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HomeMy WebLinkAboutTIS 2024-05-21 Item 2G - Contract Amendment #3 - South 131st Street Drainage Improvement with Pace EngineersTO: FROM: BY: CC: DATE: SUBJECT: City of Tukwila Public Works Department - Hari P nnck cnti, Director/City Engineer Thomas McLeod, Mayor INFORMATIONAL MEMORANDUM Transportation and Infrastructure Committee Hari Ponnekanti, Public Works Director Joshua Hopkins, Surface Water Project Manager Mayor Thomas McLeod May 7, 2024 S. 131St Street Drainage Improvement Project Project No. 9161204, Contract No. 22-102 Amendment No. 3 Additional Engineering Services ISSUE Approve amendment No. 3 to Contract No. 22-102 with Pace Engineers for additional engineering services. BACKGROUND The S 131 st Drainage Improvement Project goal is to address flooding of roadway and adjacent properties, and to address issues that contribute to flooding, water quality concerns, barriers to fish movement and habitat degradation. Amendment No. 3 includes additional engineering services to address residual flooding not addressed by the original scope of work. After completing 30% design, hydraulic modeling depicted residual flooding persisting on public ROW and private property along S 131 st PI. ANALYSIS This contract amendment will include survey, critical area delineation, hydraulic analysis, and preliminary design feasibility for a larger area - upstream and downstream of flooding on S 131st PI. Pace Engineers will develop analysis and preliminary feasibility to increase conveyance capacity to resolve flooding to ROW and private property. This information will be used to determine the scope and level of effort for design development and funding needs in a subsequent phase of work. FISCAL IMPACT Pace Engineers has provided a cost estimate not to exceed $139,733.00 to perform additional engineering services. Total funding for contract 22-102 is $587,681.00. Pace Design Contract Amendment No. 1 & 2 Amendment No. 3 Grants Utility Revenue Consultant $371,610.00 $19,880.00 $139,733.00 Total: $531,223.00 Budget $276,681.00 $311,000.00 $587,681.00 RECOMMENDATION Council is being asked to approve Amendment No. 3 to Contract 22-102 with Pace Engineers for additional engineering services in the amount of $139,733 and to consider this item on the Consent Agenda at the June 3, 2024, Regular Council Meeting. Attachments: CIP 2023-2028, Pg 85 Pace Scope and LOE 87 CITY OF TUKWILA CAPITAL PROJECT SUMMARY 2023 to 2028 PROJECT: S 131st Place Drainage Improvements Project No. 91641204 DESCRIPTION: Design and replace an existing 36" culvert under S. 131st PI. Raise the roadway approximately 18" and/or provide a concrete wall or other means to keep Southgate Creek within its banks during storm events. JUSTIFICATION: Southgate Creek overtops its bank several times per year during storm events and runs through private property. Debris is deposited within a private driveway and storm system. STATUS: Maintenance is performed annually on the creek to remove excess sedimentation to reduce the likelihood of flooding. MAINT. IMPACT: Reduce the frequency of stream sediment removal and storm cleanup. COMMENT: Project will require an HPA. Will consider combining with a future overlay project to reduce overall costs. A grant request for $200K was submitted to the KCFCD in 2020. FINANCIAL Through Estimated (in $000's) 2021 2022 2023 2024 2025 2026 2027 2028 BEYOND TOTAL EXPENSES Design 100 421 521 Land (R/W) 250 250 Const. Mgmt. 400 400 Construction 2,000 2,000 TOTAL EXPENSES 0 100 671 2,400 0 0 0 0 0 3,171 FUND SOURCES Awarded Grant 60 60 120 Proposed Grant 300 1,600 1,900 Mitigation Actual 0 Mitigation Expected 0 Utility Revenue 0 40 311 800 0 0 0 0 0 1,151 TOTAL SOURCES 0 100 671 2,400 0 0 0 0 0 3,171 ,,, ,' Project Location . n li; r P`---i- vigil P. re% IJ 19,r_r�� e< 5 s 7 0 i 1 , i_` S 158 150 $[ .i. Sl -4• '1 . s 1n� {1 7ukwua Pr.`, sr �. 11 � 2023 - 2028 Capital Improvement Program accii exa m 88 City of Tukwila 6200 Southcenter Boulevard, Tukwila WA 98188 Agreement Number: CONTRACT FOR SERVICES Amendment # 3 Between the City of Tukwila and PACE Engineers, Inc. That portion of Contract No. 22-102 between the City of Tukwila and PACE Engineers, Inc. is hereby amended as follows: Section 2: Scope of Services. Work under this contract shall be amended to include reimbursement for direct expenses and costs associated with the additional contract scope of services as described in Exhibit A, attached. Section 4: Payment. Payment is hereby changed to include an additional $139,733.00 for this additional scope of services. See Exhibit A. The maximum amount payable under this contract as amended inclusive of all fees and other costs shall not exceed $531,223.00 without express written modifications of the Agreement signed by the City. All other provisions of the contract shall remain in full force and effect. Dated this day of , 20 ** City signatures to be obtained by ** Contractor signature to be obtained by City Clerk's Staff ONLY. ** sponsor staff. ** CITY OF TUKWILA CONTRACTOR: Thomas McLeod, Mayor By: Printed Name: Kenneth H Nilsen ATTEST/AUTHENTICATED: Title: President Andy Youn, City Clerk APPROVED AS TO FORM: Office of the City Attorney CA Reviewed May 2020 Page 1 of 139 SOUTHGATE CREEK DRAINAGE IMPROVEMENT PHASE II PHASE IIA — FEASIBILITY PROJECT UNDERSTANDING The City of Tukwila (City) has requested that PACE suspend the original scope and budget for the 131 st Street Drainage Improvements project following the Department of Ecology Stormwater Grant submittal and develop a new scope and budget for a comprehensive drainage improvements feasibility study that encompasses a greater area and includes more drainage elements to address the flooding on S.131 st Street. This feasibility study is the initial stage for the Phase II project, now being labeled as Phase IIA, with the future Phase IIB being final design documents. Prior modifications to the original scope of work requested by the City for this project included additional topographic survey, basin analysis and modeling, the hydraulic design report and 30% plans, and the site feasibility/site investigation report. PACE prepared an Additional Services Agreement (ASA) in March 2023, and prepared a second Draft ASA in December 2023 for this additional work requested by the City beyond the project scope. As an alternative to proceeding with an additional ASA to modify the existing budget for the expanded scope, the City requested that PACE use the existing budget to complete the necessary tasks, to suspend the current design effort, and prepare documents needed for a grant application which has been done. Any funds remaining after those above -described elements are complete would be allocated the new Phase IIA scope and budget. This effort included the following: 1. Terminate the current project design at 30%, with the addition of adding notes and impact exhibits, along with an environmental design narrative for Washington Department of Fish and Wildlife (WDFW) review. (completed) 2. Finalize reports, fee estimate, and documents for a grant application for Department of Ecology (Ecology) Stormwater Grant. (completed) 3. Prepare a scope and fee proposal for the Phase IIA feasibility tasks including an expanded project area requiring additional survey, hydraulic design, stormwater (flow control and water quality) evaluation, and conceptual stormwater options. (this document) It is our understanding that the project originally scoped under City of Tukwila contract 22-102 for South 131st Street. Drainage Improvements is considered complete as of the Department of Ecology Grant submittal, with any remaining funding to be allocated towards the new scope for the Southgate Creek Drainage Improvements Phase IIA Feasibility Study. 90 PACE is proposing the following scope and fee for the Southgate Creek Drainage Improvements Phase IIA Feasibility Study. SCOPE OF WORK Task 1: Project Management, Meetings, and Coordination PACE will provide administration and coordination throughout the duration of the project, including coordination of survey and subconsultants, contracting and invoicing, scheduling, and client coordination. PACE will conduct regular coordination and update meetings virtually with City of Tukwila and GeoEngineers at project milestones and as needed. The following tasks are anticipated: ■ Develop approach and scope for the Phase IIA Feasibility Study ■ Bi-weekly project check -in meetings. It is assumed there will be eight (8) meetings, two (2) hours each for two (2) PACE staff, including preparation of agenda and meeting minutes. ■ Conceptual hydraulic design development and review with the City, ■ Review / Check -in meetings for each component of the Hydraulic Feasibility Analysis Task 4, (8 meetings total). ■ Project invoicing, progress reports and team coordination. For the purpose of budgeting, PACE has assumed the project will continue for 16 weeks through the completion of this scope. If the project continues beyond this period, services will be considered additional to the scope of this proposal. Prior to any additional work being performed, PACE will provide the Client with an estimate of fees to continue with these tasks. Deliverables ■ Meeting agendas and minutes (8 Total) ■ Monthly invoicing with progress reports (4 Total) Task 2: Site Reconnaissance Up to two (2) PACE project team staff will conduct a single site visit to understand the site - specific conditions. Qualitative observations concerning existing vegetation, riverbank conditions, exposed stormwater features, and exposed highway features will be documented in field notes and site photos. It is assumed that City staff will accompany PACE and will provide PACE with any available as -built information. 91 Task 3: Survey and data collection PACE will extend the topographic survey conducted in January 2023 for the South 131 st Place Drainage Improvement Project. Survey control will be extended to gather information on approximately 1200 linear feet of existing ditches adjacent to SR 599, existing Southgate Creek east of Macadam Rd S, a portion of S 134th PL along the south westerly margin. Together with ditch lines along the southern edge of Right of Way along S 133' Street approx. 350 linear feet. Together with additional mapping along the southeasterly margins of S 131 St PL along with 44th AVE S between King County Tax Lots 7349200245 and 7349200340. Together with topographic elements for portions of King County Tax Parcels; 261320087, 000480003, 2716000030, 2613200028, 0004800002, 2613200133, 26132000085, 7349200340, 7349200255, 7349200225, 7349200220, 7349200095, 7349200040, 7349200005, 7349200345, 0004800003, 0004800014 and 2716000030 as depicted in pink on attached Exhibit "A". Together with topographic elements within tax lot 2613200134 also depicted in pink on attached Exhibit "A". Survey will also include outfall of stormwater pipe of Southgate Creek downstream of the SR 599 culvert as well as the outfall at the confluence with the Duwamish River. 1. Topographic Survey —Shall include but is not limited to the following: ■ Channel thalweg (deepest point) at 50 ft intervals, and break lines including toe of stream bank, top of bank, any terraces or major bars or other features, and floodplain lying 30' either side of edge of channel. ■ Water surface elevations (as required). ■ Major channel angle points. • Wetlands flag and ordinary high water (OHW) delineations. • Culverts with invert elevation and size. • Efforts will be made to show Sound Transit Light Rail columns and downspouts where accessible or within 20' of survey limits • Hardscapes such as walks, driveways, etc. • Planted ornamental trees • Retaining walls and rockeries • Fencing, curb, pavement and gravel edges • Roadway markings and signage • Surface indications of utilities, such as vaults, pedestals, irrigation etc. • Utility lines that can be visually observed, located by RF locating equipment (APS estimate fee of $2,875.00), or identified on readily available record drawings. • Sewer and storm structures will be measured for invert elevations, size of pipe, and size of structure. 92 ■ Any tree 8-inch in diameter or greater as measured 4 feet above the ground. ■ Contours will be generated at a 1-foot interval. PACE survey team will thoroughly investigate and integrate relevant information accessible from City data sources, whether readily available or provided. Any additional time due to unforeseen issues or out of scope work will be billed on a Time -and -Expense (Rates) fee basis only after City's approval. The above scope of work and related fee has been based on the following assumptions: ■ Any right -of -entry to be secured by the City. PACE has identified eighteen (19) private ownership lots that will be in the vicinity of the survey. Full access is not needed for all lots. However, notification that we will be working near their properties is advised. ■ Any OHW and Wetland delineation flags will be hung by GeoEngineers prior to the commencement of the field survey. ■ Re -mobilizations or additional work based on areas or features of concern that were not originally discussed; areas identified by other specialists (Biologists, Arborists, etc.) after the initial field work or those areas which were not accessed due to safety or limitations of time. ■ King County GIS parcel lines will be used to show appropriate right of way and property lines. No ownership or occupancy will be apart of this Survey. ■ This Task is a Topographic Survey and not a Boundary Survey. ■ Topographic mapping data will be provided in AutoCAD C3D 2021, per PACE ACAD standards. Deliverables Survey basemap CAD file in .dwg format and signed PDF sheet set Task 4: Hydraulic Feasibility Analysis To fully evaluate the potential benefits of modifying Southgate Creek with the associated contributing stormwater run-off, the following analysis is broken down into four subtasks. The Hydraulic Feasibility Analysis will be summarized into a single report. The named properties described in this proposal are as follows: NorMed Property (Parcels 734920-0095 and 93 7349200040), Triangle Property (Parcels 2613200134 and 261320087), and Masonry Property (Parcel 7349200340). 4.1 Stormwater Park Flow Control and Water Quality Evaluation: 1. PACE will evaluate how much detention storage and water quality treatment can be provided in parcels 2613200134 and 261320087 (the Triangle Property), through a WWHM® or MGSFIood® hydrologic model. 2. PACE will explore the feasibility of installing both traditional and low impact development detention/water quality BMPs in the Triangle property. 3. PACE will provide H&H modeling files identifying water quality and flow control benefits for up to three (3) schematic design options (or menu of options) for City review and selection of their preferred design option. 4. Following the City's approval of the preferred alternative, PACE will prepare a Technical Memo summarizing the options and the City's preferred alternative which will be used as the Basis of Design going forward. 5. Upon receiving approval from the City for the preferred design option, PACE will prepare stormwater park conceptual plans and a graphic based on the size of the stormwater features selected. 4.2 Upsize 44th Avenue South and South 133rd Intersection Culverts: 1. PACE will analyze the S 133rd Street stormwater network, including the existing bypass system in the commercial parking lot and at the 133rd intersection, to assess functionality, determine how much flow is being conveyed to the mainstem verses being bypassed. 2. PACE will evaluate how much conveyance capacity the mainstem Southgate Creek can provide through the Triangle and/or Masonry properties with upgraded culverts at S 133rd Street and 44th Avenue S. 3. PACE will prepare a conceptual plan showing the proposed modifications to be included as an exhibit in the Hydraulic Analysis Report. 4.3 Additional Back Channel Design: 1. Building on the previous task, assuming both 44th Avenue S and S 133rd Place crossings were upgraded, PACE will explore the possibility of connecting the Masonry property and the wetland behind NorMed with an additional back channel alignment through stream grading and hydraulic modeling. 2. PACE will create a Civil 3D surface model for the additional back -channel alignment. Civil 3D CAD works to show conceptual landscape and hydraulic layout 94 for communication uses. Stream grading and alignment design for the additional back channel alignment. This evaluates the hydraulic capacity the back channel and stormwater park can provide. This grading will be used in the SRH-2D model and conceptual figures. 3. PACE will prepare a conceptual plan as an exhibit that will include the back -channel alignment and conceptual grading. This will be incorporated into the final Hydraulic Analysis Feasibility Report. 4.4 South 134th Place Flow Control and Water Quality Evaluation: 1. PACE will explore the feasibility of installing both traditional and low impact development detention/water quality BMPs in the City right-of-way along S 134th Place. 2. PACE will determine the level of water quality treatment that can be provided along South 134th Place. 3. PACE will prepare the channel section conceptual design along South 134th Place for flood control. The above scope of work and related fee has been based on the following assumption: ■ The treated stormwater can discharge into the Southgate Creek buffer that is also proposed to be re -graded to provide flood plain functions for Southgate Creek. ■ Roadway design and utility relocation are not included in this phase. Deliverables Hydraulic Feasibility Analysis Report 4.1 Stormwater Park Flow Control and Water Quality Evaluation Summary of three options and preferred alternative H&H Modeling Files (3 Design Options) Stormwater Park conceptual Plans & Graphic 4.2 Upsize 44th Avenue and South 133rd Intersection Culverts Conceptual plans showing culvert modifications 4.3 Additional Back Channel Design Civil 3D surface model Back Channel Conceptual Plans 4.4 South 134th Place Flow Control and Water Quality Evaluation S 134th Place WQ and channel section conceptual plans 95 Task 5: Agency Review and Response PACE will check -in with the City and receive feedback during each step of the evaluation, included as part of the budget allocated under Task 1. PACE has included time in this task to address City comments and feedback provided for the consolidated report. 1. Once all the evaluations described in Task 4 are completed, PACE will consolidate the sections into a single document, the "Hydraulic Analysis Feasibility Report for Phase IIA", then PACE will submit the report to the City for Review. 2. PACE will revise the report based on comments received from the City and resubmit a Final version. For the purpose of establishing a budget for this proposal, PACE has allocated up to twenty-four (24) hours for two (2) review cycles. If additional review cycles are needed or changes are requested to the Task 4 evaluations, those services will be considered additional to the scope of this proposal. Prior to any additional work being performed, PACE will provide the City with an estimate for the fees (Time -and Expense), based on the current rates to continue with this task. Task 6: Sub -Consultant Wetland & Stream Delineations GeoEngineers has provided the attached wetland and stream delineation services as a sub - consultant to PACE Engineers, Inc. PROJECT COST The costs associated with the above -described work are shown on the attached spreadsheet. Fees shown in the summary table below outline the current balance and requested contract amendment. ESTIMATED PROJECT COST PHASE IIA $ 231,355 MANAGEMENT RESERVE FUND PHASE IIA $ 25,000 SUBTOTAL PHASE IIA $ 256,355 ORIGINAL CONTRACT AMOUNT $371,610 AMENDMENT#1 Site Investigation Report $19,880 AMENDMENT#2 Contract Extension TOTAL CONTRACT AMOUNT $391,490 BILLED TO DATE (4/18/2024) $ 274,868 BALANCE ON EXISTING CONTRACT $ 116,622 REQUESTED CONTRACT AMENDMENT $ 139,733 END OF SCOPE OF WORK 96 PACE Engineers Project Budget Worksheet - 2024 Standard Rates Project Name Project #: S 131st Place Drainage Improvement Project - Part B Location:[ Tukwila, WA Prepared By: KN / BW/TW 22546 Billing Group #: Task #: Date: 5/6/2024 Labor Hours by Classification Staff Type # (See Labor Rates Table) Labor Code 1 5 14 14 74 45 118 Staff Type Hourly Rate $288 $222 $209 $209 $166 $181 $151 Staff Name Ken Brian Tasha Christian Dean April Drawing/TaskTitle Job Title Sr. Principal Engineer Sr. Landscape Architect Project Engineer Project Engineer _ CAD Tech III Sr. Survey Tech Sr. Project A dministrato r Hour Total Dollar Total Phase IIA FEASIBILITY COST Task 1: Project Management, Meetings & Coordination 20 32 40 4 4 4 104 $23,448.00 Task 2: Site Reconnaissance 10 10 20 $4,180.00 Task 3 - Survey and data collection $36,039.00 Task 4 - Hydraulic Feasiblity Analysis Subtask 4.1 -Stormwater Park Flow Control &Water Quality Evaluation 2 32 84 44 98 260 $50,700.00 Evaluate Stormwater BMPs, WWHM or MGSFIood Model Prepare 3 Schematic design options Prepare Tech Memo summarizing options Create 3d CAD model and stream grading Prepare Stormwater Park Conceptual Plan (1 sheet) and Graphic Subtask 4.2 - Upsize 44th Ave & at S 133rd Intersection Culverts 2 2 30 4 26 64 $12,442.00 Analyze S 133rd Storm Network Evaluate conveyance with upgraded Culverts Prepare Conceptual Plan (1 sheet) Subtask 4.3 - Additional Back Channel Design 2 2 64 4 56 128 $24,528.00 Evaluate Stormwater - back channel alignment Create 3d CAD model and stream grading Prepare Conceptual Plan (1 sheet) Subtask 4.4 - S 134th Pl Flow Control and Water Quality Evaluation 2 2 20 124 • 32 180 $36,428.00 Evaluate BMPs, Analyze level of WQ in the City ROW Prepare Conceptual Plan (1 sheet) Task 5 - Agency Review and Response 4 4 8 8 24 $4,920.00 Final Hydraulic Feasiblity Report - address comments PACE TOTAL $192,685.00 Hours Total Labor Total 32.0 74.0 256.0 190.0. 216.0 4.0 8.0 $9,216 $16,428 $53,504 $39,710. $35,856 $724 $1,208 780.0 192685.0 $192,685.00 Expenses Reimbursable Quantity Cost rate/unit Postage/Courier Printing Costs PhotoNideo Mileage/Travel/Per Diem Miscellaneous $500.00 Total I $500.00 i File: PHASE IIA for Southgate Creek Improvements.xlsx, Fee Worksheet Page 1 of 1 Subconsultants Utility Locate Mechanical Engineer Electrical Engineer Geotechnical Enginee $34,700 I & C Engineer Subconsultant Subtotal 34,700 Markup Total 10% $38,170 Please note, this project is budgeted as a whole, not by task PACE Billed Labor Total Reimbursable Expenses Su bconsulta nts Total Project Budget $192,685.00 $500.00 $38,170.00 ,231,355.00 Printed: 5/6/2024, 4:41 PM 101 DESCRIPTION 1. Office Tech I, Expediter I 2. Office Tech 11, Expediter II, Survey Field Tech 3. Intern, Survey Tech I, Jr. CAD Tech, Jr. Inspector, Office Tech III 4. Designer, Jr. Planner, Survey Tech II, CAD Tech, Inspector, Sr. Office Tech, Jr. Ecologist/Scientist 5. Jr. Engineering Staff, Designer I, Planner, GIS Tech, Survey Tech III, CAD Tech I, Inspector 1, Project Administrator, Ecologist 6. Landscape Architect, Engineering Staff I, Designer II, Planner I, Survey Tech IV, GIS Analyst I, CAD Tech II, Inspector II, Sr. Project Administrator, Ecologist I, 7. Landscape Architect 1, Engineering Staff II, Designer III, Planner II, GIS Analyst II, CAD Tech III, Inspector III, Survey Tech V, Ecologist 11 8. Landscape Architect II, Project Designer, Planner III, Sr. Survey Tech, GIS Analyst III, Engineering Staff III, Sr. CAD Tech, Sr. Inspector, Scientist, Ecologist III 9. Landscape Architect III, Engineering Staff IV, Project Designer I, Sr. Planner, Project Surveyor, Sr. GIS Analyst, CAD Manager, Project CAD Tech, Sr. Project Inspector, Survey Field Tech I, One -Person Crew, BIM Manager, Ecologist IV, Engineer IV, Scientist I 10. Landscape Architect IV, Project Engineer, Project Designer II, Project Planner, Sr. Project Surveyor, Sr. Project GIS Analyst, Structural Engineer, UAS Pilot, Scientist II, Ecologist V 11. Sr. Landscape Architect, Sr. Project Engineer, Sr. Structural Engineer, Sr. Project Designer, IT Manager, Sr. Project Planner, Survey Project Manager, Tech Services Manager, Sr. Ecologist/Scientist 12. Principal Ecologist/Scientist, Project Manager, Principal Surveyor, Planning Project Manager 13. Sr. Principal Ecologist/Scientist, Sr. Project Manager, Sr. Principal Surveyor, Two -Person Crew 14. Principal Engineer, Principal Planner, Sr. Two -Person Crew 15. Sr. Principal Engineer, Sr. Principal Planner HOURLY RATE $ 65.00 $ 80.00 $ 100.00 $ 120.00 $ 136.00 $ 151.00 $ 166.00 $ 181.00 $ 194.00 $ 209.00 $ 222.00 $ 238.00 $ 252.00 $ 272.00 $ 288.00 REIMBURSABLES A. Subconsultants, Professional and Technical B. Project Administration C. Maps, reports, materials, permit fees, express delivery and messenger, pass -through bills, and similar items necessary for work in progress D. Out -of -Town travel per diem and cost of commercial transportation E. Transportation within 30 Mile Radius * Transportation beyond 30 Mile Radius -Automobile * On job inspection mileage will be billed F. Printing Costs Large Format Blueprints and Reproduction - Bond Large Format Blueprints and Reproduction - Mylar Color Copies- In-house (81/2x 11) G. Expert Witness Cost + 15% $60.00/Invoice Cost + 15% Cost + 10% No Charge At Approved IRS Rate At Approved IRS Rate $ 0.50/sq ft $ 1.50/sq ft $ 0.25/page Rate x 1.5 Notes: 1 All payment is due within 30 days from date of invoice. A monthly service charge of 1 % will be added on all accounts older than 30 days. 2 The foregoing schedule of charges is incorporated into the agreement for the services provided effective January 1, 2024. After December 31, 2024, invoices will reflect the schedule of charges in effect at that time. 102 May 6, 2024 PACE Engineers, Inc. 11255 Kirkland Way, Suite 300 Kirkland, Washington 98033 Attention: Brian Way, PLA, ASLA Subject: Revised Proposal Phase Ila Additional Wetland and Stream Delineations Geotechnical Engineering and Environmental Permitting Services South 131st Place Drainage Improvements Project Tukwila, Washington File No. 0259-061-00 Thank you for the opportunity to provide this proposal for additional environmental permitting services in support of Phase lia of the South 131st Place Drainage Improvements Project in Tukwila, Washington. Our understanding of the requested services is based on email correspondence with you on March 26 and April 1, 2024, as well as a coordination call with PACE Engineers and City of Tukwila representatives on May 3, 2024, as reflected in the attached project area markup (see Exhibit A, Tukwila Survey 2024). The additional scope requested will supplement previous critical areas assessment work we have completed on the project and be incorporated into the existing ordinary high water mark (OHWM) and wetland documentation produced under our existing contract. It is our understanding that the additional services described below will be completed as part of Phase Ila, and that permitting associated with critical areas will be completed as part of Phase Ilb, which is not scoped yet, but may be provided through a future contract amendment. Scope of Services Our proposed scope of services for this contract amendment is identified as a new task, Task 9.6, following the task sequencing convention previously established for the project. SUBTASK 9.6 - PHASE IIA ADDITIONAL WETLAND AND STREAM DELINEATIONS The purpose of this subtask is to identify and document regulated aquatic critical areas (wetlands and streams) and delineate regulatory wetland and OHWM boundaries within the new survey areas identified on Exhibit A. This scope specifically includes: • Review available project -specific data and publicly available wetland, stream, wildlife and soil databases within the new areas to be surveyed. 103 • Complete a site reconnaissance to identify and delineate wetlands and stream OHWM within the new survey areas that are protected by federal, state or local regulations. ❑ If wetlands are identified, we will flag wetland boundaries, collect wetland test plot data and rate each wetland according to the current 2014 Washington State Wetland Rating System for Western Washington. ❑ We will also delineate and flag the OHWM of streams within the new survey areas. ❑ Identify limits of reed canarygrass (Phalaris arundinacea) within Washington State Department of Transportation (WSDOT) right-of-way (ROW). ❑ Wetlands and streams will be marked in the field with survey flagging for subsequent professional land survey and incorporation onto the project base map. • Integrate findings associated with the new survey areas into the existing wetland report addressing the South 131st Place culvert replacement project. ❑ Wetland and stream ratings and regulatory buffers will be included in the report and will be based on the City of Tukwila (City) code. ❑ In addition to incorporating the findings associated with the new survey areas, this scope includes collecting limited additional field sampling (up to four new wetland sample plots) and reporting of our newly collected and prior findings associated with the "Triangle Property" (Parcels 2613200134 and 2613200087) for which field data was previously collected as part of Amendment 1 to our contract. • Attend up to six meetings with the City and/or PACE Engineers during the execution of this phase. • Project management, accounting and administrative support during execution of scope identified above. Assumptions • Phase duration is anticipated to be 16 weeks. Our project management and meeting budget is based on this schedule. • All previously scoped work and budget remaining associated with our original contract and Amendment 1 is cancelled and will not be available for the execution of this phase or future phases. Consequently, the following previously scoped tasks are removed from the current scope: ❑ Task 9.2, Environmental Documents and Permit Applications ❑ Task 9.3, Permit Submittal and Coordination ❑ Contingency tasks for wetland hydrology monitoring study and wetland mitigation planning/design • The extents of additional wetland/stream delineation areas are identified on Exhibit A, as annotated. • Professional Land Survey of the OHWM and/or wetland boundaries will be provided by PACE Engineers, Inc. (PACE) and is not included. • The findings associated with the new survey area will be incorporated into the previously developed Draft Critical Areas Report for the project, for resubmittal to PACE. • We assume right -of -entry permission will be coordinated by PACE and City. This assumes right -of -entry permission by adjacent property owners to assess habitat conditions on their property. If access is not granted, a visual, "over -the -fence" assessment will be performed from the City right-of-way (ROW). 104 • We assume up to four days of field work completed by two biologists will be necessary to complete fieldwork within the new survey areas. • This scope and fee estimate does not include any permitting associated with critical areas. • All deliverables will be provided as electronic files. Schedule, Fee Estimate and Terms We are in a position to begin work 3 weeks after receiving your authorization to proceed. Our services will be completed in accordance with the terms of our existing agreement, dated October 18, 2022. The fee for our services will be determined on a time and materials basis using the rates contained in our 2024 Standard Schedule of Charges, which is attached to this proposal. We will endeavor to keep you apprised of project status and conditions that may significantly affect our scope and estimate. The total estimated fees for the work described above is presented in the table below. TASK ESTIMATED BUDGET Subtask 9.6 - Phase IIA Additional Wetland and Stream Delineations $34,700 Unspent Funds from Phase 1 Contract - Cancelled Tasks (credit) ($68,605) Total for Amendment 2 ($33,905) Original Contract Budget $121,300 Amendment 1 $7,000 Total Revised Budget $94,395 There are no intended third -party beneficiaries arising from the services described in this proposal and no party other than the party executing this proposal shall have the right to legally rely on the product of our services without prior written permission of GeoEngineers. 105 This proposal is valid for a period of 60 days commencing from the first date listed above and subject to renegotiation by GeoEngineers, Inc., after the expiration date. Sincerely, GeoEngineers, Inc. Emily R. Hurn Senior Environmental Scientist ERH:DBC:tIm Attachments: Exhibit A: Tukwila Survey 2024 Schedule of Charges - GeoEngineers Standard 2024 Schedule of Charges - Redmond -Seattle -Tacoma Lab Inside Charges 2024 David B. Conlin, MA, PWS Associate Proprietary Notice: The contents of this document are proprietary to GeoEngineers, Inc. and are intended solely for use by our clients and their design teams to evaluate GeoEngineers' capabilities and understanding of project requirements as they relate to performing the services proposed for a specific project. Copies of this document or its contents may not be disclosed to any other parties without the written consent of GeoEngineers. Disclaimer: Any electronic form, facsimile or hard copy of the original document (email, text, table, and/or figure), if provided, and any attachments are only a copy of the original document. The original document is stored by GeoEngineers, Inc. and will serve as the official document of record. Copyright© 2024 by GeoEngineers, Inc. All rights reserved. 106 0600485' rn 7340600681 73406007447340600743 • r 734060074.E 7340600735 • 7340600745 73406007477340600748 Legend Storm Catch Basin o Storm Drain Point Storm Pipe 3406007 10236666- 30455 5 7345601060 7345601075 7340600720 7345601085 1023046666 0004:i0 6' tia ,a — _ +0 0004800002 7349200005 Sewer Pipe Street & Hwy Id Storm Ditch — - Stream New Survey Water Line Parcel 2-ft Contour 0004800012 - - 60A0030 N 0 85 170 340 Feet I i I i I 107 34060074 3406 mow 7340600844 7340600840 7341600085 7 3406 00745 406Q98413 co 7340600842 7340600845 a)N 0) ' \ A 7341600160 c 73416052431 v 7341600150 `7341600110 j 73414)0140 o In '341600116 7341600130 7gi 6000 co Lo 4 73416Q9jal6r • 734160011 734'd0045 • 7340600860 7340600884 7340600720 n rn 7345601085 W co N N W N 7345601090 co c) m o'> 734560 34560111 7345601 rn 7349200005 �3492 w; 7 456011.0 7 456011 5 7340600722 0008 ;' 261320013 0235`4'• No 26132 34 7349200255 116 749200245 92003\45 271600001014 0004800002 2`D Legend Storm Catch Basin o Storm Drain Point Storm Pipe Sewer Pipe Street & Hwy Storm Ditch — - Stream Id Water Line Parcel Previous Survey 2-ft Contour New Survey 0 85 170 340 Feet I i I i I 108 A 7340600`722 �y ••• � g: 2613200130 7349601 Q 10 8 001 9 Qs 2613200134 200086 13200084 13200045 ',, 261#200055 Legend Storm Catch Basin o Storm Drain Point Storm Pipe Sewer Pipe Street & Hwy Storm Ditch — - Stream Id Water Line Parcel Previous Survey 2-ft Contour New Survey 2613200047 0 85 170 340 Feet I I I I I 109 NA 200133 613200085 26.1320 Legend 2613200086 r 1320017 Storm Catch Basin o Storm Drain Point Storm Pipe 2613200049 2613 Sewer Pipe Street & Hwy Storm Ditch — - Stream Id Water Line Parcel 2613200047 18 200004 26132081;148 26132 035• 2613200050 2613200025 61320002 / I2613200021 d Previous Survey 2-ft Contour New Survey 61660007 61660008 2616600070 2616600074 7300006- 730000 5673000090 56730000 , goons 0 85 170 340 Feet I I I I I 110 Page 1 of 2 Schedule of Charges - 2024 COMPENSATION Our compensation will be determined on the basis of time and expenses in accordance with the following schedule unless a lump sum amount is so indicated in the proposal or services agreement. Current rates are: PROFESSIONAL STAFF Staff 1 Scientist $ 146/hour Staff 1 Engineer $ 154/hour Staff 2 Scientist $ 167/hour Staff 2 Engineer $ 175/hour Staff 3 Scientist $ 191/hour Staff 3 Engineer $ 198/hour Project Scientist 1 $ 220/hour Project Engineer 1 $ 228/hour Project Scientist 2 $ 228/hour Project Engineer 2 $ 234/hour Senior Engineer/Scientist 1 $ 255/hour Senior Engineer/Scientist 2 $ 279/hour Associate $ 292/hour Principal $ 320/hour Senior Principal $ 340/hour TECHNICAL SUPPORT STAFF Administrator 1 $ 103/hour Administrator 2 $ 119/hour Administrator 3 $ 136/hour CAD Technician $ 132/hour CAD Designer $ 155/hour Senior CAD Designer $ 180/hour GIS Analyst $ 165/hour Senior GIS Analyst $ 180/hour GIS Coordinator $ 200/hour *Technician $ 114/hour *Senior Technician $ 136/hour *Lead Technician $ 146/hour Geotechnical Construction Specialist $ 191/hour Environmental Database Manager $ 226/hour Health and Safety Specialist $ 146/hour Health and Safety Manager $ 200/hour *Hours in excess of 8 hours in a day or 40 hours in a week will be charged at one and one -quarter times the hourly rates listed above. Contracted professional and technical services will be charged at the applicable hourly rates listed above. Staff time spent providing expert services in disputes, mediation, arbitration and litigation will be billed at one and one-half times the above rates. Time spent in either local or inter -city travel, when travel is in the interest of this contract, will be charged in accordance with the foregoing schedule. A surcharge may be applied to night and weekend work. See proposal for details. Rates for data storage and web -based access will be provided on a project -specific basis. Associated Project Costs (APC) Associated Project Costs (APC) equal to six percent (6%) of professional fees will be assessed. This fee allows GeoEngineers to invest in the necessary infrastructure to ensure we provide our clients with the latest technological and data security standards. The investments include maintaining and advancing technical tools and platforms across all aspects of our business, and strengthening our defenses against cyber threats to ensure data remains secure. These costs are not included in our hourly rates or direct expenses. Schedule_GeoEngineers Standard-2024 GEOENGI N EERS Page 2 of 2 EQUIPMENT Air Quality Equipment, per Day $ 210.00 Air Sparging Field Test, per Day $ 110.00 Air/Vapor Monitoring Equipment (PID, 5-Gas Meter), per Day $ 110.00 Asbestos Sample Kit, Each $ 30.00 Blastmate, per Day $ 120.00 D&M Sampler, per Day $ 150.00 DO (Dissolved Oxygen) Kit, Each $ 25.00 Dynamic Cone Penetrometer, per Day $ 45.00 E-Tape (Electric Tape), per Day $ 35.00 Electric Density Gauge, per Day $ 110.00 Electric Density Gauge, per Week $ 430.00 Electric Density Gauge, per Month $ 1,400.00 Environmental Exploration Equipment, per Day $ 225.00 Field Data Acquisition Equipment (Field Tablet), per Day $ 55.00 Field Tablet, per Week $ 200.00 Field Tablet, per Month $ 750.00 Field Tablet with Cellular, per Day $ 75.00 Field Tablet with Cellular, per Week $ 300.00 Field Tablet with Cellular, per Month $ 1,000.00 Field Gear/ Reconnaissance, per Day $ 55.00 Gas Detection Meters, per Day $ 105.00 Generator, per Day $ 110.00 Groundwater Pressure Transducer w/ Datalogger, per Day $ 55.00 Groundwater Pressure Transducer w/ Datalogger, per Week $ 220.00 Hand Auger, per Day $ 100.00 Inclinometer Probe, per Day, 1 Day minimum $ 210.00 Interface Probe, per Day $ 65.00 Iron Test Kit, Each $ 25.00 Laser Level, per Day $ 60.00 Low Flow Groundwater Sampling Equipment, per Day $ 235.00 Multiparameter Water Quality Meter, per Day $ 85.00 Nuclear Density Gage, per Hour, 1/2 Day minimum $ 15.00 Peristaltic Pump, per Day $ 50.00 pH Probe,/Meter per Day $ 20.00 PID, FID or OVA, per Day $ 130.00 Rock/Slope Fall Protection/Rigging Equipment, per Day $ 700.00 Saximeter, per Day $ 60.00 Scuba Diving Gear, per Day/per Diver $ 700.00 Shallow Soil Exploration Equipment, per Day $ 60.00 Soil Field Screening Equipment, per Day $ 20.00 Soil Sample Kit, Each $ 20.00 Steam Flow Meter, per Day $ 20.00 Strain Gauge Readout Equipment, per Day $ 50.00 Surface Water Flow Meter, per Day, 1/2 day minimum $ 50.00 Surface Water Quality Monitoring Equipment, per Day $ 50.00 Turbidity Meter, per Day $ 50.00 Vehicle usage, per Mile, or $30/half-day, whichever is greater $ 0.65 Specialized and miscellaneous field equipment not listed above will be quoted on a project -specific basis. OTHER SERVICES, SUPPLIES AND SPECIAL TAXES Charges for services, equipment, supplies and facilities not furnished in accordance with the above schedule, and any unusual items of expense not customarily incurred in our normal operations, are charged at cost plus 15 percent. This includes shipping charges, subsistence, transportation, printing and reproduction, miscellaneous supplies and rentals, surveying services, drilling equipment, construction equipment, watercraft, aircraft, and special insurance which may be required. Taxes required by local jurisdictions for projects in specific geographic areas will be charged to projects at direct cost. Per diem may be charged in lieu of subsistence and lodging. Routinely used field supplies stocked in-house by GeoEngineers, at current rates, list available upon request. In-house testing for geotechnical soil characteristics at current rates, list available upon request. All rates are subject to change upon notification. Schedule_GeoEngineers Standard-2024 GEOENGI N EERS Page 1 of 2 Laboratory Schedule of Charges - 2024 TYPE OF TEST Soil Index and Classification Tests Soil Description (ASTM D 2488) Moisture Content Oven (ASTM D 2216) Moisture/Density (ASTM D 7263, D 2937) Rings Shelby Tubes, waxed chunk Tubes (liners), chunk Particle Size Analysis Percent Passing No. 200 (ASTM D 1140) Sieve (ASTM D 422, D 6913, C 136 includes minus 200 Wash, Dry Sieve) Gravel Sieve (ASTM D 422, D 6913, C 136 includes minus 200 Wash, Dry Sieve) Hydrometer Only (ASTM D 422, minus #10 fraction) Combined Sieve and Hydrometer (ASTM D 422-63) Combined Gravel Sieve and Hydrometer (ASTM D 422-63) Organic Content (ASTM D 2974) Atterberg Limits (ASTM D 4318) Organic Compaction (ASTM D 698/D 1557, AASHTO T 99/T 180, Methods A, B and C) Granular/Cohesive (1 Point) Granular (4 Point) Cohesive (4 Point) Strength and Consolidation Tests Triaxial Compression Unconfined Comp. Strength - UCS (ASTM D 2166) Unconsolidated Undrained - UU (ASTM D 2850) Unconsolidated Undrained (back pressure saturation) Consolidated Undrained - CU (ASTM D 4767) with pore pressure measurement Consolidated Undrained (3 points, staged) Consolidation (ASTM D 2435) With Reload With Reload and Unload Additional timed load increments, each Constant Rate of Strain Consolidation (ASTM D 4186) CBR, 1 point with Proctor (ASTM D 1883) Additional points, each Corrosion Tests Soil Resistivity (ASTM G 187) pH of Soil (ASTM D 4972 / G 51) Permeability Tests In triaxial cell with back pressure saturation (ASTM D 5084) Soil Sample Preparation Extrusion - Extrude and log (visual classification) Shelby tube sample Remolding - Remolding a soil sample to desired moisture and density Soil - Cement/Lime Treatment Aggregate and Rock Tests Point Load Test or Rock Core (ASTM D5731) UNIT PRICE 17 23 40 50 50 110 150 220 180 280 350 85 210 110 130 305 325 135 265 500 625 1,600 675 750 850 80 1,000 530 160 75 50 740 70 Hourly Hourly - negotiated 80 *Please contact us regarding test procedures which are not listed or for tests on contaminated soils. Negotiated unit rates or hourly rates will be charged for these procedures. *Unit prices reflect a typical standard turnaround time of 10 business days for most analyses (with the exception of density and secondary testing). Expedited test results are subject to 50% to 100% surcharge and are subject to lab availability to meet the expedited schedule. **Not WABO-certified. All rates are subject to change upon notification. Schedule_Lab_Inside_Charges_Redmond-Seattle-Tacoma-Portland-2024 GEOENGINEERS7