25 Edelman
Suite 120
Irvine CA 92618
949.420.3030 phone
530.756.5991 fax
westyost.com
April 1, 2026 SENT VIA: EMAIL
Rebecca Li, PE
Senior Civil Engineer
City of Garden Grove
13802 Newhope Street
Garden Grove, CA 92843
SUBJECT: Amendment Request 4 – City of Garden Grove – SCADA Program Manager Services
Dear Rebecca:
The purpose of this letter is to request an amendment to the Scope of Services, Budget and Schedule for the SCADA Program Manager Services. This amendment is necessary to address significant unforeseen conditions and additional scope that have arisen during program implementation.
BACKGROUND AND PREVIOUS AMENDMENTS
In February 2020, West Yost finaliz ed the SCADA Master Plan for the City of Garden Grove (the City). The overall SCADA Program consisted of 22 projects with a budget of $7.8M to be implemented over a 5-year period. Through a competitive process, the City of Garden Grove selected West Yost to execute the SCADA Program Manager Services contract on September 24, 2020, with a planned Program completion of October 1, 2024. Since that time, the City has executed three amendments to adapt to evolving program needs.
Since program initiation, the SCADA Program has been impacted by conditions that were not foreseeable at the time of contract execution, including pandemic -related supply chain disruptions, legacy infrastructure constraints, and evolving regulatory require ments. These factors have significantly increased the level of effort required to successfully deliver the program.
SCOPE MODIFICATION # 4
This scope modification request is developed to a ddress key overall Program changes , including additional or enhanced services provided to the City during the execution of the Program. This modification also extends the schedule of the Program and increases the budget to accommodate these additional services.
The updated scope of services is presented in Attachment A with additional task details to provide clarity based on the key changes to the Program. The following sections summarize the additional services provided to date and continuing through completion. The updated schedule and detailed cost estimate is provided in Attachment B.
Unforeseen Conditions
The following unforeseen conditions increased the level of effort required to execute the SCADA Implementation plan.
COVID-19 Supply Chain Impacts: The SCADA Implementation Program was initiated during the COVID-19 pandemic, which introduced significant uncertainty related to material availability, procurement delays, and contractor Rebecca Li
April 1, 2026
X-X-XXX-XXX-XXX
performance. These impacts resulted in extended equipment lead times and prolonged construction durations, requiring additional program management, coordination, and construction support efforts.
Lack of As -Built Documentation: Th e l e g a c y n a t u r e o f t h e C i t y’ s e x i s ti n g f a c i l i ti e s a n d t h e l a c k o f c o m p l e t e a n d accurate as-built documentation resulted in numerous unforeseen field conditions. As an example, the lack of as - built documentation required additional field investigations, engineering analysis, and design modifications to resolve conflicts and support compatibility with existing systems. The absence of reliable as -builts also resul ted in additional Requests for Information (RFIs), submittal reviews, and design changes throughout construction.
Contractor Performance: Contractor-related challenges further compounded these impacts. Issues with contractor performance, including delayed procurement, incomplete or low-quality submittals, and coordination gaps, resulted in significantly more submittal iterations and RFIs than originally anticipated. For example, certain submittals required u p t o f o u r ti m e s t h e p l a n n e d l e v e l o f r e v i e w e ff o r t , a n d c o n t r a c t o r i s s u e s l e d t o e x t e nd e d d e l a y s a n d i n c r e a s e d coordination demands.
Additional unforeseen construction issues included:
• Replacement of electrical equipment (i.e. Transformers, panel boards, etc. at Westhaven). • Equipment failures and vendor performance issues requiring additional engineering and field support. • Extended construction durations at multiple sites, significantly exceeding the originally planned construction durations.
These unforeseen conditions collectively increased the level of effort required across program management, design, construction management, and system integration activities.
Additional Scope
In addition to the unforeseen conditions listed above, several scope additions have been included in the SCADA Implementation Plan that were not included as part of the original scope of services.
Chemical and Mechanical Systems Enhancements : Chemical dosing skids and associated controls, chemical analyzers, and ancillary components were replaced at multiple sites. This work required additional engineering design, specification development, PLC programming, SCADA configuration, factory testing, and commissioning.
Mechanical design efforts were also expanded to accommodate new analyzers, solenoid control schemes, and associated infrastructure.
PFAS Treatment Integration: Since 2020, PFAS treatment systems have been added at multiple well sites. Integration of these systems into the SCADA network requires additional programming, system integration, development of Standard Operating Procedures (SOPs), operator training, and coordination with parallel PFAS design and construction projects.
SCADA Maintenance Support: To maintain system functionality during implementation, West Yost provided ongoing maintenance and support for core SCADA servers , hardware, software, patches and updates . T his e ff o r t w a s no t included in the original scope and required periodic technical support and system maintenance.
Increased Contractor and Submittal Support : West Yost has provided significantly increased support for submittal reviews, RFIs, coordination meetings, and construction issue resolution. The volume and complexity of submittals significantly exceeded original assumptions, requiring substantially more engineering review effort , coordination, and meetings.
Rebecca Li
April 1, 2026
X-X-XXX-XXX-XXX
Expanded Program Management Scope and Duration: The program management scope has significantly expanded since the original scope of services was contracted in 2020. This includes additional Program Management effort to coordinate for operational consistency with separate ongoing projects at the city , including a new wastewater systems upgrade project, coordination with multiple PFAS design and construction projects led by other design and construction firms, that directly impacted the SCADA Program. We estimate a 1 0% increase in effort above and beyond the original Program Management effort. This coordination made sure that these other projects were well aligned with the SCADA Program and adapting the Program to the changing system condition triggered by these projects.
The original program was scheduled for completion in 2024. The overall Program schedule has been extended through June 2029, requiring an additional 4 years and 8 months of Program Management support for the City.
Program Management is inclusive of efforts to coordinate the work within this Program, plus the interrelationships with multiple ongoing related projects that are being executed outside this Program.
AMENDMENT REQUEST
Our additional budget request is based on our estimated level of effort to complete the current Program, minus the remaining budget we expect at the anticipated time of acceptance of this amendment request. We request that the City authorize the additional budget and contract time extension required to complete this important Program.
The total requested additional budget amount is $605,002.42, as presented in Attachment B. West Yost will continue to perform the scope of services described above on a time-and-expenses basis at West Yost’s standard billing rates.
Our current Billing Rate Schedule is attached (Attachment C). Additional services not included in this scope of services will be performed only after receiving written authorization and a corresponding budget adjustment.
Schedule
Please see the detailed schedule attached (Attachment B). Thank you for providing West Yost the opportunity to be of continued service to the City of Garden Grove . We look forward to working with you on this important project.
Please call if you have any questions or require additional information.
Sincerely,
WEST YOST
Michael Gruenbaum Daniel Groves
Area Market Lead, Southern California Business Sector Lead, OTCR
Attachment(s):
Attachment A – Amended Scope of Services
Attachment B – Program Schedule and Budget
Attachment C – West Yost’s 2026 Billing Rate Schedule
Amended Scope of Services
Attachment A
25 Edelman
Suite 120
Irvine CA 92618
949.420.3030 phone
530.756.5991 fax
westyost.com
AMENDED SCOPE OF SERVICES
The following scope of services replaces the Scope of Services outlined in the original contract dated September 24, 2020, other than work completed through April 2026. This scope of services represents the work remaining to finish the Program based on activities occurring from April 2026 through February 2028.
Task 101.1 Program Management
The implementation of the SCADA Master Plan is a complex engagement that requires technical and project management capabilities. West Yost staff will manage the Program, including:
• Project Re-Kickoff Meeting- West Yost will prepare for and coordinate a project re-kickoff meeting. The project team will review the project approach, scope, and updated project schedule. • Monthly invoices will be prepared, including a monthly progress report • Quality Control – In accordance with our internal quality assurance/quality control (QA/QC) policy, quality assurance and quality control will be performed for each of the project deliverables prior to final submission to the City.
• Project Closeout – In accordance with our internal policy, we will conduct final project closeout activities, including final document delivery and final invoice.
Task 101.1 Assumptions
• The list of activities provides a summary of the types of services West Yost anticipates the City will require during the contract period.
• Additional Program Management services will be provided as requested by the Client within the approved budget.
• Technical Project Meetings will be held at the project level with the Project Manager assigned to each specific project.
Task 101.1 Deliverables
• West Yost will provide deliverables as listed above, including, but not limited to, Monthly Progress Reports, Quarterly Program Progress Summary Reports, Project Description updates, and RASCI charts.
Task 102. High Priority Startup, Commissioning, and Project Closeout This task will provide factory acceptance testing (FAT), engineering services during construction (ESDC), startup and commissioning services, and project closeout activities for sites where the design and construction are finished for the following HP2 sites: Well 27, Magnolia, West Garden Grove, and Lampson.
Task 102.1 Engineering Services During Construction
The objective of this task is to provide ESDC services needed for the HP2 project through project completion, including RFIs, submittals, and development of as-builts. o Requests for Information (RFI) – West Yost will respond to RFIs generated by the Contractor. o Submittals – West Yost will review remaining submittals. Since most submittals have already been reviewed, we are assuming there will be loop drawing submittals for West Garden Grove and Lampson, and up to two miscellaneous submittals.
o DEICs – West Yost will develop up to four Design Engineer Initiated Changes. o Closeout Submittals – West Yost will review closeout submittals provided by the Contractor: O&M manuals, shop drawings, red-lined as-builts, etc.
o As-Builts – West Yost will update contract documents to include Design Engineer Initiated Changes (DEIC) and red-lines from the contractor.
Task 102.2 Programming, Testing, and Commissioning Support The objective of this task is to finalize PLC programming, configuration of SCADA screens, attend Factory Acceptance Testing, and provide commissioning support for each site. o PLC programming/SCADA configuration – West Yost will develop PLC programming and SCADA screen updates for the remaining sites to align with programming from sites that have already been commissioned.
o Factory Acceptance Testing (FAT) – West Yost will attend one FAT for the Lampson control panel. o Commissioning Support – West Yost will provide loop checks, startup, and commissioning support for West Garden Grove and Lampson.
Task 102.3 Construction Inspection, Management, and Administration The objective of this task is to provide construction management, inspection, and administration support through the remainder of the HP2 project.
o CM/Inspection – West Yost will provide CM/inspection and administration support for West Garden Grove and Lampson sites.
o CM Admin – West Yost will receive and process RFIs (and responses), submittals (and responses), DEICs, pay applications, etc. West Yost will coordinate with the Contractor, host weekly progress meetings, review the Contractor’s certified payrolls for labor compliance, and work with the City to close out the construction contract.
Overall Task 102 Assumptions
o The scope of work for this task begins concurrently with the project re-kickoff meeting as part of Task 101 and ends on 10/21/2026 (the contract completion date for the HP2 project with LEED Electric). o Michael Gruenbaum will serve as Project Manager for Task 102. o City Project Manager will attend meetings associated with this task. o Meetings associated with this task will be conducted virtually via Microsoft Teams, unless otherwise specified through coordination between the City and West Yost.
o The construction contract for Trask and Westhaven (HP1) will be closed out prior to the amendment commencement date. No support for HP1 is included as part of this task. o West Yost will respond to a maximum of 15 RFIs (as of the date of the project re-kickoff meeting as part of Task 101).
o West Yost will review a maximum of 14 submittals, each assumed to have one resubmittal (as of the date of the project re-kickoff meeting as part of Task 101).
o West Yost will provide up to four DEICs (as of the date of the project re-kickoff meeting as part of Task 101). o West Yost will provide one construction inspector for two weeks of on-site commissioning support for West Garden Grove and three weeks of on-site commissioning support for Lampson. o Record drawings will be based solely on red-line markups provided by the contractor. o West Yost will provide four weeks of inspection support per site (West Garden Grove and Lampson).
Task 102 Deliverables
o West Yost will provide RFI responses via Procore.
o West Yost will provide submittal responses via Procore. o West Yost will provide DEICs via Procore.
o West Yost will provide final record drawings.
o West Yost will provide PLC and SCADA backup files in native format to the City. o West Yost will provide Procore daily inspection reports via email (weekly). o West Yost will provide reviewed copies of Contractor’s Certified Payroll Reports. o West Yost will provide Weekly Statements of Working Days.
Task 103. Medium Priority Flow Monitoring and Controls Design, Construction and Implementation – Core Sites
This task will develop a single design package, providing programming, configuration , and startup services for 29.
Also included are programming and Configuration Services for Well 19.
Task 103.1 Engineering/Design
This task includes attending up to eight (8) client-facing meetings to review electrical, instrumentation, or networking engineering concepts, issues to be resolved, and action items. West Yost will lead this meeting and provide meeting notes to the client.
West Yost will host virtual design review workshops at 60% and 90% design stages.
Design deliverables will be developed as 60%, 90%, and 100% design submittals to the City. A design workshop will be held with the City to discuss 60% and 90% review comments. The following drawings will be prepared for the design submittal:
1. Cover Sheet
2. Electrical Legend 1
3. Electrical Legend 2
4. Electrical Details
5. Well 29 Electrical Plan
6. Instrumentation Legend 1
7. Instrumentation Legend 2
8. Typical Well 29 P&ID
9. Well 29 Control Panel Exterior Elevation
10. Well 29 Control Panel Interior Elevation
11. Well 29 Control Panel - Power Distribution Diagram
12. Well 29 Control Panel - Control Schematic Diagram
Task 103.2 Programming and Configuration
Task 103.2.7 Well 29 (Typical for 103.2.6 Well 19)
Task 103.2.7.1 Control Strategy Modifications
T he o b j e c t i v e o f t h i s t a s k i s t o modify the control strategy for Well 29. This control strategy will serve as the primary reference for PLC programming, SCADA configuration, and alarm configuration. Control Strategy Modifications activities include the following:
o Modify Control Strategy – West Yost will review the existing control strategy and make modifications as needed for review by the City.
o City Review – Once the control strategy is modified, West Yost will send it to the City for review. o Develop Final Control Strategy – After City Review, West Yost will develop the final control strategy for review by the City.
Task 103.3.7.1 Assumptions
o The City will provide West Yost with existing control strategies for Well 29 prior to control strategy modifications.
o The City will provide West Yost with existing Well 29 PLC, SCADA, and OIT backup files prior to control strategy modifications.
o The City will provide West Yost with access to the Well 29 facility for assessment, as needed, to facilitate modifications to the control strategy.
o City comments will be consolidated by the City into one comment set, and there will be only one round of comment response for each submission.
Task 103.3.7.1 Deliverables
o West Yost will provide draft and final control strategies to the City.
Task 103.3.7.2 PLC Programming
The objective of this task is to develop PLC logic for Well 29 that aligns to the final control strategy. PLC Programming activities include the following:
• PLC Programming – Once approval of the final control strategy is received from the City, West Yost will develop PLC logic for the automation and control of Well 29. • PLC Program Testing – Once PLC logic has been developed, West Yost will test the logic in a West Yost lab environment prior to deploying to the Well 29 PLC.
Task 103.3.7.2 Assumptions
o Programming prior to Site Acceptance Testing and Commissioning activities will be done in a West Yost lab environment.
o The City will provide approval of the final control strategy prior to the start of PLC programming activities. o PLC programming of Well 29 will be implemented based on the final control strategy and will match existing controls; no new functionality will be provided.
o Well 29 consists of a constant speed well pump, flushing valve, system check valve, level transmitter, flow meter, PFAS treatment system, sodium hypochlorite system, and two (2) booster pumps that operate in duty/standby.
o The City will provide direction to West Yost regarding which Well 29 PLC firmware is required prior to the start of PLC Programming activities.
o The City will provide West Yost with the latest Well 29 Input/Output (I/O) list that shows the mappings of each I/O point to their respective I/O card and channel prior to the start of PLC Programming activities. o The City will provide West Yost with the latest Well 29 PLC backup file(s) prior to the start of PLC Programming activities.
o The City will provide West Yost with the latest City SCADA Standards prior to the start of PLC Programming activities.
o Hardware, software, and licenses associated with this task will be procured by the City. o Costs for hardware and software are not included in this scope.
Task 103.3.7.2 Deliverables
o West Yost will provide the City with a final Well 29 PLC backup file.
Task 103.3.7.3 SCADA Configuration
The objective of this task is to update Supervisory Control and Data Acquisition (SCADA) Human Machine Interface (HMI) screens for Well 29. SCADA Configuration activities include the following:
• HMI Screens Modifications – West Yost will modify existing SCADA HMI screens to use the updated tag names/mappings developed as part of PLC programming activities. • Configuration of Alarms, Trends, and Historian Tags – West Yost will perform the final configuration of alarms, trends, and historian tags based on the new tag names/mappings developed as part of PLC programming activities.
• HMI Screen Testing – Once SCADA HMI screen modifications are completed, West Yost will perform testing of the screens in a West Yost lab environment.
• HMI Screens Deployment – Once the SCADA screens are tested, they will be deployed to the City SCADA production environment.
Task 103.3.7.3 Assumptions
o SCADA screens currently exist for Well 29 in the Ignition SCADA application and will be modified by West Yost to use the newer PLC tag names/mappings developed as part of PLC programming activities. o The OIT will run the same Ignition SCADA application as the central SCADA system, so screens developed for the central SCADA system will be restored to the OIT (i.e., there will be no need to recreate SCADA screens specifically for use on the OIT).
o The City will provide approval of the final control strategy prior to the start of SCADA Configuration activities. o Modifications to SCADA screens will be based on the final control strategy and will match existing functionality; no new functionality will be provided.
o HMI screen development prior to Site Acceptance Testing and Commissioning activities will be done in a West Yost lab environment.
o The City will provide West Yost with the latest SCADA backup file(s) prior to the start of SCADA Configuration activities.
o The City will provide West Yost with the latest City SCADA Standards prior to the start of SCADA Configuration activities.
o Hardware, software, and licenses associated with this task will be procured by the City. o Required SCADA reports will be developed by the City. o Costs for hardware and software are not included in this scope.
Task 103.3.7.3 Deliverables
o West Yost will provide the City with a final SCADA backup file.
Task 103.3.7.4 Factory Acceptance Testing
The objective of this task is to coordinate with the panel builder to participate in and witness a Factory Acceptance Test (FAT) on the new Well 29 control panel. FAT activities include the following:
• Assess Control Panel – West Yost will perform an assessment of the control panel to check for damages, holes, loose wires, and other poor qualities that could negatively impact the SCADA system. • Test Network Functionality – West Yost will connect to the network equipment inside the control panel to test basic network functionality and to observe traffic flow between SCADA components. • Test PLC and Input/Output (I/O) Functionality – West Yost will go online with the PLC using a blank PLC program (consisting of SCADA tags but no logic) to perform basic tests on the processor and I/O cards. This includes having the panel builder send test signals to the inputs. • Test OIT Functionality – West Yost will configure the new OIT. West Yost will also import the latest HMI screens to the OIT to test functionality and communication with the PLC.
Task 103.3.7.4 Assumptions
o The FAT will be conducted within 100 miles of the City of Garden Grove. o The FAT will be conducted and led by the panel builder; West Yost will provide testing support to the panel builder.
o The panel builder will provide a test plan/checklist to participants and witnesses of the FAT prior to the start of FAT activities.
o The panel builder will flash the PLC with the required firmware prior to the start of FAT activities. o The panel builder will power the panel and associated equipment. o The panel builder will conduct required tests involving wires and electrical components. o West Yost will download to the PLC and conduct I/O checks with assistance from the panel builder. o A City representative will be present to witness the FAT. o FAT activities will last up to two (2) days.
Task 103.3.7.4 Deliverables
o The panel builder will provide a sign-off sheet of tested and completed items associated with the FAT.
Task 103.3.7.5 Site Acceptance Testing and Commissioning The objective of this task is to perform site acceptance testing and system commissioning for Well 29. Site Acceptance Testing and Commissioning Activities include the following:
• Assess Control Panel – West Yost will perform a visual assessment of the control panel to check for damages, holes, loose wires, and other poor qualities that could negatively impact the SCADA system. • Test Network Functionality – West Yost will connect to the network equipment inside the control panel to test basic network functionality and to observe traffic flow between SCADA components. • PLC Program Download – West Yost will configure the PLC with the required Internet Protocol (IP) address and download the final developed program to the PLC.
• OIT Screens Deployment – West Yost will import the final HMI screens to the Well 29 OIT. West Yost will also configure the OIT with the required Internet Protocol (IP) address. • SCADA Screens Deployment – West Yost will import the final HMI screens to the City of Garden Grove SCADA production environment.
• Field I/O Checkout – West Yost will work with the panel builder/electrician to perform I/O checks in the PLC program for equipment and instrumentation wired to the PLC. • System Testing and Startup – West Yost will conduct system tests in Remote Manual and Remote Auto to observe that system performance aligns with the final control strategy. • Equipment PID Tuning – West Yost will perform Proportional-Integral-Derivative (PID) tuning for required control valves and Variable Frequency Drives (VFDs) to align equipment performance to the final control strategy.
Task 103.3.7.5 Assumptions
o City representatives will be present and will assist West Yost with the requested troubleshooting of field equipment, instrumentation, network equipment, wiring, and the control panel. o Jumpering of connections, electrical current readings, and simulation, and wiring of panel components to support testing and I/O checkouts will be performed by the panel builder/electrician. o Site Acceptance Testing and Commissioning activities will last up to ten (10) days.
Task 103.3.7.5 Deliverables
o No deliverables will be provided as part of this task.
Task 103.3.7.6 SOP Development
T h e o b j e c t i v e o f t h i s t a s k i s t o d e v e l o p a d o c u m e n t e d standard operating procedure (SOP) for Well 29. This SOP will describe how to use the SCADA system to monitor and control the site. SOP Development activities include the following:
o Develop Draft SOP – West Yost will develop a draft SOP for review by the City. o City Review – Once the draft SOP is developed, West Yost will send it to the City for review. o Develop Final SOP – After City review, West Yost will develop the final SOP for review by the City.
Task 103.3.7.6 Assumptions
o No SCADA SOP for Well 29 currently exists.
o The City will provide West Yost with existing Well 29 PLC, SCADA, and OIT backup files prior to SOP development.
o The City will provide West Yost with access to the Well 29 facility for assessment, as needed, to facilitate development of the SOP .
o City comments will be consolidated by the City into one comment set, and there will be only one round of comment response for each submission.
Task 103.3.7.6 Deliverables
o West Yost will provide draft and final SOPs to the City.
Task 103.3 Bidding Services
West Yost will assist the City as requested with the bid documents, the bid openings, and evaluation of the bids for completeness, responsiveness, and price, including alternate prices and unit prices (as applicable). A summary will be issued to the City regarding the potential award of the contracts, and we will receive and review the bids, prepare a bid evaluation, and provide recommendations for the selection of bidders. West Yost will assemble and organize the contracts in accordance with the grant funding requirements to perform the work according to the plans and specifications for the project.
West Yost will review up to 10 bidder questions and requests for clarification (RFCs) submitted by the Contractor (assumes 2 hours per question or RFC response). The City’s CM will log bidder questions, RFCs , and their responses, and will be the primary point of contact for the Contractor and Engineer. Responses will be checked for accuracy and readability via a quality assurance/quality control (QA/QC) review process.
West Yost will prepare up to one addendum. It is assumed that the addendum could take up to 40 hours.
Task 103.4 Engineering Services During Construction
West Yost will provide limited engineering services during construction (ESDC) by attending construction progress meetings, attending team coordination meetings, answering questions from the contractor, providing design clarifications, reviewing submittals, and evaluating project change orders.
This task includes attend ing up to twelve (12) client-facing meetings during construction to review electrical, instrumentation, or networking engineering concepts, issues to be resolved, and action items. West Yost will lead this meeting and provide meeting notes to the client.
West Yost will review shop drawings, product data, certifications, work plans, schedules, operation & maintenance manuals, etc., that are provided to us by the Construction Manager (CM). We will prepare a review letter and send the review letter to the City’s CM. Assumes 40 submittals, 2 hours per submittal, and a maximum of 2 reviews per submittal. Submittal reviews will be checked for accuracy and readability via the QA/QC review process. Task 103.6 will maintain the Submittal Log, tracking submittals, an d will be the primary point of contact for the Contractor and Engineer.
West Yost will review up to 20 RFIs generated and issued by the Contractor (assumes 2 hours per RFI response). The City’s CM (Task 103.6) will log RFIs and their responses and will be the primary point of contact for the Contractor and the Engineer. RFI responses will be checked for accuracy and readability via the QA/QC review process.
West Yost will review up to four (4) change orders from the Contractor (16 hours assumed for this task).
West Yost will issue design clarifications when required to clarify the intent of the Contract Drawings and Specifications or to communicate a change to the Contract drawings and Specifications initiated by the Engineer or Owner. Design clarifications may include narrative descriptions, revised Contract Specifications , or Contractor Drawings. West Yost will prepare up to two design clarifications. It is assumed that each clarification could take up to 20 hours.
At project closeout, the Contractor will transmit their as -built dr awings to W est Y ost. W est Y ost will review these updated plans and compare them with our version of the as -built conditions. Using the Contractor’s as -built drawings, West Yost will create Record Drawings (PDF format; DWG format).
Task 103 Assumptions
o Zane Wilsterman will be the Project Manager for Task 103.1 and Task 103.4. o West Yost will work with the City to pre-qualify Contractors prior to issuing for bid. o Greg Smith will be the Project Manager for Tasks 103.3. o It is assumed that West Yost will not obtain permits for the project. o It is assumed that progress meetings during design or construction with the City will be virtual, attended by up to 2 West Yost team members. It is also assumed that the duration of these meetings will be 1 hour. o It is assumed that each design workshop (typically 2) will be held virtually with a 2-hour duration. o It is assumed that record drawing information will be included in the construction contractor’s redline markups without the need for separate instructions, interpretations, or separate sheets that are attached to the drawings or provided separately from the drawing set.
o Record Drawings will not be sealed or signed.
o Record Drawings will be delivered electronically in PDF and DWG format. o It is assumed that 12 months is the anticipated duration for construction phase services.
Task 103 Deliverables
o Meeting notes.
o 60% Drawings and Specifications (PDF format).
o 90% Drawings and Specifications (PDF format).
o 100% Drawings and Specifications will be signed electronically (PDF and DWG format). o One (1) electronic response per submittal reviewed.
o One (1) electronic response per RFI.
o Design Clarification(s).
o Record Drawings (PDF and DWG format).
Attachment B
Program Schedule and Budget
ID Task Name Duration Start Finish Work Cost
1 City of Garden Grove - SCADA Program Management 485 days Mon 4/20/26 Fri 2/25/28 2,416.55 hrs $605,002.42 2 Budget Remaining 0 days Mon 4/20/26 Mon 4/20/26 0 hrs ($50,000.00) 3 Key Milestones 0 days Mon 4/20/26 Mon 4/20/26 0 hrs $0.00 4 Amendment 1 Approved 0 days Mon 4/20/26 Mon 4/20/26 0 hrs $0.00 5 Task 101.1 Program Management 485 days Mon 4/20/26 Fri 2/25/28 306.87 hrs $96,286.32 10 Task 102. High Priority Projects 155 days Mon 4/20/26 Fri 11/20/26 974 hrs $270,076.00 11 Task 102.1 Engineering Services During Construction 155 days Mon 4/20/26 Fri 11/20/26 196 hrs $62,664.00 17 Task 102.2 Programming, Testing, and Commissioning Support 155 days Mon 4/20/26 Fri 11/20/26 248 hrs $64,968.00 21 Task 102.3 Construction Inspection, Management, and Administration 155 days Mon 4/20/26 Fri 11/20/26 530 hrs $142,444.00 25 Task 103. Medium Priority Projects 197 days Wed 7/1/26 Thu 4/1/27 1,135.68 hrs $288,640.10 26 Task 103.2 Programming and Configuration 197 days Wed 7/1/26 Thu 4/1/27 1,135.68 hrs $288,640.10 27 Task 103.2.7 Well 29 44 days Mon 2/1/27 Thu 4/1/27 545.28 hrs $143,252.50 33 Task 103.2.6 Well 19 52 days Wed 7/1/26 Thu 9/10/26 590.4 hrs $145,387.60 4/20
4/20
4/20
J M M J S N J M M J S N J M
Half 1, 2026 Half 2, 2026 Half 1, 2027 Half 2, 2027 Half 1, 2028 Task
Split
Milestone
Summary
Project Summary
Inactive Task
Inactive Milestone
Inactive Summary
Manual Task
Duration-only
Manual Summary Rollup
Manual Summary
Start-only
Finish-only
External Tasks
External Milestone
Deadline
Progress
Manual Progress
Project: City of Garden Grove -
Date: Wed 3/25/26
Attachment C
West Yost’s 2026 Billing Rate Schedule
(Effective January 1, 2026, through December 31, 2026)*
POSITIONS
ENGINEERING
Principal/Vice President
$392
Engineer/Scientist/Geologist Manager I / II
$370
/
$387
Principal Engineer/Scientist/Geologist I / II
$333
/
$355
Senior Engineer/Scientist/Geologist I / II
$297
/
$312
Associate Engineer/Scientist/Geologist I / II
$246
/
$265
Engineer/Scientist/Geologist I / II / III
$191
/
$221
/
$231
Engineering Aide
$117
Field Monitoring Services
$145
Administrative I / II / III / IV
$107
/
$133
/
$160
/
$176
ENGINEERING TECHNOLOGY
Engineering Tech Manager I / II
$384
/
$387
Principal Tech Specialist I / II
$353
/
$365
Senior Tech Specialist I / II
$320
/
$334
Senior GIS Analyst
$292
GIS Analyst
$277
Technical Specialist I / II / III / IV
$206
/
$231
/
$261
/
$291
Technical Analyst I / II
$148
/
$176
Technical Analyst Intern
$119
Cross-Connection Control Specialist I / II / III / IV
$154
/
$167
/
$188
/
$208
CAD Manager
$233
CAD Designer I / II
$181
/
$204
CONSTRUCTION MANAGEMENT
Senior Construction Manager
$373
Construction Manager I / II / III / IV
$222
/
$237
/
$251
/
$318
Resident Inspector (Prevailing Wage Groups 4 / 3 / 2 / 1) $200
/
$222
/
$247
/
$256
Apprentice Inspector
$181
CM Administrative I / II
$96
/
$130
Field Services
$256
2026 Billing Rate Schedule
LABOR CHARGES (DOLLARS PER HOUR)
■
Hourly rates include charges for technology and communication, such as general and CAD computer software, telephone calls, routine in-house copies/prints, postage, miscellaneous supplies, and other incidental project expenses. ■
Outside services, such as vendor reproductions, prints, and shipping; major West Yost reproduction efforts; as well as engineering supplies, etc., will be billed at the actual cost plus 15%. ■
The Federal Mileage Rate will be used for mileage charges and will be based on the Federal Mileage Rate applicable to when the mileage costs were incurred. Travel other than mileage will be billed at cost. ■
Subconsultants will be billed at actual cost plus 10%.
■
Expert witness services, research, technical review, analysis, preparation, and meetings will be billed at 150% of standard hourly rates. Expert witness testimony and depositions will be billed at 200% of standard hourly rates. ■
A finance charge of 1.5% per month (an annual rate of 18%) on the unpaid balance will be added to invoice amounts if not paid within 45 days from the date of the invoice. * This schedule is updated annually
(Effective January 1, 2026, through December 31, 2026)* Equipment Charges
EQUIPMENT
2" Purge Pump & Control Box
$300
/
day
Aquacalc / Pygmy or AA Flow Meter
$28
/
day
Emergency SCADA System
$35
/
day
Field Vehicles (Groundwater)
$200
/
day
Gas Detector
$80
/
day
Generator
$60
/
day
Hydrant Pressure Gauge
$10
/
day
Hydrant Pressure Recorder, Impulse (Transient)
$55
/
day
Hydrant Pressure Recorder, Standard
$40
/
day
Low Flow Pump Back Pack
$135
/
day
Low Flow Pump Controller
$200
/
day
Powers Water Level Meter
$32
/
day
Precision Water Level Meter 300ft
$30
/
day
Precision Water Level Meter 500ft
$40
/
day
Precision Water Level Meter 700ft
$45
/
day
QED Sample Pro Bladder Pump
$65
/
day
Skydio 2+ Drone (2 hour minimum)
$100
/
hour
Storage Tank
$20
/
day
Sump Pump
$24
/
day
Transducer Communications Cable
$10
/
day
Transducer Components (per installation)
$23
/
day
Trimble GPS – Geo 7x
$220
/
day
Tube Length Counter
$22
/
day
Turbidity Meter
$30
/
day
Turbidity Meter (2100Q Portable)
$35
/
day
Vehicle (Construction Management)
$18.75
/
hour
Water Flow Probe Meter
$20
/
day
Water Quality Meter
$50
/
day
Water Quality Multimeter
$185
/
day
Well Sounder
$30
/
day
BILLING RATES
2026 Billing Rate Schedule
* This schedule is updated annually