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HomeMy WebLinkAbout09 CIP NO. 5025 07-07-03AGENDA REPORT Agenda Item Reviewed: City Manager Finance Director q MEETING DATE: JULY 7, 2003 TO' FROM' SUBJECT: WILLIAM A. HUSTON, CITY MANAGER PUBLIC WORKS DEPARTMENTIENGINEERING DIVISION APPROVAL OF CONSULTANT SERVICES AGREEMENT FOR TUSTIN LEGACY RUN-OFF MANAGEMENT PLAN/ENGINEERING STUDY (CIP NO. 5025) SUMMARY The approval of a Consultant Services Agreement with RBF, Inc. will provide the engineering services for the preparation of a Run-off Management Plan/Engineering Study at Tustin Legacy. The Run-off Management Plan/Engineering Study will be prepared in accordance with the Specific Plan/EIR and the Cooperative Agreement D02-119 between the City of Tustin and the Orange County Flood Control District. RECOMMENDATION It is recommended that the City Council approve the Consultant Services Agreement with RBF, Inc., for the Run-off Management Plan/Engineering Study in the amount of $239,600.00, and authorize the Mayor and City Clerk to execute the Consultant Services Agreement on behalf of the City, subject to minor modifications and approval of the Assistant City Manager and City Attorney. FISCAL IMPACT The Consultant Services Agreement is task oriented and RBF, Inc., will invoice for actual services performed. The total cost of services to be performed for this project is $239,600.00. These services will be performed during FY 03/04. The FY 03/04 Capital Improvement Program Budget for the Tustin Legacy Run-off Management Plan/Engineering Study has adequate funds for this work. BACKGROUND Proposals to provide the engineering services for this project were requested from several firms and three (3) proposals were received. Based upon review of the proposals, familiarity with the project area and past performance on similar projects, it is recommended that RBF, Inc. provide the engineering design services required of this project. The fee for this project has been deemed fair and reasonable. Approval of Consultant Plan/Engineering Study July 7, 2003 Page 2 Services Agreement for Tustin Legacy Run-off Management The Run-off Management Plan/Engineering Study is necessary to assess the drainage impacts due to ultimate development of the Tustin Legacy property. The Run-off Management Plan/Engineering Study will incorporate standard Orange County Flood Control District hydrology practices to evaluate the storm drain, channel, and basin improvements necessary to convey design discharges due to ultimate development. Water Quality concerns will be identified and Best Management Practices will be incorporated to ensure compliance with the Total Maximum Daily Loads (TMDLs) for the San Diego Creek Watershed. The Run-off Management Plan/Engineering Study includes the preparation of a jurisdictional report that identifies the "waters of the United States" including wetlands. Also, a fee allocation and benefit determination will be prepared to assist in the apportionment of drainage facility improvement costs to the various Tustin Legacy planning areas. A Consultant Services Agreement with RBF, Inc., for engineering design services for the Run- off Management Plan/Engineering Study (CIP No. 5025) is submitted for Council's consideration. The Run-off Management Plan/Engineering Study will be prepared this calendar year. Christine A.-Shingl-et-on///] '- Assistant City Manager'-" Engineer Tim D Director of Public Works/City Attachment: Consultant Services Agreement Dana 4~'. I~asdan Engineering Services Manager CSA:TDS:DRK:ccg:Approval CSA Tustin Legacy run off mgmt plan CONSULTANT SERVICES AGREEMENT THIS AGREEMENT FOR CONSULTANT SERVICES, is made and entered into this__ day of ,20__, by and between the CITY OF TUSTIN, a municipal corporation, hereinafter referred to as "City", and RBF Consulting a California corporation, hereinafter referred to as "Consultant". RECITALS WHEREAS, City requires the services of a consultant to furnish the necessary engineering services to include Research and Investigation; Master Plan Development and Draft and Final Report Preparation for the Tustin Legacy Run-off Management Plan/Engineering Study hereinafter referred to as "Project"; and WHEREAS, Consultant has submitted to City a proposal dated June 30, 2003 a copy of which is attached hereto, marked as Exhibit "A" and is by this reference incorporated into this Agreement; and WHEREAS, Consultant is qualified to provide the necessary services for the Project and desires to provide said services; and WHEREAS, City desires to retain the services of Consultant for said Project. NOW, THEREFORE, for the consideration and upon the terms and conditions hereinafter set forth, the parties agree as follows: AGREEMENT Section 1: Scope of Consultant's Services. Consultant shall perform all work necessary to complete in a manner satisfactory to City, the services set forth in Exhibit "A". Section 2: Order of Precedence. In the event of a conflict between or among any of the documents comprising this Agreement, the following order of precedence shall govern the provision in question: 1. This Agreement 2. Consultant's Proposal (Exhibit"A") .]. Section 3: Time for Completion. The time for completion of the work to be performed by Consultant is an essential condition of this Agreement. Consultant shall prosecute regularly and diligently the work of this Agreement according to reasonable schedules established by the City for various items described and as outlined within Consultant's proposal. Consultant shall not be accountable for delays in the progress of its work caused by any condition beyond its control and without the fault or negligence of Consultant. Delays shall not entitle Consultant to any additional compensation regardless of the party responsible for the delay. Section 4: Compensation. A, The compensation to be paid under this Agreement shall be as set forth in Exhibit "A", not to exceed a total cost of $239,600.00. B, Consultant shall submit detailed invoices, based upon the actual work performed accompanied by backup documentation as requested by the City. Co Progress payments for work completed shall be paid by City as the work progresses, within thirty (30) days of the date of Consultant's invoice. Do Consultant shall provide City with a monthly itemization of all work performed, and the fees accrued thereon, in complete and sufficient detail to fully apprise City thereof. Section 5: Independent Contractor. Consultant's relationship to City in the performance of this Agreement is that of an independent contractor. Consultant's personnel performing services under this Agreement shall at all times be under Consultant's exclusive direction and control and shall be employees of Consultant and not employees of City. Consultant shall pay all wages, salaries and other amounts due its employees in connection with this Agreement and shall be responsible for all reports and obligations respecting them, such as social security, income tax withholding, unemployment compensation, workers' compensation and similar matters. Section 6: Indemnification. Consultant agrees to indemnify, defend and hold City, its officers, agents, employees, successors and assigns harmless from any loss, damage, injury, sickness, death, or other claim made by any person and from all costs, expenses and charges including attorney's fees caused by or arising out of Consultant's, its officers', agents', subcontractors', or employees' negligent acts, negligent errors, or negligent omissions or willful misconduct, or conduct for which the law imposes strict liability on Consultant in the performance or failure to perform this Agreement. -2- Section 7: Insurance. A. Consultant shall maintain in full force and effect during the term of this Agreement policies of comprehensive general liability, personal injury and automobile liability insurance with limits of at least $1,000,000 _combined single limit coverage per occurrence. B. Consultant shall maintain in full force and effect during the term of this Agreement a policy of professional liability, insurance coverage with limits of at least $1,000,000 combined single limit coverage per claim or per occurrence. If Consultant provides claims made professional liability insurance, Consultant shall also agree in writing either (1) to purchase tail insurance in the amount required by this Agreement or to cover claims made within five (5) years of the completion of Consultant's service under this Agreement, or (2) to maintain professional liability insurance coverage with the same carrier in the amount required by this Agreement for at least five (5) years after completion of Consultant's services under this Agreement. Consultant shall also provide evidence to the City of the purchase of the required tail insurance or continuation of the professional liability policy by executing the attached Letter Agreement on Consultant's letterhead. Co Consultant shall carry and pay for such compensation insurance as is necessary to fully protect Consultant and its employees under California Worker's Compensation Insurance and Safety Laws, and shall relieve the City from all responsibility under said laws in connection with the performance of this Agreement. D. All insurance required pursuant to this Section shall be issued by a company admitted in the State of California and rated A, VII or better by the latest edition of Best's Key Rating Guide. E. Upon execution of this Agreement, Consultant shall provide to City certificates of insurance on the City's form evidencing the required insurance. If self-insured for worker's compensation, Consultant shall submit to City a copy of its certification of self-insurance issued by the Department of Industrial Relations. Section 8: Termination of Agreement. A. City shall have the right to terminate any or all of the services covered by this Agreement at any time for any reason .by giving written notice to Consultant. Bo Upon termination of this Agreement, Consultant shall be paid for services rendered by the effective date of the termination. C. Upon termination of this Agreement or completion of the Project, all documents relating to the Project shall become the sole property of City. Should City terminate this Agreement pursuant to subparagraph A. of this Section, Consultant shall, within ten (10) business days of receipt of notice of termination, -3- provide City with all documents within Consultant's possession relating to this Agreement and the Project, including but not limited to all completed documents and all drafts of uncompleted documents. Section 9: Notices Any notice allowed or required to be given shall be effective upon personal delivery thereof, or upon depositing thereof in the United States Postal Service, certified mail, return receipt requested, postage prepaid, addressed as follows: To City: City of Tustin Attn.: Director of Public Works/City Engineer 300 Centennial Way Tustin, CA 92780 To Consultant: RBF Consulting Engineers Robert Kallenbauqh, PE 14725 Alton Parkway Irvine, CA 92618-2027 Section 10: Miscellaneous Provisions. Ao Consultant shall proceed immediately and diligently to perform the services provided for in this Agreement upon receipt of notice from City to proceed therewith. B. No part of this Agreement may be assigned by Consultant without the prior written approval of City. C, This Agreement shall extend to and be binding upon and inure to the benefit of heirs, executors, administrators, successors and assigns of the respective parties hereto. Do Consultant shall perform all services required under this Agreement using that degree of care and skill ordinarily exercised under similar conditions in similar localities, and shall be responsible for all errors and omissions for services performed by Consultant under the terms of this Agreement. Eo Consultant certifies that there' shall be no discrimination against any employee who is employed in the work covered by this Agreement, or against any application for such employment, because of race, religion, color, sex or national origin including but not limited to, the following: employment, upgrading, demotion or transfer, recruitment, or recruitment advertising, lay-off or termination, rate of pay or other forms of compensation, and selection for training, including apprenticeship. -4- IN WITNESS WHEREOF, this Agreement was executed by the parties on the day and year first above written. "CITY" CITY OF TUSTIN By Tim D. Serlet, Director of Public Works/City Engineer ATTEST: Pamela Stoker, City Clerk APPROVED AS TO FORM: Lois E. Jeffrey, City Attorney "CONSULTANT" RBF CONSULTING By Robert Kallenbaugh, PE, Principal -5- CiW of Tustin EXHIBIT "A" SCOPE OF ENGZNEERING SERVICES Objective: RBF Consulting (Consultant) has been requested to develop a Scope of Services and Fee for preparation of a comprehensive runoff management plan (RMP) for the Tustin Air Base in conformance with Section 5.4, "Runoff Management Plan/Engineering Studies" of Cooperative Agreement D02-119 between the City of Tustin and the Orange County Flood Control District and The County of Orange. The RMP will be developed in accordance with the requirements of Section 5.4, based on the land use plan in the Specific Plan/EIR previously prepared for the base reuse. PHASE ! - Research & Investigation Task 1.1 Research And Investigation Objective: To collect background data and information regarding as-built plans and drainage studies for existing storm drains/channels/basins on the MCAS Tustin and previous reports and studies for the tributary drainage areas. Activity: Collect and review existing background data including existing storm drain index maps, "as-built" construction drawings, existing hydraulic and master plans of drainage, proposed development tentative maps, floodplain mapping, Army Corps of Engineers Floodplain Information Studies, FEMA studies, and proposed development plans. A field reconnaissance study will be performed. The field investigation will include a verification of existing conditions and the accuracy of the compiled record drawings. The field review will also include photo documentation of existing facilities and drainage patterns. Product: Indexed "as-built" construction drawings and documentation of existing facilities and land uses. Photo documentation will be compiled into a user-friendly format including a photo index map. Compilation of previous drainage studies for the tributary area. Task 1.2 Design Criteria Review And Site Evaluation Objective: To establish the study objectives and to perform a design criteria review to evaluate the necessary hydrology and hydraulic requirements prior to initiating the analysis and design process. This work item shall also include an evaluation of the site, based on information compiled from the research and investigation phase, to evaluate the potential drainage design constraints and opportunities associated with the development of the site drainage plan. Activity: This work task will establish the baseline requirements to ensure that the required level of flood protection is provided which will meet the various jurisdictional agency requirements. The task will also include a review of available data to identify existing constraints, which may impact the project drainage design, and to identify Revised ,Scope of Work: Tustin Air Base Runoff Master Plan Page 1- Revision date 3une 30, 2003 City of Tustin Product: TASK 1.3 ObjeCtive: Activity: Product: opportunities to coordinate drainage improvements with other plan features and adjacent projects. The task will include the establishment of the following critical design features or requirements: Hydraulic controls and committed water surface elevations · Review of City/County hydrologic and hydraulic criteria · Storm drain/channel discharge requirements · Method of hydrology/hydraulic calculations · Rational Method for Master Plan level storm drain systems · Unit Hydrograph (HEC-1) for Regional drainage facilities · Allowable open channel and closed conduit materials · Allowable design deviations, i.e., min. flood protection levels · Existing mapped flood hazards The criteria and objectives will be reviewed with the City and County. A report summarizing the recommended design criteria and guidelines will be prepared. This document will serve as a reference framework to base decisions as work progresses and unique situations are encountered. HEET/NG AttENDANCE AND CONSULTATION To review the progress of work and provide direction to the consultant regarding the development of the ROMP. Coordinate design criteria and objects with the County of Orange and the City. The Consultant will attend meetings and provide consulting services with the Client and other agencies as directed by the Client during research and investigation phase of the project. A maximum of two (2) meetings with the Client, and two (2) meeting with the County of Orange. PHASE I! - Master Plan Development Task 2.1 Develop Watershed Hydrology And Romp Base Map Sheets Objective: To develop base maps to perform the hydrology study and serve as the ROMP working drawings. Activity: Base topographic maps will be prepared at an appropriate scale for the development of hydrology maps and for master plan of drainage concept plans. Base topographic mapping shall be compiled from existing topography previous prepared for MCAS Tustin. Base topography to be converted from Microstation format to AutoCad 2000. Drainage areas will be determined from the topo base and field study. Additional information to be included on the hydrology base sheets as follows: Revised Scope of Work: Tustin Air Base Runoff Master Plan Page 2- Revision date June 30, 2003 -~ City of Tustin Drainage patterns Hydrology subarea designations · Hydrologic soil group data · Existing backbone storm drain lOcation and size · Existing/Ultimate Land use data Product: Base maps to be used for the hydrology study and master plan of drainage concept plans, in AutoCad 2000 format. Task 2.2 Watershed Link-Node Model Development Objective: To prepare an analysis of the existing and ultimate condition watershed and drainage patterns associated with the project site and tributary drainage areas. Determine watershed sub-boundaries 'for the tributary areas to measure drainage areas, evaluate watershed parameters, and identify drainage facility requirements. Identify critical concentration points to develop "link-node' models for the existing and ultimate condition hydrology analysis. Ultimate condition analysis will be prepared for one (1) land use plan provided by the client. Elevations and drainage patterns for the ultimate condition will be assumed to generally follow the existing land use gradient, unless grading plans are provided by the Client. Activity: Develop a hydrologic link-node model for each of the catchments or subbasins within the MCAS Tustin and tributary watershed. A hydrologic link-node model facilitates the analysis of a watershed by dividing the system into a series of inter-connected processes. A hydrologic process occurs at a "node" and nodes area connected by hydraulic conveyances or "links". Critical concentration points will be identified to establish the appropriate nodes, such as at facility inlet locations, critical flooding locations, major confluence locations, project boundaries, or drainage outlets. The properties of the various conveyance paths will be verified to establish the correct links in the hydrologic model. Overall schematic node diagrams for the existing and ultimate conditions will be generated to facilitate review of the calculations. Information from adjacent proposed developments .in currently undeveloped areas will be incorporated into the overall watershed model where information is available. Product: Annotated Hydrology maps, drainage areas, watershed parameters, and schematic diagrams for each independent hydrologic stream. Task 2.3 Rational Method Hydrology Analysis Objective: To compute time of concentration's for the development of the unit hydrograph analysis, and to determine existing and ultimate development peak discharges for master planned drainage facilities to serve individual planning areas. Activity: A Rational Method hydrology analysis for the MCAS Tustin and tributary watershed will be prepared for the existing and ultimate land use conditions using County rainfall and loss rate criteria. All Rational Method calculations will be performed Revised Scope of Work: Tustin Air Base Runoff Master Plan Page 3- Revision date 3une 30, 2003 City of Tustin using a computer model developed by Advanced Engineering Software (AES). Discharges will be developed for 25- and 100-year storm events in order to evaluate the local and federal flood protection requirements. The 100-year analysis will serve as the extreme event and provide data regarding the protection of structures and design of regional drainage facilities. The hydrologic analysis for the 25-year storm events will be performed for the analysis of master planned storm drain facilities to serve the individual planning areas. Product: Hydrology calculations, bound in an Appendix format with schematic diagrams for each independent hydrologic stream. Tabled results will be prepared for review/verification of analysis without utilizing the computer output. Task 2.4 Unit Hydrograph Hydrology Analysis Objective: To compute existing and ultimate design discharges for the onsite facilities within the MCAS Tustin. Activity: A Unit Hydrograph hydrology analysis will be prepared for the watersheds within, and tributary to the MCAS Tustin Area. Unit Hydrograph 100-year calculations will be completed using the AES computer model. Time of concentrations from the rational method analysis will be used to develop the hydrograph lag times. The unit hydrograph analysis will be prepared at critical concentration points at project boundary discharge locations. Product: Hydrology calculations, bound in an Appendix format with schematic diagrams for each independent hydrologic stream. Tabled results of 100-year values will be prepared for review/verification of analysis without utilizing the computer output. Task 2.5 Preliminary Impact/Deficiency Analysis Objective: To compare the existing condition hydrology analysis with the ultimate developed discharges and design discharges for "as-built" facilities, and to identify deviations from previously established design discharges. To determine the portions of the existing storm drain system that do not meet current criteria and identify systems for required improvements. Activity: Based on the hydrologic analyses developed for the MCAS Tustin an assessment will be prepared to quantify potential hydrologic impacts as a result of the project development. Flow rates from the ultimate hydrology will be compared with existing conditions, and with design discharges from "as-built" plans for existing drainage facilities. Impacts or deviations from previous discharges will be identified and tabled for future review during the drainage plan formulation stage. This activity includes the identification of impacts to existing facilities, detailed hydraulic models of the impacted systems is specifically excluded. Revised Scope of Work: Tustin Air Base Runoff Master Plan Page 4- Revision date 3une 30, 2003 City of Tustin Product: A matrix will be developed which identifies impacts to previously approved discharges and for design flow rates for existing drainage facilities. The matrix will be used to ensure that the necessary improvements and/or mitigation measures are incorporated into the master plan of drainage for the project area. Task 2.6 Preliminary Alternatives Review Objective: To review concepts for on-site detention and off-site regional channel improvement alternatives for mitigation of increased runoff from the project site. Identify a recommended concept for the development of the master plan of drainage. Activity: Based on the hydrologic analyses developed for the MCAS Tustin, prepare a conceptual analysis of on-site detention requirements to mitigate increased runoff from the project site. The analysis will identify the number, location and conceptual basin sizes suitable for a preliminary cost estimate. Prepare a separate conceptual analysis of the off-site regional facility capacities, and develop an estimate of the off- site improvements required to convey increased runoff associated with the site development. Prepare preliminary level cost estimates of the on-site detention and off-site improvement alternatives. The alternatives will be summarized in a table for comparison and review by the City. Develop a recommended concept for the master plan development in conjunction with the City of Tustin. Product: Conceptual plan and estimates of improvement costs for an on-site detention and off-site channel improvement alternatives will be prepared for the master plan of drainage. A summary sheet will be compiled which identifies facility requirements and estimates costs for each of the two alternatives. Task 2.7 Drainage Master Plan Development Objective: To develop a runoff management plan for drainage improvements to serve the future development of the MCAS Tustin at ultimate build-out based upon the results of Task 2.6. The management plan shall include alignments and sizes for regional drainage channels (Barranca Channel and Peters Canyon Channel) and master plan level storm drain systems to serve the project areas. The plan shall identify the portions of the existing channels/storm drain systems that do not meet current criteria and make recommendations for system improvements. Activity: Develop drainage facility alignments for the regional drainage channels and master plan level storm drain systems to provide the necessary level of flood protection for the MCAS Tustin. The system alignments shall be developed in conjunction with one (1) land use plan provided by the Client. The alignment study shall consider existing constraints, deficient and existing drainage improvements, ultimate land use plans, and physical site conditions to develop recommended system alignments. Opportunities and constraints affecting the alignments will be studied which include the use of open-space corridors, minimization of utility conflicts, right-of-way Revised Scope of Work: Tustin Air Base Runoff Master Plan Page 5- Revision date 3une 30, 200:3 -~ City of Tustin restrictions, locations of existing roadway culverts and drainage improvements, and environmental impacts. Recommended system alignments will be reviewed with the Client prior to development of facility sizing. Regional facilities to be reviewed with the County prior to development of facility sizing. Upon approval of the recommended system alignments, concept level normal depth hydraulics will be performed for each system so that an estimate of the facility sizes can be generated for cost estimation purposed. Recommended storm drain sizes will be developed for the existing backbone systems, which have been identified as deficient. Preliminary sizes will be estimated based on normal depth hydraulic calculations for the systems. Regional drainage facilities shall be sized based on the County's ultimate flowrates and channel sections for the facility. No scour or sediment transport analyses will be performed as part of this work. An estimate of the required equilibrium slope for soft-bottom channels will be estimated from existing engineered soft-bottom channels in the area. Develop concept level plan for the recommended regional drainage facilities. Conceptual plan shall include plan alignment, facility sizes, typical sections and design discharges. Prepare concept level plans for the master planned level storm drain systems. Drainage tables shall be prepared for the master plan level storm drain systems which include facility reach lengths and sizes, and estimated invert elevations. Drainage tables for the master plan level storm drain systems are recommended in lieu of more detailed plan profiles. The preliminary plans for Barranca Channel and Peters Canyon Wash (from Railroad to Barranca Parkway) include plan views at 1"-200' for the ultimate channel configurations. Analysis of the Santa Ana- Santa Fe channel will involve the investigation of flooding impacts on MCAS Tustin property by reviewing data available at the County and FEMA. Develop drainage facility alignments for the downstream off-site regional drainage channels to provide the necessary level of flood protection, or develop detention basin facility sizes and locations to mitigate increase runoff due to project development. The task is based on the assumption that the existing downstream channels do not have the capacity to convey the ultimate condition tributary runoff. Ultimate channel sizes will be developed for off-site facilities determined to be under capacity. Concept level plans will be developed for the off-site regional channel improvements. The development of flood control improvements to Barranca Channel will include an alternatives analysis for the relocation of the MWD line that crossing the channel to increase the channel capacity, and potential eliminate the need for on-site detention. If necessary, this task involves determining the appropriate locations for detention basins, developing stage-storage-discharge curves, and routing the hydrographs utilizing the AES software. Identify anticipated mitigation requirements associated with the base development and assess alternative means to satisfy the mitigation requirements. Review alternative methods with the City prior to development of a conceptual plan. Based Revised Scope of Work: Tustin Air Base Runoff Master Plan Page 6- Revision date 3une 30, 2003 -~ City of Tustin on the alternatives analysis and City coordination, develop conceptual level plan to incorporate the recommended mitigation measures. Detailed improvement plans for master plan and regional facilities, and habitat mitigation plans for environmental impacts associated with the development of the MCAS Tustin is excluded from this scope of services. Product: Master plan of drainage maps annotated with proposed system horizontal alignments, facility sizes and typical sections. Drainage tables for master plan level systems with facilities sizes, lengths, and elevations. Conceptual plan for mitigation measures. Task 2.8 Stormwater quality Master Plan Objective: To determine the need for stormwater quality best management practices (BMPs) and to determine appropriate methods for treatment in compliance with the Santa Ana Regional Water Quality Control Board's requirements. Activity: Based on the hydrologic analyses and the storm drain master plan developed for the MCAS Tustin an assessment will be prepared to determine the appropriate size and locations of BMPs to ensure compliance with Total Maximum Daily Loads (TMDLs) for the San Diego Creek Watershed. An overall mitigation plan for impacts to stormwater quality will be prepared which include both non-structural and structural BMPs. Product: A matrix will be developed which lists appropriate onsite BMPs. The matrix will be used to ensure that the necessary mitigation measures are incorporated into the runoff management plan. Also a section of the report will discuss the overall stormwater quality plan including both non-structural and structural BMPs and their implementation. Task 2.9 Engineer's Construction Quantity And Cost Estimate Objective: To develop quantity and construction cost figures for implementation of the master plan. Activity: Develop a database of unit costs for review and approval by the Client. The unit costs will be derived from manufacturers data, Caltrans Cost Data, commercially available cost estimating guides and bid prices from recently constructed projects within the vicinity of the project and the County of Orange. Construction costs will include pavement removal and replacement, allowances for the protection of utilities, right-of-way acquisition and traffic control in addition to the direct costs of conduit or open channel construction. Compile improvement quantities corresponding to the recommendations made for the MPD. Apply the unit costs to determine construction costs for the recommended improvements. Cost estimates will be prepared for the following categories: Revised Scope of Work: Tustin Air Base Runoff I~laster Plan Page 7- Revision date 3une 30, 2003 City of Tustin Product: Task 2.10 Objective: Activity: Product: Task 2.11 Objective: To Activity: Product: , Total MPD improvement cost · Cost for improvement/rehabilitation of existing fadlities · Cost for new facilities required to serve the MCAS Tustin Work under this item specifically excludes preparation of cost estimates during stages prior to the completion of the master plan preparation. Report section including a narrative description of the basis of the derivation of the unit cost values, a description summarizing the engineers cost estimate and cost matrices for the categories indicated above. Drainage Fee Allocation/Benefit Determination To determine a breakdown of how the drainage improvement costs will be allocated between planning areas within the base reuse area. Based on the recommended master plan' of drainage, benefit allocations will be developed to obtain cost apportionments for the existing and new development on the base. The facilities improvement costs will be estimated for each master planned facility within each drainage subarea. Costs will be allocated based on existing land uses and proposed planning areas within each of the major watershed areas. A drainage fee map will be prepared to correlate the estimate improvement costs with the corresponding drainage tributary to the master planned facilities. Regulatory Delineation And Initial Coordination determine the extent of the jurisdictional waters within Peters Canyon and provide initial coordination with regulatory resource agencies. Review previous delineations prepared for other areas on the base. The Consultant will prepare a jurisdictional delineation of Peters Canyon Wash to determine the limits of the "waters of the United States" including wetlands. This task also includes a biologic constraints survey (prepared by Bonterra Consulting), to aid in the limits of the jurisdictional delineation. Provide a review of previous delineation work that has been completed on the base. Based on the review of the previous studies, identify areas suggested for further field review. Additional field delineation work to be completed for an additional cost under a separate addendum. Initial coordination meetings between the Corps of Engineers, California Department of Fish and Game, and the Regional Water Quality Control Board will be conducted to solicit the resource agencies opinions on all of the proposed improvements and expected mitigation requirements within the base. Three (3) draft jurisdictional delineation reports. Three (3) final copies of delineation report. A maximum of two (2) Client meetings and two (2) Resource Agency Meetings. Revised Scope of Work: Tustin Air Base Runoff Master Plan Page 8- Revision date 3une :30, 2003 C:ity of Tustin Task 2.12 Meeting Attendance And Consultation Objective: To review the progress of work and provide direction to the consultant regarding the development of the Runoff Management Plan. Activity: The Consultant will attend meetings and provide consulting services with the Client and the County as directed by the Client during each of the engineering phases identified above. Product: A maximum of six (6) meetings with City or County at the Client's direction. Task 2.13 Project Administration Objective: Provide the necessary administration and management to meet the client's expectations for budget, schedule and quality of product. Activity: Attend meetings as necessary to maintain an understanding of the project status. Monitor progress of RBF and prepare status reports to the client. Project budget administration of the contract and invoices would also be accomplished with this task. Product: Attendance of meetings, project status reports, invoices and an efficiently executed, work plan that delivers a project to the client within schedule and budget. PHASE Iii - Draft and Final Report Preparation Task 3.1 Preparation Of Draft Report Objective: To prepare the draft Runoff Management Plan (ROMP) for review and approval by the Client and the County. Activity: Prepare a draft ROMP for review by the City of Tustin and the County of Orange. Draft report will include chapters for the following: · Executive Summary · Background and Research · Description of Existing Systems and Operation · Previous Studies, Reports and Established Flow Rates · Hydrology and Hydraulic Analysis · Master Plan Recommendation · Stormwater Quality Management Plan · Quantity and Cost Estimates · Planning Area Facility Plans and Phasing Schedule Recommended Additional Studies Revised Scope of Work: Tustin Air Base Runoff Master Plan Page 9- Revision date June 30, 2003 -~ City of Tustin Product: The draft report will be reviewed with the City and the County at the time of submittal and comments from the City and County will be received at the end of the review period. Task 3.2 Preparation Of Final Report Objective: To prepare the final Runoff Management Plan report for distribution. Activity: Comments received from the Client and the County at the draft review stage will be incorporated into the final document. The Client will receive a final screen check copy of the report and accompanying exhibits prior to final printing. Product: The final ROMP report. The final report shall include all recommendations and conclusions developed during the ROMP preparation. The document shall include: · Drainage Facilities Maps with Existing and Proposed Improvements · Hydrology Maps with flow paths, sub-areas, and concentration points · Land Use and Soil Type Maps Original mylars shall be provided for all maps prepared as part of the ROMP development, along with computer drawing files in AutoCad. Existing files to be provided by the City in Microstation format. Task 3.3 Meeting Attendance And Consultation Objective: To review the progress of work and provide direction to the consultant regarding the development of the MPD. Activity: The Consultant will attend meetings and provide consulting services with the Client and other agencies as directed by the Client during each of the engineering phases identified above. Product: A maximum of three (3) meetings with the City and the County. PHASE IV - OPTIONAL TASK ITEMS Task 4. Z Phasing/Implementation Schedule Objective: To provide a tool for short term and long range planning for the development of the MCAS Tustin. Activity: Generate two alternative phasing/implementation schedules for construction of the recommended drainage improvements for development of the MCAS Tustin. The schedules will identify the drainage facilities necessary to provide the required level of flood protection for the implementation of the individual planning areas. The Revised Scope of Work: Tustin Air Base Runoff Master Plan Page :LO- Revision date 3une 30, 2003 -~ City of Tustin schedule shall include that regional drainage facilities and master plan level storm drain systems required to serve each area. This task does not include the development of temporary mitigation measures for the implementation of individual planning areas without the necessary master planned drainage facilities. If it is determined that temporary mitigation measures are requested, then these facilities can be developed for an additional cost under a separate addendum. Also, this task does not involve hydrologic analysis for each phase or stage of the project. Should phased hydrology and mitigation be required, the hydrology can be developed for an additional cost under a separate addendum. Product: A summary decision matrix useful to technical and non-technical staff in developing recommendations regarding facility improvement priorities and phasing. Task 4.2 Preparation Of CEQA Documentation Objective: To prepare a Mitigated Negative Declaration for the master plan in accordance with CEQA guidelines. Activity: RBF will prepare an Initial Study in accordance with the California Environmental Quality Act (CEQA) and the City of Tustin's Enviromental Review Guidelines. The Initial Study will include an Introduction, Project Description and Checklist in support of the determination. Supporting analysis will be provided for each checklist determination. The analysis shall be in accordance with Sections 15063, 15162, 15167 and 15168 of the CEQA guidelines. With a conclusion in the Initial Study that no significant environmental effects would occur as a result of the proposed project, a mitigated negative declaration will be prepared. Following this determination, RBF will prepare the Notice of Intent (NOI) to Adopt and the mitigated negative declaration for public review. The NOI and mitigated negative declaration will be attached to the Initial Study. Following the public review, the Final document will be prepared as a companion document to the public review report. The Final document will include a purpose subsection, reference the review process, comments received, responses and any required edits/updates to the document. Also included in the Final document will be the Mitigation Monitoring Program in accordance with Public Resources Code Section 21081.6 (AB 3180). RBF will prepare and file the Notice of Intent and Notice of Determination at the Orange County Recorders Office. Product: The Final CEQA Documentation. Revised Scope of Work: Tustin Air Base Runoff Master Plan Page l:L- Revision date June 30, 200:3 City of Tustin Assumptions: 1. This scope assumes the following: 2. Digital topographic mapping, in Microstation® Format, to be provided by the Client. No field surveying services to be provided as part of this scope of services. 3. Runoff Management Plan will be reviewed by the City of Tustin and the County of Orange. 4. Client will provide current land use planning data for the Base Reuse. The master plan will be developed for one (1) land use plan. Exclusions: Any work relating to the following items is specifically excluded from the engineering services described herein. Should these services be required, they may be undertaken by the consultant under separate addendum. 1. Environmental Impact Report Preparation 2. Aerial topography or photography 3. Field location of utilities 4. Utility relocation plans 5. Application and Processing Fees 6. Environmental Agency Permit Processing/Review or Mitigation Plans Revised Scope of Work: Tustin Air Base Runoff Master Plan Page :~2- Revision date June 30, 200:3 -~ City of Tustin ENGINEERING FEES: RBF Consulting will complete the work outlined in our proposal and invoice the Client monthly on a percentage of completion basis in accordance with Schedule of Professional Fees below. Any work considered to be outside of the scope of work will be accomplished as "Extra Work" on a Time and Materials basis in accordance with the enclosed Hourly Rate Schedule. The allowance for reproduction services is a budget amount representing an initial authorization. Actual costs for blueprinting and reproduction services will be billed to the Client directly without markup or handling fees. TASK DESCRIPTION PROFESSIONAL FEE PHASE I - RESEARCH AND INVESTIGATION Task 1.1 Research and Investigation $3,900 Task 1.2 Design Criteria Review and Site Evaluation 4,900 Task 1.3 Meeting Attendance and Consultation 7,000 Subtotal Phase I $Z5,800 PHASE II - MASTER PLAN DEVELOPMENT Task 2.1 Develop Hydrology and MPD Base Map Sheets $12,400 Task 2.2 Watershed Link-Node Model Development 16,800 Task 2.3 Rational Method Hydrology Analysis 11,600 Task 2.4 Unit Hydrograph Hydrology Analysis 7,500 Task 2.5 Preliminary Impact/Deficiency Analysis 2,700 Task 2.6 Preliminary Alternatives Review 7,000 Task 2.7 Drainage Master Plan Development 51,300 Task 2.8 Stormwater Quality Master Plan 11,800 Task 2.9 Construction Quantity and Cost Estimate 4,500 Task 2.10 Drainage Fee Allocation/Benefit Determination 9,600 Task 2.11 Regulatory Delineation and Initial Consultation 13,500 Task 2.12 Meeting Attendance and Consultation 8,000 Task 2.13 Project Administration 5,400 Subtotal Phase II $162,:L00 PHASE III - DRAFT AND FINAL REPORT PREPARATION Task 3.1 Preparation of Draft Report $14,200 Task 3.2 Preparation of Final Report 7,300 Task 3.3 Meeting Attendance and Consultation 4,400 Subtotal Phase III $25,900 TOTAL PROFESSIONAL FEES Reimbursable Expenses * 10,200 $203,800 Proposal: Tustin Air Base Runoff Master Plan Page :L3 - Revision date ~une 30, 2003 City of Tustin PHASE IV- OPTIONAL TASK ZTEf4S Task 4.1 Phasing/Implementation Schedule Task 4.2 Meeting Attendance and Consultation $4,700 $20,900 NOTES: * Reimbursable Expenses: Allowance for reproduction for working prints, in-house reproductions, express and overnight mailings, deliveries, developmental drawings, and progress prints. Reproduction allowance includes reimbursement for all blueprinting and reproduction costs necessary for the preparation of the Project Report. Allowance is a not-to-exceed budget without prior authorization from the Client. Progress billings will be forwarded to the Client on a monthly basis. These billings will include the fees earned for the billing period plus all direct costs advanced by Consultant. The Client shall make every reasonable effort to review invoices within fifteen (15) working days from the date of receipt of the invoices and notify Consultant in writing of any particular item that is alleged to be incorrect. Deviations or modifications fro the original proposal or attached scope of work will result in potential re-evaluation of the associated design fees. Items not specifically requested in the proposal will be considered an additional work item. Proposal: Tustin Air Base Runoff Master Plan Page ~4 - Revision date June 30, 2003