OPCCs are approximately $1.10M and $1.57M, respectively.
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4.5 Alt 5: Alt 4 + Localized Cylinder Wall Loss
Alternative 5 includes all broken bar warps and localized cylinder wall loss, broken bar warps, and
cylinder wall loss damaged pipeline sections, Table 3 to Table 5 plus fifteen locations and
approximately 2,623-FT. This alternative requires interior pipeline reinspection because reinspection
is recommended every five (5) years and since there had been an additional unidentified break.
Alternative 5 includes. The 2024 Construction and Project OPCCs are approximately $2.76M and
$3.94M, respectively.
4.6 Alt 6: 100% Pipeline Replacement
Alternative 6 eventually replaces 100% of the pipeline based on the criticality identified in Table 10
and budget constraints. This alternative requires interior pipeline reinspection because reinspection
is recommended every five (5) years and since there had been an additional unidentified break.
After reinspection, the pipeline section will be prioritized to develop a five-to-ten-year capital
improvement plan (CIP) for pipeline replacement. Near the end of the CIP, the pipeline again will be
reinspected to prioritize remaining pipeline replacement. This repeats until 100% of the pipeline will
be replaced.
Referring to Table 12, the options refer to the quantity of pipeline replacement per year and the
number of year for 100% pipeline replacement. For Alt 6 Option 3, assuming there is an annual
$2.79M budget and $3.99M for construction and project, respectively. Under Alt 6 Option 3, 100% of
the pipeline will be replaced in 25-years and 0.64 miles per year or 4.00% per year of the total
pipeline length.
Table 12. 100% pipeline replacement as a function of total replacement years
Option Replacement
(MI/YR)
Replacement
(%/YR)
# of YR for
100%
Replacement
Constr
OPCC
($/YR)
Project
OPCC
($/YR)
1 0.46 2.86 35.0 $1.99M $2.85M
2 0.53 3.33 30.0 $2.33M $3.33M
3 0.64 4.00 25.0 $2.79M $3.99M
4 0.80 5.00 20.0 $3.49M $5.00M
5 0.93 5.81 17.2 $4.06M $5.80M
6 1.07 6.67 15.0 $4.65M $6.65M
7 1.33 8.33 12.0 $5.82M $8.31M
8 1.60 10.00 10.0 $6.98M $9.98M
9 3.20 20.00 5.0 $13.95M $19.95M
10 16 100.00 1.0 $69.77M $99.77M
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4.7 Discussion
Table 12 and Appendix A opinion of probable construction costs (OPCCs) are based on traditional
cut-and-cover.
Detailed rehabilitation method (CIPP and slip lining) OPCCs are not provided because of unknown
variables required to develop reasonable accurate OPCCs in the current alternative analysis phase
included acceptable flow capacity reductions resulting from rehabilitation methods. At a high level,
the material cost for 30-IN OD non-structural lining is similar to new 30-IN diameter pipeline per
linear foot. Whereas the material cost for 30-IN OD structural lining is more than new 30-IN
diameter pipeline per linear foot. The excavation savings along the cut-and-cover pipeline alignment
are offset by the relatively large CIPP launch and receiving pits at approximately every 400-FT.
Additionally, CIPP equipment mobilization and demobilization cost is approximately $300,000.
Therefore, Alternatives 1, 2, and 3 construction OPCCs are higher for CIPP (non-structural and
structural) than traditional cut-and-cover. Alternatives 5 and 6 CIPP and cut-and-cover OPCCs
would be more similar to each other.
Slip ling and CIPP OPCCs would be more similar. However, slip lining will significantly reduce flow
rates due to the inside diameter (See Appendix B Figure 11) and potentially requiring excavation as
every elbow fittings; therefore, slip lining is not recommended for pipeline rehabilitation. Flow
capacity reductions of transmission mains are generally not preferred in the industry. Therefore, the
traditional cut-and-cover is preferred for the alternative analysis especially with a phased approach
to replace 100% of the pipeline over time.
4.8 Summary
Table 13 summarizes the pipeline replacement alternatives by method of cut-and-cover.
Table 13. Pipeline replacement alternatives summary
Alt Interior
Reinspection
# of
Location 1
Length 2
(FT)
OPCC
Construction
OPCC
Project
1 NA NA NA Unknown Unknown
2 NA 1 223 $777,800 $1.11M
3 Ö 2 323 $851,200 $1.22M
4 Ö 5 623 $1.10M $1.57M
5 Ö 15 2,623 $2.76M $3.94M
6 3 Ö Varies 3,379 $2.79M/YR $3.99M/YR
6 4 Ö Varies
323 (Yr 1) &
3,362 (Yr 2-
26)
$851,200
(Yr 1) &
$2.76M/YR
(Yr 2-25)
$1.22M
(Yr 1) &
$3.94M/YR
(Yr 2-26)
Notes:
1. Distinct locations of pipe segments
2. Approximate length
3. Assumes 100% pipeline replacement in a period of 25 years. The 100% OPCC is amortized
over the replacement period.
4. Assumes 100% pipeline replacement period of 25 years after executing Alt 3 in year one
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5. Alternatives: Alt 1-Do Nothing; Alt 2-Golf Course Pipeline Project; Alt 3-Replace All Broken Bar
Wraps and Localized Cylinder Wall Loss; Alt 4-Alt 3 + Broken Bar Wrap; Alt 5-Alt 4 + Localized
Cylinder Wall Loss; Alt 6-100% Pipeline Replacement
5 Recommendation
The recommendations are to first execute Alternate 3: Replace All Broken Bar Wraps & Localized
Cylinder Wall Loss, then reinspect the pipeline, and execute Alternative 6: 100% Pipeline
Replacement. The recommended installation method is cut-and-cover.
The recommendation Year One (Alternate 3) costs are approximately $851,200 and $1.22M for
construction and project costs, respectively. The recommendation Year 2 to 26 (Alternative 6 minus
Alternative 3) costs are approximately $2.76M/YR and $3.94M/YR for construction and project costs,
respectively.
6 References
1. List of Whale Rock Pipeline Leaks since 2013 (2013 to 2023)
2. Whale Rock Dam – Transmission Pipeline Replacement Project, November 2022 (Golf
Course Pipeline Project)
3. Condition Assessment of 30-Inch Whale Rock Conveyance Conduit V 2.0, Pure
Technologies, a Xylem brand, December 2019
4. Whale Rock Pipeline Relocation Project, Plans for the Construction of a 30 Inch Raw Water
Pipeline, 11 pages, Parsons Engineering Science, Inc., October 1999
5. Whale Rock Conveyance Conduit Plan and Profile STA 0+00 to STA 903+78 As-Built
Drawings, 80 pages, State of California Department of Water Resources Southern California
District, 1959
List of Appendices
Appendix A Opinion of Probable Construction Cost (OPCC)
Appendix B Hydraulic Analysis
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Appendix A. OPCC
Notes on opinion of probable construction cost (OPCC) development:
1. The 30 IN pipeline (pipeline) conveys raw water from Whale Rock Reservoir to the San Luis
Obispo Treatment Plant for a total distance of approximately 16 miles
2. Pipeline material:
a. Existing AWWA M11 welded steel pipeline (WSP) is approximately 18,321-FT, 3.47 mile,
or 21.9% of total length
b. Existing AWWA C-303 bar wrapped concrete cylinder pipeline (BWP) is approximately
65,523-FT, 12.41 mile, or 78.1% of total length
c. Replacement pipe is 100% AWWA C151 ductile iron pipe
3. Pipeline outside diameter:
a. Existing AWWA M11 outside diameter is unknown
b. Existing AWWA C-303 BWP has maximum outside diameter of 35-IN
c. For OPCC, replacement pipe is AWWA C151 ductile iron pipe has outside diameter of
32-IN
4. Pipeline installation:
a. The pipeline is installed in paved road approximately 2.5 mile or 15.6%
b. The pipeline is installed in unpaved road approximately 13.5 mile or 84.4%
c. Pipeline installed in paved road schematic and quantities per linear foot are shown in
Figure 7 and Table 14, respectively
d. Pipeline installed in unpaved road schematic and quantities per linear foot are shown in
Figure 8 and Table 15, respectively
5. Pipeline appurtenances
a. Appurtenances (isolation valves, air release / vacuum valves, blowoffs, etc.) are
assumed to be 20% of pipeline OPCC
b. Pipeline restraints (thrust blocks, collars, fasteners, harness, tie rods, etc.) are assumed
to be 5% of pipeline OPCC
c. Pipeline cathodic protection (bond straps, galvanic anode system, polyethylene
encasement, etc.) is assumed to be 5% of pipeline OPCC
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6. Miscellaneous:
a. Trench box / shoring box assumed
b. No dewatering and water treatment required
c. The cost for pipeline reinspection is excluded
d. Traffic control is assumed to be 10% of paved pipeline OPCC
e. Golf course lost income and site restoration are assumed at $250,000
7. OPCC:
a. AACE International class 5 with an accuracy range of -50% to +100%
b. Material and labor total costs are based on RSMeansOnline.com
c. This OPCC is for capital improvement projects (CIP)
8. Exclusions:
a. CIPP OPCC was excluded due to too many variables and unknown unknows
b. Slip lining OPCC was excluded due to too many variables and unknown unknows
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Figure 7. Pipeline installed in paved road schematic
Table 14. Pipeline installed in paved road per linear foot
DESCRIPTION
AREA VOLUME
(IN^2) (FT^2) (FT^3) (YD^3)
PAVEMENT 332.48 2.31 2.31 0.086
"T" SECTION (WINGS) 192.96 1.34 1.34 0.05
NATIVE 3953 27.45 27.45 1.02
BACKFILL 0 0 0 0
PIPE 962.11 6.68 6.68 0.25
BEDDING 708 4.92 4.92 0.18
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Figure 8. Pipeline installed in unpaved road schematic
Table 15. Pipeline installed in unpaved road per linear foot
DESCRIPTION
AREA VOLUME
(IN^2) (FT^2) (FT^3) (YD^3)
PAVEMENT 0 0 0 0
"T" SECTION (WINGS) 0 0 0 0
NATIVE 4189 29.1 29.1 1.08
BACKFILL 0 0 0 0
PIPE 962.1128 6.68 6.68 0.25
BEDDING 708 4.92 4.92 0.18
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Table 16. Alternative OPCC summary
Description Alt 2 Alt 3 Alt 4 Alt 5 Alt 6A Alt 6B
Subtotal Constr Cost $332,400 $363,758 $469,508 $1,178,371 $29,452,432 $29,814,674
General
Conditions (10%) $33,240 $36,376 $46,951 $117,837 $2,945,243 $2,981,467
Contractor
OH&P (12%) $39,888 $43,651 $56,341 $141,405 $3,534,292 $3,577,761
Mob / Demob
(5%) $16,620 $18,188 $23,475 $58,919 $1,472,622 $1,490,734
Bonds and
Insurance (3%) $9,972 $10,913 $14,085 $35,351 $883,573 $894,440
Subtotal $432,121 $472,885 $610,361 $1,531,883 $38,288,161 $38,759,077
Contingency
(50%) $216,060 $236,443 $305,181 $765,941 $19,144,081 $19,379,538
Subtotal w/
Contingency $648,181 $709,328 $915,542 $2,297,824 $57,432,242 $58,138,615
Mkt Volatility
Adj (20%) $129,636 $141,866 $183,108 $459,565 $11,486,448 $11,627,723
Total Construction
Cost $777,817 $851,194 $1,098,650 $2,757,389 $68,918,690 $69,766,338
High End of
Range (100%) $1,555,634 $1,702,387 $2,197,300 $5,514,778 $137,837,381 $139,532,676
Low End of
Range (-50%) $388,909 $425,597 $549,325 $1,378,695 $34,459,345 $34,883,169
Total Project Cost
Engineering
Design (12%) $93,338 $102,143 $131,838 $330,887 $8,270,243 $8,371,961
Engr Serv Sur
Constr (10%) $77,782 $85,119 $109,865 $275,739 $6,891,869 $6,976,634
Constr
Mgmt (15%) $116,673 $127,679 $164,797 $413,608 $10,337,804 $10,464,951
Permitting
(Excl Envir) (6%) $46,669 $51,072 $65,919 $165,443 $4,135,121 $4,185,980
Total Capital Cost $1,112,279 $1,217,207 $1,571,069 $3,943,066 $98,553,727 $99,765,863
High End of
Range (100%) $2,224,557 $2,434,414 $3,142,138 $7,886,133 $197,107,454 $199,531,726
Low End of
Range (-50%) $556,139 $608,603 $785,535 $1,971,533 $49,276,864 $49,882,932
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Table 17. Alt 2: Golf Course Pipeline Project OPCC
Item Description QT Unit Unit Cost Total Cost Comments
2 - Existing Conditions
2.1 Demolition, saw cutting, asphalt, <=3" deep 0 LF $1.63 $0.00 Paved
2.2 Demolish, piping & fittings, 30" diameter 234 LF $15.85 $3,708.90
2.3 Disposal: (E) pavement, bedding & pipeline 100 CY $15.36 $1,536.00
3 - Concrete
3.1 Sand, washed, for pipeline bedding (new) 43 CY 56.64 $2,415.13
13 - Special Construction
13.1
Pipeline cathodic protection: bond straps, galvanic
anode system, polyethylene encasement, etc. at m % of
PL length 1 LS $3,000 $3,000.00 5%
22 - Plumbing
22.1
Appurtenances: isolation valves, air release/vacuum
valves, blowoffs, etc. at n % of PL length 1 LS $11,000 $11,000.00 20%
31 - Earthwork
31.1
Excavation, trench, loam or sandy clay, 1 C.Y. excavator,
<=6' deep 300 CY $4.44 $1,332.00 Unpaved portion
31.2
Excavation, trench, loam or sandy clay, 1 C.Y. excavator,
<=6' deep 0 CY $4.44 $0.00 Paved portion
31.3 Hauling, 30 min/load/unload, 8 CY truck, 8 mi, 30 MPH 0 CY $10.97 $0.00
(E) pavement & bedding
for disposal
31.4 Hauling, 30 min/load/unload, 8 CY truck, 8 mi, 30 MPH 100 CY $10.97 $1,097.00 (E) pipeline for disposal
31.5 Backfill, sand and native, 300 HP dozer, 50' haul 300 CY $0.68 $204.00
31.6
Compaction, 4 passes, 6" lifts, riding, sheepsfoot or
wobbly wheel roller 600 CY $0.99 $594.00
32 - Exterior Improvements
32.1
Asphalt paving, plant mixed asphaltic base courses for
roadways, 4" thick 0 SY $25.79 $0.00
32.2 Golf course lost of income and site restoration 1 LS $250,000.00 $250,000.00 $250,000
33 - Utilities
33.1
Piping, ductile iron, mechnical joint, cement lined, 30"
diameter 234 LF $228.69 $53,513.46
33.2
Pipeline restraints: thrust blocks, collars, fasteners,
harness, tie rods, etc. at p % of PL length 1 LS $3,000 $3,000.00 5%
34 - Transportation
34.1 Traffic control at q % of paved PL length 1 LS $1,000 $1,000.00 10%
Subtotal Construction Cost $332,400.49
General Conditions 10% $33,240.05
Contractor OH&P 12% $39,888.06
Mobilization/Demobilization 5% $16,620.02
Bonds and Insurance 3% $9,972.01
Subtotal $432,120.64
Contingency 50% $216,060.32
Subtotal w/ Contingency $648,180.95
Market Volatility Adjustment 20% $129,636.19
Total Construction Cost $777,817.15 $3,324.00/LF
High End of Range 100% $1,555,634.29 $6,648.01/LF
Low End of Range -50% $388,908.57 $1,662.00/LF
Total Project Cost
Engineering Design 12% $93,338.06
Engineering Services During Construction 10% $77,781.71
Construction Management 15% $116,672.57
Permitting (Excluding Environmental) 6% $46,669.03
Total Capital Cost $1,112,278.52 $4,753.33/LF
High End of Range 100% $2,224,557.04 $9,506.65/LF
Low End of Range -50% $556,139.26 $2,376.66/LF
Page 105 of 141
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Alternative Analysis Report
January 2, 2025 | A-7
Table 18. Alt 3: Replace All Broken Bar Wraps and Localized Cylinder Wall Loss OPCC
Item Description QT Unit Unit Cost Total Cost Comments
2 - Existing Conditions
2.1 Demolition, saw cutting, asphalt, <=3" deep 0 LF $1.63 $0.00 Paved
2.2 Demolish, piping & fittings, 30" diameter 324 LF $15.85 $5,135.40
2.3 Disposal: (E) pavement, bedding & pipeline 100 CY $15.36 $1,536.00
3 - Concrete
3.1 Sand, washed, for pipeline bedding (new) 59 CY 56.64 $3,344.03
13 - Special Construction
13.1
Pipeline cathodic protection: bond straps, galvanic
anode system, polyethylene encasement, etc. at m % of
PL length 1 LS $4,000 $4,000.00 5%
22 - Plumbing
22.1
Appurtenances: isolation valves, air release/vacuum
valves, blowoffs, etc. at n % of PL length 1 LS $15,000 $15,000.00 20%
31 - Earthwork
31.1
Excavation, trench, loam or sandy clay, 1 C.Y. excavator,
<=6' deep 500 CY $4.44 $2,220.00 Unpaved portion
31.2
Excavation, trench, loam or sandy clay, 1 C.Y. excavator,
<=6' deep 0 CY $4.44 $0.00 Paved portion
31.3 Hauling, 30 min/load/unload, 8 CY truck, 8 mi, 30 MPH 0 CY $10.97 $0.00
(E) pavement & bedding
for disposal
31.4 Hauling, 30 min/load/unload, 8 CY truck, 8 mi, 30 MPH 100 CY $10.97 $1,097.00 (E) pipeline for disposal
31.5 Backfill, sand and native, 300 HP dozer, 50' haul 500 CY $0.68 $340.00
31.6
Compaction, 4 passes, 6" lifts, riding, sheepsfoot or
wobbly wheel roller 1,000 CY $0.99 $990.00
32 - Exterior Improvements
32.1
Asphalt paving, plant mixed asphaltic base courses for
roadways, 4" thick 0 SY $25.79 $0.00
32.2 Golf course lost of income and site restoration 1 LS $250,000.00 $250,000.00 $250,000
33 - Utilities
33.1
Piping, ductile iron, mechnical joint, cement lined, 30"
diameter 324 LF $228.69 $74,095.56
33.2
Pipeline restraints: thrust blocks, collars, fasteners,
harness, tie rods, etc. at p % of PL length 1 LS $4,000 $4,000.00 5%
34 - Transportation
34.1 Traffic control at q % of paved PL length 1 LS $2,000 $2,000.00 10%
Subtotal Construction Cost $363,757.99
General Conditions 10% $36,375.80
Contractor OH&P 12% $43,650.96
Mobilization/Demobilization 5% $18,187.90
Bonds and Insurance 3% $10,912.74
Subtotal $472,885.38
Contingency 50% $236,442.69
Subtotal w/ Contingency $709,328.07
Market Volatility Adjustment 20% $141,865.61
Total Construction Cost $851,193.69 $2,627.14/LF
High End of Range 100% $1,702,387.37 $5,254.28/LF
Low End of Range -50% $425,596.84 $1,313.57/LF
Total Project Cost
Engineering Design 12% $102,143.24
Engineering Services During Construction 10% $85,119.37
Construction Management 15% $127,679.05
Permitting (Excluding Environmental) 6% $51,071.62
Total Capital Cost $1,217,206.97 $3,756.81/LF
High End of Range 100% $2,434,413.94 $7,513.62/LF
Low End of Range -50% $608,603.49 $1,878.41/LF
Page 106 of 141
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Alternative Analysis Report
A-8 | January 2, 2025
Table 19. Alt 4: Alt 3 + Broken Bar Wrap OPCC
Item Description QT Unit Unit Cost Total Cost Comments
2 - Existing Conditions
2.1 Demolition, saw cutting, asphalt, <=3" deep 0 LF $1.63 $0.00 Paved
2.2 Demolish, piping & fittings, 30" diameter 630 LF $15.85 $9,985.50
2.3 Disposal: (E) pavement, bedding & pipeline 200 CY $15.36 $3,072.00
3 - Concrete
3.1 Sand, washed, for pipeline bedding (new) 115 CY 56.64 $6,502.27
13 - Special Construction
13.1
Pipeline cathodic protection: bond straps, galvanic
anode system, polyethylene encasement, etc. at m % of
PL length 1 LS $8,000 $8,000.00 5%
22 - Plumbing
22.1
Appurtenances: isolation valves, air release/vacuum
valves, blowoffs, etc. at n % of PL length 1 LS $29,000 $29,000.00 20%
31 - Earthwork
31.1
Excavation, trench, loam or sandy clay, 1 C.Y. excavator,
<=6' deep 800 CY $4.44 $3,552.00 Unpaved portion
31.2
Excavation, trench, loam or sandy clay, 1 C.Y. excavator,
<=6' deep 0 CY $4.44 $0.00 Paved portion
31.3 Hauling, 30 min/load/unload, 8 CY truck, 8 mi, 30 MPH 0 CY $10.97 $0.00
(E) pavement & bedding
for disposal
31.4 Hauling, 30 min/load/unload, 8 CY truck, 8 mi, 30 MPH 200 CY $10.97 $2,194.00 (E) pipeline for disposal
31.5 Backfill, sand and native, 300 HP dozer, 50' haul 800 CY $0.68 $544.00
31.6
Compaction, 4 passes, 6" lifts, riding, sheepsfoot or
wobbly wheel roller 1,600 CY $0.99 $1,584.00
32 - Exterior Improvements
32.1
Asphalt paving, plant mixed asphaltic base courses for
roadways, 4" thick 0 SY $25.79 $0.00
32.2 Golf course lost of income and site restoration 1 LS $250,000.00 $250,000.00 $250,000
33 - Utilities
33.1
Piping, ductile iron, mechnical joint, cement lined, 30"
diameter 630 LF $228.69 $144,074.70
33.2
Pipeline restraints: thrust blocks, collars, fasteners,
harness, tie rods, etc. at p % of PL length 1 LS $8,000 $8,000.00 5%
34 - Transportation
34.1 Traffic control at q % of paved PL length 1 LS $3,000 $3,000.00 10%
Subtotal Construction Cost $469,508.47
General Conditions 10% $46,950.85
Contractor OH&P 12% $56,341.02
Mobilization/Demobilization 5% $23,475.42
Bonds and Insurance 3% $14,085.25
Subtotal $610,361.01
Contingency 50% $305,180.51
Subtotal w/ Contingency $915,541.52
Market Volatility Adjustment 20% $183,108.30
Total Construction Cost $1,098,649.82 $1,743.89/LF
High End of Range 100% $2,197,299.65 $3,487.78/LF
Low End of Range -50% $549,324.91 $871.94/LF
Total Project Cost
Engineering Design 12% $131,837.98
Engineering Services During Construction 10% $109,864.98
Construction Management 15% $164,797.47
Permitting (Excluding Environmental) 6% $65,918.99
Total Capital Cost $1,571,069.25 $2,493.76/LF
High End of Range 100% $3,142,138.50 $4,987.52/LF
Low End of Range -50% $785,534.62 $1,246.88/LF
Page 107 of 141
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Alternative Analysis Report
January 2, 2025 | A-9
Table 20. Alt 5: Alt 4 + Localized Cylinder Wall Loss OPCC
Item Description QT Unit Unit Cost Total Cost Comments
2 - Existing Conditions
2.1 Demolition, saw cutting, asphalt, <=3" deep 900 LF $1.63 $1,467.00 Paved
2.2 Demolish, piping & fittings, 30" diameter 2,628 LF $15.85 $41,653.80
2.3 Disposal: (E) pavement, bedding & pipeline 1,100 CY $15.36 $16,896.00
3 - Concrete
3.1 Sand, washed, for pipeline bedding (new) 479 CY 56.64 $27,123.76
13 - Special Construction
13.1
Pipeline cathodic protection: bond straps, galvanic
anode system, polyethylene encasement, etc. at m % of
PL length 1 LS $31,000 $31,000.00 5%
22 - Plumbing
22.1
Appurtenances: isolation valves, air release/vacuum
valves, blowoffs, etc. at n % of PL length 1 LS $121,000 $121,000.00 20%
31 - Earthwork
31.1
Excavation, trench, loam or sandy clay, 1 C.Y. excavator,
<=6' deep 2,800 CY $4.44 $12,432.00 Unpaved portion
31.2
Excavation, trench, loam or sandy clay, 1 C.Y. excavator,
<=6' deep 600 CY $4.44 $2,664.00 Paved portion
31.3 Hauling, 30 min/load/unload, 8 CY truck, 8 mi, 30 MPH 400 CY $10.97 $4,388.00
(E) pavement & bedding
for disposal
31.4 Hauling, 30 min/load/unload, 8 CY truck, 8 mi, 30 MPH 700 CY $10.97 $7,679.00 (E) pipeline for disposal
31.5 Backfill, sand and native, 300 HP dozer, 50' haul 3,400 CY $0.68 $2,312.00
31.6
Compaction, 4 passes, 6" lifts, riding, sheepsfoot or
wobbly wheel roller 6,800 CY $0.99 $6,732.00
32 - Exterior Improvements
32.1
Asphalt paving, plant mixed asphaltic base courses for
roadways, 4" thick 350 SY $25.79 $9,026.50
32.2 Golf course lost of income and site restoration 1 LS $250,000.00 $250,000.00 $250,000
33 - Utilities
33.1
Piping, ductile iron, mechnical joint, cement lined, 30"
diameter 2,628 LF $228.69 $600,997.32
33.2
Pipeline restraints: thrust blocks, collars, fasteners,
harness, tie rods, etc. at p % of PL length 1 LS $31,000 $31,000.00 5%
34 - Transportation
34.1 Traffic control at q % of paved PL length 1 LS $12,000 $12,000.00 10%
Subtotal Construction Cost $1,178,371.38
General Conditions 10% $117,837.14
Contractor OH&P 12% $141,404.57
Mobilization/Demobilization 5% $58,918.57
Bonds and Insurance 3% $35,351.14
Subtotal $1,531,882.80
Contingency 50% $765,941.40
Subtotal w/ Contingency $2,297,824.20
Market Volatility Adjustment 20% $459,564.84
Total Construction Cost $2,757,389.04 $1,049.23/LF
High End of Range 100% $5,514,778.07 $2,098.47/LF
Low End of Range -50% $1,378,694.52 $524.62/LF
Total Project Cost
Engineering Design 12% $330,886.68
Engineering Services During Construction 10% $275,738.90
Construction Management 15% $413,608.36
Permitting (Excluding Environmental) 6% $165,443.34
Total Capital Cost $3,943,066.32 $1,500.41/LF
High End of Range 100% $7,886,132.64 $3,000.81/LF
Low End of Range -50% $1,971,533.16 $750.20/LF
Page 108 of 141
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Alternative Analysis Report
A-10 | January 2, 2025
Table 21. Alt 6A: 100% Pipeline Replacement minus Alt 3 OPCC
Item Description QT Unit Unit Cost Total Cost Comments
2 - Existing Conditions
2.1 Demolition, saw cutting, asphalt, <=3" deep 26,300 LF $1.63 $42,869.00 Paved
2.2 Demolish, piping & fittings, 30" diameter 84,048 LF $15.85 $1,332,160.80
2.3 Disposal: (E) pavement, bedding & pipeline 32,200 CY $15.36 $494,592.00
3 - Concrete
3.1 Sand, washed, for pipeline bedding (new) 15,315 CY 56.64 $867,465.01
13 - Special Construction
13.1
Pipeline cathodic protection: bond straps, galvanic
anode system, polyethylene encasement, etc. at m % of
PL length 1 LS $962,000 $962,000.00 5%
22 - Plumbing
22.1
Appurtenances: isolation valves, air release/vacuum
valves, blowoffs, etc. at n % of PL length 1 LS $3,845,000 $3,845,000.00 20%
31 - Earthwork
31.1
Excavation, trench, loam or sandy clay, 1 C.Y. excavator,
<=6' deep 89,400 CY $4.44 $396,936.00 Unpaved portion
31.2
Excavation, trench, loam or sandy clay, 1 C.Y. excavator,
<=6' deep 16,600 CY $4.44 $73,704.00 Paved portion
31.3 Hauling, 30 min/load/unload, 8 CY truck, 8 mi, 30 MPH 11,400 CY $10.97 $125,058.00
(E) pavement & bedding
for disposal
31.4 Hauling, 30 min/load/unload, 8 CY truck, 8 mi, 30 MPH 20,800 CY $10.97 $228,176.00 (E) pipeline for disposal
31.5 Backfill, sand and native, 300 HP dozer, 50' haul 106,000 CY $0.68 $72,080.00
31.6
Compaction, 4 passes, 6" lifts, riding, sheepsfoot or
wobbly wheel roller 212,000 CY $0.99 $209,880.00
32 - Exterior Improvements
32.1
Asphalt paving, plant mixed asphaltic base courses for
roadways, 4" thick 10,220 SY $25.79 $263,573.80
32.2 Golf course lost of income and site restoration 0 LS $0.00 $0.00 $250,000
33 - Utilities
33.1
Piping, ductile iron, mechnical joint, cement lined, 30"
diameter 84,048 LF $228.69 $19,220,937.12
33.2
Pipeline restraints: thrust blocks, collars, fasteners,
harness, tie rods, etc. at p % of PL length 1 LS $962,000 $962,000.00 5%
34 - Transportation
34.1 Traffic control at q % of paved PL length 1 LS $356,000 $356,000.00 10%
Subtotal Construction Cost $29,452,432
General Conditions 10% $2,945,243
Contractor OH&P 12% $3,534,292
Mobilization/Demobilization 5% $1,472,622
Bonds and Insurance 3% $883,573
Subtotal $38,288,161
Contingency 50% $19,144,081
Subtotal w/ Contingency $57,432,242
Market Volatility Adjustment 20% $11,486,448
Total Construction Cost $68,918,690 $819.99/LF
High End of Range 100% $137,837,381 $1,639.98/LF
Low End of Range -50% $34,459,345 $410.00/LF
Total Project Cost
Engineering Design 12% $8,270,243
Engineering Services During Construction 10% $6,891,869
Construction Management 15% $10,337,804
Permitting (Excluding Environmental) 6% $4,135,121
Total Capital Cost $98,553,727 $1,172.59/LF
High End of Range 100% $197,107,454 $2,345.18/LF
Low End of Range -50% $49,276,864 $586.29/LF
Page 109 of 141
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Alternative Analysis Report
January 2, 2025 | A-11
Table 22. Alt 6B 100% Pipeline Replacement OPCC
Item Description QT Unit Unit Cost Total Cost Comments
2 - Existing Conditions
2.1 Demolition, saw cutting, asphalt, <=3" deep 26,400 LF $1.63 $43,032.00 Paved
2.2 Demolish, piping & fittings, 30" diameter 84,372 LF $15.85 $1,337,296.20
2.3 Disposal: (E) pavement, bedding & pipeline 32,300 CY $15.36 $496,128.00
3 - Concrete
3.1 Sand, washed, for pipeline bedding (new) 15,374 CY 56.64 $870,809.04
13 - Special Construction
13.1
Pipeline cathodic protection: bond straps, galvanic
anode system, polyethylene encasement, etc. at m % of
PL length 1 LS $965,000 $965,000.00 5%
22 - Plumbing
22.1
Appurtenances: isolation valves, air release/vacuum
valves, blowoffs, etc. at n % of PL length 1 LS $3,860,000 $3,860,000.00 20%
31 - Earthwork
31.1
Excavation, trench, loam or sandy clay, 1 C.Y. excavator,
<=6' deep 89,700 CY $4.44 $398,268.00 Unpaved portion
31.2
Excavation, trench, loam or sandy clay, 1 C.Y. excavator,
<=6' deep 16,700 CY $4.44 $74,148.00 Paved portion
31.3 Hauling, 30 min/load/unload, 8 CY truck, 8 mi, 30 MPH 11,400 CY $10.97 $125,058.00
(E) pavement & bedding
for disposal
31.4 Hauling, 30 min/load/unload, 8 CY truck, 8 mi, 30 MPH 20,900 CY $10.97 $229,273.00 (E) pipeline for disposal
31.5 Backfill, sand and native, 300 HP dozer, 50' haul 106,400 CY $0.68 $72,352.00
31.6
Compaction, 4 passes, 6" lifts, riding, sheepsfoot or
wobbly wheel roller 212,800 CY $0.99 $210,672.00
32 - Exterior Improvements
32.1
Asphalt paving, plant mixed asphaltic base courses for
roadways, 4" thick 10,260 SY $25.79 $264,605.40
32.2 Golf course lost of income and site restoration 1 LS $250,000.00 $250,000.00 $250,000
33 - Utilities
33.1
Piping, ductile iron, mechnical joint, cement lined, 30"
diameter 84,372 LF $228.69 $19,295,032.68
33.2
Pipeline restraints: thrust blocks, collars, fasteners,
harness, tie rods, etc. at p % of PL length 1 LS $965,000 $965,000.00 5%
34 - Transportation
34.1 Traffic control at q % of paved PL length 1 LS $358,000 $358,000.00 10%
Subtotal Construction Cost $29,814,674
General Conditions 10% $2,981,467
Contractor OH&P 12% $3,577,761
Mobilization/Demobilization 5% $1,490,734
Bonds and Insurance 3% $894,440
Subtotal $38,759,077
Contingency 50% $19,379,538
Subtotal w/ Contingency $58,138,615
Market Volatility Adjustment 20% $11,627,723
Total Construction Cost $69,766,338 $826.89/LF
High End of Range 100% $139,532,676 $1,653.78/LF
Low End of Range -50% $34,883,169 $413.44/LF
Total Project Cost
Engineering Design 12% $8,371,961
Engineering Services During Construction 10% $6,976,634
Construction Management 15% $10,464,951
Permitting (Excluding Environmental) 6% $4,185,980
Total Capital Cost $99,765,863 $1,182.45/LF
High End of Range 100% $199,531,726 $2,364.90/LF
Low End of Range -50% $49,882,932 $591.23/LF
Page 110 of 141
Page 111 of 141
Whale Rock Dam –Pipeline Replacement Study
Alternative Analysis Report
January 2, 2025 | B-1
Appendix B. Hydraulic Analysis
As part of the scope of work, this section summarizes the high level hydraulic analysis considering
theoretical flow capacities, pipeline diameters, materials, and pressure ratings, elevations, and pump
station operations based on piping replacement, structural lining techniques, and slip lining
techniques. Whereas a detailed hydraulic analysis requires more in-depth examination of the
aforementioned.
The hydraulic analysis was created as a Microsoft Excel spreadsheet with Swanee-Jain equation
used to solved directly for the Darcy-Weisbach friction factor, Figure 9. Minor loses were assumed
to be a percentage of major loses. Only the approximate start (EL 187 FT), end (EL 420 FT), and
highest (EL 540 FT) elevations were considered with values determined from as-built drawings and
Google Earth, Figure 10. The pipeline segments were assumed to have their full pressure ratings
assuming the deteriorated segments are replaced for non-structural CIPP and slip lining pipeline
renovation. The pipeline pressure rating was 230 to 500 PSI with the higher pressure rating
immediately downstream of the booster pump station. The entire length of the pipeline was
assumed to have the homogeneous/same diameter. The booster pump station was assumed to be
upgraded as required. This hydraulics analysis excludes surge / transient pressure analysis that
could be significant due to volumes and velocities conveyed.
Figure 9. Whale Rock Pipeline MS Excel hydraulic analysis spreadsheet for analyzing hydraulic
performance with potential reduced pipeline inside diameters
Page 112 of 141
Whale Rock Dam –Pipeline Replacement Study
Alternative Analysis Report
B-2 | January 2, 2025
Figure 10. Pipeline alignment and elevations from Google Earth
The Whale Rock Pipeline hydraulic analysis results in graphic format is illustrated in Figure 11. The
x-axis represents the booster pump station pumping flow rate in million gallon per day (MGD). The
y-axis represents the energy, head, or total dynamic head (TDH) the booster pump station must add
to convey given flow rates from Whale Rock Reservoir to the San Luis Obispo Treatment Plant. The
booster pump station must provide a minimum head of approximately 150 PSI to overcome the static
elevation head from Whale Rock Reservoir to the San Luis Obispo Treatment Plant and the highest
elevation.
Page 113 of 141
Whale Rock Dam –Pipeline Replacement Study
Alternative Analysis Report
January 2, 2025 | B-3
Figure 11. Whale Rock Pipeline hydraulic analysis results in graphical format. 30-IN ID blue line
represents original pipeline. 25-IN ID with 30-IN OD red line represents 100% length structural CIPP
rehabilitation. 20-IN ID with 24-IN OD green line represents 100% length structural HDPE pipeline
slip lining. 15-IN ID with 20-IN OD yellow line represents 100% length structural HDPE pipeline slip
lining.
Figure 11 blue line represents the existing theoretical 30-in diameter pipeline. The theoretical
hydraulic limitations are either the booster pump station pump TDH, pipeline pressure rating
including surge pressure, and/or recommended flow velocity. Assuming a recommended maximum
flow velocity of seven feet per second (FT/S), the maximum theoretical flow rate results in the pump
TDH and pipeline pressure ratings exceeding system design and acceptable ranges. Therefore,
recommend maximum velocity will not be the limiting factor. Existing pipeline pressure rating ranges
from 230 to 500 PSI. Assuming, a pipeline maximum pressure rating of 500 PSI (outside the range
of Figure 11) results in flow velocity and rate of approximately 6.3 FT/S and 20 MGD, respectively.
However, 500 PSI exceeds the existing booster pump station TDH and reasonable new pump TDH.
Assuming a maximum pipeline pressure rating is 230 PSI (minimum pressure rating of the existing
pipeline as new pipeline), the flow velocity and rate are limited to approximately 5.0 FT/S and 10
MGD, respectively. 230 PSI could result in a reasonable pump TDH assuming the pipelines are at
their full pressure rating excluding surges. However, with the existing pipeline deteriorated
conditions, the unknown wall loss depths, and without having performed a surge analysis, the
pipeline flow velocities and rates should be reduced, resulting in reduced pump station TDH and
resulting surges,
Page 114 of 141
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Alternative Analysis Report
B-4 | January 2, 2025
Table 23.
Page 115 of 141
Whale Rock Dam –Pipeline Replacement Study
Alternative Analysis Report
January 2, 2025 | B-5
Table 23. 30-IN diameter pipeline reduced flow rates, velocities, and TDHs
Q (MGD) V (FT/S) TDH (FT) TDH (PSI)
4.0 1.26 389 169
4.5 1.42 397 172
5.0 1.56 406 176
5.5 1.73 416 180
6.0 1.89 427 185
Figure 11 red line represents the existing 30-in diameter pipeline with 2.5-IN thick CIPP lining
reducing pipeline inside diameter to 25-IN.
Table 24 summarizes HDPE iron pipe size (IPS) pressure pipe dimensional ratio (DR) and
diameters.
Table 24. HDPE IPS Pressure Pipe DR and diameters for slip lining
Outside Diameter (OD)
28 26 24 20
DR 9
(250 PSI)
Min Wall 3.111 2.889 2.667 2.222
Avg ID 21.40 19.88 18.35 15.29
DR 11
(200 PSI)
Min Wall 2.545 2.364 2.182 1.818
Avg ID 22.60 20.99 19.37 16.15
DR 13.5
(160 PSI)
Min Wall 2.074 1.926 1.778 1.481
Avg ID 23.60 21.92 20.23 16.86
Figure 11 green line represents the existing 30-IN diameter pipeline with HDPE 24-OD, 20-IN ID, DR
13.5 (160 PSI) slip lining with the existing 30-IN diameter pipeline casing as the structural member.
Figure 11 yellow line represents the existing 30-IN diameter pipeline with HDPE 20-IN OD, 15-IN ID,
DR 9 (250 PSI) slip lining with the HDPE slip lined pipeline as the structural member.
It is assumed that a relatively more rigid 20-IN OD HDPE DR-9 or less rigid 24-IN OD HDPE DR
13.5 slip lining can accommodate the existing 30-IN diameter pipeline joint deflections without
significant additional launching pits, whereas, 26 and 28-IN OD HDPE pipelines are too large in
diameters to accommodate the existing 30-IN diameter pipeline joint deflections requiring significant
additional launching pits.
Figure 11 red, green, and yellow lines assume that 100% of the 30-IN diameter pipeline length are
structurally CIPP or slip lined. 100% length structurally CIPP or slip lining are unlikely due to
relatively high costs and reduction in hydraulic performance. It is more likely that structurally CIPP
or slip lining will be applied as a phased approach similar to Alternative 6. Assuming if 50% of the
30-IN diameter pipeline length is eventually structurally slip lined with 20-IN ID pipeline, graphically
the hydraulic performance could be represented in Figure 11 as the 25-IN ID red line. However, if
structurally CIPP or slip lining will be applied as a phased approach, there will be significant costs for
mobilization with CIPP mobilization at approximately $300,000 per project.
Page 116 of 141
Whale Rock Commission Report
Whale Rock Commission Meeting – May 8, 2025
Agenda Item 6 – FY 2023-24 Financial Statements
FROM: Aaron Floyd, Utilities Director
PREPARED BY: Mychal Boerman, Utilities Deputy Director – Water
Tavy Garcia – Senior Accountant
SUBJECT: FY 2023-24 Financial Statements
RECOMMENDATION
Receive and file Fiscal Year 2023-24 Whale Rock Financial Statements
DISCUSSION
Summary
Each year the City receives an independent audit of the Whale Rock Commission’s
financial statements. This audit provides an opinion as to whether the financial
statements are prepared, in all material respects, in accordance with accounting
principles generally accepted in the United States of America. For the 2023-24 fiscal
year, the auditors have issued a “clean” opinion, meaning that the financial
statements are presented fairly in all material respects.
The Management’s Discussion and Analysis section includes financial and
operational highlights for the fiscal year and summary information on the
Commission’s financial position at year end.
As in prior years, the auditors have also provided a report on the internal controls
over financial reporting and, consistent with the findings for the City’s Annual
Comprehensive Financial Report, identified two areas of improvement, with one
being a material weakness related to journal entry posting, and the other being a
significant deficiency related to payroll module implementation. These findings, along
with the City’s responses are incorporated into the last section of the audited financial
statements (pages 37-40). The City’s finance department will work to correct these
two issues over the next year.
The Whale Rock Commission 2023-24 Financial Statements, as well as the auditor’s
reports, are provided in the attachment section of this report.
ENVIRONMENTAL REVIEW
The California Environmental Quality Act does not apply to the recommended action,
because the action does not constitute a “Project” under CEQA Guidelines Sec.
15278.
Page 117 of 141
FISCAL IMPACT
The proposed action would not result in fiscal impacts to the Whale Rock Commission
member agencies.
ALTERNATIVES
The commission could choose to request modifications to the financial statements if
an error is identified with the statements included in Attachment A.
ATTACHMENT
A – 2023-24 Whale Rock Commission Financial Statements
Page 118 of 141
Whale Rock Commission Report
Whale Rock Commission Meeting – May 8, 2025
Agenda Item 7 – 2025-26 Whale Rock Reservoir Budget
FROM: Aaron Floyd, Utilities Director
PREPARED BY: Mychal Boerman, Utilities Deputy Director - Water
SUBJECT: 2025-26 W hale Rock Reservoir Budget
RECOMMENDATION
Adopt the 2025-26 Whale Rock Reservoir Budget.
DISCUSSION
Summary
Pursuant to the Supplemental Agreement for the Construction and Operation of the
Whale Rock Project, San Luis Obispo County (February 1961), the Whale Rock
Commission has the powers and duties to consider and approve the annual budget
(Attachment E - Section C3). In alignment with this agreement, staff have developed
a proposed budget and proposed member agency contributions that considers
Operating, Salaries and Benefits, Capital, and Electrical Pumping expenditures.
These member agency contributions are summarized in the tables below.
Table 1 – 2025-26 Agency Contributions
City of San Luis
Obispo (55.05%)
Cal Poly State
University
(33.71%)
California Men’s
Colony (11.24%)
Total
Contribution
$1,626,461 $995,967 $332,088
O&M Allocation1 $770,597 $471,877 $157,339
CIP Contribution $93,507 $57,259 $19,092
CIP Reserve
Contribution
$762,357 $466,831 $155,657
Table 2 – 2025-26 Forecasted Pumping Charges
City of San
Luis Obispo
(1,100 AF)
Cal Poly State
University
(1,100 AF)
California Men’s
Colony
(300 AF)
Dairy
Creek
(50 AF)
Forecasted
Pumping
Charges
$306,306 $306,306 $83,538 $13,923
1 O&M Allocation does not include electricity costs associated with pump station operation. Participants
should budget for the total of “Total Contribution” (Table 1) plus “Forecasted Pumping Charges” (Table 2).
Page 119 of 141
The next sections describe the detailed budgets from which the recommendations
above are derived. Additional sections on recommending capital reserve
contributions are also included.
Detailed Budgets
Table 3 contains budget totals organized by cost categories and subcategories.
Table 3 – Detailed
Budgets
2024-25
Adopted
Budget
2025-26
Proposed
Budget
2026-27
Forecasted
Budget
Capital Asset
Expenses
$2,451,801 $1,554,704 $2,394,845
Capital Expenses $1,236,506 $169,859 $1,010,000
Legacy Projects $1,720,295
Transfers to/from Capital
Reserves
$(505,000) $1,384,845 $1,384,845
Salaries and Benefits $706,958 $795,293 $768,900
Salaries $504,086 $554,675 $514,770
Benefits $202,873 $240,618 $254,130
Operating Budget $1,370,294 $1,321,593 $1,324,290
Office Expenses $2,000 $8,466 $8,466
Operating Materials &
Supplies
$93,100 $93,050 $93,250
Services and Supplies $194,980 167,828 $182,853
Travel, Meeting, and Dues $9,350 $8,200 $8,200
Utilities – Electrical
Pumping
$760,225 $710,073 $687,100
Utilities – Other $28,036 $32,400 $33,000
General Government $282,603 $301,576 $311,421
Revenues $2,808,758 $3,671,589 $4,488,036
Charges for Services $2,070,252 $1,399,812 $1,399,091
Charges for Electricity $760,255 $710,073 $687,100
Charges for Contribution
to Capital Reserves
$0 $1,554,704 $2,394,845
Other Revenue $7,000 $7,000 $7,000
Net Revenue (Revenue
minus Expenditures)1
$1,720,295 $0 $0
Ending Year Balance 2024-25 2025-26 2026-27
Capital Reserve
Balance
$2,017,683 $3,402,528 $4,787,373
Unreserved Fund
Balance
$1,280,168 $1,280,168 $1,280,168
Tables including descriptions of the subcategories, more granular budget data, and
detailed capital projects forecasts are included as attachments A, B, and C. A copy
of the Whale Rock Fund Analysis is included as attachment D.
Page 120 of 141
Capital Reserve Balances and Recommendations
Capital reserve balance and staff recommendations for capital reserves in 2025-26
are outlined in Table 4. These recommendations will be reviewed annually to ensure
that reserve balances are sufficient to cover capital needs and to try to reduce the
frequency of large year-to-year variations in capital costs. Staff are recommending
increasing capital reserve contributions over the next two fiscal years in anticipation
of 200549-Whale Rock Pump Station Electrical Repairs (A and B), which is scheduled
for construction in 2027-28. Staff anticipate recommending a $4,000,000 utilization
of capital reserves across all partner agencies for 200549-Whale Rock Pump Station
Electrical Repairs (A and B) in 2027-28.
Table 4 – Capital
Reserves and
Recommendations
City of San Luis
Obispo (55.05%)
Cal Poly State
University
(33.71%)
California Men’s
Colony (11.24%)
2024-25 Capital
Reserve Balance
$1,189,754 $585,005 $242,922
2025-26 Capital
Reserve
Contributions
$762,357 $466,831 $155,657
2025-26 Capital
Reserve Balance
$1,952,112 $1,051,837 $398,579
This would result in the net capital contributions for 2025-26 outlined in Table 5.
Table 5 – Net
Capital
Contributions
City of San Luis
Obispo (55.05%)
Cal Poly State
University
(33.71%)
California Men’s
Colony (11.24%)
2025-26 Net
Capital
Contributions
$855,865 $524,091 $174,749
Staff will evaluate capital reserve levels and contributions on an annual basis to
reassess for sufficiency. Staff will continue to research best practices relative to
capital reserve levels and will present finding to the Whale Rock Commission a t a
future meeting.
Agency Contributions
The Whale Rock Commission members’ contributions are summarized in Table 1 and
Table 2. The largest expenditure increases, relative to the previous year, are primarily
related to increased contributions to capital reserves for 200549-Whale Rock Pump
Station Electrical Repairs (A and B).
A year-over-year summary of Whale Rock Commission members’ contributions are
included in Table 6.
Page 121 of 141
Table 6 – Year-Over- Year
Agency Contributions
2023-24
Actual
Contributions
2024-25
Adopted
Budget
2025-26
Proposed
Budget
City of San Luis Obispo
(55.05%)
$1,202,058 $1,476,364 $1,932,767
O&M Allocation $684,116 $721,170 $770,597
CIP Contribution $339,862 $402,694 $855,865
Pumping Charges $178,080 $352,500 $306,306
Cal Poly State University
(33.71%)
$952,015 $970,201 $1,302,273
O&M Allocation $418,920 $441,610 $471,877
CIP Contribution $284,695 $246,591 $524,091
Pumping Charges $248,400 $282,000 $306,306
California Men’s Colony
(11.24%)
$317,994 $355,193 $415,626
O&M Allocation $139,681 $147,247 $157,339
CIP Contribution $69,393 $82,221 $174,749
Pumping Charges $108,920 $125,725 $83,538
Total Member Contributions $2,472,067 $2,801,758 $3,650,666
ENVIRONMENTAL REVIEW
The California Environmental Quality Act does not apply to the recommended action,
because the action does not constitute a “Project” under CEQA Guidelines Sec.
15278.
ALTERNATIVES
The Whale Rock Commission members may elect not to approve the budget as
proposed or may elect to modify elements of the proposed budget. This
alternative is not recommended as the proposed budget allocates funding for staffing,
electrical costs, Capital Improvement Projects, and costs for other essential functions
related to the safety of Whale Rock Reservoir and delivery of raw water from the
reservoir for basic health and safety needs.
ATTACHMENT
A – Descriptions of Account Subcategories
B – Detailed Budgets (Account Level Detail)
C – Capital Project Forecast
D – Whale Rock Fund Analysis
E – Supplemental Agreement for the Construction and Operation of the Whale
Rock Project, San Luis Obispo County (February 1961)
Page 122 of 141
Item 7 - Attachment A
Subcategory Descriptions
Capital Expenses This subcategory describes project budgets proposed to be
allocated in the corresponding fiscal year.
Legacy Projects This subcategory describes project budgets that were approved in a
prior fiscal year but are still allocated for the current fiscal year.
Expenses for capital projects may be incurred in multiple fiscal years
due to the timing of the project.
Capital Reserves This subcategory describes agency contributions to a reserve
account for future capital projects. These funds are reserved and
can only be utilized as authorized by member agencies.
Salaries This subcategory describes all direct payment for salaries related to
operating the Whale Rock Reservoir. This includes regular salaries,
standby, and call back.
Benefits This subcategory describes all benefits for staff related to operating
the Whale Rock Reservoir. This includes retirement contributions,
CalPERS, and insurance.
Office Expenses This subcategory describes expenses such as paper, toner, binders,
and other miscellaneous office supplies.
Operating Materials and
Supplies
This subcategory describes all materials related to operating the
Whale Rock Reservoir. Some of the specific items covered by this
cost category include valves, pump repair materials, water meters,
fencing materials, etc.
Services and Supplies This subcategory describes expenses such as annual dam
inspections through the California Department of Water Resources,
minor pump and motor rebuilds, and other contract services.
Travel, Meeting, and Supplies This subcategory describes expenses related to education and
training such as AWWA conferences and other pertinent educations
opportunities.
Utilities – Electrical Pumping This subcategory describes the expenses related to pumping water
from the Whale Rock Reservoir to the Whale Rock Commission
members. While staff provided forecasted budget for this expense,
pumping charges are not collected through agency contributions,
and are billed separately based on proportional share of water
delivered.
Utilities – Other This subcategory describes utility expenses not related to pumping
water. This includes utilities like communications, garbage, and
facility and office electricity.
General Government This subcategory describes expenses related to internal support
services provided by the City, including the Finance, Human
Resources, and City Clerk’s Office Departments.
Charges for Services This subcategory includes all Whale Rock Commission Member
contributions, and any revenues related the fishing program.
Other General Government
Revenue
This subcategory describes all other revenue. It includes any sort of
interest on investments, rental revenues, etc.
Page 123 of 141
Page 124 of 141
Attachment B - Detailed Budgets (Account Level Details)
2025-26 Budget Data by Account Fiscal Year
Concat Account 2025 Budgeted 2026 Proposed 2027 Forecasted
31022-Whale Rock CIP Reserve Contribution - City (1,189,754.81)$ (762,357.17)$ (762,357.17)$
31023-Whale Rock CIP Reserve Contribution - Cal Poly (585,005.62)$ (466,831.25)$ (466,831.25)$
31024-Whale Rock CIP Reserve Contribution - CA Men's Colony (242,922.07)$ (155,656.58)$ (155,656.58)$
44101-Interest on Investment 1,000.00$ 1,000.00$ 1,000.00$
44310-Miscellaneous Revenue 6,000.00$ 6,000.00$ 6,000.00$
46706-Whale Rock Operating Charges 1,310,027.24$ 1,399,812.31$ 1,399,090.69$
46707-Whale Rock CIP Contributions 731,505.82$ 1,554,704.00$ 2,394,845.00$
46711-Water Distribution (Pumping) Charges 760,225.00$ 710,073.00$ 687,100.05$
51001-Salaries - Regular (461,660.77)$ (471,415.14)$ (474,159.10)$
51003-Salaries - Contract (10,179.78)$ -$ -$
51004-Salaries - Temporary -$ -$ -$
51010-Overtime (4,000.00)$ (3,000.00)$ (3,000.00)$
51017-Standby (22,245.00)$ (22,245.00)$ (22,245.00)$
51018-Call Back (6,000.00)$ (4,000.00)$ (4,000.00)$
52001-Retirement Contributions (40,810.22)$ (38,552.56)$ (38,775.36)$
52002-Retirement PARS - 401 (218.20)$ (222.38)$ (222.38)$
52003-PERS Unfunded Liability (117,571.53)$ (131,432.05)$ (142,168.73)$
53001-Employee Group Insurance (57,428.40)$ (57,449.40)$ (59,792.40)$
53002-Retiree Healthcare (7,528.74)$ (6,180.44)$ (6,350.50)$
55001-Medicare (6,639.43)$ (6,780.71)$ (6,820.49)$
56003-Contingency Expense (54,014.63)$ (11,366.20)$
61005-Data Processing Services (6,400.00)$ -$ -$
61007-Legal Services (20,000.00)$ (20,000.00)$ (20,000.00)$
61011-Maintenance (19,400.00)$ (16,200.00)$ (16,200.00)$
61013-Other Contract Services (140,130.91)$ (118,650.00)$ (134,000.00)$
61027-Control Systems (10,830.00)$ (12,978.00)$ (12,653.00)$
61503-Electric Service (773,161.00)$ (723,373.00)$ (700,400.05)$
61505-Communication Service (12,100.00)$ (15,500.00)$ (16,100.00)$
61506-Solid Waste Service (3,000.00)$ (3,600.00)$ (3,600.00)$
62002-Office Supplies (1,500.00)$ (1,500.00)$ (1,500.00)$
62007-Employee Recognition (500.00)$ (500.00)$ (500.00)$
62009-Software Licensing and Maint Agreements (6,466.00)$ (6,466.00)$
62501-Chemicals (500.00)$ (700.00)$ (700.00)$
62502-Construction Materials and Supplies (5,906.50)$ (5,900.00)$ (6,000.00)$
62503-Equipment Maintenance Supplies (5,000.00)$ (5,500.00)$ (5,500.00)$
62505-Machinery and Equipment (60,000.00)$ (60,000.00)$ (60,000.00)$
62506-Safety Materials and Supplies (2,150.00)$ (2,150.00)$ (2,150.00)$
62509-Misc Materials and Supplies (19,650.00)$ (18,800.00)$ (18,900.00)$
63001-Membership and Certifications (950.00)$ (600.00)$ (600.00)$
63002-Education and Training (6,900.00)$ (6,100.00)$ (6,100.00)$
63003-Trips and Meetings (1,500.00)$ (1,500.00)$ (1,500.00)$
71006-Project Expenditures (1,236,505.82)$ (169,859.00)$ (1,010,000.00)$
71999-Legacy Project Expenses (1,720,295.55)$
75002-Reimbursement Transfers Out (282,603.16)$ (301,576.00)$ (311,421.53)$
Grand Total (4,272,189.46)$ -$ -$
Page 125 of 141
Page 126 of 141
2025-26 Capital Projects Forecast Fiscal Year
Item Description Notes 2025 Budgeted 2026 Proposed 2027 Forecasted 2028 Forecasted 2029 Forecasted 2030 Forecasted 2031 Forecasted 2032 Forecasted 2033 Forecasted 2034 Forecasted 2035 Forecasted
1000074-IT Replacements - Annual Asset Maintenance Account 1000074-02-Asset Management (Cityworks - Utilities Integration) 5,980.00$
1000074-IT Replacements - Annual Asset Maintenance Account 1000074-12-Firewall Replacement 841.82$
1000074-IT Replacements - Annual Asset Maintenance Account 1000074-15-Network Security Upgrade 421.00$
1000074-IT Replacements - Annual Asset Maintenance Account 1000074-25-Radios, Mobiles and stations not replaced - EF & PW Only 10,000.00$
1000074-IT Replacements - Annual Asset Maintenance Account 1000074-27-Uninterruptible Power Supplies (UPS’s Servers and Storage) 1,962.00$
1000074-IT Replacements - Annual Asset Maintenance Account 1000074-29-Virtual Private Network Replace 2,341.00$
1000074-IT Replacements - Annual Asset Maintenance Account 1000074-30-VMware Infrastructure Upgrade -$
1000074-IT Replacements - Annual Asset Maintenance Account 1000074-31-VoIP Telephone System -$
1000521-Fleet Replacement: Utilities 1000521-40-Whale Rock Sevice Truck (1637) 100,000.00$
1000521-Fleet Replacement: Utilities 2000521-03.01 - Whale Rock 1/2 Ton Truck (1630) 82,500.00$
1000521-Fleet Replacement: Utilities 2000521-34-Fleet Services Vehicle Lift (1000181) -$ -$ -$ -$
1000521-Fleet Replacement: Utilities 2000521-35-Fleet - F150 4x4 Pick-up -$ -$ -$ -$
1000521-Fleet Replacement: Utilities 2000521-36-Fleet - 4x4 3/4 Ton Truck w/Utility Box & Crane -$ -$ -$ -$
1000521-Fleet Replacement: Utilities 2000521-37-Fleet - 4x4 SUV - Jeep (1738) -$ -$ -$ -$ 76,000.00$
1000521-Fleet Replacement: Utilities 2000521-38-Fleet - Boston Whaler -$ -$ -$ -$ 40,000.00$
1000521-Fleet Replacement: Utilities 2000521-39-Boat Trailer -$ -$ -$ -$ 10,000.00$
1000521-Fleet Replacement: Utilities 2000521-40-Fleet Services Vehicle Lift -$ -$ -$ -$
1000521-Fleet Replacement: Utilities 2000521-40-Whale Rock Portable Generator (1302) 200,000.00$
1000521-Fleet Replacement: Utilities 2000521-40-Whale Rock UTV w/ Dump Bed (1509) 30,000.00$
2000075-Major Facilities Maintenance [1000075]Carryover: 09.01-Corp Yard Fuel Island Siding / Recoating of Fuel Island and Dispensers 15,997.31$
2000176-Whale Rock Intake Valve Replacement [1000176]Carryover: 00-BASE 200,000.00$
2000181-Fleet Services Vehicle Lift [1000181]Carryover: 02-Whale Rock Fund Vehicle Lift -$
2000521-Fleet Replacement: Utilities [1000521]Carryover: 03.02-Whale Rock Utility Tractor 75,000.00$
2000521-Fleet Replacement: Utilities [1000521]Carryover: 03.03-Whale Rock Trailer 6,346.00$
2000521-Fleet Replacement: Utilities [1000521]Carryover: 03.04-Whale Rock Dump Trailer 8,438.75$
2000602-Utilities IT Replacements [1000074]1000074-02-Asset Management (Cityworks - Utilities Integration) -$ -$ -$
2000602-Utilities IT Replacements [1000074]1000074-12-Firewall Replacement -$ -$ -$ 975.90$ 1,131.34$
2000602-Utilities IT Replacements [1000074]1000074-15-Network Security Upgrade -$ -$ 460.04$ 502.70$ 549.31$
2000602-Utilities IT Replacements [1000074]1000074-25-Radios, Mobiles and stations not replaced - EF & PW Only -$ -$ -$ 12,298.74$
2000602-Utilities IT Replacements [1000074]1000074-27-Uninterruptible Power Supplies (UPS’s Servers and Storage) -$ -$ 2,143.93$ 2,342.73$ 2,559.96$
2000602-Utilities IT Replacements [1000074]1000074-29-Virtual Private Network Replace -$ -$ -$ 2,713.86$ 3,146.11$
2000602-Utilities IT Replacements [1000074]1000074-30-VMware Infrastructure Upgrade 8,301.00$ -$ -$ 9,070.73$ 9,911.83$ 10,830.92$
2000602-Utilities IT Replacements [1000074]1000074-31-VoIP Telephone System 1,558.00$ -$ -$ 2,032.84$
2000602-Utilities IT Replacements [1000074]1000074-Network Switching Infrastructure Equipment 724.55$ 839.95$
2000602-Utilities IT Replacements [1000074]1000074-Wireless System Citywide 1,299.55$ 1,506.53$
2000602-Utilities IT Replacements [1000074]Carryover: 01.03-Asset Management Cityworks Integration (Whale Rock Fund) 630.00$
2000603-Enterprise IT Replacements [1000074]Carryover: 09-Wireless System Citywide -$
2000604-Network IT Replacements [1000074]Carryover: 04.03-Network Switching Infratstructure Equipment (Whale Rock Fund Contributions) 625.00$
2001009-Whale Rock Major Maintenance [91335]02-Reservoir Fencing 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$
2001009-Whale Rock Major Maintenance [91335]03-Advanced Instrumentation and Safety Monitoring of Critical Infrastructure 250,000.00$ -$ -$ -$
2001009-Whale Rock Major Maintenance [91335]05-Evaporation/Weather Stations -$ -$ -$ -$
2001009-Whale Rock Major Maintenance [91335]07-Valve Replacement -$ -$ -$ 200,000.00$
2001009-Whale Rock Major Maintenance [91335]08-Roadway Pavement 520,000.00$
2001009-Whale Rock Major Maintenance [91335]08-Roadway Pavement (adjusted based on NE and MB feedback) (105,040.00)$
2001009-Whale Rock Major Maintenance [91335]Carryover: 00-BASE 184,030.40$
2001009-Whale Rock Major Maintenance [91335]Carryover: 01-Spillway Drain Repairs 263,929.90$
2001009-Whale Rock Major Maintenance [91335]Carryover: 02-Reservoir Fencing 20,000.00$
2001009-Whale Rock Major Maintenance [91335]Carryover: 04-Stilling Basin 216,332.47$
2001009-Whale Rock Major Maintenance [91335]Carryover: 06-Whale Rock Reroof of Shop and Residence 7,333.92$
2001009-Whale Rock Major Maintenance [91335]Carryover: 07-Inventory for Emergency Pipeline Repairs 2,593.50$
2001009-Whale Rock Major Maintenance [91335]Carryover: 08-Roadway Pavement 120,000.00$
2001009-Whale Rock Major Maintenance [91335]Shop Pavement Replacement 50,000.00$
2001009-Whale Rock Major Maintenance [91335]Stilling Basin 20,000.00$
2001009-Whale Rock Major Maintenance [91335]Water Dam Spillway Wall Concrete Profiling -$
2001017-Whale Rock Pipe Assessment and Repairs [91617]Carryover: 00-BASE 528,497.26$
2001017-Whale Rock Pipe Assessment and Repairs [91617]Carryover: 01-2001017-01 - Pipeline Replacement Alternatives Study 51,000.00$
2001019-Whale Rock Auto Control Valves [91718]Carryover: 00-BASE 19,541.04$
200549-Whale Rock Pump Station Electrical Repairs (A and B) [1000549]1000549-01-Whale Rock Pump Station Rehab (A and B) 500,000.00$ -$ 7,000,000.00$
200xxx-Emergency pipeline repair 00-BASE (moved from operating to CIP 2024-25) 30,000.00$ 30,000.00$ 30,000.00$ 30,000.00$ 30,000.00$ 30,000.00$ 30,000.00$ 30,000.00$
91617-Whale Rock Transmission Pipeline 91617-01-Pipeline Creek Crossings - point repairs 30,000.00$
91617-Whale Rock Transmission Pipeline 91617-01-Transmission Pipeline Repairs CM -$ -$ 60,000.00$ -$
91617-Whale Rock Transmission Pipeline 91617-01-Transmission Pipeline Repairs Design -$ 60,000.00$ -$ -$
91617-Whale Rock Transmission Pipeline 91617-01-Transmission Pipeline Repairs Inspection -$ -$ -$ 550,000.00$
91617-Whale Rock Transmission Pipeline 91617-01-Transmission Pipeline Repairs Repair -$ -$ 900,000.00$ -$
91617-Whale Rock Transmission Pipeline 91617-01-Transmission Pipeline Replacement 1,800,000.00$ 1,800,000.00$ 1,800,000.00$
xxxxxxx-Placeholder project (blank) -$ -$ -$ -$ 100,000.00$ 100,000.00$ 100,000.00$
Page 127 of 141
Page 128 of 141
Net Revenue
Account Category 2019-20 2020-21 2021-22 2022-23 2023-24 2024-25 2025-26 2026-27 2027-28 2028-29 2029-30 2030-31 2031-32 2032-33
Capital Asset Expense($84,591)($168,494)($76,025)($176,959)($577,105)($2,956,801)($169,859)($1,010,000)($7,833,904)($259,795)($2,036,190)($1,952,845)($1,948,211)($121,50
Capital Reserves ($2,017,683)($1,384,845)($1,384,845)$4,000,000 ($345,000)($345,000)($345,000)($345,000)($345,00
General Government($160,203)($183,978)($186,211)($190,488)($274,372)($282,603)($301,576)($311,422)($320,764)($330,387)($340,299)($350,508)($361,023)($371,85
Operations($337,039)($414,989)($309,075)($568,828)($1,094,505)($1,089,578)($1,020,017)($1,012,869)($898,246)($958,078)($977,214)($1,041,903)($1,063,479)($1,133,44
Revenue$1,868,814 $2,161,494 $2,394,658 $2,376,183 $3,046,366 $2,808,758 $3,671,589 $4,488,036 $5,851,642 $2,715,308 $4,544,769 $4,561,062 $4,614,001 $2,894,3
Salaries and Benefits($550,117)($545,122)($695,766)($664,555)($677,123)($734,282)($795,292)($768,900)($798,728)($822,048)($846,067)($870,806)($896,288)($922,53
Total $736,864 $848,912 $1,127,581 $775,353 $423,261 ($4,272,189)$0 $0 $0 ($0)($0)($0)($0)
Unreserved Fund Balance
$0M $5M
2019-20
2020-21
2021-22
2022-23
2023-24
2024-25
2025-26
2026-27
2027-28
2028-29
2029-30
2030-31
2031-32
2032-33
2033-34
2034-35
$2.4M
$3.2M
$4.4M
$5.1M
$5.6M
$1.3M
$1.3M
$1.3M
$1.3M
$1.3M
$1.3M
$1.3M
$1.3M
$1.3M
$1.3M
$1.3M
Whale Rock Fund Financial Position
Days of Cash on Hand
0K 1K 2K
2019-20
2020-21
2021-22
2022-23
2023-24
2024-25
2025-26
2026-27
2027-28
2028-29
2029-30
2030-31
2031-32
2032-33
2033-34
2034-35
976
1,226
1,581
1,518
1,144
256
257
262
275
262
256
244
238
227
222
211
Capital Reserve Contributions by Agency Member
($4M)
($3M)
($2M)
($1M)
$0M
$1M
$2M
2024-25 2025-26 2026-27 2027-28 2028-29 2029-30 2030-31 2031-32 2032-33 2033-34 2034-35
$2,017,683
$1,384,845
($4,000,000)
$345,000 $345,000 $345,000 $345,000
31022-Whale Rock CIP Reserve Contri…31023-Whale Rock CIP Res…31024-Whale Rock CI…
2025-26 Ending CIP Reserves
Balance - City of San Luis Obispo
$1,952,112
2025-26 Ending CIP Reserves
Balance - Cal Poly
$1,051,837
2025-26 Ending CIP Reserves
Balance - California Men's Colony
$398,579
CIP Reserve
Balance
Forecasted CIP
Contributions
Forecasted OpEx
Contributions
Forecasted
Pumping Charges
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Concat Account 2019-20 2020-21 2021-22 2022-23 2023-24 2024-25 2025-26 2026-27 2027-28 2028-29 2029-30 2030-31 203
44002-Rental Fees $5,049 $1,122
44101-Interest on Investment $71,545 $818 $39,588 $78,159 $183,176 $1,000 $1,000 $1,000 $1,000 $1,000 $1,000 $1,000
44107-Investment FMV Adjustment ($146,953)($17,408)$84,677
44201-Other Rent & Leasse Revenue $4,862 $3,366 $4,488 $5,895
44305-Damage to City Property $7,613
44310-Miscellaneous Revenue $743 $743 $1,091 $743 $742 $6,000 $6,000 $6,000 $6,000 $6,000 $6,000 $6,000
45307-Federal Stimulus Grant $260
46703-Utilities Base Charges ($3,034)
46706-Whale Rock Operating Charges $979,351 $1,015,607 $949,126 $1,126,924 $1,242,781 $1,310,027 $1,399,812 $1,399,091 $1,427,435 $1,491,043 $1,513,487 $1,580,970 $1
46707-Whale Rock CIP Contributions $576,621 $887,938 $1,401,424 $810,312 $693,550 $731,506 $1,554,704 $2,394,845 $3,833,904 $604,795 $2,381,190 $2,297,845 $2
46710-Fishing Program Revenues $2,095 $2,871 $1,933 $970 $1,471Total$1,868,814 $2,161,494 $2,394,658 $2,376,183 $3,046,366 $2,808,758 $3,671,589 $4,488,036 $5,851,642 $2,715,308 $4,544,769 $4,561,062 $4,
Account Category
All
Whale Rock Fund Revenue Details
Account Subcategory
All
Concat Account
All
Item Description
All
Assigned Member Agency
All
Revenue Actuals & Forecast
$0M
$2M
$4M
$6M
2019-20 2020-21 2021-22 2022-23 2023-24 2024-25 2025-26 2026-27 2027-28 2028-29 2029-30 2030-31 2031-32 2032-33 2033-34 2034-35
$1.87M $2.16M $2.39M $2.38M
$3.05M $2.81M
$3.67M
$4.49M
$5.85M
$2.72M
$4.54M $4.56M $4.61M
$2.89M $2.96M $3.09M
Actual Budgeted Forecasted
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Concat Account 2019-20 2020-21 2021-22 2022-23 2023-24 2024-25 2025-26 2026-27 2027-28 2028-29 2029-30
31022-Whale Rock CIP Reserve Contribution - City $1,189,755 $762,357 $762,357 ($2,202,000)$189,923 $189,923
31023-Whale Rock CIP Reserve Contribution - Cal Poly $585,006 $466,831 $466,831 ($1,348,400)$116,300 $116,300
31024-Whale Rock CIP Reserve Contribution - CA Men's Colony $242,922 $155,657 $155,657 ($449,600)$38,778 $38,778
51001-Salaries - Regular $343,044 $346,208 $370,480 $430,867 $434,659 $461,661 $471,415 $474,159 $500,424 $515,436 $530,899
51003-Salaries - Contract $6,310 $3,109 $10,180 $0 $0 $0 $0 $0
51004-Salaries - Temporary $157 $0 $0 $0 $0 $0 $0
51010-Overtime $7,734 $1,342 $1,661 $1,044 $791 $4,000 $3,000 $3,000 $3,090 $3,183 $3,278
51017-Standby $19,663 $19,167 $18,972 $18,539 $16,152 $22,245 $22,245 $22,245 $22,912 $23,600 $24,308
51018-Call Back $687 $871 $2,709 $5,037 $6,000 $4,000 $4,000 $4,120 $4,244 $4,371
52001-Retirement Contributions $33,020 $31,035 $31,662 $33,752 $40,619 $40,810 $38,553 $38,775 $39,939 $41,137 $42,371
52002-Retirement PARS -401 $143 $159 $173 $200 $220 $218 $222 $222 $238 $246 $253Total$1,131,950 $1,312,583 $1,267,077 $1,600,830 $2,623,105 $7,080,948 $3,671,589 $4,488,036 $5,851,642 $2,715,308 $4,544,769
Account Category
All
Whale Rock Fund Expenditure Details
Account Subcategory
All
Concat Account
All
Item Description
All
Assigned Member Agency
All
Expenditure Actuals & Forecast
$0M
$2M
$4M
$6M
2019-20 2020-21 2021-22 2022-23 2023-24 2024-25 2025-26 2026-27 2027-28 2028-29 2029-30 2030-31 2031-32 2032-33 2033-34 2034-35
$1.13M $1.31M $1.27M $1.60M
$2.62M
$7.08M
$3.67M
$4.49M
$5.85M
$2.72M
$4.54M $4.56M $4.61M
$2.89M $2.96M $3.09M
Actual Budgeted Forecasted
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Charge Account 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033
705.0000.44002 ($561)
705.1101.51001$9 $41 $81
705.1101.51017$490 $434 $370
705.1101.52001$39 $34 $31 $11
705.1101.53002 $1
705.1101.55001$6 $6 $5 $2
705.2001.75002$160,203 $183,978 $186,211
705.2007.44002 ($4,488)($1,122)
705.2007.44101($71,545)($818)($4,603)($75,127)($183,176)
705.2007.44107 $39,198 $17,408 ($84,677)
705.2007.44204($4,862) ($3,366)($4,488)($5,895)
705.6003.51001 $54
705.6003.52001 $4 $3
705.6003.55001 $1 $0
705.6005.52001($0)
705.6201.31022 $1,189,755 $762,357 $762,357 ($2,202,000)$189,923 $189,923 $189,923 $189,923 $189,92
705.6201.31023 $585,006 $466,831 $466,831 ($1,348,400)$116,300 $116,300 $116,300 $116,300 $116,30
705.6201.31024 $242,922 $155,657 $155,657 ($449,600)$38,778 $38,778 $38,778 $38,778 $38,77
705.6201.44101 ($34,985)($3,032) ($1,000)($1,000)($1,000)($1,000)($1,000)($1,000)($1,000)($1,000)($1,000
705.6201.44107 $107,755
705.6201.44305($7,613)
705.6201.44310($743)($743)($1,091)($743)($742)($6,000)($6,000)($6,000)($6,000)($6,000)($6,000)($6,000)($6,000)($6,000
705.6201.45307 ($260)
705.6201.46703$3,034
705.6201.46706($979,351)($1,015,607)($949,126)($1,126,924)($1,242,781)($1,310,027)($1,399,812)($1,399,091)($1,427,435)($1,491,043)($1,513,487)($1,580,970)($1,604,781)($1,676,373
Total ($736,864)($848,912)($1,127,581)($775,353)($423,261)$4,272,189 ($0)($0)($0)$0 $0 ($0)$0 ($0
General Ledger & Forecast Detail
Concat Account
All
Item Description
All
Fiscal Year
All
Account Category
All
Account Subcategory
All
Page 132 of 141
Item Description 2020 2021 2022 2023 2024
1000047-Fleet Replacements - Annual Asset Maintenance$0 $0 $0 $0
1000074-IT Replacements - Annual Asset Maintenance Account$2,624 $1,637 $3,035 $243
1000075-Major Facilities Maintenance - Annual Asset Maintenance Account$0 $0 $0 $0
1000176-Whale Rock Intake Valve Replacement$0 $0 $0 $0
1000181-Fleet Services Vehicle Lift$0 $0 $0 $0
1000521-Fleet Replacement: Utilities$0 $0 $0 $0
1000542-Water Treatment Plant Major Facility Maintenance$0 $0 $0 $0
2000075-Major Facilities Maintenance [1000075]
2000176-Whale Rock Intake Valve Replacement [1000176]
2000181-Fleet Services Vehicle Lift [1000181] $2,000
2000521-Fleet Replacement: Utilities [1000521] $20,215
2000602-Utilities IT Replacements [1000074]
2000603-Enterprise IT Replacements [1000074] $0
2000604-Network IT Replacements [1000074]
2001009-Whale Rock Major Maintenance [91335]$19,210 $125,511 $72,990 $89,897 $544,663
2001017-Whale Rock Pipe Assessment and Repairs [91617] $3,000
2001019-Whale Rock Auto Control Valves [91718] $7,227
200549-Whale Rock Pump Station Electrical Repairs (A and B) [1000549]
200xxx-Emergency pipeline repair
90069-Whale Rock Old Creek Habitat Plan (90069)$0 $0 $0 $0
90490-Water Distribution Telemetry System Upgrade (90490)$8,432 $0 $0 $0
91617-Whale Rock Pipe Assessment and Repairs (91617)$30,000 $0 $289 $83,753
91617-Whale Rock Transmission Pipeline
91675-Whale Rock Boathouse Replacement (91675)$2,928 $7,575 $0 $0
91716-Whale Rock Boat Dock (91716)$2,093 $0 $0 $0
Total $84,591 $168,494 $76,025 $176,959 $577,105
Capital Projects Details
Item Description
All
Notes
All
Fiscal Year
All
Page 133 of 141
Repor t Owner : Shane Whittington
Description: To analyze current fund position, forecast long term fund position, and present the information in a way that is easily understood by internal staff.
Last Updated: 03/31/2025
3/31/2025
Updated with finalized Operating and Capital Expenses. Rebalanced revenue accounts accordingly. Assumes a $4M draw on Capital Reserves in FY28 for 1000549-01-Whale Rock Pump Station Rehab (A and B).
Updated unreserved fund balance to include an additional 20%--this amount was previously backed out as part of a operating reserve.
2/2/2025
Updated FY24 with actuals, FY25 with modified budgeted, and FY26-FY35 with forecasted.
Updated Lookup tables to include 2033-2035.
This may change as better information is made available--for example, IT projects are not validated, salaries and benefits need to be finalized, various operating accounts need to be confirmed, and a CIP reserve
contributions/drawdowns need to be established. All table rows needing review contain the text "Needs Additional Review" in the Item Description.
1/22/2025
Updated query to unpivot 2033-2035. Deleted 2036-2039 for simplicity.
Add carryover projects to FY2025.
Fixed calcs in Lookup worksheet.
Add carryover POs (may not be complete?).
5/03/2024
Added audited financials for Audited Year End Fund Balance on the lookup page. This should equal the unrestricted net position in the audited financials. There was only a variance of $1.82 relative to what was
calculated. This is immaterial.
3/26/2024
Adjusted 2001009-08 Roadway Pavement to revised construction totals as determined by MB and NE. Reduced the 2024-25 allocation from $520,000 to $414,960.
3/20/2024
Added budget changes relative to Council Consent Item 6f (3/19/2024). This action added funding to 2000075-09.01 Corp Yard Fuel Island Rehabilitation and pulled from completed projects.
3/12/2024
Changed the source data to include anticipated budget changes for 2024-25. The changes are listed below:
1. Added $15,000 to as an ongoing expense for non-member legal representation (61007).
2. Removed $20,000 from emergency pipeline repairs (61013). This was added as a CIP and increased to $30,000 (200xxx-Emergency Pipeline Repair).
3. Increased the machinery and equipment budget from $20,000 to $60,000 to reflect inflation and aging assets (62505).
4. Changed the allocation for 1000549-Whale Rock Pump Station Electrical Repairs (A and B) from $1,960,620 to $500,000 for study and design. $2,000,000 was added to 2025-26 for construction.
5. Added $520,000 for 2001009-08 Roadway Pavement.
6. Increased 2001009-03 Advanced Instrumentation and Safety Monitoring of Critical Infrastructure from $108,923 to $250,000.
7. Adjusted the City of SLO's pumping charges to reflect changes in water use strategies (61503 and 46711).
8. Adjusted Capital Reserve accounts to reflect a $505,000 drawdown in 2024-25 and a $1,455,000 drawdown in 2025-26 (31022, 31023, and 31024).
9. Rebalanced agency contributions to reflect proportional share relative to these changes (46706, 46707, 46711).
2/7/2024
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