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HomeMy WebLinkAboutContract 60733-A1City of Fort Worth, Texas Emerging Contaminants PFAS Treatment Study Prof Services Agreement Amendment Template City Project No. 104942 Revision Date: November 23, 2021 Page 1 of 4 AMENDMENT No.1 TO CITY SECRETARY CONTRACT No. 60733 WHEREAS, the City of Fort Worth (CITY) and Brown and Caldwell, (ENGINEER) made and entered into City Secretary Contract No. 60733, (the CONTRACT) which was authorized by M&C 23-1075 on the 12th day of December, 2023 in the amount of $ 1,304,303.00; and WHEREAS, the CONTRACT involves engineering services for the following project: Emerging Contaminants - PFAS Treatment Study, CPN-104942; and WHEREAS, it has become necessary to execute Amendment No. 1 to the CONTRACT to include an increased scope of work and revised fee. NOW THEREFORE, CITY and ENGINEER, acting herein by and through their duly authorized representatives, enter into the following agreement, which amends the CONTRACT: 1. Article I of the CONTRACT is amended to include the additional engineering services specified in proposal attached hereto and incorporated herein. The cost to City for the additional design services to be performed by Engineer totals $1,797,323.00. (See Attached Funding Breakdown Sheet, Page -4-) 2. Article II of the CONTRACT is amended to provide for an increase in the fee to be paid to Engineer for all work and services performed under the Contract, as amended, so that the total fee paid by the City for all work and services shall be an amount of $3,101,626.00. 3. All other provisions of the Contract, which are not expressly amended herein, shall remain in full force and effect. EXECUTED and EFFECTIVE as of the date designated Assistant City Manager. City of Fort Worth, Texas Emerging Contaminants PFAS Treatment Study Prof Services Agreement Amendment Template City Project No. 104942 Revision Date: November 23, 2021 Page 2 of 4 APPROVED: City of Fort Worth ENGINEER Brown and Caldwell Dana Burghdoff Adam Evans, P.E. Assistant City Manager Vice President DATE: _______________DATE: ___06/12/2024_________ APPROVAL RECOMMENDED: Chris Harder, P.E. Director,Water Department Contract Compliance Manager : By signing, I acknowledge that I am the person responsible for the monitoring and administration of this contract, including ensuring all performance and reporting requirements. _______________________________ Matt Kusnir, P.E. Senior Capital Projects Officer City of Fort Worth, Texas Emerging Contaminants PFAS Treatment Study Prof Services Agreement Amendment Template City Project No. 104942 Revision Date: November 23, 2021 Page 3 of 4 APPROVED AS TO FORM AND LEGALITY:M&C: __24-0513__________ Date: _6/11/2024________ Douglas W. Black Sr. Assistant City Attorney ATTEST: Jannette Goodall City Secretary City of Fort Worth, Texas Emerging Contaminants PFAS Treatment Study Prof Services Agreement Amendment Template City Project No. 104942 Revision Date: November 23, 2021 Page 4 of 4 FUNDING BREAKDOWN SHEET City Secretary No. 60733 Amendment No. 1 Department Fund-Account-Center Amount Water Fund 56002 Water & Sewer Capital Project $1,797,323.00 Total: $1,797,323.00 ATTACHMENTA PROFESSIONAL ENGINEERING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 ATTACHMENT A PROFESSIONAL ENGINEERING SERVICES FOR AMENDMENT N0.1 SOUTH HOLLY WTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 The scope set forth herein defines the work to be performed by the ENGINEER. Both the CITY and ENGINEER have attempted to clearly define the work to be performed. PROJECT DEFINITION AND BACKGROUND In response to the United States Environmental Protection Agency's (EPA's) final maximum contaminant levels (MCLs) for PFAS compounds in drinking water, the CITY initiated a PFAS management strategy focused on reduction through source identification and, if needed, removal through treatment. To support this, the CITY is conducting a PFAS monitoring program through periodic testing of raw water sources, drinking water, and sanitary sewer to better understand the presence of these compounds throughout the water- cycle. From this testing, the CITY has confirmed ambient PFAS compound concentrations which exceed the EPA's MCLs in their Lake Worth water supply reservoir. Lake Worth is the primary raw water supply to the existing North Holly (80 MGD) and South Holly (100MGD) Water Treatment Plants (WTPs). Testing of the process waters throughout the North Holly and South Holly WTPs confirmed the existing treatment processes do not mitigate the ambient PFAS concentrations. Based on preliminary results from the EMERGING CONTAMINANTS — PFAS TREATABILITY STUDY (Treatability Study), granular activated carbon (GAC) adsorption was demonstrated as an effective process for treatment of the PFAS compounds (PFOA, PFOS, and PFHxS), which were detected in the South Holly WTP filtered water (post- biofiltration) at concentrations exceeding the established EPA MCLs. In effort to meet regulatory compliance requirements (PFAS MCLs and enforcement deadlines), the CITY determined it is necessary to develop the basis of design and associated implementation plan to integrate a post-filter PFAS treatment facility, utilizing GAC, within the South Holly WTP treatment processes. Texas Commission on Environmental Quality (TCEQ) guidance for MCL compliance has not been finalized, however TCEQ provided preliminary guidance that PFAS MCL compliance will be similar to other MCLs, requiring compliance at the point-of-entry (POE) to the distribution system and water blending upstream of the POE will be allowed. The North Holly and South Holly WTPs have individual POEs. Due to current water demands, facility operational practices, and space limitations of North Holly WTP, the CITY determined a City of Fort Worth, Texas Attachment A PMO Release Date: 07.23.2012 Page 1 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 stand-alone PFAS treatment process at the North Holly WTP is not desirable and the implementation of a South Holly WTP / North Holly WTP blending scheme is preferred. TCEQ also provided preliminary guidance that GAC for PFAS compound removal will be considered an alternative / innovative technology, thereby requiring demonstration pilot testing per the regulatory rules. Alternatively, an exception can be requested if representative data is provided to demonstrate the GAC process. In addition to regulatory requirements, a pilot program can confirm design data and operational information to support basis of design definition. This scope of work defines the proposed tasks and activities to develop the basis of design and preliminary engineering for integration of a 100-MGD GAC adsorption PFAS treatment process (GAC Process) at the South Holly WTP. The general conceptual configuration for the GAC Process integration is as follows: • Maintain and modify the existing South Holly WTP Filtered Water Transfer Pump Station (FWTSP) to supply the GAC Process. • Implement gravity, deep-bed GAC contactors, with appropriate enclosure for post- biofiltration process water, west of and adjacent to the existing South Holly WTP process structure for removal of the present PFAS compounds currently exceeding defined MCLs (PFOA, PFOS, and PFHxS). • Implement Treated Water Pump Station (TWPS) to lift treated water from downstream of the GAC Process to the existing South Holly WTP Clearwells. • Develop inter-operability plan between North Holly and South Holly facilities to maintain existing operation flexibility and meet finished water disinfection and water quality requirements. • Assess new backwash handling equipment requirements for managing startup and backwashing processes associated with the GAC Process. WORK TO BE PERFORMED This Amendment No. 1— South Holly WTP PFAS Process Preliminary Engineering (Amendment) will be executed, concurrent to the on-going Treatability Study, as defined by the following tasks over a 3-month duration following Notice-to-Proceed. Task 1. Project Management Task 2. Site Investigations Task 3. Process Integration Evaluations Task 4. Process Design Definition Task 5. Regulatory and Funding Coordination Task 6. Implementation Strategy Task 7. Prelimina Engineering Report i �l�s ��o�St�� �piiQn�e�ie� Task 8 excluded from CITY approved scope and fee, as directed per email from Chris Harder on May 14, 2024 For COFW For BC V� r� GL� Ivl K City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 2 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 Task-specific activities, associated assumptions and work products, and defined Amendment deliverables are described in the following paragraphs. Overall Amendment assumptions are summarized at the end of this scope of work. Based on the regulatory deadlines established by the Final PFAS National Primary Drinking Water Regulation (April 26, 2024), the CITY's stated timeline goal for implementation and startup of the GAC Process is April 27, 2027, which aligns with EPA-defined timeline for CITY initiation of PFAS consumer confidence reporting. The EPA defined deadline for MCL compliance is April 27, 2029. In effort to support project development aligned with the CITY's stated goal, the schedule for completion of the preliminary engineering efforts, exclusive of Task 8, defined in this scope of work is as follows: • Preliminary Engineering June 2024 — September 2024 The schedule for design and implementation of GAC Process will be based upon evaluations associated with this scope of work and will be further defined as part of this preliminary engineering effort as defined in the following tasks. TASK 1. Project Management. Supplementary to Project Management efforts defined as part of the Treatment Study, ENGINEER will perform project management duties respective to this Amendment to manage change, communicate effectively, coordinate internally and externally as needed, and proactively address issues with the CITY's Project Manager and others as necessary to make progress on the work. The ENGINEER will perform the following tasks: 1.1. Project Management and Reporting • Lead, manage, and direct team activities. • Task and allocate team resources. • Communicate internally among team members. • Implement ENGINEER's quality assurance and quality control practices in performance of the defined scope of services. • Advise the CITY when the established project expectations cannot be met or when the engineering fee will increase as a change directive from the CITY for the scope of desired modifications. • Prepare and submit invoices monthly with progress reports (up to 3 reports) in the format requested by the CITY. • Integrate Amendment activities into an overall Project Schedule, inclusive of the Treatability Study, and provide updates, (one per progress report) as required per Attachment D of the Standard Agreement and according to the City of Fort Worth's Schedule Guidance Document. • Complete monthly M/WBE Report Form (up to 3 reports). City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 3 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 • Update ENGINEER's internal project management plan and quality management plan to guide the project team in execution of the project scope. 1.2 Project Meetings • Amendment Kickoff Meeting - The Amendment kickoff meeting with CITY staff will be conducted concurrent with the Task 3.1 Workshop No. 1 to confirm and clarify scope, understand CITY objectives, and ensure that CITY needs and requirements are met. Project Meetings - Supplemental to the bi-weekly meetings defined by the Treatability Study, and considerate of the expedited schedule to complete the scope defined herein, ENGINEER will conduct additional weekly meetings to provide the CITY's design project manager with Amendment status updates and provide a 3-week look ahead of Amendment activities. Meetings are assumed as one-hour duration, exclusive of ENGINEER's preparation and documentation efforts, and will include up to two of the ENGINEER's team members, inclusive of the project manager, their surrogate, and/or project task leader(s). A total of 12 additional meetings are assumed for the Amendment duration. • Task-specific meetings, briefings, and workshops are defined as part of the individual tasks. Task Assumptions: • Project meetings will be conducted virtually. Task Work Products: • Baseline amendment schedule. • Monthly invoices, progress reports and schedule updates. • Monthly M/WBE Report Form and Final Summary Payment Report Form. • Meeting summaries with action item and decision logs. TASK 2. Site Investigations ENGINEER will perform site investigations consisting of site topographical survey, subsurface utility investigation and geotechnical investigation. The ENGINEER's design team will conduct general site/facility walk-throughs to verify existing site conditions respective to available record data provided by the CITY and to develop engineering design information relative to the planned process facilities and associated infrastructure. 2.1. Site Topographical Survey ENGINEER will perform site survey (- 19 acres) generally defined as the South Holly WTP site, exclusive of the pre-treatment structure, and the North Holly WTP Clearwell No. 5 area for the following purposes: City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 4 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 • Site topographical characterization with established project controls and benchmarks. • Horizontal and vertical location of one call and other physically marked utilities, observable surface utilities and features, and horizontal and vertical locations of geotechnical borings. • Category 1 B Boundary Survey inclusive of existing easements. • Identification and characterization of geotechnical borings and subsurface utility locates as defined herein Task 2. A site visit report will be developed to document execution of work and note observations and findings supplementary to collected survey data. The site survey information will be utilized for site/civil design efforts. Deliverables: • None 2.2 Subsurface Utility Investigation ENGINEER will perform a Level A or Level B subsurface utility investigation, inclusive of potholing and survey, to confirm locations and elevations of existing below grade utilities for which design modifications are defined. A maximum of 24 potholes with an average depth of 10-ft are assumed. A site visit report will be developed to document execution of work and note observations and findings supplementary to collected survey data. The subsurface utility investigation information will be utilized for the Amendment site/civil design efforts. Deliverables: • None 2.3 Geotechnical Investigation and Engineering Report ENGINEER will perform a geotechnical investigation to confirm existing subsurface conditions for definition of geotechnical and structural foundation design requirements. A two-phase approach for geotechnical investigation and development of engineering recommendations relative to the proposed facilities and site improvements will be conducted, as follows. Phase 1— Geotechnical Investigation: Phase 1 will involve initial characterization of the site subsurface conditions based on a preliminary site facility layout concept defined from the EMERGING CONTAMINANTS — PFAS TREATABILITY STUDY for proposed structures and utilities. This work is assumed to include: • Drilling of up to five (5) geotechnical borings advanced to depths up to 50 feet below grade. City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 5 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 • Geotechnical laboratory analyses, including soil and rock classification, strength, and corrosion properties. • Install and monitoring up to two (2) piezometers to permit continual monitoring of existing subsurface groundwater conditions. • Preliminary geotechnical calculations and analyses to evaluate the existing subsurface conditions as they relate to the proposed improvements. • Preliminary recommendations for foundation design and anticipated construction considerations for the proposed improvements based on the project understanding at that time. • Development of a draft geotechnical report to summarize the Phase 1 subsurface investigation, geotechnical laboratory test results, analyses performed and baseline design criteria for the facility construction. The draft geotechnical report will be issued as an appendix to the Task 7, Preliminary Engineering Report. Deliverables: • Draft Geotechnical Report ENGINEER will perform an additional geotechnical investigation and engineering evaluation relative to the defined preliminary engineering process areas. The investigation will complete the two-phased approach for development of geotechnical engineering recommendations. Phase 2— Desian Verification: Phase 2 will involve execution of supplementary investigation and laboratory analyses consistent with American Concrete Institute (ACI) and International Building Code requirements, where a specific number of geotechnical test borings are recommended based on structure's extent and size, prior to final foundation and structural design. Based on the confirmed, final locations and sizes of the proposed facility structures and infrastructure, ENGINEER will conduct a supplemental geotechnical subsurface investigation (borings and laboratory analyses) utilizing the project information at that time. ENGINEER will develop an overall site visit report associated with the Phase 2 investigation to summarize the daily field activities. ENGINEER will update the preliminary geotechnical analyses and prepare a Final Geotechnical Engineering Report for the Project. The report will provide final geotechnical recommendations for foundation design of new infrastructure design, and general construction considerations consisting of excavation protection, dewatering, backfill and testing requirements. It is assumed that up to six (6) additional geotechnical test borings to depths up to 50 feet will be completed as part of the supplemental Phase 2 investigation. Deliverables: • Final Geotechnical Report City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 6 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 2.4 Site Visits • ENGINEER will perform site visits to confirm existing facility and infrastructure conditions relative to available record data provided by the CITY. • ENGINEER will develop a project-specific field work safety plan applicable to the work described herein as to be conducted by their personnel and respective to the CITY's site-specific facility safety plans. • Prior to conducting site visits to the CITY's facilities, the ENGINEER or any of its sub-consultants will pre-schedule with the CITY's designated representative and provide notification prior to arrival on-site. • ENGINEER will have up to three persons visiting the Project facilities for four ,2- hour site visits exclusive of travel and preparation time. A site visit summary will be prepared for each site visit to document discussions and decisions confirmed during each visit. ENGINEER's site visit objectives will generally include: • Tour each facility with plant operations and maintenance staff to confirm facility conditions and infrastructure. • Review treatment operations with plant operations to confirm seasonal operations, treatment tendencies, and planned facility work that may affect the Project. Deliverables: • None Task Assumptions • CITY will advise of facility-specific safety plans upon request to enable ENGINEER completion of their field safety plans. • Background checks or other third-party verification of ENGINEER's staff prior to site visits will not be required. • CITY will respond to data requests with complete information within one week from request submission. • CITY will provide utility locates for on-site utilities not marked by Texas One-Call. • Subsurface utility locates will be limited to the areas of interest and will rely on existing record drawings and other client data to assist with location identification. • CITY will make available senior operations and maintenance personnel for key relative areas for questions, general input regarding the facility condition and known issues on the day of the site visits. If needed, CITY will provide qualified staff as escort for site visits and as necessary to de-energize or place equipment and spaces in a safe work condition for ENGINEER observation and evaluation. Task Work Products • Site Visit Notes City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 7 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 TASK 3. Process Integration Evaluations. Integration of the proposed GAC Process within the existing South Holle WTP facility requires examination of the existing post-biofiltration treatment operations and infrastructure and inter-operations between the North Holly and South Holly facilities. The primary objectives of the integration are to enable CITY compliance with the defined PFAS MCLs, produce a finished water quality at minimum equivalent to existing facility performance, and maintain operational flexibility between the North Holly and South Holly WTP facilities. In support of this effort, the ENGINEER will further define the GAC Process design and evaluate considerations for facility integration as described in the following tasks. 3.1. Level-of-Service (LOS) Considerations and Facility Operational Scenarios Definition of LOS considerations for the North Holly and South Holly WTP facility operational scenarios as required to evaluate process integration. • ENGINEER will define and document LOS objectives based on CITY feedback. LOS considerations will include review and documentation of the following: o PFAS compound(s) governing treatment o Compliance goal(s) and process monitoring o Water production requirements and entry points to the distribution system (EPTDS). o Define North Holly and South Holly WTP operational requirements (seasonal water production) and estimated blending flow ratios. ENGINEER will develop process flow diagrams, inclusive of the GAC Process, to define facility operational scenarios relative to the North Holly and South Holly WTP facilities and the respective EPTDS. Based on discussions with CITY staff, it is understood that the following operational scenarios must be considered in development and integration of the GAC Process with the North Holly and South Holly WTP facilities. Scenario Water Production Distribution Pumping (EPTDS) No. 1 North Holly and South Holly North Holly and South Holly 2 North Holly and South Holly South Holly 3 North Holly and South Holly North Holly 4 South Holly North Holly and/or South Holly 5 North Holly North Holly and/or South Holly • ENGINEER will conduct Workshop No. 1 to serve as the Amendment Kick-off Meeting and with the objective to confirm with the CITY definition of LOS considerations and operational scenarios, including plant specific water production requirements that affect development of the basis of design definition (design and operation) and progression of the Project development. City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 8 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 • Workshop is assumed as 3-hour duration, exclusive of ENGINEER's preparation and documentation efforts, and will include up to four of the ENGINEER's team members, inclusive of the project manager and task leader(s). • ENGINEER will document CITY comments and design decisions during the workshop and compile in a meeting summary for Project record. 3.2 Hydraulics Implementation of the GAC Process integral to the existing South Holly WTP process hydraulic grade line requires review of existing facility hydraulics, intermediate FWTPS capacity and wetwell configuration, and the estimation of the GAC Process hydraulic requirements. Additionally, hydraulic considerations to permit interoperability between the North Holly and South Holly WTP facilities must be evaluated. ENGINEER will perform process hydraulic evaluations for the following: • Define GAC Process hydraulic requirements. • Review existing FWTPS pump performance capacity curves and operational ranges. • Evaluate existing FWTPS wetwell hydraulics relative to Hydraulic Institute (HI) standards. • Define operational requirements and select pumps for the TWPS for GAC Process implementation and integration within the existing South Holly hydraulic gradeline. • Develop the interoperability blending approach and preliminary hydraulic profiles for the Task 3.1 operational scenarios from the GAC Process to the respective North Holly and South Holly HSPS's. 3.3 CT Strategy and Chemical Applications ENGINEER will review existing North Holly and South Holly WTP post-filter primary disinfection strategies to identify recommended modifications for integration of the GAC Process relative to Task 3.1. ENGINEER will provide recommendations for adjustment of post-biofiltration disinfection scheme and pH adjustment chemical application points based on current North Holly and South Holly operational practices. Further evaluation for modification of chemical feed requirements may occur as part the pilot study identified in the Additional Services Scope of Work included herein. 3.4 Backwash and Washwater System Operations The GAC Process will require water backwash facilities and systems similar to the existing South Holly WTP biofiltration process, however backwashing of the GAC contactors will be much less frequent. The ENGINEER will evaluate the existing South Holly WTP backwash water supply and washwater management facilities to determine if new facilities are required for the GAC Process. • ENGINEER will estimate backwash requirements (flow and cumulative volume) for the PFAS GAC Process inclusive of initial installation and normal operations. City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 9 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 • ENGINEER will review historical operations and hydraulics of the South Holly WTP biofiltration backwash washwater recovery systems to verify system capacities and possible use with the PFAS GAC Process. • ENGINEER will provide recommendations (use of existing systems and/or construction of new facilities) for backwash water supply and washwater systems for the GAC Process and define sizing for new backwash supply and washwater management infrastructure, if recommended. • Develop initial process flow diagrams for the existing backwash/washwater systems as well as the proposed systems to support the GAC Process. 3.5 Electrical Power Evaluation ENGINEER will evaluate electrical primary power supply and distribution requirements for the proposed facility modifications and define infrastructure/facilities required to support installation inclusive of the following activities: • Develop overall load-list for the proposed facilities. • Evaluate existing primary power supply options with consideration of necessary redundancy measures and integration with planned emergency power systems. • Define site requirements for primary power supply (transformers, switches, etc). • Develop conceptual layout for PFAS treatment facility electrical equipment. 3.6 SCADA Integration ENGINEER will evaluate requirements to integrate the proposed GAC Process systems with the existing South Holly WTP network. • Define local control network features and equipment. • Develop network diagram. 3.7 GAC Process Phasing Integration of the proposed GAC Process facilities and infrastructure will require consideration of existing facility operations and system criticality. Relative to the scenarios defined in Task 3.1 and the evaluations from Tasks 3.2 — 3.6, ENGINEER will define critical tie-ins to evaluate anticipated operational interruptions. This information will inform project planning efforts defined in Task 6. • ENGINEER will develop a preliminary description of the proposed work associated with defined points of connection between existing facilities and the proposed GAC Process. • ENGINEER will confirm with the City criticality of operations associated with identified points of connection to define acceptable seasonal conditions and/or durations to permit shutdowns or process operational interruptions. • ENGINEER will conduct Workshop No. 2 to review efforts related to Task 3.2 through Task 3.7 with the objective to confirm with the CITY the basis of design for the individual Tasks. Information and illustrations (work products) associated City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 10 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 with the Task efforts will be reviewed during the Workshop but not otherwise distributed. Work products will be integrated into the preliminary engineering report defined in Task 7. • Workshop is assumed as 3-hour duration, exclusive of ENGINEER's preparation and documentation efforts, and will include up to four of the ENGINEER's team members, inclusive of the project manager and task leader(s). • ENGINEER will document CITY comments and design decisions during the workshop and compile in a meeting summary for Project record. Task Assumptions • North Holly WTP transfers to/from the South Holly WTP must be maintained equivalent to the existing conditions. This Project will not be specifically developed with the objective to improve or enhance transfer capabilities. • CITY will maintain the existing two points-of-entry into the distribution system from the North Holly and South Holly WTPs high service pump stations. • CITY will provide water production requirements (MGD) for the defined operational scenarios (Task 3.1) based on current forecasts of future system demands and operational requirements. • Pump station wetwell evaluations and wetwell concept designs will be desktop efforts based on geometric standards defined by HI. CFD and physical modeling are excluded. • CITY will provide documentation associated with TCEQ approved CT studies for South Holly and North Holly WTP . • The existing post-biofiltration chemical feed systems may require modification of chemical feed pumps or storage volumes with the addition of the GAC Process. Execution of the pilot study described in the Additional Services Scope of Work is recommended to verify chemical feed modifications. • Definition of the following building systems and elements are excluded from the preliminary engineering: video/surveillance, access systems, telephone paging/PA, fire alarm, and building management systems (e.g., HVAC). It is assumed the CITY will want to mimic existing system configurations consistent with the remainder of the North Holly and South Holly WTP facilities and no evaluation is required. Definition and design of these systems will be determined as part of the design phase. Task Work Products • Evaluation products developed from the defined Tasks and as presented at Workshop No. 1 and No. 2. • Meeting agenda and notes associated with Workshop No. 1 and No. 2 City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 11 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 Task Deliverables • None TASK 4. Process Design Definition ENGINEER will define recommended process infrastructure, facilities and associated governing design criteria for the GAC Process and the integration within the existing North Holly and South Holly WTP facilities and process systems. 4.1. Process Design Criteria • ENGINEER will develop preliminary process design criteria for the primary GAC Process facilities and infrastructure assumed to include the following: • TPS modifications • GAC contactor facilities • Backwash and washwater recovery facilities • Treated Water Pump Station • Disinfection strategy adjustments 4.2 Basis of Design Definition • ENGINEER will develop a Basis of Design memorandum to document the level- of-service objectives, process integration decisions, and process design criteria that will serve as the foundation for the preliminary engineering. • ENGINEER will integrate work products from Task 3 activities and develop preliminary drawings to illustrate the proposed facilities and systems associated with the GAC Process, which will include: • Overall Site and Infrastructure Plan, inclusive GAC Process primary structures, major yard piping, and locations of electrical primary power infrastructure • Operational Scenario Process Flow Diagrams x 5 • Operational Scenario Hydraulic Grade Lines x 5 • FWTPS Modifications Plan and Section • GAC Facility Plan and Sections • TWPS Plan and Section • Backwash Supply Infrastructure Plan and Section • Washwater Recovery Infrastructure Plan and Section • Electrical One-line Diagrams • SCADA Network Diagrams City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 12 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 • Process Instrumentation Diagrams • ENGINEER will conduct Workshop No. 3 to facilitate CITY review of the draft Basis of Design memorandum. CITY comments from the review will be logged and ENGINEER will provide individual responses to each comment. The review log, response comments and description of final resolution will be documented for integration as an Appendix to the preliminary engineering report defined in Task 7. • Workshop is assumed as 3-hour duration, exclusive of ENGINEER's preparation and documentation efforts, and will include up to four of the ENGINEER's team members, inclusive of the project manager and task leader(s). Task Assumptions • ENGINEER will develop the draft Basis of Design memorandum to provide for intermediate review of preliminary engineering development following definition of design criteria and prior to development of the Task 7 preliminary engineering report. • Review comments will not be incorporated into and issued as a final Basis of Design Memorandum. The draft memorandum and comments will be saved for Project record and utilized for development of the draft Preliminary Engineering Report defined in Task 7. Task Work Products • Draft Basis of Design Memorandum • Memorandum comment log Task Deliverables • None TASK 5. Regulatory and Funding Coordination. ENGINEER will monitor and evaluate regulatory (Texas Commission on Environmental Quality, TCEQ) and funding (Texas Water Development Board, TWDB) considerations concurrently with progression of evaluation tasks for consideration in development of the preliminary engineering design and project implementation plan. 5.1. Regulatory Coordination • ENGINEER will maintain contact with TCEQ throughout the Project to monitor progression of future PFAS rule development as applicable to the evaluated treatment processes. • TCEQ rule status and considerations related to implementation of the GAC Process will be documented as part of Task 7. • As part of this scope, 60-hours are assumed and allocated for project manager correspondence with TCEQ for the duration of the Project and inclusive of Project Manager and GAC Process specialist participation in up to two meetings City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 13 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 with TCEQ. Additional allowance of 40 hours are assumed for ENGINEER staff to prepare meeting documentation. 5.2 Funding Consultation • As part of this scope, 16-hours are assumed and allocated for the project manager or the funding specialist to support the CITY with TWDB funding applications the Project. • ENGINEER will summarize primary project materials and equipment for which DWSRF Build America, Buy America Act (BABA) or American Iron and Steel (AIS) will apply. Information will be considered concurrent with Task 6 implementation planning activities. • ENGINEER will assist the CITY with the identification of additional funding opportunities (Federal and State) for consideration in the implementation of the PFAS mitigation strategy as part of subsequent capital projects. A total of 12- hours are allocated for this effort. Task Assumptions • ENGINEER's engagement with TCEQ will only involve verification of PFAS rule development status for identification and definition of regulatory milestones that will affect Project design development and implementation. • ENGINEER assistance to CITY for development and execution of pilot program or exception requests for TCEQ review and approval of the GAC Process are exclusive of this task and are included in Task 8. Pilot Study / Exception of this Scope of Work. It is assumed City authorization of Additional Services will be on a task basis. • CITY will manage and directly coordinate all Project requirements related to their pending status on the TWDB Emerging Contaminants DWSRF Intended Use Plan (IUP) and subsequent application submission. • CITY does not require ENGINEER support in identification of or application for alternative funding programs related to this Project. Task Work Products • TCEQ meeting agenda and presentation slides • TCEQ meeting notes TASK 6. Implementation Strategy. Considerate of the CITY's defined implementation schedule goal and defined project objective for process operations to enable compliance with regulatory limits and deadlines, a Project implementation strategy is required. ENGINEER will evaluate and define critical path tasks and activities for development of a project implementation strategy. The implementation strategy will identify critical project considerations associated with equipment/material procurement, regulatory milestones, permitting, and general constructability. City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 14 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 Regulatory review will consider TCEQ reviews and approval requirements associated with the proposed GAC Process based on their current guidance as described herein. Permitting review will include coordination with local sponsor (Tarrant Regional Water District, TRWD) and U.S. Army Corps of Engineers — Fort Worth District (CESWF) related to the proposed GAC Process design and construction in proximity to the Trinity River levee system. 6.1. Equipment / Material Procurement • ENGINEER will identify major process and facility equipment and materials (process, electrical, structural, HVAC, etc.) and verify estimated lead times for procurement and delivery. • ENGINEER will provide recommendations for pre-procurement/selection of critical path equipment/materials. 6.2 Project Implementation Work Plan • ENGINEER will develop a`top-task' preliminary construction schedule respective to the preceding tasks to identify critical path activities. • ENGINEER will define regulatory (TCEQ), permitting (USACE), and funding and equipment procurement considerations affecting project implementation. • ENGINEER will develop a project implementation work plan to identify overall schedule, critical milestones, and delivery approach. • ENGINEER will identify primary risk considerations that may affect progression of project design and construction. 6.3 Cost Estimating ENGINEER will develop AACE International Recommended Practice No. 18R- 97, Class 3 opinion of probable construction cost (OPCC) for capital elements associated with the defined PFAS treatment facility and infrastructure. Each OPCC developed for this scope of work will include a summary memorandum to define the governing assumptions and limitations including, but not limited to, the general planning purpose of engineer's estimates. Two OPCCs will be developed: o Planning-level update — At the initiation of this scope of work, the ENGINEER will reevaluate prior OPCC based on the overall project concept, exclusive of the Task 6 implementation strategy. o Preliminary engineering — Inclusive of the Task 6 implementation strategy, ENGINEER will develop an OPCC considerate of the proposed procurement strategy and work plan. • ENGINEER will develop an estimate of operational cost (e.g. power, chemical, and/or media replacement and disposal) and perform a life-cycle cost analyses concurrent with the preliminary engineering OPCC. City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 15 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 Task Assumptions • Identification of equipment pre-procurement/selection recommendations excludes development of proposal documents. • Top-task construction schedule will be defined based on overall process areas and identify critical milestones, shut-downs and operational constraints. CITY will provide additional information for other project schedules/activities that may impact implementation planning associated with the North Holly and South Holly WTP facilities. Task Work Products • Project implementation plan • Opinion of probable construction cost TASK 7. Preliminary Engineering Report. ENGINEER will document the collective information, findings, and conclusions from the Amendment tasks within a preliminary engineering report. 7.1. Draft Preliminary Engineering Report (PER) • ENGINEER will develop and submit a draft PER summarizing Project efforts from Task 2 through Task 6 for CITY review and comment, inclusive of capital and life- cycle cost analysis and implementation strategy. 7.2 PER Workshop • ENGINEER will conduct Workshop No. 4 with CITY stakeholders to review findings and recommendations documented in the draft PER. • Meeting is assumed as 4-hour duration, exclusive of ENGINEER's preparation and documentation efforts, and will include up to four of the ENGINEER's team members, inclusive of the project manager and task leader(s). • ENGINEER will document CITY comments during the workshop, and in combination with compiled draft PER review comments provided by the CITY, ENGINEER will log and provide individual responses to each comment, addressing each as required with the preparation of the final PER. 7.3 Final Preliminary Engineering Report • ENGINEER will finalize the PER based on CITY comments and submit it for Project record. Task Assumptions CITY will provide ENGINEER with compiled review comments regarding the draft PER in advance of Workshop No. 4 to facilitate discussion regarding the draft document. City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 16 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 Task Work Products • Workshop No. 4- PowerPoint slides and figures and meeting notes. • PER review log and ENGINEER responses. Task Deliverables • Preliminary Engineering Report — Draft • Preliminary Engineering Report — Final \ aal il e �1Qn i I n a �e i� � e �I , `� rwnt�.snra��ui�ne�r.n�ni teQ to th Task 8 excluded from CITY �' m e� n approved scope and fee, as ;n e te u it directed per email from Chris �n s ib r Harder on May 14, 2024 � Ptki c s' e tioiv, o�the�f" a�1c 6�lm�leri�en�a�ti , n � arid c orl ni' n n i ci � n fu'f�ill ti '� �. � City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 17 of 22 For COFW For BC "� WW�i MK n ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 ' I a si wi fin' 'o f e p v I a n, q' n n la r, o r,� �r up ly tc., as e ire f e op ra ' n. I ' I p vi e ; 'al an in ta ti - ` - - .-- .-- ' -- -` -: �' nn cti in ue t, lu t, Task 8 excluded from CITY a e t fr approved scope and fee, as e'ce T i r i �ri s ' s Ila c directed per email from Chris 'I E w d e Harder on May 14, 2024 e i e e i te e op ra ' n a ce n co di � n fo h il u�t, si e p so e n c ta s, � ul o e ti s, h i I qu' e n a d t q li te in A r o' e to e I f re ie a c n ri t im le en ti e la �e 'n 'z b e o CI Y m e s d ub it d th fo e' I E w p o ite t e vi d' i d i d tr u e o i en ' y p�a.�a e t ro o e il s d I-s I y e a f en t�s • G E 'll II t, oc �i si fo ev u'o f e ti s ati a ' s e i e e th e c�on la a e e. a il s dy ep ,� c i i le e ati , ill e v op c • C Y e s di t r o is e an s m' te to ( • E G E 'll o in e'th � t ' ot ro c a fi I q r t c:i a n iz o t is� b c fir e o ig wi r u �ar rm� tm'll tio e tec tof' I � � �� �t o a iTem t m r si q e nrs` k o a d ve f fo , a ' i 'ze n ti I Ili ' Is a ra �as� oc te w t p� ot, � n�1vz d n n m , v i n, va e nt g e ct ai o u r \ n I io 0 0 o s i�g ' a c s ra s r' c r o te ro s . tr al a wi e v' a t fu is a i ta a\ili ' s w t p t u m t t in For COFW For BC � � Ivl K City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 18 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 Iat U .� \• Fi � \ i i��re��ni rir1� c a'liti s t�.0 � da c le io a n a \ � Task 8 excluded from CITY approved scope and fee, as directed per email from Chris Harder on May 14, 2024 't�a re i n C n T Q ev w o e ts � R al� \ \ \ SCOPE OF WORK ASSUMPTIONS For COFW For BC In the development of this scope of work and associated task budgets defin� � "Attachment B", ENGINEER has made the following governing assumptions: • All in-person workshops and meetings will be conducted at the Holly Water Treatment Plant complex, unless otherwise specifically noted. • Deliverables (draft and final) will be submitted in electronic/digital (PDF) format for CITY review and record. Paper submittals will not be required for any deliverables. • CITY will complete document reviews within five business days of submission. Review comments will be compiled/logged within a single (PDF) document or compiled into a spreadsheet file (Excel) and returned to the ENGINEER for documentation of responses and tracking of completion. • ENGINEER will document meeting/workshop notes, Project action items, and decisions for Project records for identified meetings and workshops. Notes will be summaries of ineetings/workshops and key points and shall not be considered verbatim documentation of ineeting discussions. • ENGINEER provision of forensic engineering or retained expert services is excluded from this scope of work. In the event ENGINEER is subsequently requested by CITY or others to provide documents or testimony regarding this scope of work, those additional services will be negotiated via change management pursuant to the rates and costs reflected in this Agreement, as may be amended in the future. • The GAC Process basis of design and preliminary engineering will be developed for removal of the PFAS compounds confirmed as present in the North and South Holly WTP waters and currently exceeding defined MCLs (PFOA, PFOS, and PFHxS). Future modifications to regulatory requirements and/or detected PFAS compounds may not be fully addressed by the GAC Process and further process evaluation and testing will be required to determine required process modifications. • Analyses, testing, and other requests that are not specifically included within this scope will be considered additional services. • ENGINEER coordination with local sponsor (Tarrant Regional Water District, TRWD) and U.S. Army Corps of Engineers — Fort Worth District (CESWF) related to the proposed GAC Process design and construction in proximity to the Trinity River levee system will be limited to verification of construction limits, zones of impacts and City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 19 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 definition of requirements for design review and permitting process, if applicable. Engineering analysis and document production associated with development and submission of permitting applications are specifically excluded. Project Funding: • CITY will apply for Texas Water Development Board Emerging Contaminant DWSRF funding for this project. It is assumed the applicable BABA/AIS materials and equipment constraints associated with the EC-DWSRF program must be considered for project implementation. Assistance with development and submission of exemptions to DWSRF requirements are excluded from this scope. • Environmental investigations or reviews required by the CITY's selected funding sources, beyond those previously conducted by the CITY, will not be required for the Project. Pump Station Hydraulics: • Computational Fluid Dynamic (CFD) and physical modeling of existing piping or pump wet-well systems is excluded unless otherwise specifically defined in this scope. • Pump modifications may be required to accommodate integration of the GAC adsorption treatment process and ENGINEER may recommend design phase modeling to verify the FWTPS hydraulic design for the modified conditions. Preliminary Engineering Assumptions: • Evaluation of process concepts will proceed as part of the PFAS Treatability Study as scoped. For development of PER, it is assumed findings from completed Treatability Study will not impact GAC Process definition. GAC Process design is limited to the currently measured PFAS compounds and concentrations found in the CITY's water supply system as defined herein and evaluated as part of the PFAS Treatability Study with respect to the current EPA MCLs defined for those compounds. Detection of new PFAS compounds and/or the addition or modification of EPA compliance requirements are considered out of the scope of this Project and additional evaluation of the GAC Process suitability for those compounds would require additional investigation. • Unless otherwise recommended as part of the preliminary engineering, the project will be designed, advertised, and constructed as a design-bid-build project. Requirements for alternative procurement to meet schedule requirements will be confirmed as part of the preliminary engineering and additional engineering services to accommodate alternative procurement will be resolved via respective change management. • Pre-qualification of Contractors or vendors is excluded. City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 20 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 • Design will be developed in accordance with TCEQ regulations, as applicable to the project scope and facility performance objectives. Analyses, testing, and other requests by the regulatory agency that are not specifically included within this scope will be considered additional services. • Evaluation of existing site facilities, related to assessment, abatement, and/or mitigation for lead paint and asbestos, are excluded from this scope of services. • Site investigations and activities during site visits do not include formal condition assessments of assets and will be limited to the identification of apparent issues. If conditions are identified that warrant additional investigation or a condition assessment, ENGINEER will suggest the additional services. • Site civil yard piping design will only be within the existing site property limits. • Cathodic protection (CP) systems associated with existing facility piping are assumed to be isolated from the Project yard piping system and no CP evaluations will be required as part of this Project. • Applications Engineering Services (AES), inclusive of CITY SCADA and HMI updates, will be developed and performed by a General Contractor based on the Engineer's design and specifications. • Project will not modify the existing operations facilities and all operator supervisory/control interface capabilities (remote/local) will be maintained as is. • Preliminary GAC Process model for project design will be developed using REVIT. Site / Civil model will be developed using AutoCAD Civil 3D. The following items are excluded from the Amendment and will not be examined nor evaluated, unless otherwise explicitly noted and described in this Scope of Work. • Facility Security • Stormwater runoff and management • Software licenses or hardware • PLC or HMI programming • On-site cathodic protection system • Fire suppression systems • Coordination with Local, State, and Federal agencies, governing bodies, cities, etc. unless otherwise noted in this Scope of Services • Site retaining walls, landscape, irrigation, relative to potential CITY codes Submittal Documents and Review Procedures. City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 21 of 22 ATTACHMENTA PROFESSIONAL ENGINEEING SERVICES FOR AMENDMENT N0. 1- SHWTP PFAS PROCESS PRELIMINARY ENGINEERING CITY PROJECT NO.: 104942 • Milestone submittals will be delivered electronically in PDF format unless otherwise stated herein. No paper copies will be provided. Electronic copies of drawings will be 22"x34". • CITY will develop, collect, and summarize review comments into a single PDF document and/or Excel spreadsheet, allowing for electronic summary and extraction by the ENGINEER. • ENGINEER will review CITY comments and provide a summary of responses to each comment prior to the subsequent submittal milestone. Project Delivery Approach and Schedule: • The CITY's planned project delivery approach for design and construction will be developed for advertisement and bidding as a single contract. • Alternative approaches for equipment and materials (pre-purchase, pre-selection, etc) will be evaluated and defined as part of Task 6. Development of pre-selection or pre-purchase documents are excluded from this scope of work. • Project schedule and work plan for subsequent design and construction of the GAC Process facility will be defined as part of the Task 6 activities with consideration of the CITY's stated goal. Completion of the PER within the defined schedule does not otherwise guarantee the schedule for design, construction, and start-up of the GAC Process. End of `Attachment A' City of Fort Worth, Texas Attachment A PMO Release Date: 08.1.2014 Page 22 of 22 9$ a 3 y � n � 2 3 � ➢ n 9 3 3 z a c o o � 5: A � 3 O � ° 3 � � � m N 3 3 m EA � o w�' � 3m 3q � m � 5 3 H 3�� '-�°. 3 � 3 3 ,� A O y 0 3 � A $ � =� p n V 3 � q � � - � G a � o _ � a p � w D m � � 6 S D q � 3 3 m � N � y � m w _ �, �'-n r � � s �� �o� z �c �c o ^n, � � � � � o -� Z C `f I"� S � � = T � O O N � � � t � 3 V � D � N t � v o m n �c m m � � v� � m ID 3 3 � 3 111 � m � oa 3 N N 3 OQ m � � 9' m m �' � T o � � m v m < m 0 � � m � �'- _� =m-o N w � � a a � � m � d x O cD � n �p C N 3 � � •C N, � p_ — N -.. A � Q O iv3�3 0 N C% �D �= a�w� � N j � C) MK O T � �O � C� City of Fort Worth, Mayor and Texas Council Communication DATE: 06/11/24 M8�C FILE NUMBER: M&C 24-0513 LOG NAME: 60PFASTREATMENTSTUDYA1-BROWN AND CALWELL SUBJECT (ALL) Authorize Execution of Amendment No. 1 to an Engineering Agreement with Brown and Caldwell in the Amount of $1,797,323.00, for a Revised Contract Amount of $3,101,626.00, for the Emerging Contaminants Per- and Polyfluoroalkyl Substances Treatment Study Project and Adopt Appropriation Ordinance to Effect a Portion of Water's Contribution to Fiscal Years 2024-2028 Capital Improvement Program RECOMMENDATION: It is recommended that the City Council: 1. Authorize execution of Amendment No. 1 to City Secretary Contract Number 60733, an engineering agreement with Brown and Caldwell, in the amount of $1,797,323.00 for a revised contract amount of $3,101,626.00 for the Emerging Contaminants Per- and Polyfluoroalkyl Substances Treatment Study project; and 2. Adopt the attached appropriation ordinance increasing estimated receipts and appropriations in the Water and Sewer Capital Projects Fund in the amount of $1,797,323.00, from available PayGo residuals within the Water and Sewer Capital Projects Fund, for the purpose of funding the Emerging Contaminants Per- and Polyfluoroalkyl Substances Treatment Study project (City Project No. 104942) to effect a portion of Water's Contribution to the Fiscal Years 2024-2028 Capital Improvement Program. DISCUSSION: The United States Environmental Protection Agency's (USEPA) ruling for regulating Maximum Contaminant Levels and Hazard Index for Per- and Polyfluoroalkyl Substances (PFAS) in drinking water has prompted the Water Department to formulate plans to monitor potential sources and reduce PFAS levels through source identification and treatment (if necessary). Prior to the adoption of USEPA's final rules, the Water Department initiated testing of multiple sources including raw water, sewer, and drinking water to better understand the full water life-cycle challenge in removing these contaminants. Through early testing, staff determined that additional advanced treatment may be needed at the drinking water treatment plants in order to comply with the proposed PFAS regulations. On December 12, 2023 Mayor & Council Communication (M&C 23-1075), the City Council authorized execution of an engineering agreement with Brown and Caldwell in the amount of $1,304,303.00 to conduct systematic sampling and testing of the water through various phases of the treatment process to help determine the optimal treatment strategy for reliable and economical removal of PFAS. Sampling has been conducted from all existing raw water sources and from various stages at all five City water treatment plants. The results will affect all existing and future customers. Amendment No. 1 will provide for preliminary engineering design for PFAS treatment at the South Holly Water Treatment Plant, consisting of an activated carbon contactor, transfer pump station, and interconnected piping with the North Holly Water Treatment Plant. This project is necessary to treat raw water originating from Lake Worth to meet drinking water regulatory standards recently approved by the United States Environmental Protection agency for PFAS compounds. It is the practice of the Water Department to appropriate its CIP plan throughout the Fiscal Year (FY), instead of within the annual budget ordinance, as projects commence, additional funding needs are identified, and to comply with bond covenants. The actions in the M&C will appropriate funds in support of the Water's portion of the City of Fort Worth's Fiscal Years 2024-2028 Capital Improvement Program, as follows: Capital Revised Project FY2024 CIP Budget Change Fund Name Appropriations Authority �Increase/Decrease) FY2024 Name Budget Fund 104942 56002 Water Emerg. & Cont. $0.00 This M&C $1,797,323.00 $1,797,323.00 Sewer PFAS Capital Trtmnt Project Study Funding is avaliable in the Unspecified-All Funds project within the Water & Sewer Capital Projects Fund for the purpose of funding the Emerging Contaminants PFAS Treatment Study project. Funding for the Emerging Contaminants PFAS Treatment Study project is depicted below: Fund Existing Additional project Total* Appropriations Appropriations Fund 56002 — W&S Capital $1,304,303.00 $1,797,323.00 $3,101,626.00 Project Project Total $1,304,303.00 $1,797,323.00 $3,101,626.00 *Numbers rounded for presentation purposes. BUSINESS EQUITY OFFICE: Brown and Caldwell agrees to maintain its initial M/WBE commitment of 14% that it made on the original agreement and extend and maintain that same M/WBE commitment of 14% to this first amendment. Therefore, Brown and Caldwell remains in compliance with the City's M/WBE Ordinance and attests to its commitment by its signature on the Acceptance of Previous M/WBE Commitment form executed by an authorized representative of its company. This project is located in ALL COUNCIL DISTRICTS. FISCAL INFORMATION / CERTIFICATION: The Director of Finance certifies that funds are currently available in the Unspecified-All Funds project within the W&S Capital Projects Fund and upon the approval of the above recommendations and adoption of the attached appropriation ordinance, funds will be available in the W&S Capital Projects Fund for the Emerg. Cont. PFAS Trtmnt. Study project to support the above recommendations and execution of the engineering agreement. Prior to any expenditure being incurred, the Water Department has the responsibility of verifying the availability of funds. Submitted for City Manager's Office bk Fernando Costa 6122 Originating Business Unit Head: Chris Harder 5020 Additional Information Contact: Matt Kusnir 8219 Julie Perez 8226